Set brush origin for hatch brushes too.

They don't explicitly use a bitmap but MSDN still says that their origin
should be set to align brushes used on different windows.

Closes #11072.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61616 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/msw/dc.cpp b/src/msw/dc.cpp
index d25954bd326cde007f881e528f6ce8e472aead3a..46eebf25c5f2f249eee98cf0dedc766091476346 100644 (file)
--- a/src/msw/dc.cpp
+++ b/src/msw/dc.cpp
@@ -1543,15 +1543,22 @@ void wxMSWDCImpl::SetBrush(const wxBrush& brush)
     if ( brush.IsOk() )
     {
         // we must make sure the brush is aligned with the logical coordinates
     if ( brush.IsOk() )
     {
         // we must make sure the brush is aligned with the logical coordinates

-        // before selecting it
+        // before selecting it or using the same brush for the background of
+        // different windows would result in discontinuities
+        wxSize sizeBrushBitmap = wxDefaultSize;

         wxBitmap *stipple = brush.GetStipple();
         if ( stipple && stipple->IsOk() )
         wxBitmap *stipple = brush.GetStipple();
         if ( stipple && stipple->IsOk() )

+            sizeBrushBitmap = stipple->GetSize();
+        else if ( brush.IsHatch() )
+            sizeBrushBitmap = wxSize(8, 8);
+
+        if ( sizeBrushBitmap.IsFullySpecified() )

         {
             if ( !::SetBrushOrgEx
                     (
                         GetHdc(),
         {
             if ( !::SetBrushOrgEx
                     (
                         GetHdc(),

-                        m_deviceOriginX % stipple->GetWidth(),
-                        m_deviceOriginY % stipple->GetHeight(),
+                        m_deviceOriginX % sizeBrushBitmap.x,
+                        m_deviceOriginY % sizeBrushBitmap.y,

                         NULL                    // [out] previous brush origin
                     ) )
             {
                         NULL                    // [out] previous brush origin
                     ) )
             {