--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/rendering/RenderBox.h Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,221 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 1999 Antti Koivisto (koivisto@kde.org)
+ * Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef RenderBox_h
+#define RenderBox_h
+
+#include "RenderObject.h"
+
+namespace WebCore {
+
+ enum WidthType { Width, MinWidth, MaxWidth };
+
+class RenderBox : public RenderObject {
+public:
+ RenderBox(Node*);
+ virtual ~RenderBox();
+
+ virtual const char* renderName() const { return "RenderBox"; }
+
+ virtual void setStyle(RenderStyle*);
+ virtual void paint(PaintInfo&, int tx, int ty);
+ virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
+
+ virtual void destroy();
+
+ virtual int minPrefWidth() const;
+ virtual int maxPrefWidth() const;
+
+ virtual int overrideSize() const;
+ virtual int overrideWidth() const;
+ virtual int overrideHeight() const;
+ virtual void setOverrideSize(int);
+
+ virtual bool absolutePosition(int& x, int& y, bool fixed = false) const;
+
+ virtual int xPos() const { return m_x; }
+ virtual int yPos() const { return m_y; }
+ virtual void setPos(int x, int y);
+
+ virtual int width() const { return m_width; }
+ virtual int height() const { return m_height; }
+ virtual void setWidth(int width) { m_width = width; }
+ virtual void setHeight(int height) { m_height = height; }
+
+ virtual int marginTop() const { return m_marginTop; }
+ virtual int marginBottom() const { return m_marginBottom; }
+ virtual int marginLeft() const { return m_marginLeft; }
+ virtual int marginRight() const { return m_marginRight; }
+
+ virtual IntRect borderBox() const { return IntRect(0, -borderTopExtra(), width(), height() + borderTopExtra() + borderBottomExtra()); }
+
+ int calcBorderBoxWidth(int width) const;
+ int calcBorderBoxHeight(int height) const;
+ int calcContentBoxWidth(int width) const;
+ int calcContentBoxHeight(int height) const;
+
+ virtual void borderFitAdjust(int& x, int& w) const {}; // Shrink the box in which the border paints if border-fit is set.
+
+ // This method is now public so that centered objects like tables that are
+ // shifted right by left-aligned floats can recompute their left and
+ // right margins (so that they can remain centered after being
+ // shifted. -dwh
+ void calcHorizontalMargins(const Length& marginLeft, const Length& marginRight, int containerWidth);
+
+ virtual void position(InlineBox*);
+
+ virtual void dirtyLineBoxes(bool fullLayout, bool isRootLineBox = false);
+
+ // For inline replaced elements, this function returns the inline box that owns us. Enables
+ // the replaced RenderObject to quickly determine what line it is contained on and to easily
+ // iterate over structures on the line.
+ virtual InlineBox* inlineBoxWrapper() const { return m_inlineBoxWrapper; }
+ virtual void setInlineBoxWrapper(InlineBox* boxWrapper) { m_inlineBoxWrapper = boxWrapper; }
+ virtual void deleteLineBoxWrapper();
+
+ virtual int lowestPosition(bool includeOverflowInterior = true, bool includeSelf = true) const;
+ virtual int rightmostPosition(bool includeOverflowInterior = true, bool includeSelf = true) const;
+ virtual int leftmostPosition(bool includeOverflowInterior = true, bool includeSelf = true) const;
+
+ virtual IntRect absoluteClippedOverflowRect();
+ virtual void computeAbsoluteRepaintRect(IntRect&, bool fixed = false);
+ IntSize offsetForPositionedInContainer(RenderObject*) const;
+
+ virtual void repaintDuringLayoutIfMoved(const IntRect&);
+
+ virtual int containingBlockWidth() const;
+
+ virtual void calcWidth();
+ virtual void calcHeight();
+
+ bool stretchesToViewHeight() const
+ {
+ return style()->htmlHacks() && style()->height().isAuto() && !isFloatingOrPositioned() && (isRoot() || isBody());
+ }
+
+ virtual IntSize intrinsicSize() const { return IntSize(); }
+
+ // Whether or not the element shrinks to its intrinsic width (rather than filling the width
+ // of a containing block). HTML4 buttons, <select>s, <input>s, legends, and floating/compact elements do this.
