layout/mathml/nsMathMLmoFrame.h

branch
TOR_BUG_9701
changeset 14
925c144e1f1f
equal deleted inserted replaced
-1:000000000000 0:04731a8eb9ff
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 #ifndef nsMathMLmoFrame_h___
7 #define nsMathMLmoFrame_h___
8
9 #include "mozilla/Attributes.h"
10 #include "nsMathMLTokenFrame.h"
11 #include "nsMathMLChar.h"
12
13 //
14 // <mo> -- operator, fence, or separator
15 //
16
17 class nsMathMLmoFrame : public nsMathMLTokenFrame {
18 public:
19 NS_DECL_FRAMEARENA_HELPERS
20
21 friend nsIFrame* NS_NewMathMLmoFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
22
23 virtual eMathMLFrameType GetMathMLFrameType() MOZ_OVERRIDE;
24
25 virtual void
26 SetAdditionalStyleContext(int32_t aIndex,
27 nsStyleContext* aStyleContext) MOZ_OVERRIDE;
28 virtual nsStyleContext*
29 GetAdditionalStyleContext(int32_t aIndex) const MOZ_OVERRIDE;
30
31 virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
32 const nsRect& aDirtyRect,
33 const nsDisplayListSet& aLists) MOZ_OVERRIDE;
34
35 NS_IMETHOD
36 InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE;
37
38 NS_IMETHOD
39 TransmitAutomaticData() MOZ_OVERRIDE;
40
41 virtual nsresult
42 SetInitialChildList(ChildListID aListID,
43 nsFrameList& aChildList) MOZ_OVERRIDE;
44
45 virtual nsresult
46 Reflow(nsPresContext* aPresContext,
47 nsHTMLReflowMetrics& aDesiredSize,
48 const nsHTMLReflowState& aReflowState,
49 nsReflowStatus& aStatus) MOZ_OVERRIDE;
50
51 virtual void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;
52
53 virtual void
54 GetIntrinsicWidthMetrics(nsRenderingContext* aRenderingContext,
55 nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;
56
57 virtual nsresult
58 AttributeChanged(int32_t aNameSpaceID,
59 nsIAtom* aAttribute,
60 int32_t aModType) MOZ_OVERRIDE;
61
62 // This method is called by the parent frame to ask <mo>
63 // to stretch itself.
64 NS_IMETHOD
65 Stretch(nsRenderingContext& aRenderingContext,
66 nsStretchDirection aStretchDirection,
67 nsBoundingMetrics& aContainerSize,
68 nsHTMLReflowMetrics& aDesiredStretchSize) MOZ_OVERRIDE;
69
70 virtual nsresult
71 ChildListChanged(int32_t aModType) MOZ_OVERRIDE
72 {
73 ProcessTextData();
74 return nsMathMLContainerFrame::ChildListChanged(aModType);
75 }
76
77 protected:
78 nsMathMLmoFrame(nsStyleContext* aContext) : nsMathMLTokenFrame(aContext) {}
79 virtual ~nsMathMLmoFrame();
80
81 nsMathMLChar mMathMLChar; // Here is the MathMLChar that will deal with the operator.
82 nsOperatorFlags mFlags;
83 float mMinSize;
84 float mMaxSize;
85
86 bool UseMathMLChar();
87
88 // overload the base method so that we can setup our nsMathMLChar
89 void ProcessTextData();
90
91 // helper to get our 'form' and lookup in the Operator Dictionary to fetch
92 // our default data that may come from there, and to complete the setup
93 // using attributes that we may have
94 void
95 ProcessOperatorData();
96
97 // helper to double check thar our char should be rendered as a selected char
98 bool
99 IsFrameInSelection(nsIFrame* aFrame);
100 };
101
102 #endif /* nsMathMLmoFrame_h___ */

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