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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import QRCodeStyling from 'qr-code-styling';
import { url } from '@@/js/config.js';
import ExifReader from 'exifreader';
import { FN_frame } from './frame.js';
import { ImageCompositor } from '@/lib/ImageCompositor.js';
import { ensureSignin } from '@/i.js';
const $i = ensureSignin();
type LabelParams = {
enabled: boolean;
scale: number;
padding: number;
textBig: string;
textSmall: string;
centered: boolean;
withQrCode: boolean;
};
export type ImageFrameParams = {
borderThickness: number;
labelTop: LabelParams;
labelBottom: LabelParams;
bgColor: [r: number, g: number, b: number];
fgColor: [r: number, g: number, b: number];
font: 'serif' | 'sans-serif';
borderRadius: number; // TODO
};
export type ImageFramePreset = {
id: string;
name: string;
params: ImageFrameParams;
};
export class ImageFrameRenderer {
private compositor: ImageCompositor<{ frame: typeof FN_frame }>;
private image: HTMLImageElement | ImageBitmap;
private exif: ExifReader.Tags | null;
private caption: string | null = null;
private filename: string | null = null;
private renderAsPreview = false;
constructor(options: {
canvas: HTMLCanvasElement,
image: HTMLImageElement | ImageBitmap,
exif: ExifReader.Tags | null,
filename: string | null,
caption: string | null,
renderAsPreview?: boolean,
}) {
this.image = options.image;
this.exif = options.exif;
this.caption = options.caption ?? null;
this.filename = options.filename ?? null;
this.renderAsPreview = options.renderAsPreview ?? false;
this.compositor = new ImageCompositor({
canvas: options.canvas,
renderWidth: 1,
renderHeight: 1,
image: null,
functions: { frame: FN_frame },
});
this.compositor.registerTexture('image', this.image);
}
private interpolateTemplateText(text: string) {
const DateTimeOriginal = this.exif == null ? '2012:03:04 5:06:07' : this.exif.DateTimeOriginal?.description;
const Model = this.exif == null ? 'Example camera' : this.exif.Model?.description;
const LensModel = this.exif == null ? 'Example lens 123mm f/1.23' : this.exif.LensModel?.description;
const FocalLength = this.exif == null ? '123mm' : this.exif.FocalLength?.description;
const FocalLengthIn35mmFilm = this.exif == null ? '123mm' : this.exif.FocalLengthIn35mmFilm?.description;
const ExposureTime = this.exif == null ? '1/234' : this.exif.ExposureTime?.description;
const FNumber = this.exif == null ? '1.23' : this.exif.FNumber?.description;
const ISOSpeedRatings = this.exif == null ? '123' : this.exif.ISOSpeedRatings?.description;
const GPSLatitude = this.exif == null ? '123.000000000000123' : this.exif.GPSLatitude?.description;
const GPSLongitude = this.exif == null ? '456.000000000000123' : this.exif.GPSLongitude?.description;
return text.replaceAll(/\{(\w+)\}/g, (_: string, key: string) => {
const meta_date = DateTimeOriginal ?? '????:??:?? ??:??:??';
const date = meta_date.split(' ')[0].replaceAll(':', '/');
switch (key) {
case 'caption': return this.caption ?? '?';
case 'filename': return this.filename ?? '?';
case 'filename_without_ext': return this.filename?.replace(/\.[^/.]+$/, '') ?? '?';
case 'year': return date.split('/')[0];
case 'month': return date.split('/')[1].replace(/^0/, '');
case 'day': return date.split('/')[2].replace(/^0/, '');
case 'hour': return meta_date.split(' ')[1].split(':')[0].replace(/^0/, '');
