projects / iphone-api.git / blame
| Commit | Line | Data |
|---|---|---|
| a90939db JF |
1 | /* |
| 2 | * Copyright (C) 2007 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 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 LayoutState_h | |
| 27 | #define LayoutState_h | |
| 28 | ||
| 29 | #include "IntRect.h" | |
| 30 | #include "IntSize.h" | |
| 31 | #include <wtf/Noncopyable.h> | |
| 32 | ||
| 33 | namespace WebCore { | |
| 34 | ||
| 35 | class RenderArena; | |
| 36 | class RenderBox; | |
| 37 | class RenderObject; | |
| 38 | ||
| 39 | class LayoutState : Noncopyable { | |
| 40 | public: | |
| 41 | LayoutState() | |
| 42 | : m_clipped(false) | |
| 43 | , m_next(0) | |
| 44 | #ifndef NDEBUG | |
| 45 | , m_renderer(0) | |
| 46 | #endif | |
| 47 | { | |
| 48 | } | |
| 49 | ||
| 50 | LayoutState(LayoutState*, RenderBox*, const IntSize& offset); | |
| 51 | LayoutState(RenderObject*); | |
| 52 | ||
| 53 | void destroy(RenderArena*); | |
| 54 | ||
| 55 | // Overloaded new operator. | |
| 56 | void* operator new(size_t, RenderArena*) throw(); | |
| 57 | ||
| 58 | // Overridden to prevent the normal delete from being called. | |
| 59 | void operator delete(void*, size_t); | |
| 60 | ||
| 61 | private: | |
| 62 | // The normal operator new is disallowed. | |
| 63 | void* operator new(size_t) throw(); | |
| 64 | ||
| 65 | public: | |
| 66 | bool m_clipped; | |
| 67 | IntRect m_clipRect; | |
| 68 | IntSize m_offset; // x/y offset from container. | |
| 69 | IntSize m_layoutDelta; // Transient offset from the final position of the object | |
| 70 | // used to ensure that repaints happen in the correct place. | |
| 71 | // This is a total delta accumulated from the root. | |
| 72 | LayoutState* m_next; | |
| 73 | #ifndef NDEBUG | |
| 74 | RenderObject* m_renderer; | |
| 75 | #endif | |
| 76 | }; | |
| 77 | ||
| 78 | } // namespace WebCore | |
| 79 | ||
| 80 | #endif // LayoutState_h |