| /* |
| * 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 "RenderBoxModelObject.h" |
| #include "RenderOverflow.h" |
| #include "ScrollTypes.h" |
| |
| namespace WebCore { |
| |
| struct PaintInfo; |
| |
| enum LogicalWidthType { LogicalWidth, MinLogicalWidth, MaxLogicalWidth }; |
| |
| enum OverlayScrollbarSizeRelevancy { IgnoreOverlayScrollbarSize, IncludeOverlayScrollbarSize }; |
| |
| class RenderBox : public RenderBoxModelObject { |
| public: |
| RenderBox(Node*); |
| virtual ~RenderBox(); |
| |
| // Use this with caution! No type checking is done! |
| RenderBox* firstChildBox() const; |
| RenderBox* lastChildBox() const; |
| |
| int x() const { return m_frameRect.x(); } |
| int y() const { return m_frameRect.y(); } |
| int width() const { return m_frameRect.width(); } |
| int height() const { return m_frameRect.height(); } |
| |
| void setX(int x) { m_frameRect.setX(x); } |
| void setY(int y) { m_frameRect.setY(y); } |
| void setWidth(int width) { m_frameRect.setWidth(width); } |
| void setHeight(int height) { m_frameRect.setHeight(height); } |
| |
| int logicalLeft() const { return style()->isHorizontalWritingMode() ? x() : y(); } |
| int logicalRight() const { return logicalLeft() + logicalWidth(); } |
| int logicalTop() const { return style()->isHorizontalWritingMode() ? y() : x(); } |
| int logicalBottom() const { return logicalTop() + logicalHeight(); } |
| int logicalWidth() const { return style()->isHorizontalWritingMode() ? width() : height(); } |
| int logicalHeight() const { return style()->isHorizontalWritingMode() ? height() : width(); } |
| |
| void setLogicalLeft(int left) |
| { |
| if (style()->isHorizontalWritingMode()) |
| setX(left); |
| else |
| setY(left); |
| } |
| void setLogicalTop(int top) |
| { |
| if (style()->isHorizontalWritingMode()) |
| setY(top); |
| else |
| setX(top); |
| } |
| void setLogicalWidth(int size) |
| { |
| if (style()->isHorizontalWritingMode()) |
| setWidth(size); |
| else |
| setHeight(size); |
| } |
| void setLogicalHeight(int size) |
| { |
| if (style()->isHorizontalWritingMode()) |
| setHeight(size); |
| else |
| setWidth(size); |
| } |
| void setLogicalLocation(int left, int top) |
| { |
| if (style()->isHorizontalWritingMode()) |
| setLocation(left, top); |
| else |
| setLocation(top, left); |
| } |
| |
| IntPoint location() const { return m_frameRect.location(); } |
| IntSize locationOffset() const { return IntSize(x(), y()); } |
| IntSize size() const { return m_frameRect.size(); } |
| |
| void setLocation(const IntPoint& location) { m_frameRect.setLocation(location); } |
| void setLocation(int x, int y) { setLocation(IntPoint(x, y)); } |
| |
| void setSize(const IntSize& size) { m_frameRect.setSize(size); } |
| void move(int dx, int dy) { m_frameRect.move(dx, dy); } |
| |
| IntRect frameRect() const { return m_frameRect; } |
| void setFrameRect(const IntRect& rect) { m_frameRect = rect; } |
| |
| IntRect borderBoxRect() const { return IntRect(0, 0, width(), height()); } |
| virtual IntRect borderBoundingBox() const { return borderBoxRect(); } |
| |
| // The content area of the box (excludes padding and border). |
| IntRect contentBoxRect() const { return IntRect(borderLeft() + paddingLeft(), borderTop() + paddingTop(), contentWidth(), contentHeight()); } |
| // The content box in absolute coords. Ignores transforms. |
| IntRect absoluteContentBox() const; |
| // The content box converted to absolute coords (taking transforms into account). |
| FloatQuad absoluteContentQuad() const; |
| |
| // Bounds of the outline box in absolute coords. Respects transforms |
| virtual IntRect outlineBoundsForRepaint(RenderBoxModelObject* /*repaintContainer*/, IntPoint* cachedOffsetToRepaintContainer) const; |
| virtual void addFocusRingRects(Vector<IntRect>&, int tx, int ty); |
| |
| // Use this with caution! No type checking is done! |
| RenderBox* previousSiblingBox() const; |
| RenderBox* nextSiblingBox() const; |
| RenderBox* parentBox() const; |
| |
| // Visual and layout overflow are in the coordinate space of the box. This means that they aren't purely physical directions. |
