411 lines
13 KiB
MQL5
411 lines
13 KiB
MQL5
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//+------------------------------------------------------------------+
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//| Comment.mqh |
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//| avoitenko |
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//| https://login.mql5.com/en/users/avoitenko |
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//+------------------------------------------------------------------+
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#property copyright "avoitenko"
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#property link "https://login.mql5.com/en/users/avoitenko"
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#property version "1.00"
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#property strict
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#include <Canvas/Canvas.mqh>
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#include <Arrays/List.mqh>
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//---
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#define EVENT_NO_EVENTS 0
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#define EVENT_MOVE 1
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#define EVENT_CHANGE 2
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//+------------------------------------------------------------------+
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//| TComment |
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//+------------------------------------------------------------------+
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class TComment : public CObject
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{
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public:
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string text;
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color colour;
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};
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//+------------------------------------------------------------------+
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//| CComment |
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//+------------------------------------------------------------------+
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class CComment
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{
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private:
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CPoint m_temp;
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CCanvas m_comment;
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CPoint m_pos;
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CList m_list;
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CSize m_size;
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//---
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string m_name;
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string m_font_name;
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int m_font_size;
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bool m_font_bold;
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double m_font_interval;
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color m_border_color;
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color m_back_color;
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uchar m_back_alpha;
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bool m_graph_mode;
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bool m_auto_colors;
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color m_auto_back_color;
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color m_auto_text_color;
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color m_auto_border_color;
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color m_chart_back_color;
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//+------------------------------------------------------------------+
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color Color2Gray(const color value)
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{
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int gray=(int)round(0.3*GETRGBR(value)+0.59*GETRGBG(value)+0.11*GETRGBB(value));
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if(gray>255) gray=255;
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return((color)ARGB(0,gray,gray,gray));
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}
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//+------------------------------------------------------------------+
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uchar GrayChannel(const color value)
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{
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int gray=(int)round(0.3*GETRGBR(value)+0.59*GETRGBG(value)+0.11*GETRGBB(value));
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if(gray>255) gray=255;
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return((uchar)gray);
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}
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//+------------------------------------------------------------------+
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color Bright(const color value,const int percent)
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{
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int r,g,b;
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//---
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r=GETRGBR(value);
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g=GETRGBG(value);
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b=GETRGBB(value);
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//---
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if(percent>=0)
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{
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r+=(255-r)*percent/100;
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if(r>255)r=255;
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g+=(255-g)*percent/100;
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if(g>255)g=255;
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b+=(255-b)*percent/100;
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if(b>255)b=255;
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}
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else
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{
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r+=r*percent/100;
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if(r<0)r=0;
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g+=g*percent/100;
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if(g<0)g=0;
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b+=b*percent/100;
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if(b<0)b=0;
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}
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//---
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return(ARGB(0,r,g,b));
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}
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//+------------------------------------------------------------------+
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void CalcColors()
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{
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m_auto_back_color=(color)ChartGetInteger(0,CHART_COLOR_BACKGROUND);
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color m_back_gray=Color2Gray(m_auto_back_color);
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uchar channel=GrayChannel(m_back_gray);
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//---
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if(channel>120)
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{
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if(m_back_color==clrNONE)
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m_auto_border_color=clrNONE;
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else
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m_auto_border_color=Bright(m_back_gray,-30);
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m_auto_text_color=Bright(m_back_gray,-80);
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}
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else
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{
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if(m_back_color==clrNONE)
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m_auto_border_color=clrNONE;
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else
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m_auto_border_color=Bright(m_back_gray,30);
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m_auto_text_color=Bright(m_back_gray,80);
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}
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}
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public:
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//+------------------------------------------------------------------+
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void CComment(void)
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{
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m_name=NULL;
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m_font_name="Lucida Console";
