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/*
* MusicNotationHighligher.cpp
*
* Created by Christophe Daudin on 12/05/09.
* Copyright 2009 Grame. All rights reserved.
*
* GNU Lesser General Public License Usage
* Alternatively, this file may be used under the terms of the GNU Lesser
* General Public License version 2.1 as published by the Free Software
* Foundation and appearing in the file LICENSE.LGPL included in the
* packaging of this file. Please review the following information to
* ensure the GNU Lesser General Public License version 2.1 requirements
* will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
*
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include "MusicNotationHighlighter.h"
//-------------------------------------------------------------------------
void MusicNotationHighlighter::appendLineRule(const QStringList& patterns,
const QTextCharFormat& format,
bool setMinimal=false)
{
mLastFormat = format;
foreach (QString pattern, patterns)
{
QRegExp rx=QRegExp(pattern);
rx.setMinimal(setMinimal);
mLineRule.pattern = rx;
mLineRule.format = format;
mHighlightingLineRules.append(mLineRule);
}
}
//-------------------------------------------------------------------------
void MusicNotationHighlighter::appendMultilineRule(const QString& startPattern,
const QString& endPattern, const QTextCharFormat& format,
bool)
{
mLastFormat = format;
QRegExp srx=QRegExp(startPattern);
QRegExp erx=QRegExp(endPattern);
mMultiLineRule.startPattern = srx;
mMultiLineRule.endPattern=erx;
mMultiLineRule.format = format;
mHighlightingMultilineRules.append(mMultiLineRule);
}
//-------------------------------------------------------------------------
MusicNotationHighlighter::MusicNotationHighlighter(QTextDocument *parent)
:QSyntaxHighlighter(parent)
{}
//-------------------------------------------------------------------------
MusicNotationHighlighter::~MusicNotationHighlighter()
{}
//-------------------------------------------------------------------------
void MusicNotationHighlighter::highlightLine(const QString& text,bool )
{
foreach (HighlightingLineRule rule, mHighlightingLineRules)
{
QRegExp expression(rule.pattern);
int index = text.indexOf(expression);
while (index >= 0)
{
int length = expression.matchedLength();
setFormat(index, length, rule.format);
index = text.indexOf(expression, index + length);
}
}
}
//-------------------------------------------------------------------------
bool MusicNotationHighlighter::highlightMultiline(const QString& text )
{
bool result = false;
for(int i=0;i<mHighlightingMultilineRules.size();i++)
{
setCurrentBlockState(OUTOFF_BLOCK);
int startIndex = 0;
if (previousBlockState() != IN_BLOCK)
{
startIndex = text.indexOf(mHighlightingMultilineRules[i].startPattern);
}
else
{
result = true;
}
while (startIndex >= 0)
{
result = true;
int endIndex = text.indexOf(mHighlightingMultilineRules[i].endPattern, startIndex);
int commentLength;
if (endIndex == -1)
{
setCurrentBlockState(IN_BLOCK);
commentLength = text.length() - startIndex;
} else
{
commentLength = endIndex - startIndex
+ mHighlightingMultilineRules[i].endPattern.matchedLength();
}
setFormat( startIndex, commentLength, mHighlightingMultilineRules[i].format );
startIndex = text.indexOf(mHighlightingMultilineRules[i].startPattern, startIndex + commentLength);
}
}
return result;
}
#include <QtDebug>
//-------------------------------------------------------------------------
void MusicNotationHighlighter::highlightBlock ( const QString & text )
{
highlightLine(text,false);
highlightMultiline(text);
}
//-------------------------------------------------------------------------
QTextCharFormat MusicNotationHighlighter::buildTextCharFormat( const QColor& foreground , const QColor& background , QFont::Weight fontWeight )
{
QTextCharFormat result;
result.setForeground( foreground );
result.setBackground( background );
result.setFontWeight( fontWeight );
return result;
}
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