use wxDC::GetMultiLineTextExtent() instead of duplicating its code in wxButton::DoGet...

[wxWidgets.git] / samples / event / event.cpp

diff --git a/samples/event/event.cpp b/samples/event/event.cpp
index 1f63f7efd164bbc0f43f7c2433765199cfa85e55..5f1426e4ef560d5a16dce0cc6a135d8055ed9d82 100644 (file)
--- a/samples/event/event.cpp
+++ b/samples/event/event.cpp
@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        event.cpp
 /////////////////////////////////////////////////////////////////////////////
 // Name:        event.cpp

-// Purpose:     wxWindows sample demonstrating different event usage
+// Purpose:     wxWidgets sample demonstrating different event usage

 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     31.01.01
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     31.01.01


@@ -17,7 +17,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(__APPLE__)

     // DO NOT use event.cpp here, it breaks statics initialization in
     // src/common/event.cpp and nothing works at all then!
     #pragma implementation "eventsample.cpp"
     // DO NOT use event.cpp here, it breaks statics initialization in
     // src/common/event.cpp and nothing works at all then!
     #pragma implementation "eventsample.cpp"


@@ -32,7 +32,7 @@
 #endif
 
 // for all others, include the necessary headers (this file is usually all you
 #endif
 
 // for all others, include the necessary headers (this file is usually all you

-// need because it includes almost all "standard" wxWindows headers)
+// need because it includes almost all "standard" wxWidgets headers)

 #ifndef WX_PRECOMP
     #include "wx/wx.h"
 #endif
 #ifndef WX_PRECOMP
     #include "wx/wx.h"
 #endif


@@ -59,8 +59,8 @@ DEFINE_EVENT_TYPE(wxEVT_MY_CUSTOM_COMMAND)
 // it may also be convenient to define an event table macro for this event type
 #define EVT_MY_CUSTOM_COMMAND(id, fn) \
     DECLARE_EVENT_TABLE_ENTRY( \
 // it may also be convenient to define an event table macro for this event type
 #define EVT_MY_CUSTOM_COMMAND(id, fn) \
     DECLARE_EVENT_TABLE_ENTRY( \

-        wxEVT_MY_CUSTOM_COMMAND, id, -1, \
-        (wxObjectEventFunction)(wxEventFunction)(wxCommandEventFunction)&fn, \
+        wxEVT_MY_CUSTOM_COMMAND, id, wxID_ANY, \
+        (wxObjectEventFunction)(wxEventFunction) wxStaticCastEvent( wxCommandEventFunction, &fn ), \

         (wxObject *) NULL \
     ),
 
         (wxObject *) NULL \
     ),
 


@@ -107,7 +107,7 @@ protected:
     size_t m_nPush;
 
 private:
     size_t m_nPush;
 
 private:

-    // any class wishing to process wxWindows events must use this macro
+    // any class wishing to process wxWidgets events must use this macro

     DECLARE_EVENT_TABLE()
 };
 
     DECLARE_EVENT_TABLE()
 };
 


@@ -159,10 +159,10 @@ enum
 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------

-// event tables and other macros for wxWindows
+// event tables and other macros for wxWidgets

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-// the event tables connect the wxWindows events with the functions (event
+// the event tables connect the wxWidgets events with the functions (event

 // handlers) which process them. It can be also done at run-time, but for the
 // simple menu events like this the static method is much simpler.
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 // handlers) which process them. It can be also done at run-time, but for the
 // simple menu events like this the static method is much simpler.
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)


@@ -178,17 +178,18 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 
     EVT_UPDATE_UI(Event_Pop, MyFrame::OnUpdateUIPop)
 
 
     EVT_UPDATE_UI(Event_Pop, MyFrame::OnUpdateUIPop)
 

-    EVT_MY_CUSTOM_COMMAND(-1, MyFrame::OnProcessCustom)
+    EVT_MY_CUSTOM_COMMAND(wxID_ANY, MyFrame::OnProcessCustom)

 
 

-    // this would also work:
-    //EVT_CUSTOM(wxEVT_MY_CUSTOM_COMMAND, -1, MyFrame::OnProcessCustom)
+    // the line below would also work if OnProcessCustom() were defined as
+    // taking a wxEvent (as required by EVT_CUSTOM) and not wxCommandEvent
+    //EVT_CUSTOM(wxEVT_MY_CUSTOM_COMMAND, wxID_ANY, MyFrame::OnProcessCustom)

 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(MyEvtHandler, wxEvtHandler)
     EVT_MENU(Event_Test, MyEvtHandler::OnTest)
 END_EVENT_TABLE()
 
 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(MyEvtHandler, wxEvtHandler)
     EVT_MENU(Event_Test, MyEvtHandler::OnTest)
 END_EVENT_TABLE()
 

-// Create a new application object: this macro will allow wxWindows to create
+// Create a new application object: this macro will allow wxWidgets to create

