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/* Copyright © 2017 Hasan Yavuz Özderya This file is part of serialplot. serialplot 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 3 of the License, or (at your option) any later version. serialplot 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 serialplot. If not, see <http://www.gnu.org/licenses/>. */ #ifndef ZOOMER_H #define ZOOMER_H #include <scrollzoomer.h> class Zoomer : public ScrollZoomer { Q_OBJECT public: Zoomer(QWidget *, bool doReplot=true); void zoom(int up); void zoom( const QRectF & ); signals: void unzoomed(); protected: /// Re-implemented to display selection size in the tracker text. QwtText trackerTextF(const QPointF &pos) const; /// Re-implemented for alpha background void drawRubberBand(QPainter* painter) const; /// Re-implemented for alpha background (masking is basically disabled) QRegion rubberBandMask() const; /// Overloaded for panning void widgetMousePressEvent(QMouseEvent* mouseEvent); /// Overloaded for panning void widgetMouseReleaseEvent(QMouseEvent* mouseEvent); /// Overloaded for panning void widgetMouseMoveEvent(QMouseEvent* mouseEvent); private: bool is_panning; QPointF pan_point; }; #endif // ZOOMER_H