зеркало из https://github.com/mozilla/pjs.git
178 строки
6.2 KiB
C++
178 строки
6.2 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 nsTableColFrame_h__
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#define nsTableColFrame_h__
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#include "nscore.h"
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#include "nsContainerFrame.h"
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#include "nsTableFrame.h"
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class nsVoidArray;
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class nsTableCellFrame;
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// this is used to index arrays of widths in nsColFrame and to group important widths
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// for calculations. It is important that the order: min, desired, fixed be maintained
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// for each category (con, adj).
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// XXX MIN_ADJ, DES_ADJ, PCT_ADJ, DES_PRO can probably go away and be replaced
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// by MIN_CON, DES_CON, PCT_CON, DES_CON saving 16 bytes per col frame
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#define WIDTH_NOT_SET -1
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#define NUM_WIDTHS 9
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#define NUM_MAJOR_WIDTHS 3 // MIN, DES, FIX
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#define MIN_CON 0 // minimum width required of the content + padding
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#define DES_CON 1 // desired width of the content + padding
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#define FIX 2 // fixed width either from the content or cell, col, etc. + padding
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#define MIN_ADJ 3 // minimum width + padding due to col spans
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#define DES_ADJ 4 // desired width + padding due to col spans
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#define FIX_ADJ 5 // fixed width + padding due to col spans
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#define PCT 6 // percent width of cell or col
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#define PCT_ADJ 7 // percent width of cell or col from percent colspan
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#define MIN_PRO 8 // desired width due to proportional <col>s or cols attribute
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enum nsColConstraint {
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eNoConstraint = 0,
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ePixelConstraint = 1, // pixel width
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ePercentConstraint = 2, // percent width
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eProportionConstraint = 3, // 1*, 2*, etc. cols attribute assigns 1*
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e0ProportionConstraint = 4 // 0*, means to force to min width
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};
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class nsTableColFrame : public nsFrame {
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public:
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enum {eWIDTH_SOURCE_NONE =0, // no cell has contributed to the width style
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eWIDTH_SOURCE_CELL =1, // a cell specified a width
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eWIDTH_SOURCE_CELL_WITH_SPAN=2 // a cell implicitly specified a width via colspan
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};
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void InitColFrame(PRInt32 aColIndex);
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/** instantiate a new instance of nsTableColFrame.
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* @param aResult 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 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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friend nsresult
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NS_NewTableColFrame(nsIFrame** aResult);
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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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nsFramePaintLayer aWhichLayer);
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NS_IMETHOD Reflow(nsIPresContext& aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD GetFrameName(nsString& aResult) const;
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#ifdef DEBUG
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NS_IMETHOD SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const;
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#endif
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/** return the index of the column the col represents. always >= 0 */
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virtual PRInt32 GetColumnIndex ();
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/** return the number of the columns the col represents. always >= 0 */
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virtual PRInt32 GetSpan ();
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/** set the index of the column this content object represents. must be >= 0 */
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virtual void SetColumnIndex (int aColIndex);
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/** convenience method, calls into cellmap */
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nsVoidArray * GetCells();
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nscoord GetWidth(PRUint32 aWidthType);
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void SetWidth(PRUint32 aWidthType,
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nscoord aWidth);
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nscoord GetMinWidth();
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nscoord GetDesWidth();
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nscoord GetFixWidth();
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nscoord GetPctWidth();
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void SetConstraint(nsColConstraint aConstraint);
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nsColConstraint GetConstraint() const;
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void SetConstrainingCell(nsTableCellFrame* aCellFrame);
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nsTableCellFrame* GetConstrainingCell() const;
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/** convenience method, calls into cellmap */
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PRInt32 Count() const;
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/** Return true if this col was constructed implicitly due to cells needing a col.
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* Return false if this col was constructed due to content having display type of table-col
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*/
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PRBool IsAnonymous();
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void SetIsAnonymous(PRBool aValue);
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void ResetSizingInfo();
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void Dump(PRInt32 aIndent);
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protected:
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nsTableColFrame();
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~nsTableColFrame();
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/** the starting index of the column (starting at 0) that this col object represents */
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PRInt32 mColIndex;
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PRBool mIsAnonymous;
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// Widths including MIN_CON, DES_CON, FIX_CON, MIN_ADJ, DES_ADJ, FIX_ADJ, PCT, PCT_ADJ, MIN_PRO
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nscoord mWidths[NUM_WIDTHS];
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nscoord mProportion; // proportion for porportional width col
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nsColConstraint mConstraint;
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nsTableCellFrame* mConstrainingCell;
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};
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inline void nsTableColFrame::InitColFrame(PRInt32 aColIndex)
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{
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NS_ASSERTION(0<=aColIndex, "bad col index param");
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mColIndex = aColIndex;
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}
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inline PRInt32 nsTableColFrame::GetColumnIndex()
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{ return mColIndex; }
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inline void nsTableColFrame::SetColumnIndex (int aColIndex)
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{ mColIndex = aColIndex;}
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inline nsColConstraint nsTableColFrame::GetConstraint() const
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{ return mConstraint; }
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inline void nsTableColFrame::SetConstraint(nsColConstraint aConstraint)
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{ mConstraint = aConstraint;}
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inline PRBool nsTableColFrame::IsAnonymous()
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{ return mIsAnonymous; }
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inline void nsTableColFrame::SetIsAnonymous(PRBool aIsAnonymous)
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{ mIsAnonymous = aIsAnonymous; }
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inline void nsTableColFrame::SetConstrainingCell(nsTableCellFrame* aCellFrame)
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{ mConstrainingCell = aCellFrame; }
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inline nsTableCellFrame* nsTableColFrame::GetConstrainingCell() const
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{ return mConstrainingCell; }
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#endif
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