 // the application object during program execution (it's better than using a
 // static object for many reasons) and also declares the accessor function
 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 // the application object during program execution (it's better than using a
 // static object for many reasons) and also declares the accessor function
 // wxGetApp() which will return the reference of the right type (i.e. MyApp and


@@ -207,17 +208,17 @@ IMPLEMENT_APP(MyApp)
 bool MyApp::OnInit()
 {
     // create the main application window
 bool MyApp::OnInit()
 {
     // create the main application window

-    MyFrame *frame = new MyFrame(_T("Event wxWindows Sample"),
+    MyFrame *frame = new MyFrame(_T("Event wxWidgets Sample"),

                                  wxPoint(50, 50), wxSize(600, 340));
 
     // and show it (the frames, unlike simple controls, are not shown when
     // created initially)
                                  wxPoint(50, 50), wxSize(600, 340));
 
     // and show it (the frames, unlike simple controls, are not shown when
     // created initially)

-    frame->Show(TRUE);
+    frame->Show(true);

 
     // success: wxApp::OnRun() will be called which will enter the main message
 
     // success: wxApp::OnRun() will be called which will enter the main message

-    // loop and the application will run. If we returned FALSE here, the
+    // loop and the application will run. If we returned false here, the

     // application would exit immediately.
     // application would exit immediately.

-    return TRUE;
+    return true;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -226,7 +227,7 @@ bool MyApp::OnInit()
 
 // frame constructor
 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 
 // frame constructor
 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)

-       : wxFrame((wxFrame *)NULL, -1, title, pos, size)
+       : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size)

 {
     // init members
     m_nPush = 0;
 {
     // init members
     m_nPush = 0;


@@ -241,7 +242,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
     wxMenu *menuEvent = new wxMenu;
     menuEvent->Append(Event_Connect, _T("&Connect\tCtrl-C"),
                      _T("Connect or disconnect the dynamic event handler"),
     wxMenu *menuEvent = new wxMenu;
     menuEvent->Append(Event_Connect, _T("&Connect\tCtrl-C"),
                      _T("Connect or disconnect the dynamic event handler"),

-                     TRUE /* checkable */);
+                     true /* checkable */);

     menuEvent->Append(Event_Dynamic, _T("&Dynamic event\tCtrl-D"),
                       _T("Dynamic event sample - only works after Connect"));
     menuEvent->AppendSeparator();
     menuEvent->Append(Event_Dynamic, _T("&Dynamic event\tCtrl-D"),
                       _T("Dynamic event sample - only works after Connect"));
     menuEvent->AppendSeparator();


@@ -265,7 +266,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 
 #if wxUSE_STATUSBAR
     CreateStatusBar(3);
 
 #if wxUSE_STATUSBAR
     CreateStatusBar(3);

-    SetStatusText(_T("Welcome to wxWindows event sample"));
+    SetStatusText(_T("Welcome to wxWidgets event sample"));

     SetStatusText(_T("Dynamic: off"), Status_Dynamic);
     SetStatusText(_T("Push count: 0"), Status_Push);
 #endif // wxUSE_STATUSBAR
     SetStatusText(_T("Dynamic: off"), Status_Dynamic);
     SetStatusText(_T("Push count: 0"), Status_Push);
 #endif // wxUSE_STATUSBAR


@@ -277,7 +278,7 @@ MyFrame::~MyFrame()
     // crashes!
     while ( m_nPush-- != 0 )
     {
     // crashes!
     while ( m_nPush-- != 0 )
     {

-        PopEventHandler(TRUE /* delete handler */);
+        PopEventHandler(true /* delete handler */);

     }
 }
 
     }
 }
 


@@ -287,15 +288,15 @@ MyFrame::~MyFrame()
 
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 {
 
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 {

-    // TRUE is to force the frame to close
-    Close(TRUE);
+    // true is to force the frame to close
+    Close(true);

 }
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {
 }
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {

-    wxMessageBox(_T("Event sample shows different ways of using events\n"
-                    "© 2001 Vadim Zeitlin"),
-                 _T("About Event Sample"), wxOK | wxICON_INFORMATION, this);
+    wxMessageBox( wxT("Event sample shows different ways of using events\n")
+                  wxT("(c) 2001 Vadim Zeitlin"),
+                  wxT("About Event Sample"), wxOK | wxICON_INFORMATION, this );

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -304,9 +305,12 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 
 void MyFrame::OnDynamic(wxCommandEvent& WXUNUSED(event))
 {
 
 void MyFrame::OnDynamic(wxCommandEvent& WXUNUSED(event))
 {

-    wxMessageBox(_T("This is a dynamic event handler which can be connected "
-                    "and disconnected during run-time."),
-                 _T("Dynamic Event Handler"), wxOK | wxICON_INFORMATION, this);
+    wxMessageBox
+    (
+        wxT("This is a dynamic event handler which can be connected ")
+        wxT("and disconnected at run-time."),
+        wxT("Dynamic Event Handler"), wxOK | wxICON_INFORMATION, this
+    );

