125 lines
5.3 KiB
MQL5
125 lines
5.3 KiB
MQL5
//+------------------------------------------------------------------+
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//| Picture.mqh |
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//| Copyright 2000-2025, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#include "WndObj.mqh"
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#include <ChartObjects\ChartObjectsBmpControls.mqh>
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//+------------------------------------------------------------------+
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//| Class CPicture |
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//| Note: image displayed by |
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//| the CChartObjectBmpLabel object |
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//+------------------------------------------------------------------+
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class CPicture : public CWndObj
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{
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private:
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CChartObjectBmpLabel m_picture; // chart object
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//--- parameters of the chart object
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int m_border; // border width
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string m_bmp_name; // filename
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public:
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CPicture(void);
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~CPicture(void);
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//--- create
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virtual bool Create(const long chart,const string name,const int subwin,const int x1,const int y1,const int x2,const int y2);
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//--- parameters of the chart object
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int Border(void) const { return(m_border); }
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bool Border(const int value);
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string BmpName(void) const { return(m_bmp_name); }
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bool BmpName(const string name);
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protected:
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//--- internal event handlers
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virtual bool OnCreate(void);
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virtual bool OnShow(void);
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virtual bool OnHide(void);
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virtual bool OnMove(void);
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virtual bool OnChange(void);
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};
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//+------------------------------------------------------------------+
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//| Constructor |
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//+------------------------------------------------------------------+
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CPicture::CPicture(void) : m_border(0),
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m_bmp_name(NULL)
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{
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}
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//+------------------------------------------------------------------+
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//| Destructor |
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//+------------------------------------------------------------------+
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CPicture::~CPicture(void)
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{
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}
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//+------------------------------------------------------------------+
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//| Create a control |
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//+------------------------------------------------------------------+
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bool CPicture::Create(const long chart,const string name,const int subwin,const int x1,const int y1,const int x2,const int y2)
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{
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//--- call method of the parent class
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if(!CWndObj::Create(chart,name,subwin,x1,y1,x2,y2))
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return(false);
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//--- create the chart object
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if(!m_picture.Create(chart,name,subwin,x1,y1))
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return(false);
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//--- call the settings handler
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return(OnChange());
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}
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//+------------------------------------------------------------------+
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//| Set border width |
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//+------------------------------------------------------------------+
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bool CPicture::Border(const int value)
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{
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//--- save new value of parameter
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m_border=value;
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//--- set up the chart object
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return(m_picture.Width(value));
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}
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//+------------------------------------------------------------------+
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//| Set image |
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//+------------------------------------------------------------------+
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bool CPicture::BmpName(const string name)
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{
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//--- save new value of parameter
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m_bmp_name=name;
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//--- set up the chart object
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return(m_picture.BmpFileOn(name));
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}
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//+------------------------------------------------------------------+
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//| Create object on chart |
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//+------------------------------------------------------------------+
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bool CPicture::OnCreate(void)
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{
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//--- create the chart object by previously set parameters
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return(m_picture.Create(m_chart_id,m_name,m_subwin,m_rect.left,m_rect.top));
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}
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//+------------------------------------------------------------------+
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//| Display object on chart |
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//+------------------------------------------------------------------+
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bool CPicture::OnShow(void)
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{
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return(m_picture.Timeframes(OBJ_ALL_PERIODS));
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}
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//+------------------------------------------------------------------+
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//| Hide object from chart |
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//+------------------------------------------------------------------+
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bool CPicture::OnHide(void)
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{
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return(m_picture.Timeframes(OBJ_NO_PERIODS));
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}
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//+------------------------------------------------------------------+
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//| Absolute movement of the chart object |
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//+------------------------------------------------------------------+
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bool CPicture::OnMove(void)
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{
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//--- position the chart object
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return(m_picture.X_Distance(m_rect.left) && m_picture.Y_Distance(m_rect.top));
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}
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//+------------------------------------------------------------------+
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//| Set up the chart object |
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//+------------------------------------------------------------------+
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bool CPicture::OnChange(void)
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{
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//--- set up the chart object
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return(m_picture.Width(m_border) && m_picture.BmpFileOn(m_bmp_name));
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}
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//+------------------------------------------------------------------+
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