From: Paul Cornett <paulcor@bullseye.com>
Date: Thu, 2 Aug 2012 16:25:14 +0000 (+0000)
Subject: Fix wxGCDC::Clear() for Cairo, and possibly MSW.
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/0c4438d26e184e95a465b48794086df19a80b55c

Fix wxGCDC::Clear() for Cairo, and possibly MSW.
Maximum positive coordinate Cairo can handle is 2^23 - 1.
Also convert coordinates to logical so it works right with modified origin or scale.
See #14529


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72279 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/src/common/dcgraph.cpp b/src/common/dcgraph.cpp
index 5f79c36eb7..7cadde1395 100644
--- a/src/common/dcgraph.cpp
+++ b/src/common/dcgraph.cpp
@@ -38,8 +38,6 @@
 #endif
 #endif
 
-#include <limits.h>     // for INT_MAX
-
 //-----------------------------------------------------------------------------
 // constants
 //-----------------------------------------------------------------------------
@@ -1060,7 +1058,10 @@ void wxGCDCImpl::Clear(void)
     m_graphicContext->SetPen( p );
     wxCompositionMode formerMode = m_graphicContext->GetCompositionMode();
     m_graphicContext->SetCompositionMode(wxCOMPOSITION_SOURCE);
-    DoDrawRectangle( 0, 0, INT_MAX , INT_MAX );
+    // maximum positive coordinate Cairo can handle is 2^23 - 1
+    DoDrawRectangle(
+        DeviceToLogicalX(0), DeviceToLogicalY(0),
+        DeviceToLogicalXRel(0x007fffff), DeviceToLogicalYRel(0x007fffff));
     m_graphicContext->SetCompositionMode(formerMode);
     m_graphicContext->SetPen( m_pen );
     m_graphicContext->SetBrush( m_brush );