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mql-for-begginers/Include/Controls/BmpButton.mqh

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2025-07-22 18:30:17 +03:00
//+------------------------------------------------------------------+
//| BmpButton.mqh |
//| Copyright 2000-2025, MetaQuotes Ltd. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#include "WndObj.mqh"
#include <ChartObjects\ChartObjectsBmpControls.mqh>
//+------------------------------------------------------------------+
//| Class CBmpButton |
//| Usage: control that is displayed by |
//| the CChartObjectBmpLabel object |
//+------------------------------------------------------------------+
class CBmpButton : public CWndObj
{
private:
CChartObjectBmpLabel m_button; // chart object
//--- parameters of the chart object
int m_border; // border width
string m_bmp_off_name; // name of BMP file for the "OFF" state (default state)
string m_bmp_on_name; // name of BMP file for the "ON" state
string m_bmp_passive_name;
string m_bmp_active_name;
public:
CBmpButton(void);
~CBmpButton(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);
bool BmpNames(const string off="",const string on="");
string BmpOffName(void) const { return(m_bmp_off_name); }
bool BmpOffName(const string name);
string BmpOnName(void) const { return(m_bmp_on_name); }
bool BmpOnName(const string name);
string BmpPassiveName(void) const { return(m_bmp_passive_name); }
bool BmpPassiveName(const string name);
string BmpActiveName(void) const { return(m_bmp_active_name); }
bool BmpActiveName(const string name);
//--- state
bool Pressed(void) const { return(m_button.State()); }
bool Pressed(const bool pressed) { return(m_button.State(pressed)); }
//--- properties
bool Locking(void) const { return(IS_CAN_LOCK); }
void Locking(const bool locking);
protected:
//--- handlers of object settings
virtual bool OnSetZOrder(void) { return(m_button.Z_Order(m_zorder)); }
//--- internal event handlers
virtual bool OnCreate(void);
virtual bool OnShow(void);
virtual bool OnHide(void);
virtual bool OnMove(void);
virtual bool OnChange(void);
//--- <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
virtual bool OnActivate(void);
virtual bool OnDeactivate(void);
virtual bool OnMouseDown(void);
virtual bool OnMouseUp(void);
};
//+------------------------------------------------------------------+
//| Constructor |
//+------------------------------------------------------------------+
CBmpButton::CBmpButton(void) : m_border(0),
m_bmp_off_name(NULL),
m_bmp_on_name(NULL),
m_bmp_passive_name(NULL),
m_bmp_active_name(NULL)
{
}
//+------------------------------------------------------------------+
//| Destructor |
//+------------------------------------------------------------------+
CBmpButton::~CBmpButton(void)
{
}
//+------------------------------------------------------------------+
//| Create a control |
//+------------------------------------------------------------------+
bool CBmpButton::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_button.Create(chart,name,subwin,x1,y1))
return(false);
//--- call the settings handler
return(OnChange());
}
//+------------------------------------------------------------------+
//| Set border width |
//+------------------------------------------------------------------+
bool CBmpButton::Border(const int value)
{
//--- save new value of parameter
m_border=value;
//--- set up the chart object
return(m_button.Width(value));
}
//+------------------------------------------------------------------+
//| Set two images at once |
//+------------------------------------------------------------------+
bool CBmpButton::BmpNames(const string off,const string on)
{
//--- save new values of parameters
m_bmp_off_name=off;
m_bmp_on_name =on;
//--- set up the chart object
if(!m_button.BmpFileOff(off))
return(false);
if(!m_button.BmpFileOn(on))
return(false);
//--- succeed
return(true);
}
//+------------------------------------------------------------------+
//| Set image for the "OFF" state |
//+------------------------------------------------------------------+
bool CBmpButton::BmpOffName(const string name)
{
//--- save new value of parameter
m_bmp_off_name=name;
//--- set up the chart object
if(!m_button.BmpFileOff(name))
return(false);
//--- set size by image dimensions
Width(m_button.X_Size());
Height(m_button.Y_Size());
//--- succeed
return(true);
}
//+------------------------------------------------------------------+
//| Set image for the "ON" state |
