samples/dynamic/dynamic.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dynamic.cpp
   3 // Purpose:     Dynamic events wxWidgets sample
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20 #include "wx/wx.h"
  21 #endif
  22
  23 #include "wx/clntdata.h"
  24
  25 #ifndef __WXMSW__
  26 #include "mondrian.xpm"
  27 #endif
  28
  29 // Define a new application type
  30 class MyApp: public wxApp
  31 {
  32 public:
  33     bool OnInit(void);
  34 };
  35
  36 // Define a new frame type
  37 class MyFrame: public wxFrame
  38 {
  39 public:
  40     MyFrame(wxFrame *frame, wxChar *title, int x, int y, int w, int h);
  41
  42 public:
  43     void OnQuit(wxCommandEvent& event);
  44     void OnTest(wxCommandEvent& event);
  45     void OnAbout(wxCommandEvent& event);
  46
  47 protected:
  48     wxShadowObject m_shadow;
  49 };
  50
  51 // Define another new frame type
  52 class MySecondFrame: public MyFrame
  53 {
  54 public:
  55     MySecondFrame(wxFrame *frame, wxChar *title, int x, int y, int w, int h);
  56 };
  57
  58 // ID for the menu commands
  59 #define DYNAMIC_QUIT   wxID_EXIT
  60 #define DYNAMIC_TEST   101
  61 #define DYNAMIC_ABOUT  wxID_ABOUT
  62
  63 // Create a new application object
  64 IMPLEMENT_APP  (MyApp)
  65
  66 // `Main program' equivalent, creating windows and returning main app frame
  67 bool MyApp::OnInit(void)
  68 {
  69     if ( !wxApp::OnInit() )
  70         return false;
  71
  72     // Create the main frame window
  73     MyFrame *frame = new MyFrame(NULL, _T("Dynamic wxWidgets App"), 50, 50, 450, 340);
  74
  75     // Show the frame
  76     frame->Show(true);
  77
  78     // Create the main frame window
  79     MySecondFrame *frame2 = new MySecondFrame(NULL, _T("Dynamic wxWidgets App"), 150, 150, 450, 340);
  80
  81     // Show the frame
  82     frame2->Show(true);
  83
  84     SetTopWindow(frame);
  85
  86     return true;
  87 }
  88
  89 // -------------------------------------
  90 // MyFrame
  91 // -------------------------------------
  92
  93 // Callback from wxShadowObject
  94
  95 int cb_MyFrame_InitStatusbar( void* window, void* WXUNUSED(param) )
  96 {
  97     MyFrame *frame = (MyFrame*) window;
  98     frame->SetStatusText( wxT("Hello from MyFrame"), 0 );
  99     return 0;
 100 }
 101
 102 // My frame constructor
 103 MyFrame::MyFrame(wxFrame *frame, wxChar *title, int x, int y, int w, int h):
 104   wxFrame(frame, wxID_ANY, title, wxPoint(x, y), wxSize(w, h))
 105 {
 106     // Give it an icon
 107 #ifdef __WXMSW__
 108     SetIcon(wxIcon(_T("mondrian")));
 109 #else
 110     SetIcon(wxIcon(mondrian_xpm));
 111 #endif
 112
 113     // Make a menubar
 114     wxMenu *file_menu = new wxMenu;
 115
 116     file_menu->Append(DYNAMIC_ABOUT, _T("&About"));
 117     file_menu->Append(DYNAMIC_TEST, _T("&Test"));
 118     file_menu->Append(DYNAMIC_QUIT, _T("E&xit"));
 119     wxMenuBar *menu_bar = new wxMenuBar;
 120     menu_bar->Append(file_menu, _T("&File"));
 121     SetMenuBar(menu_bar);
 122
 123     // Make a panel with a message
 124     wxPanel *panel = new wxPanel(this, wxID_ANY, wxPoint(0, 0), wxSize(400, 200), wxTAB_TRAVERSAL);
 125
 126     (void)new wxStaticText(panel, 311, _T("Hello!"), wxPoint(10, 10), wxDefaultSize, 0);
 127
 128     // You used to have to do some casting for param 4, but now there are type-safe handlers
 129     Connect( DYNAMIC_QUIT,  wxID_ANY,
 130                     wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(MyFrame::OnQuit) );
 131     Connect( DYNAMIC_TEST, wxID_ANY,
 132                     wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(MyFrame::OnTest) );
 133     Connect( DYNAMIC_ABOUT, wxID_ANY,
 134                     wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(MyFrame::OnAbout) );
 135
 136     CreateStatusBar();
 137     m_shadow.AddMethod( wxT("OnTest"), &cb_MyFrame_InitStatusbar );
 138 }
 139
 140 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
 141 {
 142     Close(true);
 143 }
 144
 145 void MyFrame::OnTest(wxCommandEvent& WXUNUSED(event) )
 146 {
 147     m_shadow.InvokeMethod( wxT("OnTest"), this, NULL, NULL );
 148 }
 149
 150 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 151 {
 152     wxMessageDialog dialog(this, _T("This demonstrates dynamic event handling"),
 153         _T("About Dynamic"), wxYES_NO|wxCANCEL);
 154
 155     dialog.ShowModal();
 156 }
 157
 158
 159 // -------------------------------------
 160 // MySecondFrame
 161 // -------------------------------------
 162
 163 // Callback from wxShadowObject
 164
 165 int cb_MySecondFrame_InitStatusbar( void* window, void* WXUNUSED(param) )
 166 {
 167     MySecondFrame *frame = (MySecondFrame*) window;
 168     frame->SetStatusText( wxT("Hello from MySecondFrame"), 0 );
 169     return 0;
 170 }
 171
 172 // My frame constructor
 173 MySecondFrame::MySecondFrame(wxFrame *frame, wxChar *title, int x, int y, int w, int h):
 174   MyFrame(frame, title, x, y, w, h )
 175 {
 176     m_shadow.AddMethod( wxT("OnTest"), &cb_MySecondFrame_InitStatusbar );
 177 }