[ Enhancement] Don't have remove Tab in TabGroup element about pysimplegui HOT 4 CLOSED

Basically, there's no method provided to remove any element in PySimpleGUI, but method update with option visible to hide or unhide the element.

import PySimpleGUI as sg

layout = [
    [sg.TabGroup(
        [
            [sg.Tab(
                f'TAB {i}',
                [[sg.Text(f'This is the Tab {i}')]],
                key=f'Tab {i}',
            ) for i in range(5)],
        ],
        key='TabGroup')],
    [sg.Push(), sg.Button("Hide Tab 3"), sg.Button("Show Tab 3")],
]
window = sg.Window('Tab Group', layout)

while True:

    event, values = window.read()

    if event == sg.WIN_CLOSED:
        break

    elif event == "Hide Tab 3":
        window['Tab 3'].update(visible=False)

    elif event == "Show Tab 3":
        window['Tab 3'].update(visible=True)

window.close()

from pysimplegui.

Basically, there's no method provided to remove any element in PySimpleGUI, but method update with option visible to hide or unhide the element.

import PySimpleGUI as sg

layout = [
    [sg.TabGroup(
        [
            [sg.Tab(
                f'TAB {i}',
                [[sg.Text(f'This is the Tab {i}')]],
                key=f'Tab {i}',
            ) for i in range(5)],
        ],
        key='TabGroup')],
    [sg.Push(), sg.Button("Hide Tab 3"), sg.Button("Show Tab 3")],
]
window = sg.Window('Tab Group', layout)

while True:

    event, values = window.read()

    if event == sg.WIN_CLOSED:
        break

    elif event == "Hide Tab 3":
        window['Tab 3'].update(visible=False)

    elif event == "Show Tab 3":
        window['Tab 3'].update(visible=True)

window.close()

Thanks for your comment,
In fact, I use multithreading in the tabs to initiate video previews. Simply hiding the tabs would waste more resources and connections. Repeatedly initiating them may lead to resource leaks.

from pysimplegui.

Simply hiding the tabs would waste more resources and connections. Repeatedly initiating them may lead to resource leaks.

Following code demo a way to delete a container element. Not sure if it work for all the cases. At least, some information still kept and not destroyed, for example, images, so there will still have some resource leaks.

Most of time, I will reuse the hidden element if new element required.

import PySimpleGUI as sg

def delete(widget):
    for w in widget.pack_slaves():
        if w in all_keys:
            del window.AllKeysDict[all_keys[w]]
        delete(w)
    widget.destroy()

layout = [
    [sg.TabGroup(
        [
            [sg.Tab(
                f'TAB {i}',
                [[sg.Text(f'This is the Tab {i}')]],
                key=f'Tab {i}',
            ) for i in range(5)],
        ],
        key='TabGroup')],
    [sg.Push(), sg.Button("Delete Tab 3")],
]
window = sg.Window('Tab Group', layout, finalize=True)
all_keys = {widget:key for key, widget in window.AllKeysDict.items()}

while True:

    event, values = window.read()

    if event == sg.WIN_CLOSED:
        break

    elif event == "Delete Tab 3":
        if 'Tab 3' in window.AllKeysDict:
            tab = window['Tab 3'].widget
            delete(tab)

window.close()

from pysimplegui.

You've got valid areas of concern. I don't think we're into problem territory currently. The amount of memory a Tab uses is very small. Hiding and unhiding elements doesn't create nor destroy objects so there should be no resource leak in that operation. If you do some profiling/measuring and find a leak, by all means let us know. I routinely run applications for days and haven't had trouble.

from pysimplegui.