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gecko/layout/tables/nsTableFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsTableFrame_h__
#define nsTableFrame_h__
#include "nscore.h"
#include "nsTPtrArray.h"
#include "nsHTMLContainerFrame.h"
#include "nsStyleCoord.h"
#include "nsStyleConsts.h"
#include "nsITableLayout.h"
#include "nsTableColFrame.h"
#include "nsTableColGroupFrame.h"
#include "nsCellMap.h"
#include "nsGkAtoms.h"
#include "nsDisplayList.h"
class nsTableCellFrame;
class nsTableColFrame;
class nsTableRowGroupFrame;
class nsTableRowFrame;
class nsTableColGroupFrame;
class nsITableLayoutStrategy;
class nsStyleContext;
struct nsTableReflowState;
struct nsStylePosition;
/**
* Child list name indices
* @see #GetAdditionalChildListName()
*/
#define NS_TABLE_FRAME_COLGROUP_LIST_INDEX 0
#define NS_TABLE_FRAME_OVERFLOW_LIST_INDEX 1
#define NS_TABLE_FRAME_LAST_LIST_INDEX NS_TABLE_FRAME_OVERFLOW_LIST_INDEX
static inline PRBool IS_TABLE_CELL(nsIAtom* frameType) {
return nsGkAtoms::tableCellFrame == frameType ||
nsGkAtoms::bcTableCellFrame == frameType;
}
class nsDisplayTableItem : public nsDisplayItem
{
public:
nsDisplayTableItem(nsIFrame* aFrame) : nsDisplayItem(aFrame),
mPartHasFixedBackground(PR_FALSE) {}
virtual PRBool IsVaryingRelativeToMovingFrame(nsDisplayListBuilder* aBuilder);
// With collapsed borders, parts of the collapsed border can extend outside
// the table part frames, so allow this display element to blow out to our
// overflow rect. This is also useful for row frames that have spanning
// cells extending outside them.
virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder);
void UpdateForFrameBackground(nsIFrame* aFrame);
private:
PRPackedBool mPartHasFixedBackground;
};
class nsAutoPushCurrentTableItem
{
public:
nsAutoPushCurrentTableItem() : mBuilder(nsnull) {}
void Push(nsDisplayListBuilder* aBuilder, nsDisplayTableItem* aPushItem)
{
mBuilder = aBuilder;
mOldCurrentItem = aBuilder->GetCurrentTableItem();
aBuilder->SetCurrentTableItem(aPushItem);
#ifdef DEBUG
mPushedItem = aPushItem;
#endif
}
~nsAutoPushCurrentTableItem() {
if (!mBuilder)
return;
#ifdef DEBUG
NS_ASSERTION(mBuilder->GetCurrentTableItem() == mPushedItem,
"Someone messed with the current table item behind our back!");
#endif
mBuilder->SetCurrentTableItem(mOldCurrentItem);
}
private:
nsDisplayListBuilder* mBuilder;
nsDisplayTableItem* mOldCurrentItem;
#ifdef DEBUG
nsDisplayTableItem* mPushedItem;
#endif
};
/* ============================================================================ */
/** nsTableFrame maps the inner portion of a table (everything except captions.)
* Used as a pseudo-frame within nsTableOuterFrame, it may also be used
* stand-alone as the top-level frame.
*
* The flowed child list contains row group frames. There is also an additional
* named child list:
* - "ColGroup-list" which contains the col group frames
*
* @see nsGkAtoms::colGroupList
*/
class nsTableFrame : public nsHTMLContainerFrame, public nsITableLayout
{
public:
NS_DECL_QUERYFRAME
/** nsTableOuterFrame has intimate knowledge of the inner table frame */
friend class nsTableOuterFrame;
/** instantiate a new instance of nsTableRowFrame.
* @param aPresShell the pres shell for this frame
*
* @return the frame that was created
*/
friend nsIFrame* NS_NewTableFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
/** sets defaults for table-specific style.
