void ZCircle::display(QPainter *painter, int n, Display_Style style) const
{
UNUSED_PARAMETER(style);
#if defined(_QT_GUI_USED_)
double adjustedRadius = m_r + m_defaultPenWidth * 0.5;
QRectF rect;
if (hasVisualEffect(VE_BOUND_BOX)) {
rect.setLeft(m_center.x() - adjustedRadius);
rect.setTop(m_center.y() - adjustedRadius);
rect.setWidth(adjustedRadius + adjustedRadius);
rect.setHeight(adjustedRadius + adjustedRadius);
}
bool visible = false;
if (n == -1) {
visible = true;
} else {
if (isCuttingPlane(m_center.z(), m_r, n)) {
double h = fabs(m_center.z() - n);
if (m_r > h) {
double r = sqrt(m_r * m_r - h * h);
adjustedRadius = r + m_defaultPenWidth * 0.5;
visible = true;
} else { //too small, show at least one plane
adjustedRadius = m_defaultPenWidth * 0.5;
visible = true;
}
}
}
if (visible) {
if (hasVisualEffect(VE_BOUND_BOX)) {
painter->drawRect(rect);
}
if (!hasVisualEffect(VE_NO_CIRCLE)) {
painter->drawEllipse(QPointF(m_center.x(), m_center.y()),
adjustedRadius, adjustedRadius);
}
}
#endif
}
void ZCircle::displayHelper(ZPainter *painter, int stackFocus, EDisplayStyle style) const
{
UNUSED_PARAMETER(style);
#if defined(_QT_GUI_USED_)
double adjustedRadius = getAdjustedRadius(m_r);
double dataFocus = stackFocus - painter->getZOffset();
bool visible = false;
const QBrush &oldBrush = painter->getBrush();
const QPen &oldPen = painter->getPen();
double alpha = oldPen.color().alphaF();
if (stackFocus == -1) {
visible = true;
} else {
if (isCuttingPlane(m_center.z(), m_r, dataFocus, m_zScale)) {
double h = fabs(m_center.z() - dataFocus) / m_zScale;
double r = 0.0;
if (m_r > h) {
r = sqrt(m_r * m_r - h * h);
adjustedRadius = getAdjustedRadius(r);
//adjustedRadius = r + getPenWidth() * 0.5;
visible = true;
} else { //too small, show at least one plane
//adjustedRadius = getPenWidth() * 0.5;
r = 0.1;
adjustedRadius = getAdjustedRadius(r);
visible = true;
}
if (hasVisualEffect(VE_OUT_FOCUS_DIM)) {
alpha *= r * r / m_r / m_r;
//alpha *= alpha;
}
}
}
if (visible) {
if (!hasVisualEffect(VE_NO_CIRCLE)) {
//qDebug() << painter->brush().color();
QColor color = painter->getPenColor();
color.setAlphaF(alpha);
painter->setPen(color);
painter->drawEllipse(QPointF(m_center.x(), m_center.y()),
adjustedRadius, adjustedRadius);
}
}
if (hasVisualEffect(VE_BOUND_BOX)) {
QRectF rect;
double halfSize = adjustedRadius;
if (m_usingCosmeticPen) {
halfSize += 0.5;
}
rect.setLeft(m_center.x() - halfSize);
rect.setTop(m_center.y() - halfSize);
rect.setWidth(halfSize * 2);
rect.setHeight(halfSize * 2);
painter->setBrush(Qt::NoBrush);
QPen pen = oldPen;
if (visible) {
pen.setStyle(Qt::SolidLine);
} else {
pen.setStyle(Qt::DotLine);
}
pen.setCosmetic(m_usingCosmeticPen);
painter->setPen(pen);
#if 0 //for future versions
QPen pen = oldPen;
QVector<qreal> pattern;
pattern << 1 << 2;
pen.setDashPattern(pattern);
painter->setPen(pen);
painter->drawRect(rect);
pen.setColor(Qt::black);
pen.setDashOffset(1.5);
painter->setPen(pen);
#endif
//QPainter::CompositionMode oldMode = painter->compositionMode();
//painter->setCompositionMode(QPainter::RasterOp_SourceXorDestination);
painter->drawRect(rect);
//painter->setCompositionMode(oldMode);
}
painter->setBrush(oldBrush);
painter->setPen(oldPen);
#endif
}
bool ZCircle::isCuttingPlane(double n, double zScale)
{
return isCuttingPlane(m_center.z(), m_r, n, zScale);
}
