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/********************************************************************************
* FaceTrackNoIR		This program is a private project of some enthusiastic		*
*					gamers from Holland, who don't like to pay much for			*
*					head-tracking.												*
*																				*
* Copyright (C) 2012	Wim Vriend (Developing)									*
*						Ron Hendriks (Researching and Testing)					*
*																				*
* Homepage:			http://facetracknoir.sourceforge.net/home/default.htm		*
*																				*
* This program is free software; you can redistribute it and/or modify it		*
* under the terms of the GNU General Public License as published by the			*
* Free Software Foundation; either version 3 of the License, or (at your		*
* option) any later version.													*
*																				*
* This program is distributed in the hope that it will be useful, but			*
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY	*
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for	*
* more details.																	*
*																				*
* You should have received a copy of the GNU General Public License along		*
* with this program; if not, see <http://www.gnu.org/licenses/>.				*
*																				*
********************************************************************************/
#include "ftnoir_tracker_base/ftnoir_tracker_base.h"
#include "ftnoir_tracker_sm/ftnoir_tracker_sm_types.h"
#include "ui_ftnoir_sm_controls.h"

#include <QMessageBox>
#include <QSettings>
#include <QProcess>
#include <windows.h>
#include "math.h"
#include "facetracknoir/global-settings.h"
#include "compat/compat.h"
#include <QFrame>

using namespace std;

class FTNoIR_Tracker : public ITracker
{
public:
	FTNoIR_Tracker();
	~FTNoIR_Tracker();

    void StartTracker( QFrame* parent_window );
    void StopTracker( bool exit );
    bool GiveHeadPoseData(double *data);				// Returns true if confidence is good
    void WaitForExit();

	void loadSettings();

private:
	//
	// global variables
	//
    PortableLockedShm lck_shm;
    SMMemMap *pMemData;
	QProcess *faceAPI;

	bool bEnableRoll;
	bool bEnablePitch;
	bool bEnableYaw;
	bool bEnableX;
	bool bEnableY;
	bool bEnableZ;
};

// Widget that has controls for SMoIR protocol client-settings.
class TrackerControls: public QWidget, public ITrackerDialog
{
public:
	explicit TrackerControls();
    virtual ~TrackerControls();
	void showEvent ( QShowEvent * event );

    void Initialize(QWidget *parent);
	void registerTracker(ITracker *tracker) {
		theTracker = (FTNoIR_Tracker *) tracker;			// Accept the pointer to the Tracker
	}
	void unRegisterTracker() {
		theTracker = NULL;									// Reset the pointer
	}

private:
	Ui::UICSMClientControls ui;
	void loadSettings();
	void doCommand( int command );
	void doCommand( int command, int value );

	/** helper **/
	bool settingsDirty;
	int prev_state;											// Previous engine state

	//
	// global variables
	//
	SMMemMap *pMemData;
    
    smEngineHandle *engine_handle;
	QTimer *timUpdateSettings;								// Timer to display current settings

	FTNoIR_Tracker *theTracker;
    PortableLockedShm shm;

private slots:
	void doOK();
	void doCancel();
	void save();
	void settingChanged() { settingsDirty = true; }
	void doTimUpdate();
	void showSettings( int newState );
	void doStartEngine(){
		doCommand(FT_SM_START);
	}
	void doStopEngine(){
		doCommand(FT_SM_STOP);
	}
	void doShowCam(){
		doCommand(FT_SM_SHOW_CAM);
	}
	void doSetFilter(int value){
		doCommand(FT_SM_SET_PAR_FILTER, value);
	}
	void settingChanged(int dummy) { 
		settingsDirty = true;
	}

public slots:
     void stateChanged(int newState) {
		 settingsDirty = true;
	 }

};

//*******************************************************************************************************
// FaceTrackNoIR Tracker DLL. Functions used to get general info on the Tracker
//*******************************************************************************************************
class FTNoIR_TrackerDll : public Metadata
{
public:
	FTNoIR_TrackerDll();
	~FTNoIR_TrackerDll();

	void getFullName(QString *strToBeFilled);
	void getShortName(QString *strToBeFilled);
	void getDescription(QString *strToBeFilled);
	void getIcon(QIcon *icon);

private:
	QString trackerFullName;									// Trackers' name and description
	QString trackerShortName;
	QString trackerDescription;
};