PyGobject（六十九）Gtk.Widget之Gtk.LevelBar

Gtk.LevelBar

Gtk.LevelBar进度条。有点类似如Gtk.ProgressBar，不过它不显示文本

继承关系

Methods

方法修饰词	方法名及参数
static	new ()
static	new_for_interval (min_value, max_value)
	add_offset_value (name, value)
	get_inverted ()
	get_max_value ()
	get_min_value ()
	get_mode ()
	get_offset_value (name)
	get_value ()
	remove_offset_value (name)
	set_inverted (inverted)
	set_max_value (value)
	set_min_value (value)
	set_mode (mode)
	set_value (value)

Virtual Methods

do_offset_changed (name)

Properties

Name	Type	Flags	Short Description
inverted	bool	r/w/en	Invert the direction in which the level bar grows
max-value	float	r/w/en	Maximum value level that can be displayed by the bar
min-value	float	r/w/en	Minimum value level that can be displayed by the bar
mode	Gtk.LevelBarMode	r/w/en	The mode of the value indicator displayed by the bar
value	float	r/w/en	Currently filled value level of the level bar

Signals

Name	Short Description
offset-changed	Emitted when an offset specified on the bar changes value as an effect to Gtk.LevelBar.add_offset_value() being called.

例子

代码：

#!/usr/bin/env python3
# Created by xiaosanyu at 16/7/14
# section 110
# 
# author: xiaosanyu
# website: yuxiaosan.tk \
#          http://blog.youkuaiyun.com/a87b01c14
# created: 16/7/14

TITLE = "LevelBar"
DESCRIPTION = """
The Gtk.LevelBar is a bar widget that can be used as a level indicator.
Typical use cases are displaying the strength of a password, or showing the charge level of a battery.

"""
import gi

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


class LevelBarWindow(Gtk.Window):
    def __init__(self, *args, **kwargs):
        Gtk.Window.__init__(self, title="LevelBar Example")
        self.set_size_request(250, 200)
        box = Gtk.VBox(spacing=6)
        self.lb = Gtk.LevelBar(min_value=0, max_value=100, value=0, inverted=False, mode=Gtk.LevelBarMode.CONTINUOUS)

        box.pack_start(self.lb, False, False, 0)
        self.add(box)
        GLib.timeout_add(100, self.timeout)

    def timeout(self):
        max_value = self.lb.get_max_value()

        self.lb.set_value(self.lb.get_value() % max_value + 1)

        return True


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


if __name__ == "__main__":
    main()

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