ASCEE/pyqtgraph
5
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Cleaned up parametertree example

Browse Source
This commit is contained in:
Luke Campagnola 2012-07-09 17:14:41 -04:00
parent 2213dea9d8
commit 4384944952
5 changed files with 168 additions and 134 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
examples/__main__.py
View File

@ -11,7 +11,7 @@ examples = OrderedDict([
('Command-line usage', 'CLIexample.py'),
('Basic Plotting', 'Plotting.py'),
('ImageView', 'ImageView.py'),
('ParameterTree', '../parametertree'),
('ParameterTree', 'parametertree.py'),
('Crosshair / Mouse interaction', 'crosshair.py'),
('Video speed test', 'VideoSpeedTest.py'),
('Plot speed test', 'PlotSpeedTest.py'),

160
examples/parametertree.py Normal file
View File

@ -0,0 +1,160 @@
# -*- coding: utf-8 -*-
"""
This example demonstrates the use of pyqtgraph's parametertree system. This provides
a simple way to generate user interfaces that control sets of parameters. The example
demonstrates a variety of different parameter types (int, float, list, etc.)
as well as some customized parameter types
"""
import initExample ## Add path to library (just for examples; you do not need this)
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import collections
app = QtGui.QApplication([])
import pyqtgraph.parametertree.parameterTypes as pTypes
from pyqtgraph.parametertree import Parameter, ParameterTree, ParameterItem, registerParameterType
## test subclassing parameters
## This parameter automatically generates two child parameters which are always reciprocals of each other
class ComplexParameter(pTypes.GroupParameter):
def __init__(self, **opts):
opts['type'] = 'bool'
opts['value'] = True
pTypes.GroupParameter.__init__(self, **opts)
self.addChild({'name': 'A = 1/B', 'type': 'float', 'value': 7, 'suffix': 'Hz', 'siPrefix': True})
self.addChild({'name': 'B = 1/A', 'type': 'float', 'value': 1/7., 'suffix': 's', 'siPrefix': True})
self.a = self.param('A = 1/B')
self.b = self.param('B = 1/A')
self.a.sigValueChanged.connect(self.aChanged)
self.b.sigValueChanged.connect(self.bChanged)
def aChanged(self):
self.b.setValue(1.0 / self.a.value(), blockSignal=self.bChanged)
def bChanged(self):
self.a.setValue(1.0 / self.b.value(), blockSignal=self.aChanged)
## test add/remove
## this group includes a menu allowing the user to add new parameters into its child list
class ScalableGroup(pTypes.GroupParameter):
def __init__(self, **opts):
opts['type'] = 'group'
opts['addText'] = "Add"
opts['addList'] = ['str', 'float', 'int']
pTypes.GroupParameter.__init__(self, **opts)
def addNew(self, typ):
val = {
'str': '',
'float': 0.0,
'int': 0
}[typ]
self.addChild(dict(name="ScalableParam %d" % (len(self.childs)+1), type=typ, value=val, removable=True, renamable=True))
## test column spanning (widget sub-item that spans all columns)
class TextParameterItem(pTypes.WidgetParameterItem):
def __init__(self, param, depth):
pTypes.WidgetParameterItem.__init__(self, param, depth)
self.subItem = QtGui.QTreeWidgetItem()
self.addChild(self.subItem)
def treeWidgetChanged(self):
self.treeWidget().setFirstItemColumnSpanned(self.subItem, True)
self.treeWidget().setItemWidget(self.subItem, 0, self.textBox)
