Handle clipping regions with negative width or height in wxQt

2019-01-21 12:35:55 +00:00
parent ce5301e4e6
commit a130a59111
1 changed files with 11 additions and 0 deletions
--- a/src/qt/dc.cpp
+++ b/src/qt/dc.cpp
@@ -416,6 +416,17 @@ void wxQtDCImpl::DoSetClippingRegion(wxCoord x, wxCoord y,
    }
    else
    {
+        if ( width < 0 )
+        {
+            width = -width;
+            x -= width - 1;
+        }
+        if ( height < 0 )
+        {
+            height = -height;
+            y -= height - 1;
+        }
+
        if (m_qtPainter->isActive())
        {
            // Set QPainter clipping (intersection if not the first one)