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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.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 info@qt.nokia.com.
**
**************************************************************************/
#include "circularclipboard.h"
using namespace TextEditor::Internal;
static const int kMaxSize = 10;
CircularClipboard::CircularClipboard()
: m_current(-1)
{}
CircularClipboard::~CircularClipboard()
{
}
CircularClipboard *CircularClipboard::instance()
{
static CircularClipboard clipboard;
return &clipboard;
}
void CircularClipboard::collect(const QMimeData *mimeData)
{
collect(QSharedPointer<const QMimeData>(mimeData));
}
void CircularClipboard::collect(const QSharedPointer<const QMimeData> &mimeData)
{
//Avoid duplicates
const QString text = mimeData->text();
for (QList< QSharedPointer<const QMimeData> >::iterator i = m_items.begin(); i != m_items.end(); ++i) {
if (mimeData == *i || text == (*i)->text()) {
m_items.erase(i);
break;
}
}
if (m_items.size() >= kMaxSize)
m_items.removeLast();
m_items.prepend(mimeData);
}
QSharedPointer<const QMimeData> CircularClipboard::next() const
{
if (m_items.isEmpty())
return QSharedPointer<const QMimeData>();
if (m_current == m_items.length() - 1)
m_current = 0;
else
++m_current;
return m_items.at(m_current);
}
void CircularClipboard::toLastCollect()
{
m_current = -1;
}
int CircularClipboard::size() const
{
return m_items.size();
}
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