From: rikky <rikky@ffa7fe5e-494d-0410-b361-a75ebd5db220>
Date: Tue, 22 Sep 2009 18:47:17 +0000 (+0000)
Subject: Fix:graphics/win32:Fixed memory corruption, if cursor position has not been set on... 
X-Git-Tag: navit-0.5.0.5194svn~2596
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=31b556911bbc02e589d2de6a8173facbae6c011f;p=profile%2Fivi%2Fnavit.git

Fix:graphics/win32:Fixed memory corruption, if cursor position has not been set on program startup

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@2595 ffa7fe5e-494d-0410-b361-a75ebd5db220
---

diff --git a/navit/navit/graphics/win32/graphics_win32.c b/navit/navit/graphics/win32/graphics_win32.c
index 6b9791a..7832df3 100644
--- a/navit/navit/graphics/win32/graphics_win32.c
+++ b/navit/navit/graphics/win32/graphics_win32.c
@@ -332,7 +332,10 @@ static LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 #endif
 			while ( !gra_priv->disabled && overlay && !overlay->disabled )
 			{
-				if ( overlay->p.x < gra_priv->width && overlay->p.y < gra_priv->height )
+				if ( overlay->p.x > 0 &&
+					 overlay->p.y > 0 &&
+					 overlay->p.x + overlay->width < gra_priv->width &&
+					 overlay->p.y + overlay->height < gra_priv->height )
 				{
 
 #ifdef  FAST_TRANSPARENCY
@@ -755,7 +758,8 @@ static void draw_drag(struct graphics_priv *gr, struct point *p)
 		gr->p.x    = p->x;
 		gr->p.y    = p->y;
 
-		if ( p->x < 0 || p->y < 0 )
+		if ( p->x < 0 || p->y < 0 ||
+		( gr->parent && ((p->x + gr->width > gr->parent->width) || (p->y + gr->height > gr->parent->height) )))
 		{
 			gr->disabled = TRUE;
 		}