1/*
2 * Copyright (C) 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "Matrix3DTransformOperation.h"
28
29#include <algorithm>
30#include <wtf/text/TextStream.h>
31
32namespace WebCore {
33
34bool Matrix3DTransformOperation::operator==(const TransformOperation& other) const
35{
36 return isSameType(other) && m_matrix == downcast<Matrix3DTransformOperation>(other).m_matrix;
37}
38
39static Ref<TransformOperation> createOperation(TransformationMatrix& to, TransformationMatrix& from, double progress)
40{
41 to.blend(from, progress);
42 return Matrix3DTransformOperation::create(to);
43}
44
45Ref<TransformOperation> Matrix3DTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity)
46{
47 if (from && !from->isSameType(*this))
48 return *this;
49
50 // Convert the TransformOperations into matrices
51 FloatSize size;
52 TransformationMatrix fromT;
53 TransformationMatrix toT;
54 if (from)
55 from->apply(fromT, size);
56
57 apply(toT, size);
58
59 if (blendToIdentity)
60 return createOperation(fromT, toT, progress);
61 return createOperation(toT, fromT, progress);
62}
63
64bool Matrix3DTransformOperation::isRepresentableIn2D() const
65{
66 return m_matrix.isAffine();
67}
68
69void Matrix3DTransformOperation::dump(TextStream& ts) const
70{
71 ts << type() << "(" << m_matrix << ")";
72}
73
74} // namespace WebCore
75