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DoEasy 函数库中的图形（第八十五部分）：图形对象集合 - 添加新创建的对象

DoEasy 函数库中的图形（第八十五部分）：图形对象集合 - 添加新创建的对象

MetaTrader 5 — 示例 |
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Artyom Trishkin
Artyom Trishkin

内容


概述

我们已拥有一些从抽象图形对象类派生的对象类。 在上一篇文章中，我为曲线（Lines）、通道（Channels）、江恩（Gann）、斐波那契（Fibo） 和埃洛特（Elliott）组实现了此类对象。 在此，我将添加造型、箭头和图形对象组的对象类。 此外，图形对象集合类拥有把手工创建的图形对象添加到集合列表的功能。


改进库类

首先，我注意到我对英文单词 “Standard” 犯了一个恼人的错误。 我在拼写它时用 “t” 作为最后一个字母。 因此，我对所有拼写错误的文件进行了更正。 相应地，我重命名了相应的函数库文件夹。 在此列出所有相应的文件并无实际意义。 您可以通过按 Shift+Ctrl+F 并选择必要的单词、函数库文件夹，及在子文件夹中进行搜索来找到它们：


搜索整个单词时没必要考虑大小写。 我们简单地在函数库文件文本中查找出现的 “standart”，并更改最后一个字母。

我已经这样做了，所以您所要做的就是用下面附加的文件夹替换终端 Include 目录中的 DoEasy 文件夹。

我们以 \MQL5\Include\DoEasy\Defines.mqh 为例。 我已经更正了拼写错误，并修正了枚举图形对象整数属性的常量名称： 

//+------------------------------------------------------------------+
//| Data for working with indicators                                 |
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+
//| Abstract indicator status                                        |
//+------------------------------------------------------------------+
enum ENUM_INDICATOR_STATUS
  {
   INDICATOR_STATUS_STANDARD,                               // Standard indicator
   INDICATOR_STATUS_CUSTOM,                                 // Custom indicator
  };
//+------------------------------------------------------------------+
//| Indicator group                                                  |
//+------------------------------------------------------------------+

...

//+------------------------------------------------------------------+
//| List of graphical objects affiliations                           |
//+------------------------------------------------------------------+
enum ENUM_GRAPH_OBJ_BELONG
  {
   GRAPH_OBJ_BELONG_PROGRAM,                          // Graphical object belongs to a program
   GRAPH_OBJ_BELONG_NO_PROGRAM,                       // Graphical object does not belong to a program
  };
//+------------------------------------------------------------------+
//| The list of graphical element types                              |
//+------------------------------------------------------------------+
enum ENUM_GRAPH_ELEMENT_TYPE
  {
   GRAPH_ELEMENT_TYPE_STANDARD,                       // Standard graphical object
   GRAPH_ELEMENT_TYPE_ELEMENT,                        // Element
   GRAPH_ELEMENT_TYPE_SHADOW_OBJ,                     // Shadow object
   GRAPH_ELEMENT_TYPE_FORM,                           // Form
   GRAPH_ELEMENT_TYPE_WINDOW,                         // Window
  };
//+------------------------------------------------------------------+
//| Graphical object group                                           |
//+------------------------------------------------------------------+

...

//--- Properties belonging to different graphical objects
   GRAPH_OBJ_PROP_TIME,                               // Time coordinate
   GRAPH_OBJ_PROP_COLOR,                              // Color
   GRAPH_OBJ_PROP_STYLE,                              // Style
   GRAPH_OBJ_PROP_WIDTH,                              // Line width
   GRAPH_OBJ_PROP_FILL,                               // Object color filling
   GRAPH_OBJ_PROP_READONLY,                           // Ability to edit text in the Edit object
   GRAPH_OBJ_PROP_LEVELS,                             // Number of levels
   GRAPH_OBJ_PROP_LEVELCOLOR,                         // Level line color
   GRAPH_OBJ_PROP_LEVELSTYLE,                         // Level line style
   GRAPH_OBJ_PROP_LEVELWIDTH,                         // Level line width
   GRAPH_OBJ_PROP_ALIGN,                              // Horizontal text alignment in the Edit object (OBJ_EDIT)
   GRAPH_OBJ_PROP_FONTSIZE,                           // Font size
   GRAPH_OBJ_PROP_RAY_LEFT,                           // Ray goes to the left
   GRAPH_OBJ_PROP_RAY_RIGHT,                          // Ray goes to the right
   GRAPH_OBJ_PROP_RAY,                                // Vertical line goes through all windows of a chart
   GRAPH_OBJ_PROP_ELLIPSE,                            // Display the full ellipse of the Fibonacci Arc object
   GRAPH_OBJ_PROP_ARROWCODE,                          // Arrow code for the "Arrow" object
   GRAPH_OBJ_PROP_ANCHOR,                             // Position of the binding point of the graphical object
   GRAPH_OBJ_PROP_XDISTANCE,                          // Distance from the base corner along the X axis in pixels
   GRAPH_OBJ_PROP_YDISTANCE,                          // Distance from the base corner along the Y axis in pixels
   GRAPH_OBJ_PROP_DIRECTION,                          // Gann object trend
   GRAPH_OBJ_PROP_DEGREE,                             // Elliott wave marking level
   GRAPH_OBJ_PROP_DRAWLINES,                          // Display lines for Elliott wave marking
   GRAPH_OBJ_PROP_STATE,                              // Button state (pressed/released)
   GRAPH_OBJ_PROP_CHART_OBJ_CHART_ID,                 // Chart object ID (OBJ_CHART).
   GRAPH_OBJ_PROP_CHART_OBJ_PERIOD,                   // Chart object period
   GRAPH_OBJ_PROP_CHART_OBJ_DATE_SCALE,               // Time scale display flag for the Chart object
   GRAPH_OBJ_PROP_CHART_OBJ_PRICE_SCALE,              // Price scale display flag for the Chart object
   GRAPH_OBJ_PROP_CHART_OBJ_CHART_SCALE,              // Chart object scale
   GRAPH_OBJ_PROP_XSIZE,                              // Object width along the X axis in pixels.
   GRAPH_OBJ_PROP_YSIZE,                              // Object height along the Y axis in pixels.
   GRAPH_OBJ_PROP_XOFFSET,                            // X coordinate of the upper-left corner of the visibility area.
   GRAPH_OBJ_PROP_YOFFSET,                            // Y coordinate of the upper-left corner of the visibility area.
   GRAPH_OBJ_PROP_BGCOLOR,                            // Background color for OBJ_EDIT, OBJ_BUTTON, OBJ_RECTANGLE_LABEL
   GRAPH_OBJ_PROP_CORNER,                             // Chart corner for binding a graphical object
   GRAPH_OBJ_PROP_BORDER_TYPE,                        // Border type for "Rectangle border"
   GRAPH_OBJ_PROP_BORDER_COLOR,                       // Border color for OBJ_EDIT and OBJ_BUTTON
  };
#define GRAPH_OBJ_PROP_INTEGER_TOTAL (52)             // Total number of integer properties
#define GRAPH_OBJ_PROP_INTEGER_SKIP  (0)              // Number of integer properties not used in sorting
//+------------------------------------------------------------------+
//| Real properties of a standard graphical object                   |
//+------------------------------------------------------------------+

图表对象 ID (OBJ_CHART) 常量以前称为 “GRAPH_OBJ_PROP_OBJ_CHART_ID”，现要从描述图表对象属性的枚举常量列表中删除。 现在它们都得以统一。

在所有函数库文件中，任何对错误 GRAPH_OBJ_PROP_OBJ_CHART_ID 常量的引用现在都替换为 GRAPH_OBJ_PROP_CHART_OBJ_CHART_ID。

在 \MQL5\Include\DoEasy\Data.mqh 中，添加函数库新消息索引：

   MSG_GRAPH_OBJ_PROP_GROUP,                          // Graphical object group
   MSG_GRAPH_OBJ_PROP_GROUP_LINES,                    // Lines
   MSG_GRAPH_OBJ_PROP_GROUP_CHANNELS,                 // Channels
   MSG_GRAPH_OBJ_PROP_GROUP_GANN,                     // Gann
   MSG_GRAPH_OBJ_PROP_GROUP_FIBO,                     // Fibo
   MSG_GRAPH_OBJ_PROP_GROUP_ELLIOTT,                  // Elliott
   MSG_GRAPH_OBJ_PROP_GROUP_SHAPES,                   // Shapes
   MSG_GRAPH_OBJ_PROP_GROUP_ARROWS,                   // Arrows
   MSG_GRAPH_OBJ_PROP_GROUP_GRAPHICAL,                // Graphical objects
   
   MSG_GRAPH_OBJ_TEXT_CLICK_COORD,                    // (Chart click coordinate)
   MSG_GRAPH_OBJ_TEXT_ANCHOR_TOP,                     // Arrow anchor point is located at the top
   MSG_GRAPH_OBJ_TEXT_ANCHOR_BOTTOM,                  // Arrow anchor point is located at the bottom
   
   MSG_GRAPH_OBJ_TEXT_ANCHOR_LEFT_UPPER,              // Anchor point at the upper left corner
   MSG_GRAPH_OBJ_TEXT_ANCHOR_LEFT,                    // Anchor point at the left center
   MSG_GRAPH_OBJ_TEXT_ANCHOR_LEFT_LOWER,              // Anchor point at the lower left corner
   MSG_GRAPH_OBJ_TEXT_ANCHOR_LOWER,                   // Anchor point at the bottom center
   MSG_GRAPH_OBJ_TEXT_ANCHOR_RIGHT_LOWER,             // Anchor point at the lower right corner
   MSG_GRAPH_OBJ_TEXT_ANCHOR_RIGHT,                   // Anchor point at the right center
   MSG_GRAPH_OBJ_TEXT_ANCHOR_RIGHT_UPPER,             // Anchor point at the upper right corner
   MSG_GRAPH_OBJ_TEXT_ANCHOR_UPPER,                   // Anchor point at the upper center
   MSG_GRAPH_OBJ_TEXT_ANCHOR_CENTER,                  // Anchor point at the very center of the object
   
   MSG_GRAPH_OBJ_FAILED_GET_ADDED_OBJ_LIST,           // Failed to get the list of newly added objects
   MSG_GRAPH_OBJ_FAILED_DETACH_OBJ_FROM_LIST,         // Failed to remove a graphical object from the list
   
  };
//+------------------------------------------------------------------+

以及与新添加的索引相对应的文本消息：

   MSG_GRAPH_OBJ_PROP_GROUP,                          // Graphical object group
   MSG_GRAPH_OBJ_PROP_GROUP_LINES,                    // Lines
   MSG_GRAPH_OBJ_PROP_GROUP_CHANNELS,                 // Channels
   MSG_GRAPH_OBJ_PROP_GROUP_GANN,                     // Gann
   MSG_GRAPH_OBJ_PROP_GROUP_FIBO,                     // Fibo
   MSG_GRAPH_OBJ_PROP_GROUP_ELLIOTT,                  // Elliott
   MSG_GRAPH_OBJ_PROP_GROUP_SHAPES,                   // Shapes
   MSG_GRAPH_OBJ_PROP_GROUP_ARROWS,                   // Arrows
   MSG_GRAPH_OBJ_PROP_GROUP_GRAPHICAL,                // Graphical objects
   
