1 /* 2 * Copyright (C) 2000 Lars Knoll (knoll (at) kde.org) 3 * (C) 2000 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2000 Dirk Mueller (mueller (at) kde.org) 5 * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 6 * Copyright (C) 2006 Graham Dennis (graham.dennis (at) 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 #ifndef TransformOperations_h 26 #define TransformOperations_h 27 28 #include "platform/geometry/LayoutSize.h" 29 #include "platform/transforms/TransformOperation.h" 30 #include "wtf/RefPtr.h" 31 #include "wtf/Vector.h" 32 33 namespace blink { 34 class FloatBox; 35 class PLATFORM_EXPORT TransformOperations { 36 WTF_MAKE_FAST_ALLOCATED; 37 public: 38 explicit TransformOperations(bool makeIdentity = false); 39 40 bool operator==(const TransformOperations& o) const; 41 bool operator!=(const TransformOperations& o) const 42 { 43 return !(*this == o); 44 } 45 46 void apply(const FloatSize& sz, TransformationMatrix& t) const 47 { 48 for (unsigned i = 0; i < m_operations.size(); ++i) 49 m_operations[i]->apply(t, sz); 50 } 51 52 // Return true if any of the operation types are 3D operation types (even if the 53 // values describe affine transforms) 54 bool has3DOperation() const 55 { 56 for (unsigned i = 0; i < m_operations.size(); ++i) 57 if (m_operations[i]->is3DOperation()) 58 return true; 59 return false; 60 } 61 62 bool dependsOnBoxSize() const 63 { 64 for (unsigned i = 0; i < m_operations.size(); ++i) { 65 if (m_operations[i]->dependsOnBoxSize()) 66 return true; 67 } 68 return false; 69 } 70 71 bool operationsMatch(const TransformOperations&) const; 72 73 void clear() 74 { 75 m_operations.clear(); 76 } 77 78 Vector<RefPtr<TransformOperation> >& operations() { return m_operations; } 79 const Vector<RefPtr<TransformOperation> >& operations() const { return m_operations; } 80 81 size_t size() const { return m_operations.size(); } 82 const TransformOperation* at(size_t index) const { return index < m_operations.size() ? m_operations.at(index).get() : 0; } 83 84 bool blendedBoundsForBox(const FloatBox&, const TransformOperations& from, const double& minProgress, const double& maxProgress, FloatBox* bounds) const; 85 TransformOperations blendByMatchingOperations(const TransformOperations& from, const double& progress) const; 86 TransformOperations blendByUsingMatrixInterpolation(const TransformOperations& from, double progress) const; 87 TransformOperations blend(const TransformOperations& from, double progress) const; 88 TransformOperations add(const TransformOperations& addend) const; 89 90 private: 91 Vector<RefPtr<TransformOperation> > m_operations; 92 }; 93 94 } // namespace blink 95 96 #endif // TransformOperations_h 97
