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      1 /*
      2  * Copyright (C) 2009 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 RenderDataGrid_h
     27 #define RenderDataGrid_h
     28 
     29 #if ENABLE(DATAGRID)
     30 
     31 #include "HTMLDataGridElement.h"
     32 #include "RenderBlock.h"
     33 #include "ScrollableArea.h"
     34 #include "StyleImage.h"
     35 #include <wtf/RefPtr.h>
     36 #include <wtf/Vector.h>
     37 
     38 namespace WebCore {
     39 
     40 class RenderDataGrid : public RenderBlock, private ScrollableArea {
     41 public:
     42     RenderDataGrid(Element*);
     43     ~RenderDataGrid();
     44 
     45     virtual const char* renderName() const { return "RenderDataGrid"; }
     46     virtual bool canHaveChildren() const { return false; }
     47     virtual void computePreferredLogicalWidths();
     48     virtual void layout();
     49     virtual void paintObject(PaintInfo&, int tx, int ty);
     50 
     51     void columnsChanged();
     52 
     53 private:
     54     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
     55 
     56     virtual bool requiresForcedStyleRecalcPropagation() const { return true; }
     57 
     58     RenderStyle* columnStyle(DataGridColumn*);
     59     RenderStyle* headerStyle(DataGridColumn*);
     60     void recalcStyleForColumns();
     61     void recalcStyleForColumn(DataGridColumn*);
     62 
     63     void layoutColumns();
     64     void paintColumnHeaders(PaintInfo&, int tx, int ty);
     65     void paintColumnHeader(DataGridColumn*, PaintInfo&, int tx, int ty);
     66 
     67     HTMLDataGridElement* gridElement() const { return static_cast<HTMLDataGridElement*>(node()); }
     68 
     69     // ScrollableArea interface.
     70     virtual int scrollSize(ScrollbarOrientation orientation) const;
     71     virtual void setScrollOffsetFromAnimation(const IntPoint&);
     72     virtual void valueChanged(Scrollbar*);
     73     virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&);
     74     virtual bool isActive() const;
     75     virtual bool scrollbarCornerPresent() const { return false; } // We don't support resize on data grids yet.  If we did this would have to change.
     76     virtual IntRect convertFromScrollbarToContainingView(const Scrollbar*, const IntRect&) const;
     77     virtual IntRect convertFromContainingViewToScrollbar(const Scrollbar*, const IntRect&) const;
     78     virtual IntPoint convertFromScrollbarToContainingView(const Scrollbar*, const IntPoint&) const;
     79     virtual IntPoint convertFromContainingViewToScrollbar(const Scrollbar*, const IntPoint&) const;
     80     virtual bool shouldSuspendScrollAnimations() const;
     81 
     82     virtual void disconnectFromPage() { m_page = 0; }
     83 
     84     RefPtr<Scrollbar> m_vBar;
     85 
     86     Page* m_page;
     87 };
     88 
     89 }
     90 
     91 #endif
     92 
     93 #endif // RenderDataGrid_h
     94