zenity/src/main.c

/*
 * main.c
 *
 * Copyright (C) 2002 Sun Microsystems, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Authors: Glynn Foster <glynn.foster@sun.com>
 */

#include "config.h"
#include "zenity.h"
#include <popt.h>
#include <langinfo.h>

typedef enum {
  MODE_CALENDAR,
  MODE_ENTRY,
  MODE_ERROR,
  MODE_FILE,
  MODE_LIST,
  MODE_PROGRESS,
  MODE_QUESTION,
  MODE_TEXTINFO,
  MODE_WARNING,
  MODE_INFO,
  MODE_ABOUT,
  MODE_LAST
} ZenityDialogMode;

typedef enum {
  ERROR_DUPLICATE,
  ERROR_SUPPORT,
  ERROR_DIALOG,
  ERROR_LAST
} ZenityError;

typedef struct {
  ZenityDialogMode mode;
  ZenityData *data;

  ZenityCalendarData *calendar_data;
  ZenityMsgData *msg_data;
  ZenityFileData *file_data;
  ZenityEntryData *entry_data;
  ZenityProgressData *progress_data;
  ZenityTextData *text_data;
  ZenityTreeData *tree_data;
} ZenityParsingOptions;

enum {
  OPTION_CALENDAR = 1,
  OPTION_DATEFORMAT,
  OPTION_ENTRY,
  OPTION_ERROR,
  OPTION_INFO,
  OPTION_FILE,
  OPTION_LIST,
  OPTION_PROGRESS,
  OPTION_QUESTION,
  OPTION_TEXTINFO,
  OPTION_TEXTEDIT,
  OPTION_WARNING,
  OPTION_TITLE,
  OPTION_ICON,
  OPTION_WIDTH,
  OPTION_HEIGHT,
  OPTION_CALENDARTEXT,
  OPTION_DAY,
  OPTION_MONTH,
  OPTION_YEAR,
  OPTION_ENTRYTEXT,
  OPTION_INPUTTEXT,
  OPTION_HIDETEXT,
  OPTION_ERRORTEXT,
  OPTION_INFOTEXT,
  OPTION_FILENAME,
  OPTION_TEXTFILENAME,
  OPTION_COLUMN,
  OPTION_SEPERATOR,
  OPTION_LISTEDIT,
  OPTION_CHECKLIST,
  OPTION_RADIOLIST,
  OPTION_PROGRESSTEXT,
  OPTION_PERCENTAGE,
  OPTION_PULSATE,
  OPTION_QUESTIONTEXT,
  OPTION_WARNINGTEXT,
  OPTION_ABOUT,
  OPTION_VERSION,
  OPTION_LAST,
};

static void zenity_parse_options_callback (poptContext              ctx,
    enum poptCallbackReason  reason,
    const struct poptOption *opt,
    const char              *arg,
    void                    *data);

struct poptOption options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "calendar",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_CALENDAR,
    N_("Display calendar dialog"),
    NULL
  },
  {
    "entry",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_ENTRY,
    N_("Display text entry dialog"),
    NULL
  },
  {
    "error",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_ERROR,
    N_("Display error dialog"),
    NULL
  },
  {
    "file-selection",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_FILE,
    N_("Display file selection dialog"),
    NULL
  },
  {
    "info",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_INFO,
    N_("Display info dialog"),
    NULL
  },
  {
    "list",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_LIST,
    N_("Display list dialog"),
    NULL
  },
  {
    "progress",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_PROGRESS,
    N_("Display progress indication dialog"),
    NULL
  },
  {
    "question",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_QUESTION,
    N_("Display question dialog"),
    NULL
  },
  {
    "text-info",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_TEXTINFO,
    N_("Display text information dialog"),
    NULL
  },
  {
    "warning",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_WARNING,
    N_("Display warning dialog"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption general_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "title",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_TITLE,
    N_("Set the dialog title"),
    N_("TITLE")
  },
  {
    "window-icon",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_ICON,
    N_("Set the window icon"),
    N_("ICONPATH")
  },
  {
    "width",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_WIDTH,
    N_("Set the width"),
    N_("WIDTH")
  },
  {
    "height",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_HEIGHT,
    N_("Set the height"),
    N_("HEIGHT")
  },
  POPT_TABLEEND
};

