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      1 /*
      2  * Copyright (C) 2011 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Neither the name of Google Inc. nor the names of its
     11  * contributors may be used to endorse or promote products derived from
     12  * this software without specific prior written permission.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     15  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     16  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     17  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     18  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     19  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     20  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #ifndef RenderedDocumentMarker_h
     28 #define RenderedDocumentMarker_h
     29 
     30 #include "core/dom/DocumentMarker.h"
     31 
     32 namespace WebCore {
     33 
     34 class RenderedDocumentMarker : public DocumentMarker {
     35 public:
     36 
     37     explicit RenderedDocumentMarker(const DocumentMarker& marker)
     38         : DocumentMarker(marker), m_renderedRect(invalidMarkerRect())
     39     {
     40     }
     41 
     42     bool isRendered() const { return invalidMarkerRect() != m_renderedRect; }
     43     bool contains(const LayoutPoint& point) const { return isRendered() && m_renderedRect.contains(point); }
     44     void setRenderedRect(const LayoutRect& r) { m_renderedRect = r; }
     45     const LayoutRect& renderedRect() const { return m_renderedRect; }
     46     void invalidate(const LayoutRect&);
     47     void invalidate() { m_renderedRect = invalidMarkerRect(); }
     48 
     49 private:
     50     static const LayoutRect& invalidMarkerRect()
     51     {
     52         static const LayoutRect rect = LayoutRect(-1, -1, -1, -1);
     53         return rect;
     54     }
     55 
     56     LayoutRect m_renderedRect;
     57 };
     58 
     59 inline void RenderedDocumentMarker::invalidate(const LayoutRect& r)
     60 {
     61     if (m_renderedRect.intersects(r))
     62         invalidate();
     63 }
     64 
     65 inline RenderedDocumentMarker* toRenderedDocumentMarker(DocumentMarker* marker)
     66 {
     67     return static_cast<RenderedDocumentMarker*>(marker);
     68 }
     69 
     70 } // namespace
     71 
     72 #endif
     73