зеркало из https://github.com/mozilla/pjs.git
296 строки
8.9 KiB
C++
296 строки
8.9 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 MathML Project.
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*
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* The Initial Developer of the Original Code is
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* The University Of Queensland.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Roger B. Sidje <rbs@maths.uq.edu.au>
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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 nsMathMLmtableFrame_h___
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#define nsMathMLmtableFrame_h___
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#include "nsCOMPtr.h"
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#include "nsMathMLContainerFrame.h"
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//
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// <mtable> -- table or matrix
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//
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class nsMathMLmtableOuterFrame : public nsTableOuterFrame,
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public nsMathMLFrame
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{
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public:
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friend nsIFrame* NS_NewMathMLmtableOuterFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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// Overloaded nsIMathMLFrame methods
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NS_IMETHOD
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InheritAutomaticData(nsIFrame* aParent);
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NS_IMETHOD
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UpdatePresentationData(PRUint32 aFlagsValues,
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PRUint32 aWhichFlags);
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NS_IMETHOD
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UpdatePresentationDataFromChildAt(PRInt32 aFirstIndex,
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PRInt32 aLastIndex,
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PRUint32 aFlagsValues,
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PRUint32 aWhichFlags);
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// overloaded nsTableOuterFrame methods
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NS_IMETHOD
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Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD
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AttributeChanged(PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType);
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virtual bool IsFrameOfType(PRUint32 aFlags) const
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{
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return nsTableOuterFrame::IsFrameOfType(aFlags & ~(nsIFrame::eMathML));
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}
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protected:
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nsMathMLmtableOuterFrame(nsStyleContext* aContext) : nsTableOuterFrame(aContext) {}
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virtual ~nsMathMLmtableOuterFrame();
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// helper to find the row frame at a given index, positive or negative, e.g.,
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// 1..n means the first row down to the last row, -1..-n means the last row
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// up to the first row. Used for alignments that are relative to a given row
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nsIFrame*
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GetRowFrameAt(nsPresContext* aPresContext,
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PRInt32 aRowIndex);
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}; // class nsMathMLmtableOuterFrame
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// --------------
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class nsMathMLmtableFrame : public nsTableFrame
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{
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public:
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NS_DECL_FRAMEARENA_HELPERS
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friend nsIFrame* NS_NewMathMLmtableFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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// Overloaded nsTableFrame methods
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NS_IMETHOD
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SetInitialChildList(ChildListID aListID,
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nsFrameList& aChildList);
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NS_IMETHOD
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AppendFrames(ChildListID aListID,
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nsFrameList& aFrameList)
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{
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nsresult rv = nsTableFrame::AppendFrames(aListID, aFrameList);
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RestyleTable();
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return rv;
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}
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NS_IMETHOD
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InsertFrames(ChildListID aListID,
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nsIFrame* aPrevFrame,
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nsFrameList& aFrameList)
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{
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nsresult rv = nsTableFrame::InsertFrames(aListID, aPrevFrame, aFrameList);
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RestyleTable();
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return rv;
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}
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NS_IMETHOD
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RemoveFrame(ChildListID aListID,
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nsIFrame* aOldFrame)
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{
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nsresult rv = nsTableFrame::RemoveFrame(aListID, aOldFrame);
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RestyleTable();
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return rv;
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}
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virtual bool IsFrameOfType(PRUint32 aFlags) const
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{
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return nsTableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eMathML));
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}
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// helper to restyle and reflow the table when a row is changed -- since MathML
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// attributes are inter-dependent and row/colspan can affect the table, it is
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// safer (albeit grossly suboptimal) to just relayout the whole thing.
