2016-09-16 16:12:56 -04:00
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/*eslint no-bitwise:0 */
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2018-06-15 11:03:24 -04:00
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import getUrl from "discourse-common/lib/get-url";
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2016-09-16 16:12:56 -04:00
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2016-09-16 16:39:12 -04:00
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export const LOREM = `
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2018-07-24 09:00:20 -04:00
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Lorem ipsum dolor sit amet,
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consectetur adipiscing elit.
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Nullam eget sem non elit
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tincidunt rhoncus. Fusce
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velit nisl, porttitor sed
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nisl ac, consectetur interdum
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metus. Fusce in consequat
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augue, vel facilisis felis.`;
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2016-09-16 16:39:12 -04:00
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2016-09-21 16:48:48 -04:00
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const scaled = {};
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function canvasFor(image, w, h) {
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w = Math.ceil(w);
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h = Math.ceil(h);
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2019-04-15 02:16:05 -04:00
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const scale = window.devicePixelRatio;
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2018-06-15 11:03:24 -04:00
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const can = document.createElement("canvas");
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can.width = w * scale;
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can.height = h * scale;
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2016-09-21 16:48:48 -04:00
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2018-06-15 11:03:24 -04:00
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const ctx = can.getContext("2d");
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ctx.scale(scale, scale);
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2016-09-21 16:48:48 -04:00
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ctx.drawImage(image, 0, 0, w, h);
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return can;
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}
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2016-09-16 16:12:56 -04:00
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export function createPreviewComponent(width, height, obj) {
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const scale = window.devicePixelRatio;
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2018-06-15 11:03:24 -04:00
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return Ember.Component.extend(
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{
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layoutName: "components/theme-preview",
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width,
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height,
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elementWidth: width * scale,
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elementHeight: height * scale,
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ctx: null,
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loaded: false,
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didInsertElement() {
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this._super(...arguments);
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2019-07-16 06:45:15 -04:00
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const c = this.element.querySelector("canvas");
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this.ctx = c.getContext("2d");
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2019-05-08 08:14:28 -04:00
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this.ctx.scale(scale, scale);
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2018-06-15 11:03:24 -04:00
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this.reload();
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},
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images() {},
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loadImages() {
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const images = this.images();
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if (images) {
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return Ember.RSVP.Promise.all(
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Object.keys(images).map(id => {
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return loadImage(images[id]).then(img => (this[id] = img));
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})
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);
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}
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return Ember.RSVP.Promise.resolve();
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},
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reload() {
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this.loadImages().then(() => {
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this.loaded = true;
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this.triggerRepaint();
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});
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},
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triggerRepaint() {
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Ember.run.scheduleOnce("afterRender", this, "repaint");
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},
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repaint() {
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if (!this.loaded) {
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return false;
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}
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2016-09-16 16:12:56 -04:00
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2019-05-27 04:42:53 -04:00
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const colors = this.wizard.getCurrentColors(this.colorsId);
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if (!colors) {
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return;
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}
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const { ctx } = this;
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2018-06-15 11:03:24 -04:00
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ctx.fillStyle = colors.secondary;
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ctx.fillRect(0, 0, width, height);
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this.paint(ctx, colors, this.width, this.height);
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2016-09-16 16:12:56 -04:00
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2018-06-15 11:03:24 -04:00
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// draw border
