1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtGui module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    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