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      1 /*
      2  * This file is part of the render object implementation for KHTML.
      3  *
      4  * Copyright (C) 2003 Apple Computer, Inc.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  *
     21  */
     22 
     23 #ifndef RenderDeprecatedFlexibleBox_h
     24 #define RenderDeprecatedFlexibleBox_h
     25 
     26 #include "core/rendering/RenderBlock.h"
     27 
     28 namespace blink {
     29 
     30 class FlexBoxIterator;
     31 
     32 class RenderDeprecatedFlexibleBox FINAL : public RenderBlock {
     33 public:
     34     RenderDeprecatedFlexibleBox(Element&);
     35     virtual ~RenderDeprecatedFlexibleBox();
     36 
     37     virtual const char* renderName() const OVERRIDE;
     38 
     39     virtual void styleWillChange(StyleDifference, const RenderStyle& newStyle) OVERRIDE;
     40 
     41     virtual void layoutBlock(bool relayoutChildren) OVERRIDE;
     42     void layoutHorizontalBox(bool relayoutChildren);
     43     void layoutVerticalBox(bool relayoutChildren);
     44 
     45     virtual bool isDeprecatedFlexibleBox() const OVERRIDE { return true; }
     46     bool isStretchingChildren() const { return m_stretchingChildren; }
     47     virtual bool canCollapseAnonymousBlockChild() const OVERRIDE { return false; }
     48 
     49     void placeChild(RenderBox* child, const LayoutPoint& location);
     50 
     51 private:
     52     virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const OVERRIDE;
     53     virtual void computePreferredLogicalWidths() OVERRIDE;
     54 
     55     LayoutUnit allowedChildFlex(RenderBox* child, bool expanding, unsigned group);
     56 
     57     bool hasMultipleLines() const { return style()->boxLines() == MULTIPLE; }
     58     bool isVertical() const { return style()->boxOrient() == VERTICAL; }
     59     bool isHorizontal() const { return style()->boxOrient() == HORIZONTAL; }
     60 
     61     void applyLineClamp(FlexBoxIterator&, bool relayoutChildren);
     62     void clearLineClamp();
     63 
     64     bool m_stretchingChildren;
     65 };
     66 
     67 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderDeprecatedFlexibleBox, isDeprecatedFlexibleBox());
     68 
     69 } // namespace blink
     70 
     71 #endif // RenderDeprecatedFlexibleBox_h
     72