зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
4.1 KiB
C++
107 строки
4.1 KiB
C++
/* -*- 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
|
|
|