case 'minute': return meta_date.split(' ')[1].split(':')[1].replace(/^0/, '');
case 'second': return meta_date.split(' ')[1].split(':')[2].replace(/^0/, '');
case '0month': return date.split('/')[1];
case '0day': return date.split('/')[2];
case '0hour': return meta_date.split(' ')[1].split(':')[0];
case '0minute': return meta_date.split(' ')[1].split(':')[1];
case '0second': return meta_date.split(' ')[1].split(':')[2];
case 'camera_model': return Model ?? '?';
case 'camera_lens_model': return LensModel ?? '?';
case 'camera_mm': return FocalLength?.replace(' mm', '').replace('mm', '') ?? '?';
case 'camera_mm_35': return FocalLengthIn35mmFilm?.replace(' mm', '').replace('mm', '') ?? '?';
case 'camera_f': return FNumber?.replace('f/', '') ?? '?';
case 'camera_s': return ExposureTime ?? '?';
case 'camera_iso': return ISOSpeedRatings ?? '?';
case 'gps_lat': return GPSLatitude ?? '?';
case 'gps_long': return GPSLongitude ?? '?';
default: return '?';
}
});
}
private async renderLabel(renderWidth: number, renderHeight: number, paddingLeft: number, paddingRight: number, imageAreaH: number, fgColor: [number, number, number], font: string, params: LabelParams) {
const scaleBase = imageAreaH * params.scale;
const labelCanvasCtx = window.document.createElement('canvas').getContext('2d')!;
labelCanvasCtx.canvas.width = renderWidth;
labelCanvasCtx.canvas.height = renderHeight;
const fontSize = scaleBase / 30;
const textsMarginLeft = Math.max(fontSize * 2, paddingLeft);
const textsMarginRight = textsMarginLeft;
const withQrCode = params.withQrCode;
const qrSize = scaleBase * 0.1;
const qrMarginRight = Math.max((labelCanvasCtx.canvas.height - qrSize) / 2, paddingRight);
labelCanvasCtx.fillStyle = `rgb(${Math.floor(fgColor[0] * 255)}, ${Math.floor(fgColor[1] * 255)}, ${Math.floor(fgColor[2] * 255)})`;
labelCanvasCtx.font = `bold ${fontSize}px ${font}`;
labelCanvasCtx.textBaseline = 'middle';
const titleY = params.textSmall === '' ? (labelCanvasCtx.canvas.height / 2) : (labelCanvasCtx.canvas.height / 2) - (fontSize * 0.9);
if (params.centered) {
labelCanvasCtx.textAlign = 'center';
labelCanvasCtx.fillText(this.interpolateTemplateText(params.textBig), labelCanvasCtx.canvas.width / 2, titleY, labelCanvasCtx.canvas.width - textsMarginLeft - textsMarginRight);
} else {
labelCanvasCtx.textAlign = 'left';
labelCanvasCtx.fillText(this.interpolateTemplateText(params.textBig), textsMarginLeft, titleY, labelCanvasCtx.canvas.width - textsMarginLeft - (withQrCode ? (qrSize + qrMarginRight + (fontSize * 1)) : textsMarginRight));
}
labelCanvasCtx.fillStyle = `rgba(${Math.floor(fgColor[0] * 255)}, ${Math.floor(fgColor[1] * 255)}, ${Math.floor(fgColor[2] * 255)}, 0.5)`;
labelCanvasCtx.font = `${fontSize * 0.85}px ${font}`;
labelCanvasCtx.textBaseline = 'middle';
const textY = params.textBig === '' ? (labelCanvasCtx.canvas.height / 2) : (labelCanvasCtx.canvas.height / 2) + (fontSize * 0.9);
if (params.centered) {
labelCanvasCtx.textAlign = 'center';
labelCanvasCtx.fillText(this.interpolateTemplateText(params.textSmall), labelCanvasCtx.canvas.width / 2, textY, labelCanvasCtx.canvas.width - textsMarginLeft - textsMarginRight);
} else {
labelCanvasCtx.textAlign = 'left';
labelCanvasCtx.fillText(this.interpolateTemplateText(params.textSmall), textsMarginLeft, textY, labelCanvasCtx.canvas.width - textsMarginLeft - (withQrCode ? (qrSize + qrMarginRight + (fontSize * 1)) : textsMarginRight));
