Fix wxMSW rendering artifacts with modal dialogs.

[wxWidgets.git] / src / common / wincmn.cpp

diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index ac1fbb2f402a04d0194ab109b5ea171d1f5fd422..63bc0450f645a5e6a6fd489aa298b916018e6f25 100644 (file)
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -836,18 +836,15 @@ void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant )
             break;
 
         case wxWINDOW_VARIANT_SMALL:
-            size *= 3;
-            size /= 4;
+            size = wxRound(size * 3.0 / 4.0);
             break;
 
         case wxWINDOW_VARIANT_MINI:
-            size *= 2;
-            size /= 3;
+            size = wxRound(size * 2.0 / 3.0);
             break;
 
         case wxWINDOW_VARIANT_LARGE:
-            size *= 5;
-            size /= 4;
+            size = wxRound(size * 5.0 / 4.0);
             break;
 
         default:
@@ -2291,7 +2288,9 @@ void wxWindowBase::SetConstraintSizes(bool recurse)
         if ( (constr->width.GetRelationship() != wxAsIs ) ||
              (constr->height.GetRelationship() != wxAsIs) )
         {
-            SetSize(x, y, w, h);
+            // We really shouldn't set negative sizes for the windows so make
+            // them at least of 1*1 size
+            SetSize(x, y, w > 0 ? w : 1, h > 0 ? h : 1);
         }
         else
         {