struct poptOption calendar_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "text",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_CALENDARTEXT,
    N_("Set the dialog text"),
    NULL
  },
  {
    "day",
    '\0',
    POPT_ARG_INT,
    NULL,
    OPTION_DAY,
    N_("Set the calendar day"),
    NULL
  },
  {
    "month",
    '\0',
    POPT_ARG_INT,
    NULL,
    OPTION_MONTH,
    N_("Set the calendar month"),
    NULL
  },
  {
    "year",
    '\0',
    POPT_ARG_INT,
    NULL,
    OPTION_YEAR,
    N_("Set the calendar year"),
    NULL
  },
  {	"date-format",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_DATEFORMAT,
    N_("Set the format for the returned date"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption entry_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "text",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_ENTRYTEXT,
    N_("Set the dialog text"),
    NULL
  },
  {
    "entry-text",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_INPUTTEXT,
    N_("Set the entry text"),
    NULL
  },
  {
    "hide-text",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_HIDETEXT,
    N_("Hide the entry text"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption error_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "text",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_ERRORTEXT,
    N_("Set the dialog text"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption info_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "text",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_INFOTEXT,
    N_("Set the dialog text"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption file_selection_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "filename",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_FILENAME,
    N_("Set the filename"),
    N_("FILENAME")
  },
  POPT_TABLEEND
};

struct poptOption list_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "column",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_COLUMN,
    N_("Set the column header"),
    NULL
  },
  {
    "checklist",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_CHECKLIST,
    N_("Use check boxes for first column"),
    NULL
  },
  {
    "radiolist",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_RADIOLIST,
    N_("Use radio buttons for first column"),
    NULL
  },
  {
    "separator",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_SEPERATOR,
    N_("Set output separator character"),
    NULL
  },
  {
    "editable",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_LISTEDIT,
    N_("Allow changes to text"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption progress_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "text",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_PROGRESSTEXT,
    N_("Set the dialog text"),
    NULL
  },
  {
    "percentage",
    '\0',
    POPT_ARG_INT,
    NULL,
    OPTION_PERCENTAGE,
    N_("Set initial percentage"),
    NULL
  },
  {
    "pulsate",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_PULSATE,
    N_("Pulsate progress bar"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption question_options[] = {
  {
    "text",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_QUESTIONTEXT,
    N_("Set the dialog text"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption text_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "filename",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_TEXTFILENAME,
    N_("Open file"),
    N_("FILENAME")
  },
  {
    "editable",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_TEXTEDIT,
    N_("Allow changes to text"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption warning_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "text",
    '\0',
    POPT_ARG_STRING,
    NULL,
    OPTION_WARNINGTEXT,
    N_("Set the dialog text"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption gtk_options[] = {
  {
    "gdk-debug", 
    '\0', 
    POPT_ARG_STRING, 
    NULL, 
    0,
    N_("Gdk debugging flags to set"), 
    N_("FLAGS")
  }, 
  {
    "gdk-no-debug", 
    '\0', 
    POPT_ARG_STRING, 
    NULL, 
    0, 
    N_("Gdk debugging flags to unset"), 
    N_("FLAGS")
  }, 
  /* X11 only */ 
  {
    "display",
    '\0',
    POPT_ARG_STRING,
    NULL,
    0, 
    N_("X display to use"),
    N_("DISPLAY")
  }, 
#ifdef HAVE_GTK_MULTIHEAD 
  /* X11 & multi-head only */ 
  {
    "screen",
    '\0', 
    POPT_ARG_INT, 
    NULL, 
    0, 
    N_("X screen to use"), 
    N_("SCREEN")
  },
#endif 
  /* X11 only */ 
  {
    "sync", 
    '\0', 
    POPT_ARG_NONE, 
    NULL, 
    0, 
    N_("Make X calls synchronous"),
    NULL
  },
  {
    "name", 
    '\0', 
    POPT_ARG_STRING, 
    NULL, 
    0, 
    N_("Program name as used by the window manager"), 
    N_("NAME")
  }, 
  {
    "class", 
    '\0', 
    POPT_ARG_STRING, 
    NULL, 
    0, 
    N_("Program class as used by the window manager"), 
    N_("CLASS")
  }, 
  /* X11 only */ 
  {
    "gxid-host",
    '\0', 
    POPT_ARG_STRING, 
    NULL, 
    0, 
    NULL, 
    N_("HOST")
  }, 
  /* X11 only */ 
  {
    "gxid-port",
    '\0',
    POPT_ARG_STRING, 
    NULL, 
    0, 
    NULL, 
    N_("PORT")
  }, 
  {
    "gtk-debug", 
    '\0', 
    POPT_ARG_STRING, 
    NULL, 
    0, 
    N_("Gtk+ debugging flags to set"), 
    N_("FLAGS")
  }, 
  { 
    "gtk-no-debug",
    '\0', 
    POPT_ARG_STRING, 
    NULL, 
    0, 
    N_("Gtk+ debugging flags to unset"), 
    N_("FLAGS")
  }, 
  { 
    "g-fatal-warnings", 
    '\0', 
    POPT_ARG_NONE, 
    NULL, 
    0, 
    N_("Make all warnings fatal"), 
    NULL
  }, 
  { 
    "gtk-module", 
    '\0', 
    POPT_ARG_STRING, 
    NULL, 
    0, 
    N_("Load an additional Gtk module"), 
    N_("MODULE")
  },
  POPT_TABLEEND
};