   MSG_GRAPH_OBJ_TEXT_CLICK_COORD,                    // (Chart click coordinate)
   MSG_GRAPH_OBJ_TEXT_ANCHOR_TOP,                     // Arrow anchor point is located at the top
   MSG_GRAPH_OBJ_TEXT_ANCHOR_BOTTOM,                  // Arrow anchor point is located at the bottom
   
   MSG_GRAPH_OBJ_TEXT_ANCHOR_LEFT_UPPER,              // Anchor point at the upper left corner
   MSG_GRAPH_OBJ_TEXT_ANCHOR_LEFT,                    // Anchor point at the left center
   MSG_GRAPH_OBJ_TEXT_ANCHOR_LEFT_LOWER,              // Anchor point at the lower left corner
   MSG_GRAPH_OBJ_TEXT_ANCHOR_LOWER,                   // Anchor point at the bottom center
   MSG_GRAPH_OBJ_TEXT_ANCHOR_RIGHT_LOWER,             // Anchor point at the lower right corner
   MSG_GRAPH_OBJ_TEXT_ANCHOR_RIGHT,                   // Anchor point at the right center
   MSG_GRAPH_OBJ_TEXT_ANCHOR_RIGHT_UPPER,             // Anchor point at the upper right corner
   MSG_GRAPH_OBJ_TEXT_ANCHOR_UPPER,                   // Anchor point at the upper center
   MSG_GRAPH_OBJ_TEXT_ANCHOR_CENTER,                  // Anchor point at the very center of the object
   
   MSG_GRAPH_OBJ_FAILED_GET_ADDED_OBJ_LIST,           // Failed to get the list of newly added objects
   MSG_GRAPH_OBJ_FAILED_DETACH_OBJ_FROM_LIST,         // Failed to remove a graphical object from the list
   
  };
//+------------------------------------------------------------------+


不同的图形对象却拥有相同的“图形对象锚点的位置”属性，但针对不同对象指定绑定方法的枚举不同。 文本（Text）、标签（Label）、位图（Bitmap）和位图标签（Bitmap Label） 需要 ENUM_ANCHOR_POINT 枚举，而箭头（Arrow） 对象则应用 ENUM_ARROW_ANCHOR。

考虑到这一点，该抽象图形对象类的方法在返回对象锚点属性时为 int 类型，而非这些类型枚举之一，因为我们不知道哪个对象是派生自该类，以及理应返回哪种枚举类型。 衍生后代将提供自己的方法，返回必要的绑定方法枚举类型。 抽象类有一个虚方法来显示绑定方法描述

//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return (string)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR);}

每个继承的类都拥有相同的虚方法，返回必要的描述类型（或来自 ENUM_ARROW_ANCHOR，或来自 ENUM_ANCHOR_POINT 枚举的绑定方法）。

为了能够选择显示绑定方法的必要方法，将显示这些枚举值描述的函数添加到服务函数文件 \MQL5\Include\DoEasy\Services\DELib.mqh 之中：

//+------------------------------------------------------------------+
//| Return the anchor point description                              |
//| for the Arrow graphical object                                   |
//+------------------------------------------------------------------+
string AnchorForArrowObjDescription(const ENUM_ARROW_ANCHOR anchor)
  {
   return
     (
      anchor==ANCHOR_TOP      ? CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_TOP)    :
      anchor==ANCHOR_BOTTOM   ? CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_BOTTOM) :
      "Unknown"
     );
  }
//+------------------------------------------------------------------+
//| Return the anchor point description for graphical objects        |
//+------------------------------------------------------------------+
string AnchorForGraphicsObjDescription(const ENUM_ANCHOR_POINT anchor)
  {
   return
     (
      anchor==ANCHOR_LEFT_UPPER  ?  CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_LEFT_UPPER)  :
      anchor==ANCHOR_LEFT        ?  CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_LEFT)        :
      anchor==ANCHOR_LEFT_LOWER  ?  CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_LEFT_LOWER)  :
      anchor==ANCHOR_LOWER       ?  CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_LOWER)       :
      anchor==ANCHOR_RIGHT_LOWER ?  CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_RIGHT_LOWER) :
      anchor==ANCHOR_RIGHT       ?  CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_RIGHT)       :
      anchor==ANCHOR_RIGHT_UPPER ?  CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_RIGHT_UPPER) :
      anchor==ANCHOR_UPPER       ?  CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_UPPER)       :
      anchor==ANCHOR_CENTER      ?  CMessage::Text(MSG_GRAPH_OBJ_TEXT_ANCHOR_CENTER)      :
      "Unknown"
     );
  }
//+------------------------------------------------------------------+
//| Return the flag of displaying the graphical                      |
//| object on a specified chart timeframe                            |
//+------------------------------------------------------------------+

在此，根据所传递数值，我们会收到相应的文本描述。


添加抽象图形对象的其余衍生后代对象

在 \MQL5\Include\DoEasy\Objects\Graph\Standard\ 中，添加抽象图形对象的其余衍生后代类。

所有对象都应该继承自 CGStdGraphObj 类，并且类文件应该包含在所创建的文件当中。

矩形图形对象类：

//+------------------------------------------------------------------+
//|                                             GStdRectangleObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Rectangle graphical object                                       |
//+------------------------------------------------------------------+
class CGStdRectangleObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdRectangleObj(const long chart_id,const string name) :
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_RECTANGLE,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_SHAPES,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FILL,::ObjectGetInteger(chart_id,name,OBJPROP_FILL));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the (ENUM_OBJECT) type description
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_RECTANGLE); }
  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdRectangleObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_FILL         : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdRectangleObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdRectangleObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdRectangleObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdRectangleObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

如此每个类的构造函数只接收和保存属于该类所定义的图形对象类型的对象属性。 类似地，方法返回指示对象支持其属性的标志，仅列出图形对象支持的属性。

我们来看看标准图形对象的其它类，并在必要时往类代码里添加注释。

三角形图形对象类： 

//+------------------------------------------------------------------+
//|                                             CGStdTriangleObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Triangle graphical object                                        |
//+------------------------------------------------------------------+
class CGStdTriangleObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdTriangleObj(const long chart_id,const string name) :
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_TRIANGLE,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_SHAPES,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FILL,::ObjectGetInteger(chart_id,name,OBJPROP_FILL));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_TRIANGLE); }
  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdTriangleObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_FILL         : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdTriangleObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdTriangleObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdTriangleObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdTriangleObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

椭圆图形对象类： 

//+------------------------------------------------------------------+
//|                                               GStdEllipseObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Ellipse graphical object                                         |
//+------------------------------------------------------------------+
class CGStdEllipseObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdEllipseObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ELLIPSE,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_SHAPES,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FILL,::ObjectGetInteger(chart_id,name,OBJPROP_FILL));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ELLIPSE); }
  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdEllipseObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_FILL         : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdEllipseObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdEllipseObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdEllipseObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdEllipseObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

竖拇指图形对象类： 

//+------------------------------------------------------------------+
//|                                          GStdArrowThumbUpObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Thumb up graphical object                                        |
//+------------------------------------------------------------------+
class CGStdArrowThumbUpObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowThumbUpObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_THUMB_UP,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ARROWCODE,::ObjectGetInteger(chart_id,name,OBJPROP_ARROWCODE));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_THUMB_UP);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowThumbUpObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_ARROWCODE    : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowThumbUpObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowThumbUpObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowThumbUpObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowThumbUpObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

除了在类构造函数中编写必要的对象属性之外，我还添加了返回绑定方法的方法，返回 ENUM_ARROW_ANCHOR 枚举类型，和返回锚点方法描述的虚方法，其值是由我在服务函数文件中添加的 AnchorForArrowObjDescription() 函数返回的。

倒竖拇指图形对象类： 

//+------------------------------------------------------------------+
//|                                        GStdArrowThumbDownObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Thumb down graphical object                                      |
//+------------------------------------------------------------------+
class CGStdArrowThumbDownObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowThumbDownObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_THUMB_DOWN,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ARROWCODE,::ObjectGetInteger(chart_id,name,OBJPROP_ARROWCODE));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_THUMB_DOWN);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowThumbDownObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_ARROWCODE    : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowThumbDownObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowThumbDownObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowThumbDownObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowThumbDownObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

向上箭头图形对象类： 

//+------------------------------------------------------------------+
//|                                               GStdArrowUpObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Arrow up graphical object                                        |
//+------------------------------------------------------------------+
class CGStdArrowUpObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowUpObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_UP,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ARROWCODE,::ObjectGetInteger(chart_id,name,OBJPROP_ARROWCODE));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_UP);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowUpObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_ARROWCODE    : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowUpObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowUpObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowUpObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowUpObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

向下箭头图形对象类： 

//+------------------------------------------------------------------+
//|                                             GStdArrowDownObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Arrow down graphical object                                      |
//+------------------------------------------------------------------+
class CGStdArrowDownObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowDownObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_DOWN,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ARROWCODE,::ObjectGetInteger(chart_id,name,OBJPROP_ARROWCODE));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_DOWN);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowDownObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_ARROWCODE    : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowDownObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowDownObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowDownObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowDownObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

停止图形对象类: 

//+------------------------------------------------------------------+
//|                                             GStdArrowStopObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Stop graphical object                                            |
//+------------------------------------------------------------------+
class CGStdArrowStopObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowStopObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_STOP,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ARROWCODE,::ObjectGetInteger(chart_id,name,OBJPROP_ARROWCODE));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_STOP);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowStopObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_ARROWCODE    : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowStopObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowStopObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowStopObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowStopObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

复选标记图形对象类： 

//+------------------------------------------------------------------+
//|                                            GStdArrowCheckObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| "Check mark" graphical object                                    |
//+------------------------------------------------------------------+
class CGStdArrowCheckObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowCheckObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_CHECK,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ARROWCODE,::ObjectGetInteger(chart_id,name,OBJPROP_ARROWCODE));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_CHECK);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowCheckObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_ARROWCODE    : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowCheckObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowCheckObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowCheckObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowCheckObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

左侧价格标签图形对象类 

//+------------------------------------------------------------------+
//|                                        GStdArrowLeftPriceObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Left price label graphical object                                |
//+------------------------------------------------------------------+
class CGStdArrowLeftPriceObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowLeftPriceObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_LEFT_PRICE,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name) { }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_LEFT_PRICE);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowLeftPriceObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowLeftPriceObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowLeftPriceObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowLeftPriceObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowLeftPriceObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

右侧价格标签图形对象类 

//+------------------------------------------------------------------+
//|                                       GStdArrowRightPriceObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Right price label graphical object                               |
//+------------------------------------------------------------------+
class CGStdArrowRightPriceObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowRightPriceObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_RIGHT_PRICE,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name) { }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_RIGHT_PRICE);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowRightPriceObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowRightPriceObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowRightPriceObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowRightPriceObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowRightPriceObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

