gtktreedatalist.c 14.7 KB
Newer Older
1
/* gtktreedatalist.c
2 3 4 5 6 7 8 9 10 11 12 13 14
 * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
Javier Jardón's avatar
Javier Jardón committed
15
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
16 17 18
 * 
 * This file contains code shared between GtkTreeStore and GtkListStore.  Please
 * do not use it.
19 20
 */

21
#include "config.h"
22
#include "gtktreedatalist.h"
23
#include <string.h>
24

25 26 27
/* node allocation
 */
GtkTreeDataList *
28
_gtk_tree_data_list_alloc (void)
29 30 31
{
  GtkTreeDataList *list;

32
  list = g_slice_new0 (GtkTreeDataList);
33 34 35 36 37

  return list;
}

void
38 39
_gtk_tree_data_list_free (GtkTreeDataList *list,
			  GType           *column_headers)
40
{
41
  GtkTreeDataList *tmp, *next;
42 43
  gint i = 0;

44 45 46
  tmp = list;

  while (tmp)
47
    {
48
      next = tmp->next;
49 50
      if (g_type_is_a (column_headers [i], G_TYPE_STRING))
	g_free ((gchar *) tmp->data.v_pointer);
51
      else if (g_type_is_a (column_headers [i], G_TYPE_OBJECT) && tmp->data.v_pointer != NULL)
Manish Singh's avatar
Manish Singh committed
52
	g_object_unref (tmp->data.v_pointer);
53
      else if (g_type_is_a (column_headers [i], G_TYPE_BOXED) && tmp->data.v_pointer != NULL)
54
	g_boxed_free (column_headers [i], (gpointer) tmp->data.v_pointer);
55 56
      else if (g_type_is_a (column_headers [i], G_TYPE_VARIANT) && tmp->data.v_pointer != NULL)
	g_variant_unref ((gpointer) tmp->data.v_pointer);
57

58
      g_slice_free (GtkTreeDataList, tmp);
59
      i++;
60
      tmp = next;
61
    }
62 63
}

64 65 66 67
gboolean
_gtk_tree_data_list_check_type (GType type)
{
  gint i = 0;
68
  static const GType type_list[] =
69 70 71 72 73 74
  {
    G_TYPE_BOOLEAN,
    G_TYPE_CHAR,
    G_TYPE_UCHAR,
    G_TYPE_INT,
    G_TYPE_UINT,
Kristian Rietveld's avatar
Kristian Rietveld committed
75 76 77 78
    G_TYPE_LONG,
    G_TYPE_ULONG,
    G_TYPE_INT64,
    G_TYPE_UINT64,
79 80 81 82 83 84 85 86
    G_TYPE_ENUM,
    G_TYPE_FLAGS,
    G_TYPE_FLOAT,
    G_TYPE_DOUBLE,
    G_TYPE_STRING,
    G_TYPE_POINTER,
    G_TYPE_BOXED,
    G_TYPE_OBJECT,
87
    G_TYPE_VARIANT,
88 89 90
    G_TYPE_INVALID
  };

91 92 93 94
  if (! G_TYPE_IS_VALUE_TYPE (type))
    return FALSE;


95 96 97 98 99 100 101 102 103
  while (type_list[i] != G_TYPE_INVALID)
    {
      if (g_type_is_a (type, type_list[i]))
	return TRUE;
      i++;
    }
  return FALSE;
}

104 105 106 107 108 109 110 111 112 113 114 115
static inline GType
get_fundamental_type (GType type)
{
  GType result;

  result = G_TYPE_FUNDAMENTAL (type);

  if (result == G_TYPE_INTERFACE)
    {
      if (g_type_is_a (type, G_TYPE_OBJECT))
	result = G_TYPE_OBJECT;
    }
116

117 118
  return result;
}
119
void
120 121 122
_gtk_tree_data_list_node_to_value (GtkTreeDataList *list,
				   GType            type,
				   GValue          *value)
123 124 125
{
  g_value_init (value, type);

