1 /* PSPPIRE - a graphical user interface for PSPP.
2 Copyright (C) 2017 Free Software Foundation
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.
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.
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/>. */
19 #define _(msgid) gettext (msgid)
20 #define P_(msgid) msgid
22 #include "psppire-delimited-text.h"
23 #include "psppire-text-file.h"
24 #include "libpspp/str.h"
25 #include "libpspp/i18n.h"
39 count_delims (PsppireDelimitedText *tf)
43 tf->max_delimiters = 0;
46 for (valid = gtk_tree_model_get_iter_first (tf->child, &iter);
48 valid = gtk_tree_model_iter_next (tf->child, &iter))
50 // FIXME: Box these lines to avoid constant allocation/deallocation
52 gtk_tree_model_get (tf->child, &iter, 1, &foo, -1);
59 for (del = tf->delimiters; del; del = g_slist_next (del))
61 if (*line == GPOINTER_TO_INT (del->data))
66 tf->max_delimiters = MAX (tf->max_delimiters, count);
71 // g_print ("Max Number of delimiters per row: %d\n", tf->max_delimiters);
75 cache_invalidate (PsppireDelimitedText *tf)
77 memset (tf->cache_starts, 0, 512);
78 if (tf->const_cache.string)
80 ss_dealloc (&tf->const_cache);
81 tf->const_cache.string = NULL;
87 psppire_delimited_text_set_property (GObject *object,
92 PsppireDelimitedText *tf = PSPPIRE_DELIMITED_TEXT (object);
97 tf->first_line = g_value_get_int (value);
100 tf->child = g_value_get_object (value);
102 case PROP_DELIMITERS:
103 g_slist_free (tf->delimiters);
104 tf->delimiters = g_slist_copy (g_value_get_pointer (value));
107 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
111 cache_invalidate (tf);
116 psppire_delimited_text_get_property (GObject *object,
121 PsppireDelimitedText *text_file = PSPPIRE_DELIMITED_TEXT (object);
125 case PROP_FIRST_LINE:
126 g_value_set_int (value, text_file->first_line);
128 case PROP_DELIMITERS:
129 g_value_set_pointer (value, text_file->delimiters);
132 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
138 static void psppire_delimited_text_init (PsppireDelimitedText *text_file);
139 static void psppire_delimited_text_class_init (PsppireDelimitedTextClass *class);
141 static void psppire_delimited_text_finalize (GObject *object);
142 static void psppire_delimited_text_dispose (GObject *object);
144 static GObjectClass *parent_class = NULL;
148 __tree_get_iter (GtkTreeModel *tree_model,
152 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
156 // g_print ("%s:%d %s %s\n", __FILE__, __LINE__, __FUNCTION__, gtk_tree_path_to_string (path));
158 gint *indices = gtk_tree_path_get_indices (path);
165 gint children = gtk_tree_model_iter_n_children (file->child, NULL);
167 if (n >= children - file->first_line)
170 // g_print ("%s:%d %s %d Children: %d\n", __FILE__, __LINE__, __FUNCTION__, n, children);
172 iter->user_data = GINT_TO_POINTER (n);
173 iter->stamp = file->stamp;
180 __tree_iter_next (GtkTreeModel *tree_model,
183 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
184 g_return_val_if_fail (file->stamp == iter->stamp, FALSE);
186 gint n = GPOINTER_TO_INT (iter->user_data);
188 // g_print ("%s:%d %s %d\n", __FILE__, __LINE__, __FUNCTION__, n);
190 gint children = gtk_tree_model_iter_n_children (file->child, NULL);
192 if (n + 1 >= children - file->first_line)
195 iter->user_data = GINT_TO_POINTER (n + 1);
202 __tree_get_column_type (GtkTreeModel *tree_model,
205 // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
209 return G_TYPE_STRING;
