| //+------------------------------------------------------------------+
|
| //| Label.mqh |
|
| //| Copyright 2000-2025, MetaQuotes Ltd. |
|
| //| https://www.mql5.com |
|
| //+------------------------------------------------------------------+
|
| #include "WndObj.mqh"
|
| #include <ChartObjects\ChartObjectsTxtControls.mqh>
|
| //+------------------------------------------------------------------+
|
| //| Class CLabel |
|
| //| Usage: control that is displayed by |
|
| //| the CChartObjectLabel object |
|
| //+------------------------------------------------------------------+
|
| class CLabel : public CWndObj
|
| {
|
| private:
|
| CChartObjectLabel m_label; // chart object
|
|
|
| public:
|
| CLabel(void);
|
| ~CLabel(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);
|
|
|
| protected:
|
| //--- handlers of object settings
|
| virtual bool OnSetText(void) { return(m_label.Description(m_text)); }
|
| virtual bool OnSetColor(void) { return(m_label.Color(m_color)); }
|
| virtual bool OnSetFont(void) { return(m_label.Font(m_font)); }
|
| virtual bool OnSetFontSize(void) { return(m_label.FontSize(m_font_size)); }
|
| //--- internal event handlers
|
| virtual bool OnCreate(void);
|
| virtual bool OnShow(void);
|
| virtual bool OnHide(void);
|
| virtual bool OnMove(void);
|
| };
|
| //+------------------------------------------------------------------+
|
| //| Constructor |
|
| //+------------------------------------------------------------------+
|
| CLabel::CLabel(void)
|
| {
|
| m_color=CONTROLS_LABEL_COLOR;
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Destructor |
|
| //+------------------------------------------------------------------+
|
| CLabel::~CLabel(void)
|
| {
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Create a control |
|
| //+------------------------------------------------------------------+
|
| bool CLabel::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_label.Create(chart,name,subwin,x1,y1))
|
| return(false);
|
| //--- call the settings handler
|
| return(OnChange());
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Create object on chart |
|
| //+------------------------------------------------------------------+
|
| bool CLabel::OnCreate(void)
|
| {
|
| //--- create the chart object by previously set parameters
|
| return(m_label.Create(m_chart_id,m_name,m_subwin,m_rect.left,m_rect.top));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Display object on chart |
|
| //+------------------------------------------------------------------+
|
| bool CLabel::OnShow(void)
|
| {
|
| return(m_label.Timeframes(OBJ_ALL_PERIODS));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Hide object from chart |
|
| //+------------------------------------------------------------------+
|
| bool CLabel::OnHide(void)
|
| {
|
| return(m_label.Timeframes(OBJ_NO_PERIODS));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Absolute movement of the chart object |
|
| //+------------------------------------------------------------------+
|
| bool CLabel::OnMove(void)
|
| {
|
| //--- position the chart object
|
| return(m_label.X_Distance(m_rect.left) && m_label.Y_Distance(m_rect.top));
|
| }
|
| //+------------------------------------------------------------------+
|
