feat(String Numbers): add option osmd.rules.RenderStringNumbersClassical (#949) (boolean)

src/MusicalScore/Graphical/EngravingRules.ts

@@ -275,6 +275,8 @@ export class EngravingRules {
     public FingeringInsideStafflines: boolean;
     public FingeringLabelFontHeight: number;
     public FingeringOffsetX: number;
+    /** Whether to render string numbers in classical scores, i.e. not the string numbers in tabs, but e.g. for violin. */
+    public RenderStringNumbersClassical: boolean;
     /** This is not for tabs, but for classical scores, especially violin. */
     public StringNumberOffsetY: number;
     public NewSystemAtXMLNewSystemAttribute: boolean;
@@ -578,6 +580,7 @@ export class EngravingRules {
         this.FingeringInsideStafflines = false;
         this.FingeringLabelFontHeight = 1.7;
         this.FingeringOffsetX = 0.0;
+        this.RenderStringNumbersClassical = true;
         this.StringNumberOffsetY = 0.0;
         this.NewSystemAtXMLNewSystemAttribute = false;
         this.NewPageAtXMLNewPageAttribute = false;

src/MusicalScore/Graphical/VexFlow/VexFlowMeasure.ts

@@ -1390,6 +1390,9 @@ export class VexFlowMeasure extends GraphicalMeasure {
     }
 
     protected createStringNumber(voiceEntry: GraphicalVoiceEntry): void {
+        if (!this.rules.RenderStringNumbersClassical) {
+            return;
+        }
         const vexFlowVoiceEntry: VexFlowVoiceEntry = voiceEntry as VexFlowVoiceEntry;
         const note: GraphicalNote = voiceEntry.notes[0]; // only display for top note
         const stringInstruction: TechnicalInstruction = note.sourceNote.StringInstruction;