// public
BufferParameters::BufferParameters(int quadrantSegments,
EndCapStyle endCapStyle,
JoinStyle joinStyle,
double mitreLimit)
:
quadrantSegments(DEFAULT_QUADRANT_SEGMENTS),
endCapStyle(CAP_ROUND),
joinStyle(JOIN_ROUND),
mitreLimit(DEFAULT_MITRE_LIMIT),
_isSingleSided(false)
{
setQuadrantSegments(quadrantSegments);
setEndCapStyle(endCapStyle);
setJoinStyle(joinStyle);
setMitreLimit(mitreLimit);
}
void UploadAnimation::paintFrame(Painter &p, style::color color, int x, int y, int outerWidth, int frameMs) {
PainterHighQualityEnabler hq(p);
auto pen = color->p;
pen.setWidth(st::historySendActionUploadStrokeNumerator / st::historySendActionUploadDenominator);
pen.setJoinStyle(Qt::RoundJoin);
pen.setCapStyle(Qt::RoundCap);
p.setPen(pen);
p.setBrush(Qt::NoBrush);
auto progress = frameMs / float64(st::historySendActionUploadDuration);
auto position = QPointF(x + st::historySendActionUploadDelta * progress, y) + st::historySendActionUploadPosition;
auto path = QPainterPath();
path.moveTo(0., -st::historySendActionUploadSizeNumerator / st::historySendActionUploadDenominator);
path.lineTo(st::historySendActionUploadSizeNumerator / st::historySendActionUploadDenominator, 0.);
path.lineTo(0., st::historySendActionUploadSizeNumerator / st::historySendActionUploadDenominator);
p.translate(position);
for (auto i = 0; i != kUploadArrowsCount; ++i) {
p.setOpacity((i == 0) ? progress : (i == kUploadArrowsCount - 1) ? (1. - progress) : 1.);
p.drawPath(path);
position.setX(position.x() + st::historySendActionUploadDelta);
p.translate(st::historySendActionUploadDelta, 0);
}
p.setOpacity(1.);
p.translate(-position);
}
