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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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