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Fixed ArrowItem auto-range

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This commit is contained in:
Luke Campagnola 2013-02-14 14:22:30 -05:00
parent 815746895d
commit 9c70d948aa
1 changed files with 34 additions and 1 deletions
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35
pyqtgraph/graphicsItems/ArrowItem.py
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@ -84,8 +84,41 @@ class ArrowItem(QtGui.QGraphicsPathItem):
def paint(self, p, *args):
p.setRenderHint(QtGui.QPainter.Antialiasing)
QtGui.QGraphicsPathItem.paint(self, p, *args)
#p.setPen(fn.mkPen('r'))
#p.setBrush(fn.mkBrush(None))
#p.drawRect(self.boundingRect())
def shape(self):
#if not self.opts['pxMode']:
#return QtGui.QGraphicsPathItem.shape(self)
return self.path
return self.path
## dataBounds and pixelPadding methods are provided to ensure ViewBox can
## properly auto-range
def dataBounds(self, ax, frac, orthoRange=None):
pw = 0
pen = self.pen()
if not pen.isCosmetic():
pw = pen.width() * 0.7072
if self.opts['pxMode']:
return [0,0]
else:
br = self.boundingRect()
if ax == 0:
return [br.left()-pw, br.right()+pw]
else:
return [br.top()-pw, br.bottom()+pw]
def pixelPadding(self):
pad = 0
if self.opts['pxMode']:
br = self.boundingRect()
pad += (br.width()**2 + br.height()**2) ** 0.5
pen = self.pen()
if pen.isCosmetic():
pad += max(1, pen.width()) * 0.7072
return pad