wave-roll/dist/lib/components/player/wave-roll/ui/loop-display.d.ts

JavaScript Library for Comparative MIDI Piano-Roll Visualization

/** Describe A-B loop window in percentage units (0-100). */
export interface LoopPoints {
    /** Start marker (A) - percentage or null when not set. */
    a: number | null;
    /** End marker (B) - percentage or null when not set. */
    b: number | null;
}
export interface LoopDisplayDeps {
    /** Current loop window [percent] - can be null when inactive. */
    loopPoints: LoopPoints | null;
    /** <div> behind progress-bar showing golden region. */
    loopRegion: HTMLElement | null | undefined;
    /** DOM marker for point-A. */
    markerA: HTMLElement | null | undefined;
    /** DOM marker for point-B. */
    markerB: HTMLElement | null | undefined;
}
/**
 * Update the visual loop overlay inside the seek-bar.
 *
 * This helper centralises the DOM tweaks so the player's update-loop
 * remains tidy. All percentages are expressed in the seek-bar's width.
 */
export declare function updateLoopDisplay({ loopPoints, loopRegion, markerA, markerB, }: LoopDisplayDeps): void;
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