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);
47 _gtk_tree_data_list_free (GtkTreeDataList *list,
48 GType *column_headers)
50 GtkTreeDataList *tmp, *next;
58 if (g_type_is_a (column_headers [i], G_TYPE_STRING))
59 g_free ((gchar *) tmp->data.v_pointer);
60 else if (g_type_is_a (column_headers [i], G_TYPE_OBJECT))
61 g_object_unref (G_OBJECT (tmp->data.v_pointer));
62 else if (g_type_is_a (column_headers [i], G_TYPE_BOXED))
63 g_boxed_free (column_headers [i], (gpointer) tmp->data.v_pointer);
65 g_mem_chunk_free (tree_chunk, tmp);
72 _gtk_tree_data_list_check_type (GType type)
75 static GType type_list[] =
93 if (! G_TYPE_IS_VALUE_TYPE (type))
97 while (type_list[i] != G_TYPE_INVALID)
99 if (g_type_is_a (type, type_list[i]))
107 _gtk_tree_data_list_node_to_value (GtkTreeDataList *list,
111 g_value_init (value, type);
113 switch (G_TYPE_FUNDAMENTAL (type))
116 g_value_set_boolean (value, (gboolean) list->data.v_int);
119 g_value_set_char (value, (gchar) list->data.v_char);
122 g_value_set_uchar (value, (guchar) list->data.v_uchar);
125 g_value_set_int (value, (gint) list->data.v_int);
128 g_value_set_uint (value, (guint) list->data.v_uint);
131 g_value_set_enum (value, list->data.v_int);
134 g_value_set_flags (value, (int) list->data.v_int);
137 g_value_set_float (value, (gfloat) list->data.v_float);
140 g_value_set_double (value, (gdouble) list->data.v_double);
143 g_value_set_string (value, (gchar *) list->data.v_pointer);
146 g_value_set_pointer (value, (gpointer) list->data.v_pointer);
149 g_value_set_boxed (value, (gpointer) list->data.v_pointer);
152 g_value_set_object (value, (GObject *) list->data.v_pointer);
155 g_warning ("%s: Unsupported type (%s) retrieved.", G_STRLOC, g_type_name (value->g_type));
161 _gtk_tree_data_list_value_to_node (GtkTreeDataList *list,
164 switch (G_TYPE_FUNDAMENTAL (G_VALUE_TYPE (value)))
167 list->data.v_int = g_value_get_boolean (value);
170 list->data.v_char = g_value_get_char (value);
173 list->data.v_uchar = g_value_get_uchar (value);
176 list->data.v_int = g_value_get_int (value);
179 list->data.v_int = g_value_get_enum (value);
182 list->data.v_int = g_value_get_flags (value);
185 list->data.v_uint = g_value_get_uint (value);
188 list->data.v_pointer = g_value_get_pointer (value);
191 list->data.v_float = g_value_get_float (value);
194 list->data.v_double = g_value_get_double (value);
197 list->data.v_pointer = g_value_dup_string (value);
200 list->data.v_pointer = g_value_dup_object (value);
203 list->data.v_pointer = g_value_dup_boxed (value);
206 g_warning ("%s: Unsupported type (%s) stored.", G_STRLOC, g_type_name (G_VALUE_TYPE (value)));
212 _gtk_tree_data_list_node_copy (GtkTreeDataList *list,
215 GtkTreeDataList *new_list;
217 g_return_val_if_fail (list != NULL, NULL);
219 new_list = _gtk_tree_data_list_alloc ();
220 new_list->next = NULL;
222 switch (G_TYPE_FUNDAMENTAL (type))
232 new_list->data = list->data;
235 new_list->data.v_pointer = g_strdup (list->data.v_pointer);
238 new_list->data.v_pointer = list->data.v_pointer;
239 if (new_list->data.v_pointer)
240 g_object_ref (G_OBJECT (new_list->data.v_pointer));
243 if (list->data.v_pointer)
244 new_list->data.v_pointer = g_boxed_copy (type, list->data.v_pointer);
246 new_list->data.v_pointer = NULL;
249 g_warning ("Unsupported node type (%s) copied.", g_type_name (type));
257 gtk_tree_data_list_compare_func (GtkTreeModel *model,
262 gint column = GPOINTER_TO_INT (user_data);
263 GType type = gtk_tree_model_get_column_type (model, column);
264 GValue a_value = {0, };
265 GValue b_value = {0, };
269 gtk_tree_model_get_value (model, a, column, &a_value);
270 gtk_tree_model_get_value (model, b, column, &b_value);
272 switch (G_TYPE_FUNDAMENTAL (type))
275 retval = (g_value_get_int (&a_value) < g_value_get_int (&b_value));
278 retval = (g_value_get_char (&a_value) < g_value_get_char (&b_value));
281 retval = (g_value_get_uchar (&a_value) < g_value_get_uchar (&b_value));
284 retval = (g_value_get_int (&a_value) < g_value_get_int (&b_value));
287 retval = (g_value_get_uint (&a_value) < g_value_get_uint (&b_value));
290 /* this is somewhat bogus. */
291 retval = (g_value_get_int (&a_value) < g_value_get_int (&b_value));
294 retval = (g_value_get_uint (&a_value) < g_value_get_uint (&b_value));
297 retval = (g_value_get_float (&a_value) < g_value_get_float (&b_value));
300 retval = (g_value_get_double (&a_value) < g_value_get_double (&b_value));
303 stra = g_value_get_string (&a_value);
304 strb = g_value_get_string (&b_value);
309 retval = strcmp (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)