Maya Python：更改选项菜单中的选定菜单项答案

【问题标题】：Maya Python: Change selected menuItem in an optionMenuMaya Python：更改选项菜单中的选定菜单项
【发布时间】：2023-03-28 04:05:01
【问题描述】：

我试图弄清楚如何更改 optionMenu 中的 menuItem 选择，但无法弄清楚。

mymenu = cmds.optionMenu(label ='select type', cc=selectTypeCallback)
cmds.menuItem(parent=mymenu, label='selection1')
cmds.menuItem(parent=mymenu, label='selection2')

现在我如何再次调用 mymenu 并检查当前选择的 menuItem 到我选择的那个？

【问题讨论】：

标签： python user-interface maya optionmenu

【解决方案1】：

我已经为你写了一个完整的工作示例和一些很好的实践，你的答案是最后四行:)

    from functools import partial

    # Something to parse ui element, it is important to make difference between ui query and functions
    def optionMenuParser_string(opM_name, func, *args):
        # *args (or could be **kwargs) is here to pass maybe more arguments to a function
        string = cmds.optionMenu(opM_name, q=True, v=True) # you could even parse some flag or anything
        if args and len(args) > 1:
            # args len must be superior to 1 because maya always input True argument
            func(string, *args)
        else:
            func(string)

    # A function doing something with the string
    def printNewMenuItem( item ):
        print item 

    window = cmds.window()
    cmds.columnLayout()
    # change command='' is a placeholder to input back the option menu name
    mygroup = cmds.optionMenu( label='Colors', changeCommand='' )
    # partial is used to put arguments in a function trhought the ui
    cmds.optionMenu(mygroup, e=1, changeCommand= partial(optionMenuParser_string, mygroup, printNewMenuItem) )
    cmds.menuItem( p=mygroup, label='Yellow' )
    cmds.menuItem( p=mygroup, label='Purple' )
    cmds.menuItem( p=mygroup, label='Orange' )
    cmds.showWindow( window )


    cmds.optionMenu(mygroup, q=True, v=True) # to get the name of the current value
    cmds.optionMenu(mygroup, q=True, sl=True) # to get the current index
    cmds.optionMenu(mygroup, e=True, sl = 3 )# to change the current value
    cmds.optionMenu(mygroup, e=True, v = 'Purple' )# to change the current value

【讨论】：