126
  switch (get_fundamental_type (type))
127 128 129 130 131
    {
    case G_TYPE_BOOLEAN:
      g_value_set_boolean (value, (gboolean) list->data.v_int);
      break;
    case G_TYPE_CHAR:
132
      g_value_set_schar (value, (gchar) list->data.v_char);
133 134 135 136 137 138 139 140 141 142
      break;
    case G_TYPE_UCHAR:
      g_value_set_uchar (value, (guchar) list->data.v_uchar);
      break;
    case G_TYPE_INT:
      g_value_set_int (value, (gint) list->data.v_int);
      break;
    case G_TYPE_UINT:
      g_value_set_uint (value, (guint) list->data.v_uint);
      break;
Daniel Elstner's avatar
Daniel Elstner committed
143 144 145 146 147 148 149 150 151 152 153 154
    case G_TYPE_LONG:
      g_value_set_long (value, list->data.v_long);
      break;
    case G_TYPE_ULONG:
      g_value_set_ulong (value, list->data.v_ulong);
      break;
    case G_TYPE_INT64:
      g_value_set_int64 (value, list->data.v_int64);
      break;
    case G_TYPE_UINT64:
      g_value_set_uint64 (value, list->data.v_uint64);
      break;
155 156 157 158
    case G_TYPE_ENUM:
      g_value_set_enum (value, list->data.v_int);
      break;
    case G_TYPE_FLAGS:
Daniel Elstner's avatar
Daniel Elstner committed
159
      g_value_set_flags (value, list->data.v_uint);
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
      break;
    case G_TYPE_FLOAT:
      g_value_set_float (value, (gfloat) list->data.v_float);
      break;
    case G_TYPE_DOUBLE:
      g_value_set_double (value, (gdouble) list->data.v_double);
      break;
    case G_TYPE_STRING:
      g_value_set_string (value, (gchar *) list->data.v_pointer);
      break;
    case G_TYPE_POINTER:
      g_value_set_pointer (value, (gpointer) list->data.v_pointer);
      break;
    case G_TYPE_BOXED:
      g_value_set_boxed (value, (gpointer) list->data.v_pointer);
      break;
176 177 178
    case G_TYPE_VARIANT:
      g_value_set_variant (value, (gpointer) list->data.v_pointer);
      break;
179 180 181 182 183 184 185
    case G_TYPE_OBJECT:
      g_value_set_object (value, (GObject *) list->data.v_pointer);
      break;
    default:
      g_warning ("%s: Unsupported type (%s) retrieved.", G_STRLOC, g_type_name (value->g_type));
      break;
    }
186 187 188
}

void
189 190
_gtk_tree_data_list_value_to_node (GtkTreeDataList *list,
				   GValue          *value)
191
{
192
  switch (get_fundamental_type (G_VALUE_TYPE (value)))
193 194 195 196 197
    {
    case G_TYPE_BOOLEAN:
      list->data.v_int = g_value_get_boolean (value);
      break;
    case G_TYPE_CHAR:
198
      list->data.v_char = g_value_get_schar (value);
199 200 201 202 203 204 205
      break;
    case G_TYPE_UCHAR:
      list->data.v_uchar = g_value_get_uchar (value);
      break;
    case G_TYPE_INT:
      list->data.v_int = g_value_get_int (value);
      break;
Daniel Elstner's avatar
Daniel Elstner committed
206 207 208 209 210 211 212 213 214 215 216 217 218 219 220
    case G_TYPE_UINT:
      list->data.v_uint = g_value_get_uint (value);
      break;
    case G_TYPE_LONG:
      list->data.v_long = g_value_get_long (value);
      break;
    case G_TYPE_ULONG:
      list->data.v_ulong = g_value_get_ulong (value);
      break;
    case G_TYPE_INT64:
      list->data.v_int64 = g_value_get_int64 (value);
      break;
    case G_TYPE_UINT64:
      list->data.v_uint64 = g_value_get_uint64 (value);
      break;
221 222 223 224
    case G_TYPE_ENUM:
      list->data.v_int = g_value_get_enum (value);
      break;
    case G_TYPE_FLAGS:
Daniel Elstner's avatar
Daniel Elstner committed
225
      list->data.v_uint = g_value_get_flags (value);
226 227 228 229 230 231 232 233 234 235 236
      break;
    case G_TYPE_POINTER:
      list->data.v_pointer = g_value_get_pointer (value);
      break;
    case G_TYPE_FLOAT:
      list->data.v_float = g_value_get_float (value);
      break;
    case G_TYPE_DOUBLE:
      list->data.v_double = g_value_get_double (value);
      break;
    case G_TYPE_STRING:
237
      g_free (list->data.v_pointer);
238 239 240
      list->data.v_pointer = g_value_dup_string (value);
      break;
    case G_TYPE_OBJECT:
241 242
      if (list->data.v_pointer)
	g_object_unref (list->data.v_pointer);
243 244 245
      list->data.v_pointer = g_value_dup_object (value);
      break;
    case G_TYPE_BOXED:
246 247
      if (list->data.v_pointer)
	g_boxed_free (G_VALUE_TYPE (value), list->data.v_pointer);
248 249
      list->data.v_pointer = g_value_dup_boxed (value);
      break;
250 251 252 253 254
    case G_TYPE_VARIANT:
      if (list->data.v_pointer)
	g_variant_unref (list->data.v_pointer);
      list->data.v_pointer = g_value_dup_variant (value);
      break;
255 256 257 258
    default:
      g_warning ("%s: Unsupported type (%s) stored.", G_STRLOC, g_type_name (G_VALUE_TYPE (value)));
      break;
    }
259 260
}

