1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
<!DOCTYPE html>
<title>Geometry Interfaces: DOMMatrix2DInit validate and fixup</title>
<link rel="help" href="https://drafts.fxtf.org/geometry/#dommatrixinit-dictionary">
<link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-context-2d-settransform">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/dommatrix-test-util.js"></script>
<canvas id=canvas hidden></canvas>
<script>
setup(() => {
window.canvas = document.getElementById('canvas');
window.ctx = canvas.getContext('2d');
window.ctx.fillStyle = '#000';
});
function clearCanvas(ctx) {
ctx.resetTransform();
ctx.clearRect(0, 0, window.canvas.width, window.canvas.height);
}
function drawRectWithSetTransform(ctx, transform) {
clearCanvas(ctx);
ctx.setTransform(transform);
ctx.fillRect(20, 20, 30, 30);
return window.canvas.toDataURL();
}
function drawRectWithAddPathTransform(ctx, transform) {
clearCanvas(ctx);
var path = new Path2D();
path.rect(20, 20, 30, 30);
var transformedPath = new Path2D();
if (transform === undefined) {
transformedPath.addPath(path);
} else {
transformedPath.addPath(path, transform);
}
ctx.fill(transformedPath);
return window.canvas.toDataURL();
}
[
{a: 1, m11: 2},
{b: 0, m12: -1},
{c: Infinity, m21: -Infinity},
{d: 0, m22: NaN},
{e: 1, m41: 1.00000001},
{f: 0, m42: Number.MIN_VALUE},
].forEach(dict => {
test(() => {
ctx.resetTransform();
assert_throws(new TypeError(), () => ctx.setTransform(dict));
}, `setTransform(${format_dict(dict)}) (invalid)`);
test(() => {
assert_throws(new TypeError(), () => drawRectWithAddPathTransform(ctx, dict));
}, `addPath(${format_dict(dict)}) (invalid)`);
});
test(() => {
ctx.resetTransform();
ctx.setTransform(1, 2, 3, 4, 5, 6);
const matrix = ctx.getTransform();
checkMatrix(matrix, matrix2D({m11: 1, m12: 2, m21: 3, m22: 4, m41: 5, m42: 6}));
}, `setTransform (Sanity check without dictionary)`);
test(() => {
var ident = matrix2D({});
var expectedResultURL = drawRectWithSetTransform(ctx, ident);
var actualResultURL = drawRectWithAddPathTransform(ctx);
assert_equals(actualResultURL, expectedResultURL);
}, `addPath (Sanity check without second parameter)`);
[
// Input dict that would throw if ignore3D was false
[{m13: 1, is2D: true}, matrix2D({})],
[{m14: 1, is2D: true}, matrix2D({})],
[{m23: 1, is2D: true}, matrix2D({})],
[{m24: 1, is2D: true}, matrix2D({})],
[{m31: 1, is2D: true}, matrix2D({})],
[{m32: 1, is2D: true}, matrix2D({})],
[{m33: 0, is2D: true}, matrix2D({})],
[{m33: -0, is2D: true}, matrix2D({})],
[{m33: -1, is2D: true}, matrix2D({})],
[{m34: 1, is2D: true}, matrix2D({})],
[{m43: 1, is2D: true}, matrix2D({})],
[{m44: 0, is2D: true}, matrix2D({})],
// Input dict that are 2D
[{}, matrix2D({})],
[{is2D: undefined}, matrix2D({})],
[{a: 1, m11: 1}, matrix2D({m11: 1})],
[{b: 0, m12: undefined}, matrix2D({m12: 0})],
[{c: 0, m21: 0}, matrix2D({m21: 0})],
[{c: 0, m21: -0}, matrix2D({m21: -0})],
[{c: -0, m21: 0}, matrix2D({m21: 0})],
[{c: -0, m21: -0}, matrix2D({m21: -0})],
[{d: Infinity, m22: Infinity}, matrix2D({})], // should be silently ignored
[{e: -Infinity, m41: -Infinity}, matrix2D({})], // should be silently ignored
