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Layer.ts
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Layer.ts
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// @webtoon/psd
// Copyright 2021-present NAVER WEBTOON
// MIT License
import {EngineData, ImageData} from "../interfaces";
import {LayerFrame} from "../sections";
import {NodeParent} from "./Node";
import {NodeBase} from "./NodeBase";
import {Synthesizable} from "./Synthesizable";
/**
* A layer in a PSD file.
* @alpha
*/
export class Layer
extends Synthesizable
implements NodeBase<NodeParent, never>
{
readonly type = "Layer";
readonly children?: undefined;
/** @internal */
constructor(
private layerFrame: LayerFrame,
public readonly parent: NodeParent
) {
super();
}
get name(): string {
return this.layerFrame.layerProperties.name;
}
get width(): number {
return this.layerFrame.width;
}
get height(): number {
return this.layerFrame.height;
}
get top(): number {
return this.layerFrame.layerProperties.top;
}
get left(): number {
return this.layerFrame.layerProperties.left;
}
get opacity(): number {
return this.layerFrame.layerProperties.opacity;
}
get composedOpacity(): number {
return this.parent.composedOpacity * (this.opacity / 255);
}
get isHidden(): boolean {
return this.layerFrame.layerProperties.hidden;
}
get isTransparencyLocked(): boolean {
return this.layerFrame.layerProperties.transparencyLocked;
}
/**
* If this layer is a text layer, this property retrieves its text content.
* Otherwise, this property is `undefined`.
*/
get text(): string | undefined {
return this.layerFrame.layerProperties.text;
}
/**
* If this layer is a text layer, this property retrieves its text properties.
* Otherwise, this property is `undefined`.
*/
get textProperties(): EngineData | undefined {
return this.layerFrame.layerProperties.textProperties;
}
protected get imageData(): ImageData {
const {red, green, blue, alpha} = this.layerFrame;
return {red, green, blue, alpha};
}
}