okular/ui/magnifierview.h
2018-09-01 11:25:57 +03:00

60 lines
1.9 KiB
C++

/*
* 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 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef MAGNIFIERVIEW_H
#define MAGNIFIERVIEW_H
#include <QWidget>
#include "core/observer.h"
#include "core/page.h"
class MagnifierView : public QWidget, public Okular::DocumentObserver
{
Q_OBJECT
public:
explicit MagnifierView( Okular::Document *document, QWidget *parent = nullptr );
~MagnifierView();
void notifySetup( const QVector< Okular::Page * > & pages, int setupFlags ) override;
void notifyPageChanged( int page, int flags ) override;
void notifyCurrentPageChanged( int previous, int current ) override;
bool canUnloadPixmap( int page ) const override;
void updateView( const Okular::NormalizedPoint &p, const Okular::Page * page );
void move( int x, int y );
protected:
void paintEvent( QPaintEvent *e ) override;
private:
Okular::NormalizedRect normalizedView() const;
void requestPixmap();
void drawTicks( QPainter *p );
private:
Okular::Document *m_document;
Okular::NormalizedPoint m_viewpoint;
const Okular::Page *m_page;
int m_current;
QVector<Okular::Page *> m_pages;
};
#endif // MAGNIFIERVIEW_H