SubPixelFunction.h

/* -*- mode: c++ -*-
 *
 * pointing/transferfunctions/SubPixelFunction.h --
 *
 * Initial software
 * Authors: Izzat Mukhanov
 * Copyright © Inria
 *
 * http://libpointing.org/
 *
 * This software may be used and distributed according to the terms of
 * the GNU General Public License version 2 or any later version.
 *
 */

#ifndef SUBPIXELFUNCTION_H
#define SUBPIXELFUNCTION_H

#include <pointing/transferfunctions/TransferFunction.h>

namespace pointing
{
  class SubPixelFunction : public TransferFunction
  {
    PointingDevice *input;
    DisplayDevice *output;
    // Decorator pattern is used to extend any TransferFunction
    TransferFunction *func;

    bool isOn;
    int cardinality;
    int widgetSize;
    float resUseful;

    TimeStamp::inttime lastTime;
    double vPix, vUse, gOpt, gPix;

    void minGainAndVelocity();
    void computeParameters();

    int debugLevel;

    URI decodeURI(URI &uri);
    void initialize(URI &uri, URI &funcUri, PointingDevice *input, DisplayDevice *output);

  public:

    SubPixelFunction(const char* uri, PointingDevice *input, DisplayDevice *output);
    SubPixelFunction(std::string uri, PointingDevice *input, DisplayDevice *output);
    SubPixelFunction(URI &uri, PointingDevice *input, DisplayDevice *output);

    SubPixelFunction(URI uri, URI funcUri, PointingDevice *input, DisplayDevice *output);

    void setSubPixeling(bool subpixeling);

    bool getSubPixeling() const;

    void setHumanResolution(int humanResolution);

    int getHumanResolution() const;

    void setCardinalitySize(int cardinality, int size);

    void getCardinalitySize(int *cardinality, int *size) const;

    void clearState(void);

    void applyi(int dxMickey, int dyMickey, int *dxPixel, int *dyPixel,
                TimeStamp::inttime timestamp=TimeStamp::undef);

    void applyd(int dxMickey, int dyMickey, double *dxPixel, double *dyPixel,
                TimeStamp::inttime timestamp=TimeStamp::undef);

    URI getURI(bool expanded=false) const;

    URI getInnerURI(bool expanded=false) const;

    ~SubPixelFunction();
  };
}

#endif // SUBPIXELFUNCTION_H