import type EventDispatcher from './EventDispatcher';
import type { Mat33, Point2, Vec2, Rect2, Color4 } from '@js-draw/math';
import type BaseTool from './tools/BaseTool';
import type AbstractComponent from './components/AbstractComponent';
import type Command from './commands/Command';
import type { WidgetContentLayoutManager } from './toolbar/widgets/layout/types';
/**
 * The type of the {@link Editor.notifier}, which provides notifications for
 * various editor-related events.
 */
export type EditorNotifier = EventDispatcher<EditorEventType, EditorEventDataType>;
/** @see {@link EditorNotifier} */
export declare enum EditorEventType {
    ToolEnabled = 0,
    ToolDisabled = 1,
    ToolUpdated = 2,
    UndoRedoStackUpdated = 3,
    CommandDone = 4,
    CommandUndone = 5,
    ObjectAdded = 6,
    ViewportChanged = 7,
    DisplayResized = 8,
    SelectionUpdated = 9,
    ReadOnlyModeToggled = 10,
    /** @internal */
    ColorPickerToggled = 11,
    /** @internal */
    ColorPickerColorSelected = 12,
    /** @deprecated @internal */
    ToolbarDropdownShown = 13
}
export declare enum UndoEventType {
    CommandDone = 0,
    CommandUndone = 1,
    CommandRedone = 2
}
type EditorToolEventType = EditorEventType.ToolEnabled | EditorEventType.ToolDisabled | EditorEventType.ToolUpdated;
export interface EditorToolEvent {
    readonly kind: EditorToolEventType;
    readonly tool: BaseTool;
}
export interface EditorObjectEvent {
    readonly kind: EditorEventType.ObjectAdded;
    readonly object: AbstractComponent;
}
export interface EditorViewportChangedEvent {
    readonly kind: EditorEventType.ViewportChanged;
    readonly newTransform: Mat33;
    readonly oldTransform: Mat33;
}
export interface DisplayResizedEvent {
    readonly kind: EditorEventType.DisplayResized;
    readonly newSize: Vec2;
}
export interface EditorUndoStackUpdated {
    readonly kind: EditorEventType.UndoRedoStackUpdated;
    readonly undoStackSize: number;
    readonly redoStackSize: number;
    readonly command?: Command;
    readonly stackUpdateType: UndoEventType;
}
export interface CommandDoneEvent {
    readonly kind: EditorEventType.CommandDone;
    readonly command: Command;
}
export interface CommandUndoneEvent {
    readonly kind: EditorEventType.CommandUndone;
    readonly command: Command;
}
export interface SelectionUpdated {
    readonly kind: EditorEventType.SelectionUpdated;
    readonly selectedComponents: AbstractComponent[];
    readonly tool: BaseTool;
}
export interface ReadOnlyToggled {
    readonly kind: EditorEventType.ReadOnlyModeToggled;
    readonly editorIsReadOnly: boolean;
}
export interface ColorPickerToggled {
    readonly kind: EditorEventType.ColorPickerToggled;
    readonly open: boolean;
}
export interface ColorPickerColorSelected {
    readonly kind: EditorEventType.ColorPickerColorSelected;
    readonly color: Color4;
}
export interface ToolbarDropdownShownEvent {
    readonly kind: EditorEventType.ToolbarDropdownShown;
    readonly fromToplevelDropdown: boolean;
    readonly layoutManager: WidgetContentLayoutManager;
}
export type EditorEventDataType = EditorToolEvent | EditorObjectEvent | EditorViewportChangedEvent | DisplayResizedEvent | EditorUndoStackUpdated | CommandDoneEvent | CommandUndoneEvent | SelectionUpdated | ReadOnlyToggled | ColorPickerToggled | ColorPickerColorSelected | ToolbarDropdownShownEvent;
export type OnProgressListener = (amountProcessed: number, totalToProcess: number) => Promise<void> | null | void;
export type ComponentAddedListener = (component: AbstractComponent) => Promise<void> | void;
export type OnDetermineExportRectListener = (exportRect: Rect2, options?: {
    autoresize: boolean;
}) => void;
export interface ImageLoader {
    start(onAddComponent: ComponentAddedListener, onProgressListener: OnProgressListener, onDetermineExportRect?: OnDetermineExportRectListener): Promise<void>;
}
export interface StrokeDataPoint {
    pos: Point2;
    width: number;
    /** Time in milliseconds (e.g. as returned by `performance.now()`). */
    time: number;
    color: Color4;
}
export {};