/* -*- 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 nsTableRowFrame_h__ #define nsTableRowFrame_h__ #include "nscore.h" #include "nsHTMLContainerFrame.h" #include "nsTablePainter.h" class nsTableFrame; class nsTableCellFrame; struct nsTableCellReflowState; // This is also used on rows, from nsTableRowGroupFrame.h // #define NS_REPEATED_ROW_OR_ROWGROUP 0x10000000 // Indicates whether this row has any cells that have // non-auto-height and rowspan=1 #define NS_ROW_HAS_CELL_WITH_STYLE_HEIGHT 0x20000000 #define NS_TABLE_ROW_HAS_UNPAGINATED_HEIGHT 0x40000000 /** * nsTableRowFrame is the frame that maps table rows * (HTML tag TR). This class cannot be reused * outside of an nsTableRowGroupFrame. It assumes that its parent is an nsTableRowGroupFrame, * and its children are nsTableCellFrames. * * @see nsTableFrame * @see nsTableRowGroupFrame * @see nsTableCellFrame */ class nsTableRowFrame : public nsHTMLContainerFrame { public: NS_DECLARE_FRAME_ACCESSOR(nsTableRowFrame) NS_DECL_QUERYFRAME virtual ~nsTableRowFrame(); NS_IMETHOD Init(nsIContent* aContent, nsIFrame* aParent, nsIFrame* aPrevInFlow); /** @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); /** instantiate a new instance of nsTableRowFrame. * @param aPresShell the pres shell for this frame * * @return the frame that was created */ friend nsIFrame* NS_NewTableRowFrame(nsIPresShell* aPresShell, nsStyleContext* aContext); virtual nsMargin GetUsedMargin() const; virtual nsMargin GetUsedBorder() const; virtual nsMargin GetUsedPadding() const; NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder, const nsRect& aDirtyRect, const nsDisplayListSet& aLists); nsTableCellFrame* GetFirstCell() ; /** calls Reflow for all of its child cells. * Cells with rowspan=1 are all set to the same height and stacked horizontally. *

Cells are not split unless absolutely necessary. *

Cells are resized in nsTableFrame::BalanceColumnWidths * and nsTableFrame::ShrinkWrapChildren * * @param aDesiredSize width set to width of the sum of the cells, height set to * height of cells with rowspan=1. * * @see nsIFrame::Reflow * @see nsTableFrame::BalanceColumnWidths * @see nsTableFrame::ShrinkWrapChildren */ NS_IMETHOD Reflow(nsPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus); void DidResize(); /** * Get the "type" of the frame * * @see nsGkAtoms::tableRowFrame */ virtual nsIAtom* GetType() const; #ifdef DEBUG NS_IMETHOD GetFrameName(nsAString& aResult) const; #endif void UpdateHeight(nscoord aHeight, nscoord aAscent, nscoord aDescent, nsTableFrame* aTableFrame = nsnull, nsTableCellFrame* aCellFrame = nsnull); void ResetHeight(nscoord aRowStyleHeight); // calculate the height, considering content height of the // cells and the style height of the row and cells, excluding pct heights nscoord CalcHeight(const nsHTMLReflowState& aReflowState); // Support for cells with 'vertical-align: baseline'. /** * returns the max-ascent amongst all the cells that have * 'vertical-align: baseline', *including* cells with rowspans. * returns 0 if we don't have any cell with 'vertical-align: baseline' */ nscoord GetMaxCellAscent() const; /* return the row ascent */ nscoord GetRowBaseline(); /** returns the ordinal position of this row in its table */ virtual PRInt32 GetRowIndex() const; /** set this row's starting row index */ void SetRowIndex (int aRowIndex); /** used by row group frame code */ nscoord ReflowCellFrame(nsPresContext* aPresContext, const nsHTMLReflowState& aReflowState, PRBool aIsTopOfPage, nsTableCellFrame* aCellFrame, nscoord aAvailableHeight, nsReflowStatus& aStatus); /** * Collapse the row if required, apply col and colgroup visibility: collapse * info to