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