author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 27 Aug 2009 07:44:59 +0300 | |
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/* |
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
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* (C) 1999 Antti Koivisto (koivisto@kde.org) |
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* Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public License |
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* along with this library; see the file COPYING.LIB. If not, write to |
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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* |
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*/ |
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#ifndef RenderBox_h |
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#define RenderBox_h |
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#include "RenderObject.h" |
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namespace WebCore { |
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void cleanOverridSizeMap(); |
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enum WidthType { Width, MinWidth, MaxWidth }; |
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class RenderBox : public RenderObject { |
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public: |
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RenderBox(Node*); |
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virtual ~RenderBox(); |
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virtual const char* renderName() const { return "RenderBox"; } |
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virtual void setStyle(RenderStyle*); |
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virtual void paint(PaintInfo&, int tx, int ty); |
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virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction); |
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virtual void destroy(); |
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virtual int minPrefWidth() const; |
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virtual int maxPrefWidth() const; |
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virtual int overrideSize() const; |
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virtual int overrideWidth() const; |
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virtual int overrideHeight() const; |
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virtual void setOverrideSize(int); |
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virtual bool absolutePosition(int& x, int& y, bool fixed = false) const; |
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virtual int xPos() const { return m_x; } |
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virtual int yPos() const { return m_y; } |
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virtual void setPos(int x, int y); |
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virtual int width() const { return m_width; } |
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virtual int height() const { return m_height; } |
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virtual void setWidth(int width) { m_width = width; } |
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virtual void setHeight(int height) { m_height = height; } |
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virtual int marginTop() const { return m_marginTop; } |
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virtual int marginBottom() const { return m_marginBottom; } |
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virtual int marginLeft() const { return m_marginLeft; } |
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virtual int marginRight() const { return m_marginRight; } |
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virtual IntRect borderBox() const { return IntRect(0, -borderTopExtra(), width(), height() + borderTopExtra() + borderBottomExtra()); } |
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int calcBorderBoxWidth(int width) const; |
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int calcBorderBoxHeight(int height) const; |
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int calcContentBoxWidth(int width) const; |
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int calcContentBoxHeight(int height) const; |
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virtual void borderFitAdjust(int& x, int& w) const {}; // Shrink the box in which the border paints if border-fit is set. |
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// This method is now public so that centered objects like tables that are |
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// shifted right by left-aligned floats can recompute their left and |
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// right margins (so that they can remain centered after being |
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// shifted. -dwh |
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void calcHorizontalMargins(const Length& marginLeft, const Length& marginRight, int containerWidth); |
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virtual void position(InlineBox*); |
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virtual void dirtyLineBoxes(bool fullLayout, bool isRootLineBox = false); |
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// For inline replaced elements, this function returns the inline box that owns us. Enables |
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// the replaced RenderObject to quickly determine what line it is contained on and to easily |
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// iterate over structures on the line. |
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virtual InlineBox* inlineBoxWrapper() const { return m_inlineBoxWrapper; } |
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virtual void setInlineBoxWrapper(InlineBox* boxWrapper) { m_inlineBoxWrapper = boxWrapper; } |
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virtual void deleteLineBoxWrapper(); |
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virtual int lowestPosition(bool includeOverflowInterior = true, bool includeSelf = true) const; |
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virtual int rightmostPosition(bool includeOverflowInterior = true, bool includeSelf = true) const; |
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virtual int leftmostPosition(bool includeOverflowInterior = true, bool includeSelf = true) const; |
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virtual IntRect absoluteClippedOverflowRect(); |
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virtual void computeAbsoluteRepaintRect(IntRect&, bool fixed = false); |
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IntSize offsetForPositionedInContainer(RenderObject*) const; |
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virtual void repaintDuringLayoutIfMoved(const IntRect&); |
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virtual int containingBlockWidth() const; |
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virtual void calcWidth(); |
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virtual void calcHeight(); |
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bool stretchesToViewHeight() const |
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{ |
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return style()->htmlHacks() && style()->height().isAuto() && !isFloatingOrPositioned() && (isRoot() || isBody()); |
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} |
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virtual IntSize intrinsicSize() const { return IntSize(); } |
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// Whether or not the element shrinks to its intrinsic width (rather than filling the width |
