fixes potential crash under gatekeeper

[wxWidgets.git] / samples / image / canvas.cpp

diff --git a/samples/image/canvas.cpp b/samples/image/canvas.cpp
index 3bff81316f6bde4f041e9559fb23f4e94650246c..31ea54f76ed8620391bbccd6c7c58d6c65d9101d 100644 (file)
--- a/samples/image/canvas.cpp
+++ b/samples/image/canvas.cpp
@@ -35,6 +35,7 @@
 
 #include "smile.xbm"
 #include "smile.xpm"
+#include "cursor_png.c"
 
 #include "canvas.h"
 
@@ -62,7 +63,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
 
     wxMemoryDC dc;
     dc.SelectObject( bitmap );
-    dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) );
+    dc.SetBrush( wxBrush( wxS("orange") ) );
     dc.SetPen( *wxBLACK_PEN );
     dc.DrawRectangle( 0, 0, 100, 100 );
     dc.SetBrush( *wxWHITE_BRUSH );
@@ -243,7 +244,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
 #if wxUSE_LIBTIFF
     image.Destroy();
 
-    if ( !image.LoadFile( dir + wxT("horse.tif"), wxBITMAP_TYPE_TIF ) )
+    if ( !image.LoadFile( dir + wxT("horse.tif"), wxBITMAP_TYPE_TIFF ) )
     {
         wxLogError(wxT("Can't load TIFF image"));
     }
@@ -376,6 +377,19 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
 
         free(data);
     }
+
+    // This macro loads PNG from either resources on the platforms that support
+    // this (Windows and OS X) or from in-memory data (coming from cursor_png.c
+    // included above in our case).
+    my_png_from_res = wxBITMAP_PNG(cursor);
+
+    // This one always loads PNG from memory but exists for consistency with
+    // the above one and also because it frees you from the need to specify the
+    // length explicitly, without it you'd have to do it and also spell the
+    // array name in full, like this:
+    //
+    // my_png_from_mem = wxBitmap::NewFromPNGData(cursor_png, WXSIZEOF(cursor_png));
+    my_png_from_mem = wxBITMAP_PNG_FROM_DATA(cursor);
 }
 
 MyCanvas::~MyCanvas()
@@ -393,7 +407,7 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
         dc.DrawBitmap( my_square, 30, 30 );
 
     dc.DrawText( wxT("Drawn directly"), 150, 10 );
-    dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) );
+    dc.SetBrush( wxBrush( wxS("orange") ) );
     dc.SetPen( *wxBLACK_PEN );
     dc.DrawRectangle( 150, 30, 100, 100 );
     dc.SetBrush( *wxWHITE_BRUSH );
@@ -635,6 +649,13 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
             dc.DrawBitmap( my_horse_ani[i], 230 + i * 2 * my_horse_ani[i].GetWidth() , 2420, true );
         }
     }
+
+    dc.DrawText("PNG from resources", 30, 2460);
+    if ( my_png_from_res.IsOk() )
+        dc.DrawBitmap(my_png_from_res, 30, 2480, true);
+    dc.DrawText("PNG from memory", 230, 2460);
+    if ( my_png_from_mem.IsOk() )
+        dc.DrawBitmap(my_png_from_mem, 230, 2480, true);
 }
 
 void MyCanvas::CreateAntiAliasedBitmap()