X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8c6b0819ecb3f8c7a4b84869ee273dff82358159..34326da778583ca8eab95f2e41738da2852a5a16:/samples/drawing/drawing.cpp

diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp
index edb821c26b..308ea82388 100644
--- a/samples/drawing/drawing.cpp
+++ b/samples/drawing/drawing.cpp
@@ -46,7 +46,7 @@
 // ----------------------------------------------------------------------------
 
 // the application icon
-#if !defined(__WXMSW__) && !defined(__WXPM__)
+#ifndef wxHAS_IMAGES_IN_RESOURCES
     #include "../sample.xpm"
 #endif
 
@@ -149,7 +149,7 @@ public:
 #if wxUSE_GRAPHICS_CONTEXT
     void UseGraphicContext(bool use) { m_useContext = use; Refresh(); }
 #endif
-    template <typename T> void Draw(T& dc);
+    void Draw(wxDC& dc);
 
 protected:
     enum DrawMode
@@ -554,19 +554,29 @@ void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc )
 
 void MyCanvas::DrawDefault(wxDC& dc)
 {
-    // mark the origin
-    dc.DrawCircle(0, 0, 10);
-
-#if !defined(wxMAC_USE_CORE_GRAPHICS) || !wxMAC_USE_CORE_GRAPHICS
-    // GetPixel and FloodFill not supported by Mac OS X CoreGraphics
-    // (FloodFill uses Blit from a non-wxMemoryDC)
-    //flood fill using brush, starting at 1,1 and replacing whatever colour we find there
-    dc.SetBrush(wxBrush(wxColour(128,128,0), wxSOLID));
-
-    wxColour tmpColour ;
-    dc.GetPixel(1,1, &tmpColour);
-    dc.FloodFill(1,1, tmpColour, wxFLOOD_SURFACE);
-#endif
+    // Draw circle centered at the origin, then flood fill it with a different
+    // color. Done with a wxMemoryDC because Blit (used by generic
+    // wxDoFloodFill) from a window that is being painted gives unpredictable
+    // results on wxGTK
+    {
+        wxImage img(21, 21, false);
+        img.Clear(1);
+        wxBitmap bmp(img);
+        {
+            wxMemoryDC mdc(bmp);
+            mdc.SetBrush(dc.GetBrush());
+            mdc.SetPen(dc.GetPen());
+            mdc.DrawCircle(10, 10, 10);
+            wxColour c;
+            if (mdc.GetPixel(11, 11, &c))
+            {
+                mdc.SetBrush(wxColour(128, 128, 0));
+                mdc.FloodFill(11, 11, c, wxFLOOD_SURFACE);
+            }
+        }
+        bmp.SetMask(new wxMask(bmp, wxColour(1, 1, 1)));
+        dc.DrawBitmap(bmp, -10, -10, true);
+    }
 
     dc.DrawCheckMark(5, 80, 15, 15);
     dc.DrawCheckMark(25, 80, 30, 30);
@@ -1487,26 +1497,47 @@ void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime)
     }
 }
 
-#if TEST_CAIRO_EVERYWHERE
-extern wxGraphicsRenderer* gCairoRenderer;
-#endif
-
 void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
 {
     wxPaintDC pdc(this);
     Draw(pdc);
 }
 
-template <typename T>
-void MyCanvas::Draw(T& pdc)
+void MyCanvas::Draw(wxDC& pdc)
 {
 #if wxUSE_GRAPHICS_CONTEXT
-#if TEST_CAIRO_EVERYWHERE
     wxGCDC gdc;
-    gdc.SetGraphicsContext( gCairoRenderer->CreateContext( pdc ) );
+    wxGraphicsRenderer* const renderer = wxGraphicsRenderer::
+#if TEST_CAIRO_EVERYWHERE
+        GetCairoRenderer()
 #else
-     wxGCDC gdc( pdc ) ;
+        GetDefaultRenderer()
+#endif
+        ;
+
+    wxGraphicsContext* context;
+    if ( wxPaintDC *paintdc = wxDynamicCast(&pdc, wxPaintDC) )
+    {
+        context = renderer->CreateContext(*paintdc);
+    }
+    else if ( wxMemoryDC *memdc = wxDynamicCast(&pdc, wxMemoryDC) )
+    {
+        context = renderer->CreateContext(*memdc);
+    }
+#if wxUSE_METAFILE && defined(wxMETAFILE_IS_ENH)
+    else if ( wxMetafileDC *metadc = wxDynamicCast(&pdc, wxMetafileDC) )
+    {
+        context = renderer->CreateContext(*metadc);
+    }
 #endif
+    else
+    {
+        wxFAIL_MSG( "Unknown wxDC kind" );
+        return;
+    }
+
+    gdc.SetGraphicsContext(context);
+
     wxDC &dc = m_useContext ? (wxDC&) gdc : (wxDC&) pdc ;
 #else
     wxDC &dc = pdc ;
@@ -1751,7 +1782,7 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 #endif
     menuFile->Append(File_Save, wxT("&Save...\tCtrl-S"), wxT("Save drawing to file"));
     menuFile->AppendSeparator();
-    menuFile->Append(File_About, wxT("&About...\tCtrl-A"), wxT("Show about dialog"));
+    menuFile->Append(File_About, wxT("&About\tCtrl-A"), wxT("Show about dialog"));
     menuFile->AppendSeparator();
     menuFile->Append(File_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));