* @see nsIFrame::Init
*/
NS_IMETHOD Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow);
static void* GetProperty(nsIFrame* aFrame,
nsIAtom* aPropertyName,
PRBool aCreateIfNecessary = PR_FALSE);
static float GetTwipsToPixels(nsPresContext* aPresContext);
// Return true if aParentReflowState.frame or any of its ancestors within
// the containing table have non-auto height. (e.g. pct or fixed height)
static PRBool AncestorsHaveStyleHeight(const nsHTMLReflowState& aParentReflowState);
// See if a special height reflow will occur due to having a pct height when
// the pct height basis may not yet be valid.
static void CheckRequestSpecialHeightReflow(const nsHTMLReflowState& aReflowState);
// Notify the frame and its ancestors (up to the containing table) that a special
// height reflow will occur.
static void RequestSpecialHeightReflow(const nsHTMLReflowState& aReflowState);
virtual PRBool IsContainingBlock() const;
static void RePositionViews(nsIFrame* aFrame);
static PRBool PageBreakAfter(nsIFrame& aSourceFrame,
nsIFrame* aNextFrame);
nsPoint GetFirstSectionOrigin(const nsHTMLReflowState& aReflowState) const;
/*
* Notification that aAttribute has changed for content inside a table (cell, row, etc)
*/
void AttributeChangedFor(nsIFrame* aFrame,
nsIContent* aContent,
nsIAtom* aAttribute);
/** @see nsIFrame::Destroy */
virtual void Destroy();
/** @see nsIFrame::DidSetStyleContext */
virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext);
NS_IMETHOD AppendFrames(nsIAtom* aListName,
nsIFrame* aFrameList);
NS_IMETHOD InsertFrames(nsIAtom* aListName,
nsIFrame* aPrevFrame,
nsIFrame* aFrameList);
NS_IMETHOD RemoveFrame(nsIAtom* aListName,
nsIFrame* aOldFrame);
virtual nsMargin GetUsedBorder() const;
virtual nsMargin GetUsedPadding() const;
// Get the offset from the border box to the area where the row groups fit
nsMargin GetChildAreaOffset(const nsHTMLReflowState* aReflowState) const;
/** helper method to find the table parent of any table frame object */
static nsTableFrame* GetTableFrame(nsIFrame* aSourceFrame);
typedef nsresult (* DisplayGenericTablePartTraversal)
(nsDisplayListBuilder* aBuilder, nsFrame* aFrame,
const nsRect& aDirtyRect, const nsDisplayListSet& aLists);
static nsresult GenericTraversal(nsDisplayListBuilder* aBuilder, nsFrame* aFrame,
const nsRect& aDirtyRect, const nsDisplayListSet& aLists);
/**
* Helper method to handle display common to table frames, rowgroup frames
* and row frames. It creates a background display item for handling events
* if necessary, an outline display item if necessary, and displays
* all the the frame's children.
* @param aDisplayItem the display item created for this part, or null
* if this part's border/background painting is delegated to an ancestor
* @param aTraversal a function that gets called to traverse the table
* part's child frames and add their display list items to a
* display list set.
*/
static nsresult DisplayGenericTablePart(nsDisplayListBuilder* aBuilder,
nsFrame* aFrame,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists,
nsDisplayTableItem* aDisplayItem,
DisplayGenericTablePartTraversal aTraversal = GenericTraversal);
// Return the closest sibling of aPriorChildFrame (including aPriroChildFrame)
// of type aChildType.
static nsIFrame* GetFrameAtOrBefore(nsIFrame* aParentFrame,
nsIFrame* aPriorChildFrame,
nsIAtom* aChildType);
PRBool IsAutoWidth(PRBool* aIsPctWidth = nsnull);
PRBool IsAutoHeight();
static PRBool IsPctHeight(nsStyleContext* aStyleContext);
/** @return PR_TRUE if aDisplayType represents a rowgroup of any sort
* (header, footer, or body)
*/
PRBool IsRowGroup(PRInt32 aDisplayType) const;
/** Initialize the table frame with a set of children.
* @see nsIFrame::SetInitialChildList
*/
NS_IMETHOD SetInitialChildList(nsIAtom* aListName,
nsIFrame* aChildList);
/** return the first child belonging to the list aListName.
* @see nsIFrame::GetFirstChild
*/
virtual nsIFrame* GetFirstChild(nsIAtom* aListName) const;
/** @see nsIFrame::GetAdditionalChildListName */
virtual nsIAtom* GetAdditionalChildListName(PRInt32 aIndex) const;
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
/**
* Paint the background of the table and its parts (column groups,
* columns, row groups, rows, and cells), and the table border, and all
* internal borders if border-collapse is on.