the cells in the row. * @return he amount to shift up all following rows * @param aRowOffset - shift the row up by this amount * @param aWidth - new width of the row * @param aCollapseGroup - parent rowgroup is collapsed so this row needs * to be collapsed * @param aDidCollapse - the row has been collapsed */ nscoord CollapseRowIfNecessary(nscoord aRowOffset, nscoord aWidth, PRBool aCollapseGroup, PRBool& aDidCollapse); void InsertCellFrame(nsTableCellFrame* aFrame, nsTableCellFrame* aPrevSibling); void InsertCellFrame(nsTableCellFrame* aFrame, PRInt32 aColIndex); void RemoveCellFrame(nsTableCellFrame* aFrame); nsresult CalculateCellActualSize(nsIFrame* aRowFrame, nscoord& aDesiredWidth, nscoord& aDesiredHeight, nscoord aAvailWidth); PRBool IsFirstInserted() const; void SetFirstInserted(PRBool aValue); PRBool GetContentHeight() const; void SetContentHeight(nscoord aTwipValue); PRBool HasStyleHeight() const; PRBool HasFixedHeight() const; void SetHasFixedHeight(PRBool aValue); PRBool HasPctHeight() const; void SetHasPctHeight(PRBool aValue); nscoord GetFixedHeight() const; void SetFixedHeight(nscoord aValue); float GetPctHeight() const; void SetPctHeight(float aPctValue, PRBool aForce = PR_FALSE); nscoord GetHeight(nscoord aBasis = 0) const; nsTableRowFrame* GetNextRow() const; PRBool HasUnpaginatedHeight(); void SetHasUnpaginatedHeight(PRBool aValue); nscoord GetUnpaginatedHeight(nsPresContext* aPresContext); void SetUnpaginatedHeight(nsPresContext* aPresContext, nscoord aValue); nscoord GetTopBCBorderWidth(); void SetTopBCBorderWidth(BCPixelSize aWidth); nscoord GetBottomBCBorderWidth(); void SetBottomBCBorderWidth(BCPixelSize aWidth); nsMargin* GetBCBorderWidth(nsMargin& aBorder); /** * Gets inner border widths before collapsing with cell borders * Caller must get bottom border from next row or from table * GetContinuousBCBorderWidth will not overwrite aBorder.bottom * see nsTablePainter about continuous borders */ void GetContinuousBCBorderWidth(nsMargin& aBorder); /** * @returns outer top bc border == prev row's bottom inner */ nscoord GetOuterTopContBCBorderWidth(); /** * Sets full border widths before collapsing with cell borders * @param aForSide - side to set; only accepts right, left, and top */ void SetContinuousBCBorderWidth(PRUint8 aForSide, BCPixelSize aPixelValue); protected: /** protected constructor. * @see NewFrame */ nsTableRowFrame(nsStyleContext *aContext); void InitChildReflowState(nsPresContext& aPresContext, const nsSize& aAvailSize, PRBool aBorderCollapse, nsTableCellReflowState& aReflowState); /** implement abstract method on nsHTMLContainerFrame */ virtual PRIntn GetSkipSides() const; // row-specific methods nscoord ComputeCellXOffset(const nsHTMLReflowState& aState, nsIFrame* aKidFrame, const nsMargin& aKidMargin) const; /** * Called for incremental/dirty and resize reflows. If aDirtyOnly is true then * only reflow dirty cells. */ NS_IMETHOD ReflowChildren(nsPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsTableFrame& aTableFrame, nsReflowStatus& aStatus); private: struct RowBits { unsigned mRowIndex:29; unsigned mHasFixedHeight:1; // set if the dominating style height on the row or any cell is pixel based unsigned mHasPctHeight:1; // set if the dominating style height on the row or any cell is pct based unsigned mFirstInserted:1; // if true, then it was the top most newly inserted row } mBits; // the desired height based on the content of the tallest cell in the row nscoord mContentHeight; // the height based on a style percentage height on either the row or any cell // if mHasPctHeight is set nscoord mStylePctHeight; // the height based on a style pixel height on the