K:/git-itom/sources/itom/itomWidgets/doubleSlider.h

/* ********************************************************************
    itom software
    URL: http://www.uni-stuttgart.de/ito
    Copyright (C) 2016, Institut fuer Technische Optik (ITO),
    Universitaet Stuttgart, Germany

    This file is part of itom and its software development toolkit (SDK).

    itom is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public Licence as published by
    the Free Software Foundation; either version 2 of the Licence, or (at
    your option) any later version.
   
    In addition, as a special exception, the Institut fuer Technische
    Optik (ITO) gives you certain additional rights.
    These rights are described in the ITO LGPL Exception version 1.0,
    which can be found in the file LGPL_EXCEPTION.txt in this package.

    itom 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 Library
    General Public Licence for more details.

    You should have received a copy of the GNU Library General Public License
    along with itom. If not, see <http://www.gnu.org/licenses/>.

    This file is a port and modified version of the 
    Common framework (http://www.commontk.org)
*********************************************************************** */

#ifndef DOUBLESLIDER_H
#define DOUBLESLIDER_H

// Qt includes
#include <QSlider>
#include <QWidget>

#include "commonWidgets.h"

class DoubleSliderPrivate;
class ValueProxy;

class ITOMWIDGETS_EXPORT DoubleSlider : public QWidget
{
  Q_OBJECT
  Q_PROPERTY(double value READ value WRITE setValue NOTIFY valueChanged USER true)
  Q_PROPERTY(double sliderPosition READ sliderPosition WRITE setSliderPosition)
  Q_PROPERTY(double singleStep READ singleStep WRITE setSingleStep)
  Q_PROPERTY(double pageStep READ pageStep WRITE setPageStep)
  Q_PROPERTY(double minimum READ minimum WRITE setMinimum)
  Q_PROPERTY(double maximum READ maximum WRITE setMaximum)
  Q_PROPERTY(double tickInterval READ tickInterval WRITE setTickInterval)
  Q_PROPERTY(QSlider::TickPosition tickPosition READ tickPosition WRITE setTickPosition)
  Q_PROPERTY(bool tracking READ hasTracking WRITE setTracking)
  Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)
  Q_PROPERTY(QString handleToolTip READ handleToolTip WRITE setHandleToolTip)
  Q_PROPERTY(bool invertedAppearance READ invertedAppearance WRITE setInvertedAppearance)
  Q_PROPERTY(bool invertedControls READ invertedControls WRITE setInvertedControls)

public:
  typedef QWidget Superclass;

  explicit DoubleSlider(QWidget* parent = 0);
  explicit DoubleSlider(Qt::Orientation orient, QWidget* parent = 0);
  virtual ~DoubleSlider();

  void setMinimum(double min);
  double minimum()const;

  void setMaximum(double max);
  double maximum()const;

  void setRange(double min, double max);

  double value()const;

  void setSingleStep(double step);
  double singleStep()const;

  bool isValidStep(double step)const;

  void setPageStep(double step);
  double pageStep()const;

  void setTickInterval(double ti);
  double tickInterval()const;

  void setTickPosition(QSlider::TickPosition position);
  QSlider::TickPosition tickPosition()const;
  
  double sliderPosition()const;
  void setSliderPosition(double);

  void setTracking(bool enable);
  bool hasTracking()const;
  
  void triggerAction(QAbstractSlider::SliderAction action);

  Qt::Orientation orientation()const;

  void setInvertedAppearance(bool invertedAppearance);
  bool invertedAppearance()const;

  void setInvertedControls(bool invertedControls);
  bool invertedControls()const;

  QString handleToolTip()const;
  void setHandleToolTip(const QString& toolTip);

  virtual bool eventFilter(QObject*, QEvent*);

  void setValueProxy(ValueProxy* proxy);
  ValueProxy* valueProxy() const;

public slots:
  void setValue(double value);

  void setOrientation(Qt::Orientation orientation);

signals:
  void valueChanged(double value);

  void sliderMoved(double position);
  
  void sliderPressed();
  
  void sliderReleased();

  void rangeChanged(double min, double max);

protected slots:
  void onValueChanged(int value);
  void onSliderMoved(int position);
  void onRangeChanged(int min, int max);
  void onValueProxyAboutToBeModified();
  void onValueProxyModified();

protected:
  QScopedPointer<DoubleSliderPrivate> d_ptr;

private:
  Q_DECLARE_PRIVATE(DoubleSlider);
  Q_DISABLE_COPY(DoubleSlider);
};

#endif