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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef AUTOCOMPLETER_H
#define AUTOCOMPLETER_H
#include "texteditor_global.h"
#include <QChar>
#include <QString>
QT_BEGIN_NAMESPACE
class QTextCursor;
QT_END_NAMESPACE
namespace TextEditor {
class TabSettings;
class TEXTEDITOR_EXPORT AutoCompleter
{
public:
AutoCompleter();
virtual ~AutoCompleter();
void setAutoParenthesesEnabled(bool b);
bool isAutoParenthesesEnabled() const;
void setSurroundWithEnabled(bool b);
bool isSurroundWithEnabled() const;
// Returns the text to complete at the cursor position, or an empty string
virtual QString autoComplete(QTextCursor &cursor, const QString &text) const;
// Handles backspace. When returning true, backspace processing is stopped
virtual bool autoBackspace(QTextCursor &cursor);
// Hook to insert special characters on enter. Returns the number of extra blocks inserted.
virtual int paragraphSeparatorAboutToBeInserted(QTextCursor &cursor,
const TabSettings &tabSettings);
virtual bool contextAllowsAutoParentheses(const QTextCursor &cursor,
const QString &textToInsert = QString()) const;
virtual bool contextAllowsElectricCharacters(const QTextCursor &cursor) const;
// Returns true if the cursor is inside a comment.
virtual bool isInComment(const QTextCursor &cursor) const;
virtual QString insertMatchingBrace(const QTextCursor &cursor, const
QString &text,
QChar la,
int *skippedChars) const;
// Returns the text that needs to be inserted
virtual QString insertParagraphSeparator(const QTextCursor &cursor) const;
protected:
static void countBracket(QChar open, QChar close, QChar c, int *errors, int *stillopen);
static void countBrackets(QTextCursor cursor, int from, int end, QChar open, QChar close,
int *errors, int *stillopen);
private:
mutable bool m_allowSkippingOfBlockEnd;
bool m_surroundWithEnabled;
bool m_autoParenthesesEnabled;
};
} // TextEditor
#endif // AUTOCOMPLETER_H
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