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m_font_size=14;
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m_font_bold=false;
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m_font_interval=1.7;
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m_border_color=clrNONE;
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m_back_color=clrBlack;
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m_back_alpha=255;
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m_graph_mode=true;
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m_auto_colors=false;
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m_chart_back_color=(color)ChartGetInteger(0,CHART_COLOR_BACKGROUND);
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m_auto_back_color=clrBlack;
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m_auto_border_color=clrNONE;
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//---
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ChartSetInteger(0,CHART_EVENT_MOUSE_MOVE,true);
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};
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//+------------------------------------------------------------------+
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void Create(const string name,const uint x,const uint y)
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{
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m_name=name;
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m_pos.x=(int)x;
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m_pos.y=(int)y;
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};
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//+------------------------------------------------------------------+
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int CoordY()
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{
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return(m_pos.y);
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}
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//+------------------------------------------------------------------+
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int CoordX()
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{
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return(m_pos.x);
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}
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//+------------------------------------------------------------------+
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void Move(const uint x,const uint y)
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{
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m_pos.x=(int)x;
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m_pos.y=(int)y;
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if(ObjectGetInteger(0,m_name,OBJPROP_XDISTANCE)!=m_pos.x)
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ObjectSetInteger(0,m_name,OBJPROP_XDISTANCE,m_pos.x);
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if(ObjectGetInteger(0,m_name,OBJPROP_YDISTANCE)!=m_pos.y)
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ObjectSetInteger(0,m_name,OBJPROP_YDISTANCE,m_pos.y);
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};
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//+------------------------------------------------------------------+
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void SetAutoColors(const bool value)
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{
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m_auto_colors=value;
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if(value)
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CalcColors();
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}
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//+------------------------------------------------------------------+
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void SetGraphMode(const bool value)
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{
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m_graph_mode=value;
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};
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//+------------------------------------------------------------------+
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void SetText(const int row,const string text,const color colour)
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{
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if(row<0)
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return;
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//---
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int total=m_list.Total();
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if(row<total)
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{
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TComment *item=m_list.GetNodeAtIndex(row);
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item.text=text;
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item.colour=colour;
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}
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else
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{
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//--- create new one string
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for(int i=total; i<=row; i++)
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{
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m_list.Add(new TComment);
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TComment *item=m_list.GetLastNode();
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if(row==i)
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{
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item.text=text;
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item.colour=colour;
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}
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else
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{
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item.text="";
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item.colour=clrNONE;
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}
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}
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}
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}
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//+------------------------------------------------------------------+
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void SetFont(const string font_name,const int font_size,const bool bold,const double font_interval)
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{
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m_font_name=font_name;
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m_font_size=font_size;
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m_font_bold=bold;
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m_font_interval=font_interval;
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}
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//+------------------------------------------------------------------+
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void SetTransparency(const uchar alpha)
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{
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m_back_alpha=alpha;
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}
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//+------------------------------------------------------------------+
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void SetColor(const color border,const color back,const uchar alpha)
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{
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m_border_color=border;
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m_back_color=back;
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m_back_alpha=alpha;
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}
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//+------------------------------------------------------------------+
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void Destroy()
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{
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if(!m_graph_mode)
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Comment("");
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m_comment.Destroy();
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m_name=NULL;
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};
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//+------------------------------------------------------------------+
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void Clear()
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{
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m_list.Clear();
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};
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//+------------------------------------------------------------------+
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int OnChartEvent(const int id,const long lparam,const double dparam,const string sparam)
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{
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//--- mouse position
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CPoint p;
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p.x = (int)lparam;
