On Thu, Jul 4, 2019 at 6:00 AM likage <dissidia....@gmail.com> wrote:
> Hi everyone, I am trying to make a real-time update, eg. a renaming
> between maya scene and my tool. Previously I made a thread about it, but
> seeing that it is a bit confusing, I have decided to make a new thread and
> repost it with coding on what I am trying to achieve.
>
> Currently I am able to effect changes from my tool and modify the naming
> in the scene. But in the event if I perform an undo in the maya scene
> itself, the undo changes are not effected back into the tool.
>
> Here is my code:
>
> class Example(QtGui.QWidget):
> def __init__(self, parent=None):
> super(Example, self).__init__()
> self.initUI()
> self.setup_connections()
>
> def initUI(self):
> self.setGeometry(300, 300, 300, 200)
> self.setWindowTitle('Rename')
>
> self.list_widget = QtGui.QListWidget()
> self.add_loc_btn = QtGui.QPushButton("Add new Locator")
>
> vlayout = QtGui.QVBoxLayout()
> vlayout.addWidget(self.list_widget)
> vlayout.addWidget(self.add_loc_btn)
> vlayout.addStretch(1)
> self.setLayout(vlayout)
>
> def setup_connections(self):
> self.add_loc_btn.clicked.connect(self.add_locator)
>
> self.list_widget.itemDoubleClicked.connect(self.list_item_dbl_click)
> self.list_widget.itemChanged.connect(self.list_item_click)
>
> def add_locator(self):
> new_loc = cmds.spaceLocator()
> loc_fp = cmds.ls(new_loc[0], long=True)
> loc_item = QtGui.QListWidgetItem(str(new_loc[0]))
> loc_item.setData(32, loc_fp[0])
> loc_item.setFlags(
> loc_item.flags() |
> QtCore.Qt.ItemIsUserCheckable |
> QtCore.Qt.ItemIsEditable
> )
> self.list_widget.addItem(loc_item)
>
> def list_item_dbl_click(self):
> current_item = self.list_widget.currentItem()
> self.prev_name = current_item.text()
> self.rename_counter = 1
>
> def list_item_click(self, test):
> success = False
> current_item = self.list_widget.currentItem()
> list_item_row = self.list_widget.currentRow()
> new_name = current_item.text()
>
> if self.validate_naming(new_name):
> locator = current_item.data(32)
> if cmds.objExists(locator) and self.rename_counter == 1:
> cmds.select(locator)
> cmds.rename(new_name)
>
> # reset counter back to 0
> self.rename_counter = 0
> success = True
>
> else:
> # Set back to its initial naming before rename
> current_item.setText(self.prev_name)
>
> if success:
> list_item = self.list_widget.item(list_item_row)
> self.list_widget.setCurrentItem(list_item)
>
> def validate_naming(self, name_input):
> if re.search("^\s*[0-9]", name_input):
> LOG.warning("Input naming cannot be started off with numbers!")
> return False
> return True
>
>
> myWin = Example()
> myWin.show()
>
> Here are some steps to reproduce:
>
> - Click on the ‘Add new Locator’ button
> - It will creates a locator1 in the scene and populated in the list
> widget
> - Double click on the locator1 in the list widget and input in a new
> name. Eg. ‘myLocator’
> - Go back to Maya and tried pressing ‘Ctrl+Z’ (undo)
> - While it does changes the name ‘myLocator’ back to ‘locator1’ in
> Maya context, I would also like it to be ‘updated’ in my Gui.
>
> How should I go about doing this?
> P.S: I was also trying to find a way to peform undoing in the Gui which
> will also in turns effects the changes in the Maya scene if possible.
>
Have you tried using a MEventMessage or a scriptJob to listen for the
"Undo" Maya events and then performing the undo in your own GUI?
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