//+------------------------------------------------------------------+
bool CBmpButton::BmpOnName(const string name)
{
//--- save new value of parameter
m_bmp_on_name=name;
//--- set up the chart object
if(!m_button.BmpFileOn(name))
return(false);
//--- set size by image dimensions
Width(m_button.X_Size());
Height(m_button.Y_Size());
//--- succeed
return(true);
}
//+------------------------------------------------------------------+
//| Set image for the "OFF" state (passive) |
//+------------------------------------------------------------------+
bool CBmpButton::BmpPassiveName(const string name)
{
//--- save new value of parameter
m_bmp_passive_name=name;
//--- set up the chart object
if(!IS_ACTIVE)
return(BmpOffName(name));
//--- succeed
return(true);
}
//+------------------------------------------------------------------+
//| Set image for the "OFF" state (active) |
//+------------------------------------------------------------------+
bool CBmpButton::BmpActiveName(const string name)
{
//--- save new value of parameter
m_bmp_active_name=name;
//--- set up the chart object
if(IS_ACTIVE)
return(BmpOffName(name));
//--- succeed
return(true);
}
//+------------------------------------------------------------------+
//| Locking flag |
//+------------------------------------------------------------------+
void CBmpButton::Locking(const bool flag)
{
if(flag)
PropFlagsSet(WND_PROP_FLAG_CAN_LOCK);
else
PropFlagsReset(WND_PROP_FLAG_CAN_LOCK);
}
//+------------------------------------------------------------------+
//| Create object on chart |
//+------------------------------------------------------------------+
bool CBmpButton::OnCreate(void)
{
//--- create the chart object by previously set parameters
return(m_button.Create(m_chart_id,m_name,m_subwin,m_rect.left,m_rect.top));
}
//+------------------------------------------------------------------+
//| Display object on chart |
//+------------------------------------------------------------------+
bool CBmpButton::OnShow(void)
{
return(m_button.Timeframes(OBJ_ALL_PERIODS));
}
//+------------------------------------------------------------------+
//| Hide object from chart |
//+------------------------------------------------------------------+
bool CBmpButton::OnHide(void)
{
return(m_button.Timeframes(OBJ_NO_PERIODS));
}
//+------------------------------------------------------------------+
//| Absolute movement of the chart object |
//+------------------------------------------------------------------+
bool CBmpButton::OnMove(void)
{
//--- position the chart object
return(m_button.X_Distance(m_rect.left) && m_button.Y_Distance(m_rect.top));
}
//+------------------------------------------------------------------+
//| Set up the chart object |
//+------------------------------------------------------------------+
bool CBmpButton::OnChange(void)
{
//--- set up the chart object
return(m_button.Width(m_border) && m_button.BmpFileOff(m_bmp_off_name) && m_button.BmpFileOn(m_bmp_on_name));
}
//+------------------------------------------------------------------+
//| Handler of activating the group of controls |
//+------------------------------------------------------------------+
bool CBmpButton::OnActivate(void)
{
if(m_bmp_active_name!=NULL)
BmpOffName(m_bmp_active_name);
//--- handled
return(true);
}
//+------------------------------------------------------------------+
//| Handler of deactivating the group of controls |
//+------------------------------------------------------------------+
bool CBmpButton::OnDeactivate(void)
{
if(m_bmp_passive_name!=NULL)
BmpOffName(m_bmp_passive_name);
if(!IS_CAN_LOCK)
Pressed(false);
//--- handled
return(true);
}
//+------------------------------------------------------------------+
//| Handler of click on the left mouse button |
//+------------------------------------------------------------------+
bool CBmpButton::OnMouseDown(void)
{
if(!IS_CAN_LOCK)
Pressed(!Pressed());
//--- call of the method of the parent class
return(CWnd::OnMouseDown());
}
//+------------------------------------------------------------------+
//| Handler of click on the left mouse button |
//+------------------------------------------------------------------+
bool CBmpButton::OnMouseUp(void)
{
//--- depress the button if it is not fixed
if(m_button.State() && !IS_CAN_LOCK)
m_button.State(false);
//--- call of the method of the parent class
return(CWnd::OnMouseUp());
}
//+------------------------------------------------------------------+
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