| // For horizontal-tb and vertical-lr they will match physical directions, but for horizontal-bt and vertical-rl, the top/bottom and left/right |
| // respectively are flipped when compared to their physical counterparts. For example minX is on the left in vertical-lr, |
| // but it is on the right in vertical-rl. |
| IntRect layoutOverflowRect() const { return m_overflow ? m_overflow->layoutOverflowRect() : clientBoxRect(); } |
| int minYLayoutOverflow() const { return m_overflow? m_overflow->minYLayoutOverflow() : borderTop(); } |
| int maxYLayoutOverflow() const { return m_overflow ? m_overflow->maxYLayoutOverflow() : borderTop() + clientHeight(); } |
| int minXLayoutOverflow() const { return m_overflow ? m_overflow->minXLayoutOverflow() : borderLeft(); } |
| int maxXLayoutOverflow() const { return m_overflow ? m_overflow->maxXLayoutOverflow() : borderLeft() + clientWidth(); } |
| int logicalLeftLayoutOverflow() const { return style()->isHorizontalWritingMode() ? minXLayoutOverflow() : minYLayoutOverflow(); } |
| int logicalRightLayoutOverflow() const { return style()->isHorizontalWritingMode() ? maxXLayoutOverflow() : maxYLayoutOverflow(); } |
| |
| IntRect visualOverflowRect() const { return m_overflow ? m_overflow->visualOverflowRect() : borderBoxRect(); } |
| int minYVisualOverflow() const { return m_overflow? m_overflow->minYVisualOverflow() : 0; } |
| int maxYVisualOverflow() const { return m_overflow ? m_overflow->maxYVisualOverflow() : height(); } |
| int minXVisualOverflow() const { return m_overflow ? m_overflow->minXVisualOverflow() : 0; } |
| int maxXVisualOverflow() const { return m_overflow ? m_overflow->maxXVisualOverflow() : width(); } |
| int logicalLeftVisualOverflow() const { return style()->isHorizontalWritingMode() ? minXVisualOverflow() : minYVisualOverflow(); } |
| int logicalRightVisualOverflow() const { return style()->isHorizontalWritingMode() ? maxXVisualOverflow() : maxYVisualOverflow(); } |
| |
| void addLayoutOverflow(const IntRect&); |
| void addVisualOverflow(const IntRect&); |
| |
| void addShadowOverflow(); |
| void addOverflowFromChild(RenderBox* child) { addOverflowFromChild(child, IntSize(child->x(), child->y())); } |
| void addOverflowFromChild(RenderBox* child, const IntSize& delta); |
| void clearLayoutOverflow(); |
| |
| void updateLayerTransform(); |
| |
| void blockDirectionOverflow(bool isLineHorizontal, int& logicalTopLayoutOverflow, int& logicalBottomLayoutOverflow, |
| int& logicalTopVisualOverflow, int& logicalBottomVisualOverflow); |
| |
| int contentWidth() const { return clientWidth() - paddingLeft() - paddingRight(); } |
| int contentHeight() const { return clientHeight() - paddingTop() - paddingBottom(); } |
| int contentLogicalWidth() const { return style()->isHorizontalWritingMode() ? contentWidth() : contentHeight(); } |
| int contentLogicalHeight() const { return style()->isHorizontalWritingMode() ? contentHeight() : contentWidth(); } |
| |
| // IE extensions. Used to calculate offsetWidth/Height. Overridden by inlines (RenderFlow) |
| // to return the remaining width on a given line (and the height of a single line). |
| virtual int offsetWidth() const { return width(); } |
| virtual int offsetHeight() const { return height(); } |
| |
| // More IE extensions. clientWidth and clientHeight represent the interior of an object |
| // excluding border and scrollbar. clientLeft/Top are just the borderLeftWidth and borderTopWidth. |
| int clientLeft() const { return borderLeft(); } |
| int clientTop() const { return borderTop(); } |
| int clientWidth() const; |
| int clientHeight() const; |
| int clientLogicalWidth() const { return style()->isHorizontalWritingMode() ? clientWidth() : clientHeight(); } |
| int clientLogicalHeight() const { return style()->isHorizontalWritingMode() ? clientHeight() : clientWidth(); } |
| int clientLogicalBottom() const { return borderBefore() + clientLogicalHeight(); } |
| IntRect clientBoxRect() const { return IntRect(clientLeft(), clientTop(), clientWidth(), clientHeight()); } |
