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95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
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/* -*- 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 "nsGridRowGroupFrame.h"
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#include "nsGridRowLeafLayout.h"
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#include "nsGridRow.h"
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#include "nsBoxLayoutState.h"
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#include "nsGridLayout2.h"
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nsIFrame*
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NS_NewGridRowGroupFrame (nsIPresShell* aPresShell,
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nsStyleContext* aContext,
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PRBool aIsRoot,
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nsIBoxLayout* aLayoutManager)
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{
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return
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new (aPresShell) nsGridRowGroupFrame (aPresShell, aContext, aIsRoot, aLayoutManager);
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}
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/**
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* This is redefined because row groups have a funny property. If they are flexible
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* then their flex must be equal to the sum of their children's flexes.
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*/
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nscoord
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nsGridRowGroupFrame::GetFlex(nsBoxLayoutState& aState)
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{
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// if we are flexible out flexibility is determined by our columns.
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// so first get the our flex. If not 0 then our flex is the sum of
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// our columns flexes.
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if (!DoesNeedRecalc(mFlex))
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return mFlex;
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if (nsBoxFrame::GetFlex(aState) == 0)
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return 0;
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// ok we are flexible add up our children
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nscoord totalFlex = 0;
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nsIBox* child = GetChildBox();
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while (child)
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{
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totalFlex += child->GetFlex(aState);
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child = child->GetNextBox();
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}
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mFlex = totalFlex;
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return totalFlex;
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}
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