I want to create a multi-item selection drop-down in enaml.
ComboBox widget offers this but we can only select one item at a time. Same is the case with ObjectCombo widget (however slightly different in functionality from ComboBox).
Even something which closely replicates the end-functionality of being able to select multi items from a list, will be helpful, even if it's not a drop-down necessarily.
答案 0 :(得分:1)
您可以使用PopupMenu并使操作可以检查。
像这样:
#------------------------------------------------------------------------------
# Copyright (c) 2018, Nucleic Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file COPYING.txt, distributed with this software.
#------------------------------------------------------------------------------
""" This example demonstrates how to popup a menu.
A menu can be popped up in 2-ways. The first is by declaring the menu as
a child of a widget and setting the 'context_menu' attribute to True. The
second method is by creating the menu on-demand, and then invoking it's
'popup()' method to show the menu at the current mouse location.
"""
from __future__ import print_function
from enaml.widgets.api import (
Window, Container, PushButton, Menu, Action, Field
)
from enaml.core.api import Looper
enamldef PopupMenu(Menu): menu:
attr selected = set()
attr choices = []
Looper:
iterable << choices
Action:
text = loop_item
triggered :: print(text + ' triggered')
checkable = True
checked << self.text in selected
checked :: selected.add(self.text) if self.checked else selected.remove(self.text)
enamldef Main(Window):
Container:
PushButton:
text = 'Popup Menu'
attr selected = set()
clicked :: PopupMenu(selected=self.selected,
choices=['foo', 'bar', 'baz', 'bam']).popup()
Field:
text = 'Context Menu'
read_only = True
PopupMenu:
context_menu = True
choices = ['a', 'b', 'c', 'd']