ImageNode

ImageNode

/**
 * Type of image sources of image nodes.
 */
type ImageNodeSource = Exclude<CanvasImageSource, SVGImageElement>;

/**
 * Type of options of {@link ImageNode}.
 */
type ImageNodeOptions<Events extends CanvasNodeEvents> = (CanvasNodeOptions<Events> & Partial<{
    /**
     * Image source.
     * @default null
     */
    image: ImageNodeSource | null;
    /**
     * Offset x in image source.
     * @default 0
     */
    sourceX: number;
    /**
     * Offset y in image source.
     * @default 0
     */
    sourceY: number;
    /**
     * Image width in source.
     * (`image.width` will be used if this is set to zero.)
     * @default 0
     */
    sourceWidth: number;
    /**
     * Image height in source.
     * (`image.height` will be used if this is set to zero.)
     * @default 0
     */
    sourceHeight: number;
    /**
     * Destination width.
     * (`image.width` will be used if this is set to zero.)
     * @default 0
     */
    destinationWidth: number;
    /**
     * Destination height.
     * (`image.height` will be used if this is set to zero.)
     * @default 0
     */
    destinationHeight: number;
}>);

/**
 * Class of image nodes.
 */
class ImageNode<Events extends CanvasNodeEvents = CanvasNodeEvents> extends CanvasNode<Events> {

    /**
     * Constructor of {@link ImageNode}.
     */
    constructor(options?: ImageNodeOptions<Events>);

    /**
     * Image source.
     * @default null
     */
    image: ImageNodeSource | null;

    /**
     * Offset x in image source.
     * @default 0
     */
    sourceX: number;

    /**
     * Offset y in image source.
     * @default 0
     */
    sourceY: number;

    /**
     * Image width in source.
     * (`image.width` will be used if this is set to zero.)
     * @default 0
     */
    sourceWidth: number;

    /**
     * Image height in source.
     * (`image.height` will be used if this is set to zero.)
     * @default 0
     */
    sourceHeight: number;

    /**
     * Destination width.
     * (`image.width` will be used if this is set to zero.)
     * @default 0
     */
    destinationWidth: number;

    /**
     * Destination height.
     * (`image.height` will be used if this is set to zero.)
     * @default 0
     */
    destinationHeight: number;

    /**
     * @override CanvasNode.beforeUpdate
     */
    protected beforeUpdate(): void;

    /**
     * @override CanvasNode.renderSelf
     */
    protected renderSelf(renderer: Renderer): void;
}