PyGobject（二十七）布局容器之PopoverMenu

Gtk.PopoverMenu

Gtk.PopoverMenu气泡菜单

继承关系

Gtk.PopoverMenu是Gtk.Popover的直接子类

Methods

方法修饰词	方法名及参数
static	new ()
	open_submenu (name)

Virtual Methods

Properties

Name	Type	Flags	Short Description
visible-submenu	str	r/w	The name of the visible submenu

Signals

Name	Short Description

例子

代码：

#!/usr/bin/env python3
# Created by xiaosanyu at 16/7/7
# section 031
TITLE = "PopoverMenu"
DESCRIPTION = """
Gtk.PopoverMenu is a subclass of Gtk.Popover that treats its children like menus and allows
switching between them. It is meant to be used primarily together with Gtk.ModelButton,
but any widget can be used, such as Gtk.SpinButton or Gtk.Scale.
"""
import gi

gi.require_version("Gtk", "3.0")
from gi.repository import Gtk, Gio, GLib

MENU_XML = """
<?xml version="1.0" encoding="UTF-8"?>
<interface>
    <object class="GtkPopoverMenu" id="pop_menu">
    <property name="modal">False</property>
  <child>
    <object class="GtkBox">
      <property name="visible">True</property>
      <property name="margin">10</property>
      <child>
        <object class="GtkModelButton">
          <property name="visible">True</property>
          <property name="action-name">win.frob</property>
          <property name="text" translatable="yes">Frob</property>
        </object>
      </child>
      <child>
        <object class="GtkModelButton">
          <property name="visible">True</property>
          <property name="menu-name">more</property>
          <property name="text" translatable="yes">More</property>
        </object>
      </child>
    </object>
  </child>
  <child>
    <object class="GtkBox">
      <property name="visible">True</property>
      <property name="margin">10</property>
      <child>
        <object class="GtkModelButton">
          <property name="visible">True</property>
          <property name="action-name">win.foo</property>
          <property name="text" translatable="yes">Foo</property>
        </object>
      </child>
      <child>
        <object class="GtkModelButton">
          <property name="visible">True</property>
          <property name="action-name">win.bar</property>
          <property name="text" translatable="yes">Bar</property>
        </object>
      </child>
    </object>
    <packing>
      <property name="submenu">more</property>
    </packing>
  </child>
</object>
</interface>

"""


class PopoverMenuWindow(Gtk.Window):
    def __init__(self, *args, **kwargs):
        Gtk.Window.__init__(self, title="PopoverMenu Demo")
        self.set_size_request(200, 100)

        builder = Gtk.Builder()
        builder.add_from_string(MENU_XML)
        grid = Gtk.Grid()
        button = Gtk.ToggleButton("button")

        menu = builder.get_object("pop_menu")
        menu.set_relative_to(button)
        menu.set_position(Gtk.PositionType.BOTTOM)
        button.connect("toggled", self.toggle_changed, menu)
        grid.attach(button, 0, 0, 1, 1)
        self.add(grid)

        self.add_actions()

    def add_actions(self):
        action_group = Gio.SimpleActionGroup()
        self.insert_action_group("win", action_group)
        action = Gio.SimpleAction.new("frob", None)
        action.connect("activate", self.clicked)
        action_group.insert(action)
        action = Gio.SimpleAction.new("foo", None)
        action.connect("activate", self.clicked)
        action_group.insert(action)
        action = Gio.SimpleAction.new("bar", None)
        action.connect("activate", self.clicked)
        action_group.insert(action)

    @staticmethod
    def clicked(action, param):
        print(action.get_name())

    @staticmethod
    def toggle_changed(button, popover_menu):
        popover_menu.set_visible(button.get_active())


def main():
    win = PopoverMenuWindow()
    win.connect("delete-event", Gtk.main_quit)
    win.show_all()
    Gtk.main()


if __name__ == "__main__":
    main()

代码解析

builder = Gtk.Builder()
builder.add_from_string(MENU_XML)

菜单布局是用glade生成的。

创建一个ToggleButton

button = Gtk.ToggleButton("button")

menu = builder.get_object("pop_menu")
menu.set_relative_to(button)

从Builder中获取到PopoverMenu部件，设置其依附于ToggleButton

def add_actions(self):
    action_group = Gio.SimpleActionGroup()
    self.insert_action_group("win", action_group)
    action = Gio.SimpleAction.new("frob", None)
    action.connect("activate", self.clicked)
    action_group.insert(action)
    action = Gio.SimpleAction.new("foo", None)
    action.connect("activate", self.clicked)
    action_group.insert(action)
    action = Gio.SimpleAction.new("bar", None)
    action.connect("activate", self.clicked)
    action_group.insert(action)

给当前Window添加SimpleActionGroup，使menu点击时，可以响应其中的action

代码下载地址：http://download.youkuaiyun.com/detail/a87b01c14/9594728