@pixi/utils/lib/media/CanvasRenderTarget.mjs.map

Collection of utilities used by PixiJS

{"version":3,"file":"CanvasRenderTarget.mjs","sources":["../../src/media/CanvasRenderTarget.ts"],"sourcesContent":["import { settings } from '@pixi/settings';\n\nimport type { ICanvas, ICanvasRenderingContext2D } from '@pixi/settings';\n\n/**\n * Creates a Canvas element of the given size to be used as a target for rendering to.\n * @class\n * @memberof PIXI.utils\n */\nexport class CanvasRenderTarget\n{\n    protected _canvas: ICanvas | null;\n\n    protected _context: ICanvasRenderingContext2D | null;\n\n    /**\n     * The resolution / device pixel ratio of the canvas\n     * @default 1\n     */\n    public resolution: number;\n\n    /**\n     * @param width - the width for the newly created canvas\n     * @param height - the height for the newly created canvas\n     * @param {number} [resolution=PIXI.settings.RESOLUTION] - The resolution / device pixel ratio of the canvas\n     */\n    constructor(width: number, height: number, resolution?: number)\n    {\n        this._canvas = settings.ADAPTER.createCanvas();\n\n        this._context = this._canvas.getContext('2d');\n\n        this.resolution = resolution || settings.RESOLUTION;\n\n        this.resize(width, height);\n    }\n\n    /**\n     * Clears the canvas that was created by the CanvasRenderTarget class.\n     * @private\n     */\n    clear(): void\n    {\n        // #if _DEBUG\n        this._checkDestroyed();\n        // #endif\n\n        this._context.setTransform(1, 0, 0, 1, 0, 0);\n        this._context.clearRect(0, 0, this._canvas.width, this._canvas.height);\n    }\n\n    /**\n     * Resizes the canvas to the specified width and height.\n     * @param desiredWidth - the desired width of the canvas\n     * @param desiredHeight - the desired height of the canvas\n     */\n    resize(desiredWidth: number, desiredHeight: number): void\n    {\n        // #if _DEBUG\n        this._checkDestroyed();\n        // #endif\n\n        this._canvas.width = Math.round(desiredWidth * this.resolution);\n        this._canvas.height = Math.round(desiredHeight * this.resolution);\n    }\n\n    /** Destroys this canvas. */\n    destroy(): void\n    {\n        this._context = null;\n        this._canvas = null;\n    }\n\n    /**\n     * The width of the canvas buffer in pixels.\n     * @member {number}\n     */\n    get width(): number\n    {\n        // #if _DEBUG\n        this._checkDestroyed();\n        // #endif\n\n        return this._canvas.width;\n    }\n\n    set width(val: number)\n    {\n        // #if _DEBUG\n        this._checkDestroyed();\n        // #endif\n\n        this._canvas.width = Math.round(val);\n    }\n\n    /**\n     * The height of the canvas buffer in pixels.\n     * @member {number}\n     */\n    get height(): number\n    {\n        // #if _DEBUG\n        this._checkDestroyed();\n        // #endif\n\n        return this._canvas.height;\n    }\n\n    set height(val: number)\n    {\n        // #if _DEBUG\n        this._checkDestroyed();\n        // #endif\n\n        this._canvas.height = Math.round(val);\n    }\n\n    /** The Canvas object that belongs to this CanvasRenderTarget. */\n    public get canvas(): ICanvas\n    {\n        // #if _DEBUG\n        this._checkDestroyed();\n        // #endif\n\n        return this._canvas;\n    }\n\n    /** A CanvasRenderingContext2D object representing a two-dimensional rendering context. */\n    public get context(): ICanvasRenderingContext2D\n    {\n        // #if _DEBUG\n        this._checkDestroyed();\n        // #endif\n\n        return this._context;\n    }\n\n    // #if _DEBUG\n    private _checkDestroyed(): asserts this is this & { _canvas: ICanvas; 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