navigationwidget.h

/******************************************************************************
*
*   This file is part of Cardio Curves.
*   Copyright (C) 2009 Jan Gunnar Andreassen
*   Copyright (C) 2009 Lars Magne Engedal
*
*   Cardio Curves is free software: you can redistribute it and/or modify
*   it under the terms of the GNU Lesser General Public License as published
*   by the Free Software Foundation, either version 2.1 of the License, or
*   (at your option) any later version.
*
*   Cardio Cruves 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 Lesser General Public License for more details.
*
*   You should have received a copy of the GNU Lesser General Public License
*   along with Cardio Curves.  If not, see <http://www.gnu.org/licenses/>.
*
*   Developer contact:
*       (janislazzaroni at users.sourceforge.net)
*       (engedal at users.sourceforge.net )
******************************************************************************/

#ifndef NAVIGATIONWIDGET_H
#define NAVIGATIONWIDGET_H

#include <QWidget>

#include "ui_navigationwidget.h"

class NavigationWidget : public QWidget, public Ui::NavigationWidget
{
    Q_OBJECT

public:
    NavigationWidget(QWidget *parent = 0);

signals:
    void orderNewScreen(int screenNumber);

public slots:
    void setupSliders(int screens, int patientId, QDateTime *startingPoint);

private slots:

  //slot to trig when slider changes
  //Triggered when user releases slider (connection made in constructor)
  void sliderChanged(int);
  //slot to trig when scrollbar changes
  //Triggered when user releases scrollbar (connection made in constructor)
    void scrollbarChanged(int);
    //Handles skiptoendbutton
    void skipEndSlot();
    //Handles skiptostartbutton
    void skipStartSlot();
    //Handles fastforwardbutton, ie slider singlestep forward
    void fastForwardSlot();
    //Handles fastbackwardbutton, ie slider singlestep back
    void fastBackwardSlot();
    //Handles slowforwardbutton, ie scrollbar singlestep forward
    void slowForwardSlot();
    //Handles slowbackwardbutton, ie scrollbar singlestep back
    void slowBackwardSlot();

private:
  //total number of screens in the open file,
  //set by setupSliders method only
    int numberofScreens;
    //result of current slider&scrollbar positions,
    //remember that first screen is 0
    int currentScreen;
    //set by setupSliders method only
    int totalSliderpositions;
    //may change depending on slider position
    int totalScrollbarpositions;
    //scrollbar positions at the last slider position
    int lastScrollbarpositions;
    //current slider position
    int sliderPosition;
    //current scrollbar position
    int scrollbarPosition;
};

#endif // NAVIGATIONWIDGET_H

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