[director] Fixed a crash when zooming too fast.

OpenCGSS · Oct 25, 2016 · 0ccde08 · 0ccde08
1 parent 70b3e3f
commit 0ccde08
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/DereTore.Applications.StarlightDirector/UI/Controls/ScoreBar.Rendering.cs b/DereTore.Applications.StarlightDirector/UI/Controls/ScoreBar.Rendering.cs
@@ -42,6 +42,10 @@ private void DrawBar(DrawingContext context) {
             var visibleGridCountPerSignature = gridPerSignature / zoomMod;
             var hasPartialGrids = visibleGridCountPerSignature * zoomMod != gridPerSignature;
 
+            if (visibleGridCountPerSignature <= 0) {
+                return;
+            }
+
             for (var i = 0; i <= totalGridCount; ++i) {
                 if (i % zoomMod != 0 && i != totalGridCount) {
                     // Only draws key beats.