wxWidgets自定义按钮的方法分享！

场景:

1.现在的软件上的按钮都不是标准的按钮了，因为基本上是贴图上去的，正常情况下一种图片，鼠标移上去之后按钮显示另一种效果，按下去之后又是另一种效果。

2.wx的做法其实和mfc的按钮原理是一样的，就是给按钮贴图和重绘背景。

以下是源文件.

dh_bitmap_button.h

  /*   * File:  dh_bitmap_button.h   * Author: Sai   *   * Created on 2009年12月29日, 下午4:08   */     #ifndef _DH_BITMAP_BUTTON_H  #define _DH_BITMAP_BUTTON_H     #include "wx/wx.h"     enum DhBitmapButtonStatus  {    kDhBitmapButtonNormal,    kDhBitmapButtonEnter,    kDhBitmapButtonDown,    kDhBitmapButtonUp,    kDhBitmapButtonLeave,    kDhBitmapButtonDClick,    kDhBitmapButtonDisable  };     class DhBitmapButton : public wxControl  {    DECLARE_DYNAMIC_CLASS(DhBitmapButton)    DECLARE_EVENT_TABLE()  public:    DhBitmapButton();    virtual ~DhBitmapButton();       DhBitmapButton(wxWindow* parent, wxWindowID id,        const wxPoint& pos = wxDefaultPosition,        const wxSize& size = wxDefaultSize,        long style = wxBORDER_NONE,        const wxValidator& validator = wxDefaultValidator);    bool Create(wxWindow* parent, wxWindowID id,        const wxPoint& pos = wxDefaultPosition,        const wxSize& size = wxDefaultSize,        long style = wxSUNKEN_BORDER,        const wxValidator& validator = wxDefaultValidator);       wxSize DoGetBestSize() const;    void OnPaint(wxPaintEvent& event);    virtual void OnEnter(wxMouseEvent& event);    virtual void OnLeave(wxMouseEvent& event);    virtual void OnDown(wxMouseEvent& event);    virtual void OnDClick(wxMouseEvent& event);    virtual void OnUp(wxMouseEvent& event);    virtual bool Enable(bool enable = true);    virtual bool Disable();    /**     * 设置正常图片     *     * @param bitmap     */    DhBitmapButton* set_normal_bitmap(wxBitmap* bitmap);       /**     * 1.设置按钮按下时的切换图片     */    DhBitmapButton* set_down_bitmap(wxBitmap* bitmap);       /**     * 1.设置按钮按经过时的切换图片     */    DhBitmapButton* set_enter_bitmap(wxBitmap* bitmap);       /**     * 1.设置Disable图片.     *     * @param bitmap     * @return this     */    DhBitmapButton* set_disable_bitmap(wxBitmap* bitmap);       DhBitmapButton* set_background(const wxBitmap& bitmap);       bool SetBackgroundColour(const wxColour& colour);     protected:    void DrawExistBitmap(wxDC* dc,wxBitmap* image1,wxBitmap* exist_image);     private:    wxBitmap background_;    bool is_used_bg_;       wxBitmap* normal_bitmap_;    wxBitmap* down_bitmap_;    wxBitmap* enter_bitmap_;    wxBitmap* disable_bitmap_;       int button_status_;    wxString text_;    wxFont text_font_;       void DrawBackground(wxDC* dc);     };  #endif /* _DH_BITMAP_BUTTON_H */

