LayoutTests/fast/canvas/pointInPath.js

description("Series of tests for Canvas.isPointInPath");

ctx = document.getElementById("canvas").getContext("2d");
ctx.save();
debug("Rectangle at (0,0) 20x20");
ctx.rect(0, 0, 20, 20);
shouldBe("ctx.isPointInPath(5, 5)", "true");
shouldBe("ctx.isPointInPath(10, 10)", "true");
shouldBe("ctx.isPointInPath(19, 19)", "true");
shouldBe("ctx.isPointInPath(30, 30)", "false");
shouldBe("ctx.isPointInPath(-1, 10)", "false");
shouldBe("ctx.isPointInPath(10, -1)", "false");
debug("Translate context (10,10)");
ctx.translate(10,10);
shouldBe("ctx.isPointInPath(5, 5)", "true");
shouldBe("ctx.isPointInPath(10, 10)", "true");
shouldBe("ctx.isPointInPath(19, 19)", "true");
shouldBe("ctx.isPointInPath(30, 30)", "false");
shouldBe("ctx.isPointInPath(-1, 10)", "false");
shouldBe("ctx.isPointInPath(10, -1)", "false");
debug("Collapse ctm to non-invertible matrix");
ctx.scale(0,0);
shouldBe("ctx.isPointInPath(5, 5)", "false");
shouldBe("ctx.isPointInPath(10, 10)", "false");
shouldBe("ctx.isPointInPath(20, 20)", "false");
shouldBe("ctx.isPointInPath(30, 30)", "false");
shouldBe("ctx.isPointInPath(-1, 10)", "false");
shouldBe("ctx.isPointInPath(10, -1)", "false");
debug("Resetting context to a clean state");
ctx.restore();

ctx.save();
ctx.beginPath();
debug("Translate context (10,10)");
ctx.translate(10,10);
debug("Rectangle at (0,0) 20x20");
ctx.rect(0, 0, 20, 20);
shouldBe("ctx.isPointInPath(5, 5)", "false");
shouldBe("ctx.isPointInPath(10, 10)", "true");
shouldBe("ctx.isPointInPath(20, 20)", "true");
shouldBe("ctx.isPointInPath(29, 29)", "true");
shouldBe("ctx.isPointInPath(-1, 10)", "false");
shouldBe("ctx.isPointInPath(10, -1)", "false");
ctx.restore();

ctx.save();
ctx.beginPath();
debug("Translate context (10,20)");
ctx.translate(10,20);
debug("Transform context (1, 0, 0, -1, 0, 0)");
ctx.transform(1, 0, 0, -1, 0, 0);
debug("Rectangle at (0,0) 20x20");
ctx.rect(0, 0, 20, 20);
// After the flip, rect is actually 10, 0, 20, 20
shouldBe("ctx.isPointInPath(5, 5)", "false");
shouldBe("ctx.isPointInPath(10, 0)", "true");
shouldBe("ctx.isPointInPath(29, 0)", "true");
shouldBe("ctx.isPointInPath(10, 19)", "true");
shouldBe("ctx.isPointInPath(21, 10)", "true");
shouldBe("ctx.isPointInPath(29, 19)", "true");
ctx.strokeStyle = 'green';
ctx.stroke();
ctx.restore();