struct poptOption miscellaneous_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_CALLBACK | POPT_CBFLAG_POST,
    zenity_parse_options_callback,
    0,
    NULL,
    NULL
  },
  {
    "about",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_ABOUT,
    N_("About zenity"),
    NULL
  },
  {
    "version",
    '\0',
    POPT_ARG_NONE,
    NULL,
    OPTION_VERSION,
    N_("Print version"),
    NULL
  },
  POPT_TABLEEND
};

struct poptOption application_options[] = {
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    options,
    0,
    N_("Dialog options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    general_options,
    0,
    N_("General options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    calendar_options,
    0,
    N_("Calendar options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    entry_options,
    0,
    N_("Text entry options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    error_options,
    0,
    N_("Error options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    file_selection_options,
    0,
    N_("File selection options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    info_options,
    0,
    N_("Info options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    list_options,
    0,
    N_("List options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    progress_options,
    0,
    N_("Progress options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    question_options,
    0,
    N_("Question options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    text_options,
    0,
    N_("Text options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    warning_options,
    0,
    N_("Warning options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    gtk_options,
    0,
    N_("GTK+ options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    miscellaneous_options,
    0,
    N_("Miscellaneous options"),
    NULL
  },
  {
    NULL,
    '\0',
    POPT_ARG_INCLUDE_TABLE,
    poptHelpOptions,
    0,
    N_("Help options"), 
    NULL
  },
  POPT_TABLEEND
};

ZenityParsingOptions *results;

static void
zenity_init_parsing_options (void) {

  results = g_new0 (ZenityParsingOptions, 1);

  /* Initialize the various dialog structures */
  results->mode = MODE_LAST;
  results->data = g_new0 (ZenityData, 1);
  results->calendar_data = g_new0 (ZenityCalendarData, 1);
  results->msg_data = g_new0 (ZenityMsgData, 1);
  results->file_data = g_new0 (ZenityFileData, 1);
  results->entry_data = g_new0 (ZenityEntryData, 1); 
  results->progress_data = g_new0 (ZenityProgressData, 1); 
  results->text_data = g_new0 (ZenityTextData, 1);
  results->tree_data = g_new0 (ZenityTreeData, 1);

