def _add_time_point(self, center_x, center_y, time_point):
"""Add a single time point item."""
x = center_x - (self.TIMEPOINT_DIAMETER / 2)
y = center_y - (self.TIMEPOINT_DIAMETER / 2)
# Create the acutal time point item
time_point_item = QGraphicsEllipseItem(0, 0, self.TIMEPOINT_DIAMETER,
self.TIMEPOINT_DIAMETER)
# The used color is the strongest one of the FRM II colors.
time_point_item.setBrush(QBrush(QColor(0x00, 0x71, 0xbb)))
time_point_item.setPen(QPen(0))
self.scene().addItem(time_point_item)
time_point_item.setPos(x, y)
# place the time point item above the timeline and the selection item
time_point_item.setZValue(2)
# Create the label of the time point showing the time in the
# defined strftime format on the right side of the time point item.
label = QGraphicsTextItem(time_point.strftime(self.STRFTIME_FMT))
label.setFont(QFont('Monospace'))
label_height = label.boundingRect().height()
# minor height adjustment
label_y = y - label_height / 6
self.scene().addItem(label)
label.setPos(x + self.SELECTION_DIAMETER + self.LABEL_SPACING, label_y)
# store references to the item and the timepoint in the same dict
# to be able to use it for forward and reverse lookup
self._time_point_items[time_point] = time_point_item
self._time_point_items[time_point_item] = time_point
class DetTable(TableBase):
"""Class to display the detector including shielding and detector tube."""
_color = QColor('#ff66ff')
def __init__(self, x, y, size=20, parent=None, scene=None):
TableBase.__init__(self, x, y, size, parent, scene)
self._halowidth = max(size / 4, 10)
self._halo = Halo(x, y, size, self._halowidth, self, scene)
self._tuberadius = size / 5
p = QPointF(self._tuberadius, self._tuberadius)
s = QSizeF(2 * self._tuberadius, 2 * self._tuberadius)
self._tube = QGraphicsEllipseItem(QRectF(-p, s), self)
self._tube.setPen(QPen(QColor('black'), 3))
self._tube.setBrush(QBrush(QColor('white')))
self._tube.setZValue(20)