dh_bitmap_button.cpp

  /*   * File:  DhBitmapButton.cpp   * Author: Sai   *   * Created on 2009年12月29日, 下午4:08   */     #include "dh_bitmap_button.h"     BEGIN_EVENT_TABLE(DhBitmapButton, wxControl)  EVT_PAINT(DhBitmapButton::OnPaint)  EVT_ENTER_WINDOW(DhBitmapButton::OnEnter)  EVT_LEAVE_WINDOW(DhBitmapButton::OnLeave)  EVT_LEFT_DOWN(DhBitmapButton::OnDown)  EVT_LEFT_DCLICK(DhBitmapButton::OnDClick)  EVT_LEFT_UP(DhBitmapButton::OnUp)  END_EVENT_TABLE()     IMPLEMENT_DYNAMIC_CLASS(DhBitmapButton, wxControl)     DhBitmapButton::DhBitmapButton()  {  }     DhBitmapButton::DhBitmapButton(wxWindow* parent, wxWindowID id,      const wxPoint& pos,      const wxSize& size,      long style,      const wxValidator& validator)  : normal_bitmap_(NULL), down_bitmap_(NULL), enter_bitmap_(NULL)  {    Create(parent, id, pos, size, style, validator);  }     DhBitmapButton::~DhBitmapButton()  {    wxDELETE(normal_bitmap_);    wxDELETE(enter_bitmap_);    wxDELETE(down_bitmap_);  }     bool DhBitmapButton::Create(wxWindow* parent, wxWindowID id,      const wxPoint& pos,      const wxSize& size,      long style,      const wxValidator& validator)  {    normal_bitmap_ = NULL;    down_bitmap_ = NULL;    enter_bitmap_ = NULL;    disable_bitmap_ = NULL;       if (!wxControl::Create(parent, id, pos, size, style, validator))    {      return false;    }    SetBackgroundStyle(wxBG_STYLE_PAINT);    is_used_bg_ = false;    return true;  }     wxSize DhBitmapButton::DoGetBestSize() const  {    return GetSize();  }     void DhBitmapButton::DrawExistBitmap(wxDC* dc, wxBitmap* image1,      wxBitmap* exist_image)  {    if (image1)    {      dc->DrawBitmap(*image1, 0, 0, true);       } else    {      dc->DrawBitmap(*exist_image, 0, 0, true);    }  }     void DhBitmapButton::OnPaint(wxPaintEvent& event)  {    wxPaintDC dc(this);    DrawBackground(&dc);    //1.状态控制绘画,好处就是可以调用Refresh连背景一起刷新.    switch (button_status_)    {      case kDhBitmapButtonNormal:        dc.DrawBitmap(*normal_bitmap_, 0, 0, true);        break;      case kDhBitmapButtonEnter:        if (!enter_bitmap_)        {          int width = DoGetBestSize().GetWidth();          int height = DoGetBestSize().GetHeight();          wxClientDC dc(this);          dc.SetPen(*wxRED_PEN);          dc.SetBrush(*wxTRANSPARENT_BRUSH);             dc.DrawRectangle(0, 0, width, height);          break;        }        dc.DrawBitmap(*enter_bitmap_, 0, 0, true);        break;      case kDhBitmapButtonDown:        DrawExistBitmap(&dc,down_bitmap_,normal_bitmap_);        break;      case kDhBitmapButtonUp:       dc.DrawBitmap(*normal_bitmap_, 0, 0, true);        break;      case kDhBitmapButtonLeave:        dc.DrawBitmap(*normal_bitmap_, 0, 0, true);        break;      case kDhBitmapButtonDClick:        DrawExistBitmap(&dc,down_bitmap_,normal_bitmap_);        break;      case kDhBitmapButtonDisable:        DrawExistBitmap(&dc,disable_bitmap_,normal_bitmap_);        break;      default:        dc.DrawBitmap(*normal_bitmap_, 0, 0, true);        break;    }     }     void DhBitmapButton::DrawBackground(wxDC* dc)  {    if (is_used_bg_)    {      dc->DrawBitmap(background_, 0, 0, true);    } else    {      wxBrush brush(GetBackgroundColour());      wxPen pen(GetBackgroundColour());      dc->SetBrush(brush);      dc->SetPen(pen);      dc->DrawRectangle(0, 0, GetSize().x, GetSize().y);    }  }     void DhBitmapButton::OnEnter(wxMouseEvent& event)  {    button_status_ = kDhBitmapButtonEnter;    Refresh();    Update();  }     void DhBitmapButton::OnLeave(wxMouseEvent& event)  {    if (!IsEnabled())    {      return;    }    button_status_ = kDhBitmapButtonLeave;    Refresh();    Update();  }     void DhBitmapButton::OnDClick(wxMouseEvent& event)  {    button_status_ = kDhBitmapButtonDown;    Refresh(false);    Update();  }     void DhBitmapButton::OnDown(wxMouseEvent& event)  {    button_status_ = kDhBitmapButtonDown;    Refresh();    Update();  }     void DhBitmapButton::OnUp(wxMouseEvent& event)  {    if (kDhBitmapButtonDown != button_status_)    {      return;    }    button_status_ = kDhBitmapButtonUp;    Refresh();    Update();    wxCommandEvent myEvent(wxEVT_COMMAND_BUTTON_CLICKED, GetId());    myEvent.SetEventObject(this);    GetEventHandler()->ProcessEvent(myEvent);  }     DhBitmapButton* DhBitmapButton::set_normal_bitmap(wxBitmap* bitmap)  {    normal_bitmap_ = bitmap;    return this;  }     DhBitmapButton* DhBitmapButton::set_down_bitmap(wxBitmap* bitmap)  {    down_bitmap_ = bitmap;    return this;  }     DhBitmapButton* DhBitmapButton::set_enter_bitmap(wxBitmap* bitmap)  {    enter_bitmap_ = bitmap;    return this;  }     bool DhBitmapButton::Enable(bool enable)  {    if (enable)    {      button_status_ = kDhBitmapButtonNormal;    } else    {      button_status_ = kDhBitmapButtonDisable;    }       Refresh(false);    Update();    return wxControl::Enable(enable);  }     bool DhBitmapButton::Disable()  {    return Enable(false);  }     DhBitmapButton* DhBitmapButton::set_disable_bitmap(wxBitmap* bitmap)  {    disable_bitmap_ = bitmap;    return this;  }     DhBitmapButton* DhBitmapButton::set_background(const wxBitmap& bitmap)  {    is_used_bg_ = true;    background_ = bitmap;    return this;  }     bool DhBitmapButton::SetBackgroundColour(const wxColour& colour)  {    is_used_bg_ = false;    return wxControl::SetBackgroundColour(colour);  }

调用方式和wxButton一样.

1.先注册事件映射宏.

  EVT_BUTTON(Minimal_StartSimplePopup, MyFrame::OnStartSimplePopup)

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