Ruby-gnome2: catching middle clicks on tabs


#1

What I am trying to do is capture the button-press-event when a person
middle-clicks on a tab(similar to how Firefox tabs work). As I learned
in #gtk+ using the EventBox should be able to do this
After a quick scouting of the web for an example, I found this:
http://www.async.com.br/faq/pygtk/index.py?req=show&file=faq17.003.htp

Unfortunately, I had problems with what I came up with. By using the
following, when middle clicking on any of the tabs it finds the
page_num to be -1 …

#!/usr/local/bin/ruby --verbose
require ‘gtk2’
include Gtk
init
win = Window.new
win.set_default_size 300, 300

hbox = HBox.new( false, 0)
win.add(hbox)

nb = Notebook.new
hbox.add(nb)

def add_page nb
vbox = VBox.new( false, 0)
tab_label_box = EventBox.new
label = Label.new(‘test’)
tab_label_box.add(label)
tab_label_box.show_all
tab_label_box.signal_connect(‘button-press-event’) do |widget,
event|
if event.event_type==Gdk::Event::BUTTON_PRESS and
event.button==2
puts nb.page_num(widget) # <-- not recognizing as a child ?
end
end
nb.append_page( vbox, tab_label_box)
end

add_page nb
add_page nb
add_page nb

win.show_all
main


#2

Hi,

“tab_label” is not “child” of Gtk::Notebook.
Try code below.

HTH.

On Mon, 12 Dec 2005 18:32:38 +0900
“Clayton Smith” removed_email_address@domain.invalid wrote:

tab_label_box.add(label)
tab_label_box.show_all
tab_label_box.signal_connect('button-press-event') do |widget,

event|
if event.event_type==Gdk::Event::BUTTON_PRESS and
event.button==2
puts nb.page_num(widget) # <-- not recognizing as a child ?

         puts nb.page_num(vbox)  # FIXED!

#3

On Monday 12 December 2005 08:42 am, Masao M. wrote:

#!/usr/local/bin/ruby --verbose
require ‘gtk2’

Where does one get the gtk2 module?

SteveT

Steve L.
http://www.troubleshooters.com
removed_email_address@domain.invalid


#4

ok, but when I do:
puts nb==widget.parent # true

Clayton


#5

http://ruby-gnome2.sourceforge.jp/

Clayton


#6

Hi,

On Tue, 13 Dec 2005 02:07:38 +0900
“Clayton Smith” removed_email_address@domain.invalid wrote:

ok, but when I do:
puts nb==widget.parent # true

Strictly speaking, both of vbox and tab_label_box are
children of nb.

I meant vbox is the “child” in the API reference.

Gtk::Notebook#append_page(child, tab_label = nil)
http://ruby-gnome2.sourceforge.jp/hiki.cgi?Gtk%3A%3ANotebook#append_page

Gtk::Notebook#page_num(child)
http://ruby-gnome2.sourceforge.jp/hiki.cgi?Gtk%3A%3ANotebook#page_num

Sorry for incomplete answer.


#7

Sorry for incomplete answer.
No need to be sorry. I greatly appreciate the help.

Clayton