The Tor Browser / file comparison
comparison: layout/mathml/nsMathMLmencloseFrame.h
layout/mathml/nsMathMLmencloseFrame.h
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
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| -1:000000000000 | 0:514de84b32ac |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 | |
| 7 #ifndef nsMathMLmencloseFrame_h___ | |
| 8 #define nsMathMLmencloseFrame_h___ | |
| 9 | |
| 10 #include "mozilla/Attributes.h" | |
| 11 #include "nsMathMLContainerFrame.h" | |
| 12 | |
| 13 // | |
| 14 // <menclose> -- enclose content with a stretching symbol such | |
| 15 // as a long division sign. | |
| 16 // | |
| 17 | |
| 18 /* | |
| 19 The MathML REC describes: | |
| 20 | |
| 21 The menclose element renders its content inside the enclosing notation | |
| 22 specified by its notation attribute. menclose accepts any number of arguments; | |
| 23 if this number is not 1, its contents are treated as a single "inferred mrow" | |
| 24 containing its arguments, as described in Section 3.1.3 Required Arguments. | |
| 25 */ | |
| 26 | |
| 27 enum nsMencloseNotation | |
| 28 { | |
| 29 NOTATION_LONGDIV = 0x1, | |
| 30 NOTATION_RADICAL = 0x2, | |
| 31 NOTATION_ROUNDEDBOX = 0x4, | |
| 32 NOTATION_CIRCLE = 0x8, | |
| 33 NOTATION_LEFT = 0x10, | |
| 34 NOTATION_RIGHT = 0x20, | |
| 35 NOTATION_TOP = 0x40, | |
| 36 NOTATION_BOTTOM = 0x80, | |
| 37 NOTATION_UPDIAGONALSTRIKE = 0x100, | |
| 38 NOTATION_DOWNDIAGONALSTRIKE = 0x200, | |
| 39 NOTATION_VERTICALSTRIKE = 0x400, | |
| 40 NOTATION_HORIZONTALSTRIKE = 0x800, | |
| 41 NOTATION_UPDIAGONALARROW = 0x1000 | |
| 42 }; | |
| 43 | |
| 44 class nsMathMLmencloseFrame : public nsMathMLContainerFrame { | |
| 45 public: | |
| 46 NS_DECL_FRAMEARENA_HELPERS | |
| 47 | |
| 48 friend nsIFrame* NS_NewMathMLmencloseFrame(nsIPresShell* aPresShell, | |
| 49 nsStyleContext* aContext); | |
| 50 | |
| 51 virtual nsresult | |
| 52 Place(nsRenderingContext& aRenderingContext, | |
| 53 bool aPlaceOrigin, | |
| 54 nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE; | |
| 55 | |
| 56 virtual nsresult | |
| 57 MeasureForWidth(nsRenderingContext& aRenderingContext, | |
| 58 nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE; | |
| 59 | |
| 60 virtual nsresult | |
| 61 AttributeChanged(int32_t aNameSpaceID, | |
| 62 nsIAtom* aAttribute, | |
| 63 int32_t aModType) MOZ_OVERRIDE; | |
| 64 | |
| 65 virtual void | |
| 66 SetAdditionalStyleContext(int32_t aIndex, | |
| 67 nsStyleContext* aStyleContext) MOZ_OVERRIDE; | |
| 68 virtual nsStyleContext* | |
| 69 GetAdditionalStyleContext(int32_t aIndex) const MOZ_OVERRIDE; | |
| 70 | |
| 71 virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, | |
| 72 const nsRect& aDirtyRect, | |
| 73 const nsDisplayListSet& aLists) MOZ_OVERRIDE; | |
| 74 | |
| 75 NS_IMETHOD | |
| 76 InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE; | |
| 77 | |
| 78 NS_IMETHOD | |
| 79 TransmitAutomaticData() MOZ_OVERRIDE; | |
| 80 | |
| 81 virtual nscoord | |
| 82 FixInterFrameSpacing(nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE; | |
| 83 | |
| 84 bool | |
| 85 IsMrowLike() MOZ_OVERRIDE { | |
| 86 return mFrames.FirstChild() != mFrames.LastChild() || | |
| 87 !mFrames.FirstChild(); | |
| 88 } | |
| 89 | |
| 90 protected: | |
| 91 nsMathMLmencloseFrame(nsStyleContext* aContext); | |
| 92 virtual ~nsMathMLmencloseFrame(); | |
| 93 | |
| 94 nsresult PlaceInternal(nsRenderingContext& aRenderingContext, | |
| 95 bool aPlaceOrigin, | |
| 96 nsHTMLReflowMetrics& aDesiredSize, | |
| 97 bool aWidthOnly); | |
| 98 | |
| 99 // functions to parse the "notation" attribute. | |
| 100 nsresult AddNotation(const nsAString& aNotation); | |
| 101 void InitNotations(); | |
| 102 | |
| 103 // Description of the notations to draw | |
| 104 uint32_t mNotationsToDraw; | |
| 105 bool IsToDraw(nsMencloseNotation mask) | |
| 106 { | |
| 107 return mask & mNotationsToDraw; | |
| 108 } | |
| 109 | |
| 110 nscoord mRuleThickness; | |
| 111 nsTArray<nsMathMLChar> mMathMLChar; | |
| 112 int8_t mLongDivCharIndex, mRadicalCharIndex; | |
| 113 nscoord mContentWidth; | |
| 114 nsresult AllocateMathMLChar(nsMencloseNotation mask); | |
| 115 | |
| 116 // Display a frame of the specified type. | |
| 117 // @param aType Type of frame to display | |
| 118 void DisplayNotation(nsDisplayListBuilder* aBuilder, | |
| 119 nsIFrame* aFrame, const nsRect& aRect, | |
| 120 const nsDisplayListSet& aLists, | |
| 121 nscoord aThickness, nsMencloseNotation aType); | |
| 122 }; | |
| 123 | |
| 124 #endif /* nsMathMLmencloseFrame_h___ */ |