213 __iter_has_child (GtkTreeModel *tree_model,
216 g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
222 __iter_parent (GtkTreeModel *tree_model,
226 g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
231 __tree_get_path (GtkTreeModel *tree_model,
234 // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
235 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
236 g_return_val_if_fail (file->stamp == iter->stamp, FALSE);
238 gint n = GPOINTER_TO_INT (iter->user_data);
240 gint children = gtk_tree_model_iter_n_children (file->child, NULL);
242 if (n >= children - file->first_line)
245 return gtk_tree_path_new_from_indices (n, -1);
250 __iter_children (GtkTreeModel *tree_model,
254 g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
260 __tree_model_iter_n_children (GtkTreeModel *tree_model,
263 g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
264 g_assert (iter == NULL);
268 static GtkTreeModelFlags
269 __tree_model_get_flags (GtkTreeModel *model)
271 // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
272 g_return_val_if_fail (PSPPIRE_IS_DELIMITED_TEXT (model), (GtkTreeModelFlags) 0);
274 return GTK_TREE_MODEL_LIST_ONLY;
278 __tree_model_get_n_columns (GtkTreeModel *tree_model)
280 // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
281 PsppireDelimitedText *tf = PSPPIRE_DELIMITED_TEXT (tree_model);
283 /* + 1 for the trailing field and +1 for the leading line number column */
284 return tf->max_delimiters + 1 + 1;
289 __iter_nth_child (GtkTreeModel *tree_model,
294 // g_print ("%s:%d %s %d\n", __FILE__, __LINE__, __FUNCTION__, n);
295 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
297 g_assert (parent == NULL);
299 g_return_val_if_fail (file, FALSE);
301 gint children = gtk_tree_model_iter_n_children (file->child, NULL);
303 if (n >= children - file->first_line)
306 iter->user_data = NULL;
310 iter->user_data = GINT_TO_POINTER (n);
311 iter->stamp = file->stamp;
317 /* Split row N into it's delimited fields (if it is not already cached)
318 and set this row as the current cache. */
320 split_row_into_fields (PsppireDelimitedText *file, gint n)
322 if (n == file->cache_row) /* Cache hit */
327 memset (file->cache_starts, 0, 512);
329 if (file->const_cache.string)
331 ss_dealloc (&file->const_cache);
333 ss_alloc_substring_pool (&file->const_cache,
334 PSPPIRE_TEXT_FILE (file->child)->lines[n], NULL);
335 struct substring cs = file->const_cache;
337 file->cache_starts[0] = cs.string;
339 UINT32_MAX != ss_first_mb (cs);
342 ucs4_t xx = ss_first_mb (cs);
344 for (del = file->delimiters; del; del = g_slist_next (del))
346 if (xx == GPOINTER_TO_INT (del->data))
349 int char_len = ss_first_mblen (cs);
350 file->cache_starts[field] = cs.string + char_len;
353 cs.string[char_len - 1] = '\0';
365 psppire_delimited_text_get_header_title (PsppireDelimitedText *file, gint column)
367 if (file->first_line <= 0)
370 split_row_into_fields (file, file->first_line - 1);
372 return file->cache_starts [column];
376 __get_value (GtkTreeModel *tree_model,
381 // g_print ("%s:%d %s Col: %d\n", __FILE__, __LINE__, __FUNCTION__, column);
382 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
384 g_return_if_fail (iter->stamp == file->stamp);
386 gint n = GPOINTER_TO_INT (iter->user_data) + file->first_line;
388 // g_print ("%s:%d Row: %d\n", __FILE__, __LINE__, n);
392 g_value_init (value, G_TYPE_INT);
393 g_value_set_int (value, n + 1);
397 g_value_init (value, G_TYPE_STRING);
399 split_row_into_fields (file, n);
