SymbolsInformer/ConsoleDialog.mqh

<EFBFBD><EFBFBD>//+------------------------------------------------------------------+
//|                                                ConsoleDialog.mqh |
//|                                      Copyright 2025, Yuriy Bykov |
//|                            https://www.mql5.com/ru/users/antekov |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, Yuriy Bykov"
#property link      "https://www.mql5.com/ru/users/antekov"
#property version   "1.00"

#include "Include/Adwizard/Utils/Macros.mqh"
#include <Canvas/Canvas.mqh>
#include <Controls/Dialog.mqh>

#define DIALOG_VERTICAL_MARGIN (17) // BABC? 25@E=53> :@0O 480;>3>2>3> >:=0 >B :@0O 3@0D8:0

//+------------------------------------------------------------------+
//| ;0AA 480;>3>2>3> >:=0 =0 25AL M:@0=                             |
//| 4;O 2K2>40 <=>3>AB@>G=>3> B5:AB0                                 |
//+------------------------------------------------------------------+
class CConsoleDialog : public CAppDialog {
protected:
   CCanvas           m_canvas;         // 1J5:B E>;AB0 4;O 2K2>40 B5:AB0

   string            m_lines[];        // 0AA82 AB@>: B5:AB0
   string            m_text;           // "5:AB 4;O 2K2>40 2 480;>3>2>< >:=5

   int               m_startRow;       // 0G0;L=0O AB@>:0 2848<>3> B5:AB0
   int               m_startCol;       // 0G0;L=K9 AB>;15F (A8<2>;) 2848<>3> B5:AB0

   int               m_totalRows;      // 1I55 G8A;> AB@>: B5:AB0
   int               m_totalCols;      // 1I55 G8A;> A8<2>;>2 2 A0<>9 4;8==>9 AB@>:5 B5:AB0

   int               m_visibleRows;    // 0:A8<0;L=>5 :>;8G5AB2> 2848<KE AB@>:
   int               m_visibleCols;    // 0:A8<0;L=>5 :>;8G5AB2> 2848<KE A8<2>;>2 2 AB@>:5

   string            m_fontName;          // 0720=85 H@8DB0 4;O B5:AB0
   int               m_fontSize;          //  07<5@ H@8DB0
   uint              m_fontColor;         // &25B H@8DB0

   int               m_fontSymbolWidth;   // (8@8=0 >4=>3> A8<2>;0 2 ?8:A5;OE
   int               m_fontSymbolHeight;  // KA>B0 AB@>:8 B5:AB0 2 ?8:A5;OE

   uint              m_backgroundColor;   // &25B D>=0

   bool              m_mouseWheel;        // @54K4CI55 A>AB>O=85 >BA;56820=8O A>1KB89 ?@>:@CB:8 <KHLN

   bool              CreateCanvas();      // !>740=85 E>;AB0
   void              UpdateCanvas();      // K2>4 B5:AB0 =0 E>;AB5
   void              UpdateCanvasFont();  // 7<5=5=85 H@8DB0 E>;AB0

public:
                     CConsoleDialog();       // >=AB@C:B>@
                    ~CConsoleDialog(void);   // 5AB@C:B>@

   // 5B>4K A>740=8O 480;>3>2>3> >:=0
   bool              Create(string name);
   virtual bool      Create(const long chart, const string name, const int subwin,
                            const int x1, const int y1, const int x2, const int y2);
   // 1@01>B:0 A>1KB89
   virtual void      ChartEvent(const int id, const long &lparam,
                                const double &dparam, const string &sparam);

   virtual void      Minimize();             // 8=8<870F8O 480;>3>2>3> >:=0
   virtual void      Maximize();             // 0:A8<870F8O 480;>3>2>3> >:=0

   virtual void      Text(string text);      // #AB0=>2:0 =>2>3> B5:AB0

   virtual void      FontName(string p_fontName);  // #AB0=>2:0 =0720=8O H@8DB0
   virtual bool      FontSize(int p_fontSize);     // #AB0=>2:0 @07<5@0 H@8DB0
   virtual void      FontColor(uint p_fontColor);  // #AB0=>2:0 F25B0 H@8DB0

   // #AB0=>2:0 F25B0 D>=0
   virtual void      BackgroundColor(uint p_backgroundColor);
};


//+------------------------------------------------------------------+
//| >=AB@C:B>@                                                      |
//+------------------------------------------------------------------+
CConsoleDialog::CConsoleDialog() :
   m_fontName("Consolas"),
   m_fontSize(13),
   m_fontColor(ColorToARGB(clrBlack, 240)),
   m_backgroundColor(ColorToARGB(clrBlack, 0)) {
   FontSize(m_fontSize);
}

