libempathy-gtk/empathy-theme-utils.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007 Imendio AB
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public
  16  * License along with this program; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <config.h>
  22
  23 #include <gtk/gtktexttag.h>
  24
  25 #include "empathy-theme-utils.h"
  26
  27 void
  28 empathy_theme_utils_ensure_tag_by_name (GtkTextBuffer *buffer, const gchar *name)
  29 {
  30         GtkTextTagTable *table;
  31         GtkTextTag      *tag;
  32
  33         table = gtk_text_buffer_get_tag_table (buffer);
  34         tag = gtk_text_tag_table_lookup (table, name);
  35
  36         if (!tag) {
  37                 gtk_text_buffer_create_tag (buffer,
  38                                             name,
  39                                             NULL);
  40         }
  41 }
  42
  43 GtkTextTag *
  44 empathy_theme_utils_init_tag_by_name (GtkTextTagTable *table, const gchar *name)
  45 {
  46         GtkTextTag *tag;
  47
  48         tag = gtk_text_tag_table_lookup (table, name);
  49
  50         if (!tag) {
  51                 return gtk_text_tag_new (name);
  52         }
  53
  54         /* Clear the old values so that we don't affect the new theme. */
  55         g_object_set (tag,
  56                       "background-set", FALSE,
  57                       "foreground-set", FALSE,
  58                       "invisible-set", FALSE,
  59                       "justification-set", FALSE,
  60                       "paragraph-background-set", FALSE,
  61                       "pixels-above-lines-set", FALSE,
  62                       "pixels-below-lines-set", FALSE,
  63                       "rise-set", FALSE,
  64                       "scale-set", FALSE,
  65                       "size-set", FALSE,
  66                       "style-set", FALSE,
  67                       "weight-set", FALSE,
  68                       NULL);
  69
  70         return tag;
  71 }
  72
  73 void
  74 empathy_theme_utils_add_tag (GtkTextTagTable *table, GtkTextTag *tag)
  75 {
  76         gchar      *name;
  77         GtkTextTag *check_tag;
  78
  79         g_object_get (tag, "name", &name, NULL);
  80         check_tag = gtk_text_tag_table_lookup (table, name);
  81         g_free (name);
  82         if (check_tag) {
  83                 return;
  84         }
  85
  86         gtk_text_tag_table_add (table, tag);
  87
  88         g_object_unref (tag);
  89 }
  90