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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
**************************************************************************/
#include "TokenUnderCursor.h"
#include <Token.h>
#include <QTextCursor>
#include <QTextBlock>
#include <climits>
using namespace CPlusPlus;
TokenUnderCursor::TokenUnderCursor()
{ }
TokenUnderCursor::~TokenUnderCursor()
{ }
SimpleToken TokenUnderCursor::operator()(const QTextCursor &cursor, QTextBlock *b)
{
SimpleLexer tokenize;
tokenize.setObjCEnabled(true);
tokenize.setSkipComments(false);
QTextBlock block = cursor.block();
int column = cursor.columnNumber();
_tokens = tokenize(block.text(), previousBlockState(block));
for (int index = _tokens.size() - 1; index != -1; --index) {
const SimpleToken &tk = _tokens.at(index);
if (tk.position() < column) {
if (b)
*b = block;
return tk;
}
}
return SimpleToken();
}
int TokenUnderCursor::previousBlockState(const QTextBlock &block) const
{
const QTextBlock prevBlock = block.previous();
if (prevBlock.isValid()) {
int state = prevBlock.userState();
if (state != -1)
return state;
}
return 0;
}
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