//+------------------------------------------------------------------+
//| 5AB@C:B>@                                                       |
//+------------------------------------------------------------------+
CConsoleDialog::~CConsoleDialog() {
// #40;O5< E>;AB
   m_canvas.Destroy();

// >72@0I05< ?@56=NN =0AB@>9:C >1@01>B:8 A>1KB89 ?@>:@CB:8 <KHLN
   ChartSetInteger(m_chart_id, CHART_EVENT_MOUSE_WHEEL, (long)m_mouseWheel);
}

//+------------------------------------------------------------------+
//| 5B>4 A>740=8O 480;>3>2>3> >:=0 B>;L:> ?> 8<5=8                  |
//+------------------------------------------------------------------+
bool CConsoleDialog::Create(string name) {
// #AB0=02;8205< ?>;>65=85 C3;0 8 @07<5@K >:=0
   int x1 = 0;
   int y1 = DIALOG_VERTICAL_MARGIN;
   int y2 = (int) ChartGetInteger(0, CHART_HEIGHT_IN_PIXELS, 0);
   int x2 = (int) ChartGetInteger(0, CHART_WIDTH_IN_PIXELS, 0);

// K7K205< <5B>4 A>740=8O ?> 7040==K< @07<5@0<
   return Create(0, name, 0, x1, y1, x2, y2);
}

//+------------------------------------------------------------------+
//| 5B>4 A>740=8O 480;>3>2>3> >:=0                                  |
//+------------------------------------------------------------------+
bool CConsoleDialog::Create(const long chart, const string name, const int subwin, const int x1, const int y1, const int x2, const int y2) {
// K7>2 @>48B5;LA:>3> <5B>40 A>740=8O 480;>30
   if(!CAppDialog::Create(chart, name, subwin, x1, y1, x2, y2)) {
      return false;
   }

// #AB=>2:0 @07<5@>2 <8=8<878@>20==>3> >:=0 480;>30
   m_min_rect.SetBound(0, DIALOG_VERTICAL_MARGIN,
                       250, DIALOG_VERTICAL_MARGIN + CONTROLS_DIALOG_MINIMIZE_HEIGHT);

// !>740=85 E>;AB0
   if(!CreateCanvas()) {
      return false;
   }

// 0?><8=05< ?@56=NN =0AB@>9:C >1@01>B:8 A>1KB89 ?@>:@CB:8 <KHLN
   m_mouseWheel = ChartGetInteger(0, CHART_EVENT_MOUSE_WHEEL);

// #AB0=02;8205< >BA;56820=85 A>1KB89 ?@>:@CB:8 <KHLN
   ChartSetInteger(chart, CHART_EVENT_MOUSE_WHEEL, 1);

// #AB0=02;8205< =0G0;L=>5 ?>;>65=85 B5:AB0 2 >:=5
   m_startRow = 0;
   m_startCol = 0;

   return true;
}

//+------------------------------------------------------------------+
//| 1@01>B:0 A>1KB89                                                |
//+------------------------------------------------------------------+
void CConsoleDialog::ChartEvent(const int id, const long &lparam, const double &dparam, const string &sparam) {
// 1@01>B:0 A>1KB8O ?@>:@CB:8 :>;QA8:0 <KH8
   if(id == CHARTEVENT_MOUSE_WHEEL) {
      // A;8 >:=> 480;>30 <8=8<878@>20=>, B> =5 >1@010BK205< MB> A>1KB85
      if(m_minimized) {
         return;
      }

      //  0718@05< A>AB>O=85 :=>?>: 8 :>;5A8:0 <KH:8 4;O MB>3> A>1KB8O
      int flg_keys = (int)(lparam >> 32);       // D;03 A>AB>O=89 :;028H Ctrl, Shift 8 :=>?>: <KH:8
      int delta    = (int)dparam;               // AC<<0@=>5 7=0G5=85 ?@>:@CB:8 :>;5A8:0,
      // A@010BK205B ?@8 4>AB865=88 +120 8;8 -120

      // A;8 =060B0 :;028H0 SHIFT, B>
      if((flg_keys & 0x0004) != 0) {
         // A;8 :>;8G5AB2> A8<2>;>2 2 AB@>:5 1>;LH5 :>;8G5AB20 2848<KE
         // A8<2>;>2 2 480;>35, B> 2K?>;=O5< 3>@87>=B0;L=>5 A<5I5=85
         if(m_totalCols > m_visibleCols) {
            // 0 >4=> A>1KB85 ?@>:@CB:8 1C45< A<5I0BLAO =0 2 A8<2>;0 (120 / 60 = 2)
            delta /= 60;

            // A;8 =>20O =0G0;L=0O ?>78F8O ?>?0405B 2 4>?CAB8<K9 480?07>=, B>
            if(m_startCol - delta >= 0
                  && m_startCol - delta <= m_totalCols - m_visibleCols + 2) {
               // 0?><8=05< =>2CN =0G0;L=CN ?>78F8N
               m_startCol -= delta;

