2 * Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library 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 GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
19 * This file contains code shared between GtkTreeStore and GtkListStore. Please
23 #include "gtktreedatalist.h"
25 static GMemChunk *tree_chunk = NULL;
26 #define TREE_CHUNK_PREALLOCS 64
31 _gtk_tree_data_list_alloc (void)
33 GtkTreeDataList *list;
35 if (tree_chunk == NULL)
36 tree_chunk = g_mem_chunk_new ("treedatalist mem chunk",
37 sizeof (GtkTreeDataList),
38 sizeof (GtkTreeDataList) * TREE_CHUNK_PREALLOCS,
41 list = g_chunk_new (GtkTreeDataList, tree_chunk);
42 memset (list, 0, sizeof (GtkTreeDataList));
48 _gtk_tree_data_list_free (GtkTreeDataList *list,
49 GType *column_headers)
51 GtkTreeDataList *tmp, *next;
59 if (g_type_is_a (column_headers [i], G_TYPE_STRING))
60 g_free ((gchar *) tmp->data.v_pointer);
61 else if (g_type_is_a (column_headers [i], G_TYPE_OBJECT) && tmp->data.v_pointer != NULL)
62 g_object_unref (G_OBJECT (tmp->data.v_pointer));
63 else if (g_type_is_a (column_headers [i], G_TYPE_BOXED) && tmp->data.v_pointer != NULL)
64 g_boxed_free (column_headers [i], (gpointer) tmp->data.v_pointer);
66 g_mem_chunk_free (tree_chunk, tmp);
73 _gtk_tree_data_list_check_type (GType type)
76 static GType type_list[] =
94 if (! G_TYPE_IS_VALUE_TYPE (type))
98 while (type_list[i] != G_TYPE_INVALID)
100 if (g_type_is_a (type, type_list[i]))
109 _gtk_tree_data_list_node_to_value (GtkTreeDataList *list,
113 g_value_init (value, type);
115 switch (G_TYPE_FUNDAMENTAL (type))
118 g_value_set_boolean (value, (gboolean) list->data.v_int);
121 g_value_set_char (value, (gchar) list->data.v_char);
124 g_value_set_uchar (value, (guchar) list->data.v_uchar);
127 g_value_set_int (value, (gint) list->data.v_int);
130 g_value_set_uint (value, (guint) list->data.v_uint);
133 g_value_set_enum (value, list->data.v_int);
136 g_value_set_flags (value, (int) list->data.v_int);
139 g_value_set_float (value, (gfloat) list->data.v_float);
142 g_value_set_double (value, (gdouble) list->data.v_double);
145 g_value_set_string (value, (gchar *) list->data.v_pointer);
148 g_value_set_pointer (value, (gpointer) list->data.v_pointer);
151 g_value_set_boxed (value, (gpointer) list->data.v_pointer);
154 g_value_set_object (value, (GObject *) list->data.v_pointer);
157 g_warning ("%s: Unsupported type (%s) retrieved.", G_STRLOC, g_type_name (value->g_type));
163 _gtk_tree_data_list_value_to_node (GtkTreeDataList *list,
166 switch (G_TYPE_FUNDAMENTAL (G_VALUE_TYPE (value)))
169 list->data.v_int = g_value_get_boolean (value);
172 list->data.v_char = g_value_get_char (value);
175 list->data.v_uchar = g_value_get_uchar (value);
178 list->data.v_int = g_value_get_int (value);
181 list->data.v_int = g_value_get_enum (value);
184 list->data.v_int = g_value_get_flags (value);
187 list->data.v_uint = g_value_get_uint (value);
190 list->data.v_pointer = g_value_get_pointer (value);
193 list->data.v_float = g_value_get_float (value);
196 list->data.v_double = g_value_get_double (value);
199 list->data.v_pointer = g_value_dup_string (value);
202 list->data.v_pointer = g_value_dup_object (value);
