CButton

CButton 是一个简单控件, 基于 "按钮" 图表对象。

描述

CButton 的目的在于创建简单按钮。

声明

   class CButton : public CWndObj

标称库文件

   #include <Controls\Button.mqh>
继承体系   CObject       CWnd           CWndObj               CButton

下面提供的代码的结果：

类方法

创建  
创建 创建控件
状态  
Pressed 获取/设置 "按下" 属性
Locking 获取/设置 "锁定" 属性
属性改变事件处理器  
OnSetText "设置文本" 事件处理器
OnSetColor "设置颜色" 事件处理器
OnSetColorBackground "设置背景颜色" 事件处理器
OnSetColorBorder "设置边框颜色" 事件处理器
OnSetFont "设置字体" 事件处理器
OnSetFontSize "设置字号" 事件处理器
内部事件处理器  
OnCreate "创建" 事件处理器
OnShow "显示" 事件处理器
OnHide "隐藏" 事件处理器
OnMove "移动" 事件处理器
OnResize "调整大小" 事件处理器
OnMouseDown "鼠标按下" 事件处理器
OnOnMouseUp "鼠标抬起" 事件处理器
方法继承自类 CObject Prev, Prev, Next, Next, Save, Load, Type, Compare
方法继承自类 CWnd Destroy, OnMouseEvent, Name, ControlsTotal, Control, ControlFind, Rect, Left, Left, Top, Top, Right, Right, Bottom, Bottom, Width, Width, Height, Height, Size, Size, Size, Move, Move, Shift, Contains, Contains, Alignment, Align, Id, Id, IsEnabled, Enable, Disable, IsVisible, Visible, Show, Hide, IsActive, Activate, Deactivate, StateFlags, StateFlags, StateFlagsSet, StateFlagsReset, PropFlags, PropFlags, PropFlagsSet, PropFlagsReset, MouseX, MouseX, MouseY, MouseY, MouseFlags, MouseFlags, MouseFocusKill, BringToTop
方法继承自类 CWndObj OnEvent, Text, Text, Color, Color, ColorBackground, ColorBackground, ColorBorder, ColorBorder, Font, Font, FontSize, FontSize, ZOrder, ZOrder

创建按键面板的示例：

//+------------------------------------------------------------------+

//|                                               ControlsButton.mq5 |

//|                        Copyright 2017, MetaQuotes Software Corp. |

//|                                             https://www.mql5.com |

//+------------------------------------------------------------------+

#property copyright "Copyright 2017, MetaQuotes Software Corp."

#property link      "https://www.mql5.com"

#property version   "1.00"

#property description "Control Panels and Dialogs. Demonstration class CButton"

#include <Controls\Dialog.mqh>

#include <Controls\Button.mqh>

//+------------------------------------------------------------------+

//| defines                                                          |

//+------------------------------------------------------------------+

//--- indents and gaps

#define INDENT_LEFT                         (11)      // indent from left (with allowance for border width)

#define INDENT_TOP                          (11)      // indent from top (with allowance for border width)

#define INDENT_RIGHT                        (11)      // indent from right (with allowance for border width)

#define INDENT_BOTTOM                       (11)      // indent from bottom (with allowance for border width)

#define CONTROLS_GAP_X                      (5)       // gap by X coordinate

#define CONTROLS_GAP_Y                      (5)       // gap by Y coordinate

//--- for buttons

#define BUTTON_WIDTH                        (100)     // size by X coordinate

#define BUTTON_HEIGHT                       (20)      // size by Y coordinate

//--- for the indication area

#define EDIT_HEIGHT                         (20)      // size by Y coordinate

//--- for group controls

#define GROUP_WIDTH                         (150)     // size by X coordinate

#define LIST_HEIGHT                         (179)     // size by Y coordinate

#define RADIO_HEIGHT                        (56)      // size by Y coordinate

#define CHECK_HEIGHT                        (93)      // size by Y coordinate

//+------------------------------------------------------------------+

//| Class CControlsDialog                                            |

//| Usage: main dialog of the Controls application                   |

//+------------------------------------------------------------------+

class CControlsDialog : public CAppDialog

  {

private:

   CButton           m_button1;                       // the button object

   CButton           m_button2;                       // the button object

   CButton           m_button3;                       // the fixed button object



public:

                     CControlsDialog(void);

                    ~CControlsDialog(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);

   //--- chart event handler

   virtual bool      OnEvent(const int id,const long &lparam,const double &dparam,const string &sparam);



protected:

   //--- create dependent controls

   bool              CreateButton1(void);

   bool              CreateButton2(void);

   bool              CreateButton3(void);

   //--- handlers of the dependent controls events

   void              OnClickButton1(void);

   void              OnClickButton2(void);

   void              OnClickButton3(void);

  };

//+------------------------------------------------------------------+

//| Event Handling                                                   |

//+------------------------------------------------------------------+

EVENT_MAP_BEGIN(CControlsDialog)

ON_EVENT(ON_CLICK,m_button1,OnClickButton1)

ON_EVENT(ON_CLICK,m_button2,OnClickButton2)

ON_EVENT(ON_CLICK,m_button3,OnClickButton3)

