pvplotwidget.h

/*
    SPDX-FileCopyrightText: 2005 Jason Harris <kstars@30doradus.org>
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
 
#pragma once
 
#include "kplotwidget.h"
 
class PlanetViewer;
 
class PVPlotWidget : public KPlotWidget
{
    Q_OBJECT
  public:
    explicit PVPlotWidget(QWidget *parent = nullptr);
 
  public slots:
    void slotZoomIn();
    void slotZoomOut();
 
  signals:
    void doubleClicked(double, double);
 
  protected:
    void keyPressEvent(QKeyEvent *e) override;
    void mousePressEvent(QMouseEvent *e) override;
    void mouseMoveEvent(QMouseEvent *e) override;
    void mouseReleaseEvent(QMouseEvent *) override;
    void mouseDoubleClickEvent(QMouseEvent *e) override;
    void wheelEvent(QWheelEvent *e) override;
 
  private:
    void updateFactor(const int modifier);
 
    bool mouseButtonDown { false };
    int oldx { 0 };
    int oldy { 0 };
    double factor { 2 };
    PlanetViewer *pv { nullptr };
};