Moved the cleanup code to an EVT_WINDOW_DESTROY handler.

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

diff --git a/samples/erase/erase.cpp b/samples/erase/erase.cpp
index 8162f96f6fb0f5dab4ab7bd661c6b6f1abb5d477..d9f5cfc0415be27d41c45c88e4208fb824683e32 100644 (file)
--- a/samples/erase/erase.cpp
+++ b/samples/erase/erase.cpp
@@ -18,8 +18,8 @@
 // ----------------------------------------------------------------------------
 
 #ifdef __GNUG__
-    #pragma implementation "minimal.cpp"
-    #pragma interface "minimal.cpp"
+    #pragma implementation "erase.cpp"
+    #pragma interface "erase.cpp"
 #endif
 
 // For compilers that support precompilation, includes "wx/wx.h".
@@ -39,7 +39,7 @@
 // resources
 // ----------------------------------------------------------------------------
 // the application icon
-#if defined(__WXGTK__) || defined(__WXMOTIF__)
+#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__)
     #include "mondrian.xpm"
 #endif
 
@@ -74,6 +74,8 @@ public:
     
     void OnPaint( wxPaintEvent &event );
     void OnEraseBackground( wxEraseEvent &event );
+    
+    wxBitmap    m_bitmap;
 
 private:
     DECLARE_EVENT_TABLE()
@@ -157,10 +159,10 @@ void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {
     wxString msg;
-    msg.Printf( _T("This is the about dialog of minimal sample.\n")
+    msg.Printf( _T("This is the about dialog of the Erase sample.\n")
                 _T("Welcome to %s"), wxVERSION_STRING);
 
-    wxMessageBox(msg, "About Minimal", wxOK | wxICON_INFORMATION, this);
+    wxMessageBox(msg, "About Erase", wxOK | wxICON_INFORMATION, this);
 }
 
 
@@ -171,9 +173,13 @@ END_EVENT_TABLE()
 
 MyCanvas::MyCanvas( MyFrame *parent )
  : wxScrolledWindow( parent, -1, wxDefaultPosition, wxDefaultSize, 
-                    wxScrolledWindowStyle|wxNO_FULL_REPAINT_ON_RESIZE )
+                    wxScrolledWindowStyle|wxNO_FULL_REPAINT_ON_RESIZE|wxSUNKEN_BORDER )
 {
     SetScrollbars( 10, 10, 40, 100, 0, 0 );
+    
+    m_bitmap = wxBitmap( mondrian_xpm );
+    
+    new wxStaticBitmap( this, -1, m_bitmap, wxPoint(80,20) );
 }
 
 void MyCanvas::OnPaint( wxPaintEvent &event )
@@ -181,8 +187,54 @@ void MyCanvas::OnPaint( wxPaintEvent &event )
     wxPaintDC dc(this);
     PrepareDC( dc );
     
+    dc.SetBrush( *wxBLACK_BRUSH );
+    dc.DrawRectangle( 0,0,200,50 );
+    
+    dc.DrawBitmap( m_bitmap, 10, 20, TRUE );
+    
+#if 0  
+    wxRegionIterator upd( GetUpdateRegion() );
+    while (upd)
+    {
+        wxLogDebug( "Paint: %d %d %d %d", upd.GetX(), upd.GetY(), upd.GetWidth(), upd.GetHeight() );
+        upd ++;
+    }
+#endif
+
+#if 0
+    wxSize size = GetSize();
+    wxSize client_size = GetClientSize();
+    wxLogDebug( "size %d %d client_size %d %d", size.x, size.y, client_size.x, client_size.y );
+#endif
+
+    int i;
+    dc.SetPen( *wxWHITE_PEN );
+    for (i = 0; i < 20; i += 2)
+       dc.DrawLine( i,i, i+100,i );
+    
+    dc.SetPen( *wxWHITE_PEN );
+    for (i = 200; i < 220; i += 2)
+       dc.DrawLine( i-200,i, i-100,i );
+    
+    wxRegion region( 110, 110, 80, 80 );
+    wxRegion hole( 130, 130, 40, 1 );
+    region.Intersect( hole );
+    dc.SetClippingRegion( region );
+    
     dc.SetBrush( *wxRED_BRUSH );
-    dc.DrawRectangle( 100, 100, 300, 500 );
+    dc.DrawRectangle( 100, 100, 200, 200 );
+    
+    dc.DestroyClippingRegion();
+
+    dc.SetPen( *wxTRANSPARENT_PEN );
+    
+    wxRegion strip( 110, 200, 30, 1 );
+    wxRegionIterator it( strip );
+    while (it)
+    {
+        dc.DrawRectangle( it.GetX(), it.GetY(), it.GetWidth(), it.GetHeight() );
+        it ++;
+    }
 }
 
 void MyCanvas::OnEraseBackground( wxEraseEvent &event )