EVENT_MAP_END(CAppDialog)

//+------------------------------------------------------------------+

//| Constructor                                                      |

//+------------------------------------------------------------------+

CControlsDialog::CControlsDialog(void)

  {

  }

//+------------------------------------------------------------------+

//| Destructor                                                       |

//+------------------------------------------------------------------+

CControlsDialog::~CControlsDialog(void)

  {

  }

//+------------------------------------------------------------------+

//| Create                                                           |

//+------------------------------------------------------------------+

bool CControlsDialog::Create(const long chart,const string name,const int subwin,const int x1,const int y1,const int x2,const int y2)

  {

   if(!CAppDialog::Create(chart,name,subwin,x1,y1,x2,y2))

      return(false);

//--- create dependent controls

   if(!CreateButton1())

      return(false);

   if(!CreateButton2())

      return(false);

   if(!CreateButton3())

      return(false);

//--- succeed

   return(true);

  }

//+------------------------------------------------------------------+

//| Create the "Button1" button                                      |

//+------------------------------------------------------------------+

bool CControlsDialog::CreateButton1(void)

  {

//--- coordinates

   int x1=INDENT_LEFT;

   int y1=INDENT_TOP+(EDIT_HEIGHT+CONTROLS_GAP_Y);

   int x2=x1+BUTTON_WIDTH;

   int y2=y1+BUTTON_HEIGHT;

//--- create

   if(!m_button1.Create(m_chart_id,m_name+"Button1",m_subwin,x1,y1,x2,y2))

      return(false);

   if(!m_button1.Text("Button1"))

      return(false);

   if(!Add(m_button1))

      return(false);

//--- succeed

   return(true);

  }

//+------------------------------------------------------------------+

//| Create the "Button2" button                                      |

//+------------------------------------------------------------------+

bool CControlsDialog::CreateButton2(void)

  {

//--- coordinates

   int x1=INDENT_LEFT+(BUTTON_WIDTH+CONTROLS_GAP_X);

   int y1=INDENT_TOP+(EDIT_HEIGHT+CONTROLS_GAP_Y);

   int x2=x1+BUTTON_WIDTH;

   int y2=y1+BUTTON_HEIGHT;

//--- create

   if(!m_button2.Create(m_chart_id,m_name+"Button2",m_subwin,x1,y1,x2,y2))

      return(false);

   if(!m_button2.Text("Button2"))

      return(false);

   if(!Add(m_button2))

      return(false);

//--- succeed

   return(true);

  }

//+------------------------------------------------------------------+

//| Create the "Button3" fixed button                                |

//+------------------------------------------------------------------+

bool CControlsDialog::CreateButton3(void)

  {

//--- coordinates

   int x1=INDENT_LEFT+2*(BUTTON_WIDTH+CONTROLS_GAP_X);

   int y1=INDENT_TOP+(EDIT_HEIGHT+CONTROLS_GAP_Y);

   int x2=x1+BUTTON_WIDTH;

   int y2=y1+BUTTON_HEIGHT;

//--- create

   if(!m_button3.Create(m_chart_id,m_name+"Button3",m_subwin,x1,y1,x2,y2))

      return(false);

   if(!m_button3.Text("Locked"))

      return(false);

   if(!Add(m_button3))

      return(false);

   m_button3.Locking(true);

//--- succeed

   return(true);

  }

//+------------------------------------------------------------------+

//| Event handler                                                    |

//+------------------------------------------------------------------+

void CControlsDialog::OnClickButton1(void)

  {

   Comment(__FUNCTION__);

  }

//+------------------------------------------------------------------+

//| Event handler                                                    |

//+------------------------------------------------------------------+

void CControlsDialog::OnClickButton2(void)

  {

   Comment(__FUNCTION__);

  }

//+------------------------------------------------------------------+

//| Event handler                                                    |

//+------------------------------------------------------------------+

void CControlsDialog::OnClickButton3(void)

  {

   if(m_button3.Pressed())

      Comment(__FUNCTION__+" State of the control: On");

   else

      Comment(__FUNCTION__+" State of the control: Off");

  }

//+------------------------------------------------------------------+

//| Global Variables                                                 |

//+------------------------------------------------------------------+

CControlsDialog ExtDialog;

//+------------------------------------------------------------------+

//| Expert initialization function                                   |

//+------------------------------------------------------------------+

int OnInit()

  {

//--- create application dialog

   if(!ExtDialog.Create(0,"Controls",0,40,40,380,344))

      return(INIT_FAILED);

//--- run application

   ExtDialog.Run();

//--- succeed

   return(INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//| Expert deinitialization function                                 |

//+------------------------------------------------------------------+

void OnDeinit(const int reason)

  {

//--- clear comments

   Comment("");

//--- destroy dialog

   ExtDialog.Destroy(reason);

  }

//+------------------------------------------------------------------+

//| Expert chart event function                                      |

//+------------------------------------------------------------------+

void OnChartEvent(const int id,         // event ID  

                  const long& lparam,   // event parameter of the long type

                  const double& dparam, // event parameter of the double type

                  const string& sparam) // event parameter of the string type

  {

   ExtDialog.ChartEvent(id,lparam,dparam,sparam);

  }