401 g_value_set_string (value, file->cache_starts [column - 1]);
406 __tree_model_init (GtkTreeModelIface *iface)
408 iface->get_flags = __tree_model_get_flags;
409 iface->get_n_columns = __tree_model_get_n_columns ;
410 iface->get_column_type = __tree_get_column_type;
411 iface->get_iter = __tree_get_iter;
412 iface->iter_next = __tree_iter_next;
413 iface->get_path = __tree_get_path;
414 iface->get_value = __get_value;
416 iface->iter_children = __iter_children;
417 iface->iter_has_child = __iter_has_child;
418 iface->iter_n_children = __tree_model_iter_n_children;
419 iface->iter_nth_child = __iter_nth_child;
420 iface->iter_parent = __iter_parent;
425 psppire_delimited_text_get_type (void)
427 static GType text_file_type = 0;
431 static const GTypeInfo text_file_info =
433 sizeof (PsppireDelimitedTextClass),
434 NULL, /* base_init */
435 NULL, /* base_finalize */
436 (GClassInitFunc) psppire_delimited_text_class_init,
437 NULL, /* class_finalize */
438 NULL, /* class_data */
439 sizeof (PsppireDelimitedText),
441 (GInstanceInitFunc) psppire_delimited_text_init,
444 static const GInterfaceInfo tree_model_info = {
445 (GInterfaceInitFunc) __tree_model_init,
450 text_file_type = g_type_register_static (G_TYPE_OBJECT,
451 "PsppireDelimitedText",
454 g_type_add_interface_static (text_file_type, GTK_TYPE_TREE_MODEL,
458 return text_file_type;
463 psppire_delimited_text_class_init (PsppireDelimitedTextClass *class)
465 GObjectClass *object_class;
467 parent_class = g_type_class_peek_parent (class);
468 object_class = (GObjectClass*) class;
470 GParamSpec *first_line_spec =
471 g_param_spec_int ("first-line",
473 P_("The first line to be considered."),
477 GParamSpec *delimiters_spec =
478 g_param_spec_pointer ("delimiters",
480 P_("A GSList of gunichars which delimit the fields."),
483 GParamSpec *child_spec =
484 g_param_spec_object ("child",
486 P_("The GtkTextModel which this object wraps."),
488 G_PARAM_CONSTRUCT_ONLY |G_PARAM_READWRITE);
490 object_class->set_property = psppire_delimited_text_set_property;
491 object_class->get_property = psppire_delimited_text_get_property;
493 g_object_class_install_property (object_class,
497 g_object_class_install_property (object_class,
501 g_object_class_install_property (object_class,
505 object_class->finalize = psppire_delimited_text_finalize;
506 object_class->dispose = psppire_delimited_text_dispose;
511 psppire_delimited_text_init (PsppireDelimitedText *text_file)
513 text_file->child = NULL;
514 text_file->first_line = 0;
515 text_file->delimiters = g_slist_prepend (NULL, GINT_TO_POINTER (':'));
517 text_file->const_cache.string = NULL;
518 text_file->const_cache.length = 0;
519 text_file->cache_row = -1;
520 memset (text_file->cache_starts, 0, 512);
522 text_file->max_delimiters = 0;
524 text_file->dispose_has_run = FALSE;
525 text_file->stamp = g_random_int ();
529 PsppireDelimitedText *
530 psppire_delimited_text_new (GtkTreeModel *child)
532 PsppireDelimitedText *retval =
533 g_object_new (PSPPIRE_TYPE_DELIMITED_TEXT,
541 psppire_delimited_text_finalize (GObject *object)
543 PsppireDelimitedText *tf = PSPPIRE_DELIMITED_TEXT (object);
545 g_slist_free (tf->delimiters);
547 ss_dealloc (&tf->const_cache);
550 (* parent_class->finalize) (object);
555 psppire_delimited_text_dispose (GObject *object)
557 PsppireDelimitedText *ds = PSPPIRE_DELIMITED_TEXT (object);
559 if (ds->dispose_has_run)
563 (* parent_class->dispose) (object);
565 ds->dispose_has_run = TRUE;