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 "Length.h"
28#include "LengthFunctions.h"
29#include "TransformOperation.h"
30#include <wtf/Ref.h>
31
32namespace WebCore {
33
34class TranslateTransformOperation final : public TransformOperation {
35public:
36 static Ref<TranslateTransformOperation> create(const Length& tx, const Length& ty, OperationType type)
37 {
38 return adoptRef(*new TranslateTransformOperation(tx, ty, Length(0, Fixed), type));
39 }
40
41 static Ref<TranslateTransformOperation> create(const Length& tx, const Length& ty, const Length& tz, OperationType type)
42 {
43 return adoptRef(*new TranslateTransformOperation(tx, ty, tz, type));
44 }
45
46 Ref<TransformOperation> clone() const override
47 {
48 return adoptRef(*new TranslateTransformOperation(m_x, m_y, m_z, type()));
49 }
50
51 double x(const FloatSize& borderBoxSize) const { return floatValueForLength(m_x, borderBoxSize.width()); }
52 double y(const FloatSize& borderBoxSize) const { return floatValueForLength(m_y, borderBoxSize.height()); }
53 double z(const FloatSize&) const { return floatValueForLength(m_z, 1); }
54
55 Length x() const { return m_x; }
56 Length y() const { return m_y; }
57 Length z() const { return m_z; }
58
59private:
60 bool isIdentity() const override { return !floatValueForLength(m_x, 1) && !floatValueForLength(m_y, 1) && !floatValueForLength(m_z, 1); }
61
62 bool isRepresentableIn2D() const final { return m_z.isZero(); }
63
64 bool operator==(const TransformOperation&) const override;
65
66 bool apply(TransformationMatrix& transform, const FloatSize& borderBoxSize) const override
67 {
68 transform.translate3d(x(borderBoxSize), y(borderBoxSize), z(borderBoxSize));
69 return m_x.isPercent() || m_y.isPercent();
70 }
71
72 Ref<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) override;
73
74 void dump(WTF::TextStream&) const final;
75
76 TranslateTransformOperation(const Length& tx, const Length& ty, const Length& tz, OperationType type)
77 : TransformOperation(type)
78 , m_x(tx)
79 , m_y(ty)
80 , m_z(tz)
81 {
82 ASSERT(isTranslateTransformOperationType());
83 }
84
85 Length m_x;
86 Length m_y;
87 Length m_z;
88};
89
90} // namespace WebCore
91
92SPECIALIZE_TYPE_TRAITS_TRANSFORMOPERATION(WebCore::TranslateTransformOperation, isTranslateTransformOperationType())
93