486aecf130
Change-Id: I384e4f37fa274665438b523f0636bfc1856ec0ae Reviewed-on: https://skia-review.googlesource.com/c/skia/+/264574 Reviewed-by: Ben Wagner <bungeman@google.com>
517 lines
19 KiB
JavaScript
517 lines
19 KiB
JavaScript
describe('CanvasKit\'s Path Behavior', function() {
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let container = document.createElement('div');
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document.body.appendChild(container);
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const CANVAS_WIDTH = 600;
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const CANVAS_HEIGHT = 600;
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beforeEach(function() {
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container.innerHTML = `
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<canvas width=600 height=600 id=test></canvas>
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<canvas width=600 height=600 id=report></canvas>`;
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});
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afterEach(function() {
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container.innerHTML = '';
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});
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let notoSerifFontBuffer = null;
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// This font is known to support kerning
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const notoSerifFontLoaded = fetch('/assets/NotoSerif-Regular.ttf').then(
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(response) => response.arrayBuffer()).then(
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(buffer) => {
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notoSerifFontBuffer = buffer;
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});
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let notoSerifBoldItalicFontBuffer = null;
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const notoSerifBoldItalicFontLoaded = fetch('/assets/NotoSerif-BoldItalic.ttf').then(
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(response) => response.arrayBuffer()).then(
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(buffer) => {
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notoSerifBoldItalicFontBuffer = buffer;
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});
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let emojiFontBuffer = null;
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const emojiFontLoaded = fetch('/assets/NotoColorEmoji.ttf').then(
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(response) => response.arrayBuffer()).then(
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(buffer) => {
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emojiFontBuffer = buffer;
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});
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it('draws shaped text in a paragraph', function(done) {
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Promise.all([LoadCanvasKit, notoSerifFontLoaded]).then(catchException(done, () => {
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const surface = CanvasKit.MakeCanvasSurface('test');
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expect(surface).toBeTruthy('Could not make surface')
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if (!surface) {
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done();
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return;
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}
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const canvas = surface.getCanvas();
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const paint = new CanvasKit.SkPaint();
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paint.setColor(CanvasKit.RED);
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paint.setStyle(CanvasKit.PaintStyle.Stroke);
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const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer);
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expect(fontMgr.countFamilies()).toEqual(1);
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expect(fontMgr.getFamilyName(0)).toEqual('Noto Serif');
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const wrapTo = 200;
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const paraStyle = new CanvasKit.ParagraphStyle({
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textStyle: {
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color: CanvasKit.BLACK,
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fontFamilies: ['Noto Serif'],
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fontSize: 20,
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},
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textAlign: CanvasKit.TextAlign.Center,
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maxLines: 8,
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ellipsis: '.._.',
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});
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const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
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builder.addText('VAVAVAVAVAVAVA\nVAVA\n');
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const blueText = new CanvasKit.TextStyle({
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backgroundColor: CanvasKit.Color(234, 208, 232), // light pink
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color: CanvasKit.Color(48, 37, 199),
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fontFamilies: ['Noto Serif'],
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decoration: CanvasKit.LineThroughDecoration,
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decorationThickness: 1.5, // multiplier based on font size
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fontSize: 24,
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});
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builder.pushStyle(blueText)
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builder.addText(`Gosh I hope this wraps at some point, it is such a long line.`)
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builder.pop();
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builder.addText(` I'm done with the blue now. `)
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builder.addText(`Now I hope we should stop before we get 8 lines tall. `);
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const paragraph = builder.build();
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paragraph.layout(wrapTo);
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expect(paragraph.didExceedMaxLines()).toBeTruthy();
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expect(paragraph.getAlphabeticBaseline()).toBeCloseTo(21.377, 3);
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expect(paragraph.getHeight()).toEqual(240);
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expect(paragraph.getIdeographicBaseline()).toBeCloseTo(27.236, 3);
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expect(paragraph.getLongestLine()).toBeCloseTo(193.820, 3);
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expect(paragraph.getMaxIntrinsicWidth()).toBeCloseTo(1444.250, 3);
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expect(paragraph.getMaxWidth()).toEqual(200);
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expect(paragraph.getMinIntrinsicWidth()).toBeCloseTo(172.360, 3);
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expect(paragraph.getWordBoundary(8)).toEqual({
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start: 0,
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end: 14,
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});
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expect(paragraph.getWordBoundary(25)).toEqual({
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start: 25,
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end: 26,
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});
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canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, 230), paint);
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canvas.drawParagraph(paragraph, 10, 10);
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surface.flush();
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paint.delete();
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fontMgr.delete();
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reportSurface(surface, 'paragraph_basic', done);
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}));
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});
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it('provides rectangles around glyph ranges', function(done) {
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// loosely based on SkParagraph_GetRectsForRangeParagraph test in c++ code.
