PyGobject（二十四）布局容器之Expander

Gtk.Expander

Gtk.Expander折叠视图，有一个小三角形，可以用来显示或者收起子部件

继承关系

Gtk.Expander是Gtk.Bin的直接子类

Methods

方法修饰词	方法名及参数
static	new (label)
static	new_with_mnemonic (label)
	get_expanded ()
	get_label ()
	get_label_fill ()
	get_label_widget ()
	get_resize_toplevel ()
	get_spacing ()
	get_use_markup ()
	get_use_underline ()
	set_expanded (expanded)
	set_label (label)
	set_label_fill (label_fill)
	set_label_widget (label_widget)
	set_resize_toplevel (resize_toplevel)
	set_spacing (spacing)
	set_use_markup (use_markup)
	set_use_underline (use_underline)

Virtual Methods

do_activate ()

Properties

Name	Type	Flags	Short Description
expanded	bool	r/w/c/en	是否显示子部件
label	str	r/w/c	Expander显示的文本
label-fill	bool	r/w/c/en	label-widget是否铺满
label-widget	Gtk.Widget	r/w	用来替换label的一个部件
resize-toplevel	bool	r/w/en	当收起子部件的时候是否重新调整父容器的窗口大小
spacing	int	d/r/w/en	Space to put between the label and the child deprecated
use-markup	bool	r/w/c/en	label中的文本是否带markup标记.
use-underline	bool	r/w/c/en	是否使用助记符

Signals

Name	Short Description
activate

例子

一

代码：

#!/usr/bin/env python3
# Created by xiaosanyu at 16/7/7
# section 027
TITLE = "Expander"
DESCRIPTION = """
A Gtk.Expander allows the user to hide or show its child by clicking on
an expander triangle similar to the triangles used in a Gtk.TreeView.
"""
import gi

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


class ExpanderWindow(Gtk.Window):
    def __init__(self):
        Gtk.Window.__init__(self, title="Expander Example")
        self.set_size_request(250, 200)
        self.box = Gtk.VBox()
        expander = Gtk.Expander.new("Expander")
        expander.set_expanded(True)
        expander.connect("activate", self.callback)
        label = Gtk.Label("label")
        expander.add(label)
        self.box.pack_start(expander, False, False, 0)
        self.add(self.box)

    @staticmethod
    def callback(widget):
        if widget.get_expanded():
            print("unexpanded")
        else:
            print("expanded")


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


if __name__ == "__main__":
    main()

代码解析

expander = Gtk.Expander.new("Expander")
expander.set_expanded(True)

创建一个Gtk.Expander，设置模式为展开

label = Gtk.Label("label")
expander.add(label)

创建一个Label，添加到expander容器中

二

使用Gtk.Builder来创建Expander

代码：

#!/usr/bin/env python3
# Created by xiaosanyu at 16/7/7
# section 028
TITLE = "Expander_created_by_ui"
DESCRIPTION = ""
import gi

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

UIINFO = """
<?xml version="1.0" encoding="UTF-8"?>
<interface>
    <!-- interface-requires gtk+ 3.0 -->
    <object class="GtkWindow" id="window1">
        <property name="can_focus">False</property>
        <signal name="delete-event" handler="onDeleteWindow" swapped="no"/>
        <child>
            <object class="GtkExpander">
                <child type="label">
                    <object class="GtkLabel" id="expander-label">
                    <property name="label">expander</property>
                    </object>
                </child>
                <child>
                    <object class="GtkEntry" id="expander-content" />
                </child>
            </object>
        </child>
    </object>
</interface>

"""


class Handler:
    @staticmethod
    def onDeleteWindow(*args):
        Gtk.main_quit(*args)


def main():
    builder = Gtk.Builder()
    builder.add_from_string(UIINFO)
    builder.connect_signals(Handler())

    window = builder.get_object("window1")
    window.show_all()

    Gtk.main()


if __name__ == "__main__":
    main()

Gtk.Builder的详细介绍请移步传送门

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