               // 1=>2;O5< E>;AB
               UpdateCanvas();
            }
         }
      } else if (flg_keys == 0) {
         // =0G5 5A;8 :>;8G5AB2> AB@>: B5:AB0 1>;LH5 :>;8G5AB20 2848<KE
         // AB@>: 2 480;>35, B> 2K?>;=O5< 25@B8:0;L=>5 A<5I5=85
         if(m_totalRows > m_visibleRows) {
            // 0 >4=> A>1KB85 ?@>:@CB:8 1C45< A<5I0BLAO =0 1 AB@>:C (120 / 120 = 1)
            delta /= 120;

            // A;8 =>20O =0G0;L=0O ?>78F8O ?>?0405B 2 4>?CAB8<K9 480?07>=, B>
            if(m_startRow - delta >= 0
                  && m_startRow - delta <= m_totalRows - m_visibleRows + 1) {
               // 0?><8=05< =>2CN =0G0;L=CN ?>78F8N
               m_startRow -= delta;

               // 1=>2;O5< E>;AB
               UpdateCanvas();
            }
         }
      } else if((flg_keys & 0x0008) != 0) {
         // =0G5 5A;8 =060B0 :;028H0 CTRL, B> ?@>1C5< CAB0=>28BL =>2K9 @07<5@ H@8DB0
         if(FontSize(m_fontSize + delta / 120)) {
            // 1=>2;O5< E>;AB
            UpdateCanvas();
         }
      }

      return;
   }

// 1@01>B:0 A>1KB8O 87<5=5=8O 3@0D8:0
   if(id == CHARTEVENT_CHART_CHANGE) {
      // A;8 @07<5@K >B>1@0605<>9 >1;0AB8 87<5=8;8AL
      if(m_chart.HeightInPixels(m_subwin) != Height() + DIALOG_VERTICAL_MARGIN
            || m_chart.WidthInPixels() != Width()) {
         // #AB0=>28BL 4;O 480;>3>2>3> >:=0 =>2K5 @07<5@K
         m_norm_rect.SetBound(0, DIALOG_VERTICAL_MARGIN, m_chart.WidthInPixels(), m_chart.HeightInPixels(m_subwin));

         // A;8 >:=> 480;>30 =5 <8=8<878@>20=>, B>
         if(!m_minimized) {
            //  072>@0G825< 53> =0 ?>;=K9 M:@0= 3@0D8:0 A =>2K<8 @07<5@0<8
            Maximize();
         }
         return;
      }
   }

// 1@01>B:0 >BA0;L=KE A>1KB89 2 2KH5AB>OI5< :;0AA5
   CAppDialog::ChartEvent(id, lparam, dparam, sparam);
}

//+------------------------------------------------------------------+
//| 8=<870F8O 480;>3>2>3> >:=0                                      |
//+------------------------------------------------------------------+
void CConsoleDialog::Minimize() {
// #40;O5< E>;AB
   m_canvas.Destroy();

// K7K205< @>48B5;LA:89 <5B>4 <8=8<870F88
   CAppDialog::Minimize();
}

//+------------------------------------------------------------------+
//| 0:A8<870F8O 480;>3>2>3> >:=0                                    |
//+------------------------------------------------------------------+
void CConsoleDialog::Maximize() {
// K7K205< @>48B5;LA:89 <5B>4 <0:A8<870F88
   CAppDialog::Maximize();

// !>740Q< E>;AB
   CreateCanvas();

// K2>48< B5:AB =0 E>;AB5
   UpdateCanvas();
}

//+------------------------------------------------------------------+
//| #AB0=>2:0 B5:AB0                                                 |
//+------------------------------------------------------------------+
void CConsoleDialog::Text(string text) {
// A;8 B5:AB 87<5=O5BAO, B>
   if(text != m_text) {
      // 0?><=8< =>2K9 B5:B
      m_text = text;

      // 5;8< B5:AB =0 AB@>:8
      StringSplit(m_text, '\n', m_lines);

      // 0?><8=05< :>;8G5AB2> AB@>:
      m_totalRows = ArraySize(m_lines);

      // ?@545;O5< <0:A8<0;L=CN 4;8=C AB@>:
      m_totalCols = 0;
      FOREACH(m_lines) {
         m_totalCols = MathMax(m_totalCols, StringLen(m_lines[i]));
      }

      // K2>48< B5:AB =0 E>;AB5
      UpdateCanvas();
   }
}

//+------------------------------------------------------------------+
//| #AB0=>2:0 =0720=8O H@8DB0                                        |
//+------------------------------------------------------------------+
void CConsoleDialog::FontName(string p_fontName) {
// 0?><8=05< =>2>5 8<O H@8DB0
   m_fontName = p_fontName;