  /* Give some sensible defaults */
  results->data->width = -1;
  results->data->height = -1;
  results->calendar_data->date_format = g_strdup (nl_langinfo (D_FMT));
  results->calendar_data->day = 0;
  results->calendar_data->month = 0;
  results->calendar_data->year = 0;
  results->calendar_data->dialog_text = NULL;
  results->text_data->editable = FALSE;
  results->tree_data->separator = g_strdup ("/");
  results->progress_data->percentage = -1;
  results->progress_data->pulsate = FALSE;
  results->entry_data->visible = TRUE;
  results->tree_data->checkbox = FALSE;
  results->tree_data->radiobox = FALSE;
  results->tree_data->editable = FALSE;
}

static void
zenity_free_parsing_options (void) {

  /* General options */
  if (results->data->dialog_title)
    g_free (results->data->dialog_title);
  if (results->data->window_icon)
    g_free (results->data->window_icon);

  /* Dialog options */
  switch (results->mode) {
    case MODE_CALENDAR:
      if (results->calendar_data->dialog_text)
        g_free (results->calendar_data->dialog_text);
      if (results->calendar_data->date_format)
        g_free (results->calendar_data->date_format);
      break;
    case MODE_ENTRY:
      if (results->entry_data->dialog_text)
        g_free (results->entry_data->dialog_text);
      if (results->entry_data->entry_text)
        g_free (results->entry_data->entry_text);
      break;
    case MODE_ERROR:
    case MODE_QUESTION:
    case MODE_WARNING:
    case MODE_INFO:
      if (results->msg_data->dialog_text)
        g_free (results->msg_data->dialog_text);
      break;
    case MODE_FILE:
      if (results->file_data->uri)
        g_free (results->file_data->uri);
      break;
    case MODE_TEXTINFO:
      if (results->text_data->uri)
        g_free (results->text_data->uri);
      break;
    case MODE_LIST:
      if (results->tree_data->columns)
        g_slist_foreach (results->tree_data->columns, (GFunc) g_free, NULL);
      if (results->tree_data->separator)
        g_free (results->tree_data->separator);
      break;
    default:
      break;
  }
}

gint 
main (gint argc, gchar **argv) {
  ZenityData *general;
  ZenityCalendarData *cal_data;
  poptContext ctx;
  gchar **args;
  gint nextopt, retval;

  bindtextdomain(GETTEXT_PACKAGE, GNOMELOCALEDIR);
  bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
  textdomain(GETTEXT_PACKAGE);

  zenity_init_parsing_options ();

  /* FIXME: popt doesn't like passing stuff through data 
   * but it doesn't seem to cope with the data that I try
   * to pass in, not quite sure why though. If someone knows
   * what I'm doing wrong, we could probably put this back:
   * options[0].descrip = (void*) results; 
   */

  ctx = poptGetContext ("zenity", argc, (const char **)argv, application_options, 0);

  poptReadDefaultConfig(ctx, TRUE);
  while((nextopt = poptGetNextOpt(ctx)) > 0)
    /*nothing*/;

  if (nextopt != -1) {
    g_printerr (_("%s in an invalid option for this dialog. See zenity --help for more details\n"),
                  poptBadOption (ctx, 0));
    zenity_free_parsing_options (); 
    exit (-1); 
  }
  gtk_init (&argc, &argv);

  if (argc < 2) {
    g_printerr (_("You must specify more arguments. See zenity --help for more details\n"));
    zenity_free_parsing_options ();
    exit (-1);
  }

