Mozilla/mozilla/layout/mathml/base/src/nsMathMLmphantomFrame.cpp
shaver%netscape.com 4ffbe71b5d initial and long-awaited import of MathML for Roger Sidje and his crew
git-svn-id: svn://10.0.0.236/trunk@48481 18797224-902f-48f8-a5cc-f745e15eee43
1999-09-21 02:12:01 +00:00

80 lines
2.1 KiB
C++

/*
* 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 MathML Project.
*
* The Initial Developer of the Original Code is The University Of
* Queensland. Portions created by The University Of Queensland are
* Copyright (C) 1999 The University Of Queensland. All Rights Reserved.
*
* Contributor(s):
* Roger B. Sidje <rbs@maths.uq.edu.au>
* David J. Fiddes <D.J.Fiddes@hw.ac.uk>
*/
#include "nsCOMPtr.h"
#include "nsHTMLParts.h"
#include "nsIHTMLContent.h"
#include "nsFrame.h"
#include "nsLineLayout.h"
#include "nsHTMLIIDs.h"
#include "nsIPresContext.h"
#include "nsHTMLAtoms.h"
#include "nsUnitConversion.h"
#include "nsIStyleContext.h"
#include "nsStyleConsts.h"
#include "nsINameSpaceManager.h"
#include "nsIRenderingContext.h"
#include "nsIFontMetrics.h"
#include "nsStyleUtil.h"
#include "nsMathMLAtoms.h"
#include "nsMathMLParts.h"
#include "nsMathMLmphantomFrame.h"
//
// <mphantom> -- make content invisible but preserve its size
//
nsresult
NS_NewMathMLmphantomFrame(nsIFrame** aNewFrame)
{
NS_PRECONDITION(aNewFrame, "null OUT ptr");
if (nsnull == aNewFrame) {
return NS_ERROR_NULL_POINTER;
}
nsMathMLmphantomFrame* it = new nsMathMLmphantomFrame;
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
*aNewFrame = it;
return NS_OK;
}
nsMathMLmphantomFrame::nsMathMLmphantomFrame()
{
}
nsMathMLmphantomFrame::~nsMathMLmphantomFrame()
{
}
NS_METHOD
nsMathMLmphantomFrame::Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer)
{
// do nothing, this is not a bug.
return NS_OK;
}