sample ::
sample(const float* fData, int ln, int rt, int ch): data(0), info(ln,rt,ch) {
data = new audioSample[audioSize()];
for (int i = audioSize() - 1; i >= 0; i--)
data[i] = audioLimit((int) rint(32768.0 * fData[i]));
if (parameters->debug("sample", "basic")) { cerr << "Created: "; print(); }
} // sample constructor (float array)
void sample :: append(const sample& s) {
if (!assertWarning(rate() == s.rate(), "append failed: different rates") ||
!assertWarning(channels() == s.channels(),
"append failed: different channel counts"))
return;
audioSample* snd = new audioSample[audioSize() + s.audioSize()];
memcpy(snd, data, bytes());
memcpy(snd + audioSize(), s.data, s.bytes());
delete[] data;
data = snd;
info.length += s.length();
} // append()
int sample :: diff(const sample& t) const {
if (!assertWarning(rate() == t.rate(),"diff: sample rates") ||
!assertWarning(length() == t.length(),"diff: different lengths") ||
!assertWarning(channels() == t.channels(), "diff: channel counts"))
return 1;
int diffs = 0;
for (int i=0; (i<audioSize()) && (diffs<10); i++)
if (data[i] != t.data[i]) {
if (parameters->debug("sample", "basic"))
cerr << "Data differs at " << i << " of " << audioSize() <<endl;
diffs++;
}
if (parameters->debug("sample", "basic") && !diffs)
cerr << "No diffs" << endl;
return diffs;
} // diffs()
// if (len < 0), fades the beginning -len seconds of the signal (fade in)
// otherwise (len > 0), fades the final len seconds of the signal (fade out)
void sample :: fade(int len, int offset) {
int p, dir;
int ch = channels();
int sz = abs(len) * rate();
// double factor = 0;
double factor = 1.0 / 128.0;
// double change = 1.0 / double(sz);
double change = pow(2.0, 7.0 / double(sz));
if (len < 0) {
if (offset < 0)
p = 0;
else
p = offset;
dir = 1;
if (!assertWarning(p + sz <= audioSize(), "fade.in(): bad parameters"))
return;
} else if (len > 0) {
if (offset < 0)
p = audioSize() - 1;
else
p = offset - 1;
dir = -1;
if (!assertWarning((p - sz >= 0) && (p < audioSize()),
"fade.out(): bad parameters"))
return;
}
for (int i = 0; i < sz; i++) {
for (int j = 0; j < ch; j++) {
data[p] = int(rint(factor * double(data[p])));
p += dir;
}
// factor += change;
factor *= change;
}
} // fade()
void TabListDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
const QWidget *w = option.widget;
const QStyle *style = w ? w->style() : m_view->style();
QStyleOptionViewItem opt = option;
initStyleOption(&opt, index);
m_view->adjustStyleOption(&opt);
const int height = opt.rect.height();
const int center = height / 2 + opt.rect.top();
painter->setRenderHint(QPainter::Antialiasing);
// Draw background
style->drawPrimitive(QStyle::PE_PanelItemViewItem, &opt, painter, w);
// Draw icon
const int iconSize = 16;
const int iconYPos = center - (iconSize / 2);
QRect iconRect(opt.rect.left() + (opt.rect.width() - iconSize) / 2, iconYPos, iconSize, iconSize);
QPixmap pixmap;
if (index.data(TabModel::LoadingRole).toBool()) {
pixmap = m_loadingAnimator->pixmap(index);
} else {
pixmap = index.data(Qt::DecorationRole).value<QIcon>().pixmap(iconSize);
}
painter->drawPixmap(iconRect, pixmap);
// Draw audio icon
const bool audioMuted = index.data(TabModel::AudioMutedRole).toBool();
const bool audioPlaying = index.data(TabModel::AudioPlayingRole).toBool();
if (audioMuted || audioPlaying) {
QSize audioSize(16, 16);
QPoint pos(opt.rect.right() - audioSize.width(), center - audioSize.height() / 2);
QRect audioRect(pos, audioSize);
QColor c = opt.palette.color(QPalette::Window);
c.setAlpha(180);
painter->setPen(c);
painter->setBrush(c);
painter->drawEllipse(audioRect);
painter->drawPixmap(audioRect, audioMuted ? TabIcon::data()->audioMutedPixmap : TabIcon::data()->audioPlayingPixmap);
}
// Draw background activity indicator
const bool backgroundActivity = index.data(TabModel::BackgroundActivityRole).toBool();
if (backgroundActivity) {
QSize activitySize(7, 7);
QPoint pos(iconRect.center().x() - activitySize.width() / 2 + 1, iconRect.bottom() - 2);
QRect activityRect(pos, activitySize);
QColor c1 = opt.palette.color(QPalette::Window);
c1.setAlpha(180);
painter->setPen(Qt::transparent);
painter->setBrush(c1);
painter->drawEllipse(activityRect);
const QRect r2 = activityRect.adjusted(1, 1, -1, -1);
painter->setPen(Qt::transparent);
painter->setBrush(opt.palette.color(QPalette::Text));
painter->drawEllipse(r2);
}
}
foreach(Tag *audio, audios) {
QSize audioSize(audioSpace.width() / 2, audioSpace.height() / qCeil((qreal)audios.count() / 2));
if(audio->player)
audio->player->setGeometry(QRect(audioSpace.topLeft() + QPoint((index % 2) * audioSize.width(), qFloor(index / 2) * audioSize.height()), audioSize));
index++;
}
sample ::
sample(int len, int rt, int ch): data(0), info(len, rt, ch) {
data = new audioSample[audioSize()];
clear();
if (parameters->debug("sample", "basic")) { cerr << "Created: "; print(); }
} // sample constructor (blank)
sample ::
sample(const sample& s) : data(0), info(s.info) {
data = new audioSample[audioSize()];
memcpy(data, s.data, bytes());
if (parameters->debug("sample", "basic")) { cerr << "Created: "; print(); }
} // sample copy constructor