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ctx.beginPath();
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ctx.strokeStyle = "rgba(0, 0, 0, 0.2)";
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ctx.rect(0, 0, width, height);
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ctx.stroke();
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},
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2016-09-21 16:09:18 -04:00
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2018-06-15 11:03:24 -04:00
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categories() {
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return [
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{ name: "consecteteur", color: "#652D90" },
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{ name: "ultrices", color: "#3AB54A" },
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{ name: "placerat", color: "#25AAE2" }
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];
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},
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2016-09-21 16:09:18 -04:00
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2018-06-15 11:03:24 -04:00
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scaleImage(image, x, y, w, h) {
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w = Math.floor(w);
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h = Math.floor(h);
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2018-06-15 11:03:24 -04:00
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const { ctx } = this;
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2016-09-21 16:48:48 -04:00
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2018-06-15 11:03:24 -04:00
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const key = `${image.src}-${w}-${h}`;
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2016-09-21 16:48:48 -04:00
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2018-06-15 11:03:24 -04:00
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if (!scaled[key]) {
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let copy = image;
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let ratio = copy.width / copy.height;
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let newH = copy.height * 0.5;
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while (newH > h) {
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copy = canvasFor(copy, ratio * newH, newH);
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newH = newH * 0.5;
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}
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2018-06-15 11:03:24 -04:00
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scaled[key] = copy;
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}
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2018-06-15 11:03:24 -04:00
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ctx.drawImage(scaled[key], x, y, w, h);
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},
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2016-09-21 16:48:48 -04:00
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2018-06-15 11:03:24 -04:00
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drawFullHeader(colors) {
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const { ctx } = this;
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2016-09-21 16:48:48 -04:00
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2018-06-15 11:03:24 -04:00
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const headerHeight = height * 0.15;
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drawHeader(ctx, colors, width, headerHeight);
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2016-09-21 16:09:18 -04:00
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2018-06-15 11:03:24 -04:00
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const avatarSize = height * 0.1;
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2016-09-21 16:09:18 -04:00
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2018-06-15 11:03:24 -04:00
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// Logo
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const headerMargin = headerHeight * 0.2;
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const logoHeight = headerHeight - headerMargin * 2;
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2016-09-21 16:09:18 -04:00
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2018-07-24 09:00:20 -04:00
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ctx.beginPath();
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ctx.fillStyle = colors.header_primary;
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ctx.font = `bold ${logoHeight}px 'Arial'`;
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ctx.fillText("Discourse", headerMargin, headerHeight - headerMargin);
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2016-11-07 11:06:32 -05:00
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2018-06-15 11:03:24 -04:00
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// Top right menu
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this.scaleImage(
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this.avatar,
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width - avatarSize - headerMargin,
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headerMargin,
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avatarSize,
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avatarSize
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);
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ctx.fillStyle = darkLightDiff(colors.primary, colors.secondary, 45, 55);
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2018-12-20 03:25:22 -05:00
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const pathScale = headerHeight / 1200;
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// search icon SVG path
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const searchIcon = new Path2D(
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"M505 442.7L405.3 343c-4.5-4.5-10.6-7-17-7H372c27.6-35.3 44-79.7 44-128C416 93.1 322.9 0 208 0S0 93.1 0 208s93.1 208 208 208c48.3 0 92.7-16.4 128-44v16.3c0 6.4 2.5 12.5 7 17l99.7 99.7c9.4 9.4 24.6 9.4 33.9 0l28.3-28.3c9.4-9.4 9.4-24.6.1-34zM208 336c-70.7 0-128-57.2-128-128 0-70.7 57.2-128 128-128 70.7 0 128 57.2 128 128 0 70.7-57.2 128-128 128z"
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);
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2018-12-20 03:25:22 -05:00
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// hamburger icon
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const hamburgerIcon = new Path2D(
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"M16 132h416c8.837 0 16-7.163 16-16V76c0-8.837-7.163-16-16-16H16C7.163 60 0 67.163 0 76v40c0 8.837 7.163 16 16 16zm0 160h416c8.837 0 16-7.163 16-16v-40c0-8.837-7.163-16-16-16H16c-8.837 0-16 7.163-16 16v40c0 8.837 7.163 16 16 16zm0 160h416c8.837 0 16-7.163 16-16v-40c0-8.837-7.163-16-16-16H16c-8.837 0-16 7.163-16 16v40c0 8.837 7.163 16 16 16z"
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);
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ctx.save(); // Save the previous state for translation and scale
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ctx.translate(
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width - avatarSize * 3 - headerMargin * 0.5,
