1 /* 2 * Copyright (C) 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef FilterOperations_h 27 #define FilterOperations_h 28 29 #include "platform/PlatformExport.h" 30 #include "platform/geometry/IntRectExtent.h" 31 #include "platform/graphics/filters/FilterOperation.h" 32 #include "wtf/RefPtr.h" 33 #include "wtf/Vector.h" 34 35 namespace WebCore { 36 37 typedef IntRectExtent FilterOutsets; 38 39 class PLATFORM_EXPORT FilterOperations { 40 WTF_MAKE_FAST_ALLOCATED; 41 public: 42 FilterOperations(); 43 FilterOperations(const FilterOperations& other) { *this = other; } 44 45 FilterOperations& operator=(const FilterOperations&); 46 47 bool operator==(const FilterOperations&) const; 48 bool operator!=(const FilterOperations& o) const 49 { 50 return !(*this == o); 51 } 52 53 void clear() 54 { 55 m_operations.clear(); 56 } 57 58 Vector<RefPtr<FilterOperation> >& operations() { return m_operations; } 59 const Vector<RefPtr<FilterOperation> >& operations() const { return m_operations; } 60 61 bool isEmpty() const { return !m_operations.size(); } 62 size_t size() const { return m_operations.size(); } 63 const FilterOperation* at(size_t index) const { return index < m_operations.size() ? m_operations.at(index).get() : 0; } 64 65 bool canInterpolateWith(const FilterOperations&) const; 66 67 bool hasOutsets() const; 68 FilterOutsets outsets() const; 69 70 bool hasFilterThatAffectsOpacity() const; 71 bool hasFilterThatMovesPixels() const; 72 73 bool hasCustomFilter() const; 74 bool hasReferenceFilter() const; 75 private: 76 Vector<RefPtr<FilterOperation> > m_operations; 77 }; 78 79 } // namespace WebCore 80 81 82 #endif // FilterOperations_h 83
