import { OnInit, OnChanges } from '@angular/core';
import { DrawCommand, StateName } from './helpers/draw-state.interface';
import { FloatingTextEntryComponent } from './floating-text-entry/floating-text-entry.component';
export declare class AiaImageAnnotatorComponent implements OnInit, OnChanges {
    /**
     * The image to annotate. Can be data URI or a URL.
     */
    image: string;
    /**
     * The font family.
     * Default: Georgia
     */
    fontFamily: string;
    /**
     * The font size (including units).
     * Default: 15px
     */
    fontSize: string;
    /**
     * Hex color string.
     * Default: #1218CE (deep blue)
     */
    color: string;
    displayWidth: any;
    private imageCanvasRef;
    private drawingCanvasRef;
    private mergeCanvasRef;
    textEntry: FloatingTextEntryComponent;
    imageWidth: number;
    imageHeight: number;
    displayHeight: number;
    /**
     * Multiply this to project from the DOM space to the canvas space
     */
    projectionFactor: number;
    private _state;
    private _drawCommands;
    private _redoCommands;
    imageCtx: CanvasRenderingContext2D;
    drawingCtx: CanvasRenderingContext2D;
    readonly canvasRect: ClientRect;
    private eventTranslator;
    private mouseCurrentlyDown;
    constructor();
    ngOnInit(): void;
    ngOnChanges(changes: any): void;
    /**
     * BEGIN PUBLIC INTERFACE
     */
    /**
     * Sets current tool
     * @param toolName Name of the tool
     */
    setTool(toolName: StateName): void;
    /**
     * Undo last action
     */
    undo(): void;
    /**
     * Redo last undone action if available
     */
    redo(): void;
    /**
     * Clears canvas undo-ably
     */
    clear(): void;
    /**
     * Returns annotated image as data URI
     */
    getAnnotatedImage(type?: 'image/jpeg' | 'image/png'): string;
    /**
     * END PUBLIC INTERFACE
     */
    /**
     * Loads an image from an src and initializes the canvases. CLEARS ALL EXISTING ANNOTATIONS
     * @param image The src for the image to be annotated
     */
    private loadImageAndInitializeCanvas;
    /**
     * Sets projection factor, display width, and display height.
     * If display width hasn't been provided, it defaults to the image dimensions
     */
    private initializeDisplayDimensions;
    /**
     * Initializes the canvases (both drawing and image)
     * Sets canvas dimensions, loads contexts, etc.
     * @param img The image to load on the image canvas
     */
    private initializeCanvas;
    /**
     * Sets the color and the font
     */
    private setColorAndFont;
    /**
     * Clears drawing canvas - no questions asked
     */
    private clearCanvas;
    /**
     * Draws commands on canvas
     * @param commands The draw commands to be drawn
     * @param ctx The canvas 2d context
     */
    private drawCommandsOnCanvas;
    addCommand(command: DrawCommand): void;
    touchStart(ev: TouchEvent): void;
    touchMove(ev: TouchEvent): void;
    touchEnd(ev: TouchEvent): void;
    mouseDown(ev: MouseEvent): void;
    mouseMove(ev: MouseEvent): void;
    mouseUp(ev: MouseEvent): void;
}