struts: Avoid an integer underflow

Fixes #900
2016-05-14 17:34:06 -04:00 · 2016-05-14 17:34:06 -04:00 · 992b03d8d2
parent 25f4f24791
commit 992b03d8d2
1 changed files with 2 additions and 2 deletions
--- a/objects/screen.c
+++ b/objects/screen.c
@ -756,8 +756,8 @@ void screen_update_workarea(screen_t *screen)

    area.x += left;
    area.y += top;
-    area.width -= left + right;
-    area.height -= top + bottom;
+    area.width -= MIN(area.width, left + right);
+    area.height -= MIN(area.height, top + bottom);

    if (AREA_EQUAL(area, screen->workarea))
        return;