QskBoundedControl.h

/******************************************************************************
 * QSkinny - Copyright (C) The authors
 *           SPDX-License-Identifier: BSD-3-Clause
 *****************************************************************************/
 
#ifndef QSK_BOUNDED_CONTROL_H
#define QSK_BOUNDED_CONTROL_H
 
#include "QskControl.h"
 
class QskIntervalF;
 
class QSK_EXPORT QskBoundedControl : public QskControl
{
    Q_OBJECT
 
    Q_PROPERTY( qreal minimum READ minimum WRITE setMinimum NOTIFY minimumChanged )
    Q_PROPERTY( qreal maximum READ maximum WRITE setMaximum NOTIFY maximumChanged )
    Q_PROPERTY( QskIntervalF boundaries READ boundaries
        WRITE setBoundaries NOTIFY boundariesChanged )
 
    using Inherited = QskControl;
 
  public:
    ~QskBoundedControl() override;
 
    qreal minimum() const;
    qreal maximum() const;
 
    qreal boundaryLength() const;
 
    void setBoundaries( qreal min, qreal max );
    QskIntervalF boundaries() const;
 
    qreal boundedValue( qreal ) const;
 
    qreal valueAsRatio( qreal ) const;
    qreal valueFromRatio( qreal ) const;
 
  public Q_SLOTS:
    void setMinimum( qreal );
    void setMaximum( qreal );
    void setBoundaries( const QskIntervalF& );
 
  Q_SIGNALS:
    void minimumChanged( qreal );
    void maximumChanged( qreal );
    void boundariesChanged( const QskIntervalF&  );
 
  protected:
    QskBoundedControl( QQuickItem* parent = nullptr );
    QskBoundedControl( qreal min, qreal max, QQuickItem* parent = nullptr );
 
    void componentComplete() override;
 
  private:
    void adjustBoundaries( bool increasing );
 
    qreal m_minimum;
    qreal m_maximum;
};
 
#endif