MultiSymbolSignals/Include/MultiSymbol/SetDeleteObjects.mqh

<EFBFBD><EFBFBD>//--- !2O7L A >A=>2=K< D09;>< 8=48:0B>@0
//#include "..\MultiSymbolPriceDivergence.mq5"
//--- >4:;NG05< A2>8 181;8>B5:8
#include "Checks.mqh"
#include "SettingChart.mqh"
//+------------------------------------------------------------------+
//| #AB0=>28BL :0=2C                                                 |
//+------------------------------------------------------------------+
void SetCanvas()
  {
//--- A;8 :0=2K =5B, CAB0=>28< 5Q
   if(ObjectFind(0,canvas_name)<0)
     {
      //--- !>74048< :0=2C
      canvas.CreateBitmapLabel(0,number_window,canvas_name,0,0,chart_width,chart_height,clr_format);
      //--- !45;05< :0=2C ?>;=>ABLN ?@>7@0G=>9
      canvas.Erase(ColorToARGB(canvas_bg_color,0));
      //--- 1=>28< :0=2C
      canvas.Update();
     }
  }
//+------------------------------------------------------------------+
//| 7<5=O5B @07<5@ :0=2K                                            |
//+------------------------------------------------------------------+
void ResizeCanvas()
  {
//--- A;8 :0=20 5ABL 2 ?>4>:=5 8=48:0B>@0, CAB0=>28< =>2K9 @07<5@
   if(ObjectFind(0,canvas_name)==number_window)
      canvas.Resize(chart_width,chart_height);
  }
//+------------------------------------------------------------------+
//| K2>48B A>>1I5=85 2 :0=25                                        |
//+------------------------------------------------------------------+
void ShowCanvasMessage(string message_text)
  {
   SetSubwindowProperties();
//--- A;8 :0=20 5ABL =0 3@0D8:5
   if(ObjectFind(0,canvas_name)==number_window)
     {
      //--- B>1@078< A>>1I5=85,
      //    5A;8 ?5@540=0 =5 ?CAB0O AB@>:0 8 :>>@48=0BK ?>;CG5=K
      if(message_text!="" && chart_wcenter>0 && chart_vcenter>0)
        {
         canvas.Erase(ColorToARGB(canvas_bg_color,canvas_opacity));
         canvas.TextOut(chart_wcenter,chart_vcenter,message_text,ColorToARGB(clrRed),TA_CENTER|TA_VCENTER);
         canvas.Update();
        }
     }
  }
//+------------------------------------------------------------------+
//| #AB0=02;8205B 25@B8:0;L=CN ;8=8N 4;O =0G0;L=>9 B>G:8 F5=         |
//+------------------------------------------------------------------+
void SetLineStartPricesDivergence()
  {
//--- A;8 25@B8:0;L=>9 ;8=88 =5B, CAB0=>28< 5Q
   if(StartPriceDivergence==VERT_LINE && 
      ObjectFind(0,start_price_divergence)<0)
      //--- #AB0=>28< 25@B8:0;L=CN ;8=8N =0 8AB8==>< 10@5
      CreateVerticalLines(0,0,TimeCurrent()+PeriodSeconds(),start_price_divergence,
                          2,STYLE_SOLID,clrGreenYellow,true,true,false,"","\n");
//--- A;8 =5 2 @568<5 25@B8:0;L=>9 ;8=88
   if(StartPriceDivergence!=VERT_LINE)
      DeleteObjectByName(start_price_divergence);
  }
//+------------------------------------------------------------------+
//| #40;O5B :0=2C                                                    |
//+------------------------------------------------------------------+
void DeleteCanvas()
  {
//--- #40;8< :0=2C, 5A;8 >=0 5ABL
   if(ObjectFind(0,canvas_name)==0)
     {
      //--- 5@54 C40;5=85< ?@>87254Q< MDD5:B 8AG570=8O
      for(int i=canvas_opacity; i>0; i-=5)
        {
         canvas.Erase(ColorToARGB(canvas_bg_color,(uchar)i));
         canvas.Update();
        }
      //--- #40;5=85 :0=2K
      canvas.Destroy();
     }
  }
