From 83ef6ef4ac8952a81df0c7d3894f838feade16c0 Mon Sep 17 00:00:00 2001
From: Yves Rizoud <yrizoud@gmail.com>
Date: Fri, 10 Oct 2008 00:33:22 +0000
Subject: [PATCH] (linux) Fixed a sigsegv when drawing a color brush which is
 completely outside screen (The only way is to use the circle tool)
 SDL_UpdateRect was crashing because of receiving negative Width or Height.
 This was due to Calculer_dimensions_clipees() clipping width or height so
 much that they become negative.

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@222 416bcca6-2ee7-4201-b75f-2eb2f807beb1
---
 graph.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/graph.c b/graph.c
index 1e781d51..6c24ee3e 100644
--- a/graph.c
+++ b/graph.c
@@ -1856,6 +1856,8 @@ void Afficher_pinceau(short X,short Y,byte Couleur,byte Preview)
       Largeur=Brosse_Largeur;
       Hauteur=Brosse_Hauteur;
       Calculer_dimensions_clipees(&Debut_X,&Debut_Y,&Largeur,&Hauteur);
+      if (Largeur<=0 || Hauteur<=0)
+        break;
       Debut_Compteur_X=Debut_X-(X-Brosse_Decalage_X);
       Debut_Compteur_Y=Debut_Y-(Y-Brosse_Decalage_Y);
       Fin_Compteur_X=Debut_Compteur_X+Largeur;