import type { Layer } from "../Layer";
import type { CanvasAction, StrokeAction } from "./actions";
import type { LayerId, LayerSnapshot } from "./layers";
export interface StrokeBounds {
    x: number;
    y: number;
    width: number;
    height: number;
}
export interface StrokePoint {
    x: number;
    y: number;
    pressure: number;
}
export interface StrokeStartEvent {
    layerId: LayerId;
    point: StrokePoint;
}
export interface StrokeEndEvent {
    layerId: LayerId;
    bounds: StrokeBounds;
    points: StrokePoint[];
}
export interface HistoryState {
    canUndo: boolean;
    canRedo: boolean;
    index: number;
    length: number;
}
export interface CanvasSnapshot {
    readonly documentWidth: number;
    readonly documentHeight: number;
    readonly layers: readonly LayerSnapshot[];
    readonly activeLayerId: LayerId;
    readonly history: HistoryState;
}
export interface CanvasEventMap {
    change: (snapshot: CanvasSnapshot) => void;
    "stroke:start": (event: StrokeStartEvent) => void;
    "stroke:end": (event: StrokeEndEvent) => void;
    "stroke:record": (action: StrokeAction) => void;
    "action:record": (action: CanvasAction) => void;
    "history:change": (history: HistoryState) => void;
    "layer:change": (layers: readonly Layer[], activeLayerId: LayerId) => void;
}
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