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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "core/geometry/DOMPointReadOnly.h" | |
6 | |
7 #include "bindings/core/v8/ExceptionState.h" | |
8 #include "bindings/core/v8/ScriptValue.h" | |
9 #include "bindings/core/v8/V8ObjectBuilder.h" | |
10 #include "core/geometry/DOMMatrixInit.h" | |
11 #include "core/geometry/DOMMatrixReadOnly.h" | |
12 #include "core/geometry/DOMPoint.h" | |
13 #include "core/geometry/DOMPointInit.h" | |
14 | |
15 namespace blink { | |
16 | |
17 DOMPointReadOnly* DOMPointReadOnly::create(double x, | |
18 double y, | |
19 double z, | |
20 double w) { | |
21 return new DOMPointReadOnly(x, y, z, w); | |
22 } | |
23 | |
24 ScriptValue DOMPointReadOnly::toJSONForBinding(ScriptState* scriptState) const { | |
25 V8ObjectBuilder result(scriptState); | |
26 result.addNumber("x", x()); | |
27 result.addNumber("y", y()); | |
28 result.addNumber("z", z()); | |
29 result.addNumber("w", w()); | |
30 return result.scriptValue(); | |
31 } | |
32 | |
33 DOMPointReadOnly* DOMPointReadOnly::fromPoint(const DOMPointInit& other) { | |
34 return new DOMPointReadOnly(other.x(), other.y(), other.z(), other.w()); | |
35 } | |
36 | |
37 DOMPoint* DOMPointReadOnly::matrixTransform(DOMMatrixInit& other, | |
38 ExceptionState& exceptionState) { | |
39 DOMMatrixReadOnly* matrix = | |
40 DOMMatrixReadOnly::fromMatrix(other, exceptionState); | |
41 | |
42 if (matrix->is2D() && z() == 0 && w() == 1) { | |
43 double transformedX = | |
44 x() * matrix->m11() + y() * matrix->m12() + matrix->m41(); | |
45 double transformedY = | |
46 x() * matrix->m12() + y() * matrix->m22() + matrix->m42(); | |
47 return DOMPoint::create(transformedX, transformedY, 0, 1); | |
48 } | |
49 | |
50 double transformedX = x() * matrix->m11() + y() * matrix->m21() + | |
51 z() * matrix->m31() + w() * matrix->m41(); | |
52 double transformedY = x() * matrix->m12() + y() * matrix->m22() + | |
53 z() * matrix->m32() + w() * matrix->m42(); | |
54 double transformedZ = x() * matrix->m13() + y() * matrix->m23() + | |
55 z() * matrix->m33() + w() * matrix->m43(); | |
56 double transformedW = x() * matrix->m14() + y() * matrix->m24() + | |
57 z() * matrix->m34() + w() * matrix->m44(); | |
58 return DOMPoint::create(transformedX, transformedY, transformedZ, | |
59 transformedW); | |
60 } | |
61 | |
62 DOMPointReadOnly::DOMPointReadOnly(double x, double y, double z, double w) | |
63 : m_x(x), m_y(y), m_z(z), m_w(w) {} | |
64 | |
65 } // namespace blink | |
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