88 lines
2.9 KiB
JavaScript
88 lines
2.9 KiB
JavaScript
import Feature from '../../../../../src/ol/Feature.js';
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import MultiPolygon from '../../../../../src/ol/geom/MultiPolygon.js';
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import Polygon from '../../../../../src/ol/geom/Polygon.js';
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import TextBuilder from '../../../../../src/ol/render/canvas/TextBuilder.js';
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import Executor from '../../../../../src/ol/render/canvas/Executor.js';
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import Text from '../../../../../src/ol/style/Text.js';
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import {create as createTransform} from '../../../../../src/ol/transform.js';
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function createBuilder() {
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return new TextBuilder(1, [-180, -90, 180, 90], 0.02, 1, true);
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}
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function createContext() {
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return {
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fill: function() {},
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stroke: function() {},
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beginPath: function() {},
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clip: function() {},
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moveTo: function() {},
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lineTo: function() {},
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closePath: function() {},
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setLineDash: function() {},
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save: function() {},
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restore: function() {}
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};
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}
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function executeInstructions(builder, expectedDrawTextImageCalls, expectedBuilderImageCalls) {
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const transform = createTransform();
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const context = createContext();
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const executor = new Executor(0.02, 1, false, null, builder.finish());
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sinon.spy(executor, 'drawTextImageWithPointPlacement_');
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const replayImageStub = sinon.stub(executor, 'replayImage_');
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executor.execute(context, transform);
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expect(executor.drawTextImageWithPointPlacement_.callCount).to.be(expectedDrawTextImageCalls);
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expect(replayImageStub.callCount).to.be(expectedBuilderImageCalls);
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}
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describe('ol.render.canvas.TextBuilder', function() {
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it('renders polygon labels only when they fit', function() {
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let builder = createBuilder();
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const geometry = new Polygon([[[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]]]);
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const feature = new Feature(geometry);
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builder.setTextStyle(new Text({
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text: 'This is a long text'
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}));
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builder.drawText(geometry, feature);
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expect(builder.instructions.length).to.be(3);
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executeInstructions(builder, 1, 0);
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builder = createBuilder();
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builder.setTextStyle(new Text({
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text: 'short'
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}));
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builder.drawText(geometry, feature);
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expect(builder.instructions.length).to.be(3);
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executeInstructions(builder, 1, 1);
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});
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it('renders multipolygon labels only when they fit', function() {
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const geometry = new MultiPolygon([
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[[[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]]],
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[[[1, 1], [1, 2], [2, 2], [2, 1], [1, 1]]]
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]);
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const feature = new Feature(geometry);
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let builder = createBuilder();
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builder.setTextStyle(new Text({
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text: 'This is a long text'
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}));
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builder.drawText(geometry, feature);
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expect(builder.instructions.length).to.be(3);
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executeInstructions(builder, 1, 0);
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builder = createBuilder();
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builder.setTextStyle(new Text({
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text: 'short'
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}));
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builder.drawText(geometry, feature);
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expect(builder.instructions.length).to.be(3);
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executeInstructions(builder, 1, 2);
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});
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});
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