*/
void PaintTableBorderBackground(nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsPoint aPt);
/** Get the outer half (i.e., the part outside the height and width of
* the table) of the largest segment (?) of border-collapsed border on
* the table on each side, or 0 for non border-collapsed tables.
*/
nsMargin GetOuterBCBorder() const;
/** Same as above, but only if it's included from the border-box width
* of the table.
*/
nsMargin GetIncludedOuterBCBorder() const;
/** Same as above, but only if it's excluded from the border-box width
* of the table. This is the area that leaks out into the margin
* (or potentially past it, if there is no margin).
*/
nsMargin GetExcludedOuterBCBorder() const;
/** Get width of table + colgroup + col collapse: elements that
* continue along the length of the whole left side.
* see nsTablePainter about continuous borders
*/
nscoord GetContinuousLeftBCBorderWidth() const;
friend class nsDelayedCalcBCBorders;
void SetBCDamageArea(const nsRect& aValue);
PRBool BCRecalcNeeded(nsStyleContext* aOldStyleContext,
nsStyleContext* aNewStyleContext);
void PaintBCBorders(nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect);
/** nsIFrame method overridden to handle table specifics
*/
NS_IMETHOD SetSelected(nsPresContext* aPresContext,
nsIDOMRange *aRange,
PRBool aSelected,
nsSpread aSpread,
SelectionType aType);
virtual void MarkIntrinsicWidthsDirty();
// For border-collapse tables, the caller must not add padding and
// border to the results of these functions.
virtual nscoord GetMinWidth(nsIRenderingContext *aRenderingContext);
virtual nscoord GetPrefWidth(nsIRenderingContext *aRenderingContext);
virtual IntrinsicWidthOffsetData
IntrinsicWidthOffsets(nsIRenderingContext* aRenderingContext);
virtual nsSize ComputeSize(nsIRenderingContext *aRenderingContext,
nsSize aCBSize, nscoord aAvailableWidth,
nsSize aMargin, nsSize aBorder, nsSize aPadding,
PRBool aShrinkWrap);
virtual nsSize ComputeAutoSize(nsIRenderingContext *aRenderingContext,
nsSize aCBSize, nscoord aAvailableWidth,
nsSize aMargin, nsSize aBorder,
nsSize aPadding, PRBool aShrinkWrap);
/**
* A copy of nsFrame::ShrinkWidthToFit that calls a different
* GetPrefWidth, since tables have two different ones.
*/
nscoord TableShrinkWidthToFit(nsIRenderingContext *aRenderingContext,
nscoord aWidthInCB);
// XXXldb REWRITE THIS COMMENT!
/** inner tables are reflowed in two steps.
* <pre>
* if mFirstPassValid is false, this is our first time through since content was last changed
* set pass to 1
* do pass 1
* get min/max info for all cells in an infinite space
* do column balancing
* set mFirstPassValid to true
* do pass 2
* use column widths to Reflow cells
* </pre>
*
* @see nsIFrame::Reflow
*/
NS_IMETHOD Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
nsresult ReflowTable(nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nscoord aAvailHeight,
nsIFrame*& aLastChildReflowed,
nsReflowStatus& aStatus);
nsFrameList& GetColGroups();
NS_IMETHOD GetParentStyleContextFrame(nsPresContext* aPresContext,
nsIFrame** aProviderFrame,
PRBool* aIsChild);
/**
* Get the "type" of the frame
*
* @see nsGkAtoms::tableFrame
*/
virtual nsIAtom* GetType() const;
#ifdef DEBUG
/** @see nsIFrame::GetFrameName */
NS_IMETHOD GetFrameName(nsAString& aResult) const;
#endif
/** return the width of the column at aColIndex */
virtual PRInt32 GetColumnWidth(PRInt32 aColIndex);
/** set the width of the column at aColIndex to aWidth */
virtual void SetColumnWidth(PRInt32 aColIndex, nscoord aWidth);
/** helper to get the cell spacing X style value */
virtual nscoord GetCellSpacingX();
/** helper to get the cell spacing Y style value */
virtual nscoord GetCellSpacingY();
virtual nscoord GetBaseline() const;
/** return the row span of a cell, taking into account row span magic at the bottom
* of a table. The row span equals the number of rows spanned by aCell starting at
* aStartRowIndex, and can be smaller if aStartRowIndex is greater than the row
* index in which aCell originates.
