discourse/app/assets/javascripts/wizard/components/image-preview-logo-small-url.js.es6

67 lines
1.8 KiB
JavaScript

import { observes } from 'ember-addons/ember-computed-decorators';
import {
createPreviewComponent,
drawHeader,
LOREM
} from 'wizard/lib/preview';
export default createPreviewComponent(375, 100, {
image: null,
@observes('field.value')
imageChanged() {
this.reload();
},
images() {
return { image: this.get('field.value') };
},
paint(ctx, colors, width, height) {
const headerHeight = height / 2;
drawHeader(ctx, colors, width, headerHeight);
const image = this.image;
const headerMargin = headerHeight * 0.2;
const maxWidth = headerHeight - (headerMargin * 2.0);
let imageWidth = image.width;
let ratio = 1.0;
if (imageWidth > maxWidth) {
ratio = maxWidth / imageWidth;
imageWidth = maxWidth;
}
ctx.drawImage(image, headerMargin, headerMargin, imageWidth, image.height * ratio);
const afterLogo = (headerMargin * 1.7) + imageWidth;
const fontSize = Math.round(headerHeight * 0.4);
ctx.font = `Bold ${fontSize}px 'Arial'`;
ctx.fillStyle = colors.primary;
const title = LOREM.substring(0, 27);
ctx.fillText(title, headerMargin + imageWidth, headerHeight - (fontSize * 1.1));
const category = this.categories()[0];
const badgeSize = height / 13.0;
ctx.beginPath();
ctx.fillStyle = category.color;
ctx.rect(afterLogo, (headerHeight * 0.70), badgeSize, badgeSize);
ctx.fill();
ctx.font = `Bold ${badgeSize * 1.2}px 'Arial'`;
ctx.fillStyle = colors.primary;
ctx.fillText(category.name, afterLogo + (badgeSize * 1.5), headerHeight * 0.7 + (badgeSize * 0.9));
const LINE_HEIGHT = 12;
ctx.font = `${LINE_HEIGHT}px 'Arial'`;
const lines = LOREM.split("\n");
for (let i=0; i<10; i++) {
const line = (height * 0.55) + (i * (LINE_HEIGHT * 1.5));
ctx.fillText(lines[i], afterLogo, line);
}
}
});