I don’t remember the exact circumstances when Maya decides to do it for you
or not, but you could explicitly define an undo chunk:
cmds.undoInfo(openChunk=True)try:
testLoop()finally:
cmds.undoInfo(closeChunk=True)
On Sat Dec 20 2014 at 8:21:33 AM ynedelin <[email protected]> wrote:
>
> Hey Guys
> I was wondering if anyone have seen this behavior.
>
> I have this small function
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> *""" test undo with QT """import maya.cmds as mcdef testLoop(): sel =
> mc.ls <http://mc.ls>(sl=1) for node in sel: mc.move(1,1,1, node,
> relative=1)*
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> If I run this on a selection of nodes from script editor I can undo the
> whole function with a single undo
>
> but
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> if I run this from a pyside button I have to undo every 'move' command so
> if there are 10 selected objects I have to run undo 10 times.
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> What am I doing wrong?
>
> Thanks a lot.
> here is my UI script
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> *from PySide import QtCore, QtGui, QtUiToolsfrom shiboken import
> wrapInstanceimport maya.OpenMayaUI as omuiimport pysideuicimport maya.cmds
> as mcimport os, sys, inspectimport testUndo as TfilePath =
> os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))uiFile
> = os.path.join( filePath , "testUndo.ui")main_window_ptr =
> omui.MQtUtil.mainWindow()_parentWindow =
> wrapInstance(long(main_window_ptr), QtGui.QWidget)class
> UiLoader(QtUiTools.QUiLoader): def __init__(self, baseinstance):
> QtUiTools.QUiLoader.__init__(self, baseinstance) self.baseinstance =
> baseinstance def createWidget(self, class_name, parent=None,
> name=''): if parent is None and self.baseinstance: return
> self.baseinstance else: widget =
> QtUiTools.QUiLoader.createWidget(self, class_name, parent, name)
> if self.baseinstance: setattr(self.baseinstance, name,
> widget) return widgetdef loadUi(uifile, baseinstance=None):
> loader = UiLoader(baseinstance) widget = loader.load(uifile)
> QtCore.QMetaObject.connectSlotsByName(widget) return widgetclass
> TestUndoWindow(QtGui.QMainWindow): def __init__(self, parent =
> None): QtGui.QMainWindow.__init__(self, parent=_parentWindow)
> loadUi(uiFile, self) def establishConnections(self):
> self.testUndo_btn.clicked.connect(self.testUndo) def
> testUndo(self): T.testLoop()*
>
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