Xiaohan-Tian
61 lines
1.8 KiB
TypeScript
61 lines
1.8 KiB
TypeScript
/**
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* KGPianoRollState - State management for the piano roll
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* Implements the singleton pattern for global access
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*/
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export class KGPianoRollState {
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private static _instance: KGPianoRollState | null = null;
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public static SNAP_OPTIONS: string[] = ['NO SNAP', '1/3', '1/4', '1/6', '1/8', '1/12', '1/16', '1/24', '1/32'];
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public static QUANT_POS_OPTIONS: string[] = ['1/3', '1/4', '1/6', '1/8', '1/12', '1/16', '1/24', '1/32'];
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public static QUANT_LEN_OPTIONS: string[] = ['1/1', '1/2', '1/3', '1/4', '1/6', '1/8', '1/12', '1/16', '1/24', '1/32'];
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public static MODE_DATA: Array<{ id: string; name: string; steps: number[] }> = []; // Modes with id, display name, and interval steps
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private activeTool: string = "pointer";
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private currentSnap: string = "NO SNAP";
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private lastEditedNoteLength: number = 1; // Default to 1 beat
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private currentMode: string = "ionian"; // Default mode
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private constructor() {
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console.log("KGPianoRollState initialized");
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}
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public static instance(): KGPianoRollState {
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if (!KGPianoRollState._instance) {
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KGPianoRollState._instance = new KGPianoRollState();
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}
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return KGPianoRollState._instance;
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}
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// Getters and setters
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public getActiveTool(): string {
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return this.activeTool;
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}
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public setActiveTool(tool: string): void {
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this.activeTool = tool;
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}
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public getCurrentSnap(): string {
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return this.currentSnap;
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}
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public setCurrentSnap(snap: string): void {
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this.currentSnap = snap;
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}
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public getLastEditedNoteLength(): number {
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return this.lastEditedNoteLength;
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}
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public setLastEditedNoteLength(length: number): void {
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this.lastEditedNoteLength = length;
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}
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public getCurrentMode(): string {
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return this.currentMode;
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}
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public setCurrentMode(mode: string): void {
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this.currentMode = mode;
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}
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} |