Libraries: EasyAndFastGUI library for creating graphical interfaces - page 20

[Gustavo Hennemann]

Today I started to use this library, build from 2019.03.13 16:43 (I think build 16). So, I'm using it to create tables, it's working almost perfectly, I used as reference the articles:

https://www.mql5.com/en/articles/2500#para6

https://www.mql5.com/en/articles/2897#para7

For me is important to have the sorting feature, so, I use the library acording to instructions on article "X". If I use that build (build 6) the table works very well, but if I use the last build (build 16), the table do not sorts the elements when I click on the header cells.

Investigating the main differences, I got this in the file Table.mqh.

This is in the build 6:

void CTable::SortData(const uint column_index=0)
{
   ...
   //--- Store the index of the last sorted data column
   m_is_sorted_column_index=(int)column_index;
   //--- Sorting
   QuickSort(first_index,last_index,column_index,m_last_sort_direction);
   //--- Update the table
   UpdateTable();
   //--- Set the icon according to the sorting direction
   m_sort_arrow.State((m_last_sort_direction==SORT_ASCEND)? true : false);
}

This is in the build 16:

void CTable::SortData(const uint column_index=0,const int direction=WRONG_VALUE)
{
   ...
   //--- Запомним индекс последнего отсортированного столбца данных
   m_is_sorted_column_index=(int)column_index;
   //--- Сортировка
   QuickSort(first_index,last_index,column_index,m_last_sort_direction);
}

In the new build there is no "Update" method, so, I think this is the reason to not sorting.

Thus, I made this change and it apparently worked:

void CTable::SortData(const uint column_index=0,const int direction=WRONG_VALUE)
{
   ...
   //--- Запомним индекс последнего отсортированного столбца данных
   m_is_sorted_column_index=(int)column_index;
   //--- Сортировка
   QuickSort(first_index,last_index,column_index,m_last_sort_direction);
   
   //--- Update the table
   Update(true);
}

PS.: comments in russian doesn't help too much.

[Mano]

Where is Label Class in the Library ? How to create a single Label ?

[raulpjr]

Say Gustavo! Beauty?

I was racking my brains here too to make the graph chart sort work and I got it by chance ...

It is necessary to have the table updated in the ON_SORT_DATA event of your "program.mqh", something like:

// --- Ordered table events
if (id == CHARTEVENT_CUSTOM + ON_SORT_DATA)
{
if (lparam == m_table_symb.Id ())
{
m_table_symb.Update (true);
return;
}
// ---
return;
}

Hope this helps!

Here it worked perfect !!!

T +

Raul

[Keith Watford]

raulpjr:

This is an English language forum. Please only post in English.

Use the site's translation tool if necessary.

When posting code use the code button (Alt +S).

I have edited your post this time.

[Mikhail Zaprudin]

If I build ExampleEAF from the library as an indicator in MT4, the indicator crashes with an error when I try to drag the window on the chart

It works fine in MT5

array out of range in 'WndEvents.mqh' (288,72)

If I add a check for range overrun in the first cycle, then dragging works.

void CWndEvents::CheckElementsEvents(void)
  {
//--- Handling the mouse cursor movement event
   if(m_id==CHARTEVENT_MOUSE_MOVE)
     {
      //--- Exit if the form is in another subwindow of the chart
      if(!m_windows[m_active_window_index].CheckSubwindowNumber())
         return;
      //--- Check only available items
      int available_elements_total=CWndContainer::AvailableElementsTotal(m_active_window_index);
      for(int e=0; e<available_elements_total; e++)
        {
         // !!! Additional check
         if (e >= ArraySize(m_wnd[m_active_window_index].m_available_elements)) continue;
         CElement *el=m_wnd[m_active_window_index].m_available_elements[e];
         //--- Checking focus over elements
         el.CheckMouseFocus();
         //--- Event Handling
         el.OnEvent(m_id,m_lparam,m_dparam,m_sparam);
        }
     }
//--- All events except mouse cursor movement
   else
     {
      int elements_total=CWndContainer::ElementsTotal(m_active_window_index);
      for(int e=0; e<elements_total; e++)
        {
         //--- Check only available items
         CElement *el=m_wnd[m_active_window_index].m_elements[e];
         if(!el.IsVisible() || !el.IsAvailable() || el.IsLocked())
            continue;
         //--- Event handling in the item handler
         el.OnEvent(m_id,m_lparam,m_dparam,m_sparam);
        }
     }
//--- Directing the event to the application file
   OnEvent(m_id,m_lparam,m_dparam,m_sparam);
  }

but "expanding" the window to the whole chart area and returning back stops working.

Can you tell me how to fix this problem so that it works normally in MT4 too?

What is the difference? No warning during compilation in MT4, I don't know what direction to dig in.

Also in MT4 when compiling as an indicator focus switching does not work in the sense that if you open a dropdown list and click somewhere aside, the list does not close and the input focus does not switch to another element, in Expert mode it works normally.

In MT5 both Expert Advisor and indicator work normally

[Sergey Likho]

Good afternoon, hint somehow it is possible to implement copy and paste text from text fields.

[Sergey Likho]

Another interesting glitch with tables.

After several inputs characters start to double and then triple (see gif).

What could be the problem?

[Jiayou Hu]

CreateTextEdit doesn't seem to support Chinese input?

CreateTextEdit doesn't seem to support Chinese input?

[Tinashe Chipomho]

Hi

Where can I download the MT4 version of this library?

[o-dima]

Could you please tell me how to change the default font of a programme (Expert Advisor) using this library? It is the one that prints everything starting from the title in the programme header. At least change the size (increase).