| |
| // scrollWidth/scrollHeight will be the same as clientWidth/clientHeight unless the |
| // object has overflow:hidden/scroll/auto specified and also has overflow. |
| // scrollLeft/Top return the current scroll position. These methods are virtual so that objects like |
| // textareas can scroll shadow content (but pretend that they are the objects that are |
| // scrolling). |
| virtual int scrollLeft() const; |
| virtual int scrollTop() const; |
| virtual int scrollWidth() const; |
| virtual int scrollHeight() const; |
| virtual void setScrollLeft(int); |
| virtual void setScrollTop(int); |
| |
| 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; } |
| void setMarginTop(int margin) { m_marginTop = margin; } |
| void setMarginBottom(int margin) { m_marginBottom = margin; } |
| void setMarginLeft(int margin) { m_marginLeft = margin; } |
| void setMarginRight(int margin) { m_marginRight = margin; } |
| virtual int marginBefore() const; |
| virtual int marginAfter() const; |
| virtual int marginStart() const; |
| virtual int marginEnd() const; |
| void setMarginStart(int); |
| void setMarginEnd(int); |
| void setMarginBefore(int); |
| void setMarginAfter(int); |
| |
| // The following five functions are used to implement collapsing margins. |
| // All objects know their maximal positive and negative margins. The |
| // formula for computing a collapsed margin is |maxPosMargin| - |maxNegmargin|. |
| // For a non-collapsing box, such as a leaf element, this formula will simply return |
| // the margin of the element. Blocks override the maxMarginBefore and maxMarginAfter |
| // methods. |
| enum MarginSign { PositiveMargin, NegativeMargin }; |
| virtual bool isSelfCollapsingBlock() const { return false; } |
| virtual int collapsedMarginBefore() const { return marginBefore(); } |
| virtual int collapsedMarginAfter() const { return marginAfter(); } |
| |
| virtual void absoluteRects(Vector<IntRect>&, int tx, int ty); |
| virtual void absoluteQuads(Vector<FloatQuad>&); |
| |
| IntRect reflectionBox() const; |
| int reflectionOffset() const; |
| // Given a rect in the object's coordinate space, returns the corresponding rect in the reflection. |
| IntRect reflectedRect(const IntRect&) const; |
| |
| virtual void layout(); |
| 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 minPreferredLogicalWidth() const; |
| virtual int maxPreferredLogicalWidth() const; |
| |
| int overrideSize() const; |
| int overrideWidth() const; |
| int overrideHeight() const; |
| virtual void setOverrideSize(int); |
| |
| virtual IntSize offsetFromContainer(RenderObject*, const IntPoint&) const; |
| |
| int computeBorderBoxLogicalWidth(int width) const; |
| int computeBorderBoxLogicalHeight(int height) const; |
| int computeContentBoxLogicalWidth(int width) const; |
| int computeContentBoxLogicalHeight(int height) const; |
| |
| virtual void borderFitAdjust(int& /*x*/, int& /*w*/) const { } // Shrink the box in which the border paints if border-fit is set. |
| |
| // Resolve auto margins in the inline direction of the containing block so that objects can be pushed to the start, middle or end |
| // of the containing block. |
| void computeInlineDirectionMargins(RenderBlock* containingBlock, int containerWidth, int childWidth); |
| |
| // Used to resolve margins in the containing block's block-flow direction. |
| void computeBlockDirectionMargins(RenderBlock* containingBlock); |
| |
| void positionLineBox(InlineBox*); |
| |
| virtual InlineBox* createInlineBox(); |
| void dirtyLineBoxes(bool fullLayout); |
| |
| // 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. |
| InlineBox* inlineBoxWrapper() const { return m_inlineBoxWrapper; } |
| void setInlineBoxWrapper(InlineBox* boxWrapper) { m_inlineBoxWrapper = boxWrapper; } |
| void deleteLineBoxWrapper(); |
| |
| virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer); |
| virtual void computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect&, bool fixed = false); |
| |