// 1=>2;O5< H@8DB E>;AB0
   UpdateCanvasFont();
}

//+------------------------------------------------------------------+
//| #AB0=>2:0 @07<5@0 H@8DB0                                         |
//+------------------------------------------------------------------+
bool CConsoleDialog::FontSize(int p_fontSize) {
// A;8 @07<5@ =0E>48BAO 2 @07C<=KE ?@545;0E, B>
   if (p_fontSize >= 8 && p_fontSize <= 72) {
      // 0?><8=05< =>2K9 @07<5@ H@8DB0
      m_fontSize = p_fontSize;

      // !1@0AK205< =0G0;L=CN AB@>:C 8 AB>;15F
      m_startRow = 0;
      m_startCol = 0;

      // 1=>2;O5< H@8DB E>;AB0
      UpdateCanvasFont();

      return true;
   }

   return false;
}

//+------------------------------------------------------------------+
//| #AB0=>2:0 F25B0 H@8DB0                                           |
//+------------------------------------------------------------------+
void CConsoleDialog::FontColor(uint p_fontColor) {
   m_fontColor = p_fontColor;
}

//+------------------------------------------------------------------+
//| #AB0=>2:0 F25B0 D>=0                                             |
//+------------------------------------------------------------------+
void CConsoleDialog::BackgroundColor(uint p_backgroundColor) {
   m_backgroundColor = p_backgroundColor;
}

//+------------------------------------------------------------------+
//| !>740=85 E>;AB0                                                  |
//+------------------------------------------------------------------+
bool CConsoleDialog::CreateCanvas() {
// >;CG05< @07<5@K :;85=BA:>9 >1;0AB8 480;>3>2>3> >:=0
   int height = ClientAreaHeight();
   int width = ClientAreaWidth();

// A;8 @07<5@K =5=C;52K5
   if(height > 0 && width > 0) {
      // A;8 ?@8 A>740=88 E>;AB0 2>7=8:;0 >H81:0, B> 2KE>48<
      if(!m_canvas.CreateBitmapLabel("display",
                                     ClientAreaLeft(),
                                     ClientAreaTop(),
                                     ClientAreaWidth(),
                                     ClientAreaHeight(),
                                     COLOR_FORMAT_ARGB_NORMALIZE)) {
         PrintFormat(__FUNCTION__" | ERROR: Creating canvas %d", GetLastError());
         return false;
      }

      UpdateCanvasFont();
   }

   return true;
}

//+------------------------------------------------------------------+
//| K2>4 B5:AB0 =0 E>;AB5                                           |
//+------------------------------------------------------------------+
void CConsoleDialog::UpdateCanvas() {
// !B8@05< E>;AB F25B>< D>=0
   m_canvas.Erase(m_backgroundColor);

// ;O :064>9 AB@>:8, ?>?040NI59 2 2848<K9 480?07>=
   for (int i = m_startRow; i < MathMin(m_totalRows, m_startRow + m_visibleRows); i++) {
      // 5@Q< >G5@54=CN AB@>:C B5:AB0
      string line = m_lines[i];

      // A;8 5Q =04> ?>:07K20BL =5 A ?5@2>3> A8<2>;0, B>
      if (m_startCol > 0) {
         // K@5705< =0G0;L=K5 A8<2>;K
         line = StringSubstr(line, m_startCol);
      }

      // K2>48< AB@>:C =0 E>;AB
      m_canvas.TextOut(5, 5 + (i - m_startRow) * m_fontSymbolHeight, line, m_fontColor, TA_LEFT | TA_TOP);
   }

// K7K205< <5B>4 >B@8A>2:8 E>;AB0 =0 M:@0=5
   m_canvas.Update(true);
}


//+------------------------------------------------------------------+
//| 7<5=5=85 H@8DB0 E>;AB0                                          |
//+------------------------------------------------------------------+
void CConsoleDialog::UpdateCanvasFont() {
// #AB0=>2:0 ?0@0<5B@>2 H@8DB0 4;O 2K2>40 B5:AB0 =0 E>;AB
   m_canvas.FontSet(m_fontName, m_fontSize);

// #AB0=>2:0 =>2KE @07<5@>2 >4=>3> A8<2>;0
   m_canvas.TextSize("M", m_fontSymbolWidth, m_fontSymbolHeight);

// ?@545;O5< :>;8G5AB2> 2848<KE AB@>: 8 A8<2>;>2 2 AB@>:5 (AB>;1F>2)
   m_visibleRows = ClientAreaHeight() / m_fontSymbolHeight;
   m_visibleCols = ClientAreaWidth() / m_fontSymbolWidth;
}
//+------------------------------------------------------------------+