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