image-in-browser/lib/formats/psd-decoder.js

Package for encoding / decoding images, transforming images, applying filters, drawing primitives on images on the client side (no need for server Node.js)

import { FrameType } from '../image/frame-type.js';
import { ImageFormat } from './image-format.js';
import { PsdImage } from './psd/psd-image.js';
export class PsdDecoder {
    get info() {
        return this._info;
    }
    get format() {
        return ImageFormat.psd;
    }
    get numFrames() {
        var _a, _b;
        return (_b = (_a = this._info) === null || _a === void 0 ? void 0 : _a.numFrames) !== null && _b !== void 0 ? _b : 0;
    }
    decodePsd(bytes) {
        const psd = new PsdImage(bytes);
        return psd.decode() ? psd : undefined;
    }
    isValidFile(bytes) {
        const image = new PsdImage(bytes);
        return image.isValid;
    }
    startDecode(bytes) {
        this._info = new PsdImage(bytes);
        return this._info;
    }
    decode(opt) {
        var _a;
        if (this.startDecode(opt.bytes) === undefined) {
            return undefined;
        }
        const len = this.numFrames;
        if (len === 1 || opt.frameIndex !== undefined) {
            return this.decodeFrame((_a = opt.frameIndex) !== null && _a !== void 0 ? _a : 0);
        }
        let firstImage = undefined;
        for (let i = 0; i < len; ++i) {
            const frame = this.decodeFrame(i);
            if (frame === undefined) {
                continue;
            }
            if (firstImage === undefined) {
                firstImage = frame;
                frame.frameType = FrameType.page;
            }
            else {
                firstImage.addFrame(frame);
            }
        }
        return firstImage;
    }
    decodeFrame(_frameIndex) {
        var _a;
        return (_a = this._info) === null || _a === void 0 ? void 0 : _a.decodeImage();
    }
}
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