Ruby/Tk

Hi !

I have a trouble.

···

###
require "tk"

class Main
def initialize
   @root = TkRoot.new { title "prog" }

   top = TkToplevel.new
   @edit = TkEntry.new(top) {
     pack
   }

   cmd = proc { puts @edit.get }

   button = TkButton.new(@root) {
     pack
     text ""
     command cmd
   }

   top.grab
   Tk.mainloop
end
end

m = Main.new
###
How to get @edit value after "top" is closed ?

How to get @edit value after "top" is closed ?

If I remember correctly you need to use @edit.value

···

---
Diego

Message-ID: <00f13bf8-211a-4a9c-8355-b6f30a38856a@z19g2000vbz.googlegroups.com>

How to get @edit value after "top" is closed ?

One of the simple solution is to use a TkVariable and
'textvariable' option of an entry widget.

···

From: "graycardinalster@gmail.com" <graycardinalster@gmail.com>
Subject: Ruby/Tk
Date: Fri, 15 May 2009 23:45:07 +0900
------------------------------------------
  @edit_var = TkVariable.new
  @edit = TkEntry.new(top, :textvariable=>@edit_var).pack
    :
  cmd = proc{ puts @edit_var.value }
------------------------------------------
--
Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)

I not found -textvariable options in TkText :frowning:

···

--
Posted via http://www.ruby-forum.com/.

Message-ID: <9a4197f4c584ffc1c50449c46246739d@ruby-forum.com>

I not found -textvariable options in TkText :frowning:

If you use Tcl/Tk8.5, Tk::Text::Peer widget is useful.

···

From: Oleg Igor <graycardinalster@gmail.com>
Subject: Re: Ruby/Tk
Date: Sun, 17 May 2009 18:55:47 +0900
----------------------------------------------------------------------
txt = Tk::Text.new # A base text widget.
                    # In this case, it isn't shown on the GUI.

top = Tk::Toplevel.new
peer = Tk::Text::Peer.new(txt, top).pack
  # A peer widget of 'txt' widget. Its parent is 'top' widget.

# ... destroy 'top' widget ...

p txt.value # This is the same content with the destroyed peer.
----------------------------------------------------------------------

If you use Tcl/Tk8.4 or the former version,
you can "withdraw" the dialog instead of "destroy".
----------------------------------------------------------------------
top = Tk::Toplevel.new
txt = Tk::Text.new(top).pack
@value = ""
top.protocol('WM_DELETE_WINDOW'){ top.withdraw; @value = txt.value }
  # Ignore 'WM_DELETE_WINDOW' protocol (e.g. when click the 'delete'
  # button on the window frame) from a window manager.
  # In this case, withdraw the toplevel widget instead of destroy it.

# ... withdraw the toplevel ...

p @value

top.deiconify # Display the toplevel widget in normal form.
----------------------------------------------------------------------

Or, get value before destroying the toplevel.
----------------------------------------------------------------------
top = Tk::Toplevel.new
txt = Tk::Text.new(top).pack
@value = ""
top.protocol('WM_DELETE_WINDOW'){ @value = txt.value; top.destroy }

# ... destroy the toplevel ...

p @value
----------------------------------------------------------------------
--
Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)