*
* @param aStartRowIndex the cell
* @param aCell the cell
*
* @return the row span, correcting for row spans that extend beyond the bottom
* of the table.
*/
virtual PRInt32 GetEffectiveRowSpan(PRInt32 aStartRowIndex,
const nsTableCellFrame& aCell) const;
virtual PRInt32 GetEffectiveRowSpan(const nsTableCellFrame& aCell,
nsCellMap* aCellMap = nsnull);
/** return the col span of a cell, taking into account col span magic at the edge
* of a table.
*
* @param aCell the cell
*
* @return the col span, correcting for col spans that extend beyond the edge
* of the table.
*/
virtual PRInt32 GetEffectiveColSpan(const nsTableCellFrame& aCell,
nsCellMap* aCellMap = nsnull) const;
/** indicate whether the row has more than one cell that either originates
* or is spanned from the rows above
*/
PRBool HasMoreThanOneCell(PRInt32 aRowIndex) const;
/** return the value of the COLS attribute, adjusted for the
* actual number of columns in the table
*/
PRInt32 GetEffectiveCOLSAttribute();
/** return the column frame associated with aColIndex
* returns nsnull if the col frame has not yet been allocated, or if
* aColIndex is out of range
*/
nsTableColFrame* GetColFrame(PRInt32 aColIndex) const;
/** Insert a col frame reference into the colframe cache and adapt the cellmap
* @param aColFrame - the column frame
* @param aColIndex - index where the column should be inserted into the
* colframe cache
*/
void InsertCol(nsTableColFrame& aColFrame,
PRInt32 aColIndex);
nsTableColGroupFrame* CreateAnonymousColGroupFrame(nsTableColGroupType aType);
PRInt32 DestroyAnonymousColFrames(PRInt32 aNumFrames);
void CreateAnonymousColFrames(PRInt32 aNumColsToAdd,
nsTableColType aColType,
PRBool aDoAppend,
nsIFrame* aPrevCol = nsnull);
void CreateAnonymousColFrames(nsTableColGroupFrame* aColGroupFrame,
PRInt32 aNumColsToAdd,
nsTableColType aColType,
PRBool aAddToColGroupAndTable,
nsIFrame* aPrevCol,
nsIFrame** aFirstNewFrame);
void MatchCellMapToColCache(nsTableCellMap* aCellMap);
/** empty the column frame cache */
void ClearColCache();
void DidResizeColumns();
virtual void AppendCell(nsTableCellFrame& aCellFrame,
PRInt32 aRowIndex);
virtual void InsertCells(nsTArray<nsTableCellFrame*>& aCellFrames,
PRInt32 aRowIndex,
PRInt32 aColIndexBefore);
virtual void RemoveCell(nsTableCellFrame* aCellFrame,
PRInt32 aRowIndex);
void AppendRows(nsTableRowGroupFrame& aRowGroupFrame,
PRInt32 aRowIndex,
nsTArray<nsTableRowFrame*>& aRowFrames);
PRInt32 InsertRow(nsTableRowGroupFrame& aRowGroupFrame,
nsIFrame& aFrame,
PRInt32 aRowIndex,
PRBool aConsiderSpans);
PRInt32 InsertRows(nsTableRowGroupFrame& aRowGroupFrame,
nsTArray<nsTableRowFrame*>& aFrames,
PRInt32 aRowIndex,
PRBool aConsiderSpans);
virtual void RemoveRows(nsTableRowFrame& aFirstRowFrame,
PRInt32 aNumRowsToRemove,
PRBool aConsiderSpans);
/** Insert multiple rowgroups into the table cellmap handling
* @param aFirstRowGroupFrame - first row group to be inserted all siblings
* will be appended too.