row or any // cell if mHasFixedHeight is set nscoord mStyleFixedHeight; // max-ascent and max-descent amongst all cells that have 'vertical-align: baseline' nscoord mMaxCellAscent; // does include cells with rowspan > 1 nscoord mMaxCellDescent; // does *not* include cells with rowspan > 1 // border widths in pixels in the collapsing border model of the *inner* // half of the border only BCPixelSize mTopBorderWidth; BCPixelSize mBottomBorderWidth; BCPixelSize mRightContBorderWidth; BCPixelSize mTopContBorderWidth; BCPixelSize mLeftContBorderWidth; /** * Sets the NS_ROW_HAS_CELL_WITH_STYLE_HEIGHT bit to indicate whether * this row has any cells that have non-auto-height. (Row-spanning * cells are ignored.) */ void InitHasCellWithStyleHeight(nsTableFrame* aTableFrame); }; inline PRInt32 nsTableRowFrame::GetRowIndex() const { return PRInt32(mBits.mRowIndex); } inline void nsTableRowFrame::SetRowIndex (int aRowIndex) { mBits.mRowIndex = aRowIndex; } inline PRBool nsTableRowFrame::IsFirstInserted() const { return PRBool(mBits.mFirstInserted); } inline void nsTableRowFrame::SetFirstInserted(PRBool aValue) { mBits.mFirstInserted = aValue; } inline PRBool nsTableRowFrame::HasStyleHeight() const { return (PRBool)mBits.mHasFixedHeight || (PRBool)mBits.mHasPctHeight; } inline PRBool nsTableRowFrame::HasFixedHeight() const { return (PRBool)mBits.mHasFixedHeight; } inline void nsTableRowFrame::SetHasFixedHeight(PRBool aValue) { mBits.mHasFixedHeight = aValue; } inline PRBool nsTableRowFrame::HasPctHeight() const { return (PRBool)mBits.mHasPctHeight; } inline void nsTableRowFrame::SetHasPctHeight(PRBool aValue) { mBits.mHasPctHeight = aValue; } inline nscoord nsTableRowFrame::GetContentHeight() const { return mContentHeight; } inline void nsTableRowFrame::SetContentHeight(nscoord aValue) { mContentHeight = aValue; } inline nscoord nsTableRowFrame::GetFixedHeight() const { if (mBits.mHasFixedHeight) return mStyleFixedHeight; else return 0; } inline float nsTableRowFrame::GetPctHeight() const { if (mBits.mHasPctHeight) return (float)mStylePctHeight / 100.0f; else return 0.0f; } inline PRBool nsTableRowFrame::HasUnpaginatedHeight() { return (mState & NS_TABLE_ROW_HAS_UNPAGINATED_HEIGHT) == NS_TABLE_ROW_HAS_UNPAGINATED_HEIGHT; } inline void nsTableRowFrame::SetHasUnpaginatedHeight(PRBool aValue) { if (aValue) { mState |= NS_TABLE_ROW_HAS_UNPAGINATED_HEIGHT; } else { mState &= ~NS_TABLE_ROW_HAS_UNPAGINATED_HEIGHT; } } inline nscoord nsTableRowFrame::GetTopBCBorderWidth() { return mTopBorderWidth; } inline void nsTableRowFrame::SetTopBCBorderWidth(BCPixelSize aWidth) { mTopBorderWidth = aWidth; } inline nscoord nsTableRowFrame::GetBottomBCBorderWidth() { return mBottomBorderWidth; } inline void nsTableRowFrame::SetBottomBCBorderWidth(BCPixelSize aWidth) { mBottomBorderWidth = aWidth; } inline nsMargin* nsTableRowFrame::GetBCBorderWidth(nsMargin& aBorder) { aBorder.left = aBorder.right = 0; aBorder.top = nsPresContext::CSSPixelsToAppUnits(mTopBorderWidth); aBorder.bottom = nsPresContext::CSSPixelsToAppUnits(mBottomBorderWidth); return &aBorder; } inline void nsTableRowFrame::GetContinuousBCBorderWidth(nsMargin& aBorder) { PRInt32 aPixelsToTwips = nsPresContext::AppUnitsPerCSSPixel(); aBorder.right = BC_BORDER_LEFT_HALF_COORD(aPixelsToTwips, mLeftContBorderWidth); aBorder.top = BC_BORDER_BOTTOM_HALF_COORD(aPixelsToTwips, mTopContBorderWidth); aBorder.left = BC_BORDER_RIGHT_HALF_COORD(aPixelsToTwips, mRightContBorderWidth); } inline nscoord nsTableRowFrame::GetOuterTopContBCBorderWidth() { PRInt32 aPixelsToTwips = nsPresContext::AppUnitsPerCSSPixel(); return BC_BORDER_TOP_HALF_COORD(aPixelsToTwips, mTopContBorderWidth); } #endif