  switch (results->mode) {
    case MODE_CALENDAR:
      zenity_calendar (results->data, results->calendar_data);
      break;
    case MODE_ENTRY:
      zenity_entry (results->data, results->entry_data);
      break;
    case MODE_ERROR:
    case MODE_QUESTION:
    case MODE_WARNING:
    case MODE_INFO:
      zenity_msg (results->data, results->msg_data);
      break;
    case MODE_FILE:
      zenity_fileselection (results->data, results->file_data);
      break;
    case MODE_LIST:
      results->tree_data->data = poptGetArgs (ctx);
      zenity_tree (results->data, results->tree_data);
      break;
    case MODE_PROGRESS:
      zenity_progress (results->data, results->progress_data);
      break;
    case MODE_TEXTINFO:
      zenity_text (results->data, results->text_data);
      break;
    case MODE_ABOUT:
      zenity_about (results->data);
      break;
    case MODE_LAST:
      g_printerr (_("You must specify a dialog type. See 'zenity --help' for details\n"));
      zenity_free_parsing_options ();
      exit (-1);
    default:
      g_assert_not_reached ();
      zenity_free_parsing_options ();
      exit (-1);
  }

  retval = results->data->exit_code;
  poptFreeContext(ctx);
  zenity_free_parsing_options ();
  exit (retval);
}

static void
zenity_error (gchar *string, ZenityError error)
{
  switch (error) {
    case ERROR_DUPLICATE:
      g_printerr (_("%s given twice for the same dialog\n"), string);
      zenity_free_parsing_options ();
      exit (-1);
    case ERROR_SUPPORT:
      g_printerr (_("%s is not supported for this dialog\n"), string);
      zenity_free_parsing_options ();
      exit (-1);
    case ERROR_DIALOG:
      g_printerr (_("Two or more dialog options specified\n"));
      zenity_free_parsing_options ();
      exit (-1);
    default:
      return;
  }
}

static void 
zenity_parse_options_callback (poptContext              ctx,
                               enum poptCallbackReason  reason,
                               const struct poptOption *opt,
                               const char              *arg,
                               void                    *data)
{
  static gboolean parse_option_dateformat = FALSE;
  static gboolean parse_option_separator = FALSE;
  static gint parse_option_text = 0;
  static gint parse_option_file = 0;
  static gint parse_option_editable = 0;

  if (reason == POPT_CALLBACK_REASON_POST)
    return;
  else if (reason != POPT_CALLBACK_REASON_OPTION)
    return;

  switch (opt->val & POPT_ARG_MASK) {

    case OPTION_CALENDAR:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);

      results->mode = MODE_CALENDAR;
      break;
    case OPTION_ENTRY:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);

      results->mode = MODE_ENTRY;
      break;
    case OPTION_ERROR:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);

      results->mode = MODE_ERROR;
      results->msg_data->mode = ZENITY_MSG_ERROR;
      break;
    case OPTION_INFO:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);

      results->mode = MODE_INFO;
      results->msg_data->mode = ZENITY_MSG_INFO;
      break;
    case OPTION_FILE:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);
			
      results->mode = MODE_FILE;
      break;
    case OPTION_LIST:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);

      results->mode = MODE_LIST;
      break;
    case OPTION_PROGRESS:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);
			
      results->mode = MODE_PROGRESS;
      break;
    case OPTION_QUESTION:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);
			
      results->mode = MODE_QUESTION; 
      results->msg_data->mode = ZENITY_MSG_QUESTION; 
      break;
    case OPTION_TEXTINFO:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);

      results->mode = MODE_TEXTINFO; 
      break;
    case OPTION_WARNING:
      if (results->mode != MODE_LAST)
        zenity_error (NULL, ERROR_DIALOG);

      results->mode = MODE_WARNING; 
      results->msg_data->mode = ZENITY_MSG_WARNING; 
      break;
    case OPTION_TITLE:
      if (results->data->dialog_title != NULL)
        zenity_error ("--title", ERROR_DUPLICATE);

      results->data->dialog_title = g_strdup (arg); 
      break; 
    case OPTION_ICON: 
      if (results->data->window_icon != NULL) 
        zenity_error ("--window-icon", ERROR_DUPLICATE); 
      