买入图形对象类： 

//+------------------------------------------------------------------+
//|                                              GStdArrowBuyObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Buy graphical object                                             |
//+------------------------------------------------------------------+
class CGStdArrowBuyObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowBuyObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_BUY,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name)
                          {
                           //--- Specify the object property
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,ANCHOR_TOP);
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_BUY);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowBuyObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_ANCHOR       : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowBuyObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowBuyObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowBuyObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowBuyObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

售出图形对象类： 

//+------------------------------------------------------------------+
//|                                             GStdArrowSellObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Sell graphical object                                            |
//+------------------------------------------------------------------+
class CGStdArrowSellObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowSellObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW_SELL,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name)
                          {
                           //--- Specify the object property
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,ANCHOR_BOTTOM);
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW_SELL);  }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowSellObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_ANCHOR       : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowSellObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowSellObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowSellObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowSellObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

箭头图形对象类： 

//+------------------------------------------------------------------+
//|                                                 GStdArrowObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Arrow graphical object                                           |
//+------------------------------------------------------------------+
class CGStdArrowObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdArrowObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_ARROW,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_ARROWS,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ARROWCODE,::ObjectGetInteger(chart_id,name,OBJPROP_ARROWCODE));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ARROW_ANCHOR Anchor(void)            const { return (ENUM_ARROW_ANCHOR)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_ARROW);    }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForArrowObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdArrowObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STYLE        :
      case GRAPH_OBJ_PROP_WIDTH        :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_ARROWCODE    : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdArrowObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdArrowObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdArrowObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdArrowObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+


文本图形对象类：

//+------------------------------------------------------------------+
//|                                                  GStdTextObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Text graphical object                                            |
//+------------------------------------------------------------------+
class CGStdTextObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdTextObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_TEXT,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_GRAPHICAL,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FONTSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_FONTSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANGLE,::ObjectGetDouble(chart_id,name,OBJPROP_ANGLE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FONT,::ObjectGetString(chart_id,name,OBJPROP_FONT));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ANCHOR_POINT Anchor(void)            const { return (ENUM_ANCHOR_POINT)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_TEXT);        }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForGraphicsObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdTextObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_FONTSIZE     : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdTextObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ANGLE        :
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdTextObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :
      case GRAPH_OBJ_PROP_FONT            :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdTextObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdTextObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

文本标签图形对象类： 

//+------------------------------------------------------------------+
//|                                                 GStdLabelObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Text label graphical object                                      |
//+------------------------------------------------------------------+
class CGStdLabelObj : public CGStdGraphObj
  {
private:
   void              CoordsToTimePrice(void)
                       {
                        int      subwnd;
                        datetime time;
                        double   price;
                        if(::ChartXYToTimePrice(m_chart_id,(int)this.XDistance(),(int)this.YDistance(),subwnd,time,price))
                          {
                           this.SetTime(time);
                           this.SetPrice(price);
                          }
                       }
public:
   //--- Constructor
                     CGStdLabelObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_LABEL,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_GRAPHICAL,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_XDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_YDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_XSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_YSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CORNER,::ObjectGetInteger(chart_id,name,OBJPROP_CORNER));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANGLE,::ObjectGetDouble(chart_id,name,OBJPROP_ANGLE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FONTSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_FONTSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FONT,::ObjectGetString(chart_id,name,OBJPROP_FONT));
                           this.CoordsToTimePrice();
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ANCHOR_POINT Anchor(void)            const { return (ENUM_ANCHOR_POINT)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the (ENUM_OBJECT) type description
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_LABEL);       }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForGraphicsObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdLabelObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_CORNER       :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_XDISTANCE    :
      case GRAPH_OBJ_PROP_YDISTANCE    :
      case GRAPH_OBJ_PROP_XSIZE        :
      case GRAPH_OBJ_PROP_YSIZE        :
      case GRAPH_OBJ_PROP_FONTSIZE     : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdLabelObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ANGLE        :
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdLabelObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :
      case GRAPH_OBJ_PROP_FONT            :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdLabelObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdLabelObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

按钮图形对象类： 

//+------------------------------------------------------------------+
//|                                                GStdButtonObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Button graphical object                                          |
//+------------------------------------------------------------------+
class CGStdButtonObj : public CGStdGraphObj
  {
private:
   void              CoordsToTimePrice(void)
                       {
                        int      subwnd;
                        datetime time;
                        double   price;
                        if(::ChartXYToTimePrice(m_chart_id,(int)this.XDistance(),(int)this.YDistance(),subwnd,time,price))
                          {
                           this.SetTime(time);
                           this.SetPrice(price);
                          }
                       }
public:
   //--- Constructor
                     CGStdButtonObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_BUTTON,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_GRAPHICAL,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_XDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_YDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_XSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_YSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CORNER,::ObjectGetInteger(chart_id,name,OBJPROP_CORNER));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_STATE,::ObjectGetInteger(chart_id,name,OBJPROP_STATE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_BGCOLOR,::ObjectGetInteger(chart_id,name,OBJPROP_BGCOLOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_BORDER_COLOR,::ObjectGetInteger(chart_id,name,OBJPROP_BORDER_COLOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FONTSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_FONTSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FONT,::ObjectGetString(chart_id,name,OBJPROP_FONT));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,ANCHOR_LEFT_UPPER);
                           this.CoordsToTimePrice();
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ANCHOR_POINT Anchor(void)            const { return (ENUM_ANCHOR_POINT)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_BUTTON);        }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForGraphicsObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdButtonObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_CORNER       :
      case GRAPH_OBJ_PROP_XDISTANCE    :
      case GRAPH_OBJ_PROP_YDISTANCE    :
      case GRAPH_OBJ_PROP_XSIZE        :
      case GRAPH_OBJ_PROP_YSIZE        :
      case GRAPH_OBJ_PROP_STATE        :
      case GRAPH_OBJ_PROP_BGCOLOR      :
      case GRAPH_OBJ_PROP_BORDER_COLOR :
      case GRAPH_OBJ_PROP_FONTSIZE     : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdButtonObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdButtonObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME            :
      case GRAPH_OBJ_PROP_TEXT            :
      case GRAPH_OBJ_PROP_TOOLTIP         :
      case GRAPH_OBJ_PROP_FONT            :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdButtonObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdButtonObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

注意：在类的构造函数中设置对象绑定方法属性。 针对某些图形对象的情况，严格绑定在左上角执行。 因此，在此我们不会从对象参数中读取该属性，而是立即设置正确的边角。 稍后我将注释掉类中的高亮显示 代码。

图表图形对象类： 

//+------------------------------------------------------------------+
//|                                                 GStdChartObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Chart graphical object                                           |
//+------------------------------------------------------------------+
class CGStdChartObj : public CGStdGraphObj
  {
private:
   void              CoordsToTimePrice(void)
                       {
                        int      subwnd;
                        datetime time;
                        double   price;
                        if(::ChartXYToTimePrice(m_chart_id,(int)this.XDistance(),(int)this.YDistance(),subwnd,time,price))
                          {
                           this.SetTime(time);
                           this.SetPrice(price);
                          }
                       }
public:
   //--- Constructor
                     CGStdChartObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_CHART,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_GRAPHICAL,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_XDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_YDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_XSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_YSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CORNER,::ObjectGetInteger(chart_id,name,OBJPROP_CORNER));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CHART_OBJ_CHART_ID,::ObjectGetInteger(chart_id,name,OBJPROP_CHART_ID));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CHART_OBJ_PERIOD,::ObjectGetInteger(chart_id,name,OBJPROP_PERIOD));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CHART_OBJ_DATE_SCALE,::ObjectGetInteger(chart_id,name,OBJPROP_DATE_SCALE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CHART_OBJ_PRICE_SCALE,::ObjectGetInteger(chart_id,name,OBJPROP_PRICE_SCALE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CHART_OBJ_CHART_SCALE,::ObjectGetInteger(chart_id,name,OBJPROP_CHART_SCALE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CHART_OBJ_SYMBOL,::ObjectGetString(chart_id,name,OBJPROP_SYMBOL));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,ANCHOR_LEFT_UPPER);
                           this.CoordsToTimePrice();
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ANCHOR_POINT Anchor(void)            const { return (ENUM_ANCHOR_POINT)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_CHART);        }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForGraphicsObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdChartObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID                    :
      case GRAPH_OBJ_PROP_TYPE                  :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE          : 
      case GRAPH_OBJ_PROP_GROUP                 : 
      case GRAPH_OBJ_PROP_BELONG                :
      case GRAPH_OBJ_PROP_CHART_ID              :
      case GRAPH_OBJ_PROP_WND_NUM               :
      case GRAPH_OBJ_PROP_NUM                   :
      case GRAPH_OBJ_PROP_CREATETIME            :
      case GRAPH_OBJ_PROP_TIMEFRAMES            :
      case GRAPH_OBJ_PROP_BACK                  :
      case GRAPH_OBJ_PROP_ZORDER                :
      case GRAPH_OBJ_PROP_HIDDEN                :
      case GRAPH_OBJ_PROP_SELECTED              :
      case GRAPH_OBJ_PROP_SELECTABLE            :
      case GRAPH_OBJ_PROP_TIME                  :
      case GRAPH_OBJ_PROP_COLOR                 :
      case GRAPH_OBJ_PROP_CORNER                :
      case GRAPH_OBJ_PROP_XDISTANCE             :
      case GRAPH_OBJ_PROP_YDISTANCE             :
      case GRAPH_OBJ_PROP_XSIZE                 :
      case GRAPH_OBJ_PROP_YSIZE                 :
      case GRAPH_OBJ_PROP_CHART_OBJ_CHART_ID    :
      case GRAPH_OBJ_PROP_CHART_OBJ_DATE_SCALE  :
      case GRAPH_OBJ_PROP_CHART_OBJ_PRICE_SCALE :
      case GRAPH_OBJ_PROP_CHART_OBJ_CHART_SCALE :
      case GRAPH_OBJ_PROP_CHART_OBJ_PERIOD      : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdChartObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdChartObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_CHART_OBJ_SYMBOL   :
      case GRAPH_OBJ_PROP_NAME               :
      case GRAPH_OBJ_PROP_TEXT               :
      case GRAPH_OBJ_PROP_TOOLTIP            :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdChartObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdChartObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

位图图形对象类： 

//+------------------------------------------------------------------+
//|                                                GStdBitmapObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Bitmap graphical object                                          |
//+------------------------------------------------------------------+
class CGStdBitmapObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdBitmapObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_BITMAP,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_GRAPHICAL,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_XSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_YSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XOFFSET,::ObjectGetInteger(chart_id,name,OBJPROP_XOFFSET));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YOFFSET,::ObjectGetInteger(chart_id,name,OBJPROP_YOFFSET));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ANCHOR_POINT Anchor(void)            const { return (ENUM_ANCHOR_POINT)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_BITMAP);        }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForGraphicsObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdBitmapObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_XSIZE        :
      case GRAPH_OBJ_PROP_YSIZE        :
      case GRAPH_OBJ_PROP_XOFFSET      :
      case GRAPH_OBJ_PROP_YOFFSET      : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdBitmapObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdBitmapObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME      :
      case GRAPH_OBJ_PROP_TEXT      :
      case GRAPH_OBJ_PROP_TOOLTIP   :
      case GRAPH_OBJ_PROP_BMPFILE   :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdBitmapObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdBitmapObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

