void TrackView::paintTopMargin(QStylePainter &painter, const QRegion ®ion)
{
const QRect &rect = region.boundingRect();
painter.setClipRect(QRectF(QPointF(0.0f, 0.0f),
QPointF(rect.right() + 1.0f, topMarginHeight - 0.5f)));
QRect topMargin(QPoint(-2, 0),
QPoint(rect.right() + 3, topMarginHeight - 1));
painter.fillRect(topMargin.adjusted(1, 1, -1, -1), palette().button());
qDrawWinButton(&painter, topMargin, palette());
int startTrack = qBound(0, getTrackFromPhysicalX(qMax(rect.left(), leftMarginWidth)), getTrackCount());
int endTrack = qBound(0, getTrackFromPhysicalX(rect.right()) + 1, getTrackCount());
for (int track = startTrack; track < endTrack; ++track) {
const SyncTrack *t = getTrack(track);
QRect topMargin(getPhysicalX(track), 0, trackWidth, topMarginHeight);
if (!region.intersects(topMargin))
continue;
QRect fillRect = topMargin;
QBrush bgBrush = palette().button();
if (track == editTrack)
bgBrush = editBrush;
painter.fillRect(fillRect.adjusted(1, 1, -1, -1), bgBrush);
qDrawWinButton(&painter, fillRect, bgBrush.color());
if (!t->isActive())
painter.setPen(QColor(128, 128, 128));
else
painter.setPen(QColor(0, 0, 0));
painter.drawText(fillRect, t->getDisplayName());
}
// make sure that the top margin isn't overdrawn by the track-data
painter.setClipRegion(QRect(0, topMarginHeight, rect.right() + 1, rect.bottom() + 1));
}