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p.y = (int)dparam;
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//---
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if(id==CHARTEVENT_MOUSE_MOVE)
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{
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//--- panel size
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CSize psize;
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psize.cx=(int)ObjectGetInteger(0,m_name,OBJPROP_XSIZE);
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psize.cy=(int)ObjectGetInteger(0,m_name,OBJPROP_YSIZE);
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//--- panel position
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CPoint pan;
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pan.x=(int)ObjectGetInteger(0,m_name,OBJPROP_XDISTANCE);
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pan.y=(int)ObjectGetInteger(0,m_name,OBJPROP_YDISTANCE);
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//--- chart size
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CSize screen;
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screen.cx=(int)ChartGetInteger(0,CHART_WIDTH_IN_PIXELS);
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screen.cy=(int)ChartGetInteger(0,CHART_HEIGHT_IN_PIXELS);
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if(sparam=="1")
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{
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//---
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if(m_temp.x==-1 &&
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p.x>=pan.x && p.x<pan.x+psize.cx &&
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p.y>=pan.y && p.y<pan.y+psize.cy)
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{
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m_temp.x=p.x-pan.x;
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}
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//---
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if(m_temp.y==-1 &&
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p.x>=pan.x && p.x<pan.x+psize.cx &&
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p.y>=pan.y && p.y<pan.y+psize.cy)
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{
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m_temp.y=p.y-pan.y;
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}
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//---
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if(m_temp.x>=0 && m_temp.y>=0)
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{
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int new_x=p.x-m_temp.x;
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if(new_x>screen.cx-psize.cx)new_x=screen.cx-psize.cx;
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if(new_x<0)new_x=0;
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int new_y=p.y-m_temp.y;
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if(new_y>screen.cy-psize.cy)new_y=screen.cy-psize.cy;
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if(new_y<0)new_y=0;
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//---
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ObjectSetInteger(0,m_name,OBJPROP_XDISTANCE,new_x);
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m_pos.x=new_x;
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ObjectSetInteger(0,m_name,OBJPROP_YDISTANCE,new_y);
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m_pos.y=new_y;
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ChartSetInteger(0,CHART_MOUSE_SCROLL,false);
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#ifdef __MQL5__
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ChartRedraw();
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#endif
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return(EVENT_MOVE);
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}
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}
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else
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{
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m_temp.x=-1;
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m_temp.y=-1;
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ChartSetInteger(0,CHART_MOUSE_SCROLL,true);
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}
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}
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//---
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if(m_auto_colors && id==CHARTEVENT_CHART_CHANGE)
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{
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//--- changing background color event
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if(m_chart_back_color!=(color)ChartGetInteger(0,CHART_COLOR_BACKGROUND))
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{
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CalcColors();
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m_chart_back_color=(color)ChartGetInteger(0,CHART_COLOR_BACKGROUND);
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Show();
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return(EVENT_CHANGE);
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}
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}
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//---
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return(EVENT_NO_EVENTS);
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}
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//+------------------------------------------------------------------+
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void Show()
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{
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int rows=m_list.Total();
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//--- text mode
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if(!m_graph_mode)
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{
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string text;
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for(int i=0; i<rows; i++)
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{
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TComment *item=m_list.GetNodeAtIndex(i);
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text+="\n"+item.text;
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}
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Comment(text);
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return;
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}
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m_comment.FontSet(m_font_name,m_font_size,m_font_bold?FW_BOLD:0);
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int text_height=m_comment.TextHeight(" ");
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int max_height=(rows)*(int)round(text_height*m_font_interval)+text_height;
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//--- calc max width
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int max_width=0;
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for(int i=0; i<rows; i++)
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{
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TComment *item=m_list.GetNodeAtIndex(i);
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int width=m_comment.TextWidth(item.text);
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if(width>max_width) max_width=width;
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}
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max_width+=text_height*2;
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//--- create panel
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if(ObjectFind(0,m_name)==-1)
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{
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m_comment.CreateBitmapLabel(0,0,m_name,m_pos.x,m_pos.y,max_width,max_height,COLOR_FORMAT_ARGB_NORMALIZE);
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ObjectSetString(0,m_name,OBJPROP_TOOLTIP,"\n");
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}
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else
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{
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//--- resize panel
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if(m_comment.Height()!=max_height ||
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m_comment.Width()!=max_width)
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{
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|
|
if(!m_comment.Resize(max_width,max_height))
|
||
|
|
{
|
||
|
|
ObjectDelete(0,m_name);
|
||
|
|
ChartRedraw();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
//---
|
||
|
|
m_comment.Erase(ColorToARGB(m_auto_colors?m_auto_back_color:m_back_color,m_back_alpha));
|
||
|
|
m_comment.Rectangle(0,0,max_width-1,max_height-1,ColorToARGB(m_auto_colors?m_auto_border_color:m_border_color));
|
||
|
|
//---
|
||
|
|
int h=text_height;
|
||
|
|
for(int i=0; i<rows; i++)
|
||
|
|
{
|
||
|
|
TComment *item=m_list.GetNodeAtIndex(i);
|
||
|
|
m_comment.TextOut(text_height,h,item.text,ColorToARGB(m_auto_colors?m_auto_text_color:item.colour));
|
||
|
|
h+=(int)round(text_height*m_font_interval);
|
||
|
|
}
|
||
|
|
//---
|
||
|
|
m_comment.Update();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
//+------------------------------------------------------------------+
|