位图标签图形对象类： 

//+------------------------------------------------------------------+
//|                                                GStdBitmapObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Bitmap label graphical object                                    |
//+------------------------------------------------------------------+
class CGStdBitmapLabelObj : public CGStdGraphObj
  {
private:
   void              CoordsToTimePrice(void)
                       {
                        int      subwnd;
                        datetime time;
                        double   price;
                        if(::ChartXYToTimePrice(m_chart_id,(int)this.XDistance(),(int)this.YDistance(),subwnd,time,price))
                          {
                           this.SetTime(time);
                           this.SetPrice(price);
                          }
                       }
public:
   //--- Constructor
                     CGStdBitmapLabelObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_BITMAP_LABEL,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_GRAPHICAL,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_XDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_YDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_XSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_YSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XOFFSET,::ObjectGetInteger(chart_id,name,OBJPROP_XOFFSET));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YOFFSET,::ObjectGetInteger(chart_id,name,OBJPROP_YOFFSET));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CORNER,::ObjectGetInteger(chart_id,name,OBJPROP_CORNER));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,::ObjectGetInteger(chart_id,name,OBJPROP_ANCHOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_STATE,::ObjectGetInteger(chart_id,name,OBJPROP_STATE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_BMPFILE,::ObjectGetString(chart_id,name,OBJPROP_BMPFILE));
                           this.CoordsToTimePrice();
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ANCHOR_POINT Anchor(void)            const { return (ENUM_ANCHOR_POINT)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_BITMAP_LABEL);        }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForGraphicsObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdBitmapLabelObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_STATE        :
      case GRAPH_OBJ_PROP_CORNER       :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_XDISTANCE    :
      case GRAPH_OBJ_PROP_YDISTANCE    :
      case GRAPH_OBJ_PROP_XSIZE        :
      case GRAPH_OBJ_PROP_YSIZE        :
      case GRAPH_OBJ_PROP_XOFFSET      :
      case GRAPH_OBJ_PROP_YOFFSET      : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdBitmapLabelObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdBitmapLabelObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME      :
      case GRAPH_OBJ_PROP_TEXT      :
      case GRAPH_OBJ_PROP_TOOLTIP   :
      case GRAPH_OBJ_PROP_BMPFILE   :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdBitmapLabelObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdBitmapLabelObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

编辑框图形对象类：

//+------------------------------------------------------------------+
//|                                                  GStdEditObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Edit field graphical object                                      |
//+------------------------------------------------------------------+
class CGStdEditObj : public CGStdGraphObj
  {
private:
   void              CoordsToTimePrice(void)
                       {
                        int      subwnd;
                        datetime time;
                        double   price;
                        if(::ChartXYToTimePrice(m_chart_id,(int)this.XDistance(),(int)this.YDistance(),subwnd,time,price))
                          {
                           this.SetTime(time);
                           this.SetPrice(price);
                          }
                       }
public:
   //--- Constructor
                     CGStdEditObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_EDIT,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_GRAPHICAL,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_XDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_YDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_XSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_YSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CORNER,::ObjectGetInteger(chart_id,name,OBJPROP_CORNER));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_READONLY,::ObjectGetInteger(chart_id,name,OBJPROP_READONLY));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ALIGN,::ObjectGetInteger(chart_id,name,OBJPROP_ALIGN));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_BGCOLOR,::ObjectGetInteger(chart_id,name,OBJPROP_BGCOLOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_BORDER_COLOR,::ObjectGetInteger(chart_id,name,OBJPROP_BORDER_COLOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FONTSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_FONTSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_FONT,::ObjectGetString(chart_id,name,OBJPROP_FONT));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,ANCHOR_LEFT_UPPER);
                           this.CoordsToTimePrice();
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ANCHOR_POINT Anchor(void)            const { return (ENUM_ANCHOR_POINT)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_EDIT);        }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForGraphicsObjDescription(this.Anchor()); }

  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdEditObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        :
      case GRAPH_OBJ_PROP_READONLY     :
      case GRAPH_OBJ_PROP_CORNER       :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_XDISTANCE    :
      case GRAPH_OBJ_PROP_YDISTANCE    :
      case GRAPH_OBJ_PROP_XSIZE        :
      case GRAPH_OBJ_PROP_YSIZE        :
      case GRAPH_OBJ_PROP_ALIGN        :
      case GRAPH_OBJ_PROP_BORDER_COLOR :
      case GRAPH_OBJ_PROP_FONTSIZE     :
      case GRAPH_OBJ_PROP_BGCOLOR      : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdEditObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdEditObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME      :
      case GRAPH_OBJ_PROP_TEXT      :
      case GRAPH_OBJ_PROP_TOOLTIP   :
      case GRAPH_OBJ_PROP_FONT      :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdEditObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdEditObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

日历事件图形对象类：

//+------------------------------------------------------------------+
//|                                                 GStdEventObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Calendar event graphical object                                  |
//+------------------------------------------------------------------+
class CGStdEventObj : public CGStdGraphObj
  {
private:

public:
   //--- Constructor
                     CGStdEventObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_EVENT,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_GRAPHICAL,chart_id,name) { }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the graphical object price (1) type (ENUM_OBJECT) and (2) price coordinate
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_EVENT);        }
   virtual string    PriceDescription(void)  const
                       { 
                        return ::DoubleToString(this.GetProperty(GRAPH_OBJ_PROP_PRICE),this.m_digits)+" "+
                                 CMessage::Text(MSG_GRAPH_OBJ_TEXT_CLICK_COORD);
                       }
  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdEventObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_COLOR        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdEventObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdEventObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME      :
      case GRAPH_OBJ_PROP_TEXT      :
      case GRAPH_OBJ_PROP_TOOLTIP   :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdEventObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdEventObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

矩形标签图形对象类：

//+------------------------------------------------------------------+
//|                                        GStdRectangleLabelObj.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "GStdGraphObj.mqh"
//+------------------------------------------------------------------+
//| Rectangular label graphical object                               |
//+------------------------------------------------------------------+
class CGStdRectangleLabelObj : public CGStdGraphObj
  {
private:
   void              CoordsToTimePrice(void)
                       {
                        int      subwnd;
                        datetime time;
                        double   price;
                        if(::ChartXYToTimePrice(m_chart_id,(int)this.XDistance(),(int)this.YDistance(),subwnd,time,price))
                          {
                           this.SetTime(time);
                           this.SetPrice(price);
                          }
                       }
public:
   //--- Constructor
                     CGStdRectangleLabelObj(const long chart_id,const string name) : 
                        CGStdGraphObj(OBJECT_DE_TYPE_GSTD_RECTANGLE_LABEL,GRAPH_OBJ_BELONG_NO_PROGRAM,GRAPH_OBJ_GROUP_GRAPHICAL,chart_id,name)
                          {
                           //--- Get and save the object properties
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_XDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YDISTANCE,::ObjectGetInteger(chart_id,name,OBJPROP_YDISTANCE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_XSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YSIZE,::ObjectGetInteger(chart_id,name,OBJPROP_YSIZE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_XOFFSET,::ObjectGetInteger(chart_id,name,OBJPROP_XOFFSET));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_YOFFSET,::ObjectGetInteger(chart_id,name,OBJPROP_YOFFSET));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_CORNER,::ObjectGetInteger(chart_id,name,OBJPROP_CORNER));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_BORDER_TYPE,::ObjectGetInteger(chart_id,name,OBJPROP_BORDER_TYPE));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_BORDER_COLOR,::ObjectGetInteger(chart_id,name,OBJPROP_BORDER_COLOR));
                           CGStdGraphObj::SetProperty(GRAPH_OBJ_PROP_ANCHOR,ANCHOR_LEFT_UPPER);
                           this.CoordsToTimePrice();
                          }
   //--- Supported object properties (1) real, (2) integer
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property);
   virtual bool      SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property);
//--- Return the graphical object anchor point position
   ENUM_ANCHOR_POINT Anchor(void)            const { return (ENUM_ANCHOR_POINT)this.GetProperty(GRAPH_OBJ_PROP_ANCHOR); }
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);
//--- Return the object short name
   virtual string    Header(const bool symbol=false);
//--- Return the description of the (ENUM_OBJECT) graphical object type
   virtual string    TypeDescription(void)   const { return StdGraphObjectTypeDescription(OBJ_RECTANGLE_LABEL);         }
//--- Return the description of the graphical object anchor point position
   virtual string    AnchorDescription(void) const { return AnchorForGraphicsObjDescription(this.Anchor());             }
  };
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| integer property, otherwise return 'false'                       |
//+------------------------------------------------------------------+
bool CGStdRectangleLabelObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_ID           :
      case GRAPH_OBJ_PROP_TYPE         :
      case GRAPH_OBJ_PROP_ELEMENT_TYPE : 
      case GRAPH_OBJ_PROP_GROUP        : 
      case GRAPH_OBJ_PROP_BELONG       :
      case GRAPH_OBJ_PROP_CHART_ID     :
      case GRAPH_OBJ_PROP_WND_NUM      :
      case GRAPH_OBJ_PROP_NUM          :
      case GRAPH_OBJ_PROP_CREATETIME   :
      case GRAPH_OBJ_PROP_TIMEFRAMES   :
      case GRAPH_OBJ_PROP_BACK         :
      case GRAPH_OBJ_PROP_ZORDER       :
      case GRAPH_OBJ_PROP_HIDDEN       :
      case GRAPH_OBJ_PROP_SELECTED     :
      case GRAPH_OBJ_PROP_SELECTABLE   :
      case GRAPH_OBJ_PROP_TIME         :
      case GRAPH_OBJ_PROP_ANCHOR       :
      case GRAPH_OBJ_PROP_CORNER       :
      case GRAPH_OBJ_PROP_XDISTANCE    :
      case GRAPH_OBJ_PROP_YDISTANCE    :
      case GRAPH_OBJ_PROP_XOFFSET      :
      case GRAPH_OBJ_PROP_YOFFSET      :
      case GRAPH_OBJ_PROP_XSIZE        :
      case GRAPH_OBJ_PROP_YSIZE        :
      case GRAPH_OBJ_PROP_BORDER_COLOR :
      case GRAPH_OBJ_PROP_BORDER_TYPE  : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| real property, otherwise return 'false'                          |
//+------------------------------------------------------------------+
bool CGStdRectangleLabelObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_PRICE        : return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return 'true' if an object supports a passed                     |
//| string property, otherwise return 'false'                        |
//+------------------------------------------------------------------+
bool CGStdRectangleLabelObj::SupportProperty(ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   switch((int)property)
     {
      //--- Supported properties
      case GRAPH_OBJ_PROP_NAME      :
      case GRAPH_OBJ_PROP_TEXT      :
      case GRAPH_OBJ_PROP_TOOLTIP   :  return true;
      //--- Other properties are not supported
      //--- Default is 'false'
      default: break;
     }
   return false;
  }
//+------------------------------------------------------------------+
//| Return the object short name                                     |
//+------------------------------------------------------------------+
string CGStdRectangleLabelObj::Header(const bool symbol=false)
  {
   return this.TypeDescription();
  }
//+------------------------------------------------------------------+
//| Display a short description of the object in the journal         |
//+------------------------------------------------------------------+
void CGStdRectangleLabelObj::PrintShort(const bool dash=false,const bool symbol=false)
  {
   ::Print
     (
      this.Header(symbol)," \"",CGBaseObj::Name(),"\": ID ",(string)this.GetProperty(GRAPH_OBJ_PROP_ID),
      " ",::TimeToString(CGBaseObj::TimeCreate(),TIME_DATE|TIME_MINUTES|TIME_SECONDS)
     );
  }
//+------------------------------------------------------------------+

