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 "TransformationMatrix.h"
29#include <wtf/Ref.h>
30
31namespace WebCore {
32
33class MatrixTransformOperation final : public TransformOperation {
34public:
35 static Ref<MatrixTransformOperation> create(double a, double b, double c, double d, double e, double f)
36 {
37 return adoptRef(*new MatrixTransformOperation(a, b, c, d, e, f));
38 }
39
40 static Ref<MatrixTransformOperation> create(const TransformationMatrix& t)
41 {
42 return adoptRef(*new MatrixTransformOperation(t));
43 }
44
45 Ref<TransformOperation> clone() const override
46 {
47 return adoptRef(*new MatrixTransformOperation(matrix()));
48 }
49
50 TransformationMatrix matrix() const { return TransformationMatrix(m_a, m_b, m_c, m_d, m_e, m_f); }
51
52private:
53 bool isIdentity() const override { return m_a == 1 && m_b == 0 && m_c == 0 && m_d == 1 && m_e == 0 && m_f == 0; }
54 bool isAffectedByTransformOrigin() const override { return !isIdentity(); }
55
56 bool operator==(const TransformOperation&) const override;
57
58 bool apply(TransformationMatrix& transform, const FloatSize&) const override
59 {
60 TransformationMatrix matrix(m_a, m_b, m_c, m_d, m_e, m_f);
61 transform.multiply(matrix);
62 return false;
63 }
64
65 Ref<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) override;
66
67 void dump(WTF::TextStream&) const final;
68
69 MatrixTransformOperation(double a, double b, double c, double d, double e, double f)
70 : TransformOperation(MATRIX)
71 , m_a(a)
72 , m_b(b)
73 , m_c(c)
74 , m_d(d)
75 , m_e(e)
76 , m_f(f)
77 {
78 }
79
80 MatrixTransformOperation(const TransformationMatrix& t)
81 : TransformOperation(MATRIX)
82 , m_a(t.a())
83 , m_b(t.b())
84 , m_c(t.c())
85 , m_d(t.d())
86 , m_e(t.e())
87 , m_f(t.f())
88 {
89 }
90
91 double m_a;
92 double m_b;
93 double m_c;
94 double m_d;
95 double m_e;
96 double m_f;
97};
98
99} // namespace WebCore
100
101SPECIALIZE_TYPE_TRAITS_TRANSFORMOPERATION(WebCore::MatrixTransformOperation, type() == WebCore::TransformOperation::MATRIX)
102