*/
void AppendRowGroups(nsIFrame* aFirstRowGroupFrame);
/** Insert multiple rowgroups into the table cellmap handling
* @param aFirstRowGroupFrame - first row group to be inserted
* @param aLastRowGroupFrame - when inserting the siblings of
* aFirstRowGroupFrame stop at this row group
*/
void InsertRowGroups(nsIFrame* aFirstRowGroupFrame,
nsIFrame* aLastRowGroupFrame);
void InsertColGroups(PRInt32 aColIndex,
nsIFrame* aFirstFrame,
nsIFrame* aLastFrame = nsnull);
virtual void RemoveCol(nsTableColGroupFrame* aColGroupFrame,
PRInt32 aColIndex,
PRBool aRemoveFromCache,
PRBool aRemoveFromCellMap);
NS_IMETHOD GetIndexByRowAndColumn(PRInt32 aRow, PRInt32 aColumn, PRInt32 *aIndex);
NS_IMETHOD GetRowAndColumnByIndex(PRInt32 aIndex, PRInt32 *aRow, PRInt32 *aColumn);
PRBool ColumnHasCellSpacingBefore(PRInt32 aColIndex) const;
PRBool HasPctCol() const;
void SetHasPctCol(PRBool aValue);
PRBool HasCellSpanningPctCol() const;
void SetHasCellSpanningPctCol(PRBool aValue);
/**
* To be called on a frame by its parent after setting its size/position and
* calling DidReflow (possibly via FinishReflowChild()). This can also be
* used for child frames which are not being reflown but did have their size
* or position changed.
*
* @param aFrame The frame to invalidate
* @param aOrigRect The original rect of aFrame (before the change).
* @param aOrigOverflowRect The original overflow rect of aFrame.
* @param aIsFirstReflow True if the size/position change is due to the
* first reflow of aFrame.
*/
static void InvalidateFrame(nsIFrame* aFrame,
const nsRect& aOrigRect,
const nsRect& aOrigOverflowRect,
PRBool aIsFirstReflow);
protected:
/** protected constructor.
* @see NewFrame
*/
nsTableFrame(nsStyleContext* aContext);
/** destructor, responsible for mColumnLayoutData */
virtual ~nsTableFrame();
void InitChildReflowState(nsHTMLReflowState& aReflowState);
/** implement abstract method on nsHTMLContainerFrame */
virtual PRIntn GetSkipSides() const;
virtual PRBool ParentDisablesSelection() const; //override default behavior
public:
PRBool IsRowInserted() const;
void SetRowInserted(PRBool aValue);
protected:
// A helper function to reflow a header or footer with unconstrained height
// to see if it should be made repeatable and also to determine its desired
// height.
nsresult SetupHeaderFooterChild(const nsTableReflowState& aReflowState,
nsTableRowGroupFrame* aFrame,
nscoord* aDesiredHeight);
NS_METHOD ReflowChildren(nsTableReflowState& aReflowState,
nsReflowStatus& aStatus,
nsIFrame*& aLastChildReflowed,
nsRect& aOverflowArea);
// This calls the col group and column reflow methods, which do two things:
// (1) set all the dimensions to 0
// (2) notify the table about colgroups or columns with hidden visibility
void ReflowColGroups(nsIRenderingContext* aRenderingContext);
/** return the width of the table taking into account visibility collapse
* on columns and colgroups
* @param aBorderPadding the border and padding of the table
*/
nscoord GetCollapsedWidth(nsMargin aBorderPadding);
/** Adjust the table for visibilty.collapse set on rowgroups, rows, colgroups
* and cols
* @param aDesiredSize the metrics of the table
* @param aBorderPadding the border and padding of the table
*/
void AdjustForCollapsingRowsCols(nsHTMLReflowMetrics& aDesiredSize,
nsMargin aBorderPadding);
/** check if columns or colgroups are collapsed */
void CheckCollapsedColumns();
nsITableLayoutStrategy* LayoutStrategy() const {
return static_cast<nsTableFrame*>(GetFirstInFlow())->
mTableLayoutStrategy;
}
private:
/* Handle a row that got inserted during reflow. aNewHeight is the
new height of the table after reflow. */
void ProcessRowInserted(nscoord aNewHeight);
// WIDTH AND HEIGHT CALCULATION
public:
// calculate the computed height of aFrame including its border and padding given
// its reflow state.
nscoord CalcBorderBoxHeight(const nsHTMLReflowState& aReflowState);
protected:
// update the desired height of this table taking into account the current
// reflow state, the table attributes and the content driven rowgroup heights
// this function can change the overflow area
void CalcDesiredHeight(const nsHTMLReflowState& aReflowState, nsHTMLReflowMetrics& aDesiredSize);
// The following is a helper for CalcDesiredHeight
void DistributeHeightToRows(const nsHTMLReflowState& aReflowState,
nscoord aAmount);
void PlaceChild(nsTableReflowState& aReflowState,
nsIFrame* aKidFrame,
nsHTMLReflowMetrics& aKidDesiredSize,
const nsRect& aOriginalKidRect,
const nsRect& aOriginalKidOverflowRect);
nsIFrame* GetFirstBodyRowGroupFrame();
PRBool MoveOverflowToChildList(nsPresContext* aPresContext);
/**
* Push all our child frames from the aFrames array, in order, starting from the
* frame at aPushFrom to the end of the array. The frames are put on our overflow
* list or moved directly to our next-in-flow if one exists.
