C:/Users/albertlr/projects/TarzaNN/TarzaNN/UI_Layer.h

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/****************************************************************************
 **
 ** Copyright C 2002-2012 Laboratory for Active and Attentive Vision (LAAV), Department of Computer Science and Engineering, York University, Toronto, ON, Canada.
 ** All rights reserved.
 **
 ** This file is part of the TarzaNN Neural Network Simulator.
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** See http://www.tarzann.org/gpl/ for GPL licensing information.
 **
 ** Contact info@tarzann.org if any conditions of this licensing are
 ** not clear to you.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/

#ifndef UI_LAYER_H_INCLUDED
#define UI_LAYER_H_INCLUDED


#include "UI_Widget.h"
#include "Observer.h"
#include <QList>

class Layer;
class QLabel;

class UI_Layer : public UI_Widget, public Observer
{
        Q_OBJECT

public:
        UI_Layer(Layer *layer, QWidget* parent, const char* name=0, Qt::WFlags fl=0 );
        ~UI_Layer(void);

        virtual void updateNN(Observer* sourceFP, bool functional);

        virtual void resizeEvent( QResizeEvent *e );
        virtual void paintEvent( QPaintEvent *e );

protected:
        void DrawArrow(QPainter *painter, float x_center, float y_center, int length, int distance_from_center, float angle);
        void Init();
        void Destroy();
        void DrawLayer();
        void UpdateLabels();
        int Pos(int speed, int dir);
        void GetLengthAndOffset(float &length, int &offset);
        QTransform GetTransform(float x_center, float y_center, int length, int distance_from_center, float angle, float y_squeeze = 1);
        float ConvertDirToDeg(int dirs, int dir);
protected:
        Layer *_layer;
        QPolygonF _arrow;
        QList<QLabel*> _fpLabels;
        int _numberDirections;
        int _numberSpeeds;
        int _numberGradients;

        const float _arrow_Width;
        const float _arrow_Length;
};

#endif //UI_LAYER_H_INCLUDED