topbar -> button & ButtonWidget || Added disabled feature & font size & right-click action & toggle select

[JimChr-R4GN4R]

def do_something(chart):
    # Enable-Disable button feature
    myButton = chart.topbar['myButton']
    myButton.disable()
    ...
    <task code>
    ...    
    my_button.enable()
    
    # Set toggle select feature
    if myButton.is_toggle_selected:
        myButton.toggle_deselect()
    else:
        myButton.toggle_select()

# Right-Click function feature
def do_something_else(chart):
    myButton = chart.topbar['myButton']
    myButton.disable()
    ...
    update_button.enable()


topbar.button("myButton", "Click Me", disabled=False, font_size='25px', func=do_something, right_click_func=lambda event: on_right_click(chart), selected_bg="#ffffff")

When button is disabled, if you press it (left or right click), it does not call the do_something function and it's text get's opacity=0.5

ATTENTION: best practice for the right_click_func feature is to set the function like this right_click_func=lambda event: do_something_else(chart) instead of just right_click_func=do_something_else, because if you need to use the chart variable, the function will through error.

If you don't set selected_bg, the toggle select feature will be disabled.