181 lines
4.9 KiB
C++
181 lines
4.9 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>
|
|
*/
|
|
|
|
#include "nsCOMPtr.h"
|
|
#include "nsHTMLParts.h"
|
|
#include "nsIHTMLContent.h"
|
|
#include "nsFrame.h"
|
|
#include "nsAreaFrame.h"
|
|
#include "nsLineLayout.h"
|
|
#include "nsHTMLIIDs.h"
|
|
#include "nsIPresContext.h"
|
|
#include "nsHTMLAtoms.h"
|
|
#include "nsUnitConversion.h"
|
|
#include "nsIStyleContext.h"
|
|
#include "nsStyleConsts.h"
|
|
#include "nsStyleChangeList.h"
|
|
#include "nsINameSpaceManager.h"
|
|
#include "nsIRenderingContext.h"
|
|
#include "nsIFontMetrics.h"
|
|
#include "nsStyleUtil.h"
|
|
|
|
#include "nsMathMLmtableFrame.h"
|
|
|
|
//
|
|
// <mtable> -- table or matrix - implementation
|
|
//
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtableOuterFrame
|
|
|
|
nsresult
|
|
NS_NewMathMLmtableOuterFrame (nsIPresShell* aPresShell, nsIFrame** aNewFrame)
|
|
{
|
|
NS_PRECONDITION(aNewFrame, "null OUT ptr");
|
|
if (nsnull == aNewFrame) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsMathMLmtableOuterFrame* it = new (aPresShell) nsMathMLmtableOuterFrame;
|
|
if (!it)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
*aNewFrame = it;
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
nsMathMLmtableOuterFrame::nsMathMLmtableOuterFrame()
|
|
:nsTableOuterFrame()
|
|
{
|
|
}
|
|
|
|
nsMathMLmtableOuterFrame::~nsMathMLmtableOuterFrame()
|
|
{
|
|
}
|
|
|
|
NS_INTERFACE_MAP_BEGIN(nsMathMLmtableOuterFrame)
|
|
NS_INTERFACE_MAP_ENTRY(nsIMathMLFrame)
|
|
NS_INTERFACE_MAP_END_INHERITING(nsTableOuterFrame)
|
|
|
|
NS_IMETHODIMP_(nsrefcnt)
|
|
nsMathMLmtableOuterFrame::AddRef(void)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP_(nsrefcnt)
|
|
nsMathMLmtableOuterFrame::Release(void)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtableOuterFrame::Init(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParent,
|
|
nsIStyleContext* aContext,
|
|
nsIFrame* aPrevInFlow)
|
|
{
|
|
nsresult rv = nsTableOuterFrame::Init(aPresContext, aContent, aParent, aContext, aPrevInFlow);
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtableOuterFrame::Reflow(nsIPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
// we want to return a table that is centered about the axis
|
|
nsresult rv = nsTableOuterFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
|
|
nsStyleFont font;
|
|
mStyleContext->GetStyle(eStyleStruct_Font, font);
|
|
nsCOMPtr<nsIFontMetrics> fm;
|
|
aReflowState.rendContext->SetFont(font.mFont);
|
|
aReflowState.rendContext->GetFontMetrics(*getter_AddRefs(fm));
|
|
|
|
nscoord axisHeight;
|
|
GetAxisHeight(*aReflowState.rendContext, fm, axisHeight);
|
|
|
|
// center about the axis
|
|
aDesiredSize.ascent = aDesiredSize.height/2 + axisHeight;
|
|
aDesiredSize.descent = aDesiredSize.height - aDesiredSize.ascent;
|
|
|
|
// just make-up a bounding metrics
|
|
mBoundingMetrics.Clear();
|
|
mBoundingMetrics.ascent = aDesiredSize.ascent;
|
|
mBoundingMetrics.descent = aDesiredSize.descent;
|
|
mBoundingMetrics.width = aDesiredSize.width;
|
|
mBoundingMetrics.leftBearing = 0;
|
|
mBoundingMetrics.rightBearing = aDesiredSize.width;
|
|
|
|
aDesiredSize.mBoundingMetrics = mBoundingMetrics;
|
|
return rv;
|
|
}
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtdFrame
|
|
|
|
nsresult
|
|
NS_NewMathMLmtdFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
|
|
{
|
|
NS_PRECONDITION(aNewFrame, "null OUT ptr");
|
|
if (nsnull == aNewFrame) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsMathMLmtdFrame* it = new (aPresShell) nsMathMLmtdFrame;
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
// XXX RBS - what about mFlags ?
|
|
// it->SetFlags(NS_AREA_WRAP_SIZE); ?
|
|
*aNewFrame = it;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsMathMLmtdFrame::nsMathMLmtdFrame()
|
|
{
|
|
}
|
|
|
|
nsMathMLmtdFrame::~nsMathMLmtdFrame()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtdFrame::Reflow(nsIPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
// Let the base class do the reflow
|
|
rv = nsAreaFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
|
|
// more about <maligngroup/> and <malignmark/> later
|
|
// ...
|
|
|
|
return rv;
|
|
}
|