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event核心[wxWidgets]_[简单应用看wx的核心原理]_#define


1.wx的核心道理和MFC差不多,其中的一部分是menu,event,thread,dc,control.

2.以下是使用和wx这些功能的例子，在MinGW(g++),msys(make)下编译.g++ 4.4,我用的eclipse CDT建的工程,单是编译的话直接用make就好了,不须要eclipse.

3.用的wxWidgets-2.9.2,核心的dll只须要3个,由于是编译了基本上全体功能和控件，所以这些库还是比较大的,不过有很大的压缩余地。也和gcc编译有关。

wxbase292u_gcc_custom.dll (6,461 kb) wxmsw292u_adv_gcc_custom.dll (5,498 kb) wxmsw292u_core_gcc_custom.dll (12,237 kb)

4.应用程序入口文件:

my_app.h

/*  * my_app.h  *  *  Created on: 2013-5-30  *  Author: Sai  */  #ifndef MY_APP_H_ #define MY_APP_H_  #include "wx/wx.h"  class MyApp: public wxApp { public:  MyApp();  virtual ~MyApp();   bool OnInit(); };  #endif /* MY_APP_H_ */

my_app.cpp

/*  * my_app.cpp  *  *  Created on: 2013-5-30  *  Author: Sai  */  #include "my_app.h" #include "my_frame.h"  IMPLEMENT_APP(MyApp)  MyApp::MyApp() {  }  MyApp::~MyApp() {  }  bool MyApp::OnInit() {  MyFrame* frame = new MyFrame();  frame->Create(wxID_ANY,wxT("infoworld"));   SetTopWindow(frame);  frame->Show(true);  return true; }

5.主窗口文件

my_frame.h

/*  * my_frame.h  *  *  Created on: 2013-5-30  *  Author: Sai  */  #ifndef MY_FRAME_H_ #define MY_FRAME_H_  #include "wx/wx.h"  /**  * Show Example  *  * 1.menu  * 2.event  * 3.thread  * 4.dc  * 5.control  */ class MyFrame : public wxFrame {  DECLARE_EVENT_TABLE()  DECLARE_DYNAMIC_CLASS(MyFrame) public:  MyFrame();  virtual ~MyFrame();  virtual bool Create(wxWindowID id, const wxString& title);  protected:  void OnQuit(wxCommandEvent& event);  void OnThread(wxCommandEvent& event);  void OnThreadUpdate(wxThreadEvent& event);  void OnPaintPanel(wxPaintEvent& event); private:  wxGauge* gauge_;  wxPanel *panel_; };  #endif /* MY_FRAME_H_ */

