void Event::setSndFile(MusECore::SndFileR& sf)
{
if(ev) ev->setSndFile(sf);
#ifdef USE_SAMPLERATE
if(_audConv)
{
if(!sf.isNull())
_audConv->setChannels(sf.channels());
}
else
{
if(ev && !sf.isNull())
_audConv = new SRCAudioConverter(ev->sndFile().channels(), SRC_SINC_MEDIUM_QUALITY);
}
#endif
}
void WaveView::pdraw(QPainter& p, const QRect& rr)
{
int x1 = rr.x();
int x2 = rr.right() + 1;
if (x1 < 0)
x1 = 0;
if (x2 > width())
x2 = width();
int hh = height();
int h = hh/2;
int y = rr.y() + h;
// Added by T356.
int xScale = xmag;
if (xScale < 0)
xScale = -xScale;
for (MusECore::iPart ip = editor->parts()->begin(); ip != editor->parts()->end(); ++ip) {
MusECore::WavePart* wp = (MusECore::WavePart*)(ip->second);
int channels = wp->track()->channels();
int px = wp->frame();
for (MusECore::ciEvent e = wp->events().begin(); e != wp->events().end(); ++e) {
const MusECore::Event event& = e->second;
if (event.empty())
continue;
MusECore::SndFileR f = event.sndFile();
if(f.isNull())
continue;
unsigned peoffset = px + event.frame() - event.spos();
int sx, ex;
sx = event.frame() + px + xScale/2;
ex = sx + event.lenFrame();
sx = sx / xScale - xpos;
ex = ex / xScale - xpos;
if (sx < x1)
sx = x1;
if (ex > x2)
ex = x2;
int pos = (xpos + sx) * xScale + event.spos() - event.frame() - px;
//printf("pos=%d xpos=%d sx=%d ex=%d xScale=%d event.spos=%d event.frame=%d px=%d\n",
// pos, xpos, sx, ex, xScale, event.spos(), event.frame(), px);
h = hh / (channels * 2);
int cc = hh % (channels * 2) ? 0 : 1;
for (int i = sx; i < ex; i++) {
y = rr.y() + h;
MusECore::SampleV sa[f.channels()];
f.read(sa, xScale, pos);
pos += xScale;
if (pos < event.spos())
continue;
int selectionStartPos = selectionStart - peoffset; // Offset transformed to event coords
int selectionStopPos = selectionStop - peoffset;
for (int k = 0; k < channels; ++k) {
int kk = k % f.channels();
int peak = (sa[kk].peak * (h - 1)) / yScale;
int rms = (sa[kk].rms * (h - 1)) / yScale;
if (peak > h)
peak = h;
if (rms > h)
rms = h;
QColor peak_color = QColor(Qt::darkGray);
QColor rms_color = QColor(Qt::black);
// Changed by T356. Reduces (but not eliminates) drawing artifacts.
//if (pos > selectionStartPos && pos < selectionStopPos) {
if (pos > selectionStartPos && pos <= selectionStopPos) {
peak_color = QColor(Qt::lightGray);
rms_color = QColor(Qt::white);
// Draw inverted
p.setPen(QColor(Qt::black));
p.drawLine(i, y - h + cc, i, y + h - cc );
}
p.setPen(peak_color);
p.drawLine(i, y - peak - cc, i, y + peak);
p.setPen(rms_color);
p.drawLine(i, y - rms - cc, i, y + rms);
y += 2 * h;
}
}
}
}
View::pdraw(p, rr);
}
