PyGobject（三十三）布局容器之ApplicationWindow

GtkApplicationWindow
继承关系

Methods

Virtual Methods

Properties

Signals

例子

Gtk.ApplicationWindow

Gtk.ApplicationWindow是Gtk.Window子类，它提供了一些额外的功能使其能够与Gtk.Application更好的集成。

这个类实现了Gio.ActionGroup和Gio.ActionMap接口，能够方便的添加Actions。在Gtk.ApplicationWindow中使用add_action()添加的action，默认前缀为“win”，在Gtk.Application中使用add_action()添加的action默认前缀为“app”

继承关系

Gtk.ApplicationWindow是Gtk.Window的直接子类

Methods

方法修饰词	方法名及参数
static	new (application)
	get_help_overlay ()
	get_id ()
	get_show_menubar ()
	set_help_overlay (help_overlay)
	set_show_menubar (show_menubar)

Virtual Methods

Properties

Name	Type	Flags	Short Description
show-menubar	bool	r/w/c/en	是否显示menubar

Signals

Name	Short Description

例子

代码：

#!/usr/bin/env python3
# Created by xiaosanyu at 16/7/17
# section 039
#
# author: xiaosanyu
# website: yuxiaosan.tk \
#          http://blog.csdn.net/a87b01c14 # created: 16/7/17

TITLE = "ApplicationWindow"
DESCRIPTION = """
Gtk.ApplicationWindow is a Gtk.Window subclass that offers some extra functionality
for better integration with Gtk.Application features. Notably,
it can handle both the application menu as well as the menubar
"""

import gi

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

MENU_XML = """
<interface>
<menu id='menubar'>
<submenu>
<attribute name="label">_Edit</attribute>
<item>
<attribute name="label" translatable="yes">_Copy</attribute>
<attribute name="action">win.copy</attribute>
</item>
<item>
<attribute name="label" translatable="yes">_Paste</attribute>
<attribute name="action">win.paste</attribute>
</item>
</submenu>
</menu>
</interface>
"""

class Application(Gtk.Application):
def __init__(self, *args, **kwargs):
super().__init__(*args, application_id="org.gtk.Example.GtkApplicationWindow",
flags=Gio.ApplicationFlags.FLAGS_NONE, **kwargs)
self.window = None

def do_startup(self):
Gtk.Application.do_startup(self)

builder = Gtk.Builder.new_from_string(MENU_XML, -1)

menubar = builder.get_object("menubar")
self.set_menubar(menubar)

def do_activate(self):
# We only allow a single window and raise any existing ones
if not self.window:
# Windows are associated with the application
# when the last one is closed the application shuts down
self.window = Gtk.ApplicationWindow(application=self, title="ApplicationWindow")
self.window.set_size_request(200, 200)
label = Gtk.Label()
self.window.add(label)
action = Gio.SimpleAction.new("copy", None)
action.connect("activate", self.on_copy, label)
self.window.add_action(action)

action = Gio.SimpleAction.new("paste", None)
action.connect("activate", self.on_paste, label)
self.window.add_action(action)

self.window.show_all()

@staticmethod
def on_copy(action, param, label):
label.set_label(action.get_name())

@staticmethod
def on_paste(action, param, label):
label.set_label(action.get_name())

def main():
app = Application()
app.run()

if __name__ == "__main__":
main()

代码解析:

MENU_XML字符串定义了一个menu

自定义类Application继承自Gtk.Application,并初始化

class Application(Gtk.Application):
def __init__(self, *args, **kwargs):
super().__init__(*args, application_id="org.gtk.Example.GtkApplicationWindow",
flags=Gio.ApplicationFlags.FLAGS_NONE, **kwargs)
self.window = None

在do_startup虚方法中，使用Gtk.Builder加载设置菜单

builder = Gtk.Builder.new_from_string(MENU_XML, -1)
menubar = builder.get_object("menubar")
self.set_menubar(menubar)

在do_activate虚方法中，创建一个Gtk.ApplicationWindow

self.window = Gtk.ApplicationWindow(application=self, title="ApplicationWindow")

设置其大小，并向其中添加一个Gtk.Label

self.window.set_size_request(200, 200)
label = Gtk.Label()
self.window.add(label)

创建两个Action,并添加到Gtk.ApplicationWindow中

action = Gio.SimpleAction.new("copy", None)
action.connect("activate", self.on_copy, label)
self.window.add_action(action)

action = Gio.SimpleAction.new("paste", None)
action.connect("activate", self.on_paste, label)
self.window.add_action(action)

显示Gtk.ApplicationWindow

self.window.show_all()

代码下载地址：http://download.csdn.net/detail/a87b01c14/9594728