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ArrowItem: rotate painterpath instead of the item

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This makes it easier to attach text to the arrow.
This commit is contained in:
Luke Campagnola 2017-09-15 09:09:45 -07:00
parent 9d0779cc32
commit ea9e8a720b
1 changed files with 6 additions and 3 deletions
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7
pyqtgraph/graphicsItems/ArrowItem.py
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@ -39,7 +39,6 @@ class ArrowItem(QtGui.QGraphicsPathItem):
self.setStyle(**defaultOpts) self.setStyle(**defaultOpts)
self.rotate(self.opts['angle'])
self.moveBy(*self.opts['pos']) self.moveBy(*self.opts['pos'])
def setStyle(self, **opts): def setStyle(self, **opts):
@ -72,7 +71,10 @@ class ArrowItem(QtGui.QGraphicsPathItem):
self.opts.update(opts) self.opts.update(opts)
opt = dict([(k,self.opts[k]) for k in ['headLen', 'tipAngle', 'baseAngle', 'tailLen', 'tailWidth']]) opt = dict([(k,self.opts[k]) for k in ['headLen', 'tipAngle', 'baseAngle', 'tailLen', 'tailWidth']])
self.path = fn.makeArrowPath(**opt) tr = QtGui.QTransform()
tr.rotate(self.opts['angle'])
self.path = tr.map(fn.makeArrowPath(**opt))
self.setPath(self.path) self.setPath(self.path)
self.setPen(fn.mkPen(self.opts['pen'])) self.setPen(fn.mkPen(self.opts['pen']))
@ -83,6 +85,7 @@ class ArrowItem(QtGui.QGraphicsPathItem):
else: else:
self.setFlags(self.flags() & ~self.ItemIgnoresTransformations) self.setFlags(self.flags() & ~self.ItemIgnoresTransformations)
def paint(self, p, *args): def paint(self, p, *args):
p.setRenderHint(QtGui.QPainter.Antialiasing) p.setRenderHint(QtGui.QPainter.Antialiasing)
QtGui.QGraphicsPathItem.paint(self, p, *args) QtGui.QGraphicsPathItem.paint(self, p, *args)