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33bb32f549
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convert MOZ_OVERRIDE override
convert MOZ_FINAL final
342 lines
12 KiB
C++
342 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsTableCellFrame_h__
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#define nsTableCellFrame_h__
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#include "mozilla/Attributes.h"
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#include "celldata.h"
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#include "imgIContainer.h"
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#include "nsITableCellLayout.h"
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#include "nscore.h"
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#include "nsContainerFrame.h"
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#include "nsStyleContext.h"
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#include "nsIPercentHeightObserver.h"
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#include "nsGkAtoms.h"
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#include "nsLayoutUtils.h"
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#include "nsTArray.h"
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class nsTableFrame;
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/**
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* nsTableCellFrame
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* data structure to maintain information about a single table cell's frame
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*
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* NOTE: frames are not ref counted. We expose addref and release here
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* so we can change that decsion in the future. Users of nsITableCellLayout
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* should refcount correctly as if this object is being ref counted, though
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* no actual support is under the hood.
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*
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* @author sclark
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*/
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class nsTableCellFrame : public nsContainerFrame,
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public nsITableCellLayout,
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public nsIPercentHeightObserver
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{
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typedef mozilla::image::DrawResult DrawResult;
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public:
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NS_DECL_QUERYFRAME_TARGET(nsTableCellFrame)
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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// default constructor supplied by the compiler
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explicit nsTableCellFrame(nsStyleContext* aContext);
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~nsTableCellFrame();
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virtual void Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
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#ifdef ACCESSIBILITY
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virtual mozilla::a11y::AccType AccessibleType() override;
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#endif
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virtual nsresult AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType) override;
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/** @see nsIFrame::DidSetStyleContext */
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virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) override;
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#ifdef DEBUG
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// Our anonymous block frame is the content insertion frame so these
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// methods should never be called:
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virtual void AppendFrames(ChildListID aListID,
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nsFrameList& aFrameList) override;
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virtual void InsertFrames(ChildListID aListID,
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nsIFrame* aPrevFrame,
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nsFrameList& aFrameList) override;
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virtual void RemoveFrame(ChildListID aListID,
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nsIFrame* aOldFrame) override;
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#endif
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virtual nsContainerFrame* GetContentInsertionFrame() override {
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return GetFirstPrincipalChild()->GetContentInsertionFrame();
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}
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virtual nsMargin GetUsedMargin() const override;
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virtual void NotifyPercentHeight(const nsHTMLReflowState& aReflowState) override;
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virtual bool NeedsToObserve(const nsHTMLReflowState& aReflowState) override;
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/** instantiate a new instance of nsTableRowFrame.
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* @param aPresShell the pres shell for this frame
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*
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* @return the frame that was created
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*/
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friend nsIFrame* NS_NewTableCellFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) override;
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DrawResult PaintCellBackground(nsRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect, nsPoint aPt,
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uint32_t aFlags);
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virtual nsresult ProcessBorders(nsTableFrame* aFrame,
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nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists);
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virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
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virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
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virtual IntrinsicISizeOffsetData
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IntrinsicISizeOffsets(nsRenderingContext* aRenderingContext) override;
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virtual void Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus) override;
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/**
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* Get the "type" of the frame
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*
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* @see nsLayoutAtoms::tableCellFrame
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*/
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virtual nsIAtom* GetType() const override;
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const override;
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#endif
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void VerticallyAlignChild(nscoord aMaxAscent);
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/*
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* Get the value of vertical-align adjusted for CSS 2's rules for a
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* table cell, which means the result is always
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* NS_STYLE_VERTICAL_ALIGN_{TOP,MIDDLE,BOTTOM,BASELINE}.
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*/
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virtual uint8_t GetVerticalAlign() const;
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bool HasVerticalAlignBaseline() const {
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return GetVerticalAlign() == NS_STYLE_VERTICAL_ALIGN_BASELINE;
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}
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bool CellHasVisibleContent(nscoord height,
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nsTableFrame* tableFrame,
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nsIFrame* kidFrame);
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/**
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* Get the first-line baseline of the cell relative to its top border
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* edge, as if the cell were vertically aligned to the top of the row.
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*/
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nscoord GetCellBaseline() const;
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/**
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* return the cell's specified row span. this is what was specified in the
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* content model or in the style info, and is always >= 1.
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* to get the effective row span (the actual value that applies), use GetEffectiveRowSpan()
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* @see nsTableFrame::GetEffectiveRowSpan()
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*/
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virtual int32_t GetRowSpan();
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// there is no set row index because row index depends on the cell's parent row only
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/*---------------- nsITableCellLayout methods ------------------------*/
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/**
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* return the cell's starting row index (starting at 0 for the first row).
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* for continued cell frames the row index is that of the cell's first-in-flow
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* and the column index (starting at 0 for the first column
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*/
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NS_IMETHOD GetCellIndexes(int32_t &aRowIndex, int32_t &aColIndex) override;
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/** return the mapped cell's row index (starting at 0 for the first row) */
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virtual nsresult GetRowIndex(int32_t &aRowIndex) const override;
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/**
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* return the cell's specified col span. this is what was specified in the
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* content model or in the style info, and is always >= 1.
