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| 1 /* | |
| 2 * Copyright (C) 2003, 2009, 2012 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 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 ClipRects_h | |
| 27 #define ClipRects_h | |
| 28 | |
| 29 #include "core/layout/ClipRect.h" | |
| 30 #include "platform/wtf/RefCounted.h" | |
| 31 | |
| 32 namespace blink { | |
| 33 | |
| 34 class ClipRects : public RefCounted<ClipRects> { | |
| 35 USING_FAST_MALLOC(ClipRects); | |
| 36 | |
| 37 public: | |
| 38 static PassRefPtr<ClipRects> create() { return adoptRef(new ClipRects); } | |
| 39 static PassRefPtr<ClipRects> create(const ClipRects& other) { | |
| 40 return adoptRef(new ClipRects(other)); | |
| 41 } | |
| 42 | |
| 43 ClipRects() : m_fixed(0) {} | |
| 44 | |
| 45 void reset(const LayoutRect& r) { | |
| 46 m_overflowClipRect = r; | |
| 47 m_fixedClipRect = r; | |
| 48 m_posClipRect = r; | |
| 49 m_fixed = 0; | |
| 50 } | |
| 51 | |
| 52 const ClipRect& overflowClipRect() const { return m_overflowClipRect; } | |
| 53 void setOverflowClipRect(const ClipRect& r) { m_overflowClipRect = r; } | |
| 54 | |
| 55 const ClipRect& fixedClipRect() const { return m_fixedClipRect; } | |
| 56 void setFixedClipRect(const ClipRect& r) { m_fixedClipRect = r; } | |
| 57 | |
| 58 const ClipRect& posClipRect() const { return m_posClipRect; } | |
| 59 void setPosClipRect(const ClipRect& r) { m_posClipRect = r; } | |
| 60 | |
| 61 bool fixed() const { return static_cast<bool>(m_fixed); } | |
| 62 void setFixed(bool fixed) { m_fixed = fixed ? 1 : 0; } | |
| 63 | |
| 64 bool operator==(const ClipRects& other) const { | |
| 65 return m_overflowClipRect == other.overflowClipRect() && | |
| 66 m_fixedClipRect == other.fixedClipRect() && | |
| 67 m_posClipRect == other.posClipRect() && fixed() == other.fixed(); | |
| 68 } | |
| 69 | |
| 70 bool operator!=(const ClipRects& other) const { return !(*this == other); } | |
| 71 | |
| 72 ClipRects& operator=(const ClipRects& other) { | |
| 73 m_overflowClipRect = other.overflowClipRect(); | |
| 74 m_fixedClipRect = other.fixedClipRect(); | |
| 75 m_posClipRect = other.posClipRect(); | |
| 76 m_fixed = other.fixed(); | |
| 77 return *this; | |
| 78 } | |
| 79 | |
| 80 private: | |
| 81 ClipRects(const LayoutRect& r) | |
| 82 : m_overflowClipRect(r), | |
| 83 m_fixedClipRect(r), | |
| 84 m_posClipRect(r), | |
| 85 m_fixed(0) {} | |
| 86 | |
| 87 ClipRects(const ClipRects& other) | |
| 88 : m_overflowClipRect(other.overflowClipRect()), | |
| 89 m_fixedClipRect(other.fixedClipRect()), | |
| 90 m_posClipRect(other.posClipRect()), | |
| 91 m_fixed(other.fixed()) {} | |
| 92 | |
| 93 ClipRect m_overflowClipRect; | |
| 94 ClipRect m_fixedClipRect; | |
| 95 ClipRect m_posClipRect; | |
| 96 unsigned m_fixed; | |
| 97 }; | |
| 98 | |
| 99 } // namespace blink | |
| 100 | |
| 101 #endif // ClipRects_h | |
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Chromium Code Reviews
Issue 2854493002:
Store previous painting clip rects on FragmentData. (Closed)
