fix(rendering): draw triplet feel once per bar and capo once per staff (#2992)

Author: Danielku15

packages/alphatab/src/rendering/effects/CapoEffectInfo.ts

@@ -16,7 +16,9 @@ export const capoEffectInfo: EffectInfo = {
     hideOnMultiTrack: false,
     sizingMode: EffectBarGlyphSizing.SingleOnBeat,
     shouldCreateGlyph: (_renderer: BarRendererBase, beat: Beat): boolean => {
-        return beat.index === 0 && beat.voice.bar.index === 0 && beat.voice.bar.staff.capo !== 0;
+        return (
+            beat.voice.index === 0 && beat.index === 0 && beat.voice.bar.index === 0 && beat.voice.bar.staff.capo !== 0
+        );
     },
     createNewGlyph: (renderer: BarRendererBase, beat: Beat): EffectGlyph => {
         return new TextGlyph(

packages/alphatab/src/rendering/effects/TripletFeelEffectInfo.ts

@@ -16,12 +16,12 @@ export const tripletFeelEffectInfo: EffectInfo = {
     hideOnMultiTrack: true,
     sizingMode: EffectBarGlyphSizing.SinglePreBeat,
     shouldCreateGlyph: (_renderer: BarRendererBase, beat: Beat): boolean => {
+        const masterBar = beat.voice.bar.masterBar;
+        const isFirstBeat = beat.voice.bar.staff.index === 0 && beat.voice.index === 0 && beat.index === 0;
         return (
-            beat.index === 0 &&
-            ((beat.voice.bar.masterBar.index === 0 &&
-                beat.voice.bar.masterBar.tripletFeel !== TripletFeel.NoTripletFeel) ||
-                (beat.voice.bar.masterBar.index > 0 &&
-                    beat.voice.bar.masterBar.tripletFeel !== beat.voice.bar.masterBar.previousMasterBar!.tripletFeel))
+            isFirstBeat &&
+            ((masterBar.index === 0 && masterBar.tripletFeel !== TripletFeel.NoTripletFeel) ||
+                (masterBar.index > 0 && masterBar.tripletFeel !== masterBar.previousMasterBar!.tripletFeel))
         );
     },
     createNewGlyph: (_renderer: BarRendererBase, beat: Beat): EffectGlyph => {

packages/alphatab/test-data/visual-tests/effects-and-annotations/triplet-feel-and-capo-multi-voice.png

@@ -145,6 +145,26 @@ describe('EffectsAndAnnotationsTests', () => {
         await VisualTestHelper.runVisualTest('effects-and-annotations/triplet-feel.gp');
     });
 
+    it('triplet-feel-and-capo-multi-voice', async () => {
+        await VisualTestHelper.runVisualTestTex(
+            `
+            \\track "Piano"
+            \\staff {score}
+            \\capo 2
+            \\tf t8
+            \\voice
+            :8 c5 d5 e5 f5 g5 a5 b5 c6 | \\tf t16 c5 d5 e5 f5 g5 a5 b5 c6
+            \\voice
+            :2 c4 c4 | c4 c4
+            \\staff {score}
+            \\capo 5
+            \\clef F4
+            :8 c3 d3 e3 f3 g3 a3 b3 c4 | c3 d3 e3 f3 g3 a3 b3 c4
+            `,
+            'test-data/visual-tests/effects-and-annotations/triplet-feel-and-capo-multi-voice.png'
+        );
+    });
+
     it('free-time', async () => {
         await VisualTestHelper.runVisualTest('effects-and-annotations/free-time.gp');
     });