text: /****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the QtQuick module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:LGPL$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
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  **
  ** 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.LGPL3 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-3.0.html.
  **
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  ** Alternatively, this file may be used under the terms of the GNU
  ** General Public License version 2.0 or (at your option) the GNU General
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  ****************************************************************************/
  
  #ifndef POINTVECTOR_H
  #define POINTVECTOR_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 "qquickdirection_p.h"
  
  QT_BEGIN_NAMESPACE
  
  class QQuickPointDirection : public QQuickDirection
  {
      Q_OBJECT
      Q_PROPERTY(qreal x READ x WRITE setX NOTIFY xChanged)
      Q_PROPERTY(qreal y READ y WRITE setY NOTIFY yChanged)
      Q_PROPERTY(qreal xVariation READ xVariation WRITE setXVariation NOTIFY xVariationChanged)
      Q_PROPERTY(qreal yVariation READ yVariation WRITE setYVariation NOTIFY yVariationChanged)
  public:
      explicit QQuickPointDirection(QObject *parent = 0);
      QPointF sample(const QPointF &from) override;
      qreal x() const
      {
          return m_x;
      }
  
      qreal y() const
      {
          return m_y;
      }
  
      qreal xVariation() const
      {
          return m_xVariation;
      }
  
      qreal yVariation() const
      {
          return m_yVariation;
      }
  
  Q_SIGNALS:
  
      void xChanged(qreal arg);
  
      void yChanged(qreal arg);
  
      void xVariationChanged(qreal arg);
  
      void yVariationChanged(qreal arg);
  
  public Q_SLOTS:
      void setX(qreal arg)
      {
          if (m_x != arg) {
              m_x = arg;
              Q_EMIT xChanged(arg);
          }
      }
  
      void setY(qreal arg)
      {
          if (m_y != arg) {
              m_y = arg;
              Q_EMIT yChanged(arg);
          }
      }
  
      void setXVariation(qreal arg)
      {
          if (m_xVariation != arg) {
              m_xVariation = arg;
              Q_EMIT xVariationChanged(arg);
          }
      }
  
      void setYVariation(qreal arg)
      {
          if (m_yVariation != arg) {
              m_yVariation = arg;
              Q_EMIT yVariationChanged(arg);
          }
      }
  
  private:
  
      qreal m_x;
      qreal m_y;
      qreal m_xVariation;
      qreal m_yVariation;
  };
  
  QT_END_NAMESPACE
  #endif // POINTVECTOR_H
  