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avatarSize / 2
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);
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// need to scale paths otherwise they're too large
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ctx.scale(pathScale, pathScale);
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ctx.fill(searchIcon);
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ctx.restore();
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ctx.save();
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ctx.translate(
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width - avatarSize * 2 - headerMargin * 0.5,
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avatarSize / 2
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);
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2018-12-20 03:25:22 -05:00
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ctx.scale(pathScale, pathScale);
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ctx.fill(hamburgerIcon);
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ctx.restore();
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2018-06-15 11:03:24 -04:00
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},
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drawPills(colors, headerHeight, opts) {
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opts = opts || {};
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const { ctx } = this;
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const categoriesSize = headerHeight * 2;
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const badgeHeight = categoriesSize * 0.25;
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const headerMargin = headerHeight * 0.2;
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ctx.beginPath();
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2018-12-20 03:25:22 -05:00
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ctx.strokeStyle = colors.primary;
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ctx.lineWidth = 0.5;
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2018-06-15 11:03:24 -04:00
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ctx.rect(
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headerMargin,
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headerHeight + headerMargin,
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categoriesSize,
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badgeHeight
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);
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2018-12-20 03:25:22 -05:00
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ctx.stroke();
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2018-06-15 11:03:24 -04:00
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const fontSize = Math.round(badgeHeight * 0.5);
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2018-12-20 03:25:22 -05:00
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2018-06-15 11:03:24 -04:00
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ctx.font = `${fontSize}px 'Arial'`;
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ctx.fillStyle = colors.primary;
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ctx.fillText(
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"all categories",
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headerMargin * 1.5,
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2018-12-20 03:25:22 -05:00
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headerHeight + headerMargin * 1.4 + fontSize
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2018-06-15 11:03:24 -04:00
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);
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2018-12-20 03:25:22 -05:00
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const pathScale = badgeHeight / 1000;
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// caret icon
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const caretIcon = new Path2D(
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"M0 384.662V127.338c0-17.818 21.543-26.741 34.142-14.142l128.662 128.662c7.81 7.81 7.81 20.474 0 28.284L34.142 398.804C21.543 411.404 0 402.48 0 384.662z"
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);
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ctx.save();
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ctx.translate(
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categoriesSize - headerMargin / 4,
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2018-12-20 03:25:22 -05:00
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headerHeight + headerMargin + badgeHeight / 4
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);
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2018-12-20 03:25:22 -05:00
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ctx.scale(pathScale, pathScale);
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ctx.fill(caretIcon);
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ctx.restore();
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2018-06-15 11:03:24 -04:00
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const text = opts.categories ? "Categories" : "Latest";
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const activeWidth = categoriesSize * (opts.categories ? 0.8 : 0.55);
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ctx.beginPath();
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ctx.fillStyle = colors.quaternary;
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ctx.rect(
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headerMargin * 2 + categoriesSize,
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headerHeight + headerMargin,
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activeWidth,
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badgeHeight
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);
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ctx.fill();
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ctx.font = `${fontSize}px 'Arial'`;
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ctx.fillStyle = colors.secondary;
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let x = headerMargin * 3.0 + categoriesSize;
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ctx.fillText(
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text,
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x - headerMargin * 0.1,
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headerHeight + headerMargin * 1.5 + fontSize
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);
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ctx.fillStyle = colors.primary;
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x += categoriesSize * (opts.categories ? 0.8 : 0.6);
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ctx.fillText("New", x, headerHeight + headerMargin * 1.5 + fontSize);
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x += categoriesSize * 0.4;
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ctx.fillText("Unread", x, headerHeight + headerMargin * 1.5 + fontSize);
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x += categoriesSize * 0.6;
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ctx.fillText("Top", x, headerHeight + headerMargin * 1.5 + fontSize);
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2016-11-07 11:06:32 -05:00
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}