如果我们仔细观察类的结构，我们会发现它们都雷同，不过各有其独特的特征。 所有对象属性都被读取并保存在构造函数中的类变量中。 还有一些对象没有可更改的价格或时间属性，但终端仍旧为它们设置了这些属性（例如，在“矩形标签”的情况下，对象设置为以像素为单位的图表坐标，但其“价格/时间”参数的特征值等于点击鼠标安置对象时的图表坐标值）。 此类属性应调用 CoordsToTimePrice() 私密方法来接收数值。

现在我们已拥有抽象图形对象的衍生后代对象的所有类。 现在是时候来实现依据指定参数在列表中搜索所需图形对象的能力了。
所有这些对象都将被存储在图形对象集合类的列表之中。 搜索和排序由 \MQL5\Include\DoEasy\Services\Select.mqh 中的 CSelect 类执行。 打开文件，并对其进行必要的改进。

首先，包含抽象图形对象的类文件：

//+------------------------------------------------------------------+
//|                                                       Select.mqh |
//|                        Copyright 2020, MetaQuotes Software Corp. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2020, MetaQuotes Software Corp."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include <Arrays\ArrayObj.mqh>
#include "..\Objects\Orders\Order.mqh"
#include "..\Objects\Events\Event.mqh"
#include "..\Objects\Accounts\Account.mqh"
#include "..\Objects\Symbols\Symbol.mqh"
#include "..\Objects\PendRequest\PendRequest.mqh"
#include "..\Objects\Series\SeriesDE.mqh"
#include "..\Objects\Indicators\Buffer.mqh"
#include "..\Objects\Indicators\IndicatorDE.mqh"
#include "..\Objects\Indicators\DataInd.mqh"
#include "..\Objects\Ticks\DataTick.mqh"
#include "..\Objects\Book\MarketBookOrd.mqh"
#include "..\Objects\MQLSignalBase\MQLSignal.mqh"
#include "..\Objects\Chart\ChartObj.mqh"
#include "..\Objects\Graph\GCnvElement.mqh"
#include "..\Objects\Graph\Standard\GStdGraphObj.mqh"
//+------------------------------------------------------------------+

在类主体的最后，声明依据标准图形对象的属性进行搜索和排序的方法：

//+------------------------------------------------------------------+
//| Methods of working with standard graphical object data           |
//+------------------------------------------------------------------+
   //--- Return the list of objects with one of (1) integer, (2) real and (3) string properties meeting a specified criterion
   static CArrayObj *ByGraphicStdObjectProperty(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_INTEGER property,long value,ENUM_COMPARER_TYPE mode);
   static CArrayObj *ByGraphicStdObjectProperty(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_DOUBLE property,double value,ENUM_COMPARER_TYPE mode);
   static CArrayObj *ByGraphicStdObjectProperty(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_STRING property,string value,ENUM_COMPARER_TYPE mode);
   //--- Return the graphical object index in the list with the maximum value of the (1) integer, (2) real and (3) string properties
   static int        FindGraphicStdObjectMax(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_INTEGER property);
   static int        FindGraphicStdObjectMax(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   static int        FindGraphicStdObjectMax(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_STRING property);
   //--- Return the graphical object index in the list with the minimum value of the (1) integer, (2) real and (3) string properties
   static int        FindGraphicStdObjectMin(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_INTEGER property);
   static int        FindGraphicStdObjectMin(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_DOUBLE property);
   static int        FindGraphicStdObjectMin(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_STRING property);
//---
  };
//+------------------------------------------------------------------+

我们在类主体之外编写它们的实现：

//+---------------------------------------------------------------------------+
//| The methods of working with data of the graphical elements on the canvas  |
//+---------------------------------------------------------------------------+
//+------------------------------------------------------------------+
//| Return the list of objects with one integer                      |
//| property meeting the specified criterion                         |
//+------------------------------------------------------------------+
CArrayObj *CSelect::ByGraphicStdObjectProperty(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_INTEGER property,long value,ENUM_COMPARER_TYPE mode)
  {
   if(list_source==NULL) return NULL;
   CArrayObj *list=new CArrayObj();
   if(list==NULL) return NULL;
   list.FreeMode(false);
   ListStorage.Add(list);
   int total=list_source.Total();
   for(int i=0; i<total; i++)
     {
      CGStdGraphObj *obj=list_source.At(i);
      if(!obj.SupportProperty(property)) continue;
      long obj_prop=obj.GetProperty(property);
      if(CompareValues(obj_prop,value,mode)) list.Add(obj);
     }
   return list;
  }
//+------------------------------------------------------------------+
//| Return the list of objects with one real                         |
//| property meeting the specified criterion                         |
//+------------------------------------------------------------------+
CArrayObj *CSelect::ByGraphicStdObjectProperty(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_DOUBLE property,double value,ENUM_COMPARER_TYPE mode)
  {
   if(list_source==NULL) return NULL;
   CArrayObj *list=new CArrayObj();
   if(list==NULL) return NULL;
   list.FreeMode(false);
   ListStorage.Add(list);
   for(int i=0; i<list_source.Total(); i++)
     {
      CGStdGraphObj *obj=list_source.At(i);
      if(!obj.SupportProperty(property)) continue;
      double obj_prop=obj.GetProperty(property);
      if(CompareValues(obj_prop,value,mode)) list.Add(obj);
     }
   return list;
  }
//+------------------------------------------------------------------+
//| Return the list of objects with one string                       |
//| property meeting the specified criterion                         |
//+------------------------------------------------------------------+
CArrayObj *CSelect::ByGraphicStdObjectProperty(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_STRING property,string value,ENUM_COMPARER_TYPE mode)
  {
   if(list_source==NULL) return NULL;
   CArrayObj *list=new CArrayObj();
   if(list==NULL) return NULL;
   list.FreeMode(false);
   ListStorage.Add(list);
   for(int i=0; i<list_source.Total(); i++)
     {
      CGStdGraphObj *obj=list_source.At(i);
      if(!obj.SupportProperty(property)) continue;
      string obj_prop=obj.GetProperty(property);
      if(CompareValues(obj_prop,value,mode)) list.Add(obj);
     }
   return list;
  }
//+------------------------------------------------------------------+
//| Return the object index in the list                              |
//| with the maximum integer property value                          |
//+------------------------------------------------------------------+
int CSelect::FindGraphicStdObjectMax(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   if(list_source==NULL) return WRONG_VALUE;
   int index=0;
   CGStdGraphObj *max_obj=NULL;
   int total=list_source.Total();
   if(total==0) return WRONG_VALUE;
   for(int i=1; i<total; i++)
     {
      CGStdGraphObj *obj=list_source.At(i);
      long obj1_prop=obj.GetProperty(property);
      max_obj=list_source.At(index);
      long obj2_prop=max_obj.GetProperty(property);
      if(CompareValues(obj1_prop,obj2_prop,MORE)) index=i;
     }
   return index;
  }
//+------------------------------------------------------------------+
//| Return the object index in the list                              |
//| with the maximum real property value                             |
//+------------------------------------------------------------------+
int CSelect::FindGraphicStdObjectMax(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   if(list_source==NULL) return WRONG_VALUE;
   int index=0;
   CGStdGraphObj *max_obj=NULL;
   int total=list_source.Total();
   if(total==0) return WRONG_VALUE;
   for(int i=1; i<total; i++)
     {
      CGStdGraphObj *obj=list_source.At(i);
      double obj1_prop=obj.GetProperty(property);
      max_obj=list_source.At(index);
      double obj2_prop=max_obj.GetProperty(property);
      if(CompareValues(obj1_prop,obj2_prop,MORE)) index=i;
     }
   return index;
  }
//+------------------------------------------------------------------+
//| Return the object index in the list                              |
//| with the maximum string property value                           |
//+------------------------------------------------------------------+
int CSelect::FindGraphicStdObjectMax(CArrayObj *list_source,ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   if(list_source==NULL) return WRONG_VALUE;
   int index=0;
   CGStdGraphObj *max_obj=NULL;
   int total=list_source.Total();
   if(total==0) return WRONG_VALUE;
   for(int i=1; i<total; i++)
     {
      CGStdGraphObj *obj=list_source.At(i);
      string obj1_prop=obj.GetProperty(property);
      max_obj=list_source.At(index);
      string obj2_prop=max_obj.GetProperty(property);
      if(CompareValues(obj1_prop,obj2_prop,MORE)) index=i;
     }
   return index;
  }
//+------------------------------------------------------------------+
//| Return the object index in the list                              |
//| with the minimum integer property value                          |
//+------------------------------------------------------------------+
int CSelect::FindGraphicStdObjectMin(CArrayObj* list_source,ENUM_GRAPH_OBJ_PROP_INTEGER property)
  {
   int index=0;
   CGStdGraphObj *min_obj=NULL;
   int total=list_source.Total();
   if(total==0) return WRONG_VALUE;
   for(int i=1; i<total; i++)
     {
      CGStdGraphObj *obj=list_source.At(i);
      long obj1_prop=obj.GetProperty(property);
      min_obj=list_source.At(index);
      long obj2_prop=min_obj.GetProperty(property);
      if(CompareValues(obj1_prop,obj2_prop,LESS)) index=i;
     }
   return index;
  }
//+------------------------------------------------------------------+
//| Return the object index in the list                              |
//| with the minimum real property value                             |
//+------------------------------------------------------------------+
int CSelect::FindGraphicStdObjectMin(CArrayObj* list_source,ENUM_GRAPH_OBJ_PROP_DOUBLE property)
  {
   int index=0;
   CGStdGraphObj *min_obj=NULL;
   int total=list_source.Total();
   if(total== 0) return WRONG_VALUE;
   for(int i=1; i<total; i++)
     {
      CGStdGraphObj *obj=list_source.At(i);
      double obj1_prop=obj.GetProperty(property);
      min_obj=list_source.At(index);
      double obj2_prop=min_obj.GetProperty(property);
      if(CompareValues(obj1_prop,obj2_prop,LESS)) index=i;
     }
   return index;
  }
//+------------------------------------------------------------------+
//| Return the object index in the list                              |
//| with the minimum string property value                           |
//+------------------------------------------------------------------+
int CSelect::FindGraphicStdObjectMin(CArrayObj* list_source,ENUM_GRAPH_OBJ_PROP_STRING property)
  {
   int index=0;
   CGStdGraphObj *min_obj=NULL;
   int total=list_source.Total();
   if(total==0) return WRONG_VALUE;
   for(int i=1; i<total; i++)
     {
      CGStdGraphObj *obj=list_source.At(i);
      string obj1_prop=obj.GetProperty(property);
      min_obj=list_source.At(index);
      string obj2_prop=min_obj.GetProperty(property);
      if(CompareValues(obj1_prop,obj2_prop,LESS)) index=i;
     }
   return index;
  }
//+------------------------------------------------------------------+

