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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 FixedTableLayoutStrategy_h__
#define FixedTableLayoutStrategy_h__
#include "nscore.h"
#include "BasicTableLayoutStrategy.h"
#include "nsCoord.h"
class nsVoidArray;
class nsTableFrame;
struct nsStylePosition;
/* ---------- FixedTableLayoutStrategy ---------- */
/** Implementation of HTML4 "table-layout=fixed" table layout.
* The input to this class is the resolved styles for both the
* table columns and the cells in row0.
* The output from this class is to set the column widths in
* mTableFrame.
*/
class FixedTableLayoutStrategy : public BasicTableLayoutStrategy
{
public:
/** Public constructor.
* @param aFrame the table frame for which this delegate will do layout
*/
FixedTableLayoutStrategy(nsTableFrame *aFrame);
/** destructor */
virtual ~FixedTableLayoutStrategy();
/** Called during resize reflow to determine the new column widths
* @param aReflowState - the reflow state for mTableFrame
*/
virtual PRBool BalanceColumnWidths(const nsHTMLReflowState& aReflowState);
/**
* Calculate the basis for percent width calculations of the table elements
* @param aReflowState - the reflow state of the table
* @param aAvailWidth - the available width for the table
* @return - the basis for percent calculations
*/
virtual nscoord CalcPctAdjTableWidth(const nsHTMLReflowState& aReflowState,
nscoord aAvailWidth) {return 0;};
protected:
/* assign the width of all columns
* if there is a colframe with a width attribute, use it as the column width.
* otherwise if there is a cell in the first row and it has a width attribute, use it.
* if this cell includes a colspan, width is divided equally among spanned columns
* otherwise the cell get a proportion of the remaining space.
* as determined by the table width attribute. If no table width attribute, it gets 0 width
* Computes the minimum and maximum table widths.
*
* Set column width information in each column frame and in the table frame.
*
* @return PR_TRUE if all is well, PR_FALSE if there was an unrecoverable error
*
*/
virtual PRBool AssignNonPctColumnWidths(nscoord aComputedWidth,
const nsHTMLReflowState& aReflowState);
};
#endif
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