//+------------------------------------------------------------------+
//| #40;O5B 25@B8:0;L=K5 ;8=88 =0G0;0 A5@89                          |
//+------------------------------------------------------------------+
void DeleteVerticalLines()
  {
   string object_name      =""; // <O >1J5:B0
   int    total_vert_lines =0;  // 1I55 :>;8G5AB2> ;8=89
//--- >;CG8< :>;8G5AB2> 25@B8:0;L=KE ;8=89
   total_vert_lines=ObjectsTotal(0,0,OBJ_VLINE);
//--- #40;8< B>;L:> B5, :>B>@K5 1K;8 CAB0=>2;5=K MB>9 ?@>3@0<<>9
   for(int i=total_vert_lines-1; i>=0; i--)
     {
      //--- >;CG8< 8<O >1J5:B0
      for(int j=0; j<5; j++)
         if((object_name=ObjectName(0,i))!="")
            break;
      //--- A;8 2 8<5=8 5ABL ?@5D8:A 8=48:0B>@0, C40;8< >1J5:B
      if(StringFind(object_name,prefix,0)>-1)
         DeleteObjectByName(object_name);
     }
  }
//+------------------------------------------------------------------+
//| #40;O5B >1J5:B ?> 8<5=8                                          |
//+------------------------------------------------------------------+
void DeleteObjectByName(string Name)
  {
//--- A;8 5ABL B0:>9 >1J5:B
   if(ObjectFind(0,Name)>=0)
     {
      //--- A;8 1K;0 >H81:0 ?@8 C40;5=88, A>>1I8< >1 MB><
      if(!ObjectDelete(0,Name))
         Print("H81:0 ("+IntegerToString(GetLastError())+") ?@8 C40;5=88 >1J5:B0!");
     }
  }
//+------------------------------------------------------------------+
//| !>740=85 25@B8:0;L=>9 ;8=88                                      |
//+------------------------------------------------------------------+
void CreateVerticalLines(long            chart_id,         // id 3@0D8:0
                         int             number_win,       // =><5@ >:=0
                         datetime        time,             // 2@5<O
                         string          name_line,        // 8<O >1J5:B0
                         int             width_line,       // B>;I8=0 ;8=88
                         ENUM_LINE_STYLE style_line,       // AB8;L ;8=88
                         color           color_line,       // F25B ;8=88
                         bool            selected,         // 2K45;5==K9 >1J5:B
                         bool            selectable,       // =5;L7O 2K45;8BL >1J5:B, 5A;8 FALSE
                         bool            back,             // CAB0=>28BL D>=>2K<
                         string          description_text, // B5:AB >?8A0=8O
                         string          tooltip)          // =5B 2A?;K20NI59 ?>4A:07:8, 5A;8 "\n"
  {
//--- A;8 >1J5:B CA?5H=> A>740=...
   if(ObjectCreate(chart_id,name_line,OBJ_VLINE,number_win,time,0))
     {
      // ...CAB0=>28< 5<C A2>9AB20
      ObjectSetInteger(chart_id,name_line,OBJPROP_TIME,time);
      ObjectSetInteger(chart_id,name_line,OBJPROP_STYLE,style_line);
      ObjectSetInteger(chart_id,name_line,OBJPROP_WIDTH,width_line);
      ObjectSetInteger(chart_id,name_line,OBJPROP_COLOR,color_line);
      ObjectSetInteger(chart_id,name_line,OBJPROP_SELECTABLE,selectable);
      ObjectSetInteger(chart_id,name_line,OBJPROP_SELECTED,selected);
      ObjectSetInteger(chart_id,name_line,OBJPROP_BACK,back);
      ObjectSetString(chart_id,name_line,OBJPROP_TEXT,description_text);
      ObjectSetString(chart_id,name_line,OBJPROP_TOOLTIP,tooltip);
     }
  }
//+------------------------------------------------------------------+