PyGobject（四十二）布局容器之ButtonBox

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Gtk.ButtonBox

Gtk.ButtonBox能够控制子部件的排列方式，如居中，靠左，靠右等。还能够控制子部件的主次关系，见例子。

继承关系

Gtk.ButtonBox是Gtk.Box的直接子类
这里写图片描述

Methods

方法修饰词方法名及参数 static new (orientation) get_child_non_homogeneous (child) get_child_secondary (child) get_layout () set_child_non_homogeneous (child, non_homogeneous) set_child_secondary (child, is_secondary) set_layout (layout_style)

Virtual Methods

Properties

Name Type Flags Short Description layout-style Gtk.ButtonBoxStyle r/w/en How to lay out the buttons in the box. Possible values are: spread, edge, start and end

Signals

Name Short Description

例子

这里写图片描述
代码：

#!/usr/bin/env python3# Created by xiaosanyu at 16/6/28# section 059TITLE = "ButtonBox"DESCRIPTION = ""import gigi.require_version("Gtk", "3.0")from gi.repository import Gtkclass ButtonBoxWindow(Gtk.Window):    def __init__(self):        Gtk.Window.__init__(self, title="ButtonBox Demo")        self.set_border_width(10)        main_vbox = Gtk.VBox()        self.add(main_vbox)        box = Gtk.ButtonBox(layout_style=Gtk.ButtonBoxStyle.EDGE)        main_vbox.pack_start(box, False, False, 10)        child1 = Gtk.Button(label="button1")        child1.set_size_request(150, 30)        child2 = Gtk.Button(label="button2")        child3 = Gtk.Button(label="button3")        box.add(child1)        box.add(child2)        box.add(child3)        # set_child_non_homogeneous 设置False,其它孩子大小跟它同等,设置True,其他孩子尺寸跟它不一样        box.set_child_non_homogeneous(child1, True)        # set_child_secondary 设置孩子显示在次要位置.如果ButtonBox从左到右方向.则孩子显示在最右边.        box.set_child_secondary(child2, True)        frame_horz = Gtk.Frame.new("Horizontal Button Boxes")        main_vbox.pack_start(frame_horz, True, True, 10)        vbox = Gtk.VBox()        vbox.set_border_width(10)        frame_horz.add(vbox)        vbox.pack_start(self.create_bbox(Gtk.Orientation.HORIZONTAL, "Spread", 40, Gtk.ButtonBoxStyle.SPREAD), True,                        True, 0)        vbox.pack_start(self.create_bbox(Gtk.Orientation.HORIZONTAL, "Edge", 40, Gtk.ButtonBoxStyle.EDGE), True, True,                        5)        vbox.pack_start(self.create_bbox(Gtk.Orientation.HORIZONTAL, "Start", 40, Gtk.ButtonBoxStyle.START), True, True,                        5)        vbox.pack_start(self.create_bbox(Gtk.Orientation.HORIZONTAL, "End", 40, Gtk.ButtonBoxStyle.END), True, True, 5)        vbox.pack_start(self.create_bbox(Gtk.Orientation.HORIZONTAL, "Center", 40, Gtk.ButtonBoxStyle.CENTER), True,                        True, 5)        vbox.pack_start(self.create_bbox(Gtk.Orientation.HORIZONTAL, "Expand", 0, Gtk.ButtonBoxStyle.EXPAND), True,                        True, 5)        frame_vert = Gtk.Frame.new("Vertical Button Boxes")        main_vbox.pack_start(frame_vert, True, True, 10)        hbox = Gtk.HBox()        hbox.set_border_width(10)        frame_vert.add(hbox)        hbox.pack_start(self.create_bbox(Gtk.Orientation.VERTICAL, "Spread", 10, Gtk.ButtonBoxStyle.SPREAD), True, True,                        0)        hbox.pack_start(self.create_bbox(Gtk.Orientation.VERTICAL, "Edge", 10, Gtk.ButtonBoxStyle.EDGE), True, True, 5)        hbox.pack_start(self.create_bbox(Gtk.Orientation.VERTICAL, "Start", 10, Gtk.ButtonBoxStyle.START), True, True,                        5)        hbox.pack_start(self.create_bbox(Gtk.Orientation.VERTICAL, "End", 10, Gtk.ButtonBoxStyle.END), True, True, 5)        hbox.pack_start(self.create_bbox(Gtk.Orientation.VERTICAL, "Center", 10, Gtk.ButtonBoxStyle.CENTER), True,                        True, 5)        hbox.pack_start(self.create_bbox(Gtk.Orientation.VERTICAL, "Expand", 0, Gtk.ButtonBoxStyle.EXPAND), True, True,                        5)    @staticmethod    def create_bbox(horizontal, title, spacing, layout):        frame = Gtk.Frame.new(title)        bbox = Gtk.ButtonBox.new(orientation=horizontal)        bbox.set_border_width(5)        frame.add(bbox)        bbox.set_layout(layout)        bbox.set_spacing(spacing)        button = Gtk.Button.new_with_label("OK")        bbox.add(button)        button = Gtk.Button.new_with_label("Cancel")        bbox.add(button)        button = Gtk.Button.new_with_label("Help")        bbox.add(button)        return framedef main():    win = ButtonBoxWindow()    win.connect("delete-event", Gtk.main_quit)    win.show_all()    Gtk.main()if __name__ == "__main__":    main()

代码解析

child1 = Gtk.Button(label="button1")child1.set_size_request(150, 30)child2 = Gtk.Button(label="button2")child3 = Gtk.Button(label="button3")box.add(child1)box.add(child2)box.add(child3)

第一组的三个按钮组要讲解set_child_non_homogeneous方法和set_child_secondary

# set_child_non_homogeneous 设置False(默认值),其它孩子大小跟它同等,设置True,其他孩子尺寸跟它不一样box.set_child_non_homogeneous(child1, True)# set_child_secondary 设置孩子显示在次要位置.如果ButtonBox从左到右方向.则孩子显示在最右边.box.set_child_secondary(child2, True)

接下来主要介绍 Gtk.ButtonBoxStyle的使用，代码结合示例图看，比较清楚明了，不啰嗦了~

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

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