261
GtkTreeDataList *
262 263 264 265
_gtk_tree_data_list_node_copy (GtkTreeDataList *list,
                               GType            type)
{
  GtkTreeDataList *new_list;
266 267

  g_return_val_if_fail (list != NULL, NULL);
268 269
  
  new_list = _gtk_tree_data_list_alloc ();
270
  new_list->next = NULL;
271

272
  switch (get_fundamental_type (type))
273
    {
274
    case G_TYPE_BOOLEAN:
Daniel Elstner's avatar
Daniel Elstner committed
275 276 277 278 279 280 281 282 283 284
    case G_TYPE_CHAR:
    case G_TYPE_UCHAR:
    case G_TYPE_INT:
    case G_TYPE_UINT:
    case G_TYPE_LONG:
    case G_TYPE_ULONG:
    case G_TYPE_INT64:
    case G_TYPE_UINT64:
    case G_TYPE_ENUM:
    case G_TYPE_FLAGS:
285 286 287 288 289 290 291 292 293
    case G_TYPE_POINTER:
    case G_TYPE_FLOAT:
    case G_TYPE_DOUBLE:
      new_list->data = list->data;
      break;
    case G_TYPE_STRING:
      new_list->data.v_pointer = g_strdup (list->data.v_pointer);
      break;
    case G_TYPE_OBJECT:
294
    case G_TYPE_INTERFACE:
295 296
      new_list->data.v_pointer = list->data.v_pointer;
      if (new_list->data.v_pointer)
Manish Singh's avatar
Manish Singh committed
297
	g_object_ref (new_list->data.v_pointer);
298 299
      break;
    case G_TYPE_BOXED:
300 301
      if (list->data.v_pointer)
	new_list->data.v_pointer = g_boxed_copy (type, list->data.v_pointer);
302
      else
303
	new_list->data.v_pointer = NULL;
304
      break;
305 306 307 308 309 310
    case G_TYPE_VARIANT:
      if (list->data.v_pointer)
	new_list->data.v_pointer = g_variant_ref (list->data.v_pointer);
      else
	new_list->data.v_pointer = NULL;
      break;
311 312 313
    default:
      g_warning ("Unsupported node type (%s) copied.", g_type_name (type));
      break;
314
    }
315

316 317
  return new_list;
}
318

319
gint
320 321 322 323
_gtk_tree_data_list_compare_func (GtkTreeModel *model,
				  GtkTreeIter  *a,
				  GtkTreeIter  *b,
				  gpointer      user_data)
324 325 326
{
  gint column = GPOINTER_TO_INT (user_data);
  GType type = gtk_tree_model_get_column_type (model, column);
Javier Jardón's avatar
Javier Jardón committed
327 328
  GValue a_value = G_VALUE_INIT;
  GValue b_value = G_VALUE_INIT;
329
  gint retval;
330
  const gchar *stra, *strb;
331

