/usr/lib/python2.7/dist-packages/pyqtgraph/graphicsItems/VTickGroup.py is in python-pyqtgraph 0.9.10-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | if __name__ == '__main__':
import os, sys
path = os.path.abspath(os.path.dirname(__file__))
sys.path.insert(0, os.path.join(path, '..', '..'))
from ..Qt import QtGui, QtCore
from .. import functions as fn
import weakref
from .UIGraphicsItem import UIGraphicsItem
__all__ = ['VTickGroup']
class VTickGroup(UIGraphicsItem):
"""
**Bases:** :class:`UIGraphicsItem <pyqtgraph.UIGraphicsItem>`
Draws a set of tick marks which always occupy the same vertical range of the view,
but have x coordinates relative to the data within the view.
"""
def __init__(self, xvals=None, yrange=None, pen=None):
"""
============== ===================================================================
**Arguments:**
xvals A list of x values (in data coordinates) at which to draw ticks.
yrange A list of [low, high] limits for the tick. 0 is the bottom of
the view, 1 is the top. [0.8, 1] would draw ticks in the top
fifth of the view.
pen The pen to use for drawing ticks. Default is grey. Can be specified
as any argument valid for :func:`mkPen<pyqtgraph.mkPen>`
============== ===================================================================
"""
if yrange is None:
yrange = [0, 1]
if xvals is None:
xvals = []
UIGraphicsItem.__init__(self)
if pen is None:
pen = (200, 200, 200)
self.path = QtGui.QGraphicsPathItem()
self.ticks = []
self.xvals = []
self.yrange = [0,1]
self.setPen(pen)
self.setYRange(yrange)
self.setXVals(xvals)
def setPen(self, *args, **kwargs):
"""Set the pen to use for drawing ticks. Can be specified as any arguments valid
for :func:`mkPen<pyqtgraph.mkPen>`"""
self.pen = fn.mkPen(*args, **kwargs)
def setXVals(self, vals):
"""Set the x values for the ticks.
============== =====================================================================
**Arguments:**
vals A list of x values (in data/plot coordinates) at which to draw ticks.
============== =====================================================================
"""
self.xvals = vals
self.rebuildTicks()
#self.valid = False
def setYRange(self, vals):
"""Set the y range [low, high] that the ticks are drawn on. 0 is the bottom of
the view, 1 is the top."""
self.yrange = vals
self.rebuildTicks()
def dataBounds(self, *args, **kargs):
return None ## item should never affect view autoscaling
def yRange(self):
return self.yrange
def rebuildTicks(self):
self.path = QtGui.QPainterPath()
yrange = self.yRange()
for x in self.xvals:
self.path.moveTo(x, 0.)
self.path.lineTo(x, 1.)
def paint(self, p, *args):
UIGraphicsItem.paint(self, p, *args)
br = self.boundingRect()
h = br.height()
br.setY(br.y() + self.yrange[0] * h)
br.setHeight(h - (1.0-self.yrange[1]) * h)
p.translate(0, br.y())
p.scale(1.0, br.height())
p.setPen(self.pen)
p.drawPath(self.path)
|