1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2015 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtGui module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 2.1 or version 3 as published by the Free 20 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and 21 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the 22 ** following information to ensure the GNU Lesser General Public License 23 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and 24 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 25 ** 26 ** As a special exception, The Qt Company gives you certain additional 27 ** rights. These rights are described in The Qt Company LGPL Exception 28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. 29 ** 30 ** GNU General Public License Usage 31 ** Alternatively, this file may be used under the terms of the GNU 32 ** General Public License version 3.0 as published by the Free Software 33 ** Foundation and appearing in the file LICENSE.GPL included in the 34 ** packaging of this file. Please review the following information to 35 ** ensure the GNU General Public License version 3.0 requirements will be 36 ** met: http://www.gnu.org/copyleft/gpl.html. 37 ** 38 ** $QT_END_LICENSE$ 39 ** 40 ****************************************************************************/ 41 42 #ifndef QSYNTAXHIGHLIGHTER_H 43 #define QSYNTAXHIGHLIGHTER_H 44 45 #include <QtCore/qglobal.h> 46 47 #ifndef QT_NO_SYNTAXHIGHLIGHTER 48 49 #include <QtCore/qobject.h> 50 #include <QtGui/qtextobject.h> 51 52 QT_BEGIN_HEADER 53 54 QT_BEGIN_NAMESPACE 55 56 QT_MODULE(Gui) 57 58 class QTextDocument; 59 class QSyntaxHighlighterPrivate; 60 class QTextCharFormat; 61 class QFont; 62 class QColor; 63 class QTextBlockUserData; 64 class QTextEdit; 65 66 class Q_GUI_EXPORT QSyntaxHighlighter : public QObject 67 { 68 Q_OBJECT 69 Q_DECLARE_PRIVATE(QSyntaxHighlighter) 70 public: 71 QSyntaxHighlighter(QObject *parent); 72 QSyntaxHighlighter(QTextDocument *parent); 73 QSyntaxHighlighter(QTextEdit *parent); 74 virtual ~QSyntaxHighlighter(); 75 76 void setDocument(QTextDocument *doc); 77 QTextDocument *document() const; 78 79 public Q_SLOTS: 80 void rehighlight(); 81 void rehighlightBlock(const QTextBlock &block); 82 83 protected: 84 virtual void highlightBlock(const QString &text) = 0; 85 86 void setFormat(int start, int count, const QTextCharFormat &format); 87 void setFormat(int start, int count, const QColor &color); 88 void setFormat(int start, int count, const QFont &font); 89 QTextCharFormat format(int pos) const; 90 91 int previousBlockState() const; 92 int currentBlockState() const; 93 void setCurrentBlockState(int newState); 94 95 void setCurrentBlockUserData(QTextBlockUserData *data); 96 QTextBlockUserData *currentBlockUserData() const; 97 98 QTextBlock currentBlock() const; 99 100 private: 101 Q_DISABLE_COPY(QSyntaxHighlighter) 102 Q_PRIVATE_SLOT(d_func(), void _q_reformatBlocks(int from, int charsRemoved, int charsAdded)) 103 Q_PRIVATE_SLOT(d_func(), void _q_delayedRehighlight()) 104 }; 105 106 QT_END_NAMESPACE 107 108 QT_END_HEADER 109 110 #endif // QT_NO_SYNTAXHIGHLIGHTER 111 112 #endif // QSYNTAXHIGHLIGHTER_H 113