126 lines
4.4 KiB
C++
126 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsTableRowFrame_h__
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#define nsTableRowFrame_h__
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#include "nscore.h"
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#include "nsContainerFrame.h"
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/**
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* nsTableRowFrame is the frame that maps table rows
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* (HTML tag TR). This class cannot be reused
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* outside of an nsTableRowGroupFrame. It assumes that its parent is an nsTableRowGroupFrame,
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* and its children are nsTableCellFrames.
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*
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* @see nsTableFrame
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* @see nsTableRowGroupFrame
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* @see nsTableCellFrame
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*
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* @author sclark
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*/
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class nsTableRowFrame : public nsContainerFrame
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{
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public:
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/** instantiate a new instance of nsTableRowFrame.
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* @param aInstancePtrResult the new object is returned in this out-param
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* @param aContent the table object to map
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* @param aIndexInParent which child is the new frame?
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* @param aParent the parent of the new frame
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*
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* @return NS_OK if the frame was properly allocated, otherwise an error code
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*/
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static nsresult NewFrame(nsIFrame** aInstancePtrResult,
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nsIContent* aContent,
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PRInt32 aIndexInParent,
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nsIFrame* aParent);
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/** @see nsIFrame::Paint */
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NS_IMETHOD Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect);
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/** ask all children to paint themselves, without clipping (for cells with rowspan>1)
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* @see nsIFrame::Paint
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*/
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virtual void PaintChildren(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect);
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/** calls ResizeReflow for all of its child cells.
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* Cells with rowspan=1 are all set to the same height and stacked horizontally.
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* <P> Cells are not split unless absolutely necessary.
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* <P> Cells are resized in nsTableFrame::BalanceColumnWidths
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* and nsTableFrame::ShrinkWrapChildren
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*
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* @param aDesiredSize width set to width of the sum of the cells, height set to
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* height of cells with rowspan=1.
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*
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* @see nsIFrame::ResizeReflow
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* @see nsTableFrame::BalanceColumnWidths
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* @see nsTableFrame::ShrinkWrapChildren
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*/
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NS_IMETHOD ResizeReflow(nsIPresContext* aPresContext,
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nsReflowMetrics& aDesiredSize,
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const nsSize& aMaxSize,
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nsSize* aMaxElementSize,
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ReflowStatus& aStatus);
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/** @see nsIFrame::IncrementalReflow */
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NS_IMETHOD IncrementalReflow(nsIPresContext* aPresContext,
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nsReflowMetrics& aDesiredSize,
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const nsSize& aMaxSize,
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nsReflowCommand& aReflowCommand,
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ReflowStatus& aStatus);
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/** @see nsContainerFrame::CreateContinuingFrame */
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NS_IMETHOD CreateContinuingFrame(nsIPresContext* aPresContext,
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nsIFrame* aParent,
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nsIFrame*& aContinuingFrame);
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/** set mTallestCell to 0 in anticipation of recalculating it */
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void ResetMaxChildHeight();
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/** set mTallestCell to max(mTallestCell, aChildHeight) */
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void SetMaxChildHeight(PRInt32 aChildHeight);
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/** returns the tallest child in this row (ignoring any cell with rowspans) */
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PRInt32 GetTallestChild() const;
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protected:
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/** protected constructor.
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* @see NewFrame
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*/
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nsTableRowFrame(nsIContent* aContent,
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PRInt32 aIndexInParent,
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nsIFrame* aParentFrame);
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/** destructor */
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virtual ~nsTableRowFrame();
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private:
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PRInt32 mTallestCell; // not my height, but the height of my tallest child
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};
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#endif
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