332 333 334
  gtk_tree_model_get_value (model, a, column, &a_value);
  gtk_tree_model_get_value (model, b, column, &b_value);

335
  switch (get_fundamental_type (type))
336 337
    {
    case G_TYPE_BOOLEAN:
338
      if (g_value_get_boolean (&a_value) < g_value_get_boolean (&b_value))
339
	retval = -1;
340
      else if (g_value_get_boolean (&a_value) == g_value_get_boolean (&b_value))
341 342 343
	retval = 0;
      else
	retval = 1;
344 345
      break;
    case G_TYPE_CHAR:
346
      if (g_value_get_schar (&a_value) < g_value_get_schar (&b_value))
347
	retval = -1;
348
      else if (g_value_get_schar (&a_value) == g_value_get_schar (&b_value))
349 350 351
	retval = 0;
      else
	retval = 1;
352 353
      break;
    case G_TYPE_UCHAR:
354 355 356 357 358 359
      if (g_value_get_uchar (&a_value) < g_value_get_uchar (&b_value))
	retval = -1;
      else if (g_value_get_uchar (&a_value) == g_value_get_uchar (&b_value))
	retval = 0;
      else
	retval = 1;
360 361
      break;
    case G_TYPE_INT:
362 363 364 365 366 367
      if (g_value_get_int (&a_value) < g_value_get_int (&b_value))
	retval = -1;
      else if (g_value_get_int (&a_value) == g_value_get_int (&b_value))
	retval = 0;
      else
	retval = 1;
368 369
      break;
    case G_TYPE_UINT:
370 371 372 373 374 375
      if (g_value_get_uint (&a_value) < g_value_get_uint (&b_value))
	retval = -1;
      else if (g_value_get_uint (&a_value) == g_value_get_uint (&b_value))
	retval = 0;
      else
	retval = 1;
376
      break;
Daniel Elstner's avatar
Daniel Elstner committed
377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408
    case G_TYPE_LONG:
      if (g_value_get_long (&a_value) < g_value_get_long (&b_value))
	retval = -1;
      else if (g_value_get_long (&a_value) == g_value_get_long (&b_value))
	retval = 0;
      else
	retval = 1;
      break;
    case G_TYPE_ULONG:
      if (g_value_get_ulong (&a_value) < g_value_get_ulong (&b_value))
	retval = -1;
      else if (g_value_get_ulong (&a_value) == g_value_get_ulong (&b_value))
	retval = 0;
      else
	retval = 1;
      break;
    case G_TYPE_INT64:
      if (g_value_get_int64 (&a_value) < g_value_get_int64 (&b_value))
	retval = -1;
      else if (g_value_get_int64 (&a_value) == g_value_get_int64 (&b_value))
	retval = 0;
      else
	retval = 1;
      break;
    case G_TYPE_UINT64:
      if (g_value_get_uint64 (&a_value) < g_value_get_uint64 (&b_value))
	retval = -1;
      else if (g_value_get_uint64 (&a_value) == g_value_get_uint64 (&b_value))
	retval = 0;
      else
	retval = 1;
      break;
409 410
    case G_TYPE_ENUM:
      /* this is somewhat bogus. */
Daniel Elstner's avatar
Daniel Elstner committed
411
      if (g_value_get_enum (&a_value) < g_value_get_enum (&b_value))
412
	retval = -1;
Daniel Elstner's avatar
Daniel Elstner committed
413
      else if (g_value_get_enum (&a_value) == g_value_get_enum (&b_value))
414 415 416
	retval = 0;
      else
	retval = 1;
417 418
      break;
    case G_TYPE_FLAGS:
419
      /* this is even more bogus. */
Daniel Elstner's avatar
Daniel Elstner committed
420
      if (g_value_get_flags (&a_value) < g_value_get_flags (&b_value))
421
	retval = -1;
Daniel Elstner's avatar
Daniel Elstner committed
422
      else if (g_value_get_flags (&a_value) == g_value_get_flags (&b_value))
423 424 425
	retval = 0;
      else
	retval = 1;
426 427
      break;
    case G_TYPE_FLOAT:
428 429 430 431 432 433
      if (g_value_get_float (&a_value) < g_value_get_float (&b_value))
	retval = -1;
      else if (g_value_get_float (&a_value) == g_value_get_float (&b_value))
	retval = 0;
      else
	retval = 1;
434 435
      break;
    case G_TYPE_DOUBLE:
436 437 438 439 440 441
      if (g_value_get_double (&a_value) < g_value_get_double (&b_value))
	retval = -1;
      else if (g_value_get_double (&a_value) == g_value_get_double (&b_value))
	retval = 0;
      else
	retval = 1;
442 443
      break;
    case G_TYPE_STRING:
444 445
      stra = g_value_get_string (&a_value);
      strb = g_value_get_string (&b_value);
446 447 448
      if (stra == NULL) stra = "";
      if (strb == NULL) strb = "";
      retval = g_utf8_collate (stra, strb);
449
      break;
450
    case G_TYPE_VARIANT:
451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478
    case G_TYPE_POINTER:
    case G_TYPE_BOXED:
    case G_TYPE_OBJECT:
    default:
      g_warning ("Attempting to sort on invalid type %s\n", g_type_name (type));
      retval = FALSE;
      break;
    }

