text: /****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: http://www.qt.io/licensing/
  **
  ** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:LGPL3$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see http://www.qt.io/terms-conditions. For further
  ** information use the contact form at http://www.qt.io/contact-us.
  **
  ** GNU Lesser General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU Lesser
  ** General Public License version 3 as published by the Free Software
  ** Foundation and appearing in the file LICENSE.LGPLv3 included in the
  ** packaging of this file. Please review the following information to
  ** ensure the GNU Lesser General Public License version 3 requirements
  ** will be met: https://www.gnu.org/licenses/lgpl.html.
  **
  ** GNU General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU
  ** General Public License version 2.0 or later as published by the Free
  ** Software Foundation and appearing in the file LICENSE.GPL included in
  ** the packaging of this file. Please review the following information to
  ** ensure the GNU General Public License version 2.0 requirements will be
  ** met: http://www.gnu.org/licenses/gpl-2.0.html.
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/
  
  #ifndef QQUICKSLIDER_P_H
  #define QQUICKSLIDER_P_H
  
  //
  //  W A R N I N G
  //  -------------
  //
  // This file is not part of the Qt API.  It exists purely as an
  // implementation detail.  This header file may change from version to
  // version without notice, or even be removed.
  //
  // We mean it.
  //
  
  #include <QtQuickTemplates2/private/qquickcontrol_p.h>
  
  QT_BEGIN_NAMESPACE
  
  class QQuickSliderPrivate;
  
  class Q_QUICKTEMPLATES2_PRIVATE_EXPORT QQuickSlider : public QQuickControl
  {
      Q_OBJECT
      Q_PROPERTY(qreal from READ from WRITE setFrom NOTIFY fromChanged FINAL)
      Q_PROPERTY(qreal to READ to WRITE setTo NOTIFY toChanged FINAL)
      Q_PROPERTY(qreal value READ value WRITE setValue NOTIFY valueChanged FINAL)
      Q_PROPERTY(qreal position READ position NOTIFY positionChanged FINAL)
      Q_PROPERTY(qreal visualPosition READ visualPosition NOTIFY visualPositionChanged FINAL)
      Q_PROPERTY(qreal stepSize READ stepSize WRITE setStepSize NOTIFY stepSizeChanged FINAL)
      Q_PROPERTY(SnapMode snapMode READ snapMode WRITE setSnapMode NOTIFY snapModeChanged FINAL)
      Q_PROPERTY(bool pressed READ isPressed WRITE setPressed NOTIFY pressedChanged FINAL)
      Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation NOTIFY orientationChanged FINAL)
      Q_PROPERTY(QQuickItem *handle READ handle WRITE setHandle NOTIFY handleChanged FINAL)
  
  public:
      explicit QQuickSlider(QQuickItem *parent = nullptr);
  
      qreal from() const;
      void setFrom(qreal from);
  
      qreal to() const;
      void setTo(qreal to);
  
      qreal value() const;
      void setValue(qreal value);
  
      qreal position() const;
      qreal visualPosition() const;
  
      qreal stepSize() const;
      void setStepSize(qreal step);
  
      enum SnapMode {
          NoSnap,
          SnapAlways,
          SnapOnRelease
      };
      Q_ENUM(SnapMode)
  
      SnapMode snapMode() const;
      void setSnapMode(SnapMode mode);
  
      bool isPressed() const;
      void setPressed(bool pressed);
  
      Qt::Orientation orientation() const;
      void setOrientation(Qt::Orientation orientation);
  
      QQuickItem *handle() const;
      void setHandle(QQuickItem *handle);
  
      Q_REVISION(1) Q_INVOKABLE qreal valueAt(qreal position) const;
  
  public Q_SLOTS:
      void increase();
      void decrease();
  
  Q_SIGNALS:
      void fromChanged();
      void toChanged();
      void valueChanged();
      void positionChanged();
      void visualPositionChanged();
      void stepSizeChanged();
      void snapModeChanged();
      void pressedChanged();
      void orientationChanged();
      void handleChanged();
  
  protected:
      void keyPressEvent(QKeyEvent *event) override;
      void keyReleaseEvent(QKeyEvent *event) override;
      void mousePressEvent(QMouseEvent *event) override;
      void mouseMoveEvent(QMouseEvent *event) override;
      void mouseReleaseEvent(QMouseEvent *event) override;
      void mouseUngrabEvent() override;
      void wheelEvent(QWheelEvent *event) override;
  
      void mirrorChange() override;
      void componentComplete() override;
  
  #ifndef QT_NO_ACCESSIBILITY
      void accessibilityActiveChanged(bool active) override;
      QAccessible::Role accessibleRole() const override;
  #endif
  
  private:
      Q_DISABLE_COPY(QQuickSlider)
      Q_DECLARE_PRIVATE(QQuickSlider)
  };
  
  QT_END_NAMESPACE
  
  QML_DECLARE_TYPE(QQuickSlider)
  
  #endif // QQUICKSLIDER_P_H
  