test wxRegion::Offset()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13946 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/samples/drawing/drawing.cpp b/samples/drawing/drawing.cpp
index 93c4b6df2fd39f4b7aa06c6799df229319f162cc..8e53e2d480464de5548d5a8110310f800b6392c7 100644 (file)
--- a/samples/drawing/drawing.cpp
+++ b/samples/drawing/drawing.cpp
@@ -161,7 +161,7 @@ protected:
     void DrawCircles(wxDC& dc);
     void DrawDefault(wxDC& dc);
 
-    void DrawRegionsHelper(wxDC& dc, wxCoord x);
+    void DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime);
 
 private:
     MyFrame *m_owner;
@@ -841,50 +841,53 @@ void MyCanvas::DrawRegions(wxDC& dc)
 {
     dc.DrawText("You should see a red rect partly covered by a cyan one "
                 "on the left", 10, 5);
-    dc.DrawText("and 5 smileys from which 4 are partially clipped on the "
-                "right (2 copies should be identical)",
+    dc.DrawText("and 5 smileys from which 4 are partially clipped on the right",
                 10, 5 + dc.GetCharHeight());
+    dc.DrawText("The second copy should be identical but right part of it "
+                "should be offset by 10 pixels.",
+                10, 5 + 2*dc.GetCharHeight());
 
-    DrawRegionsHelper(dc, 10);
-    DrawRegionsHelper(dc, 350);
+    DrawRegionsHelper(dc, 10, TRUE);
+    DrawRegionsHelper(dc, 350, FALSE);
 }
 
-void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x)
+void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x, bool firstTime)
 {
+    wxCoord y = 100;
+
     dc.DestroyClippingRegion();
     dc.SetBrush( *wxWHITE_BRUSH );
     dc.SetPen( *wxTRANSPARENT_PEN );
-    dc.DrawRectangle( x,50,310,310 );
+    dc.DrawRectangle( x, y, 310, 310 );
 
-    dc.SetClippingRegion( x+10,60,100,270 );
+    dc.SetClippingRegion( x + 10, y + 10, 100, 270 );
 
     dc.SetBrush( *wxRED_BRUSH );
-    dc.DrawRectangle( x,50,310,310 );
+    dc.DrawRectangle( x, y, 310, 310 );
 
-    dc.SetClippingRegion( x+10,60,100,100 );
+    dc.SetClippingRegion( x + 10, y + 10, 100, 100 );
 
     dc.SetBrush( *wxCYAN_BRUSH );
-    dc.DrawRectangle( x,50,310,310 );
+    dc.DrawRectangle( x, y, 310, 310 );
+
+    dc.DestroyClippingRegion();
+
+    wxRegion region(x + 110, y + 20, 100, 270);
+    if ( !firstTime )
+        region.Offset(10, 10);
 
-    // when drawing the left half, destroy the clipping region, when drawing
-    // the right one - leave it
-    //
-    // normally it shouldn't make any difference as SetClippingRegion()
-    // replaces the old clipping region
-    if ( x < 300 )
-        dc.DestroyClippingRegion();
-    dc.SetClippingRegion( x+110,70,100,270 );
+    dc.SetClippingRegion(region);
 
     dc.SetBrush( *wxGREY_BRUSH );
-    dc.DrawRectangle( x,50,310,310 );
+    dc.DrawRectangle( x, y, 310, 310 );
 
     if (m_smile_bmp.Ok())
     {
-        dc.DrawBitmap( m_smile_bmp, x+150, 200, TRUE );
-        dc.DrawBitmap( m_smile_bmp, x+130, 60, TRUE );
-        dc.DrawBitmap( m_smile_bmp, x+130, 330, TRUE );
-        dc.DrawBitmap( m_smile_bmp, x+100, 120, TRUE );
-        dc.DrawBitmap( m_smile_bmp, x+200, 120, TRUE );
+        dc.DrawBitmap( m_smile_bmp, x + 150, y + 150, TRUE );
+        dc.DrawBitmap( m_smile_bmp, x + 130, y + 10,  TRUE );
+        dc.DrawBitmap( m_smile_bmp, x + 130, y + 280, TRUE );
+        dc.DrawBitmap( m_smile_bmp, x + 100, y + 70,  TRUE );
+        dc.DrawBitmap( m_smile_bmp, x + 200, y + 70,  TRUE );
     }
 }