# Popup/down module.
# Rick Smereka, Copyright (C) 2008.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, get a copy via the Internet at
# http://gnu.org/copyleft/gpl.html or write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA

# You can contact the author via email at rsmereka@future-lab.com

# Initial tcl version. Aug/2008, Rick Smereka

proc pop_up {mes} {
   # Display a popup window on the screen. The window will have
   # no buttons.
   pop_down
   set dlg .popupdown
   toplevel $dlg
   wm title $dlg ""
   wm withdraw $dlg

   # center popup on screen
   set width [winfo screenwidth .]
   set height [winfo screenheight .]
   set x [expr ($width / 2) - 150]
   set y [expr ($height / 2) - 150]
   wm geometry $dlg +$x+$y

   label $dlg.mes -text $mes -anchor w
   pack $dlg.mes
   wm deiconify $dlg
   update
}

proc pop_down {} {
   # Remove a popup window.
   if {[winfo exists .popupdown]} {
      destroy .popupdown
   }
}