*/
typedef nsAutoTPtrArray<nsIFrame, 8> FrameArray;
void PushChildren(const FrameArray& aFrames, PRInt32 aPushFrom);
public:
// put the children frames in the display order (e.g. thead before tbodies
// before tfoot). This will handle calling GetRowGroupFrame() on the
// children, and not append nulls, so the array is guaranteed to contain
// nsTableRowGroupFrames. If there are multiple theads or tfoots, all but
// the first one are treated as tbodies instead.
typedef nsAutoTPtrArray<nsTableRowGroupFrame, 8> RowGroupArray;
void OrderRowGroups(RowGroupArray& aChildren) const;
// Return the thead, if any
nsTableRowGroupFrame* GetTHead() const;
// Return the tfoot, if any
nsTableRowGroupFrame* GetTFoot() const;
protected:
// As above, but does NOT actually call GetRowGroupFrame() on the kids, so
// returns an array of nsIFrames. This is to be used when you really want
// the flowable kids of the table, not the rowgroups. This outputs the thead
// and tfoot if they happen to be rowgroups. All the child nsIFrames of the
// table that return null if you call GetRowGroupFrame() on them will appear
// at the end of the array, after the tfoot, if any.
//
// aHead and aFoot must not be null.
//
// @return the number of frames in aChildren which return non-null if you
// call GetRowGroupFrame() on them.
//
// XXXbz why do we really care about the non-rowgroup kids?
PRUint32 OrderRowGroups(FrameArray& aChildren,
nsTableRowGroupFrame** aHead,
nsTableRowGroupFrame** aFoot) const;
public:
// Returns PR_TRUE if there are any cells above the row at
// aRowIndex and spanning into the row at aRowIndex, the number of
// effective columns limits the search up to that column
PRBool RowIsSpannedInto(PRInt32 aRowIndex, PRInt32 aNumEffCols);
// Returns PR_TRUE if there is a cell originating in aRowIndex
// which spans into the next row, the number of effective
// columns limits the search up to that column
PRBool RowHasSpanningCells(PRInt32 aRowIndex, PRInt32 aNumEffCols);
// Returns PR_TRUE if there are any cells to the left of the column at
// aColIndex and spanning into the column at aColIndex
PRBool ColIsSpannedInto(PRInt32 aColIndex);
// Returns PR_TRUE if there is a cell originating in aColIndex
// which spans into the next col
PRBool ColHasSpanningCells(PRInt32 aColIndex);
protected:
PRBool HaveReflowedColGroups() const;
void SetHaveReflowedColGroups(PRBool aValue);
public:
PRBool IsBorderCollapse() const;
PRBool NeedToCalcBCBorders() const;
void SetNeedToCalcBCBorders(PRBool aValue);
PRBool NeedToCollapse() const;
void SetNeedToCollapse(PRBool aValue);
PRBool HasZeroColSpans() const;
void SetHasZeroColSpans(PRBool aValue);
PRBool NeedColSpanExpansion() const;
void SetNeedColSpanExpansion(PRBool aValue);
/** The GeometryDirty bit is similar to the NS_FRAME_IS_DIRTY frame
* state bit, which implies that all descendants are dirty. The
* GeometryDirty still implies that all the parts of the table are
* dirty, but resizing optimizations should still apply to the
* contents of the individual cells.
*/
void SetGeometryDirty() { mBits.mGeometryDirty = PR_TRUE; }
void ClearGeometryDirty() { mBits.mGeometryDirty = PR_FALSE; }
PRBool IsGeometryDirty() const { return mBits.mGeometryDirty; }
/** Get the cell map for this table frame. It is not always mCellMap.
* Only the firstInFlow has a legit cell map
*/
virtual nsTableCellMap* GetCellMap() const;
/** Iterate over the row groups and adjust the row indices of all rows
* whose index is >= aRowIndex.
