cxTimelineWidget.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/

#ifndef CXTIMELINEWIDGET_H_
#define CXTIMELINEWIDGET_H_

#include "cxResourceWidgetsExport.h"

#include <QWidget>

#include "vtkForwardDeclarations.h"
#include "cxForwardDeclarations.h"
#include "cxVector3D.h"
#include "cxPlaybackTime.h"


namespace cx
{

class cxResourceWidgets_EXPORT TimelineWidget : public QWidget
{
Q_OBJECT

public:
        TimelineWidget(QWidget* parent);
        virtual ~TimelineWidget();


        void setEvents(std::vector<TimelineEvent> events);
//      void setRegions(std::vector<std::pair<double, double> > validRegions);
        void setRange(double start, double stop);
        void setPos(double pos);
        double getPos() const;

signals:
        void positionChanged();

protected slots:

protected:
        virtual bool event(QEvent *event);
        virtual void mousePressEvent(QMouseEvent* event);
        virtual void mouseReleaseEvent(QMouseEvent* event);
        virtual void mouseMoveEvent(QMouseEvent* event);
        virtual void resizeEvent(QResizeEvent* evt); 
        virtual void paintEvent(QPaintEvent* event); 
        virtual QSize sizeHint() const;
        QSize minimumSizeHint() const;

private:
        int mapTime2PlotX(double time) const;
        double mapPlotX2Time(int plotX) const;
        bool showHelp(QPoint pos);

        void setPositionFromScreenPos(int x, int y);
        void createCompactingTransforms();
        double findCompactedTime(double timeInterval, double totalUsedTime, double totalTime) const;

//      std::vector<std::pair<double, double> > mValidRegions;
        std::vector<TimelineEvent> mEvents;
        int mBorder;
        double mStart, mStop, mPos;
        QRect mFullArea; 
        QRect mPlotArea; 
        bool mCloseToGlyph; 
        int mTolerance_p; 
        QStringList mContinousEvents; //< list of all continous events, used for stacked display
        std::vector<TimelineEvent> mNoncompactedIntervals; 
//      std::vector<QColor> mEventColors; ///< use to color continous events

        vtkPiecewiseFunctionPtr mBackward;
        vtkPiecewiseFunctionPtr mForward;

};

} /* namespace cx */

#endif /* CXTIMELINEWIDGET_H_ */