我在第三篇文章中曾研究过这些方法的逻辑和目的。 在此纠缠那些没有意义。


将新创建的图形对象添加到集合当中

定义图表对象背后的逻辑如下：为每个打开的图表创建管理图表图形对象的对象。 这些对象跟踪图表上对象数量的变化。 随着对象数量的增加，我们可以看到添加的对象，为它们创建图形对象，并将它们放置到新添加的对象列表中。 故此，每个打开的图表都拥有自己的新添加图形对象列表。

接下来，在图形对象的集合类中，接收所有已创建图形管理对象的列表，并查看每个新添加的对象列表。 如果图表含有新的图形对象，则把描述它们的对象放置在列表当中。 从该列表中，我们接收并检索指向每个对象的指针。 如果对象检索成功，则将其从图形对象管理类的新增对象列表中删除，并立即放入集合列表之中。 如果放置不成功，则对象将被移除，并显示出错消息。 因此，我们消除了内存泄漏隐患，因为从列表中删除对象，即可手工管理，亦或由终端子系统放置到另一个受管理的列表之中。 这就是我将一个对象放入集合列表，且当放置不成功时将其删除的方法。

该逻辑意味着作为图形对象描述而创建的对象丢失，而函数库既无法通知我们将图形对象添加到图表中，也不能对其进行管理。 但这比将对象遗留在内存中要好。
我可能会尝试进一步改进保管此类对象的逻辑。 但是为此，我首先需要找到将已删除对象放置到集合列表中失败的原因。 最可能的罪魁祸首是内存泄漏。 在这种情况下，任何保存对象的尝试都将失败。 因此，我现在只是简单地删除这样的对象。

首先，图形对象集合类的文件 \MQL5\Include\DoEasy\Collections\GraphElementsCollection.mqh 接收本文中创建的所有标准图形对象的剩余类：

//+------------------------------------------------------------------+
//|                                      GraphElementsCollection.mqh |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                             https://mql5.com/en/users/artmedia70 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Ltd."
#property link      "https://mql5.com/en/users/artmedia70"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Include files                                                    |
//+------------------------------------------------------------------+
#include "ListObj.mqh"
#include "..\Services\Select.mqh"
#include "..\Objects\Graph\Form.mqh"
#include "..\Objects\Graph\Standard\GStdVLineObj.mqh"
#include "..\Objects\Graph\Standard\GStdHLineObj.mqh"
#include "..\Objects\Graph\Standard\GStdTrendObj.mqh"
#include "..\Objects\Graph\Standard\GStdTrendByAngleObj.mqh"
#include "..\Objects\Graph\Standard\GStdCiclesObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowedLineObj.mqh"
#include "..\Objects\Graph\Standard\GStdChannelObj.mqh"
#include "..\Objects\Graph\Standard\GStdStdDevChannelObj.mqh"
#include "..\Objects\Graph\Standard\GStdRegressionObj.mqh"
#include "..\Objects\Graph\Standard\GStdPitchforkObj.mqh"
#include "..\Objects\Graph\Standard\GStdGannLineObj.mqh"
#include "..\Objects\Graph\Standard\GStdGannFanObj.mqh"
#include "..\Objects\Graph\Standard\GStdGannGridObj.mqh"
#include "..\Objects\Graph\Standard\GStdFiboObj.mqh"
#include "..\Objects\Graph\Standard\GStdFiboTimesObj.mqh"
#include "..\Objects\Graph\Standard\GStdFiboFanObj.mqh"
#include "..\Objects\Graph\Standard\GStdFiboArcObj.mqh"
#include "..\Objects\Graph\Standard\GStdFiboChannelObj.mqh"
#include "..\Objects\Graph\Standard\GStdExpansionObj.mqh"
#include "..\Objects\Graph\Standard\GStdElliotWave5Obj.mqh"
#include "..\Objects\Graph\Standard\GStdElliotWave3Obj.mqh"
#include "..\Objects\Graph\Standard\GStdRectangleObj.mqh"
#include "..\Objects\Graph\Standard\GStdTriangleObj.mqh"
#include "..\Objects\Graph\Standard\GStdEllipseObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowThumbUpObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowThumbDownObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowUpObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowDownObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowStopObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowCheckObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowLeftPriceObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowRightPriceObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowBuyObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowSellObj.mqh"
#include "..\Objects\Graph\Standard\GStdArrowObj.mqh"
#include "..\Objects\Graph\Standard\GStdTextObj.mqh"
#include "..\Objects\Graph\Standard\GStdLabelObj.mqh"
#include "..\Objects\Graph\Standard\GStdButtonObj.mqh"
#include "..\Objects\Graph\Standard\GStdChartObj.mqh"
#include "..\Objects\Graph\Standard\GStdBitmapObj.mqh"
#include "..\Objects\Graph\Standard\GStdBitmapLabelObj.mqh"
#include "..\Objects\Graph\Standard\GStdEditObj.mqh"
#include "..\Objects\Graph\Standard\GStdEventObj.mqh"
#include "..\Objects\Graph\Standard\GStdRectangleLabelObj.mqh"
//+------------------------------------------------------------------+
//| Chart object management class                                    |
//+------------------------------------------------------------------+

在图形对象管理类的私密部分，声明新添加的图形对象列表，声明返回最后添加到图表中的图形对象名称的方法。
在类的公开部分，编写返回新添加对象列表的方法。 在类构造函数中，清除列表，并为其设置排序列表标志：

//+------------------------------------------------------------------+
//| Chart object management class                                    |
//+------------------------------------------------------------------+
class CChartObjectsControl : public CObject
  {
private:
   CArrayObj         m_list_new_graph_obj;      // List of added graphical objects
   ENUM_TIMEFRAMES   m_chart_timeframe;         // Chart timeframe
   long              m_chart_id;                // Chart ID
   string            m_chart_symbol;            // Chart symbol
   bool              m_is_graph_obj_event;      // Event flag in the list of graphical objects
   int               m_total_objects;           // Number of graphical objects
   int               m_last_objects;            // Number of graphical objects during the previous check
   int               m_delta_graph_obj;         // Difference in the number of graphical objects compared to the previous check
   
//--- Return the name of the last graphical object added to the chart
   string            LastAddedGraphObjName(void);
   
public:
//--- Return the variable values
   ENUM_TIMEFRAMES   Timeframe(void)                           const { return this.m_chart_timeframe;    }
   long              ChartID(void)                             const { return this.m_chart_id;           }
   string            Symbol(void)                              const { return this.m_chart_symbol;       }
   bool              IsEvent(void)                             const { return this.m_is_graph_obj_event; }
   int               TotalObjects(void)                        const { return this.m_total_objects;      }
   int               Delta(void)                               const { return this.m_delta_graph_obj;    }
//--- Create a new standard graphical object
   CGStdGraphObj    *CreateNewGraphObj(const ENUM_OBJECT obj_type,const long chart_id, const string name);
//--- Return the list of newly added objects
   CArrayObj        *GetListNewAddedObj(void)                        { return &this.m_list_new_graph_obj;}
//--- Check the chart objects
   void              Refresh(void);
//--- Constructors
                     CChartObjectsControl(void)
                       { 
                        this.m_list_new_graph_obj.Clear();
                        this.m_list_new_graph_obj.Sort();
                        this.m_chart_id=::ChartID();
                        this.m_chart_timeframe=(ENUM_TIMEFRAMES)::ChartPeriod(this.m_chart_id);
                        this.m_chart_symbol=::ChartSymbol(this.m_chart_id);
                        this.m_is_graph_obj_event=false;
                        this.m_total_objects=0;
                        this.m_last_objects=0;
                        this.m_delta_graph_obj=0;
                       }
                     CChartObjectsControl(const long chart_id)
                       { 
                        this.m_list_new_graph_obj.Clear();
                        this.m_list_new_graph_obj.Sort();
                        this.m_chart_id=chart_id;
                        this.m_chart_timeframe=(ENUM_TIMEFRAMES)::ChartPeriod(this.m_chart_id);
                        this.m_chart_symbol=::ChartSymbol(this.m_chart_id);
                        this.m_is_graph_obj_event=false;
                        this.m_total_objects=0;
                        this.m_last_objects=0;
                        this.m_delta_graph_obj=0;
                       }
                     
//--- Compare CChartObjectsControl objects by a chart ID (for sorting the list by an object property)
   virtual int       Compare(const CObject *node,const int mode=0) const
                       {
                        const CChartObjectsControl *obj_compared=node;
                        return(this.ChartID()>obj_compared.ChartID() ? 1 : this.ChartID()<obj_compared.ChartID() ? -1 : 0);
                       }
  };
//+------------------------------------------------------------------+

以前，在图形对象管理类的 Refresh() 方法中，我们通过以下方式查找最后添加到图表中的图形对象：

   //--- If an object is added to the chart
   if(this.m_delta_graph_obj>0)
     {
      int index=0;
      datetime time=0;
      string name="";
      //--- find the last added graphical object and write its index
      for(int j=0;j<this.m_total_objects;j++)
        {
         name=::ObjectName(this.ChartID(),j);
         datetime tm=(datetime)::ObjectGetInteger(this.ChartID(),name,OBJPROP_CREATETIME);
         if(tm>time)
           {
            time=tm;
            index=j;
           }
        }
      
      //--- Select the last graphical object by its index
      name=::ObjectName(this.ChartID(),index);
      if(name!="")
        {

现在整个代码都设置在一个单独的方法中。 所以代码模块目前看起来如下：

   //--- If an object is added to the chart
   if(this.m_delta_graph_obj>0)
     {
      //--- find the last added graphical object, select it and write its name
      string name=this.LastAddedGraphObjName();
      if(name!="")
        {

如果接收到添加到图表的最后一个对象的名称，我们先创建一个对象来描述它，为其设置属性，将其发送到日志，并立即删除该对象：

      //--- Select the last graphical object by its index
      name=::ObjectName(this.ChartID(),index);
      if(name!="")
        {
         //--- Create the object of the graphical object class corresponding to the added graphical object type
         ENUM_OBJECT type=(ENUM_OBJECT)::ObjectGetInteger(this.ChartID(),name,OBJPROP_TYPE);
         ENUM_OBJECT_DE_TYPE obj_type=ENUM_OBJECT_DE_TYPE(type+OBJECT_DE_TYPE_GSTD_OBJ+1);
         CGStdGraphObj *obj=this.CreateNewGraphObj(type,this.ChartID(),name);
         if(obj!=NULL)
           {
            //--- Set the object index and affiliation, display its short description and remove the created object
            obj.SetObjectID(this.m_total_objects);
            obj.SetBelong(GRAPH_OBJ_BELONG_NO_PROGRAM); 
            obj.Print();
            delete obj;
           }
        }

