1 | /************************************************************************************* |
2 | * Copyright (C) 2007 by Aleix Pol <aleixpol@kde.org> * |
3 | * * |
4 | * This program is free software; you can redistribute it and/or * |
5 | * modify it under the terms of the GNU General Public License * |
6 | * as published by the Free Software Foundation; either version 2 * |
7 | * of the License, or (at your option) any later version. * |
8 | * * |
9 | * This program is distributed in the hope that it will be useful, * |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
12 | * GNU General Public License for more details. * |
13 | * * |
14 | * You should have received a copy of the GNU General Public License * |
15 | * along with this program; if not, write to the Free Software * |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA * |
17 | *************************************************************************************/ |
18 | |
19 | #ifndef ALGEBRAHIGHLIGHTER_H |
20 | #define ALGEBRAHIGHLIGHTER_H |
21 | |
22 | #include <QSyntaxHighlighter> |
23 | #include "analitzaguiexport.h" |
24 | |
25 | /** |
26 | * The AlgebraHighlighter class is used to highlight the ExpressionEdit text. |
27 | * @author <aleixpol@kde.org> |
28 | */ |
29 | |
30 | namespace Analitza { class Analyzer; } |
31 | |
32 | class ANALITZAGUI_EXPORT AlgebraHighlighter : public QSyntaxHighlighter |
33 | { |
34 | public: |
35 | /** Defines the format status that could be used. */ |
36 | typedef enum { |
37 | Expression, /**< String expression format. */ |
38 | MathML, /**< MathML format. */ |
39 | Autodetect /**< Try to guess which format is being used. */ |
40 | } Mode; |
41 | |
42 | /** Constructor. Creates an AlgebraHighlighter from a QTextDocument @p doc. */ |
43 | explicit AlgebraHighlighter(QTextDocument *doc, const Analitza::Analyzer* na=0); |
44 | //int highlightParagraph(const QString &text, int endStateOfLastPara); |
45 | |
46 | /** Returns the currently highlight mode. */ |
47 | Mode mode() { return m_mode; } |
48 | |
49 | /** Sets the highlight mode. */ |
50 | void setMode(const Mode& newMode){ m_mode=newMode; rehighlight(); } |
51 | |
52 | /** |
53 | * Returns whether something wrong has been found. It is an uncomplete way |
54 | * to know if it is correct because doesn't do any recursive check, but could be useful. |
55 | * @returns whether it is a lexically correct expression. |
56 | */ |
57 | bool isCorrect() const { return m_correct; } |
58 | |
59 | /** Sets the cursor position. */ |
60 | void setPos(uint p) { m_pos=p; } |
61 | |
62 | /** Sets the corresponding Analitza class. */ |
63 | void setAnalitza(const Analitza::Analyzer* na) { a = na; } |
64 | |
65 | ///@returns the name of the function that's being edited, if any |
66 | QString editingName() const; |
67 | |
68 | ///@returns the number of the parameter that's being edited |
69 | int editingParameter() const; |
70 | bool editingBounds() const; |
71 | private: |
72 | void highlightBlock(const QString &text); |
73 | |
74 | enum MMLtokEnum { //For mathml highlighting |
75 | gt, |
76 | lt, |
77 | tag, |
78 | value |
79 | }; |
80 | |
81 | bool m_correct; |
82 | int antnum; |
83 | Mode m_mode; |
84 | uint m_pos; |
85 | int m_editingParameter; |
86 | QString m_editingName; |
87 | bool m_editingBounds; |
88 | QString m_aName; |
89 | |
90 | QTextCharFormat bold; |
91 | const Analitza::Analyzer* a; |
92 | }; |
93 | |
94 | #endif |
95 | |