* @param aRowIndex - start adjusting with this index
* @param aAdjustment - shift the row index by this amount
*/
void AdjustRowIndices(PRInt32 aRowIndex,
PRInt32 aAdjustment);
/** Reset the rowindices of all rows as they might have changed due to
* rowgroup reordering, exclude new row group frames that show in the
* reordering but are not yet inserted into the cellmap
* @param aFirstRowGroupFrame - first row group to be excluded
* @param aLastRowGroupFrame - last sibling of aFirstRowGroupFrame that
* should be excluded when reseting the row
* indices.
*/
void ResetRowIndices(nsIFrame* aFirstRowGroupFrame = nsnull,
nsIFrame* aLastRowGroupFrame = nsnull);
nsTArray<nsTableColFrame*>& GetColCache();
/** Return aFrame's child if aFrame is an nsScrollFrame, otherwise return aFrame
*/
static nsTableRowGroupFrame* GetRowGroupFrame(nsIFrame* aFrame,
nsIAtom* aFrameTypeIn = nsnull);
protected:
void SetBorderCollapse(PRBool aValue);
void CalcBCBorders();
void ExpandBCDamageArea(nsRect& aRect) const;
void SetColumnDimensions(nscoord aHeight,
const nsMargin& aReflowState);
PRInt32 CollectRows(nsIFrame* aFrame,
nsTArray<nsTableRowFrame*>& aCollection);
public: /* ----- Cell Map public methods ----- */
PRInt32 GetStartRowIndex(nsTableRowGroupFrame& aRowGroupFrame);
/** returns the number of rows in this table.
*/
PRInt32 GetRowCount () const
{
return GetCellMap()->GetRowCount();
}
/** returns the number of columns in this table after redundant columns have been removed
*/
PRInt32 GetEffectiveColCount() const;
/* return the col count including dead cols */
PRInt32 GetColCount () const
{
return GetCellMap()->GetColCount();
}
// return the last col index which isn't of type eColAnonymousCell
PRInt32 GetIndexOfLastRealCol();
/** returns PR_TRUE if table-layout:auto */
virtual PRBool IsAutoLayout();
/*---------------- nsITableLayout methods ------------------------*/
/** Get the cell and associated data for a table cell from the frame's cellmap */
NS_IMETHOD GetCellDataAt(PRInt32 aRowIndex, PRInt32 aColIndex,
nsIDOMElement* &aCell, //out params
PRInt32& aStartRowIndex, PRInt32& aStartColIndex,
PRInt32& aRowSpan, PRInt32& aColSpan,
PRInt32& aActualRowSpan, PRInt32& aActualColSpan,
PRBool& aIsSelected);
/** Get the number of rows and column for a table from the frame's cellmap
* Some rows may not have enough cells (the number returned is the maximum possible),
* which displays as a ragged-right edge table
*/
NS_IMETHOD GetTableSize(PRInt32& aRowCount, PRInt32& aColCount);
/*------------end of nsITableLayout methods -----------------------*/
public:
#ifdef DEBUG
void Dump(PRBool aDumpRows,
PRBool aDumpCols,
PRBool aDumpCellMap);
#endif
protected:
#ifdef DEBUG
void DumpRowGroup(nsIFrame* aChildFrame);
#endif
// DATA MEMBERS
nsAutoTPtrArray<nsTableColFrame, 8> mColFrames;
struct TableBits {
PRUint32 mHaveReflowedColGroups:1; // have the col groups gotten their initial reflow
PRUint32 mHasPctCol:1; // does any cell or col have a pct width
PRUint32 mCellSpansPctCol:1; // does any cell span a col with a pct width (or containing a cell with a pct width)
PRUint32 mIsBorderCollapse:1; // border collapsing model vs. separate model
PRUint32 mRowInserted:1;
PRUint32 mNeedToCalcBCBorders:1;
PRUint32 mGeometryDirty:1;
PRUint32 mLeftContBCBorder:8;
PRUint32 mNeedToCollapse:1; // rows, cols that have visibility:collapse need to be collapsed
PRUint32 mHasZeroColSpans:1;
PRUint32 mNeedColSpanExpansion:1;
PRUint32 mResizedColumns:1; // have we resized columns since last reflow?
