doubleRangeWidget.h

/* ********************************************************************
    itom software
    URL: http://www.uni-stuttgart.de/ito
    Copyright (C) 2020, 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 DOUBLERANGEWIDGET_H
#define DOUBLERANGEWIDGET_H

// Qt includes
#include <QSlider>


#include "commonWidgets.h"

class DoubleRangeSlider;
class DoubleSpinBox;
class DoubleRangeWidgetPrivate;
class ValueProxy;

class ITOMWIDGETS_EXPORT DoubleRangeWidget : public QWidget
{
  Q_OBJECT
  Q_PROPERTY(int decimals READ decimals WRITE setDecimals)
  Q_PROPERTY(double singleStep READ singleStep WRITE setSingleStep)
  Q_PROPERTY(double minimum READ minimum WRITE setMinimum)
  Q_PROPERTY(double maximum READ maximum WRITE setMaximum)
  Q_PROPERTY(double minimumValue READ minimumValue WRITE setMinimumValue)
  Q_PROPERTY(double maximumValue READ maximumValue WRITE setMaximumValue)
  Q_PROPERTY(QString prefix READ prefix WRITE setPrefix)
  Q_PROPERTY(QString suffix READ suffix WRITE setSuffix)
  Q_PROPERTY(double tickInterval READ tickInterval WRITE setTickInterval)
  Q_PROPERTY(bool autoSpinBoxWidth READ isAutoSpinBoxWidth WRITE setAutoSpinBoxWidth)
  Q_PROPERTY(Qt::Alignment spinBoxTextAlignment READ spinBoxTextAlignment WRITE setSpinBoxTextAlignment)
  Q_PROPERTY(Qt::Alignment spinBoxAlignment READ spinBoxAlignment WRITE setSpinBoxAlignment)
  Q_PROPERTY(bool tracking READ hasTracking WRITE setTracking)
  Q_PROPERTY(bool symmetricMoves READ symmetricMoves WRITE setSymmetricMoves)

public:
  typedef QWidget Superclass;

  explicit DoubleRangeWidget(QWidget* parent = 0);
  
  virtual ~DoubleRangeWidget();

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

  virtual double maximum()const;
  virtual void setMaximum(double maximum);
  virtual void setRange(double min, double max);
  virtual void range(double minimumAndMaximum[2])const;

  virtual double minimumValue()const;

  virtual double maximumValue()const;

  virtual void values(double &minValue, double &maxValue)const;

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

  virtual int decimals()const;

  virtual QString prefix()const;
 virtual  void setPrefix(const QString& prefix);

  virtual QString suffix()const;
  virtual void setSuffix(const QString& suffix);

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

  virtual void setSpinBoxAlignment(Qt::Alignment alignment);
  virtual Qt::Alignment spinBoxAlignment()const;

  virtual void setSpinBoxTextAlignment(Qt::Alignment alignment);
  virtual Qt::Alignment spinBoxTextAlignment()const;

  virtual void setTracking(bool enable);
  virtual bool hasTracking()const;

  // RangeWidget siblings.
  virtual bool isAutoSpinBoxWidth()const;
  virtual void setAutoSpinBoxWidth(bool autoWidth);
  
  virtual bool symmetricMoves()const;
  virtual void setSymmetricMoves(bool symmetry);

  virtual DoubleRangeSlider* slider()const;
  virtual DoubleSpinBox* minimumSpinBox()const;
  virtual DoubleSpinBox* maximumSpinBox()const;

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

public Q_SLOTS:
  virtual void reset();
  virtual void setMinimumValue(double value);
  virtual void setMaximumValue(double value);
  virtual void setValues(double minValue, double maxValue);

  virtual void setDecimals(int decimals);

Q_SIGNALS:
  //void sliderMoved(double position);
  void minimumValueChanged(double value);
  void minimumValueIsChanging(double value);
  void maximumValueChanged(double value);
  void maximumValueIsChanging(double value);
  void valuesChanged(double minValue, double maxValue);
  void rangeChanged(double min, double max);

protected Q_SLOTS:
  virtual void startChanging();
  virtual void stopChanging();
  virtual void changeValues(double newMinValue, double newMaxValue);
  virtual void changeMinimumValue(double value);
  virtual void changeMaximumValue(double value);
  virtual void setSliderValues();
  virtual void setMinimumToMaximumSpinBox(double minimum);
  virtual void setMaximumToMinimumSpinBox(double maximum);
  virtual void onSliderRangeChanged(double min, double max);

  virtual void onValueProxyAboutToBeModified();
  virtual void onValueProxyModified();

protected:
  virtual bool eventFilter(QObject *obj, QEvent *event);

  virtual void setSlider(DoubleRangeSlider* slider);

protected:
  QScopedPointer<DoubleRangeWidgetPrivate> d_ptr;

private:
  Q_DECLARE_PRIVATE(DoubleRangeWidget);
  Q_DISABLE_COPY(DoubleRangeWidget);

};

#endif