gntmenuitem.c

   1 /**
   2  * GNT - The GLib Ncurses Toolkit
   3  *
   4  * GNT is the legal property of its developers, whose names are too numerous
   5  * to list here.  Please refer to the COPYRIGHT file distributed with this
   6  * source distribution.
   7  *
   8  * This library is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  21  */
  22
  23 #include "gntmenu.h"
  24 #include "gntmenuitem.h"
  25
  26 enum
  27 {
  28         SIG_ACTIVATE,
  29         SIGS
  30 };
  31 static guint signals[SIGS] = { 0 };
  32
  33 static GObjectClass *parent_class = NULL;
  34
  35 static void
  36 gnt_menuitem_destroy(GObject *obj)
  37 {
  38         GntMenuItem *item = GNT_MENU_ITEM(obj);
  39         g_free(item->text);
  40         item->text = NULL;
  41         if (item->submenu)
  42                 gnt_widget_destroy(GNT_WIDGET(item->submenu));
  43         g_free(item->priv.id);
  44         parent_class->dispose(obj);
  45 }
  46
  47 static void
  48 gnt_menuitem_class_init(GntMenuItemClass *klass)
  49 {
  50         GObjectClass *obj_class = G_OBJECT_CLASS(klass);
  51         parent_class = g_type_class_peek_parent(klass);
  52
  53         obj_class->dispose = gnt_menuitem_destroy;
  54
  55         signals[SIG_ACTIVATE] =
  56                 g_signal_new("activate",
  57                                          G_TYPE_FROM_CLASS(klass),
  58                                          G_SIGNAL_RUN_LAST,
  59                                          0, NULL, NULL,
  60                                          g_cclosure_marshal_VOID__VOID,
  61                                          G_TYPE_NONE, 0);
  62 }
  63
  64 static void
  65 gnt_menuitem_init(GTypeInstance *instance, gpointer klass)
  66 {
  67 }
  68
  69 /******************************************************************************
  70  * GntMenuItem API
  71  *****************************************************************************/
  72 GType
  73 gnt_menuitem_get_gtype(void)
  74 {
  75         static GType type = 0;
  76
  77         if(type == 0)
  78         {
  79                 static const GTypeInfo info = {
  80                         sizeof(GntMenuItemClass),
  81                         NULL,                                   /* base_init            */
  82                         NULL,                                   /* base_finalize        */
  83                         (GClassInitFunc)gnt_menuitem_class_init,
  84                         NULL,                                   /* class_finalize       */
  85                         NULL,                                   /* class_data           */
  86                         sizeof(GntMenuItem),
  87                         0,                                              /* n_preallocs          */
  88                         gnt_menuitem_init,                      /* instance_init        */
  89                         NULL                                    /* value_table          */
  90                 };
  91
  92                 type = g_type_register_static(G_TYPE_OBJECT,
  93                                                                           "GntMenuItem",
  94                                                                           &info, 0);
  95         }
  96
  97         return type;
  98 }
  99
 100 GntMenuItem *gnt_menuitem_new(const char *text)
 101 {
 102         GObject *item = g_object_new(GNT_TYPE_MENU_ITEM, NULL);
 103         GntMenuItem *menuitem = GNT_MENU_ITEM(item);
 104
 105         menuitem->text = g_strdup(text);
 106
 107         return menuitem;
 108 }
 109
 110 void gnt_menuitem_set_callback(GntMenuItem *item, GntMenuItemCallback callback, gpointer data)
 111 {
 112         item->callback = callback;
 113         item->callbackdata = data;
 114 }
 115
 116 void gnt_menuitem_set_submenu(GntMenuItem *item, GntMenu *menu)
 117 {
 118         if (item->submenu)
 119                 gnt_widget_destroy(GNT_WIDGET(item->submenu));
 120         item->submenu = menu;
 121 }
 122
 123 GntMenu *gnt_menuitem_get_submenu(GntMenuItem *item)
 124 {
 125         return item->submenu;
 126 }
 127
 128 void gnt_menuitem_set_trigger(GntMenuItem *item, char trigger)
 129 {
 130         item->priv.trigger = trigger;
 131 }
 132
 133 char gnt_menuitem_get_trigger(GntMenuItem *item)
 134 {
 135         return item->priv.trigger;
 136 }
 137
 138 void gnt_menuitem_set_id(GntMenuItem *item, const char *id)
 139 {
 140         g_free(item->priv.id);
 141         item->priv.id = g_strdup(id);
 142 }
 143
 144 const char * gnt_menuitem_get_id(GntMenuItem *item)
 145 {
 146         return item->priv.id;
 147 }
 148
 149 gboolean gnt_menuitem_activate(GntMenuItem *item)
 150 {
 151         g_signal_emit(item, signals[SIG_ACTIVATE], 0);
 152         if (item->callback) {
 153                 item->callback(item, item->callbackdata);
 154                 return TRUE;
 155         }
 156         return FALSE;
 157 }
 158