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24e7cb1f78
* we know all types frames may be cast to at compile time, so instead of extensible GUID IIDs, use a big enum (see nsQueryFrame::FrameIID) * eliminate all vestiges of refcounting, since frames aren't refcounted Some frames (SVG frames in particular) still implement nsISupports-derived interfaces, for example nsISVGValue. There is a FrameIID for nsISVGValue that lets you go from a frame to the XPCOM interface, but you can't query back. r+sr=roc nsITextControlFrame didn't have an IID the first time around, but this wasn't a compile error because nsITextControlFrame::kFrameIID inherited from nsIFormControlFrame::kFrameIID. I've added a static analysis pass to verify the correct behavior, since I can't figure out a way to make the compiler do it. --HG-- extra : rebase_source : 4894a2ca0278e2ab92f27459db77165f8348cf41
113 lines
4.9 KiB
C++
113 lines
4.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsITableLayout_h__
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#define nsITableLayout_h__
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#include "nsQueryFrame.h"
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class nsIDOMElement;
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/**
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* nsITableLayout
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* interface for layout objects that act like tables.
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* initially, we use this to get cell info
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*
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* @author sclark
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*/
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class nsITableLayout
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{
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public:
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NS_DECLARE_FRAME_ACCESSOR(nsITableLayout)
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/** return all the relevant layout information about a cell.
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* @param aRowIndex a row which the cell intersects
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* @param aColIndex a col which the cell intersects
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* @param aCell [OUT] the content representing the cell at (aRowIndex, aColIndex)
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* @param aStartRowIndex [IN/OUT] the row in which aCell starts
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* @param aStartColIndex [IN/OUT] the col in which aCell starts
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* Initialize these with the "candidate" start indexes to use
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* for searching through the table when a cell isn't found
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* because of "holes" in the cellmap
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* when ROWSPAN and/or COLSPAN > 1
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* @param aRowSpan [OUT] the value of the ROWSPAN attribute (may be 0 or actual number)
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* @param aColSpan [OUT] the value of the COLSPAN attribute (may be 0 or actual number)
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* @param aActualRowSpan [OUT] the actual number of rows aCell spans
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* @param aActualColSpan [OUT] the acutal number of cols aCell spans
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* @param aIsSelected [OUT] PR_TRUE if the frame that maps aCell is selected
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* in the presentation shell that owns this.
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*/
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NS_IMETHOD GetCellDataAt(PRInt32 aRowIndex, PRInt32 aColIndex,
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nsIDOMElement* &aCell, //out params
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PRInt32& aStartRowIndex, PRInt32& aStartColIndex,
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PRInt32& aRowSpan, PRInt32& aColSpan,
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PRInt32& aActualRowSpan, PRInt32& aActualColSpan,
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PRBool& aIsSelected)=0;
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/** Get the number of rows and column for a table from the frame's cellmap
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* Some rows may not have enough cells (the number returned is the maximum possible),
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* which displays as a ragged-right edge table
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*/
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NS_IMETHOD GetTableSize(PRInt32& aRowCount, PRInt32& aColCount)=0;
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/**
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* Retrieves the index of the cell at the given coordinates.
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*
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* @note The index is the order number of the cell calculated from top left
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* cell to the right bottom cell of the table.
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*
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* @param aRow [in] the row the cell is in
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* @param aColumn [in] the column the cell is in
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* @param aIndex [out] the index to be returned
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*/
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NS_IMETHOD GetIndexByRowAndColumn(PRInt32 aRow, PRInt32 aColumn,
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PRInt32 *aIndex) = 0;
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/**
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* Retrieves the coordinates of the cell at the given index.
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*
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* @see nsITableLayout::GetIndexByRowAndColumn()
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*
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* @param aIndex [in] the index for which the coordinates are to be retrieved
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* @param aRow [out] the resulting row coordinate
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* @param aColumn [out] the resulting column coordinate
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*/
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NS_IMETHOD GetRowAndColumnByIndex(PRInt32 aIndex,
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PRInt32 *aRow, PRInt32 *aColumn) = 0;
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};
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#endif
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