ParameterItem#

class pyqtgraph.parametertree.ParameterItem(
param,
depth=0,
)[source]#

Abstract ParameterTree item. Used to represent the state of a Parameter from within a ParameterTree.

  • Sets first column of item to name

  • generates context menu if item is renamable or removable

  • handles child added / removed events

  • provides virtual functions for handling changes from parameter

For more ParameterItem types, see ParameterTree.parameterTypes module.

__init__(
param,
depth=0,
)[source]#
columnChangedEvent(
col,
)[source]#

Called when the text in a column has been edited (or otherwise changed). By default, we only use changes to column 0 to rename the parameter.

defaultChanged(
param,
default,
)[source]#

Called when the parameter’s default value has changed

focusNext(
forward=True,
)[source]#

Give focus to the next (or previous) focusable item in the parameter tree

isFocusable()[source]#

Return True if this item should be included in the tab-focus order

limitsChanged(
param,
limits,
)[source]#

Called when the parameter’s limits have changed

optsChanged(
param,
opts,
)[source]#

Called when any options are changed that are not name, value, default, or limits

selected(
sel,
)[source]#

Called when this item has been selected (sel=True) OR deselected (sel=False)

setFocus()[source]#

Give input focus to this item. Can be reimplemented to display editor widgets, etc.

treeWidgetChanged()[source]#

Called when this item is added or removed from a tree. Expansion, visibility, and column widgets must all be configured AFTER the item is added to a tree, not during __init__.