dfad41fa5a
GetVAlign(), GetHAlign(). Remove GetInset(). Bug 243370, patch by Andreas Lange <anlan@lange.cx>, r+sr=roc git-svn-id: svn://10.0.0.236/trunk@220744 18797224-902f-48f8-a5cc-f745e15eee43
127 lines
3.3 KiB
C++
127 lines
3.3 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 Communicator client 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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//
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// Eric Vaughan
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// Netscape Communications
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//
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// See documentation in associated header file
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//
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#include "nsFrameNavigator.h"
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#include "nsCOMPtr.h"
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#include "nsIContent.h"
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#include "nsIFrame.h"
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nsIBox*
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nsFrameNavigator::GetChildBeforeAfter(nsPresContext* aPresContext,
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nsIBox* start, PRBool before)
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{
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nsIBox* parent = start->GetParentBox();
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PRInt32 index = IndexOf(aPresContext, parent,start);
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PRInt32 count = CountFrames(aPresContext, parent);
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if (index == -1)
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return nsnull;
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if (before) {
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if (index == 0) {
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return nsnull;
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}
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return GetChildAt(aPresContext, parent, index-1);
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}
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if (index == count-1)
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return nsnull;
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return GetChildAt(aPresContext, parent, index+1);
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}
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PRInt32
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nsFrameNavigator::IndexOf(nsPresContext* aPresContext, nsIBox* parent, nsIBox* child)
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{
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PRInt32 count = 0;
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nsIBox* box = parent->GetChildBox();
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while (box)
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{
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if (box == child)
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return count;
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box = box->GetNextBox();
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count++;
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}
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return -1;
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}
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PRInt32
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nsFrameNavigator::CountFrames(nsPresContext* aPresContext, nsIBox* aBox)
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{
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PRInt32 count = 0;
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nsIBox* box = aBox->GetChildBox();
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while (box)
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{
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box = box->GetNextBox();
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count++;
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}
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return count;
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}
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nsIBox*
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nsFrameNavigator::GetChildAt(nsPresContext* aPresContext, nsIBox* parent, PRInt32 index)
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{
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PRInt32 count = 0;
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nsIBox* box = parent->GetChildBox();
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while (box)
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{
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if (count == index)
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return box;
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box = box->GetNextBox();
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count++;
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}
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return nsnull;
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}
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