From 17dd3f3912a55aa2c2b940cd641e1601f59f1fde Mon Sep 17 00:00:00 2001
From: nyamatongwe <devnull@localhost>
Date: Fri, 11 May 2007 05:00:42 +0000
Subject: Only perform alpha blending on rectangles with positive widths to
 avoid warnings. Tracing on GTK+ goes to standard error so is not buffered.

---
 gtk/PlatGTK.cxx   | 4 ++--
 win32/PlatWin.cxx | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gtk/PlatGTK.cxx b/gtk/PlatGTK.cxx
index e361b3e17..a38137684 100644
--- a/gtk/PlatGTK.cxx
+++ b/gtk/PlatGTK.cxx
@@ -1053,7 +1053,7 @@ void SurfaceImpl::AlphaRectangle(PRectangle rc, int , ColourAllocated , int , Co
 #else
 void SurfaceImpl::AlphaRectangle(PRectangle rc, int cornerSize, ColourAllocated fill, int alphaFill,
 		ColourAllocated outline, int alphaOutline, int flags) {
-	if (gc && drawable) {
+	if (gc && drawable && rc.Width() > 0) {
 		int width = rc.Width();
 		int height = rc.Height();
 		// Ensure not distorted too much by corners when small
@@ -2609,7 +2609,7 @@ bool Platform::MouseButtonBounce() {
 }
 
 void Platform::DebugDisplay(const char *s) {
-	printf("%s", s);
+	fprintf(stderr, "%s", s);
 }
 
 bool Platform::IsKeyDown(int) {
diff --git a/win32/PlatWin.cxx b/win32/PlatWin.cxx
index 5389ae57b..f9a9fa1c5 100644
--- a/win32/PlatWin.cxx
+++ b/win32/PlatWin.cxx
@@ -581,7 +581,7 @@ static void AllFour(DWORD *pixels, int width, int height, int x, int y, DWORD va
 
 void SurfaceImpl::AlphaRectangle(PRectangle rc, int cornerSize, ColourAllocated fill, int alphaFill,
 		ColourAllocated outline, int alphaOutline, int /* flags*/ ) {
-	if (AlphaBlendFn) {
+	if (AlphaBlendFn && rc.Width() > 0) {
 		HDC hMemDC = ::CreateCompatibleDC(reinterpret_cast<HDC>(hdc));
 		int width = rc.Width();
 		int height = rc.Height();
-- 
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