src/support.c

   1 /*----------------------------------------------------------------------
   2
   3   gpiv - Graphic program for Particle Image Velocimetry, based on gtk/gnome
   4           libraries.
   5
   6    Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008
   7    Gerber van der Graaf
   8
   9    This file is part of gpiv.
  10
  11    Gpiv is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 2, or (at your option)
  14    any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program; if not, write to the Free Software Foundation,
  23    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  24
  25 ----------------------------------------------------------------------*/
  26
  27 /*
  28  * $Log: support.c,v $
  29  * Revision 1.3  2007-06-06 17:00:48  gerber
  30  * Retreives images/data from URI using Gnome Virtual File System.
  31  *
  32  * Revision 1.2  2006/01/31 14:28:13  gerber
  33  * version 0.3.0
  34  *
  35  * Revision 1.1.1.1  2003/06/17 17:10:52  gerber
  36  * Imported gpiv
  37  *
  38  */
  39
  40 #ifdef HAVE_CONFIG_H
  41 #  include <config.h>
  42 #endif
  43
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <unistd.h>
  47 #include <string.h>
  48 #include <stdio.h>
  49
  50 #include <gnome.h>
  51
  52 #include "support.h"
  53 #include "gpiv_gui.h"
  54
  55 GtkWidget*
  56 lookup_widget                          (GtkWidget       *widget,
  57                                         const gchar     *widget_name)
  58 {
  59   GtkWidget *parent, *found_widget;
  60
  61   for (;;)
  62     {
  63       if (GTK_IS_MENU (widget))
  64         parent = gtk_menu_get_attach_widget (GTK_MENU (widget));
  65       else
  66         parent = widget->parent;
  67       if (!parent)
  68         parent = (GtkWidget*) g_object_get_data (G_OBJECT (widget), "GladeParentKey");
  69       if (parent == NULL)
  70         break;
  71       widget = parent;
  72     }
  73
  74   found_widget = (GtkWidget*) g_object_get_data (G_OBJECT (widget),
  75                                                  widget_name);
  76   if (!found_widget)
  77     g_warning ("Widget not found: %s", widget_name);
  78   return found_widget;
  79 }
  80
  81 /* This is an internally used function to create pixmaps. */
  82 GtkWidget*
  83 create_pixmap                          (GtkWidget       *widget,
  84                                         const gchar     *filename)
  85 {
  86   GtkWidget *pixmap;
  87   gchar *pathname;
  88
  89   if (!filename || !filename[0])
  90       return gtk_image_new ();
  91
  92   pathname = gnome_program_locate_file (NULL, GNOME_FILE_DOMAIN_APP_PIXMAP,
  93                                         filename, TRUE, NULL);
  94   if (!pathname)
  95     {
  96       g_warning (_("Couldn't find pixmap file: %s"), filename);
  97       return gtk_image_new ();
  98     }
  99
 100   pixmap = gtk_image_new_from_file (pathname);
 101   g_free (pathname);
 102   return pixmap;
 103 }
 104
 105 /* This is an internally used function to create pixmaps. */
 106 GdkPixbuf*
 107 create_pixbuf                          (const gchar     *filename)
 108 {
 109   gchar *pathname = NULL;
 110   GdkPixbuf *pixbuf;
 111   GError *error = NULL;
 112
 113   if (!filename || !filename[0])
 114       return NULL;
 115
 116   pathname = gnome_program_locate_file (NULL, GNOME_FILE_DOMAIN_APP_PIXMAP,
 117                                         filename, TRUE, NULL);
 118
 119   if (!pathname)
 120     {
 121       g_warning (_("Couldn't find pixmap file: %s"), filename);
 122       return NULL;
 123     }
 124
 125   pixbuf = gdk_pixbuf_new_from_file (pathname, &error);
 126   if (!pixbuf)
 127     {
 128       fprintf (stderr, "Failed to load pixbuf file: %s: %s\n",
 129                pathname, error->message);
 130       g_error_free (error);
 131     }
 132   g_free (pathname);
 133   return pixbuf;
 134 }
 135
 136 /* This is used to set ATK action descriptions. */
 137 void
 138 glade_set_atk_action_description       (AtkAction       *action,
 139                                         const gchar     *action_name,
 140                                         const gchar     *description)
 141 {
 142   gint n_actions, i;
 143
 144   n_actions = atk_action_get_n_actions (action);
 145   for (i = 0; i < n_actions; i++)
 146     {
 147       if (!strcmp (atk_action_get_name (action, i), action_name))
 148         atk_action_set_description (action, i, description);
 149     }
 150 }
 151