void QSegmentWidget::DrawCylinder(const Cylinder &cyl,
const SegmentList &s, const bool erase)
{
if (!m_pixmap)
InitPixmap();
qreal border = 0;
QPainter painter(m_pixmap);
painter.setRenderHint(QPainter::Antialiasing);
painter.setRenderHint(QPainter::SmoothPixmapTransform);
painter.setWindow( -(BM_OSIZE / 2), -(BM_OSIZE / 2),
BM_OSIZE, BM_OSIZE);
QRectF rco(-cyl.outerRadius, -cyl.outerRadius, (cyl.outerRadius * 2.0)+border,
(cyl.outerRadius * 2.0)+border);
QRectF rci(-cyl.innerRadius, -cyl.innerRadius, (cyl.innerRadius * 2.0)+border,
(cyl.innerRadius * 2.0)+border);
QRegion ro(rco.toRect(), QRegion::Rectangle);
QRegion ri(rci.toRect(), QRegion::Ellipse);
QRegion region = ro.subtracted(ri);
painter.setClipRegion(region);
if (erase) {
painter.setBrush(Qt::NoBrush);
painter.setPen(Qt::NoPen);
} else {
QBrush b(cyl.color);
painter.setBrush(b);
painter.setPen(QPen(cyl.color.darker(200),border));
}
DrawSegments(&painter, s, cyl.outerRadius);
}
Pixmap* PixmapFromSdlSurface(SDL_Surface* sf) {
Pixmap* p = InitPixmap(sf->w,sf->h,1,8*sf->pitch/sf->w);
// memcpy(p->data,sf->pixels,sf->pitch*sf->h);
free(p->data);
p->data=sf->pixels;
return p;
}
void QSegmentWidget::paintEvent(QPaintEvent *)
{
if (!m_pixmap)
InitPixmap();
QPainter painter(this);
int side = qMin(width(), height());
painter.setViewport((width() - side) / 2, (height() - side) / 2,
side, side);
painter.setWindow(0, 0, BM_OSIZE, BM_OSIZE);
painter.drawPixmap(0, 0, *m_pixmap);
// QPainter paint(m_pixmap);
DrawCenterText(&painter);
}
