1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* ***** BEGIN LICENSE BLOCK *****
3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 * The contents of this file are subject to the Mozilla Public License Version
6 * 1.1 (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 * http://www.mozilla.org/MPL/
10 * Software distributed under the License is distributed on an "AS IS" basis,
11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 * for the specific language governing rights and limitations under the
15 * The Original Code is Mozilla MathML Project.
17 * The Initial Developer of the Original Code is
18 * The University Of Queensland.
19 * Portions created by the Initial Developer are Copyright (C) 1999
20 * the Initial Developer. All Rights Reserved.
23 * Roger B. Sidje <rbs@maths.uq.edu.au>
25 * Alternatively, the contents of this file may be used under the terms of
26 * either of the GNU General Public License Version 2 or later (the "GPL"),
27 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 * in which case the provisions of the GPL or the LGPL are applicable instead
29 * of those above. If you wish to allow use of your version of this file only
30 * under the terms of either the GPL or the LGPL, and not to allow others to
31 * use your version of this file under the terms of the MPL, indicate your
32 * decision by deleting the provisions above and replace them with the notice
33 * and other provisions required by the GPL or the LGPL. If you do not delete
34 * the provisions above, a recipient may use your version of this file under
35 * the terms of any one of the MPL, the GPL or the LGPL.
37 * ***** END LICENSE BLOCK ***** */
42 #include "nsPresContext.h"
43 #include "nsStyleContext.h"
44 #include "nsStyleConsts.h"
45 #include "nsIRenderingContext.h"
46 #include "nsIFontMetrics.h"
48 #include "nsMathMLmspaceFrame.h"
52 // <mspace> -- space - implementation
56 NS_NewMathMLmspaceFrame(nsIPresShell
* aPresShell
, nsStyleContext
* aContext
)
58 return new (aPresShell
) nsMathMLmspaceFrame(aContext
);
61 NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmspaceFrame
)
63 nsMathMLmspaceFrame::~nsMathMLmspaceFrame()
68 nsMathMLmspaceFrame::IsLeaf() const
74 nsMathMLmspaceFrame::ProcessAttributes(nsPresContext
* aPresContext
)
80 height = number v-unit
89 GetAttribute(mContent
, mPresentationData
.mstyle
, nsGkAtoms::width
,
91 if (!value
.IsEmpty()) {
92 if ((ParseNumericValue(value
, cssValue
) ||
93 ParseNamedSpaceValue(mPresentationData
.mstyle
, value
, cssValue
)) &&
94 cssValue
.IsLengthUnit()) {
95 mWidth
= CalcLength(aPresContext
, mStyleContext
, cssValue
);
101 GetAttribute(mContent
, mPresentationData
.mstyle
, nsGkAtoms::height
,
103 if (!value
.IsEmpty()) {
104 if ((ParseNumericValue(value
, cssValue
) ||
105 ParseNamedSpaceValue(mPresentationData
.mstyle
, value
, cssValue
)) &&
106 cssValue
.IsLengthUnit()) {
107 mHeight
= CalcLength(aPresContext
, mStyleContext
, cssValue
);
113 GetAttribute(mContent
, mPresentationData
.mstyle
, nsGkAtoms::depth_
,
115 if (!value
.IsEmpty()) {
116 if ((ParseNumericValue(value
, cssValue
) ||
117 ParseNamedSpaceValue(mPresentationData
.mstyle
, value
, cssValue
)) &&
118 cssValue
.IsLengthUnit()) {
119 mDepth
= CalcLength(aPresContext
, mStyleContext
, cssValue
);
125 nsMathMLmspaceFrame::Reflow(nsPresContext
* aPresContext
,
126 nsHTMLReflowMetrics
& aDesiredSize
,
127 const nsHTMLReflowState
& aReflowState
,
128 nsReflowStatus
& aStatus
)
130 ProcessAttributes(aPresContext
);
132 mBoundingMetrics
.Clear();
133 mBoundingMetrics
.width
= mWidth
;
134 mBoundingMetrics
.ascent
= mHeight
;
135 mBoundingMetrics
.descent
= mDepth
;
136 mBoundingMetrics
.leftBearing
= 0;
137 mBoundingMetrics
.rightBearing
= mWidth
;
139 aDesiredSize
.ascent
= mHeight
;
140 aDesiredSize
.width
= mWidth
;
141 aDesiredSize
.height
= aDesiredSize
.ascent
+ mDepth
;
142 // Also return our bounding metrics
143 aDesiredSize
.mBoundingMetrics
= mBoundingMetrics
;
145 aStatus
= NS_FRAME_COMPLETE
;
146 NS_FRAME_SET_TRUNCATION(aStatus
, aReflowState
, aDesiredSize
);