src/support.c

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