} mBits;
nsTableCellMap* mCellMap; // maintains the relationships between rows, cols, and cells
nsITableLayoutStrategy* mTableLayoutStrategy;// the layout strategy for this frame
nsFrameList mColGroups; // the list of colgroup frames
};
inline PRBool nsTableFrame::IsRowGroup(PRInt32 aDisplayType) const
{
return PRBool((NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == aDisplayType) ||
(NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == aDisplayType) ||
(NS_STYLE_DISPLAY_TABLE_ROW_GROUP == aDisplayType));
}
inline void nsTableFrame::SetHaveReflowedColGroups(PRBool aValue)
{
mBits.mHaveReflowedColGroups = aValue;
}
inline PRBool nsTableFrame::HaveReflowedColGroups() const
{
return (PRBool)mBits.mHaveReflowedColGroups;
}
inline PRBool nsTableFrame::HasPctCol() const
{
return (PRBool)mBits.mHasPctCol;
}
inline void nsTableFrame::SetHasPctCol(PRBool aValue)
{
mBits.mHasPctCol = (unsigned)aValue;
}
inline PRBool nsTableFrame::HasCellSpanningPctCol() const
{
return (PRBool)mBits.mCellSpansPctCol;
}
inline void nsTableFrame::SetHasCellSpanningPctCol(PRBool aValue)
{
mBits.mCellSpansPctCol = (unsigned)aValue;
}
inline PRBool nsTableFrame::IsRowInserted() const
{
return (PRBool)mBits.mRowInserted;
}
inline void nsTableFrame::SetRowInserted(PRBool aValue)
{
mBits.mRowInserted = (unsigned)aValue;
}
inline void nsTableFrame::SetNeedToCollapse(PRBool aValue)
{
mBits.mNeedToCollapse = (unsigned)aValue;
}
inline PRBool nsTableFrame::NeedToCollapse() const
{
return (PRBool)mBits.mNeedToCollapse;
}
inline void nsTableFrame::SetHasZeroColSpans(PRBool aValue)
{
mBits.mHasZeroColSpans = (unsigned)aValue;
}
inline PRBool nsTableFrame::HasZeroColSpans() const
{
return (PRBool)mBits.mHasZeroColSpans;
}
inline void nsTableFrame::SetNeedColSpanExpansion(PRBool aValue)
{
mBits.mNeedColSpanExpansion = (unsigned)aValue;
}
inline PRBool nsTableFrame::NeedColSpanExpansion() const
{
return (PRBool)mBits.mNeedColSpanExpansion;
}
inline nsFrameList& nsTableFrame::GetColGroups()
{
return static_cast<nsTableFrame*>(GetFirstInFlow())->mColGroups;
}
inline nsTArray<nsTableColFrame*>& nsTableFrame::GetColCache()
{
return mColFrames;
}
inline PRBool nsTableFrame::IsBorderCollapse() const
{
return (PRBool)mBits.mIsBorderCollapse;
}
inline void nsTableFrame::SetBorderCollapse(PRBool aValue)
{
mBits.mIsBorderCollapse = aValue;
}
inline PRBool nsTableFrame::NeedToCalcBCBorders() const
{
return (PRBool)mBits.mNeedToCalcBCBorders;
}
inline void nsTableFrame::SetNeedToCalcBCBorders(PRBool aValue)
{
mBits.mNeedToCalcBCBorders = (unsigned)aValue;
}
inline nscoord
nsTableFrame::GetContinuousLeftBCBorderWidth() const
{
PRInt32 aPixelsToTwips = nsPresContext::AppUnitsPerCSSPixel();
return BC_BORDER_RIGHT_HALF_COORD(aPixelsToTwips, mBits.mLeftContBCBorder);
}
class nsTableIterator
{
public:
nsTableIterator(nsIFrame& aSource);
nsTableIterator(nsFrameList& aSource);
nsIFrame* First();
nsIFrame* Next();
PRBool IsLeftToRight();
PRInt32 Count();
protected:
void Init(nsIFrame* aFirstChild);
PRBool mLeftToRight;
nsIFrame* mFirstListChild;
nsIFrame* mFirstChild;
nsIFrame* mCurrentChild;
PRInt32 mCount;
};
#define ABORT0() \
{NS_ASSERTION(PR_FALSE, "CellIterator program error"); \
return;}
#define ABORT1(aReturn) \
{NS_ASSERTION(PR_FALSE, "CellIterator program error"); \
return aReturn;}
#endif
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