my_frame.cpp

/*  * my_frame.cpp  *  *  Created on: 2013-5-30  *  Author: Sai  */  #include "my_frame.h"  namespace { enum {  kGauge = 1, kButton, kThreadUpdateId }; }  class MyThread: public wxThread { public:  MyThread(MyFrame *handler) :    wxThread(wxTHREAD_DETACHED)  {   m_pHandler = handler;  }  ~MyThread()  {  }  void Execute()  {   Create();   Run();  }  protected:  virtual ExitCode Entry()  {   for (int i = 1; i < 11; ++i)   {    //1.asynchronous update,communicate with main thread.    wxThreadEvent* event = new wxThreadEvent(wxEVT_THREAD,      kThreadUpdateId);    event->SetInt(i * 10);    wxQueueEvent(m_pHandler->GetEventHandler(), event);   }   return (wxThread::ExitCode) 0;  }  MyFrame *m_pHandler; }; BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(wxID_EXIT, MyFrame::OnQuit) EVT_BUTTON(kButton, MyFrame::OnThread) EVT_THREAD(kThreadUpdateId, MyFrame::OnThreadUpdate) END_EVENT_TABLE()  IMPLEMENT_DYNAMIC_CLASS(MyFrame, wxFrame)  MyFrame::MyFrame() {  }  MyFrame::~MyFrame() {  }  bool MyFrame::Create(wxWindowID id, const wxString& title) {  if (!wxFrame::Create(NULL, id, title, wxDefaultPosition, wxSize(400, 400)))  {   return false;  }  panel_ = new wxPanel(this, wxID_ANY, wxPoint(0, 0));  panel_->SetBackgroundColour(*wxBLUE);  panel_->Connect(wxEVT_PAINT, wxPaintEventHandler(MyFrame::OnPaintPanel),    NULL, this);   //1.menubar and statusbar  wxMenu *fileMenu = new wxMenu();   (*fileMenu).Append(wxID_EXIT, wxT("&Exit\tAlt-X"),    wxT("Quit this program"));   wxMenuBar *bar = new wxMenuBar();  bar->Append(fileMenu, wxT("&File"));   SetMenuBar(bar);  CreateStatusBar();  SetStatusText(wxT("welcome to WxWidget"));   //2.button,  wxButton* button = new wxButton(panel_, kButton, wxT("wxThread"),    wxPoint(20, 20));  gauge_ = new wxGauge(panel_, kGauge, 100, wxPoint(20, 60), wxSize(200, 40),    wxGA_HORIZONTAL);  gauge_->SetValue(0);   return true; }  void MyFrame::OnPaintPanel(wxPaintEvent& event) {  wxPaintDC dc(panel_);  dc.SetPen(wxPen(*wxRED));  wxSize size = panel_->GetSize();  dc.DrawRectangle(wxRect(20, 20, size.x - 40, size.y - 40)); }  void MyFrame::OnThreadUpdate(wxThreadEvent& event) {  gauge_->SetValue(event.GetInt()); }  void MyFrame::OnThread(wxCommandEvent& event) {  wxMessageBox(wxT("Start a wxThread"), wxT("Good evening."));  MyThread* thread = new MyThread(this);  thread->Execute(); }  void MyFrame::OnQuit(wxCommandEvent& event) {  Close(); }

每日一道理

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6.值的一提的是如果要用vista以上的好看的控件样式，须要资源文件定义，再把它链接到exe里。

windres --input-format=rc -O coff -i resources/style.rc -o build/style.o --define __WXMSW__ --include-dir E:/software/Lib/gui/wxWidgets-2.9.2/include

style.rc

#include "winresrc.h"  // set this to 1 if you don't want to use manifest resource (manifest resource // is needed to enable visual styles on Windows XP - see docs/msw/winxp.txt // for more information) #define wxUSE_NO_MANIFEST 0  // this is not always needed but doesn't hurt (except making the executable // very slightly larger): this file contains the standard icons, cursors, ... #include "wx/msw/wx.rc"  LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US  //wx.rc contain .manifest,so override it. 1 RT_MANIFEST "uac.manifest"

uac.manifest

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>  <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <assemblyIdentity version="0.64.1.0" processorArchitecture="x86" name="Controls" type="win32"></assemblyIdentity> <description></description> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">    <security>     <requestedPrivileges>      <requestedExecutionLevel level="asInvoker" uiAccess="false"></requestedExecutionLevel>     </requestedPrivileges>    </security>  </trustInfo> <dependency>     <dependentAssembly>         <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="X86" publicKeyToken="6595b64144ccf1df" language="*"></assemblyIdentity>     </dependentAssembly> </dependency> </assembly>

完全程序下载地址:

文章结束给大家分享下程序员的一些笑话语录： 神灯新篇

一个程序员在海滩上发现了一盏神灯。他在灯上擦了几下，一个妖怪就从灯里跳出来说：“我是世界上法术最强的妖怪。我可以实现你的任何梦想，但现在，我只能满足你一个愿望。”程序员摊开了一幅中东地图说：“我想让中东得到永久的和平。”妖怪答道：“哦，我没办法。自打创世纪以来，那里的战火就没有停息过。这世上几乎没有我办不到的事，但这件事除外。”程序员于是说：“好吧，我是一个程序员，为许多用户编写过程序。你能让他们把需求表述得更清楚些，并且让我们的软件项目有那么一两次按进度按成本完成吗？”妖怪说：“唔，我们还是来看中东地图吧。”

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