EasyAndFastMod/Controls/TextLabel.mqh

<EFBFBD><EFBFBD>//+------------------------------------------------------------------+
//|                                                    TextLabel.mqh |
//|                        Copyright 2016, MetaQuotes Software Corp. |
//|                                              http://www.mql5.com |
//+------------------------------------------------------------------+
#include "..\Element.mqh"
//+------------------------------------------------------------------+
//| ;0AA 4;O A>740=8O B5:AB>2>9 <5B:8                               |
//+------------------------------------------------------------------+
class CTextLabel : public CElement
  {
public:
                     CTextLabel(void);
                    ~CTextLabel(void);
   //--- 5B>4K 4;O A>740=8O B5:AB2>9 <5B:8
   bool              CreateTextLabel(const string text,const int x_gap,const int y_gap);
   //---
private:
   void              InitializeProperties(const string text,const int x_gap,const int y_gap);
   bool              CreateCanvas(void);
   //---
public:
   //---  8AC5B M;5<5=B
   virtual void      Draw(void);
  };
//+------------------------------------------------------------------+
//| Constructor                                                      |
//+------------------------------------------------------------------+
CTextLabel::CTextLabel(void)
  {
//--- !>E@0=8< 8<O :;0AA0 M;5<5=B0 2 107>2>< :;0AA5
   CElementBase::ClassName(CLASS_NAME);
  }
//+------------------------------------------------------------------+
//| Destructor                                                       |
//+------------------------------------------------------------------+
CTextLabel::~CTextLabel(void)
  {
  }
//+------------------------------------------------------------------+
//| !>740QB 3@C??C >1J5:B>2 B5:AB>2>3> ?>;O 22>40                    |
//+------------------------------------------------------------------+
bool CTextLabel::CreateTextLabel(const string text,const int x_gap,const int y_gap)
  {
//--- K9B8, 5A;8 =5B C:070B5;O =0 3;02=K9 M;5<5=B
   if(!CElement::CheckMainPointer())
      return(false);
//--- =8F80;870F8O A2>9AB2
   InitializeProperties(text,x_gap,y_gap);
//--- !>740=85 M;5<5=B0
   if(!CreateCanvas())
      return(false);
//---
   return(true);
  }
//+------------------------------------------------------------------+
//| =8F80;870F8O A2>9AB2                                            |
//+------------------------------------------------------------------+
void CTextLabel::InitializeProperties(const string text,const int x_gap,const int y_gap)
  {
   m_x          =CElement::CalculateX(x_gap);
   m_y          =CElement::CalculateY(y_gap);
   m_x_size     =(m_x_size<1)? 100 : m_x_size;
   m_y_size     =(m_y_size<1)? 20 : m_y_size;
   m_label_text =text;
//--- &25B D>=0 ?> C<>;G0=8N
   m_back_color=(m_back_color!=clrNONE)? m_back_color : m_main.BackColor();
//--- BABC?K 8 F25B B5:AB>2>9 <5B:8
   m_label_color =(m_label_color!=clrNONE)? m_label_color : clrBlack;
   m_label_x_gap =(m_label_x_gap!=WRONG_VALUE)? m_label_x_gap : 0;
   m_label_y_gap =(m_label_y_gap!=WRONG_VALUE)? m_label_y_gap : 0;
//--- BABC?K >B :@09=59 B>G:8
   CElementBase::XGap(x_gap);
   CElementBase::YGap(y_gap);
  }
//+------------------------------------------------------------------+
//| !>740QB >1J5:B 4;O @8A>20=8O                                     |
//+------------------------------------------------------------------+
bool CTextLabel::CreateCanvas(void)
  {
//--- $>@<8@>20=85 8<5=8 >1J5:B0
   string name=CElementBase::ElementName("text_label");
//--- !>740=85 >1J5:B0
   if(!CElement::CreateCanvas(name,m_x,m_y,m_x_size,m_y_size))
      return(false);
//---
   ShowTooltip(true);
   return(true);
  }
//+------------------------------------------------------------------+
//|  8AC5B M;5<5=B                                                   |
//+------------------------------------------------------------------+
void CTextLabel::Draw(void)
  {
//--- 0@8A>20BL D>=
   CElement::DrawBackground();
//--- 0@8A>20BL :0@B8=:C
   CElement::DrawImage();
//--- 0@8A>20BL B5:AB
   CElement::DrawText();
  }
//+------------------------------------------------------------------+