1/*
2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
3 * (C) 2000 Antti Koivisto (koivisto@kde.org)
4 * (C) 2000 Dirk Mueller (mueller@kde.org)
5 * Copyright (C) 2003, 2005-2008, 2017 Apple Inc. All rights reserved.
6 * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB. If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 *
23 */
24
25#pragma once
26
27#include "TransformOperation.h"
28#include <wtf/Ref.h>
29
30namespace WebCore {
31
32class ScaleTransformOperation final : public TransformOperation {
33public:
34 static Ref<ScaleTransformOperation> create(double sx, double sy, OperationType type)
35 {
36 return adoptRef(*new ScaleTransformOperation(sx, sy, 1, type));
37 }
38
39 static Ref<ScaleTransformOperation> create(double sx, double sy, double sz, OperationType type)
40 {
41 return adoptRef(*new ScaleTransformOperation(sx, sy, sz, type));
42 }
43
44 Ref<TransformOperation> clone() const override
45 {
46 return adoptRef(*new ScaleTransformOperation(m_x, m_y, m_z, type()));
47 }
48
49 double x() const { return m_x; }
50 double y() const { return m_y; }
51 double z() const { return m_z; }
52
53private:
54 bool isIdentity() const override { return m_x == 1 && m_y == 1 && m_z == 1; }
55 bool isAffectedByTransformOrigin() const override { return !isIdentity(); }
56 bool isRepresentableIn2D() const final { return m_z == 1; }
57
58 bool operator==(const TransformOperation&) const override;
59
60 bool apply(TransformationMatrix& transform, const FloatSize&) const override
61 {
62 transform.scale3d(m_x, m_y, m_z);
63 return false;
64 }
65
66 Ref<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) override;
67
68 void dump(WTF::TextStream&) const final;
69
70 ScaleTransformOperation(double sx, double sy, double sz, OperationType type)
71 : TransformOperation(type)
72 , m_x(sx)
73 , m_y(sy)
74 , m_z(sz)
75 {
76 ASSERT(isScaleTransformOperationType());
77 }
78
79 double m_x;
80 double m_y;
81 double m_z;
82};
83
84} // namespace WebCore
85
86SPECIALIZE_TYPE_TRAITS_TRANSFORMOPERATION(WebCore::ScaleTransformOperation, isScaleTransformOperationType())
87