      results->data->window_icon = g_strdup (arg); 
      break; 
    case OPTION_WIDTH: 
      if (results->data->width != -1) 
        zenity_error ("--width", ERROR_DUPLICATE); 
      
      results->data->width = atoi (arg); 
      break; 
    case OPTION_HEIGHT: 
      if (results->data->height != -1) 
        zenity_error ("--height", ERROR_DUPLICATE); 
      
      results->data->height = atoi (arg); 
      break; 
    case OPTION_CALENDARTEXT: 
    case OPTION_ENTRYTEXT: 
    case OPTION_ERRORTEXT: 
    case OPTION_QUESTIONTEXT: 
    case OPTION_PROGRESSTEXT: 
    case OPTION_WARNINGTEXT: 
      
      /* FIXME: This is an ugly hack because of the way the poptOptions are 
       * ordered above. When you try and use an --option more than once 
       * parse_options_callback gets called for each option. Suckage 
       */

      if (parse_option_text > 6) 
        zenity_error ("--text", ERROR_DUPLICATE); 
      
      switch (results->mode) { 
        case MODE_CALENDAR: 
          results->calendar_data->dialog_text = g_strdup (arg); 
          break; 
        case MODE_ENTRY: 
          results->entry_data->dialog_text = g_strdup (arg); 
          break; 
        case MODE_ERROR: 
        case MODE_QUESTION: 
        case MODE_WARNING: 
        case MODE_INFO: 
          results->msg_data->dialog_text = g_strdup (arg); 
          break; 
        case MODE_PROGRESS: 
          results->progress_data->dialog_text = g_strdup (arg); 
          break; 
        default: 
          zenity_error ("--text", ERROR_SUPPORT); 
      } 
      parse_option_text++; 
      break; 
    case OPTION_DAY: 
      if (results->mode != MODE_CALENDAR) 
        zenity_error ("--day", ERROR_SUPPORT); 
      
      if (results->calendar_data->day > 0) 
        zenity_error ("--day", ERROR_DUPLICATE); 

      results->calendar_data->day = atoi (arg); 
      break; 
    case OPTION_MONTH: 
      if (results->mode != MODE_CALENDAR) 
        zenity_error ("--month", ERROR_SUPPORT); 
      
      if (results->calendar_data->month > 0) 
        zenity_error ("--day", ERROR_DUPLICATE); 
      
      results->calendar_data->month = atoi (arg); 
      break; 
    case OPTION_YEAR: 
      if (results->mode != MODE_CALENDAR) 
        zenity_error ("--year", ERROR_SUPPORT); 
      
      if (results->calendar_data->year > 0) 
        zenity_error ("--year", ERROR_DUPLICATE); 
      
      results->calendar_data->year = atoi (arg); 
      break; 
    case OPTION_DATEFORMAT: 
      if (results->mode != MODE_CALENDAR) 
        zenity_error ("--date-format", ERROR_SUPPORT); 
      
      if (parse_option_dateformat) 
        zenity_error ("--date-format", ERROR_DUPLICATE); 
      
      results->calendar_data->date_format = g_strdup (arg); 
      parse_option_dateformat = TRUE; 
      break; 
    case OPTION_INPUTTEXT: 
      if (results->mode != MODE_ENTRY) 
        zenity_error ("--entry-text", ERROR_SUPPORT); 
      
      if (results->entry_data->entry_text != NULL) 
        zenity_error ("--entry-text", ERROR_DUPLICATE); 
      
      results->entry_data->entry_text = g_strdup (arg); 
      break; 
    case OPTION_HIDETEXT: 
      if (results->mode != MODE_ENTRY) 
        zenity_error ("--hide-text", ERROR_SUPPORT); 
      
      if (!results->entry_data->visible) 
        zenity_error ("--hide-text", ERROR_DUPLICATE); 
      
      results->entry_data->visible = FALSE; 
      break; 
    case OPTION_LISTEDIT: 
    case OPTION_TEXTEDIT: 
      
