周内日期的颜色 - MetaTrader 5脚本

改编版的 周内日期 - 现在周内的每一天都会以一个单独的颜色标记:

DRAW_COLOR_HISTOGRAM 样式需要 两个缓存区 (一个数值缓存区 HistogramBuffer 和一个颜色缓存区 HistogramColors):

//+------------------------------------------------------------------+
//|                                       Days of the week color.mq5 |
//|                                版权所有 © 2018, Vladimir Karputov |
//|                                           http://wmua.ru/slesar/ |
//+------------------------------------------------------------------+
#property copyright "版权所有 © 2018, Vladimir Karputov"
#property link      "http://wmua.ru/slesar/"
#property version   "1.000"
#property indicator_separate_window
#property description "以颜色直方图的形式显示周内日期"

#property indicator_separate_window 
#property indicator_buffers 2 
#property indicator_plots   1 
//--- 绘制直方图 
#property indicator_label1  "Day colors" 
#property indicator_type1   DRAW_COLOR_HISTOGRAM
//--- 为线段着色定义 8 种颜色
#property indicator_color1  clrCyan,clrRed,clrYellowGreen,clrBlue,clrYellow,clrNavy,clrGold,clrMediumSeaGreen
#property indicator_style1  STYLE_SOLID 
#property indicator_width1  2
//--- 指标缓存区 
double         HistogramBuffer[];
double         HistogramColors[];
//+------------------------------------------------------------------+
//| 自定义指标初始化函数                                               |
//+------------------------------------------------------------------+

颜色在指标线中设置

//--- 为线段着色定义 8 种颜色
#property indicator_color1  clrCyan,clrRed,clrYellowGreen,clrBlue,clrYellow,clrNavy,clrGold,clrMediumSeaGreen

此处，颜色 clrCyan 的索引为 "0"，clrRed 的索引为 "1"，依此类推。

直方图的颜色管理，通过为每个 HistogramColors 缓存区索引分配单独的 颜色索引 来实现。

switch(STime.day_of_week)
        {
         case  0:
            HistogramBuffer[i]=0;
            HistogramColors[i]=0;
            break;
         case  1:
            HistogramBuffer[i]=1;
            HistogramColors[i]=1;
            break;
         case  2:
            HistogramBuffer[i]=2;
            HistogramColors[i]=2;
            break;
         case  3:
            HistogramBuffer[i]=3;
            HistogramColors[i]=3;
            break;
         case  4:
            HistogramBuffer[i]=4;
            HistogramColors[i]=4;
            break;
         case  5:
            HistogramBuffer[i]=5;
            HistogramColors[i]=5;
            break;
         case  6:
            HistogramBuffer[i]=6;
            HistogramColors[i]=6;
            break;
        }