+ bool sizesToIntrinsicWidth(WidthType) const;
+ virtual bool stretchesToMinIntrinsicWidth() const { return false; }
+
+ int calcWidthUsing(WidthType, int containerWidth);
+ int calcHeightUsing(const Length& height);
+ int calcReplacedWidthUsing(Length width) const;
+ int calcReplacedHeightUsing(Length height) const;
+
+ virtual int calcReplacedWidth() const;
+ virtual int calcReplacedHeight() const;
+
+ int calcPercentageHeight(const Length& height);
+
+ virtual int availableHeight() const;
+ int availableHeightUsing(const Length&) const;
+
+ void calcVerticalMargins();
+
+ int relativePositionOffsetX() const;
+ int relativePositionOffsetY() const;
+
+ virtual RenderLayer* layer() const { return m_layer; }
+
+ virtual IntRect caretRect(int offset, EAffinity = UPSTREAM, int* extraWidthToEndOfLine = 0);
+
+ virtual void paintBackgroundExtended(GraphicsContext*, const Color&, const BackgroundLayer*, int clipY, int clipHeight,
+ int tx, int ty, int width, int height, bool includeLeftEdge = true, bool includeRightEdge = true);
+
+ virtual int staticX() const;
+ virtual int staticY() const;
+ virtual void setStaticX(int staticX);
+ virtual void setStaticY(int staticY);
+
+ virtual IntRect getOverflowClipRect(int tx, int ty);
+ virtual IntRect getClipRect(int tx, int ty);
+
+ virtual void paintBoxDecorations(PaintInfo&, int tx, int ty);
+ virtual void imageChanged(CachedImage*);
+
+protected:
+ void paintBackground(GraphicsContext*, const Color&, const BackgroundLayer*, int clipY, int clipHeight, int tx, int ty, int width, int height);
+#if PLATFORM(MAC)
+ void paintCustomHighlight(int tx, int ty, const AtomicString& type, bool behindText);
+#endif
+
+ void calcAbsoluteHorizontal();
+
+private:
+ void paintRootBoxDecorations(PaintInfo&, int tx, int ty);
+
+ void calculateBackgroundImageGeometry(const BackgroundLayer*, int tx, int ty, int w, int h, IntRect& destRect, IntPoint& phase, IntSize& tileSize);
+ void paintBackgrounds(GraphicsContext*, const Color&, const BackgroundLayer*, int clipY, int clipHeight, int tx, int ty, int width, int height);
+
+ int containingBlockWidthForPositioned(const RenderObject* containingBlock) const;
+ int containingBlockHeightForPositioned(const RenderObject* containingBlock) const;
+
+ void calcAbsoluteVertical();
+ void calcAbsoluteHorizontalValues(Length width, const RenderObject* cb, TextDirection containerDirection,
+ int containerWidth, int bordersPlusPadding,
+ Length left, Length right, Length marginLeft, Length marginRight,
+ int& widthValue, int& marginLeftValue, int& marginRightValue, int& xPos);
+ void calcAbsoluteVerticalValues(Length height, const RenderObject* cb,
+ int containerHeight, int bordersPlusPadding,
+ Length top, Length bottom, Length marginTop, Length marginBottom,
+ int& heightValue, int& marginTopValue, int& marginBottomValue, int& yPos);
+
+ void calcAbsoluteVerticalReplaced();
+ void calcAbsoluteHorizontalReplaced();
+
+ // This function calculates the minimum and maximum preferred widths for an object.
+ // These values are used in shrink-to-fit layout systems.
+ // These include tables, positioned objects, floats and flexible boxes.
+ virtual void calcPrefWidths() = 0;
+
+protected:
+ // The width/height of the contents + borders + padding.
+ int m_width;
+ int m_height;
+
+ int m_x;
+ int m_y;
+
+ int m_marginLeft;
+ int m_marginRight;
+ int m_marginTop;
+ int m_marginBottom;
+
+ // The preferred width of the element if it were to break its lines at every possible opportunity.
+ int m_minPrefWidth;
+
+ // The preferred width of the element if it never breaks any lines at all.
+ int m_maxPrefWidth;
+
+ // A pointer to our layer if we have one.
+ RenderLayer* m_layer;
+
+ // For inline replaced elements, the inline box that owns us.
+ InlineBox* m_inlineBoxWrapper;
+};
+
+} // namespace WebCore
+
+#endif // RenderBox_h