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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "circularclipboard.h"
using namespace TextEditor::Internal;
static const int kMaxSize = 10;
CircularClipboard::CircularClipboard() = default;
CircularClipboard::~CircularClipboard() = default;
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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