Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / zenity-0.5.7 / zenity_message.m

diff --git a/octave_packages/zenity-0.5.7/zenity_message.m b/octave_packages/zenity-0.5.7/zenity_message.m
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+++ b/octave_packages/zenity-0.5.7/zenity_message.m
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+## Copyright (C) 2006  Søren Hauberg
+## 
+## 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, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn  {Function File} zenity_message(@var{text}, @var{type})
+## Displays a graphical message dialog.
+## The variable @var{text} sets the message of the dialog, and the
+## optional variable @var{type} sets the type of the message.
+## @var{type} must be one of the following strings @code{error},
+## @code{info}, @code{question}, and @code{warning}. The default
+## value of @var{type} is @code{info}. Retuns the value @code{status}
+## which is 0 for 'Ok' and 1 for 'Cancel' button selection; a value 
+## of -1 indicates a failure of dialog box.
+##
+## @seealso{zenity_calendar, zenity_list, zenity_progress, zenity_entry,
+## zenity_text_info, zenity_file_selection, zenity_notification}
+## @end deftypefn
+
+function status=zenity_message(text, type)
+  if (nargin == 0 || !ischar(text)), print_usage(); endif
+  if (nargin < 2), type = "info"; endif
+  if !(ischar(type) && any(strcmp(type, {"error", "info", "question", "warning"})))
+    error("zenity_message: unsupported message type: %s", type);
+  endif
+  
+  cmd = sprintf('zenity --%s --text="%s"', type, text);
+  [status, output] = system(cmd);
+  if (status == -1)
+    error("zenity_message: %s", output);
+  endif
+endfunction