PlotMagnifier.h

Go to the documentation of this file.

/******************************************************************************
 * Copyright (C) 2015 by Ralf Kaestner                                        *
 * ralf.kaestner@gmail.com                                                    *
 *                                                                            *
 * This program is free software; you can redistribute it and/or modify       *
 * it under the terms of the Lesser GNU General Public License as published by*
 * the Free Software Foundation; either version 3 of the License, 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               *
 * Lesser GNU General Public License for more details.                        *
 *                                                                            *
 * You should have received a copy of the Lesser GNU General Public License   *
 * along with this program. If not, see <http://www.gnu.org/licenses/>.       *
 ******************************************************************************/

#ifndef RQT_MULTIPLOT_PLOT_MAGNIFIER_H
#define RQT_MULTIPLOT_PLOT_MAGNIFIER_H

#include <QPoint>

#include <qwt/qwt_plot_magnifier.h>

class QwtPlotCanvas;

namespace rqt_multiplot {
  class PlotMagnifier :
    public QwtPlotMagnifier {
  Q_OBJECT
  public:
    PlotMagnifier(QwtPlotCanvas* canvas);
    ~PlotMagnifier();

  protected:
    void rescale(double xFactor, double yFactor);

    void widgetMousePressEvent(QMouseEvent* event);
    void widgetMouseMoveEvent(QMouseEvent* event);
    void widgetMouseReleaseEvent(QMouseEvent* event);

  private:
    bool magnifying_;

    QPoint position_;
  };
};

#endif