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Flowcharts get cubic spline connectors

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This commit is contained in:
Luke Campagnola 2013-02-27 16:42:43 -05:00
parent 83812ad5b8
commit 0642f38657
1 changed files with 33 additions and 13 deletions
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46
pyqtgraph/flowchart/Terminal.py
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@ -521,6 +521,8 @@ class ConnectionItem(GraphicsObject):
self.target = target
self.length = 0
self.hovered = False
self.path = None
self.shapePath = None
#self.line = QtGui.QGraphicsLineItem(self)
self.source.getViewBox().addItem(self)
self.updateLine()
@ -544,13 +546,18 @@ class ConnectionItem(GraphicsObject):
else:
return
self.prepareGeometryChange()
self.resetTransform()
ang = (stop-start).angle(Point(0, 1))
if ang is None:
ang = 0
self.rotate(ang)
self.setPos(start)
self.length = (start-stop).length()
self.path = QtGui.QPainterPath()
self.path.moveTo(start)
self.path.cubicTo(Point(stop.x(), start.y()), Point(start.x(), stop.y()), Point(stop.x(), stop.y()))
self.shapePath = None
#self.resetTransform()
#ang = (stop-start).angle(Point(0, 1))
#if ang is None:
#ang = 0
#self.rotate(ang)
#self.setPos(start)
#self.length = (start-stop).length()
self.update()
#self.line.setLine(start.x(), start.y(), stop.x(), stop.y())
@ -582,12 +589,23 @@ class ConnectionItem(GraphicsObject):
def boundingRect(self):
#return self.line.boundingRect()
px = self.pixelWidth()
return QtCore.QRectF(-5*px, 0, 10*px, self.length)
return self.shape().boundingRect()
##return self.line.boundingRect()
#px = self.pixelWidth()
#return QtCore.QRectF(-5*px, 0, 10*px, self.length)
def viewRangeChanged(self):
self.shapePath = None
self.prepareGeometryChange()
#def shape(self):
#return self.line.shape()
def shape(self):
if self.shapePath is None:
if self.path is None:
return QtGui.QPainterPath()
stroker = QtGui.QPainterPathStroker()
px = self.pixelWidth()
stroker.setWidth(px*8)
self.shapePath = stroker.createStroke(self.path)
return self.shapePath
def paint(self, p, *args):
if self.isSelected():
@ -598,4 +616,6 @@ class ConnectionItem(GraphicsObject):
else:
p.setPen(fn.mkPen(100, 100, 250, width=1))
p.drawLine(0, 0, 0, self.length)
#p.drawLine(0, 0, 0, self.length)
p.drawPath(self.path)