| virtual void repaintDuringLayoutIfMoved(const IntRect&); |
| |
| virtual int containingBlockLogicalWidthForContent() const; |
| int perpendicularContainingBlockLogicalHeight() const; |
| |
| virtual void computeLogicalWidth(); |
| virtual void computeLogicalHeight(); |
| |
| bool stretchesToViewport() const |
| { |
| return document()->inQuirksMode() && style()->logicalHeight().isAuto() && !isFloatingOrPositioned() && (isRoot() || isBody()); |
| } |
| |
| virtual IntSize intrinsicSize() const { return IntSize(); } |
| int intrinsicLogicalWidth() const { return style()->isHorizontalWritingMode() ? intrinsicSize().width() : intrinsicSize().height(); } |
| int intrinsicLogicalHeight() const { return style()->isHorizontalWritingMode() ? intrinsicSize().height() : intrinsicSize().width(); } |
| |
| // 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 sizesToIntrinsicLogicalWidth(LogicalWidthType) const; |
| virtual bool stretchesToMinIntrinsicLogicalWidth() const { return false; } |
| |
| int computeLogicalWidthUsing(LogicalWidthType, int availableLogicalWidth); |
| int computeLogicalHeightUsing(const Length& height); |
| int computeReplacedLogicalWidthUsing(Length width) const; |
| int computeReplacedLogicalHeightUsing(Length height) const; |
| |
| virtual int computeReplacedLogicalWidth(bool includeMaxWidth = true) const; |
| virtual int computeReplacedLogicalHeight() const; |
| |
| int computePercentageLogicalHeight(const Length& height); |
| |
| // Block flows subclass availableWidth to handle multi column layout (shrinking the width available to children when laying out.) |
| virtual int availableLogicalWidth() const { return contentLogicalWidth(); } |
| int availableLogicalHeight() const; |
| int availableLogicalHeightUsing(const Length&) const; |
| |
| // There are a few cases where we need to refer specifically to the available physical width and available physical height. |
| // Relative positioning is one of those cases, since left/top offsets are physical. |
| int availableWidth() const { return style()->isHorizontalWritingMode() ? availableLogicalWidth() : availableLogicalHeight(); } |
| int availableHeight() const { return style()->isHorizontalWritingMode() ? availableLogicalHeight() : availableLogicalWidth(); } |
| |
| virtual int verticalScrollbarWidth() const; |
| int horizontalScrollbarHeight() const; |
| int scrollbarLogicalHeight() const { return style()->isHorizontalWritingMode() ? horizontalScrollbarHeight() : verticalScrollbarWidth(); } |
| virtual bool scroll(ScrollDirection, ScrollGranularity, float multiplier = 1, Node** stopNode = 0); |
| virtual bool logicalScroll(ScrollLogicalDirection, ScrollGranularity, float multiplier = 1, Node** stopNode = 0); |
| bool canBeScrolledAndHasScrollableArea() const; |
| virtual bool canBeProgramaticallyScrolled(bool) const; |
| virtual void autoscroll(); |
| virtual void stopAutoscroll() { } |
| virtual void panScroll(const IntPoint&); |
| bool hasAutoVerticalScrollbar() const { return hasOverflowClip() && (style()->overflowY() == OAUTO || style()->overflowY() == OOVERLAY); } |
| bool hasAutoHorizontalScrollbar() const { return hasOverflowClip() && (style()->overflowX() == OAUTO || style()->overflowX() == OOVERLAY); } |
| bool scrollsOverflow() const { return scrollsOverflowX() || scrollsOverflowY(); } |
| bool scrollsOverflowX() const { return hasOverflowClip() && (style()->overflowX() == OSCROLL || hasAutoHorizontalScrollbar()); } |
| bool scrollsOverflowY() const { return hasOverflowClip() && (style()->overflowY() == OSCROLL || hasAutoVerticalScrollbar()); } |
| |
| virtual IntRect localCaretRect(InlineBox*, int caretOffset, int* extraWidthToEndOfLine = 0); |
| |
| virtual IntRect overflowClipRect(int tx, int ty, OverlayScrollbarSizeRelevancy relevancy = IgnoreOverlayScrollbarSize); |
| IntRect clipRect(int tx, int ty); |
| virtual bool hasControlClip() const { return false; } |
| virtual IntRect controlClipRect(int /*tx*/, int /*ty*/) const { return IntRect(); } |
| bool pushContentsClip(PaintInfo&, int tx, int ty); |