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Promise.all([LoadCanvasKit, notoSerifFontLoaded]).then(catchException(done, () => {
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const surface = CanvasKit.MakeCanvasSurface('test');
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expect(surface).toBeTruthy('Could not make surface')
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if (!surface) {
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done();
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return;
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}
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const canvas = surface.getCanvas();
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const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer);
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const wrapTo = 550;
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const hStyle = CanvasKit.RectHeightStyle.Max;
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const wStyle = CanvasKit.RectWidthStyle.Tight;
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const paraStyle = new CanvasKit.ParagraphStyle({
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textStyle: {
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color: CanvasKit.BLACK,
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fontFamilies: ['Noto Serif'],
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fontSize: 50,
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},
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textAlign: CanvasKit.TextAlign.Left,
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maxLines: 10,
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});
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const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
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builder.addText('12345, \"67890\" 12345 67890 12345 67890 12345 67890 12345 67890 12345 67890 12345');
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const paragraph = builder.build();
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paragraph.layout(wrapTo);
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const ranges = [
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{
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start: 0,
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end: 0,
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expectedNum: 0,
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},
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{
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start: 0,
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end: 1,
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expectedNum: 1,
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color: CanvasKit.Color(200, 0, 200),
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},
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{
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start: 2,
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end: 8,
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expectedNum: 1,
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color: CanvasKit.Color(255, 0, 0),
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},
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{
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start: 8,
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end: 21,
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expectedNum: 1,
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color: CanvasKit.Color(0, 255, 0),
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},
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{
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start: 30,
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end: 100,
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expectedNum: 4,
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color: CanvasKit.Color(0, 0, 255),
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},
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{
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start: 19,
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end: 22,
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expectedNum: 1,
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color: CanvasKit.Color(0, 200, 200),
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}
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];
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// Move it down a bit so we can see the rects that go above 0,0
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canvas.translate(10, 10);
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canvas.drawParagraph(paragraph, 0, 0);
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for (const test of ranges) {
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let rects = paragraph.getRectsForRange(test.start, test.end, hStyle, wStyle);
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expect(Array.isArray(rects)).toEqual(true);
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expect(rects.length).toEqual(test.expectedNum);
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for (const rect of rects) {
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expect(rect.direction).toEqual(CanvasKit.TextDirection.LTR);
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const p = new CanvasKit.SkPaint();
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p.setColor(test.color);
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p.setStyle(CanvasKit.PaintStyle.Stroke);
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canvas.drawRect(rect, p);
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p.delete();
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}
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}
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surface.flush();
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fontMgr.delete();
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reportSurface(surface, 'paragraph_rects', done);
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}));
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});
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it('can draw emojis', function(done) {
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Promise.all([LoadCanvasKit, notoSerifFontLoaded, emojiFontLoaded]).then(catchException(done, () => {
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const surface = CanvasKit.MakeCanvasSurface('test');
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expect(surface).toBeTruthy('Could not make surface')
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if (!surface) {
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done();
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return;
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}
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const canvas = surface.getCanvas();
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const fontMgr = CanvasKit.SkFontMgr.FromData([notoSerifFontBuffer, emojiFontBuffer]);
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expect(fontMgr.countFamilies()).toEqual(2);
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expect(fontMgr.getFamilyName(0)).toEqual('Noto Serif');
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expect(fontMgr.getFamilyName(1)).toEqual('Noto Color Emoji');
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const wrapTo = 450;
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const paraStyle = new CanvasKit.ParagraphStyle({
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textStyle: {
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color: CanvasKit.BLACK,
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// Put text first, otherwise the "emoji space" is used and that looks bad.
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fontFamilies: ['Noto Serif', 'Noto Color Emoji'],
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fontSize: 30,
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},
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textAlign: CanvasKit.TextAlign.Left,
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maxLines: 10,
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});
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const textStyle = new CanvasKit.TextStyle({
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color: CanvasKit.BLACK,
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// The number 4 matches an emoji and looks strange w/o this additional style.
