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FlowBox
Время создания: 01.05.2017 01:15
Раздел: Python - PyGTK - classes
Запись: xintrea/mytetra_db_mcold/master/base/1493590535r3clh72gdw/text.html на raw.githubusercontent.com

A Gtk.FlowBox is a container that positions child widgets in sequence according to its orientation.

For instance, with the horizontal orientation, the widgets will be arranged from left to right, starting a new row under the previous row when necessary. Reducing the width in this case will require more rows, so a larger height will be requested.

Likewise, with the vertical orientation, the widgets will be arranged from top to bottom, starting a new column to the right when necessary. Reducing the height will require more columns, so a larger width will be requested.

The children of a Gtk.FlowBox can be dynamically sorted and filtered.

Although a Gtk.FlowBox must have only Gtk.FlowBoxChild children, you can add any kind of widget to it via Gtk.Container.add(), and a Gtk.FlowBoxChild widget will automatically be inserted between the box and the widget.

5.6.1. Example


import gi

gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, Gdk

class FlowBoxWindow(Gtk.Window):

    def __init__(self):
        Gtk.Window.__init__(self, title="FlowBox Demo")
        self.set_border_width(10)
        self.set_default_size(300, 250)

        header = Gtk.HeaderBar(title="Flow Box")
        header.set_subtitle("Sample FlowBox app")
        header.props.show_close_button = True

        self.set_titlebar(header)

        scrolled = Gtk.ScrolledWindow()
        scrolled.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC)

        flowbox = Gtk.FlowBox()
        flowbox.set_valign(Gtk.Align.START)
        flowbox.set_max_children_per_line(30)
        flowbox.set_selection_mode(Gtk.SelectionMode.NONE)

        self.create_flowbox(flowbox)

        scrolled.add(flowbox)

        self.add(scrolled)
        self.show_all()

    def color_swatch_new(self, str_color):
        color = Gdk.color_parse(str_color)

        rgba = Gdk.RGBA.from_color(color)
        button = Gtk.Button()

        area = Gtk.DrawingArea()
        area.set_size_request(24, 24)
        area.override_background_color(0, rgba)

        button.add(area)

        return button

    def create_flowbox(self, flowbox):
        colors = [
        'AliceBlue',
        'AntiqueWhite',
        'AntiqueWhite1',
        'AntiqueWhite2',
        'AntiqueWhite3',
        'AntiqueWhite4',
        'aqua',
        'aquamarine',
        'aquamarine1',
        'aquamarine2',
        'aquamarine3',
        'aquamarine4',
        'azure',
        'azure1',
        'azure2',
        'azure3',
        'azure4',
        'beige',
        'bisque',
        'bisque1',
        'bisque2',
        'bisque3',
        'bisque4',
        'black',
        'BlanchedAlmond',
        'blue',
        'blue1',
        'blue2',
        'blue3',
        'blue4',
        'BlueViolet',
        'brown',
        'brown1',
        'brown2',
        'brown3',
        'brown4',
        'burlywood',
        'burlywood1',
        'burlywood2',
        'burlywood3',
        'burlywood4',
        'CadetBlue',
        'CadetBlue1',
        'CadetBlue2',
        'CadetBlue3',
        'CadetBlue4',
        'chartreuse',
        'chartreuse1',
        'chartreuse2',
        'chartreuse3',
        'chartreuse4',
        'chocolate',
        'chocolate1',
        'chocolate2',
        'chocolate3',
        'chocolate4',
        'coral',
        'coral1',
        'coral2',
        'coral3',
        'coral4'
        ]

        for color in colors:
            button = self.color_swatch_new(color)
            flowbox.add(button)


win = FlowBoxWindow()
win.connect("delete-event", Gtk.main_quit)
win.show_all()
Gtk.main()
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