self.setExpanded(True)
def makeWidget(self):
self.textBox = QtGui.QTextEdit()
self.textBox.setMaximumHeight(100)
self.textBox.value = lambda: str(self.textBox.toPlainText())
self.textBox.setValue = self.textBox.setPlainText
self.textBox.sigChanged = self.textBox.textChanged
return self.textBox
class TextParameter(Parameter):
type = 'text'
itemClass = TextParameterItem
registerParameterType('text', TextParameter)
params = [
{'name': 'Basic parameter data types', 'type': 'group', 'children': [
{'name': 'Integer', 'type': 'int', 'value': 10},
{'name': 'Float', 'type': 'float', 'value': 10.5, 'step': 0.1},
{'name': 'String', 'type': 'str', 'value': "hi"},
{'name': 'List', 'type': 'list', 'values': [1,2,3], 'value': 2},
{'name': 'Named List', 'type': 'list', 'values': {"one": 1, "two": 2, "three": 3}, 'value': 2},
{'name': 'Boolean', 'type': 'bool', 'value': True, 'tip': "This is a checkbox"},
{'name': 'Color', 'type': 'color', 'value': "FF0", 'tip': "This is a color button"},
{'name': 'Subgroup', 'type': 'group', 'children': [
{'name': 'Sub-param 1', 'type': 'int', 'value': 10},
{'name': 'Sub-param 2', 'type': 'float', 'value': 1.2e6},
]},
]},
{'name': 'Numerical Parameter Options', 'type': 'group', 'children': [
{'name': 'Units + SI prefix', 'type': 'float', 'value': 1.2e-6, 'step': 1e-6, 'siPrefix': True, 'suffix': 'V'},
{'name': 'Limits (min=7;max=15)', 'type': 'int', 'value': 11, 'limits': (7, 15), 'default': -6},
{'name': 'DEC stepping', 'type': 'float', 'value': 1.2e6, 'dec': True, 'step': 1, 'siPrefix': True, 'suffix': 'Hz'},
]},
{'name': 'Extra Parameter Options', 'type': 'group', 'children': [
{'name': 'Read-only', 'type': 'float', 'value': 1.2e6, 'siPrefix': True, 'suffix': 'Hz', 'readonly': True},
{'name': 'Renamable', 'type': 'float', 'value': 1.2e6, 'siPrefix': True, 'suffix': 'Hz', 'renamable': True},
{'name': 'Removable', 'type': 'float', 'value': 1.2e6, 'siPrefix': True, 'suffix': 'Hz', 'removable': True},
]},
ComplexParameter(name='Custom parameter group (reciprocal values)'),
ScalableGroup(name="Expandable Parameter Group", children=[
{'name': 'ScalableParam 1', 'type': 'str', 'value': "default param 1"},
{'name': 'ScalableParam 2', 'type': 'str', 'value': "default param 2"},
]),
{'name': 'Custom parameter class (text box)', 'type': 'text', 'value': 'Some text...'},
]
## Create tree of Parameter objects
p = Parameter(name='params', type='group', children=params)
## If anything changes in the tree, print a message
def change(param, changes):
print("tree changes:")
for param, change, data in changes:
path = p.childPath(param)
if path is not None:
childName = '.'.join(path)
else:
childName = param.name()
print(' parameter: %s'% childName)
print(' change: %s'% change)
print(' data: %s'% str(data))
print(' ----------')
p.sigTreeStateChanged.connect(change)
## Create two ParameterTree widgets, both accessing the same data
t = ParameterTree()
t.setParameters(p, showTop=False)
t.show()
t.resize(400,600)
t2 = ParameterTree()
t2.setParameters(p, showTop=False)
t2.show()
t2.resize(400,600)
## Start Qt event loop unless running in interactive mode or using pyside.
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()