205 list->data.v_pointer = g_value_dup_boxed (value);
208 g_warning ("%s: Unsupported type (%s) stored.", G_STRLOC, g_type_name (G_VALUE_TYPE (value)));
214 _gtk_tree_data_list_node_copy (GtkTreeDataList *list,
217 GtkTreeDataList *new_list;
219 g_return_val_if_fail (list != NULL, NULL);
221 new_list = _gtk_tree_data_list_alloc ();
222 new_list->next = NULL;
224 switch (G_TYPE_FUNDAMENTAL (type))
234 new_list->data = list->data;
237 new_list->data.v_pointer = g_strdup (list->data.v_pointer);
240 new_list->data.v_pointer = list->data.v_pointer;
241 if (new_list->data.v_pointer)
242 g_object_ref (G_OBJECT (new_list->data.v_pointer));
245 if (list->data.v_pointer)
246 new_list->data.v_pointer = g_boxed_copy (type, list->data.v_pointer);
248 new_list->data.v_pointer = NULL;
251 g_warning ("Unsupported node type (%s) copied.", g_type_name (type));
259 gtk_tree_data_list_compare_func (GtkTreeModel *model,
264 gint column = GPOINTER_TO_INT (user_data);
265 GType type = gtk_tree_model_get_column_type (model, column);
266 GValue a_value = {0, };
267 GValue b_value = {0, };
269 const gchar *stra, *strb;
271 gtk_tree_model_get_value (model, a, column, &a_value);
272 gtk_tree_model_get_value (model, b, column, &b_value);
274 switch (G_TYPE_FUNDAMENTAL (type))
277 retval = (g_value_get_int (&a_value) < g_value_get_int (&b_value));
280 retval = (g_value_get_char (&a_value) < g_value_get_char (&b_value));
283 retval = (g_value_get_uchar (&a_value) < g_value_get_uchar (&b_value));
286 retval = (g_value_get_int (&a_value) < g_value_get_int (&b_value));
289 retval = (g_value_get_uint (&a_value) < g_value_get_uint (&b_value));
292 /* this is somewhat bogus. */
293 retval = (g_value_get_int (&a_value) < g_value_get_int (&b_value));
296 retval = (g_value_get_uint (&a_value) < g_value_get_uint (&b_value));
299 retval = (g_value_get_float (&a_value) < g_value_get_float (&b_value));
302 retval = (g_value_get_double (&a_value) < g_value_get_double (&b_value));
305 stra = g_value_get_string (&a_value);
306 strb = g_value_get_string (&b_value);
307 if (stra == NULL) stra = "";
308 if (strb == NULL) strb = "";
309 retval = g_utf8_collate (stra, strb);
315 g_warning ("Attempting to sort on invalid type %s\n", g_type_name (type));
320 g_value_unset (&a_value);
321 g_value_unset (&b_value);
328 _gtk_tree_data_list_header_new (gint n_columns,
331 GList *retval = NULL;
335 for (i = 0; i < n_columns; i ++)
337 GtkTreeDataSortHeader *header;
339 header = g_new (GtkTreeDataSortHeader, 1);
341 retval = g_list_prepend (retval, header);
342 header->sort_column_id = i;
343 header->func = gtk_tree_data_list_compare_func;
344 header->destroy = NULL;
345 header->data = GINT_TO_POINTER (i);
347 return g_list_reverse (retval);
351 _gtk_tree_data_list_header_free (GList *list)
355 for (tmp = list; tmp; tmp = tmp->next)
357 GtkTreeDataSortHeader *header = (GtkTreeDataSortHeader *) tmp->data;
360 (* header->destroy) (header->data);
367 GtkTreeDataSortHeader *
368 _gtk_tree_data_list_get_header (GList *header_list,
371 GtkTreeDataSortHeader *header = NULL;
373 for (; header_list; header_list = header_list->next)
375 header = (GtkTreeDataSortHeader*) header_list->data;
376 if (header->sort_column_id == sort_column_id)