/usr/lib/python2.7/dist-packages/pyqtgraph/flowchart/library/common.py is in python-pyqtgraph 0.9.10-5.
This file is owned by root:root, with mode 0o644.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 | # -*- coding: utf-8 -*-
from ...Qt import QtCore, QtGui
from ...widgets.SpinBox import SpinBox
#from ...SignalProxy import SignalProxy
from ...WidgetGroup import WidgetGroup
#from ColorMapper import ColorMapper
from ..Node import Node
import numpy as np
from ...widgets.ColorButton import ColorButton
try:
import metaarray
HAVE_METAARRAY = True
except:
HAVE_METAARRAY = False
def generateUi(opts):
"""Convenience function for generating common UI types"""
widget = QtGui.QWidget()
l = QtGui.QFormLayout()
l.setSpacing(0)
widget.setLayout(l)
ctrls = {}
row = 0
for opt in opts:
if len(opt) == 2:
k, t = opt
o = {}
elif len(opt) == 3:
k, t, o = opt
else:
raise Exception("Widget specification must be (name, type) or (name, type, {opts})")
if t == 'intSpin':
w = QtGui.QSpinBox()
if 'max' in o:
w.setMaximum(o['max'])
if 'min' in o:
w.setMinimum(o['min'])
if 'value' in o:
w.setValue(o['value'])
elif t == 'doubleSpin':
w = QtGui.QDoubleSpinBox()
if 'max' in o:
w.setMaximum(o['max'])
if 'min' in o:
w.setMinimum(o['min'])
if 'value' in o:
w.setValue(o['value'])
elif t == 'spin':
w = SpinBox()
w.setOpts(**o)
elif t == 'check':
w = QtGui.QCheckBox()
if 'checked' in o:
w.setChecked(o['checked'])
elif t == 'combo':
w = QtGui.QComboBox()
for i in o['values']:
w.addItem(i)
#elif t == 'colormap':
#w = ColorMapper()
elif t == 'color':
w = ColorButton()
else:
raise Exception("Unknown widget type '%s'" % str(t))
if 'tip' in o:
w.setToolTip(o['tip'])
w.setObjectName(k)
l.addRow(k, w)
if o.get('hidden', False):
w.hide()
label = l.labelForField(w)
label.hide()
ctrls[k] = w
w.rowNum = row
row += 1
group = WidgetGroup(widget)
return widget, group, ctrls
class CtrlNode(Node):
"""Abstract class for nodes with auto-generated control UI"""
sigStateChanged = QtCore.Signal(object)
def __init__(self, name, ui=None, terminals=None):
if ui is None:
if hasattr(self, 'uiTemplate'):
ui = self.uiTemplate
else:
ui = []
if terminals is None:
terminals = {'In': {'io': 'in'}, 'Out': {'io': 'out', 'bypass': 'In'}}
Node.__init__(self, name=name, terminals=terminals)
self.ui, self.stateGroup, self.ctrls = generateUi(ui)
self.stateGroup.sigChanged.connect(self.changed)
def ctrlWidget(self):
return self.ui
def changed(self):
self.update()
self.sigStateChanged.emit(self)
def process(self, In, display=True):
out = self.processData(In)
return {'Out': out}
def saveState(self):
state = Node.saveState(self)
state['ctrl'] = self.stateGroup.state()
return state
def restoreState(self, state):
Node.restoreState(self, state)
if self.stateGroup is not None:
self.stateGroup.setState(state.get('ctrl', {}))
def hideRow(self, name):
w = self.ctrls[name]
l = self.ui.layout().labelForField(w)
w.hide()
l.hide()
def showRow(self, name):
w = self.ctrls[name]
l = self.ui.layout().labelForField(w)
w.show()
l.show()
class PlottingCtrlNode(CtrlNode):
"""Abstract class for CtrlNodes that can connect to plots."""
def __init__(self, name, ui=None, terminals=None):
#print "PlottingCtrlNode.__init__ called."
CtrlNode.__init__(self, name, ui=ui, terminals=terminals)
self.plotTerminal = self.addOutput('plot', optional=True)
def connected(self, term, remote):
CtrlNode.connected(self, term, remote)
if term is not self.plotTerminal:
return
node = remote.node()
node.sigPlotChanged.connect(self.connectToPlot)
self.connectToPlot(node)
def disconnected(self, term, remote):
CtrlNode.disconnected(self, term, remote)
if term is not self.plotTerminal:
return
remote.node().sigPlotChanged.disconnect(self.connectToPlot)
self.disconnectFromPlot(remote.node().getPlot())
def connectToPlot(self, node):
"""Define what happens when the node is connected to a plot"""
raise Exception("Must be re-implemented in subclass")
def disconnectFromPlot(self, plot):
"""Define what happens when the node is disconnected from a plot"""
raise Exception("Must be re-implemented in subclass")
def process(self, In, display=True):
out = CtrlNode.process(self, In, display)
out['plot'] = None
return out
def metaArrayWrapper(fn):
def newFn(self, data, *args, **kargs):
if HAVE_METAARRAY and (hasattr(data, 'implements') and data.implements('MetaArray')):
d1 = fn(self, data.view(np.ndarray), *args, **kargs)
info = data.infoCopy()
if d1.shape != data.shape:
for i in range(data.ndim):
if 'values' in info[i]:
info[i]['values'] = info[i]['values'][:d1.shape[i]]
return metaarray.MetaArray(d1, info=info)
else:
return fn(self, data, *args, **kargs)
return newFn
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