      /* FIXME: This is an ugly hack because of the way the poptOptions are 
       * ordered above. When you try and use an --option more than once 
       * parse_options_callback gets called for each option. Suckage 
       */ 
      
      if (parse_option_file > 2) 
        zenity_error ("--editable", ERROR_DUPLICATE); 
      
      switch (results->mode) { 
        case MODE_TEXTINFO: 
          results->text_data->editable = TRUE; 
          break; 
        case MODE_LIST: 
          results->tree_data->editable = TRUE; 
          break; 
        default: 
          zenity_error ("--editable", ERROR_SUPPORT); 
      } 
      parse_option_editable++; 
      break; 
    case OPTION_FILENAME: 
    case OPTION_TEXTFILENAME:
      
      /* FIXME: This is an ugly hack because of the way the poptOptions are 
       * ordered above. When you try and use an --option more than once 
       * parse_options_callback gets called for each option. Suckage 
       */ 
      
      if (parse_option_file > 2) 
        zenity_error ("--filename", ERROR_DUPLICATE); 
      
      switch (results->mode) { 
        case MODE_FILE: 
          results->file_data->uri = g_strdup (arg); 
          break; 
        case MODE_TEXTINFO: 
          results->text_data->uri = g_strdup (arg); 
          break; 
        default: 
          zenity_error ("--filename", ERROR_SUPPORT); 
      } 
      parse_option_file++; 
      break; 
    case OPTION_COLUMN: 
      if (results->mode != MODE_LIST) 
        zenity_error ("--column", ERROR_SUPPORT); 
      
      results->tree_data->columns = g_slist_append (results->tree_data->columns, g_strdup (arg)); 
      break; 
    case OPTION_CHECKLIST: 
      if (results->mode != MODE_LIST) 
        zenity_error ("--checkbox", ERROR_SUPPORT); 
      
      if (results->tree_data->checkbox) 
        zenity_error ("--checkbox", ERROR_DUPLICATE); 
      
      results->tree_data->checkbox = TRUE; 
      break; 
    case OPTION_RADIOLIST: 
      if (results->mode != MODE_LIST) 
        zenity_error ("--radiobox", ERROR_SUPPORT); 
      if (results->tree_data->radiobox) 
        zenity_error ("--radiobox", ERROR_DUPLICATE); 
      
      results->tree_data->radiobox = TRUE; 
      break; 
    case OPTION_SEPERATOR: 
      if (results->mode != MODE_LIST) 
        zenity_error ("--separator", ERROR_SUPPORT); 
      
      if (parse_option_separator) 
        zenity_error ("--separator", ERROR_DUPLICATE); 
      
      results->tree_data->separator = g_strdup (arg); 
      parse_option_separator = TRUE; 
      break; 
    case OPTION_PERCENTAGE: 
      if (results->mode != MODE_PROGRESS) 
        zenity_error ("--percentage", ERROR_SUPPORT); 
      
      if (results->progress_data->percentage > -1) 
        zenity_error ("--percentage", ERROR_DUPLICATE); 
      
      results->progress_data->percentage = atoi (arg); 
      break; 
    case OPTION_PULSATE: 
      if (results->mode != MODE_PROGRESS) 
        zenity_error ("--pulsate", ERROR_SUPPORT); 
      
      results->progress_data->pulsate = TRUE; 
      break; 
    case OPTION_ABOUT: 
      if (results->mode != MODE_LAST) 
        zenity_error (NULL, ERROR_DIALOG); 
      
      results->mode = MODE_ABOUT; 
      break; 
    case OPTION_VERSION: 
      if (results->mode != MODE_LAST) 
        zenity_error (NULL, ERROR_DIALOG); 
      zenity_free_parsing_options (); 
      g_print ("%s\n", VERSION); 
      exit (0); 
      break; 
    default: 
      break; 
  } 
}