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#include "trackautomationview.h"
#include "math.h"
#include <qpainter.h>
#include <qbitmap.h>
#include <qimage.h>
//Added by qt3to4:
#include <QPaintEvent>
#include "track.h"
TrackAutomationView::TrackAutomationView(QWidget *parent, Track *t) : QWidget(parent)
{
printf("created trackautomationview\n");
_t = t;
//show();
}
void TrackAutomationView::paintEvent(QPaintEvent* e)
{
QPainter p(this);
const QRect &r = e->rect();
// temporary solution, audio track drawing moved here.
// best would be to get transparency to work correctly
p.setPen(QPen(Qt::black, 2, Qt::SolidLine));
p.setBrush(Qt::gray);
p.drawRect(r);
int height=r.bottom()-r.top();
if( _t->type()>1) { // audio type
double volume = ((AudioTrack*)_t)->volume();
double dbvolume = (20.0*log10(volume)+60) /70.0; // represent volume between 0 and 1
if (dbvolume < 0) dbvolume =0.0;
printf("height=%d volume=%f dbvolume=%f\n", height, volume, dbvolume);
p.setPen(QPen(Qt::yellow,1,Qt::SolidLine));
p.drawLine(r.left(),r.bottom()-dbvolume*height,r.right(),r.bottom()-dbvolume*height);
}
printf("paintEvent\n");
}
void TrackAutomationView::collectAutomationData()
{
// here we should collect all automation data that is currently selected for viewing and
// prepare an event list that is easy to draw in paintEvent
// the main reason being that the event list in it's entirety likely contains too much data to
// be processed in the paintEvent. Better to preprocess.
// CtrlListList cll =((AudioTrack*)_t)->controller();
// cll.count()
}
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