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我目前在 Python 上使用 gtk 来创建一些图形界面。我正在努力解决一个小问题：我想在笔记本的几页上显示一个 gtk.widget（例如 HBox 或 Button），但我无法成功。小部件仅显示在使用它的第一个页面上，但从不在以下页面上显示。我试过reparenting方法但是倒置的问题，小部件只显示在最后一个。

import gtk
w = gtk.Window(gtk.WINDOW_TOPLEVEL)
w.connect("destroy", gtk.main_quit)
w.set_title("Some tests")
legnth = 850
width = 700
w.set_size_request(length, width)

VBoxWindow = gtk.HBox()

hbox1 = gtk.HBox()
notebook1 = gtk.Notebook()
page1 = gtk.Notebook()
page12 = gtk.VBox()
page13 = gtk.VBox()
page14 = gtk.VBox()

page1.append_page(page12, gtk.Label(' PAGE1 ')
page1.append_page(page13, gtk.Label(' PAGE2 ')
page1.append_page(page14, gtk.Label(' PAGE3 ')

box1 = gtk.VBox()
button1 = gtk.Button("BTN 1")
box1.pack_start(button1, True, True, 5)
page12.pack_start(box1, False, False, 5)

box2 = gtk.VBox()
box2.pack_start(button1, True, True, 5)
page13.pack_start(box2, False, False, 5)

# reparenting method test
#box3 = gtk.VBox()
#button1.reparent(box3)
#box3.pack_start(button1, True, True, 5)
#page13.pack_start(box3, False, False, 5)

page1.props.border_width = 12
page1.add(page12)
page1.add(page13)
notebook1.append_page(page1, gtk.Label('Some MAIN Page'))
VBoxWindow.add(notebook1)
w.add(VBoxWindow)
displayReady = True
w.show_all()
gtk.main()
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3 回答 3

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不，一个小部件一次只能有一个父级。如果您希望相同的控件出现在选项卡的所有页面上，则必须创建重复的控件，在更改选项卡页面时动态移动它们，或者将它们完全放在选项卡控件之外。

移动控件是通过调用remove()旧父add()级和（或特定于控件的变体，例如push_start()）在新父级上完成的。（我忘记了您是否需要在 Python 中管理引用计数；如果是这样，您还必须先ref()移动小部件，然后再移动unref()它；否则，remove()将破坏小部件。）

于 2017-03-01T21:02:43.130 回答
1

抱歉让您久等了，但我完全忘记与你们分享我的解决方案！

这是我发现的：

def reparent_on_switch(self, widget, page):
    for p in range(widget.get_n_pages()):
        container = widget.get_nth_pages(p)
        if not (p == page):
            pass
        else:
            self.foo.reparent(container)
            container.pack_start(self.foo)

它就像一个魅力！

于 2017-04-06T18:45:33.973 回答
0

您可以按照本教程pyGObject来python3解决您的问题。

尝试，按照每个步骤：

# This is a test application within PyGObject version 3.0+
import gi
# Test if gi version is 3.0+ 
gi.require_version('Gtk', '3.0')

from gi.repository import Gtk

class TestNoteBook(Gtk.Window):
    def __init__(self):
        # Initialize Gtk.Window
        Gtk.Window.__init__(self)
        # Add title to this app
        self.set_title("Test Note Book")
        # Connect the close button to self.quit_app() method
        self.connect("delete-event", self.quit_app)

        # Create a new Gtk.Widget with type Gtk.Notebook()
        notebook = Gtk.Notebook()
        # Add notebook to the current app class
        self.add(notebook)
        # Create a Gtk.HBox() in which we can add widgets
        page1 = Gtk.HBox()
        # Create button1
        button1 = Gtk.Button("I'm in the page 1")
        # Connect button1 to a signal
        button1.connect("clicked", self.button_clicked, "button1")
        # Add a Button to page1
        page1.add(button1)
        # Add page1 to the notebook with label page-1
        notebook.append_page(page1, Gtk.Label("page-1"))
        # Create new Gtk.HBox()
        page2 = Gtk.HBox()
        # Create button2
        button2 = Gtk.Button("I'm in the page 2")
        # Add a signal to button2
        button2.connect("clicked", self.button_clicked, "button2")
        # Add a button to page2
        page2.add(button2)
        # Add pag2e to the notebook with label page-2
        notebook.append_page(page2, Gtk.Label("page-2"))

    def run(self):
        # Show all the widgets
        self.show_all()
        # Run the Gtk.main loop
        Gtk.main()

    def quit_app(self, widget, args):
        # Print a message with the ID of the widget and its argument
        print("Exit this current window...", widget, args)
        # Exit from the window
        Gtk.main_quit()

    def button_clicked(self, widget, args):
        if args == "button1":
            print("Button 1 clicked!")
        else:
            print("Button2 clicked!")


# test
if __name__ == '__main__':
    app = TestNoteBook()
    app.run()
于 2017-03-01T19:14:56.963 回答