create a gtk.window under a gtk.widget

I wanna show a gtk.Window under a gtk.widge开发者_JAVA百科t.

But I don't know how to retrieve the gtk.widget's coordinates for my gtk.window.

Anyone knows ?

Thanks.

You can use the "window" attribute of the gtk.Widget to get the gtk.gdk.Window associated with it. Then look at the get_origin() method to get the screen coordinates.

These coordinates are for the top-level window, I believe (I could be wrong about that, but my code below seems to support that). You can use the get_allocation() method to get the coordinates of a widget relative to its parent.

I got the idea from here. Be warned though: some window managers ignore any initial settings for window position. You might want to look at this post for more info, but I haven't personally checked it out.

Were you intending to create another top-level window? Or a popup window?

#!/usr/bin/env python
import sys

import pygtk
import gtk

class Base:
    def __init__(self):
        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)

        self.window.connect("destroy", self.on_destroy)

        self.box = gtk.VButtonBox()

        self.buttons = [
            gtk.Button("Test 1"),
            gtk.Button("Test 2"),
            gtk.Button("Test 3")
        ]

        for button in self.buttons:
            self.box.add(button)
            button.connect("clicked", self.show_coords)
            button.show()

        self.window.add(self.box)

        self.box.show()
        self.window.show()

    def show_coords(self, widget, data=None):
        print "Window coords:"
        print self.window.get_window().get_origin()
        print "Button coords:"
        print widget.get_allocation()

    def on_destroy(self, widget, data=None):
        gtk.main_quit()

    def main(self):
        gtk.main()

if __name__ == "__main__":
    base = Base()
    base.main()