pintos-os.org Git - pspp/blob - src/ui/gui/psppire-window-register.c

   1 /* PSPPIRE - a graphical user interface for PSPP.
   2    Copyright (C) 2008 Free Software Foundation
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 #include <config.h>
  18
  19 #include "psppire-window-register.h"
  20
  21 static void psppire_window_register_finalize        (GObject   *object);
  22 static void psppire_window_register_dispose        (GObject   *object);
  23
  24 static GObjectClass *parent_class = NULL;
  25
  26
  27 enum  {
  28   INSERTED,
  29   REMOVED,
  30   n_SIGNALS
  31 };
  32
  33 static guint signals [n_SIGNALS];
  34
  35 G_DEFINE_TYPE (PsppireWindowRegister, psppire_window_register, G_TYPE_OBJECT)
  36
  37 static void
  38 psppire_window_register_finalize (GObject *object)
  39 {
  40 }
  41
  42 static void
  43 psppire_window_register_dispose  (GObject *object)
  44 {
  45 }
  46
  47 static PsppireWindowRegister *the_instance = NULL;
  48
  49 static GObject*
  50 psppire_window_register_construct   (GType                  type,
  51                                      guint                  n_construct_params,
  52                                      GObjectConstructParam *construct_params)
  53 {
  54   GObject *object;
  55
  56   if (!the_instance)
  57     {
  58       object = G_OBJECT_CLASS (parent_class)->constructor (type,
  59                                                            n_construct_params,
  60                                                            construct_params);
  61       the_instance = PSPPIRE_WINDOW_REGISTER (object);
  62     }
  63   else
  64     object = g_object_ref (G_OBJECT (the_instance));
  65
  66   return object;
  67 }
  68
  69 static void
  70 psppire_window_register_class_init (PsppireWindowRegisterClass *class)
  71 {
  72   GObjectClass *object_class;
  73
  74   parent_class = g_type_class_peek_parent (class);
  75   object_class = G_OBJECT_CLASS (class);
  76
  77   object_class->finalize = psppire_window_register_finalize;
  78   object_class->dispose = psppire_window_register_dispose;
  79   object_class->constructor = psppire_window_register_construct;
  80
  81   signals [INSERTED] =
  82     g_signal_new ("inserted",
  83                   G_TYPE_FROM_CLASS (class),
  84                   G_SIGNAL_RUN_FIRST,
  85                   0,
  86                   NULL, NULL,
  87                   g_cclosure_marshal_VOID__POINTER,
  88                   G_TYPE_NONE,
  89                   1,
  90                   G_TYPE_POINTER);
  91
  92   signals [REMOVED] =
  93     g_signal_new ("removed",
  94                   G_TYPE_FROM_CLASS (class),
  95                   G_SIGNAL_RUN_FIRST,
  96                   0,
  97                   NULL, NULL,
  98                   g_cclosure_marshal_VOID__POINTER,
  99                   G_TYPE_NONE,
 100                   1,
 101                   G_TYPE_POINTER);
 102 }
 103
 104 static void
 105 psppire_window_register_init (PsppireWindowRegister *window_register)
 106 {
 107   window_register->name_table = g_hash_table_new (g_str_hash, g_str_equal);
 108 }
 109
 110 void
 111 psppire_window_register_insert (PsppireWindowRegister *wr, PsppireWindow *window, const gchar *name)
 112 {
 113   g_hash_table_insert (wr->name_table, (gpointer) name, window);
 114
 115   g_signal_emit (wr, signals[INSERTED], 0, name);
 116 }
 117
 118 void
 119 psppire_window_register_remove (PsppireWindowRegister *wr, const gchar *name)
 120 {
 121   g_hash_table_remove (wr->name_table, (gpointer) name);
 122   g_signal_emit (wr, signals[REMOVED], 0, name);
 123 }
 124
 125 PsppireWindow *
 126 psppire_window_register_lookup (PsppireWindowRegister *wr, const gchar *name)
 127 {
 128   return g_hash_table_lookup (wr->name_table, name);
 129 }
 130
 131 void
 132 psppire_window_register_foreach (PsppireWindowRegister *wr,
 133                                  GHFunc func, gpointer data)
 134 {
 135   g_hash_table_foreach (wr->name_table, func, data);
 136 }
 137
 138 PsppireWindowRegister *
 139 psppire_window_register_new (void)
 140 {
 141   return g_object_new (psppire_window_register_get_type (), NULL);
 142 }
 143
 144
 145 gint
 146 psppire_window_register_n_items (PsppireWindowRegister *wr)
 147 {
 148   return g_hash_table_size (wr->name_table);
 149 }