| void popContentsClip(PaintInfo&, PaintPhase originalPhase, int tx, int ty); |
| |
| virtual void paintObject(PaintInfo&, int /*tx*/, int /*ty*/) { ASSERT_NOT_REACHED(); } |
| virtual void paintBoxDecorations(PaintInfo&, int tx, int ty); |
| virtual void paintMask(PaintInfo&, int tx, int ty); |
| virtual void imageChanged(WrappedImagePtr, const IntRect* = 0); |
| |
| // Called when a positioned object moves but doesn't necessarily change size. A simplified layout is attempted |
| // that just updates the object's position. If the size does change, the object remains dirty. |
| bool tryLayoutDoingPositionedMovementOnly() |
| { |
| int oldWidth = width(); |
| computeLogicalWidth(); |
| // If we shrink to fit our width may have changed, so we still need full layout. |
| if (oldWidth != width()) |
| return false; |
| computeLogicalHeight(); |
| return true; |
| } |
| |
| IntRect maskClipRect(); |
| |
| virtual VisiblePosition positionForPoint(const IntPoint&); |
| |
| void removeFloatingOrPositionedChildFromBlockLists(); |
| |
| RenderLayer* enclosingFloatPaintingLayer() const; |
| |
| virtual int firstLineBoxBaseline() const { return -1; } |
| virtual int lastLineBoxBaseline() const { return -1; } |
| |
| bool shrinkToAvoidFloats() const; |
| virtual bool avoidsFloats() const; |
| |
| virtual void markForPaginationRelayoutIfNeeded() { } |
| |
| bool isWritingModeRoot() const { return !parent() || parent()->style()->writingMode() != style()->writingMode(); } |
| |
| bool isDeprecatedFlexItem() const { return !isInline() && !isFloatingOrPositioned() && parent() && parent()->isFlexibleBox(); } |
| |
| virtual int lineHeight(bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const; |
| virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const; |
| |
| enum FlippingAdjustment { ChildToParentFlippingAdjustment, ParentToChildFlippingAdjustment }; |
| IntPoint flipForWritingMode(const RenderBox* child, const IntPoint&, FlippingAdjustment) const; |
| int flipForWritingMode(int position) const; // The offset is in the block direction (y for horizontal writing modes, x for vertical writing modes). |
| IntPoint flipForWritingMode(const IntPoint&) const; |
| IntPoint flipForWritingModeIncludingColumns(const IntPoint&) const; |
| IntSize flipForWritingMode(const IntSize&) const; |
| void flipForWritingMode(IntRect&) const; |
| FloatPoint flipForWritingMode(const FloatPoint&) const; |
| void flipForWritingMode(FloatRect&) const; |
| IntSize locationOffsetIncludingFlipping() const; |
| |
| IntRect logicalVisualOverflowRectForPropagation(RenderStyle*) const; |
| IntRect visualOverflowRectForPropagation(RenderStyle*) const; |
| IntRect logicalLayoutOverflowRectForPropagation(RenderStyle*) const; |
| IntRect layoutOverflowRectForPropagation(RenderStyle*) const; |
| |
| RenderOverflow* hasRenderOverflow() const { return m_overflow.get(); } |
| |
| #ifdef ANDROID_LAYOUT |
| int getVisibleWidth() const { return m_visibleWidth; } |
| #endif |
| |
| protected: |
| virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle); |
| virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle); |
| virtual void updateBoxModelInfoFromStyle(); |
| |
| void paintFillLayer(const PaintInfo&, const Color&, const FillLayer*, int tx, int ty, int width, int height, CompositeOperator op, RenderObject* backgroundObject); |
| void paintFillLayers(const PaintInfo&, const Color&, const FillLayer*, int tx, int ty, int width, int height, CompositeOperator = CompositeSourceOver, RenderObject* backgroundObject = 0); |
| |
| void paintBoxDecorationsWithSize(PaintInfo&, int tx, int ty, int width, int height); |
| void paintMaskImages(const PaintInfo&, int tx, int ty, int width, int height); |
| |
| #if PLATFORM(MAC) |
| void paintCustomHighlight(int tx, int ty, const AtomicString& type, bool behindText); |
| #endif |
| |
| void computePositionedLogicalWidth(); |
| |
| virtual bool shouldComputeSizeAsReplaced() const { return isReplaced() && !isInlineBlockOrInlineTable(); } |
| |