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fontFamilies: ['Noto Serif'],
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fontSize: 30,
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});
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const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
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builder.pushStyle(textStyle);
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builder.addText('4 flags on following line:\n');
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builder.pop();
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builder.addText(`🏳️🌈 🇮🇹 🇱🇷 🇺🇸\n`);
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builder.addText('Rainbow Italy Liberia USA\n\n');
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builder.addText('Emoji below should wrap:\n');
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builder.addText(`🍕🍔🍟🥝🍱🕶🎩👩👩👦👩👩👧👧👩👩👦👩👩👧👧👩👩👦👩👩👧👧👩👩👦👩👩👧👧👩👩👦👩👩👧👧👩👩👦👩👩👧👧👩👩👦👩👩👧👧`);
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const paragraph = builder.build();
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paragraph.layout(wrapTo);
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canvas.drawParagraph(paragraph, 10, 10);
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const paint = new CanvasKit.SkPaint();
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paint.setColor(CanvasKit.RED);
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paint.setStyle(CanvasKit.PaintStyle.Stroke);
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canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, wrapTo+10), paint);
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surface.flush();
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fontMgr.delete();
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paint.delete();
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builder.delete();
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reportSurface(surface, 'paragraph_emoji', done);
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}));
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});
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it('can do hit detection on ascii', function(done) {
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Promise.all([LoadCanvasKit, notoSerifFontLoaded]).then(catchException(done, () => {
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const surface = CanvasKit.MakeCanvasSurface('test');
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expect(surface).toBeTruthy('Could not make surface')
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if (!surface) {
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done();
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return;
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}
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const canvas = surface.getCanvas();
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const fontMgr = CanvasKit.SkFontMgr.FromData([notoSerifFontBuffer]);
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const wrapTo = 300;
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const paraStyle = new CanvasKit.ParagraphStyle({
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textStyle: {
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color: CanvasKit.BLACK,
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fontFamilies: ['Noto Serif'],
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fontSize: 50,
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},
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textAlign: CanvasKit.TextAlign.Left,
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maxLines: 10,
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});
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const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
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builder.addText('UNCOPYRIGHTABLE');
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const paragraph = builder.build();
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paragraph.layout(wrapTo);
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canvas.translate(10, 10);
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canvas.drawParagraph(paragraph, 0, 0);
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const paint = new CanvasKit.SkPaint();
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paint.setColor(CanvasKit.Color(255, 0, 0));
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paint.setStyle(CanvasKit.PaintStyle.Fill);
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canvas.drawCircle(20, 30, 3, paint);
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paint.setColor(CanvasKit.Color(0, 0, 255));
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canvas.drawCircle(80, 90, 3, paint);
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paint.setColor(CanvasKit.Color(0, 255, 0));
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canvas.drawCircle(280, 2, 3, paint);
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let posU = paragraph.getGlyphPositionAtCoordinate(20, 30);
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expect(posU).toEqual({
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pos: 1,
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affinity: CanvasKit.Affinity.Upstream
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});
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let posA = paragraph.getGlyphPositionAtCoordinate(80, 90);
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expect(posA).toEqual({
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pos: 11,
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affinity: CanvasKit.Affinity.Downstream
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});
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let posG = paragraph.getGlyphPositionAtCoordinate(280, 2);
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expect(posG).toEqual({
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pos: 9,
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affinity: CanvasKit.Affinity.Upstream
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});
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surface.flush();
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fontMgr.delete();
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reportSurface(surface, 'paragraph_hits', done);
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}));
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});
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it('supports font styles', function(done) {
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Promise.all([LoadCanvasKit, notoSerifFontLoaded, notoSerifBoldItalicFontLoaded]).then(catchException(done, () => {
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const surface = CanvasKit.MakeCanvasSurface('test');
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expect(surface).toBeTruthy('Could not make surface')
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if (!surface) {
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done();
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return;
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}
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const canvas = surface.getCanvas();
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const paint = new CanvasKit.SkPaint();
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paint.setColor(CanvasKit.RED);
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paint.setStyle(CanvasKit.PaintStyle.Stroke);
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const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer, notoSerifBoldItalicFontBuffer);
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const wrapTo = 250;
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const paraStyle = new CanvasKit.ParagraphStyle({
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textStyle: {
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fontFamilies: ['Noto Serif'],
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fontSize: 20,
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fontStyle: {
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weight: CanvasKit.FontWeight.Light,
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}
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},
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textDirection: CanvasKit.TextDirection.RTL,
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disableHinting: true,
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});
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const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
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builder.addText('Default text\n');
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const boldItalic = new CanvasKit.TextStyle({
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color: CanvasKit.RED,