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// of a containing block). HTML4 buttons, <select>s, <input>s, legends, and floating/compact elements do this. |
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bool sizesToIntrinsicWidth(WidthType) const; |
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virtual bool stretchesToMinIntrinsicWidth() const { return false; } |
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int calcWidthUsing(WidthType, int containerWidth); |
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int calcHeightUsing(const Length& height); |
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int calcReplacedWidthUsing(Length width) const; |
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int calcReplacedHeightUsing(Length height) const; |
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virtual int calcReplacedWidth() const; |
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virtual int calcReplacedHeight() const; |
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int calcPercentageHeight(const Length& height); |
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virtual int availableHeight() const; |
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int availableHeightUsing(const Length&) const; |
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void calcVerticalMargins(); |
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int relativePositionOffsetX() const; |
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int relativePositionOffsetY() const; |
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virtual RenderLayer* layer() const { return m_layer; } |
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virtual IntRect caretRect(int offset, EAffinity = UPSTREAM, int* extraWidthToEndOfLine = 0); |
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virtual void paintBackgroundExtended(GraphicsContext*, const Color&, const BackgroundLayer*, int clipY, int clipHeight, |
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int tx, int ty, int width, int height, bool includeLeftEdge = true, bool includeRightEdge = true); |
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virtual int staticX() const; |
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virtual int staticY() const; |
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virtual void setStaticX(int staticX); |
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virtual void setStaticY(int staticY); |
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virtual IntRect getOverflowClipRect(int tx, int ty); |
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virtual IntRect getClipRect(int tx, int ty); |
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virtual void paintBoxDecorations(PaintInfo&, int tx, int ty); |
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virtual void imageChanged(CachedImage*); |
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protected: |
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void paintBackground(GraphicsContext*, const Color&, const BackgroundLayer*, int clipY, int clipHeight, int tx, int ty, int width, int height); |
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#if PLATFORM(MAC) |
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void paintCustomHighlight(int tx, int ty, const AtomicString& type, bool behindText); |
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#endif |
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void calcAbsoluteHorizontal(); |
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private: |
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void paintRootBoxDecorations(PaintInfo&, int tx, int ty); |
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void calculateBackgroundImageGeometry(const BackgroundLayer*, int tx, int ty, int w, int h, IntRect& destRect, IntPoint& phase, IntSize& tileSize); |
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void paintBackgrounds(GraphicsContext*, const Color&, const BackgroundLayer*, int clipY, int clipHeight, int tx, int ty, int width, int height); |
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int containingBlockWidthForPositioned(const RenderObject* containingBlock) const; |
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int containingBlockHeightForPositioned(const RenderObject* containingBlock) const; |
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void calcAbsoluteVertical(); |
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void calcAbsoluteHorizontalValues(Length width, const RenderObject* cb, TextDirection containerDirection, |
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int containerWidth, int bordersPlusPadding, |
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Length left, Length right, Length marginLeft, Length marginRight, |
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int& widthValue, int& marginLeftValue, int& marginRightValue, int& xPos); |
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void calcAbsoluteVerticalValues(Length height, const RenderObject* cb, |
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int containerHeight, int bordersPlusPadding, |
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Length top, Length bottom, Length marginTop, Length marginBottom, |
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int& heightValue, int& marginTopValue, int& marginBottomValue, int& yPos); |
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void calcAbsoluteVerticalReplaced(); |
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void calcAbsoluteHorizontalReplaced(); |
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// This function calculates the minimum and maximum preferred widths for an object. |
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// These values are used in shrink-to-fit layout systems. |
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// These include tables, positioned objects, floats and flexible boxes. |
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virtual void calcPrefWidths() = 0; |
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protected: |
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// The width/height of the contents + borders + padding. |
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int m_width; |
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int m_height; |
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int m_x; |
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int m_y; |
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int m_marginLeft; |
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int m_marginRight; |
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int m_marginTop; |
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int m_marginBottom; |
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// The preferred width of the element if it were to break its lines at every possible opportunity. |
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int m_minPrefWidth; |
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// The preferred width of the element if it never breaks any lines at all. |
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int m_maxPrefWidth; |
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// A pointer to our layer if we have one. |
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RenderLayer* m_layer; |
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// For inline replaced elements, the inline box that owns us. |
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InlineBox* m_inlineBoxWrapper; |
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}; |
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} // namespace WebCore |
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#endif // RenderBox_h |