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/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
**
** Non-Open Source Usage
**
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
#include "qtscripthighlighter.h"
#include <utils/qtcassert.h>
namespace QtScriptEditor {
namespace Internal {
QtScriptHighlighter::QtScriptHighlighter(QTextDocument *parent) :
SharedTools::QScriptHighlighter(parent)
{
m_currentBlockParentheses.reserve(20);
m_braceDepth = 0;
}
int QtScriptHighlighter::onBlockStart()
{
m_currentBlockParentheses.clear();
m_braceDepth = 0;
int state = 0;
int previousState = previousBlockState();
if (previousState != -1) {
state = previousState & 0xff;
m_braceDepth = previousState >> 8;
}
return state;
}
void QtScriptHighlighter::onOpeningParenthesis(QChar parenthesis, int pos)
{
if (parenthesis == QLatin1Char('{'))
++m_braceDepth;
m_currentBlockParentheses.push_back(Parenthesis(Parenthesis::Opened, parenthesis, pos));
}
void QtScriptHighlighter::onClosingParenthesis(QChar parenthesis, int pos)
{
if (parenthesis == QLatin1Char('}'))
--m_braceDepth;
m_currentBlockParentheses.push_back(Parenthesis(Parenthesis::Closed, parenthesis, pos));
}
void QtScriptHighlighter::onBlockEnd(int state, int firstNonSpace)
{
typedef TextEditor::TextBlockUserData TextEditorBlockData;
setCurrentBlockState((m_braceDepth << 8) | state);
// Set block data parentheses. Force creation of block data unless empty
TextEditorBlockData *blockData = 0;
if (QTextBlockUserData *userData = currentBlockUserData())
blockData = static_cast<TextEditorBlockData *>(userData);
if (!blockData && !m_currentBlockParentheses.empty()) {
blockData = new TextEditorBlockData;
setCurrentBlockUserData(blockData);
}
if (blockData) {
blockData->setParentheses(m_currentBlockParentheses);
blockData->setClosingCollapseMode(TextEditor::TextBlockUserData::NoClosingCollapse);
blockData->setCollapseMode(TextEditor::TextBlockUserData::NoCollapse);
}
if (!m_currentBlockParentheses.isEmpty()) {
QTC_ASSERT(blockData, return);
int collapse = Parenthesis::collapseAtPos(m_currentBlockParentheses);
if (collapse >= 0) {
if (collapse == firstNonSpace)
blockData->setCollapseMode(TextEditor::TextBlockUserData::CollapseThis);
else
blockData->setCollapseMode(TextEditor::TextBlockUserData::CollapseAfter);
}
if (Parenthesis::hasClosingCollapse(m_currentBlockParentheses))
blockData->setClosingCollapseMode(TextEditor::TextBlockUserData::NoClosingCollapse);
}
}
} // namespace Internal
} // namespace QtScriptEditor
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