[{f: NaN, m42: NaN}, matrix2D({})], // should be silently ignored
[{f: NaN, m42: NaN, is2D: true}, matrix2D({})], // should be silently ignored
[{f: 0, m42: null}, matrix2D({m42: 0})], // null is converted to 0
[{f: -0, m42: null}, matrix2D({m42: 0})], // null is converted to 0
[{a: 2}, matrix2D({m11: 2})],
[{b: 2}, matrix2D({m12: 2})],
[{c: 2}, matrix2D({m21: 2})],
[{d: 2}, matrix2D({m22: 2})],
[{e: 2}, matrix2D({m41: 2})],
[{f: 2}, matrix2D({m42: 2})],
[{a: -0, b: -0, c: -0, d: -0, e: -0, f: -0},
matrix2D({m11: -0, m12: -0, m21: -0, m22: -0, m41: -0, m42: -0})],
[{a: -0, b: -0, c: -0, d: -0, e: -0, f: -0, is2D: true},
matrix2D({m11: -0, m12: -0, m21: -0, m22: -0, m41: -0, m42: -0})],
[{m11:2}, matrix2D({m11: 2})],
[{m12:2}, matrix2D({m12: 2})],
[{m21:2}, matrix2D({m21: 2})],
[{m22:2}, matrix2D({m22: 2})],
[{m41:2}, matrix2D({m41: 2})],
[{m42:2}, matrix2D({m42: 2})],
[{m11: -0, m12: -0, m21: -0, m22: -0, m41: -0, m42: -0},
matrix2D({m11: -0, m12: -0, m21: -0, m22: -0, m41: -0, m42: -0})],
[{m11: -0, m12: -0, m21: -0, m22: -0, m41: -0, m42: -0, is2D: true},
matrix2D({m11: -0, m12: -0, m21: -0, m22: -0, m41: -0, m42: -0})],
[{m13: 0, is2D: true}, matrix2D({})],
[{m13: -0, is2D: true}, matrix2D({})],
[{m14: 0, is2D: true}, matrix2D({})],
[{m14: -0, is2D: true}, matrix2D({})],
[{m23: 0, is2D: true}, matrix2D({})],
[{m23: -0, is2D: true}, matrix2D({})],
[{m24: 0, is2D: true}, matrix2D({})],
[{m24: -0, is2D: true}, matrix2D({})],
[{m31: 0, is2D: true}, matrix2D({})],
[{m31: -0, is2D: true}, matrix2D({})],
[{m32: 0, is2D: true}, matrix2D({})],
[{m32: -0, is2D: true}, matrix2D({})],
[{m33: 1, is2D: true}, matrix2D({})],
[{m34: 0, is2D: true}, matrix2D({})],
[{m34: -0, is2D: true}, matrix2D({})],
[{m43: 0, is2D: true}, matrix2D({})],
[{m43: -0, is2D: true}, matrix2D({})],
[{m44: 1, is2D: true}, matrix2D({})],
[{is2D: true}, matrix2D({})],
// Input dict that are 3D, but 3D members are ignored
[{m13: 1, is2D: false}, matrix2D({})],
[{m14: 1, is2D: false}, matrix2D({})],
[{m23: 1, is2D: false}, matrix2D({})],
[{m24: 1, is2D: false}, matrix2D({})],
[{m31: 1, is2D: false}, matrix2D({})],
[{m32: 1, is2D: false}, matrix2D({})],
[{m33: 0, is2D: false}, matrix2D({})],
[{m33: -0, is2D: false}, matrix2D({})],
[{m33: -1, is2D: false}, matrix2D({})],
[{m34: 1, is2D: false}, matrix2D({})],
[{m43: 1, is2D: false}, matrix2D({})],
[{m44: 0, is2D: false}, matrix2D({})],
[{m13: 1}, matrix2D({})],
[{m14: 1}, matrix2D({})],
[{m23: 1}, matrix2D({})],
[{m24: 1}, matrix2D({})],
[{m31: 1}, matrix2D({})],
[{m32: 1}, matrix2D({})],
[{m33: 0}, matrix2D({})],
[{m34: 1}, matrix2D({})],
[{m43: 1}, matrix2D({})],
[{m44: 0}, matrix2D({})],
[{is2D: false}, matrix2D({})],
[{is2D: null}, matrix2D({})],
].forEach(([dict, expected]) => {
test(() => {
ctx.resetTransform();
ctx.setTransform(dict);
const matrix = ctx.getTransform();
checkMatrix(matrix, expected);
}, `setTransform(${format_dict(dict)})`);
test(() => {
var expectedResultURL = drawRectWithSetTransform(ctx, expected);
var actualResultURL = drawRectWithAddPathTransform(ctx, expected);
assert_equals(actualResultURL, expectedResultURL);
}, `addPath(${format_dict(dict)})`);
});
</script>
|
