FSliderHandle.h

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/********************************************************************
**                Image Component Library (ICL)                    **
**                                                                 **
** Copyright (C) 2006-2013 CITEC, University of Bielefeld          **
**                         Neuroinformatics Group                  **
** Website: www.iclcv.org and                                      **
**          http://opensource.cit-ec.de/projects/icl               **
**                                                                 **
** File   : ICLQt/src/ICLQt/FSliderHandle.h                        **
** Module : ICLQt                                                  **
** Authors: Christof Elbrechter                                    **
**                                                                 **
**                                                                 **
** GNU LESSER GENERAL PUBLIC LICENSE                               **
** This file may be used under the terms of the GNU Lesser General **
** Public License version 3.0 as published by the                  **
**                                                                 **
** Free Software Foundation and appearing in the file LICENSE.LGPL **
** included in the packaging of this file.  Please review the      **
** following information to ensure the license requirements will   **
** be met: http://www.gnu.org/licenses/lgpl-3.0.txt                **
**                                                                 **
** The development of this software was supported by the           **
** Excellence Cluster EXC 277 Cognitive Interaction Technology.    **
** The Excellence Cluster EXC 277 is a grant of the Deutsche       **
** Forschungsgemeinschaft (DFG) in the context of the German       **
** Excellence Initiative.                                          **
**                                                                 **
********************************************************************/

#pragma once

#include <ICLUtils/CompatMacros.h>
#include <ICLQt/GUIHandle.h>
#include <ICLQt/ThreadedUpdatableSlider.h>

class QSlider;
class QLCDNumber;
namespace icl{
  namespace qt{

    class ICLQt_API FSliderHandle : public GUIHandle<ThreadedUpdatableSlider>{
      QLCDNumber *lcd;
      public:
      FSliderHandle();

      FSliderHandle(ThreadedUpdatableSlider *sl,float *minV, float *maxV, float *M, float *B,int range, GUIWidget *w, QLCDNumber *lcd=0);


      inline QLCDNumber *getDisplay() { return lcd; }

      void setMin(float min);

      void setMax(float max);

      void setRange(float min, float max){ setMin(min); setMax(max); }

      void setValue(float val);

      void setAll(float min ,float max, float val){ setRange(min,max); setValue(val); }

      float getMin() const;

      float getMax() const;

      float getValue() const;

      void operator=(float val) { setValue(val); }


      virtual void registerCallback(const GUI::Callback &cb, const std::string &events="value"){
        (***this).registerCallback(cb,events);
      }

      using GUIHandleBase::registerCallback;

      virtual void removeCallbacks(){
        GUIHandleBase::removeCallbacks();
        (***this).removeCallbacks();
      }

      private:

      void updateMB();

      float *m_fMin;

      float *m_fMax;

      int f2i(float f) const{
        return (int)((f-*m_fB)/ *m_fM);
      }

      float i2f(int i) const{
        return *m_fM*i+*m_fB;
      }

      float *m_fM;

      float *m_fB;

      int m_iSliderRange;
    };

  } // namespace qt
}