现在我们将将对象保存在新添加的对象列表当中：

//+------------------------------------------------------------------+
//| CChartObjectsControl Check objects on a chart                    |
//+------------------------------------------------------------------+
void CChartObjectsControl::Refresh(void)
  {
//--- Graphical objects on the chart
   this.m_total_objects=::ObjectsTotal(this.ChartID());
   this.m_delta_graph_obj=this.m_total_objects-this.m_last_objects;
   
//--- If the number of objects has changed
   if(this.m_delta_graph_obj!=0)
     {
      //--- Create the string and display it in the journal with the chart ID, its symbol and timeframe
      string txt=", "+(m_delta_graph_obj>0 ? "Added: " : "Deleted: ")+(string)fabs(m_delta_graph_obj)+" obj";
      Print(DFUN,"ChartID=",this.ChartID(),", ",this.Symbol(),", ",TimeframeDescription(this.Timeframe()),txt);
     }
   //--- If an object is added to the chart
   if(this.m_delta_graph_obj>0)
     {
      //--- find the last added graphical object, select it and write its name
      string name=this.LastAddedGraphObjName();
      if(name!="")
        {
         //--- Create the object of the graphical object class corresponding to the added graphical object type
         ENUM_OBJECT type=(ENUM_OBJECT)::ObjectGetInteger(this.ChartID(),name,OBJPROP_TYPE);
         ENUM_OBJECT_DE_TYPE obj_type=ENUM_OBJECT_DE_TYPE(type+OBJECT_DE_TYPE_GSTD_OBJ+1);
         CGStdGraphObj *obj=this.CreateNewGraphObj(type,this.ChartID(),name);
         if(obj==NULL)
            return;
         //--- Set the object affiliation and add the created object to the list of new objects
         obj.SetBelong(GRAPH_OBJ_BELONG_NO_PROGRAM); 
         if(this.m_list_new_graph_obj.Search(obj)==WRONG_VALUE)
           {
            this.m_list_new_graph_obj.Add(obj);
           }
        }
     }
//--- save the index of the last added graphical object and the difference with the last check
   this.m_last_objects=this.m_total_objects;
   this.m_is_graph_obj_event=(bool)this.m_delta_graph_obj;
  }
//+------------------------------------------------------------------+

现在，在已打开图表上新添加每个对象之后，图形对象管理类的每个对象都会把所创建图形对象列表添加到图表中。 接下来，在图形对象集合类中，我们就能够查看图形对象管理的每个对象，并从其列表中检索提取所有已创建图形对象的所有现有对象，并将它们放入集合列表之中。

在创建新的标准图形对象的方法中，把我今天实现的所有创建剩余对象的代码取消注释：

//+------------------------------------------------------------------+
//| CChartObjectsControl                                             |
//| Create a new standard graphical object                           |
//+------------------------------------------------------------------+
CGStdGraphObj *CChartObjectsControl::CreateNewGraphObj(const ENUM_OBJECT obj_type,const long chart_id,const string name)
  {
   CGStdGraphObj *obj=NULL;
   switch((int)obj_type)
     {
      //--- Lines
      case OBJ_VLINE             : return new CGStdVLineObj(chart_id,name);
      case OBJ_HLINE             : return new CGStdHLineObj(chart_id,name);
      case OBJ_TREND             : return new CGStdTrendObj(chart_id,name);
      case OBJ_TRENDBYANGLE      : return new CGStdTrendByAngleObj(chart_id,name);
      case OBJ_CYCLES            : return new CGStdCyclesObj(chart_id,name);
      case OBJ_ARROWED_LINE      : return new CGStdArrowedLineObj(chart_id,name);
      //--- Channels
      case OBJ_CHANNEL           : return new CGStdChannelObj(chart_id,name);
      case OBJ_STDDEVCHANNEL     : return new CGStdStdDevChannelObj(chart_id,name);
      case OBJ_REGRESSION        : return new CGStdRegressionObj(chart_id,name);
      case OBJ_PITCHFORK         : return new CGStdPitchforkObj(chart_id,name);
      //--- Gann
      case OBJ_GANNLINE          : return new CGStdGannLineObj(chart_id,name);
      case OBJ_GANNFAN           : return new CGStdGannFanObj(chart_id,name);
      case OBJ_GANNGRID          : return new CGStdGannGridObj(chart_id,name);
      //--- Fibo
      case OBJ_FIBO              : return new CGStdFiboObj(chart_id,name);
      case OBJ_FIBOTIMES         : return new CGStdFiboTimesObj(chart_id,name);
      case OBJ_FIBOFAN           : return new CGStdFiboFanObj(chart_id,name);
      case OBJ_FIBOARC           : return new CGStdFiboArcObj(chart_id,name);
      case OBJ_FIBOCHANNEL       : return new CGStdFiboChannelObj(chart_id,name);
      case OBJ_EXPANSION         : return new CGStdExpansionObj(chart_id,name);
      //--- Elliott
      case OBJ_ELLIOTWAVE5       : return new CGStdElliotWave5Obj(chart_id,name);
      case OBJ_ELLIOTWAVE3       : return new CGStdElliotWave3Obj(chart_id,name);
      //--- Shapes
      case OBJ_RECTANGLE         : return new CGStdRectangleObj(chart_id,name);
      case OBJ_TRIANGLE          : return new CGStdTriangleObj(chart_id,name);
      case OBJ_ELLIPSE           : return new CGStdEllipseObj(chart_id,name);
      //--- Arrows
      case OBJ_ARROW_THUMB_UP    : return new CGStdArrowThumbUpObj(chart_id,name);
      case OBJ_ARROW_THUMB_DOWN  : return new CGStdArrowThumbDownObj(chart_id,name);
      case OBJ_ARROW_UP          : return new CGStdArrowUpObj(chart_id,name);
      case OBJ_ARROW_DOWN        : return new CGStdArrowDownObj(chart_id,name);
      case OBJ_ARROW_STOP        : return new CGStdArrowStopObj(chart_id,name);
      case OBJ_ARROW_CHECK       : return new CGStdArrowCheckObj(chart_id,name);
      case OBJ_ARROW_LEFT_PRICE  : return new CGStdArrowLeftPriceObj(chart_id,name);
      case OBJ_ARROW_RIGHT_PRICE : return new CGStdArrowRightPriceObj(chart_id,name);
      case OBJ_ARROW_BUY         : return new CGStdArrowBuyObj(chart_id,name);
      case OBJ_ARROW_SELL        : return new CGStdArrowSellObj(chart_id,name);
      case OBJ_ARROW             : return new CGStdArrowObj(chart_id,name);
      //--- Graphical objects
      case OBJ_TEXT              : return new CGStdTextObj(chart_id,name);
      case OBJ_LABEL             : return new CGStdLabelObj(chart_id,name);
      case OBJ_BUTTON            : return new CGStdButtonObj(chart_id,name);
      case OBJ_CHART             : return new CGStdChartObj(chart_id,name);
      case OBJ_BITMAP            : return new CGStdBitmapObj(chart_id,name);
      case OBJ_BITMAP_LABEL      : return new CGStdBitmapLabelObj(chart_id,name);
      case OBJ_EDIT              : return new CGStdEditObj(chart_id,name);
      case OBJ_EVENT             : return new CGStdEventObj(chart_id,name);
      case OBJ_RECTANGLE_LABEL   : return new CGStdRectangleLabelObj(chart_id,name);

      default                    : return NULL;
     }
  }
//+------------------------------------------------------------------+

在类主体之外，编写返回图表最后一个添加的图形对象名称的方法：

//+------------------------------------------------------------------+
//| CChartObjectsControl                                             |
//| Return the name of the last graphical object                     |
//| added to the chart (th object becomes selected)                  |
//+------------------------------------------------------------------+
string CChartObjectsControl::LastAddedGraphObjName(void)
  {
   int index=0;
   datetime time=0;
   for(int i=0;i<this.m_total_objects;i++)
     {
      string name=::ObjectName(this.ChartID(),i);
      datetime tm=(datetime)::ObjectGetInteger(this.ChartID(),name,OBJPROP_CREATETIME);
      if(tm>time)
        {
         time=tm;
         index=i;
        }
     }
   return ::ObjectName(this.ChartID(),index);
  }
//+------------------------------------------------------------------+

在此，我们简单地循环遍历所有图表对象，查找创建时间最长的图形对象，依据找到的索引选择对象（索引可能不是最大值，因为图形对象按名称存储在终端列表中），并返回其名称。

鉴于我们有两种类型的图形对象函数库能够创建和跟踪 — 标准的、和使用 CCanvas 类创建的，故图形对象集合中会有两个列表 — 标准图形对象列表和画布上的对象列表，因为它们的属性十分不同，我认为将参数存储在相同的对象属性枚举中是不合适的。

在类的私密部分，声明新列表 — 画布上所有图形元素的列表。 它包含画布上的所有图形对象。 由于我已经声明了所有图形对象的列表，我将用它来存储标准图形对象：

//+------------------------------------------------------------------+
//| Collection of graphical objects                                  |
//+------------------------------------------------------------------+
class CGraphElementsCollection : public CBaseObj
  {
private:
   CArrayObj         m_list_charts_control;     // List of chart management objects
   CListObj          m_list_all_canv_elm_obj;   // List of all graphical elements on canvas
   CListObj          m_list_all_graph_obj;      // List of all graphical objects
   bool              m_is_graph_obj_event;      // Event flag in the list of graphical objects
   int               m_total_objects;           // Number of graphical objects
   int               m_delta_graph_obj;         // Difference in the number of graphical objects compared to the previous check
   
//--- Return the flag indicating the graphical element object in the list of graphical objects
   bool              IsPresentGraphElmInList(const int id,const ENUM_GRAPH_ELEMENT_TYPE type_obj);
//--- Return the pointer to the object of managing objects of the specified chart
   CChartObjectsControl *GetChartObjectCtrlObj(const long chart_id);
//--- Create a new object of managing graphical objects of a specified chart and add it to the list
   CChartObjectsControl *CreateChartObjectCtrlObj(const long chart_id);
//--- Update the list of graphical objects by chart ID
   CChartObjectsControl *RefreshByChartID(const long chart_id);
//--- Return the first free ID of the graphical (1) object and (2) element on canvas
   long              GetFreeGraphObjID(void);
   long              GetFreeCanvElmID(void);
//--- Add a graphical object to the collection
   bool              AddGraphObjToCollection(const string source,CChartObjectsControl *obj_control);
   
public:

