timeBar.h

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/******************************************************************************
** Copyright (c) 1992-2010 VT MAK
** All rights reserved.
******************************************************************************/


#pragma once

#include <lgrGui/lgrGui.h>
#include <lgrGui/lgrZoomableWidget.h>
#include <lgrGui/overlapSlider.h>
#include <lgrGui/lgrTimeBarZoomBox.h>

#include <lgrUtil/absoluteTime.h>

namespace MAKLogger
{
   class DtValueSmoother;
   class DtLgrGuiModel;
   class DtLgrTimelineWindowSliderBar;

   class DT_DLL_LGRGUI DtTimelineBar : public DtOverlapSlider
   {
      Q_OBJECT

   public:
      DtTimelineBar(DtLgrGuiModel& model,QWidget* parent);

      virtual ~DtTimelineBar();

     virtual void reverseTicks(bool reverse);
     
      virtual DtAbsoluteTime firstTime() const;
      virtual DtAbsoluteTime lastTime() const;      
      virtual DtAbsoluteTime currentTime() const;
      virtual DtAbsoluteTime startTime() const;
      virtual DtAbsoluteTime stopTime() const;

      virtual DtRelativeTime duration() const;
      virtual DtRelativeTime playDuration() const;
      
      virtual int verticalMargin() const;

      virtual DtSliderBar* addTimelineWindowSlider();
      virtual DtSliderBar* windowSlider();

      virtual DtLgrTimeBarZoomBox* timeBarZoomBox();
      virtual void enableZoomBox(bool enable);

      virtual DtLgrGuiModel* model();

      virtual void setEmptyText(const QString& emptyText);

   public slots:

      virtual void setStartStopTimePercentages(float,float);

      virtual void testForUpdate();

      virtual void drawZoomBox();

      virtual void resizeZoomBox(int delta);

      virtual void resizeEvent(QResizeEvent *qre);
   
   signals:

      void wheelMoved(int);

      void drawnTimesChanged(float);
      
   protected:

      static DtRelativeTime textTickSize(DtRelativeTime duration);

      virtual void paintEvent( QPaintEvent* );
      virtual void mouseReleaseEvent(QMouseEvent*);
      virtual void mouseMoveEvent( QMouseEvent* );
      virtual void mousePressEvent( QMouseEvent* );
      virtual void keyPressEvent( QKeyEvent* );
      virtual void wheelEvent(QWheelEvent *event);
      virtual void contextMenuEvent(QContextMenuEvent * );
      virtual void updateCurrentTime(QPoint);

      virtual void draw(QPainter& painter,const QRect& boundingRect);
      virtual void drawBox(QPainter& painter,DtSliderBox* box);   
      virtual void drawTicks(QPainter& painter,double,double);
      virtual void drawBackground(QPainter& painter,double ,double );

   protected:

      double myDrawnCurrentTime;
      double myDrawnStartTime;
      double myDrawnStopTime;
      double myDrawnFirstVisibleTime;
      double myDrawnLastVisibleTime;
      int myHorizontalMargin;
      int myVerticalMargin;
      bool myReverseTicks;

      bool myUpdateTimeFlag;
      bool mySelectingArea;
      DtValueSmoother* myValueSmoother;

      DtLgrTimelineWindowSliderBar* myTimelineWindowSlider;
      DtLgrTimeBarZoomBox* myTimeBarZoomBox;

      DtLgrGuiModel* myModel;

      float myLeftViewableOffset;
      float myRightViewableOffset;

      QString myEmptyText;
   };
}