forked from mirror/pixelfed
62 lines
1.1 KiB
Vue
62 lines
1.1 KiB
Vue
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<template>
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<canvas ref="canvas" :width="parseNumber(width)" :height="parseNumber(height)" />
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</template>
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<script type="text/javascript">
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import { decode } from 'blurhash';
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export default {
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props: {
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hash: {
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type: String,
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required: true
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},
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width: {
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type: [Number, String],
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default: 32
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},
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height: {
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type: [Number, String],
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default: 32
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},
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punch: {
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type: Number,
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default: 1
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}
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},
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mounted() {
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this.draw();
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},
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updated() {
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// this.draw();
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},
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beforeDestroy() {
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// this.hash = null;
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// this.$refs.canvas = null;
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},
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methods: {
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parseNumber(val) {
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return typeof val === 'number' ? val : parseInt(val, 10);
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},
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draw() {
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const width = this.parseNumber(this.width);
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const height = this.parseNumber(this.height);
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const punch = this.parseNumber(this.punch);
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const pixels = decode(this.hash, width, height, punch);
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const ctx = this.$refs.canvas.getContext('2d');
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const imageData = ctx.createImageData(width, height);
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imageData.data.set(pixels);
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ctx.putImageData(imageData, 0, 0);
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},
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}
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}
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</script>
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