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

[wxWidgets.git] / samples / png / pngdemo.cpp

diff --git a/samples/png/pngdemo.cpp b/samples/png/pngdemo.cpp
index 8c5113de13624acefd2e7f004e9d1a344079b3ac..5ae070ba07bdb682c2e8650565820252ce50bd60 100644 (file)
--- a/samples/png/pngdemo.cpp
+++ b/samples/png/pngdemo.cpp
@@ -29,10 +29,6 @@ wxBitmap  *g_TestBitmap = (wxBitmap *) NULL;
 
 IMPLEMENT_APP(MyApp)
 
-MyApp::MyApp()
-{
-}
-
 bool MyApp::OnInit(void)
 {
   wxImage::AddHandler(new wxPNGHandler);
@@ -40,8 +36,10 @@ bool MyApp::OnInit(void)
   // Create the main frame window
   frame = new MyFrame((wxFrame *) NULL, _T("wxPNGBitmap Demo"), wxPoint(0, 0), wxSize(300, 300));
 
+#if wxUSE_STATUSBAR
   // Give it a status line
   frame->CreateStatusBar(2);
+#endif // wxUSE_STATUSBAR
 
   // Make a menubar
   wxMenu *file_menu = new wxMenu;
@@ -66,11 +64,13 @@ bool MyApp::OnInit(void)
 //  canvas->SetScrollbars(20, 20, 50, 50, 4, 4);
   frame->canvas = canvas;
 
-  frame->Show(TRUE);
+  frame->Show(true);
 
+#if wxUSE_STATUSBAR
   frame->SetStatusText(_T("Hello, wxWidgets"));
+#endif // wxUSE_STATUSBAR
 
-  return TRUE;
+  return true;
 }
 
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
@@ -82,7 +82,7 @@ END_EVENT_TABLE()
 
 // Define my frame constructor
 MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size):
-  wxFrame(frame, -1, title, pos, size)
+  wxFrame(frame, wxID_ANY, title, pos, size)
 {
   canvas = (MyCanvas *) NULL;
 }
@@ -99,7 +99,7 @@ MyFrame::~MyFrame()
 
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 {
-    Close(TRUE);
+    Close(true);
 }
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
@@ -115,9 +115,9 @@ void MyFrame::OnSaveFile(wxCommandEvent& WXUNUSED(event))
                                wxT("png"), wxT("PNG files (*.png)|*.png") );
 
   if (f == _T(""))  return;
-  
+
   wxBitmap *backstore = new wxBitmap( 150, 150 );
-  
+
   wxMemoryDC memDC;
   memDC.SelectObject( *backstore );
   memDC.Clear();
@@ -128,11 +128,11 @@ void MyFrame::OnSaveFile(wxCommandEvent& WXUNUSED(event))
   memDC.DrawLine( 0, 0, 0, 10 );
   memDC.SetTextForeground( *wxWHITE );
   memDC.DrawText( _T("This is a memory dc."), 10, 10 );
-  
+
   memDC.SelectObject( wxNullBitmap );
-  
+
   backstore->SaveFile( f, wxBITMAP_TYPE_PNG, (wxPalette*)NULL );
-  
+
   delete backstore;
 }
 
@@ -165,11 +165,7 @@ END_EVENT_TABLE()
 
 // Define a constructor for my canvas
 MyCanvas::MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size):
- wxScrolledWindow(parent, -1, pos, size)
-{
-}
-
-MyCanvas::~MyCanvas(void)
+ wxScrolledWindow(parent, wxID_ANY, pos, size)
 {
 }
 
@@ -195,7 +191,7 @@ void MyCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
     memDC.SelectObject(* g_TestBitmap);
 
     // Normal, non-transparent blitting
-    dc.Blit(20, 20, g_TestBitmap->GetWidth(), g_TestBitmap->GetHeight(), & memDC, 0, 0, wxCOPY, FALSE);
+    dc.Blit(20, 20, g_TestBitmap->GetWidth(), g_TestBitmap->GetHeight(), & memDC, 0, 0, wxCOPY, false);
 
     memDC.SelectObject(wxNullBitmap);
   }
@@ -207,7 +203,7 @@ void MyCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
 
     // Transparent blitting if there's a mask in the bitmap
     dc.Blit(20 + g_TestBitmap->GetWidth() + 20, 20, g_TestBitmap->GetWidth(), g_TestBitmap->GetHeight(), & memDC,
-      0, 0, wxCOPY, TRUE);
+      0, 0, wxCOPY, true);
 
     memDC.SelectObject(wxNullBitmap);
   }