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fontFamilies: ['Noto Serif'],
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fontSize: 20,
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fontStyle: {
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weight: CanvasKit.FontWeight.Bold,
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width: CanvasKit.FontWidth.Expanded,
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slant: CanvasKit.FontSlant.Italic,
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}
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});
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builder.pushStyle(boldItalic)
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builder.addText(`Bold, Expanded, Italic\n`)
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builder.pop();
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builder.addText(`back to normal`);
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const paragraph = builder.build();
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paragraph.layout(wrapTo);
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canvas.clear(CanvasKit.Color(250, 250, 250));
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canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, wrapTo+10), paint);
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canvas.drawParagraph(paragraph, 10, 10);
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surface.flush();
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paint.delete();
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fontMgr.delete();
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reportSurface(surface, 'paragraph_styles', done);
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}));
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});
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it('should not crash if we omit font family on pushed textStyle', function(done) {
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Promise.all([LoadCanvasKit, notoSerifFontLoaded, notoSerifBoldItalicFontLoaded]).then(catchException(done, () => {
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const surface = CanvasKit.MakeCanvasSurface('test');
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expect(surface).toBeTruthy('Could not make surface')
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if (!surface) {
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done();
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return;
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}
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const canvas = surface.getCanvas();
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const paint = new CanvasKit.SkPaint();
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paint.setColor(CanvasKit.RED);
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paint.setStyle(CanvasKit.PaintStyle.Stroke);
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const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer, notoSerifBoldItalicFontBuffer);
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const wrapTo = 250;
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const paraStyle = new CanvasKit.ParagraphStyle({
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textStyle: {
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fontFamilies: ['Noto Serif'],
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fontSize: 20,
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},
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textDirection: CanvasKit.TextDirection.RTL,
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disableHinting: true,
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});
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const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
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builder.addText('Default text\n');
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const boldItalic = new CanvasKit.TextStyle({
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fontStyle: {
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weight: CanvasKit.FontWeight.Bold,
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slant: CanvasKit.FontSlant.Italic,
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}
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});
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builder.pushStyle(boldItalic)
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builder.addText(`Bold, Italic\n`); // doesn't show up, but we don't crash
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builder.pop();
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builder.addText(`back to normal`);
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const paragraph = builder.build();
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paragraph.layout(wrapTo);
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canvas.clear(CanvasKit.Color(250, 250, 250));
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canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, wrapTo+10), paint);
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canvas.drawParagraph(paragraph, 10, 10);
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surface.flush();
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paragraph.delete();
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paint.delete();
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fontMgr.delete();
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done();
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}));
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});
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it('should not crash if we omit font family on paragraph style', function(done) {
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Promise.all([LoadCanvasKit, notoSerifFontLoaded, notoSerifBoldItalicFontLoaded]).then(catchException(done, () => {
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const surface = CanvasKit.MakeCanvasSurface('test');
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expect(surface).toBeTruthy('Could not make surface')
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if (!surface) {
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done();
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return;
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}
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const canvas = surface.getCanvas();
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const paint = new CanvasKit.SkPaint();
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paint.setColor(CanvasKit.RED);
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paint.setStyle(CanvasKit.PaintStyle.Stroke);
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const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer, notoSerifBoldItalicFontBuffer);
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const wrapTo = 250;
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const paraStyle = new CanvasKit.ParagraphStyle({
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textStyle: {
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fontSize: 20,
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},
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textDirection: CanvasKit.TextDirection.RTL,
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disableHinting: true,
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});
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const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
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builder.addText('Default text\n');
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const boldItalic = new CanvasKit.TextStyle({
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fontStyle: {
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weight: CanvasKit.FontWeight.Bold,
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slant: CanvasKit.FontSlant.Italic,
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}
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});
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builder.pushStyle(boldItalic)
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builder.addText(`Bold, Italic\n`);
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builder.pop();
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builder.addText(`back to normal`);
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const paragraph = builder.build();
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paragraph.layout(wrapTo);
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|
canvas.clear(CanvasKit.Color(250, 250, 250));
|
|
canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, wrapTo+10), paint);
|
|
canvas.drawParagraph(paragraph, 10, 10);
|
|
|
|
surface.flush();
|
|
|
|
paragraph.delete();
|
|
paint.delete();
|
|
fontMgr.delete();
|
|
done();
|
|
}));
|
|
});
|
|
|
|
});
|