third_party/WebKit/Source/core/style/StyleTransformData.cpp

   1 /*
   2  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
   3  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public License
  16  * along with this library; see the file COPYING.LIB.  If not, write to
  17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  * Boston, MA 02110-1301, USA.
  19  *
  20  */
  21
  22 #include "config.h"
  23 #include "core/style/StyleTransformData.h"
  24
  25 #include "core/style/ComputedStyle.h"
  26 #include "core/style/DataEquivalency.h"
  27
  28 namespace blink {
  29
  30 StyleTransformData::StyleTransformData()
  31     : m_operations(ComputedStyle::initialTransform())
  32     , m_origin(ComputedStyle::initialTransformOrigin())
  33     , m_motion(nullptr, ComputedStyle::initialMotionOffset(), ComputedStyle::initialMotionRotation(), ComputedStyle::initialMotionRotationType())
  34 {
  35 }
  36
  37 StyleTransformData::StyleTransformData(const StyleTransformData& o)
  38     : RefCounted<StyleTransformData>()
  39     , m_operations(o.m_operations)
  40     , m_origin(o.m_origin)
  41     , m_motion(o.m_motion)
  42     , m_translate(o.m_translate)
  43     , m_rotate(o.m_rotate)
  44     , m_scale(o.m_scale)
  45 {
  46 }
  47
  48 bool StyleTransformData::operator==(const StyleTransformData& o) const
  49 {
  50     return m_origin == o.m_origin
  51         && m_operations == o.m_operations
  52         && m_motion == o.m_motion
  53         && dataEquivalent<TransformOperation>(m_translate, o.m_translate)
  54         && dataEquivalent<TransformOperation>(m_rotate, o.m_rotate)
  55         && dataEquivalent<TransformOperation>(m_scale, o.m_scale);
  56 }
  57
  58 bool StyleTransformData::has3DTransform() const
  59 {
  60     return m_operations.has3DOperation()
  61         || (m_translate && m_translate->z() != 0)
  62         || (m_rotate && (m_rotate->x() != 0 || m_rotate->y() != 0))
  63         || (m_scale && m_scale->z() != 1);
  64 }
  65
  66 } // namespace blink