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void RestyleTable();
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protected:
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nsMathMLmtableFrame(nsStyleContext* aContext) : nsTableFrame(aContext) {}
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virtual ~nsMathMLmtableFrame();
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}; // class nsMathMLmtableFrame
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// --------------
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class nsMathMLmtrFrame : public nsTableRowFrame
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{
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public:
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NS_DECL_FRAMEARENA_HELPERS
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friend nsIFrame* NS_NewMathMLmtrFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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// overloaded nsTableRowFrame methods
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NS_IMETHOD
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AttributeChanged(PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType);
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NS_IMETHOD
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AppendFrames(ChildListID aListID,
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nsFrameList& aFrameList)
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{
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nsresult rv = nsTableRowFrame::AppendFrames(aListID, aFrameList);
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RestyleTable();
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return rv;
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}
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NS_IMETHOD
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InsertFrames(ChildListID aListID,
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nsIFrame* aPrevFrame,
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nsFrameList& aFrameList)
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{
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nsresult rv = nsTableRowFrame::InsertFrames(aListID, aPrevFrame, aFrameList);
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RestyleTable();
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return rv;
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}
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NS_IMETHOD
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RemoveFrame(ChildListID aListID,
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nsIFrame* aOldFrame)
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{
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nsresult rv = nsTableRowFrame::RemoveFrame(aListID, aOldFrame);
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RestyleTable();
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return rv;
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}
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virtual bool IsFrameOfType(PRUint32 aFlags) const
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{
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return nsTableRowFrame::IsFrameOfType(aFlags & ~(nsIFrame::eMathML));
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}
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// helper to restyle and reflow the table -- @see nsMathMLmtableFrame.
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void RestyleTable()
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{
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nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
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if (tableFrame && tableFrame->IsFrameOfType(nsIFrame::eMathML)) {
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// relayout the table
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((nsMathMLmtableFrame*)tableFrame)->RestyleTable();
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}
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}
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protected:
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nsMathMLmtrFrame(nsStyleContext* aContext) : nsTableRowFrame(aContext) {}
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virtual ~nsMathMLmtrFrame();
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}; // class nsMathMLmtrFrame
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// --------------
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class nsMathMLmtdFrame : public nsTableCellFrame
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{
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public:
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NS_DECL_FRAMEARENA_HELPERS
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friend nsIFrame* NS_NewMathMLmtdFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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// overloaded nsTableCellFrame methods
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NS_IMETHOD
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AttributeChanged(PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType);
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virtual PRInt32 GetRowSpan();
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virtual PRInt32 GetColSpan();
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virtual bool IsFrameOfType(PRUint32 aFlags) const
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{
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return nsTableCellFrame::IsFrameOfType(aFlags & ~(nsIFrame::eMathML));
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}
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protected:
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nsMathMLmtdFrame(nsStyleContext* aContext) : nsTableCellFrame(aContext) {}
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virtual ~nsMathMLmtdFrame();
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}; // class nsMathMLmtdFrame
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// --------------
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class nsMathMLmtdInnerFrame : public nsBlockFrame,
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public nsMathMLFrame {
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public:
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friend nsIFrame* NS_NewMathMLmtdInnerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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// Overloaded nsIMathMLFrame methods
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NS_IMETHOD
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UpdatePresentationDataFromChildAt(PRInt32 aFirstIndex,
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PRInt32 aLastIndex,
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PRUint32 aFlagsValues,
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PRUint32 aFlagsToUpdate)
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{
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nsMathMLContainerFrame::PropagatePresentationDataFromChildAt(this,
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aFirstIndex, aLastIndex, aFlagsValues, aFlagsToUpdate);
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return NS_OK;
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}
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NS_IMETHOD
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Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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virtual bool IsFrameOfType(PRUint32 aFlags) const
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{
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return nsBlockFrame::IsFrameOfType(aFlags &
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~(nsIFrame::eMathML | nsIFrame::eExcludesIgnorableWhitespace));
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}
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protected:
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nsMathMLmtdInnerFrame(nsStyleContext* aContext) : nsBlockFrame(aContext) {}
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virtual ~nsMathMLmtdInnerFrame();
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virtual PRIntn GetSkipSides() const { return 0; }
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}; // class nsMathMLmtdInnerFrame
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#endif /* nsMathMLmtableFrame_h___ */
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