7
parametertree/Parameter.py
View File

@ -131,11 +131,16 @@ class Parameter(QtCore.QObject):
return name
def childPath(self, child):
"""Return the path of parameter names from self to child."""
"""
Return the path of parameter names from self to child.
If child is not a (grand)child of self, return None.
"""
path = []
while child is not self:
path.insert(0, child.name())
child = child.parent()
if child is None:
return None
return path
def setValue(self, value, blockSignal=None):

132
parametertree/__main__.py
View File

@ -1,132 +0,0 @@
## tests for ParameterTree
## make sure pyqtgraph is in path
import sys,os
md = os.path.abspath(os.path.dirname(__file__))
sys.path.append(os.path.join(md, '..', '..'))
from pyqtgraph.Qt import QtCore, QtGui
import collections
app = QtGui.QApplication([])
import pyqtgraph.parametertree.parameterTypes as pTypes
from pyqtgraph.parametertree import Parameter, ParameterTree, ParameterItem, registerParameterType
## test subclassing parameters
## This parameter automatically generates two child parameters which are always reciprocals of each other
class ComplexParameter(Parameter):
def __init__(self, **opts):
opts['type'] = 'bool'
opts['value'] = True
Parameter.__init__(self, **opts)
self.addChild({'name': 'A = 1/B', 'type': 'float', 'value': 7, 'suffix': 'Hz', 'siPrefix': True})
self.addChild({'name': 'B = 1/A', 'type': 'float', 'value': 1/7., 'suffix': 's', 'siPrefix': True})
self.a = self.param('A = 1/B')
self.b = self.param('B = 1/A')
self.a.sigValueChanged.connect(self.aChanged)
self.b.sigValueChanged.connect(self.bChanged)
def aChanged(self):
self.b.setValue(1.0 / self.a.value(), blockSignal=self.bChanged)
def bChanged(self):
self.a.setValue(1.0 / self.b.value(), blockSignal=self.aChanged)
## test add/remove
## this group includes a menu allowing the user to add new parameters into its child list
class ScalableGroup(pTypes.GroupParameter):
def __init__(self, **opts):
opts['type'] = 'group'
opts['addText'] = "Add"
opts['addList'] = ['str', 'float', 'int']
pTypes.GroupParameter.__init__(self, **opts)
def addNew(self, typ):
val = {
'str': '',
'float': 0.0,
'int': 0
}[typ]
self.addChild(dict(name="ScalableParam %d" % (len(self.childs)+1), type=typ, value=val, removable=True, renamable=True))
## test column spanning (widget sub-item that spans all columns)
class TextParameterItem(pTypes.WidgetParameterItem):
def __init__(self, param, depth):
pTypes.WidgetParameterItem.__init__(self, param, depth)
self.subItem = QtGui.QTreeWidgetItem()
self.addChild(self.subItem)
def treeWidgetChanged(self):
self.treeWidget().setFirstItemColumnSpanned(self.subItem, True)
self.treeWidget().setItemWidget(self.subItem, 0, self.textBox)
self.setExpanded(True)
def makeWidget(self):
self.textBox = QtGui.QTextEdit()
self.textBox.setMaximumHeight(100)
self.textBox.value = lambda: str(self.textBox.toPlainText())
self.textBox.setValue = self.textBox.setPlainText
self.textBox.sigChanged = self.textBox.textChanged
return self.textBox
class TextParameter(Parameter):
type = 'text'
itemClass = TextParameterItem
registerParameterType('text', TextParameter)
params = [
{'name': 'Group 0', 'type': 'group', 'children': [
{'name': 'Param 1', 'type': 'int', 'value': 10},
{'name': 'Param 2', 'type': 'float', 'value': 10},
]},
{'name': 'Group 1', 'type': 'group', 'children': [
{'name': 'Param 1.1', 'type': 'float', 'value': 1.2e-6, 'dec': True, 'siPrefix': True, 'suffix': 'V'},
{'name': 'Param 1.2', 'type': 'float', 'value': 1.2e6, 'dec': True, 'siPrefix': True, 'suffix': 'Hz'},
{'name': 'Group 1.3', 'type': 'group', 'children': [
{'name': 'Param 1.3.1', 'type': 'int', 'value': 11, 'limits': (-7, 15), 'default': -6},
{'name': 'Param 1.3.2', 'type': 'float', 'value': 1.2e6, 'dec': True, 'siPrefix': True, 'suffix': 'Hz', 'readonly': True},
]},
{'name': 'Param 1.4', 'type': 'str', 'value': "hi"},
{'name': 'Param 1.5', 'type': 'list', 'values': [1,2,3], 'value': 2},
{'name': 'Param 1.6', 'type': 'list', 'values': {"one": 1, "two": 2, "three": 3}, 'value': 2},
ComplexParameter(name='ComplexParam'),
ScalableGroup(name="ScalableGroup", children=[
{'name': 'ScalableParam 1', 'type': 'str', 'value': "hi"},
{'name': 'ScalableParam 2', 'type': 'str', 'value': "hi"},
])
]},
{'name': 'Param 5', 'type': 'bool', 'value': True, 'tip': "This is a checkbox"},
{'name': 'Param 6', 'type': 'color', 'value': "FF0", 'tip': "This is a color button. It cam be renamed.", 'renamable': True},
{'name': 'TextParam', 'type': 'text', 'value': 'Some text...'},
]
#p = pTypes.ParameterSet("params", params)
p = Parameter(name='params', type='group', children=params)
def change(param, changes):
print("tree changes:")
for param, change, data in changes:
print(" [" + '.'.join(p.childPath(param))+ "] ", change, data)
p.sigTreeStateChanged.connect(change)
t = ParameterTree()
t.setParameters(p, showTop=False)
t.show()
t.resize(400,600)
t2 = ParameterTree()
t2.setParameters(p, showTop=False)
t2.show()
t2.resize(400,600)
import sys
if sys.flags.interactive == 0:
app.exec_()

1
parametertree/parameterTypes.py
View File

@ -348,6 +348,7 @@ class GroupParameterItem(ParameterItem):
def treeWidgetChanged(self):
ParameterItem.treeWidgetChanged(self)
self.treeWidget().setFirstItemColumnSpanned(self, True)
if self.addItem is not None:
self.treeWidget().setItemWidget(self.addItem, 0, self.addWidgetBox)
self.treeWidget().setFirstItemColumnSpanned(self.addItem, True)