OptionVar is not saving/ loading correctly

[likage]

I am using `optionVar` to store inputs made within the maya ui commands.

And these storing will only be effected if the tool gui is closed (the cross 'x' button within the window) and I am having issues with that...

I am having some issues with the loading and saving when using `optionVar`.

In my current code, I have set it to query the boolean value, where it read it as False, when the UI is loaded, it checked the check box which is a True value that is wrong...

Additionally, for the saving of inputs upon window closure, it does not seems to be able to 'save' the data at all. And when relaunching the code, I will get `# RuntimeError: Object 'chk_box' not found. # `

def testWin():

    default_options = cmds.optionVar(

        stringValue=(

            ("checkbox_state", False),

        )

    )

    

    # This will returns me False

    print cmds.optionVar(q="checkbox_state")

    

    

    w = cmds.window()

    col = cmds.columnLayout()

    chk_state = bool(cmds.optionVar(q="checkbox_state"))

    # But it will checked the checkbox though it should be False initially

    chkBox = cmds.checkBox("chk_box", label="checkbox state Testing", value=bool(chk_state))

    

    btn = cmds.button('print', c=print_state)

    

    return w

def print_state(*args):

    state = cmds.checkBox("chk_box", query=True, value=True) # Returns me the current state - True/ False

    print state

def win_closure(*_):

    #cmds.checkBox("chk_box", query=True, value=True) # Returns me nothing

    cmds.optionVar(stringValue=("checkbox_state", cmds.checkBox("chk_box", q=True, value=True)))

    print "window " + w + " was deleted"

win = testWin()

cmds.scriptJob(uiDeleted = (win, win_closure), runOnce=True)

cmds.showWindow(win)

[Justin Israel]

In python, converting a string to a bool is going to return True if the string is not empty. It doesn't do what you think it does, by interpreting "True" to True. 

Use an int instead:

http://help.autodesk.com/cloudhelp/2016/ENU/Maya-Tech-Docs/CommandsPython/optionVar.html#flagintValue

That will convert from True/False to 1/0 and back again. 

Justin 

--
You received this message because you are subscribed to the Google Groups "Python Programming for Autodesk Maya" group.
To unsubscribe from this group and stop receiving emails from it, send an email to python_inside_m...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/4fc79cee-c18b-4c76-bb87-3dee2ee4f1a5%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[likage]

Hi Justin, many thanks for the reply, that seems to have do the trick.

Wondering if you could also share any insights into `# RuntimeError: Object 'chk_box' not found. #` whenever I tried to relaunch/ rerun the code? 

[Justin Israel]

On Wed, Aug 15, 2018 at 9:10 AM likage <dissid...@gmail.com> wrote:

Hi Justin, many thanks for the reply, that seems to have do the trick.

Wondering if you could also share any insights into `# RuntimeError: Object 'chk_box' not found. #` whenever I tried to relaunch/ rerun the code? 

It is likely due to the very fragile approach of using literal names like "chk_box" and "checkbox_state" between free functions. The problem is that each time a window is created, those same ui elements could end up being chk_box2, chk_box3, ... if they previously exist. Also for the optionVar name, it is possible to clash with something else using such a simple name as 'checkbox_state'. So it is best to namespace it with something more unique related to your app name.

My suggestion is that you refactor this all into a single class that can save the name of the check box that was returned when you create it. Then you can reuse this name throughout your code instead of assuming it is always called the same thing.

 

--
You received this message because you are subscribed to the Google Groups "Python Programming for Autodesk Maya" group.
To unsubscribe from this group and stop receiving emails from it, send an email to python_inside_m...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/e0ec520e-6b6c-4dae-9946-dfa83cd80b96%40googlegroups.com.