| virtual void mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool fixed, bool useTransforms, TransformState&) const; |
| virtual void mapAbsoluteToLocalPoint(bool fixed, bool useTransforms, TransformState&) const; |
| |
| void paintRootBoxFillLayers(const PaintInfo&); |
| |
| private: |
| bool includeVerticalScrollbarSize() const; |
| bool includeHorizontalScrollbarSize() const; |
| |
| // Returns true if we did a full repaint |
| bool repaintLayerRectsForImage(WrappedImagePtr image, const FillLayer* layers, bool drawingBackground); |
| |
| int containingBlockLogicalWidthForPositioned(const RenderBoxModelObject* containingBlock, bool checkForPerpendicularWritingMode = true) const; |
| int containingBlockLogicalHeightForPositioned(const RenderBoxModelObject* containingBlock, bool checkForPerpendicularWritingMode = true) const; |
| |
| void computePositionedLogicalHeight(); |
| void computePositionedLogicalWidthUsing(Length logicalWidth, const RenderBoxModelObject* containerBlock, TextDirection containerDirection, |
| int containerLogicalWidth, int bordersPlusPadding, |
| Length logicalLeft, Length logicalRight, Length marginLogicalLeft, Length marginLogicalRight, |
| int& logicalWidthValue, int& marginLogicalLeftValue, int& marginLogicalRightValue, int& logicalLeftPos); |
| void computePositionedLogicalHeightUsing(Length logicalHeight, const RenderBoxModelObject* containerBlock, |
| int containerLogicalHeight, int bordersPlusPadding, |
| Length logicalTop, Length logicalBottom, Length marginLogicalTop, Length marginLogicalBottom, |
| int& logicalHeightValue, int& marginLogicalTopValue, int& marginLogicalBottomValue, int& logicalTopPos); |
| |
| void computePositionedLogicalHeightReplaced(); |
| void computePositionedLogicalWidthReplaced(); |
| |
| // 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 computePreferredLogicalWidths() { setPreferredLogicalWidthsDirty(false); } |
| |
| private: |
| // The width/height of the contents + borders + padding. The x/y location is relative to our container (which is not always our parent). |
| IntRect m_frameRect; |
| |
| protected: |
| |
| #ifdef ANDROID_LAYOUT |
| void setVisibleWidth(int newWidth); |
| bool checkAndSetRelayoutChildren(bool* relayoutChildren); |
| #endif |
| |
| int m_marginLeft; |
| int m_marginRight; |
| int m_marginTop; |
| int m_marginBottom; |
| |
| // The preferred logical width of the element if it were to break its lines at every possible opportunity. |
| int m_minPreferredLogicalWidth; |
| |
| // The preferred logical width of the element if it never breaks any lines at all. |
| int m_maxPreferredLogicalWidth; |
| |
| // For inline replaced elements, the inline box that owns us. |
| InlineBox* m_inlineBoxWrapper; |
| |
| // Our overflow information. |
| OwnPtr<RenderOverflow> m_overflow; |
| |
| private: |
| // Used to store state between styleWillChange and styleDidChange |
| static bool s_hadOverflowClip; |
| |
| #ifdef ANDROID_LAYOUT |
| int m_visibleWidth; |
| bool m_isVisibleWidthChangedBeforeLayout; |
| #endif |
| }; |
| |
| inline RenderBox* toRenderBox(RenderObject* object) |
| { |
| ASSERT(!object || object->isBox()); |
| return static_cast<RenderBox*>(object); |
| } |
| |
| inline const RenderBox* toRenderBox(const RenderObject* object) |
| { |
| ASSERT(!object || object->isBox()); |
| return static_cast<const RenderBox*>(object); |
| } |
| |
| // This will catch anyone doing an unnecessary cast. |
| void toRenderBox(const RenderBox*); |
| |
| inline RenderBox* RenderBox::previousSiblingBox() const |
| { |
| return toRenderBox(previousSibling()); |
| } |
| |
| inline RenderBox* RenderBox::nextSiblingBox() const |
| { |
| return toRenderBox(nextSibling()); |
| } |
| |
| inline RenderBox* RenderBox::parentBox() const |
| { |
| return toRenderBox(parent()); |
| } |
| |
| inline RenderBox* RenderBox::firstChildBox() const |
| { |
| return toRenderBox(firstChild()); |
| } |
| |
| inline RenderBox* RenderBox::lastChildBox() const |
| { |
| return toRenderBox(lastChild()); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // RenderBox_h |
