text: /****************************************************************************
   **
   ** Copyright (C) Qxt Foundation. Some rights reserved.
   **
   ** This file is part of the QxtGui module of the Qxt library.
   **
   ** This library is free software; you can redistribute it and/or modify it
   ** under the terms of the Common Public License, version 1.0, as published
   ** by IBM, and/or under the terms of the GNU Lesser General Public License,
   ** version 2.1, as published by the Free Software Foundation.
   **
   ** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
   ** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
   ** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
   ** FITNESS FOR A PARTICULAR PURPOSE.
   **
   ** You should have received a copy of the CPL and the LGPL along with this
   ** file. See the LICENSE file and the cpl1.0.txt/lgpl-2.1.txt files
   ** included with the source distribution for more information.
   ** If you did not receive a copy of the licenses, contact the Qxt Foundation.
   **
   ** <http://libqxt.org>  <foundation@libqxt.org>
   **
   ****************************************************************************/
  #ifndef QXTSPANSLIDER_H
  #define QXTSPANSLIDER_H
  
  #include <QSlider>
  #include "qxtnamespace.h"
  #include "qxtglobal.h"
  
  class QxtSpanSliderPrivate;
  
  class QXT_GUI_EXPORT QxtSpanSlider : public QSlider
  {
      Q_OBJECT
      QXT_DECLARE_PRIVATE(QxtSpanSlider)
      Q_PROPERTY(int lowerValue READ lowerValue WRITE setLowerValue)
      Q_PROPERTY(int upperValue READ upperValue WRITE setUpperValue)
      Q_PROPERTY(int lowerPosition READ lowerPosition WRITE setLowerPosition)
      Q_PROPERTY(int upperPosition READ upperPosition WRITE setUpperPosition)
      Q_PROPERTY(HandleMovementMode handleMovementMode READ handleMovementMode WRITE setHandleMovementMode)
      Q_ENUMS(HandleMovementMode)
  
  public:
      explicit QxtSpanSlider(QWidget* parent = 0);
      explicit QxtSpanSlider(Qt::Orientation orientation, QWidget* parent = 0);
      virtual ~QxtSpanSlider();
  
      enum HandleMovementMode
      {
          FreeMovement,
          NoCrossing,
          NoOverlapping
      };
  
      HandleMovementMode handleMovementMode() const;
      void setHandleMovementMode(HandleMovementMode mode);
  
      int lowerValue() const;
      int upperValue() const;
  
      int lowerPosition() const;
      int upperPosition() const;
  
  public Q_SLOTS:
      void setLowerValue(int lower);
      void setUpperValue(int upper);
      void setSpan(int lower, int upper);
  
      void setLowerPosition(int lower);
      void setUpperPosition(int upper);
  
  Q_SIGNALS:
      void spanChanged(int lower, int upper);
      void lowerValueChanged(int lower);
      void upperValueChanged(int upper);
  
      void lowerPositionChanged(int lower);
      void upperPositionChanged(int upper);
  
  protected:
      virtual void keyPressEvent(QKeyEvent* event);
      virtual void mousePressEvent(QMouseEvent* event);
      virtual void mouseMoveEvent(QMouseEvent* event);
      virtual void mouseReleaseEvent(QMouseEvent* event);
      virtual void paintEvent(QPaintEvent* event);
  };
  
  #endif // QXTSPANSLIDER_H
  