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//
// C++ Interface: woverview
//
// Description:
//
//
// Author: Tue Haste Andersen <haste@diku.dk>, (C) 2003
//
// Copyright: See COPYING file that comes with this distribution
//
//
#ifndef WOVERVIEW_H
#define WOVERVIEW_H
#include <QPaintEvent>
#include <QMouseEvent>
#include <QPixmap>
#include <QColor>
#include <QList>
#include "trackinfoobject.h"
#include "widget/wwidget.h"
#include "waveform/renderers/waveformsignalcolors.h"
#include "waveform/renderers/waveformmarkset.h"
#include "waveform/renderers/waveformmarkrange.h"
/**
Waveform overview display
@author Tue Haste Andersen
*/
class ControlObjectThreadMain;
class Waveform;
class WOverview : public WWidget
{
Q_OBJECT
public:
WOverview(const char* pGroup, ConfigObject<ConfigValue>* pConfig, QWidget *parent=NULL);
virtual ~WOverview();
void setup(QDomNode node);
protected:
void mouseMoveEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
void mousePressEvent(QMouseEvent *e);
void paintEvent(QPaintEvent *);
void resizeEvent(QResizeEvent *);
public slots:
void setValue(double);
void slotLoadNewTrack(TrackPointer pTrack);
void slotTrackLoaded(TrackPointer pTrack);
void slotUnloadTrack(TrackPointer pTrack);
signals:
void trackDropped(QString filename, QString group);
protected:
virtual void dragEnterEvent(QDragEnterEvent* event);
virtual void dropEvent(QDropEvent* event);
Waveform* m_pWaveform;
QImage* m_pWaveformSourceImage;
QImage m_waveformImageScaled;
WaveformSignalColors m_signalColors;
/** Hold the last visual sample processed to generate the pixmap*/
int m_actualCompletion;
bool m_pixmapDone;
float m_waveformPeak;
int m_diffGain;
private slots:
void onEndOfTrackChange(double v);
void onMarkChanged(double v);
void onMarkRangeChange(double v);
void slotWaveformSummaryUpdated();
void slotAnalyserProgress(int progress);
private:
/** append the waveform overview pixmap according to available data in waveform */
bool drawNextPixmapPart();
void paintText(const QString &text, QPainter *painter);
inline int valueToPosition(float value) const {
return (int)(m_a * value - m_b + 0.5);
}
inline double positionToValue(int position) const {
return ((float)position + m_b) / m_a;
}
const QString m_pGroup;
ConfigObject<ConfigValue>* m_pConfig;
ControlObjectThreadMain* m_endOfTrackControl;
double m_endOfTrack;
ControlObjectThreadMain* m_trackSamplesControl;
ControlObjectThreadMain* m_playControl;
// Current active track
TrackPointer m_pCurrentTrack;
/** True if slider is dragged. Only used when m_bEventWhileDrag is false */
bool m_bDrag;
/** Internal storage of slider position in pixels */
int m_iPos;
QPixmap m_backgroundPixmap;
QString m_backgroundPixmapPath;
QColor m_qColorBackground;
QColor m_endOfTrackColor;
WaveformMarkSet m_marks;
std::vector<WaveformMarkRange> m_markRanges;
/** coefficient value-position linear transposition */
float m_a;
float m_b;
int m_analyserProgress; // in 0.1%
bool m_trackLoaded;
};
#endif
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