paint background by default to avoid unexpected sample appearance

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

diff --git a/samples/caret/caret.cpp b/samples/caret/caret.cpp
index 4fbef96b2acabe7d64c0a2708379825270fdead3..a519db7faad9b39505b475d37406965714d67f4a 100644 (file)
--- a/samples/caret/caret.cpp
+++ b/samples/caret/caret.cpp
@@ -17,14 +17,14 @@
 #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"
-
     #include "wx/log.h"
 #endif
 
 #include "wx/caret.h"
+#include "wx/numdlg.h"
 
 // ----------------------------------------------------------------------------
 // ressources
@@ -127,7 +127,7 @@ public:
 private:
     MyCanvas *m_canvas;
 
-    // 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()
 };
 
@@ -150,10 +150,10 @@ 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)
@@ -164,7 +164,7 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU(Caret_Move, MyFrame::OnCaretMove)
 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
@@ -182,16 +182,19 @@ IMPLEMENT_APP(MyApp)
 // `Main program' equivalent: the program execution "starts" here
 bool MyApp::OnInit()
 {
+    if ( !wxApp::OnInit() )
+        return false;
+
     // create and show the main application window
-    MyFrame *frame = new MyFrame(_T("Caret wxWindows sample"),
+    MyFrame *frame = new MyFrame(_T("Caret wxWidgets sample"),
                                  wxPoint(50, 50), wxSize(450, 340));
 
-    frame->Show(TRUE);
+    frame->Show(true);
 
     // 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.
-    return TRUE;
+    return true;
 }
 
 // ----------------------------------------------------------------------------
@@ -200,7 +203,7 @@ bool MyApp::OnInit()
 
 // 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)
 {
     // set the frame icon
     SetIcon(wxICON(mondrian));
@@ -225,9 +228,11 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
     
     m_canvas = new MyCanvas(this);
 
+#if wxUSE_STATUSBAR
     // create a status bar just for fun (by default with 1 pane only)
     CreateStatusBar(2);
-    SetStatusText(_T("Welcome to wxWindows!"));
+    SetStatusText(_T("Welcome to wxWidgets!"));
+#endif // wxUSE_STATUSBAR
 }
 
 
@@ -235,13 +240,13 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 
 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))
 {
-    wxMessageBox(_T("The caret wxWindows sample.\n© 1999 Vadim Zeitlin"),
+    wxMessageBox(_T("The caret wxWidgets sample.\n(c) 1999 Vadim Zeitlin"),
                  _T("About Caret"), wxOK | wxICON_INFORMATION, this);
 }
 
@@ -298,7 +303,7 @@ BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
 END_EVENT_TABLE()
 
 MyCanvas::MyCanvas( wxWindow *parent )
-        : wxScrolledWindow( parent, -1,
+        : wxScrolledWindow( parent, wxID_ANY,
                             wxDefaultPosition, wxDefaultSize,
                             wxSUNKEN_BORDER )
 {
@@ -385,15 +390,16 @@ void MyCanvas::ChangeSize()
     free(m_text);
     m_text = (wxChar *)calloc(m_xChars * m_yChars, sizeof(wxChar));
 
+#if wxUSE_STATUSBAR
     wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
 
     if ( frame && frame->GetStatusBar() )
     {
         wxString msg;
         msg.Printf(_T("Panel size is (%d, %d)"), m_xChars, m_yChars);
-
         frame->SetStatusText(msg, 1);
     }
+#endif // wxUSE_STATUSBAR
 }
 
 // NB: this method is horrible inefficient especially because the caret