highlighter.cpp
author insilmaril
Wed, 25 Apr 2007 16:02:54 +0000
changeset 473 8b9cfc26638c
parent 471 9c26d66d4c53
child 482 24c7902a3e14
permissions -rw-r--r--
started doxygen documentation
insilmaril@435
     1
/****************************************************************************
insilmaril@435
     2
**
insilmaril@435
     3
** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
insilmaril@435
     4
**
insilmaril@435
     5
** This file is part of the example classes of the Qt Toolkit.
insilmaril@435
     6
**
insilmaril@435
     7
** This file may be used under the terms of the GNU General Public
insilmaril@435
     8
** License version 2.0 as published by the Free Software Foundation
insilmaril@435
     9
** and appearing in the file LICENSE.GPL included in the packaging of
insilmaril@435
    10
** this file.  Please review the following information to ensure GNU
insilmaril@435
    11
** General Public Licensing requirements will be met:
insilmaril@435
    12
** http://www.trolltech.com/products/qt/opensource.html
insilmaril@435
    13
**
insilmaril@435
    14
** If you are unsure which license is appropriate for your use, please
insilmaril@435
    15
** review the following information:
insilmaril@435
    16
** http://www.trolltech.com/products/qt/licensing.html or contact the
insilmaril@435
    17
** sales department at sales@trolltech.com.
insilmaril@435
    18
**
insilmaril@435
    19
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
insilmaril@435
    20
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
insilmaril@435
    21
**
insilmaril@435
    22
****************************************************************************/
insilmaril@435
    23
insilmaril@435
    24
// highlighting rules have been adapted by Uwe Drechsel to match vym syntax
insilmaril@435
    25
insilmaril@435
    26
insilmaril@435
    27
#include <QtGui>
insilmaril@435
    28
insilmaril@435
    29
#include "highlighter.h"
insilmaril@435
    30
insilmaril@435
    31
Highlighter::Highlighter(QTextDocument *parent)
insilmaril@435
    32
    : QSyntaxHighlighter(parent)
insilmaril@435
    33
{
insilmaril@435
    34
    HighlightingRule rule;
insilmaril@435
    35
insilmaril@435
    36
    keywordFormat.setForeground(Qt::darkBlue);
insilmaril@435
    37
    keywordFormat.setFontWeight(QFont::Bold);
insilmaril@435
    38
    QStringList keywordPatterns;
insilmaril@447
    39
    keywordPatterns << "\\baddBranch\\b" 
insilmaril@447
    40
					<< "\\baddBranchBefore\\b" 
insilmaril@447
    41
                    << "\\baddMapInsert\\b" 
insilmaril@447
    42
					<< "\\baddMapReplace\\b"
insilmaril@447
    43
                    << "\\bcolorBranch\\b" 
insilmaril@447
    44
					<< "\\bcolorSubtree\\b"
insilmaril@447
    45
                    << "\\bcut\\b" 
insilmaril@447
    46
					<< "\\bdelete\\b" 
insilmaril@447
    47
					<< "\\bdeletepKeepChilds\\b" 
insilmaril@447
    48
					<< "\\bdeletepChilds\\b"
insilmaril@447
    49
					<< "\\blinkTo\\b" 
insilmaril@447
    50
					<< "\\bloadImage\\b"
insilmaril@447
    51
					<< "\\bmoveBranchUp\\b" 
insilmaril@447
    52
					<< "\\bmoveBranchDown\\b"
insilmaril@447
    53
					<< "\\bmove\\b" 
insilmaril@447
    54
					<< "\\bmoveRel\\b"
insilmaril@435
    55
					<< "\\bpaste\\b" 
insilmaril@435
    56
					<< "\\bsaveImage\\b" 
insilmaril@435
    57
					<< "\\bscroll\\b" 
insilmaril@447
    58
					<< "\\bselect\\b" 
insilmaril@447
    59
					<< "\\bselectLastBranch\\b" 
insilmaril@447
    60
					<< "\\bselectLastImage\\b"
insilmaril@435
    61
					<< "\\bsetMapAuthor\\b" 
insilmaril@435
    62
					<< "\\bsetMapComment\\b" 
insilmaril@435
    63
					<< "\\bsetMapBackgroundColor\\b" 
insilmaril@435
    64
					<< "\\bsetMapDefLinkColor\\b" 
insilmaril@435
    65
					<< "\\bsetMapDefLinkStyle\\b" 
insilmaril@435
    66
					<< "\\bsetHeading\\b" 
insilmaril@435
    67
					<< "\\bsetHideExport\\b" 
insilmaril@435
    68
					<< "\\bsetIncludeImagesHorizontally\\b" 
insilmaril@435
    69
					<< "\\bsetIncludeImagesVertically\\b" 
insilmaril@435
    70
					<< "\\bsetURL\\b" 
insilmaril@435
    71
					<< "\\bsetVymLink\\b" 
insilmaril@435
    72
					<< "\\bsetFlag\\b" 
insilmaril@447
    73
					<< "\\btoggleFlag\\b" 
insilmaril@435
    74
					<< "\\bunscroll\\b" 
insilmaril@471
    75
					<< "\\bunscrollChilds\\b" 
insilmaril@435
    76
					<< "\\bunsetFlag\\b" 
insilmaril@435
    77
					;
insilmaril@435
