documentcache.h

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/*
    Copyright © 2015-2019 by The qTox Project Contributors
 
    This file is part of qTox, a Qt-based graphical interface for Tox.
 
    qTox is libre software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    qTox is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with qTox.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#pragma once
 
#include <QStack>
 
class QTextDocument;
 
class DocumentCache
{
public:
    static DocumentCache& getInstance();
 
    QTextDocument* pop();
    void push(QTextDocument* doc);
 
private:
    DocumentCache() = default;
    ~DocumentCache();
    DocumentCache(DocumentCache&) = delete;
    DocumentCache& operator=(const DocumentCache&) = delete;
 
private:
    QStack<QTextDocument*> documents;
};