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Prevent negative topMeasureNumber

Jimmy Utterström преди 3 години
родител
ревизия
37a04afe66
променени са 1 файла, в които са добавени 1 реда и са изтрити 1 реда
  1. 1 1
      src/OpenSheetMusicDisplay/Cursor.ts

+ 1 - 1
src/OpenSheetMusicDisplay/Cursor.ts

@@ -151,7 +151,7 @@ export class Cursor implements IPlaybackListener {
     this.updateCurrentPageFromSystem(currentSystem);
     const previousStaffEntry: GraphicalStaffEntry = values[2];
 
-    const topMeasureNumber: number = previousStaffEntry.parentMeasure.MeasureNumber;
+    const topMeasureNumber: number = Math.max(previousStaffEntry.parentMeasure.MeasureNumber, 1);
     // we have to find the top measure, otherwise the cursor with type 3 "jumps around" between vertical measures
     let topMeasure: GraphicalMeasure;
     for (const measure of this.graphic.MeasureList[topMeasureNumber - 1]) {