}
if (withQrCode) {
try {
const qrCodeInstance = new QRCodeStyling({
width: labelCanvasCtx.canvas.height,
height: labelCanvasCtx.canvas.height,
margin: 0,
type: 'canvas',
data: `${url}/users/${$i.id}`,
//image: $i.avatarUrl,
qrOptions: {
typeNumber: 0,
mode: 'Byte',
errorCorrectionLevel: 'H',
},
imageOptions: {
hideBackgroundDots: true,
imageSize: 0.3,
margin: 16,
crossOrigin: 'anonymous',
},
dotsOptions: {
type: 'dots',
roundSize: false,
color: `rgb(${Math.floor(fgColor[0] * 255)}, ${Math.floor(fgColor[1] * 255)}, ${Math.floor(fgColor[2] * 255)})`,
},
backgroundOptions: {
color: 'transparent',
},
cornersDotOptions: {
type: 'dot',
},
cornersSquareOptions: {
type: 'extra-rounded',
},
});
const blob = await qrCodeInstance.getRawData('png') as Blob | null;
if (blob == null) throw new Error('Failed to generate QR code');
const qrImageBitmap = await window.createImageBitmap(blob);
labelCanvasCtx.drawImage(
qrImageBitmap,
labelCanvasCtx.canvas.width - qrSize - qrMarginRight,
(labelCanvasCtx.canvas.height - qrSize) / 2,
qrSize,
qrSize,
);
qrImageBitmap.close();
} catch (_) {
// nop
}
}
return labelCanvasCtx.getImageData(0, 0, labelCanvasCtx.canvas.width, labelCanvasCtx.canvas.height); ;
}
public async render(params: ImageFrameParams): Promise<void> {
let imageAreaW = this.image.width;
let imageAreaH = this.image.height;
if (this.renderAsPreview) {
const MAX_W = 1000;
const MAX_H = 1000;
if (imageAreaW > MAX_W || imageAreaH > MAX_H) {
const scale = Math.min(MAX_W / imageAreaW, MAX_H / imageAreaH);
imageAreaW = Math.floor(imageAreaW * scale);
imageAreaH = Math.floor(imageAreaH * scale);
}
}
const paddingLeft = Math.floor(imageAreaH * params.borderThickness);
const paddingRight = Math.floor(imageAreaH * params.borderThickness);
const paddingTop = params.labelTop.enabled ? Math.floor(imageAreaH * params.labelTop.padding) : Math.floor(imageAreaH * params.borderThickness);
const paddingBottom = params.labelBottom.enabled ? Math.floor(imageAreaH * params.labelBottom.padding) : Math.floor(imageAreaH * params.borderThickness);
const renderWidth = imageAreaW + paddingLeft + paddingRight;
const renderHeight = imageAreaH + paddingTop + paddingBottom;
if (params.labelTop.enabled) {
const topLabelImage = await this.renderLabel(renderWidth, paddingTop, paddingLeft, paddingRight, imageAreaH, params.fgColor, params.font, params.labelTop);
this.compositor.registerTexture('topLabel', topLabelImage);
}
if (params.labelBottom.enabled) {
const bottomLabelImage = await this.renderLabel(renderWidth, paddingBottom, paddingLeft, paddingRight, imageAreaH, params.fgColor, params.font, params.labelBottom);
this.compositor.registerTexture('bottomLabel', bottomLabelImage);
}
this.compositor.changeResolution(renderWidth, renderHeight);
this.compositor.render([{
functionId: 'frame',
id: 'a',
params: {
image: 'image',
topLabel: 'topLabel',
bottomLabel: 'bottomLabel',
topLabelEnabled: params.labelTop.enabled,
bottomLabelEnabled: params.labelBottom.enabled,
paddingLeft: paddingLeft / renderWidth,
paddingRight: paddingRight / renderWidth,
paddingTop: paddingTop / renderHeight,
paddingBottom: paddingBottom / renderHeight,
bg: params.bgColor,
},
}]);
}
/*
* disposeCanvas = true だとloseContextを呼ぶため、コンストラクタで渡されたcanvasも再利用不可になるので注意
*/
public destroy(disposeCanvas = true): void {
this.compositor.destroy(disposeCanvas);
}
}
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