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2016-09-21 16:09:18 -04:00
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},
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2018-06-15 11:03:24 -04:00
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obj
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);
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2016-09-16 16:12:56 -04:00
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}
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2016-09-21 16:09:18 -04:00
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function loadImage(src) {
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2018-06-15 11:03:24 -04:00
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if (!src) {
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return Ember.RSVP.Promise.resolve();
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}
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2016-09-22 14:39:36 -04:00
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2016-09-16 16:12:56 -04:00
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const img = new Image();
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2016-09-22 14:39:36 -04:00
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img.src = getUrl(src);
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2018-06-15 11:03:24 -04:00
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return new Ember.RSVP.Promise(resolve => (img.onload = () => resolve(img)));
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}
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2016-09-16 16:12:56 -04:00
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export function parseColor(color) {
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const m = color.match(/^#([0-9a-f]{6})$/i);
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if (m) {
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const c = m[1];
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2018-06-15 11:03:24 -04:00
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return [
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parseInt(c.substr(0, 2), 16),
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parseInt(c.substr(2, 2), 16),
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parseInt(c.substr(4, 2), 16)
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];
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2016-09-16 16:12:56 -04:00
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}
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return [0, 0, 0];
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}
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export function brightness(color) {
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2018-06-15 11:03:24 -04:00
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return color[0] * 0.299 + color[1] * 0.587 + color[2] * 0.114;
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2016-09-16 16:12:56 -04:00
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}
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function rgbToHsl(r, g, b) {
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r /= 255;
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g /= 255;
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b /= 255;
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2018-06-15 11:03:24 -04:00
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let max = Math.max(r, g, b),
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min = Math.min(r, g, b);
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let h,
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s,
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l = (max + min) / 2;
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2016-09-16 16:12:56 -04:00
|
|
|
|
|
|
|
if (max === min) {
|
|
|
|
h = s = 0;
|
|
|
|
} else {
|
|
|
|
const d = max - min;
|
|
|
|
s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
|
2018-06-15 11:03:24 -04:00
|
|
|
switch (max) {
|
|
|
|
case r:
|
|
|
|
h = (g - b) / d + (g < b ? 6 : 0);
|
|
|
|
break;
|
|
|
|
case g:
|
|
|
|
h = (b - r) / d + 2;
|
|
|
|
break;
|
|
|
|
case b:
|
|
|
|
h = (r - g) / d + 4;
|
|
|
|
break;
|
2016-09-16 16:12:56 -04:00
|
|
|
}
|
|
|
|
h /= 6;
|
|
|
|
}
|
|
|
|
|
|
|
|
return [h, s, l];
|
|
|
|
}
|
|
|
|
|
|
|
|
function hue2rgb(p, q, t) {
|
2018-06-15 11:03:24 -04:00
|
|
|
if (t < 0) {
|
|
|
|
t += 1;
|
|
|
|
}
|
|
|
|
if (t > 1) {
|
|
|
|
t -= 1;
|
|
|
|
}
|
|
|
|
if (t < 1 / 6) {
|
|
|
|
return p + (q - p) * 6 * t;
|
|
|
|
}
|
|
|
|
if (t < 1 / 2) {
|
|
|
|
return q;
|
|
|
|
}
|
|
|
|
if (t < 2 / 3) {
|
|
|
|
return p + (q - p) * (2 / 3 - t) * 6;
|
|
|
|
}
|
2016-09-16 16:12:56 -04:00
|
|
|
return p;
|
|
|
|
}
|
|
|
|
|
|
|
|
function hslToRgb(h, s, l) {
|
|
|
|
let r, g, b;
|
|
|
|
|
|
|
|
if (s === 0) {
|
|
|
|
r = g = b = l; // achromatic
|
|
|
|
} else {
|
|
|
|
const q = l < 0.5 ? l * (1 + s) : l + s - l * s;
|
|
|
|
const p = 2 * l - q;
|
2018-06-15 11:03:24 -04:00
|
|
|
r = hue2rgb(p, q, h + 1 / 3);
|
2016-09-16 16:12:56 -04:00
|
|
|
g = hue2rgb(p, q, h);
|
2018-06-15 11:03:24 -04:00
|
|
|
b = hue2rgb(p, q, h - 1 / 3);
|
2016-09-16 16:12:56 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
return [r * 255, g * 255, b * 255];
|
|
|
|
}
|
|
|
|
|
|
|
|
export function lighten(color, percent) {
|
|
|
|
const hsl = rgbToHsl(color[0], color[1], color[2]);
|
|
|
|
const scale = percent / 100.0;
|
|
|
|
const diff = scale > 0 ? 1.0 - hsl[2] : hsl[2];
|
|
|
|
|
|
|
|
hsl[2] = hsl[2] + diff * scale;
|
|
|
|
color = hslToRgb(hsl[0], hsl[1], hsl[2]);
|
|
|
|
|
2018-06-15 11:03:24 -04:00
|
|
|
return (
|
|
|
|
"#" +
|
|
|
|
(0 | ((1 << 8) + color[0])).toString(16).substr(1) +
|
|
|
|
(0 | ((1 << 8) + color[1])).toString(16).substr(1) +
|
|
|
|
(0 | ((1 << 8) + color[2])).toString(16).substr(1)
|
|
|
|
);
|
2016-09-16 16:12:56 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
export function chooseBrighter(primary, secondary) {
|
|
|
|
const primaryCol = parseColor(primary);
|
|
|
|
const secondaryCol = parseColor(secondary);
|
2018-06-15 11:03:24 -04:00
|
|
|
return brightness(primaryCol) < brightness(secondaryCol)
|
|
|
|
? secondary
|
|
|
|
: primary;
|
2016-09-16 16:12:56 -04:00
|
|
|
}
|
|
|
|
|
2018-07-24 09:00:20 -04:00
|
|
|
export function chooseDarker(primary, secondary) {
|
|
|
|
if (chooseBrighter(primary, secondary) === primary) {
|
|
|
|
return secondary;
|
|
|
|
} else {
|
|
|
|
return primary;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-09-16 16:12:56 -04:00
|
|
|
export function darkLightDiff(adjusted, comparison, lightness, darkness) {
|
|
|
|
const adjustedCol = parseColor(adjusted);
|
|
|
|
const comparisonCol = parseColor(comparison);
|
2018-06-15 11:03:24 -04:00
|
|
|
return lighten(
|
|
|
|
adjustedCol,
|
|
|
|
brightness(adjustedCol) < brightness(comparisonCol) ? lightness : darkness
|
|
|
|
);
|
2016-09-16 16:12:56 -04:00
|
|
|
}
|
|
|
|
|
2016-09-21 16:09:18 -04:00
|
|
|
export function drawHeader(ctx, colors, width, headerHeight) {
|
2016-09-16 16:12:56 -04:00
|
|
|
ctx.save();
|
|
|
|
ctx.beginPath();
|
2016-09-21 16:09:18 -04:00
|
|
|
ctx.rect(0, 0, width, headerHeight);
|
2016-09-16 16:12:56 -04:00
|
|
|
ctx.fillStyle = colors.header_background;
|
|
|
|
ctx.shadowColor = "rgba(0, 0, 0, 0.25)";
|
|
|
|
ctx.shadowBlur = 2;
|
|
|
|
ctx.shadowOffsetX = 0;
|
|
|
|
ctx.shadowOffsetY = 2;
|
|
|
|
ctx.fill();
|
|
|
|
ctx.restore();
|
|
|
|
}
|