依据图表 ID 更新图形对象列表的私密方法，现在返回指向对象的指针，将由管理图形对象接管。 我们将需要它来访问新创建的对象列表。

此处我们还声明了三个方法：返回第一个空闲图形对象 ID 的方法，和画布上的元素，以及将图形对象添加到集合的方法 。

在类的公开部分，将 GetList() 方法替换为两个方法 — 其一个返回标准图形对象的集合列表，另一个则返回画布上的图形元素集合列表 ：

public:
//--- Return itself
   CGraphElementsCollection *GetObject(void)                                                             { return &this;                        }
   //--- Return the full collection list of standard graphical objects "as is"
   CArrayObj        *GetListGraphObj(void)                                                               { return &this.m_list_all_graph_obj;   }
   //--- Return the full collection list of graphical elements on canvas "as is"
   CArrayObj        *GetListCanvElm(void)                                                                { return &this.m_list_all_canv_elm_obj;}
   //--- Return the list by selected (1) integer, (2) real and (3) string properties meeting the compared criterion
   CArrayObj        *GetList(ENUM_CANV_ELEMENT_PROP_INTEGER property,long value,ENUM_COMPARER_TYPE mode=EQUAL) { return CSelect::ByGraphCanvElementProperty(this.GetListCanvElm(),property,value,mode);  }
   CArrayObj        *GetList(ENUM_CANV_ELEMENT_PROP_DOUBLE property,double value,ENUM_COMPARER_TYPE mode=EQUAL){ return CSelect::ByGraphCanvElementProperty(this.GetListCanvElm(),property,value,mode);  }
   CArrayObj        *GetList(ENUM_CANV_ELEMENT_PROP_STRING property,string value,ENUM_COMPARER_TYPE mode=EQUAL){ return CSelect::ByGraphCanvElementProperty(this.GetListCanvElm(),property,value,mode);  }
   
   CArrayObj        *GetList(ENUM_GRAPH_OBJ_PROP_INTEGER property,long value,ENUM_COMPARER_TYPE mode=EQUAL)    { return CSelect::ByGraphicStdObjectProperty(this.GetListGraphObj(),property,value,mode); }
   CArrayObj        *GetList(ENUM_GRAPH_OBJ_PROP_DOUBLE property,double value,ENUM_COMPARER_TYPE mode=EQUAL)   { return CSelect::ByGraphicStdObjectProperty(this.GetListGraphObj(),property,value,mode); }
   CArrayObj        *GetList(ENUM_GRAPH_OBJ_PROP_STRING property,string value,ENUM_COMPARER_TYPE mode=EQUAL)   { return CSelect::ByGraphicStdObjectProperty(this.GetListGraphObj(),property,value,mode); }
   //--- Return the number of new graphical objects, (3) the flag of the occurred change in the list of graphical objects
   int               NewObjects(void)   const                                                            { return this.m_delta_graph_obj;       }
   bool              IsEvent(void) const                                                                 { return this.m_is_graph_obj_event;    }
   //--- Constructor
                     CGraphElementsCollection();
//--- Display the description of the object properties in the journal (full_prop=true - all properties, false - supported ones only - implemented in descendant classes)
   virtual void      Print(const bool full_prop=false,const bool dash=false);
//--- Display a short description of the object in the journal
   virtual void      PrintShort(const bool dash=false,const bool symbol=false);

//--- Create the list of chart management objects and return the number of charts
   int               CreateChartControlList(void);
//--- Update the list of (1) all graphical objects, (2) on the specified chart, fill in the data on the number of new ones and set the event flag
   void              Refresh(void);
   void              Refresh(const long chart_id);
  };
//+------------------------------------------------------------------+

由于单一类现在拥有两个集合列表，标准图形对象需要依据选定的对象属性返回列表的方法。

依据图表 ID 更新图形对象列表的私有方法， 现在返回指向对象的指针，将由管理图形对象接管：

//+------------------------------------------------------------------+
//| Update the list of graphical objects by chart ID                 |
//+------------------------------------------------------------------+
CChartObjectsControl *CGraphElementsCollection::RefreshByChartID(const long chart_id)
  {
//--- Get the pointer to the object for managing graphical objects
   CChartObjectsControl *obj=GetChartObjectCtrlObj(chart_id);
//--- If there is no such an object in the list, create a new one and add it to the list
   if(obj==NULL)
      obj=this.CreateChartObjectCtrlObj(chart_id);
//--- If the pointer to the object is not valid, leave the method
   if(obj==NULL)
      return NULL;
//--- Update the list of graphical objects on a specified chart
   obj.Refresh();
   return obj;
  }
//+------------------------------------------------------------------+

若前提是有事件发生，更新所有图形对象列表的方法现在将从图形对象管理类接收新添加的对象列表，然后从列表中检索对象，并将它们添入集合列表：

//+------------------------------------------------------------------+
//| Update the list of all graphical objects                         |
//+------------------------------------------------------------------+
void CGraphElementsCollection::Refresh(void)
  {
//--- Declare variables to search for charts
   long chart_id=0;
   int i=0;
//--- In the loop by all open charts in the terminal (no more than 100)
   while(i<CHARTS_MAX)
     {
      //--- Get the chart ID
      chart_id=::ChartNext(chart_id);
      if(chart_id<0)
         break;
      //--- Get the pointer to the object for managing graphical objects
      //--- and update the list of graphical objects by chart ID
      CChartObjectsControl *obj_ctrl=this.RefreshByChartID(chart_id);
      //--- If failed to get the pointer, move on to the next chart
      if(obj_ctrl==NULL)
         continue;
      //--- If the number of objects on the chart changes
      if(obj_ctrl.IsEvent())
        {
         //--- If a graphical object is added to the chart
         if(obj_ctrl.Delta()>0)
           {
            //--- Get the list of added graphical objects and move them to the collection list
            //--- (if failed to move the object to the collection, move on to the next object)
            if(!AddGraphObjToCollection(DFUN_ERR_LINE,obj_ctrl))
               continue;
           }
         //--- If the graphical object has been removed
         else if(obj_ctrl.Delta()<0)
           {
            
           }
         //--- otherwise
         else
           {
            
           }
        }
      //--- Increase the loop index
      i++;
     }
  }
//+------------------------------------------------------------------+

代码注释中简要描述了方法逻辑，理应不会造成任何困难。

返回图形对象的第一个空闲 ID，和画布上的图形元素的方法：

//+------------------------------------------------------------------+
//| Return the first free graphical object ID                        |
//+------------------------------------------------------------------+
long CGraphElementsCollection::GetFreeGraphObjID(void)
  {
   int index=CSelect::FindGraphicStdObjectMax(this.GetListGraphObj(),GRAPH_OBJ_PROP_ID);
   CGStdGraphObj *obj=this.m_list_all_graph_obj.At(index);
   return(obj!=NULL ? obj.ObjectID()+1 : 1);
  }
//+------------------------------------------------------------------+
//| Return the first free ID                                         |
//| of the graphical element on canvas                               |
//+------------------------------------------------------------------+
long CGraphElementsCollection::GetFreeCanvElmID(void)
  {
   int index=CSelect::FindGraphCanvElementMax(this.GetListCanvElm(),CANV_ELEMENT_PROP_ID);
   CGCnvElement *obj=this.m_list_all_canv_elm_obj.At(index);
   return(obj!=NULL ? obj.ID()+1 : 1);
  }
//+------------------------------------------------------------------+

此处获取最大 ID 的对象索引，根据检测到的 ID 从列表中获取相同 ID 的对象，然后返回 ID 值 +1。 如果在列表中没有找到对象，则返回 1，因为在集合中并无对象。 ID 为 1 意即分配第一个。

将图形对象添加到集合中的方法：

//+------------------------------------------------------------------+
//| Add a graphical object to the collection                         |
//+------------------------------------------------------------------+
bool CGraphElementsCollection::AddGraphObjToCollection(const string source,CChartObjectsControl *obj_control)
  {
   //--- Get the list of the last added graphical objects from the class for managing graphical objects
   CArrayObj *list=obj_control.GetListNewAddedObj();
   //--- If failed to obtain the list, inform of that and return 'false'
   if(list==NULL)
     {
      CMessage::ToLog(DFUN_ERR_LINE,MSG_GRAPH_OBJ_FAILED_GET_ADDED_OBJ_LIST);
      return false;
     }
   //--- If the list is empty, return 'false'
   if(list.Total()==0)
      return false;
   //--- Declare the variable for storing the result
   bool res=true;
   //--- In the loop by the list of newly added standard graphical objects,
   for(int i=0;i<list.Total();i++)
     {
      //--- retrieve the next object from the list and
      CGStdGraphObj *obj=list.Detach(i);
      //--- if failed to get the object, inform of that, add 'false' to the resulting variable and move on to the next one
      if(obj==NULL)
        {
         CMessage::ToLog(source,MSG_GRAPH_OBJ_FAILED_DETACH_OBJ_FROM_LIST);
         res &=false;
         continue;
        }
      //--- if failed to add the object to the collection list, inform of that,
      //--- remove the object, add 'false' to the resulting variable and move on to the next one
      if(!this.m_list_all_graph_obj.Add(obj))
        {
         CMessage::ToLog(source,MSG_LIB_SYS_FAILED_OBJ_ADD_TO_LIST);
         delete obj;
         res &=false;
         continue;
        }
      //--- The object has been successfully retrieved from the list of newly added graphical objects and introduced into the collection -
      //--- find the next free object ID, write it to the property and display the short object description in the journal
      else
        {
         obj.SetObjectID(this.GetFreeGraphObjID());
         obj.PrintShort();
        }
     }
   //--- Return the result of adding the object to the collection
   return res;
  }
//+------------------------------------------------------------------+

方法逻辑在代码注释中已有详细讲述，无需赘言。 如果您有任何疑问，请随时在下面的评论中提问。 加到集合中的对象的简述，会在日志中临时显示以供测试。

将标准图形对象添加到集合的功能创建完毕。


测试

若要执行测试，我们延用上一篇文章中的 EA，并将其保存到 \MQL5\Experts\TestDoEasy\Part85\，命名为 TestDoEasyPart85.mq5。 EA 不会有任何变化。
简单地编译 EA，在图表上启动它，并将不同的图形对象添加到不同的图表。 在日志里将显示有关它们创建的简述消息：


数据可能不足以简述新添加的图形对象。
稍后，我将略微扩展不同图形对象所要显示的简述信息。


下一步是什么？

在下一篇文章中，我将继续开发图形对象集合类，和描述标准图形对象的对象。

以下是该函数库当前版本的所有文件，以及 MQL5 的测试 EA 文件，供您测试和下载。

在评论中留下您的问题、意见和建议。

返回内容目录

*该系列的前几篇文章:

DoEasy 函数库中的图形（第七十三部分）：图形元素的交互窗对象
DoEasy 函数库中的图形（第七十四部分）：由 CCanvas 类提供强力支持的基本图形元素
DoEasy 函数库中的图形（第七十五部分）：处理基本图形元素图元和文本的方法
DoEasy 函数库中的图形（第七十六部分）：会话窗对象和预定义的颜色主题
DoEasy 函数库中的图形（第七十七部分）：阴影对象类
DoEasy 函数库中的图形（第七十八部分）：函数库中的动画原理 图像切片
DoEasy 函数库中的图形（第七十九部分）：“动画框”对象类及其衍生对象
DoEasy 函数库中的图形（第八十部分）：“几何动画框”对象类
DoEasy 函数库中的图形（第八十一部分）：将图形集成到函数库对象之中
DoEasy 函数库中的图形（第八十二部分）：函数库对象重构和图形对象集合
DoEasy 函数库中的图形（第八十三部分）：抽象标准图形对象类
DoEasy 函数库中的图形（第八十四部分）：抽象标准图形对象的衍生后代类

本文由MetaQuotes Ltd译自俄文
原文地址： https://www.mql5.com/ru/articles/9964

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