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      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 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 
     27 #ifndef RenderBoxRegionInfo_h
     28 #define RenderBoxRegionInfo_h
     29 
     30 #include "core/platform/LayoutUnit.h"
     31 #include "wtf/FastAllocBase.h"
     32 
     33 namespace WebCore {
     34 
     35 class RenderBoxRegionInfo {
     36     WTF_MAKE_FAST_ALLOCATED;
     37 public:
     38     RenderBoxRegionInfo(LayoutUnit logicalLeft, LayoutUnit logicalWidth, bool isShifted)
     39         : m_logicalLeft(logicalLeft)
     40         , m_logicalWidth(logicalWidth)
     41         , m_isShifted(isShifted)
     42     { }
     43 
     44     LayoutUnit logicalLeft() const { return m_logicalLeft; }
     45     LayoutUnit logicalWidth() const { return m_logicalWidth; }
     46 
     47     void shiftLogicalLeft(LayoutUnit delta) { m_logicalLeft += delta; m_isShifted = true; }
     48 
     49     bool isShifted() const { return m_isShifted; }
     50 
     51 private:
     52     LayoutUnit m_logicalLeft;
     53     LayoutUnit m_logicalWidth;
     54     bool m_isShifted;
     55 };
     56 
     57 } // namespace WebCore
     58 
     59 #endif // RenderBoxRegionInfo_h
     60