1 /* 2 * Copyright 2010, The Android Open Source Project 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 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 CachedLayer_h 27 #define CachedLayer_h 28 29 #include "CachedDebug.h" 30 #include "IntRect.h" 31 32 class SkPicture; 33 34 namespace WebCore { 35 class FloatPoint; 36 class LayerAndroid; 37 } 38 39 using namespace WebCore; 40 41 namespace android { 42 43 class CachedLayer { 44 public: 45 #if USE(ACCELERATED_COMPOSITING) 46 bool operator<(const CachedLayer& l) const { 47 return mCachedNodeIndex < l.mCachedNodeIndex; 48 } 49 // FIXME: adjustBounds should be renamed globalBounds or toGlobal 50 IntRect adjustBounds(const LayerAndroid* root, const IntRect& bounds) const; cachedNodeIndex()51 int cachedNodeIndex() const { return mCachedNodeIndex; } 52 FloatPoint getGlobalPosition(const LayerAndroid* ) const; 53 const LayerAndroid* layer(const LayerAndroid* root) const; 54 IntRect localBounds(const LayerAndroid* root, const IntRect& bounds) const; 55 SkPicture* picture(const LayerAndroid* root) const; 56 void toLocal(const LayerAndroid* root, int* xPtr, int* yPtr) const; setCachedNodeIndex(int index)57 void setCachedNodeIndex(int index) { mCachedNodeIndex = index; } 58 // Set the global position of the layer. This is recorded by the nav cache 59 // and corresponds to RenderLayer::absoluteBoundingBox() which is in 60 // document coordinates. This can be different from the global position of 61 // the layer if the layer is fixed positioned or scrollable. setOffset(const IntPoint & offset)62 void setOffset(const IntPoint& offset) { mOffset = offset; } setUniqueId(int uniqueId)63 void setUniqueId(int uniqueId) { mUniqueId = uniqueId; } uniqueId()64 int uniqueId() const { return mUniqueId; } 65 private: 66 int mCachedNodeIndex; 67 IntPoint mOffset; 68 int mUniqueId; 69 70 #if DUMP_NAV_CACHE 71 public: 72 class Debug { 73 public: 74 CachedLayer* base() const; 75 void print() const; 76 static void printLayerAndroid(const LayerAndroid* ); 77 static void printRootLayerAndroid(const LayerAndroid* ); 78 static int spaces; 79 } mDebug; 80 #endif 81 #endif // USE(ACCELERATED_COMPOSITING) 82 }; 83 84 } 85 86 #endif 87