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/*
* Copyright (C) 2008, Pino Toscano <[email protected]>
* Copyright (C) 2018, Albert Astals Cid <[email protected]>
*
* This program is free 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 2, or (at your option)
* any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef DOCUMENTOBSERVER_H
#define DOCUMENTOBSERVER_H
class PdfViewer;
namespace Poppler {
class Document;
}
class DocumentObserver
{
friend class PdfViewer;
public:
virtual ~DocumentObserver();
DocumentObserver(const DocumentObserver &) = delete;
DocumentObserver &operator=(const DocumentObserver &) = delete;
virtual void documentLoaded() = 0;
virtual void documentClosed() = 0;
virtual void pageChanged(int page) = 0;
protected:
DocumentObserver();
Poppler::Document *document() const;
void setPage(int page);
int page() const;
void reloadPage();
private:
PdfViewer *m_viewer;
};
#endif
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