  g_value_unset (&a_value);
  g_value_unset (&b_value);

  return retval;
}


GList *
_gtk_tree_data_list_header_new (gint   n_columns,
				GType *types)
{
  GList *retval = NULL;

  gint i;

  for (i = 0; i < n_columns; i ++)
    {
      GtkTreeDataSortHeader *header;

479
      header = g_slice_new (GtkTreeDataSortHeader);
480 481 482

      retval = g_list_prepend (retval, header);
      header->sort_column_id = i;
483
      header->func = _gtk_tree_data_list_compare_func;
484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499
      header->destroy = NULL;
      header->data = GINT_TO_POINTER (i);
    }
  return g_list_reverse (retval);
}

void
_gtk_tree_data_list_header_free (GList *list)
{
  GList *tmp;

  for (tmp = list; tmp; tmp = tmp->next)
    {
      GtkTreeDataSortHeader *header = (GtkTreeDataSortHeader *) tmp->data;

      if (header->destroy)
500
	{
501
	  GDestroyNotify d = header->destroy;
502 503 504 505

	  header->destroy = NULL;
	  d (header->data);
	}
506

507
      g_slice_free (GtkTreeDataSortHeader, header);
508 509 510
    }
  g_list_free (list);
}
511 512

GtkTreeDataSortHeader *
513 514
_gtk_tree_data_list_get_header (GList   *header_list,
				gint     sort_column_id)
515 516 517 518 519 520 521 522 523 524 525
{
  GtkTreeDataSortHeader *header = NULL;

  for (; header_list; header_list = header_list->next)
    {
      header = (GtkTreeDataSortHeader*) header_list->data;
      if (header->sort_column_id == sort_column_id)
	return header;
    }
  return NULL;
}
526 527 528 529 530 531 532


GList *
_gtk_tree_data_list_set_header (GList                  *header_list,
				gint                    sort_column_id,
				GtkTreeIterCompareFunc  func,
				gpointer                data,
533
				GDestroyNotify          destroy)
534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553
{
  GList *list = header_list;
  GtkTreeDataSortHeader *header = NULL;

  for (; list; list = list->next)
    {
      header = (GtkTreeDataSortHeader*) list->data;
      if (header->sort_column_id == sort_column_id)
	break;
      header = NULL;

      if (list->next == NULL)
	break;
    }
  
  if (header == NULL)
    {
      header = g_slice_new0 (GtkTreeDataSortHeader);
      header->sort_column_id = sort_column_id;
      if (list)
554
	list = g_list_append (list, header);
555 556 557 558 559 560
      else
	header_list = g_list_append (header_list, header);
    }

  if (header->destroy)
    {
561
      GDestroyNotify d = header->destroy;
562 563 564 565 566 567 568 569 570 571 572
      
      header->destroy = NULL;
      d (header->data);
    }
  
  header->func = func;
  header->data = data;
  header->destroy = destroy;

  return header_list;
}