draci: Fixed bug in Surface::centerOn{X,Y}() which made it return a negative coordinate for strings that are too long. Resolves the crash caused by the English data files containing strings which are improperly line-breaked. Ideally, the engine should do the line-breaking itself when the string does not fit.

svn-id: r44376

1 files changed, 6 insertions, 0 deletions

diff --git a/engines/draci/surface.cpp b/engines/draci/surface.cpp
index 12fabd2ec3..4f97ee75c8 100644
--- a/engines/draci/surface.cpp
+++ b/engines/draci/surface.cpp
@@ -144,6 +144,9 @@ uint Surface::centerOnX(uint x, uint width) const {
 	if (newX + width >= (uint)w - 1)
 		newX = (w - 1) - width;
 
+	if (newX < 0)
+		newX = 0;
+
 	return newX;
 }
 
@@ -165,6 +168,9 @@ uint Surface::centerOnY(uint y, uint height) const {
 	if (newY + height >= (uint)h - 1)
 		newY = (h - 1) - height;
 
+	if (newY < 0)
+		newY = 0;
+
 	return newY;
 }