 }
 
 void MyFrame::OnConnect(wxCommandEvent& event)
 }
 
 void MyFrame::OnConnect(wxCommandEvent& event)


@@ -314,20 +318,24 @@ void MyFrame::OnConnect(wxCommandEvent& event)
     if ( event.IsChecked() )
     {
         // disconnect
     if ( event.IsChecked() )
     {
         // disconnect

-        Connect(Event_Dynamic, -1, wxEVT_COMMAND_MENU_SELECTED,
+        Connect(Event_Dynamic, wxID_ANY, wxEVT_COMMAND_MENU_SELECTED,

                 (wxObjectEventFunction)
                 (wxEventFunction)
                 (wxCommandEventFunction)&MyFrame::OnDynamic);
 
                 (wxObjectEventFunction)
                 (wxEventFunction)
                 (wxCommandEventFunction)&MyFrame::OnDynamic);
 

+#if wxUSE_STATUSBAR

         SetStatusText(_T("You can now use \"Dynamic\" item in the menu"));
         SetStatusText(_T("Dynamic: on"), Status_Dynamic);
         SetStatusText(_T("You can now use \"Dynamic\" item in the menu"));
         SetStatusText(_T("Dynamic: on"), Status_Dynamic);

+#endif // wxUSE_STATUSBAR

     }
     else // connect
     {
     }
     else // connect
     {

-        Disconnect(Event_Dynamic, -1, wxEVT_COMMAND_MENU_SELECTED);
+        Disconnect(Event_Dynamic, wxID_ANY, wxEVT_COMMAND_MENU_SELECTED);

 
 

+#if wxUSE_STATUSBAR

         SetStatusText(_T("You can no more use \"Dynamic\" item in the menu"));
         SetStatusText(_T("Dynamic: off"), Status_Dynamic);
         SetStatusText(_T("You can no more use \"Dynamic\" item in the menu"));
         SetStatusText(_T("Dynamic: off"), Status_Dynamic);

+#endif // wxUSE_STATUSBAR

     }
 }
 
     }
 }
 


@@ -339,20 +347,24 @@ void MyFrame::OnPushEventHandler(wxCommandEvent& WXUNUSED(event))
 {
     PushEventHandler(new MyEvtHandler(++m_nPush));
 
 {
     PushEventHandler(new MyEvtHandler(++m_nPush));
 

+#if wxUSE_STATUSBAR

     SetStatusText(wxString::Format(_T("Push count: %u"), m_nPush), Status_Push);
     SetStatusText(wxString::Format(_T("Push count: %u"), m_nPush), Status_Push);

+#endif // wxUSE_STATUSBAR

 }
 
 void MyFrame::OnPopEventHandler(wxCommandEvent& WXUNUSED(event))
 {
     wxCHECK_RET( m_nPush, _T("this command should be disabled!") );
 
 }
 
 void MyFrame::OnPopEventHandler(wxCommandEvent& WXUNUSED(event))
 {
     wxCHECK_RET( m_nPush, _T("this command should be disabled!") );
 

-    PopEventHandler(TRUE /* delete handler */);
+    PopEventHandler(true /* delete handler */);

     m_nPush--;
 
     m_nPush--;
 

+#if wxUSE_STATUSBAR

     SetStatusText(wxString::Format(_T("Push count: %u"), m_nPush), Status_Push);
     SetStatusText(wxString::Format(_T("Push count: %u"), m_nPush), Status_Push);

+#endif // wxUSE_STATUSBAR

 }
 
 }
 

-void MyFrame::OnTest(wxCommandEvent& event)
+void MyFrame::OnTest(wxCommandEvent& WXUNUSED(event))

 {
     wxLogMessage(_T("This is the test event handler in the main frame"));
 }
 {
     wxLogMessage(_T("This is the test event handler in the main frame"));
 }


@@ -366,14 +378,14 @@ void MyFrame::OnUpdateUIPop(wxUpdateUIEvent& event)
 // custom event methods
 // ----------------------------------------------------------------------------
 
 // custom event methods
 // ----------------------------------------------------------------------------
 

-void MyFrame::OnFireCustom(wxCommandEvent& event)
+void MyFrame::OnFireCustom(wxCommandEvent& WXUNUSED(event))

 {
     wxCommandEvent eventCustom(wxEVT_MY_CUSTOM_COMMAND);
 
     wxPostEvent(this, eventCustom);
 }
 
 {
     wxCommandEvent eventCustom(wxEVT_MY_CUSTOM_COMMAND);
 
     wxPostEvent(this, eventCustom);
 }
 

-void MyFrame::OnProcessCustom(wxCommandEvent& event)
+void MyFrame::OnProcessCustom(wxCommandEvent& WXUNUSED(event))

 {
     wxLogMessage(_T("Got a custom event!"));
 }
 {
     wxLogMessage(_T("Got a custom event!"));
 }