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* to get the effective col span (the actual value that applies), use GetEffectiveColSpan()
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* @see nsTableFrame::GetEffectiveColSpan()
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*/
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virtual int32_t GetColSpan();
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/** return the cell's column index (starting at 0 for the first column) */
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virtual nsresult GetColIndex(int32_t &aColIndex) const override;
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void SetColIndex(int32_t aColIndex);
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/** return the available width given to this frame during its last reflow */
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inline nscoord GetPriorAvailWidth();
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/** set the available width given to this frame during its last reflow */
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inline void SetPriorAvailWidth(nscoord aPriorAvailWidth);
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/** return the desired size returned by this frame during its last reflow */
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inline mozilla::LogicalSize GetDesiredSize();
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/** set the desired size returned by this frame during its last reflow */
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inline void SetDesiredSize(const nsHTMLReflowMetrics & aDesiredSize);
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bool GetContentEmpty();
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void SetContentEmpty(bool aContentEmpty);
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bool HasPctOverHeight();
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void SetHasPctOverHeight(bool aValue);
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nsTableCellFrame* GetNextCell() const;
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virtual nsMargin* GetBorderWidth(nsMargin& aBorder) const;
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virtual DrawResult PaintBackground(nsRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsPoint aPt,
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uint32_t aFlags);
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void DecorateForSelection(nsRenderingContext& aRenderingContext,
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nsPoint aPt);
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virtual bool UpdateOverflow() override;
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virtual bool IsFrameOfType(uint32_t aFlags) const override
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{
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return nsContainerFrame::IsFrameOfType(aFlags & ~(nsIFrame::eTablePart));
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}
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virtual void InvalidateFrame(uint32_t aDisplayItemKey = 0) override;
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virtual void InvalidateFrameWithRect(const nsRect& aRect, uint32_t aDisplayItemKey = 0) override;
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virtual void InvalidateFrameForRemoval() override { InvalidateFrameSubtree(); }
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protected:
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virtual LogicalSides GetLogicalSkipSides(const nsHTMLReflowState* aReflowState= nullptr) const override;
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/**
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* GetBorderOverflow says how far the cell's own borders extend
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* outside its own bounds. In the separated borders model this should
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* just be zero (as it is for most frames), but in the collapsed
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* borders model (for which nsBCTableCellFrame overrides this virtual
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* method), it considers the extents of the collapsed border.
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*/
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virtual nsMargin GetBorderOverflow();
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friend class nsTableRowFrame;
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uint32_t mColIndex; // the starting column for this cell
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nscoord mPriorAvailWidth; // the avail width during the last reflow
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mozilla::LogicalSize mDesiredSize; // the last desired inline and block size
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};
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inline nscoord nsTableCellFrame::GetPriorAvailWidth()
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{ return mPriorAvailWidth;}
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inline void nsTableCellFrame::SetPriorAvailWidth(nscoord aPriorAvailWidth)
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{ mPriorAvailWidth = aPriorAvailWidth;}
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inline mozilla::LogicalSize nsTableCellFrame::GetDesiredSize()
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{ return mDesiredSize; }
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inline void nsTableCellFrame::SetDesiredSize(const nsHTMLReflowMetrics & aDesiredSize)
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{
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mozilla::WritingMode wm = aDesiredSize.GetWritingMode();
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mDesiredSize = aDesiredSize.Size(wm).ConvertTo(GetWritingMode(), wm);
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}
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inline bool nsTableCellFrame::GetContentEmpty()
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{
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return (mState & NS_TABLE_CELL_CONTENT_EMPTY) ==
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NS_TABLE_CELL_CONTENT_EMPTY;
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}
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inline void nsTableCellFrame::SetContentEmpty(bool aContentEmpty)
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{
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if (aContentEmpty) {
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mState |= NS_TABLE_CELL_CONTENT_EMPTY;
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} else {
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mState &= ~NS_TABLE_CELL_CONTENT_EMPTY;
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}
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}
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inline bool nsTableCellFrame::HasPctOverHeight()
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{
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return (mState & NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT) ==
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NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT;
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}
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inline void nsTableCellFrame::SetHasPctOverHeight(bool aValue)
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{
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if (aValue) {
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mState |= NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT;
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} else {
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mState &= ~NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT;
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}
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}
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// nsBCTableCellFrame
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class nsBCTableCellFrame final : public nsTableCellFrame
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{
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typedef mozilla::image::DrawResult DrawResult;
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public:
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NS_DECL_FRAMEARENA_HELPERS
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explicit nsBCTableCellFrame(nsStyleContext* aContext);
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~nsBCTableCellFrame();
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virtual nsIAtom* GetType() const override;
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virtual nsMargin GetUsedBorder() const override;
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virtual bool GetBorderRadii(const nsSize& aFrameSize,
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const nsSize& aBorderArea,
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Sides aSkipSides,
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nscoord aRadii[8]) const override;
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// Get the *inner half of the border only*, in twips.
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virtual nsMargin* GetBorderWidth(nsMargin& aBorder) const override;
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// Get the *inner half of the border only*, in pixels.
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BCPixelSize GetBorderWidth(mozilla::css::Side aSide) const;
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// Set the full (both halves) width of the border
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void SetBorderWidth(mozilla::css::Side aSide, BCPixelSize aPixelValue);
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virtual nsMargin GetBorderOverflow() override;
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const override;
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#endif
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virtual DrawResult PaintBackground(nsRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsPoint aPt,
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uint32_t aFlags) override;
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private:
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// These are the entire width of the border (the cell edge contains only
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// the inner half, per the macros in nsTablePainter.h).
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BCPixelSize mTopBorder;
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BCPixelSize mRightBorder;
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BCPixelSize mBottomBorder;
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BCPixelSize mLeftBorder;
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};
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#endif
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