    78
    foreach (QString pattern, keywordPatterns) {
insilmaril@435
    79
        rule.pattern = QRegExp(pattern);
insilmaril@435
    80
        rule.format = keywordFormat;
insilmaril@435
    81
        highlightingRules.append(rule);
insilmaril@435
    82
    }
insilmaril@435
    83
insilmaril@435
    84
	// QT keywords
insilmaril@435
    85
	/*
insilmaril@435
    86
    classFormat.setFontWeight(QFont::Bold);
insilmaril@435
    87
    classFormat.setForeground(Qt::darkMagenta);
insilmaril@435
    88
    rule.pattern = QRegExp("\\bQ[A-Za-z]+\\b");
insilmaril@435
    89
    rule.format = classFormat;
insilmaril@435
    90
    highlightingRules.append(rule);
insilmaril@435
    91
	*/
insilmaril@435
    92
insilmaril@435
    93
	// Single line comments
insilmaril@435
    94
    singleLineCommentFormat.setForeground(Qt::red);
insilmaril@435
    95
    rule.pattern = QRegExp("#[^\n]*");
insilmaril@435
    96
    rule.format = singleLineCommentFormat;
insilmaril@435
    97
    highlightingRules.append(rule);
insilmaril@435
    98
insilmaril@447
    99
	// multiline comments
insilmaril@435
   100
    multiLineCommentFormat.setForeground(Qt::red);
insilmaril@435
   101
    commentStartExpression = QRegExp("/\\*");
insilmaril@435
   102
    commentEndExpression = QRegExp("\\*/");
insilmaril@435
   103
insilmaril@435
   104
	// Quotations
insilmaril@435
   105
    quotationFormat.setForeground(Qt::darkGreen);
insilmaril@435
   106
    rule.pattern = QRegExp("\".*\"");
insilmaril@435
   107
    rule.format = quotationFormat;
insilmaril@435
   108
    highlightingRules.append(rule);
insilmaril@435
   109
insilmaril@435
   110
    QStringList valuePatterns;
insilmaril@435
   111
    valuePatterns << "\\btrue\\b" << "\\bfalse\\b";
insilmaril@435
   112
    foreach (QString pattern, valuePatterns) {
insilmaril@435
   113
        rule.pattern = QRegExp(pattern);
insilmaril@435
   114
        rule.format = quotationFormat;
insilmaril@435
   115
        highlightingRules.append(rule);
insilmaril@435
   116
    }
insilmaril@435
   117
insilmaril@435
   118
insilmaril@435
   119
insilmaril@435
   120
	// Funtions
insilmaril@435
   121
	/*
insilmaril@435
   122
    functionFormat.setFontItalic(true);
insilmaril@435
   123
    functionFormat.setForeground(Qt::blue);
insilmaril@435
   124
    rule.pattern = QRegExp("\\b[A-Za-z0-9_]+(?=\\()");
insilmaril@435
   125
    rule.format = functionFormat;
insilmaril@435
   126
    highlightingRules.append(rule);
insilmaril@435
   127
	*/
insilmaril@435
   128
insilmaril@435
   129
}
insilmaril@435
   130
insilmaril@435
   131
void Highlighter::highlightBlock(const QString &text)
insilmaril@435
   132
{
insilmaril@435
   133
    foreach (HighlightingRule rule, highlightingRules) {
insilmaril@435
   134
        QRegExp expression(rule.pattern);
insilmaril@435
   135
        int index = text.indexOf(expression);
insilmaril@435
   136
        while (index >= 0) {
insilmaril@435
   137
            int length = expression.matchedLength();
insilmaril@435
   138
            setFormat(index, length, rule.format);
insilmaril@435
   139
            index = text.indexOf(expression, index + length);
insilmaril@435
   140
        }
insilmaril@435
   141
    }
insilmaril@435
   142
    setCurrentBlockState(0);
insilmaril@435
   143
insilmaril@435
   144
    int startIndex = 0;
insilmaril@435
   145
    if (previousBlockState() != 1)
insilmaril@435
   146
        startIndex = text.indexOf(commentStartExpression);
insilmaril@435
   147
insilmaril@435
   148
    while (startIndex >= 0) {
insilmaril@435
   149
        int endIndex = text.indexOf(commentEndExpression, startIndex);
insilmaril@435
   150
        int commentLength;
insilmaril@435
   151
        if (endIndex == -1) {
insilmaril@435
   152
            setCurrentBlockState(1);
insilmaril@435
   153
            commentLength = text.length() - startIndex;
insilmaril@435
   154
        } else {
insilmaril@435
   155
            commentLength = endIndex - startIndex
insilmaril@435
   156
                            + commentEndExpression.matchedLength();
insilmaril@435
   157
        }
insilmaril@435
   158
        setFormat(startIndex, commentLength, multiLineCommentFormat);
insilmaril@435
   159
        startIndex = text.indexOf(commentStartExpression,
insilmaril@435
   160
                                                startIndex + commentLength);
insilmaril@435
   161
    }
insilmaril@435
   162
}