def bgc_name_face(node, *args, **kargs):
"""
This is the item generator. It must receive a node object, and
returns a Qt4 graphics item that can be used as a node face.
"""
# Receive an arbitrary number of arguments, in this case width and
# Height of the faces and the information about the BGC
width = args[0]
height = args[1]
# Add the popup
interactive_face = InteractiveItem("Class : {}\nRelated MIBiG : {}\nCluster family : {}".format(args[2], args[4], args[3]), 0, 0, width, height)
# Keep a link within the item to access node info
interactive_face.node = node
# Remove border around the masterItem
interactive_face.setPen(QPen(QtCore.Qt.NoPen))
# Add ellipse around text
ellipse = QGraphicsEllipseItem(interactive_face.rect())
ellipse.setParentItem(interactive_face)
# Change ellipse color
ellipse.setBrush(QBrush(QColor(args[6])))
# Add node name within the ellipse
text = QGraphicsTextItem(args[5])
text.setTextWidth(50)
text.setParentItem(ellipse)
# Center text according to masterItem size
text_width = text.boundingRect().width()
text_height = text.boundingRect().height()
center = interactive_face.boundingRect().center()
text.setPos(center.x()-text_width/2, center.y()-text_height/2)
return interactive_face
def iLabel(node, *args, **kargs):
#code for making specialized faces for intermediates mostly cribbed from the ete2 website example (though not interactive):
# http://pythonhosted.org/ete2/tutorial/tutorial_drawing.html#creating-your-custom-interactive-item-faces
my_label = node.name
ellipse = QGraphicsEllipseItem(
0, 0, fontSize * 2, fontSize * 2
) #I think the first two are coords of center; second pair is major/minor axis
ellipse.setPen(QPen(QColor('black')))
ellipse.setBrush(QBrush(QColor('white')))
text = QGraphicsSimpleTextItem(my_label)
text.setParentItem(ellipse)
text.setBrush(QBrush(QColor("black")))
font = QFont("Arial", fontSize * .9, weight=80)
font.setLetterSpacing(1, 2) #add 2 pixels between letters for legibility
text.setFont(font)
#Center text according to masterItem size
tw = text.boundingRect().width()
th = text.boundingRect().height()
center = ellipse.boundingRect().center()
text.setPos(
center.x() + 1 - tw / 2,
center.y() - th / 2
) #since the last letter has an extra 2 pixels after it from the spacing command, adjust center to compensate
return ellipse
def test_anchoritem(self):
anchoritem = NodeAnchorItem(None)
self.scene.addItem(anchoritem)
path = QPainterPath()
path.addEllipse(0, 0, 100, 100)
anchoritem.setAnchorPath(path)
anchor = AnchorPoint()
anchoritem.addAnchor(anchor)
ellipse1 = QGraphicsEllipseItem(-3, -3, 6, 6)
ellipse2 = QGraphicsEllipseItem(-3, -3, 6, 6)
self.scene.addItem(ellipse1)
self.scene.addItem(ellipse2)
anchor.scenePositionChanged.connect(ellipse1.setPos)
with self.assertRaises(ValueError):
anchoritem.addAnchor(anchor)
anchor1 = AnchorPoint()
anchoritem.addAnchor(anchor1)
anchor1.scenePositionChanged.connect(ellipse2.setPos)
self.assertSequenceEqual(anchoritem.anchorPoints(), [anchor, anchor1])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.5])
anchoritem.setAnchorPositions([0.5, 0.0])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.0])
def advance():
t = anchoritem.anchorPositions()
t = [(t + 0.05) % 1.0 for t in t]
anchoritem.setAnchorPositions(t)
self.singleShot(20, advance)
advance()
self.app.exec_()
def constructPieChart(self, distrib, numbs):
pie = QGraphicsItemGroup()
totArc = 0
for j, num, dist in reversed(zip(range(len(numbs)), numbs, distrib)):
arc = QGraphicsEllipseItem(-self.pieWidth/2, -self.pieWidth/2, self.pieWidth, self.pieHeight)
arc.setPen(QPen(QColor(0, 0, 0), 1, Qt.SolidLine))
arc.setBrush(QBrush(self.discPalette[j]))
arc.setToolTip("%s: %.3f" % (self.attributes[self.selectedAttributes[j]][0], num) + (" (%2.1f%%)" % (dist/self.barHeight*100) if self.normalize else ""))
arc.setStartAngle(totArc)
arc.setSpanAngle(dist * 2880 / self.barHeight)
pie.addToGroup(arc)
totArc += dist * 2880 / self.barHeight
return pie
def __init__(self,
pen=QPen(Qt.black),
brush=QBrush(Qt.NoBrush),
xCenter=0.0,
yCenter=0.0,
radius=1.0):
OWCurve.__init__(self)
self._item = QGraphicsEllipseItem(self)
self.center = xCenter, yCenter
self.radius = radius
self._rect = QRectF(xCenter - radius, yCenter - radius, 2 * radius,
2 * radius)
self.set_pen(pen)
self.set_brush(brush)
def ugly_name_face(node, *args, **kargs):
""" This is my item generator. It must receive a node object, and
returns a Qt4 graphics item that can be used as a node face.
"""
# receive an arbitrary number of arguments, in this case width and
# height of the faces
width = args[0][0]
height = args[0][1]
## Creates a main master Item that will contain all other elements
## Items can be standard QGraphicsItem
# masterItem = QGraphicsRectItem(0, 0, width, height)
# Or your custom Items, in which you can re-implement interactive
# functions, etc. Check QGraphicsItem doc for details.
masterItem = InteractiveItem(0, 0, width, height)
# Keep a link within the item to access node info
masterItem.node = node
# I dont want a border around the masterItem
masterItem.setPen(QPen(QtCore.Qt.NoPen))
# Add ellipse around text
ellipse = QGraphicsEllipseItem(masterItem.rect())
ellipse.setParentItem(masterItem)
# Change ellipse color
ellipse.setBrush(QBrush(QColor(random_color())))
# Add node name within the ellipse
text = QGraphicsSimpleTextItem(node.name)
text.setParentItem(ellipse)
text.setPen(QPen(QPen(QColor("white"))))
# Center text according to masterItem size
tw = text.boundingRect().width()
th = text.boundingRect().height()
center = masterItem.boundingRect().center()
text.setPos(center.x() - tw / 2, center.y() - th / 2)
return masterItem
def iLabel(node, *args, **kargs):
#code for making specialized faces for intermediates mostly cribbed from the ete2 website example (though not interactive):
# http://pythonhosted.org/ete2/tutorial/tutorial_drawing.html#creating-your-custom-interactive-item-faces
my_label = args[0][0] #or maybe just node.name?
ellipse = QGraphicsEllipseItem(
0, 0, fontSize * 2, fontSize * 2
) #I think the first two are coords of center; second pair is major/minor axis
ellipse.setBrush(QBrush(QColor('black')))
text = QGraphicsSimpleTextItem(my_label)
text.setParentItem(ellipse)
text.setBrush(QBrush(QColor("white")))
text.setFont(QFont("Arial", fontSize * .75))
#Center text according to masterItem size
tw = text.boundingRect().width()
th = text.boundingRect().height()
center = ellipse.boundingRect().center()
text.setPos(center.x() - tw / 2, center.y() - th / 2)
return ellipse
