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);
101 g_return_if_fail (PSPPIRE_IS_TEXT_FILE (tf->child));
103 case PROP_DELIMITERS:
104 g_slist_free (tf->delimiters);
105 tf->delimiters = g_slist_copy (g_value_get_pointer (value));
108 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
112 cache_invalidate (tf);
117 psppire_delimited_text_get_property (GObject *object,
122 PsppireDelimitedText *text_file = PSPPIRE_DELIMITED_TEXT (object);
126 case PROP_FIRST_LINE:
127 g_value_set_int (value, text_file->first_line);
129 case PROP_DELIMITERS:
130 g_value_set_pointer (value, text_file->delimiters);
133 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
139 static void psppire_delimited_text_init (PsppireDelimitedText *text_file);
140 static void psppire_delimited_text_class_init (PsppireDelimitedTextClass *class);
142 static void psppire_delimited_text_finalize (GObject *object);
143 static void psppire_delimited_text_dispose (GObject *object);
145 static GObjectClass *parent_class = NULL;
148 n_lines (PsppireDelimitedText *file)
150 PsppireTextFile *child = PSPPIRE_TEXT_FILE (file->child);
152 return child->maximum_lines;
156 __tree_get_iter (GtkTreeModel *tree_model,
160 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
164 // g_print ("%s:%d %s %s\n", __FILE__, __LINE__, __FUNCTION__, gtk_tree_path_to_string (path));
166 gint *indices = gtk_tree_path_get_indices (path);
173 gint children = n_lines (file);
175 if (n >= children - file->first_line)
178 // g_print ("%s:%d %s %d Children: %d\n", __FILE__, __LINE__, __FUNCTION__, n, children);
180 iter->user_data = GINT_TO_POINTER (n);
181 iter->stamp = file->stamp;
188 __tree_iter_next (GtkTreeModel *tree_model,
191 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
192 g_return_val_if_fail (file->stamp == iter->stamp, FALSE);
194 gint n = GPOINTER_TO_INT (iter->user_data);
196 // g_print ("%s:%d %s %d\n", __FILE__, __LINE__, __FUNCTION__, n);
198 gint children = n_lines (file);
200 if (n + 1 >= children - file->first_line)
203 iter->user_data = GINT_TO_POINTER (n + 1);
210 __tree_get_column_type (GtkTreeModel *tree_model,
213 // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
217 return G_TYPE_STRING;
221 __iter_has_child (GtkTreeModel *tree_model,
224 g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
230 __iter_parent (GtkTreeModel *tree_model,
234 g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
239 __tree_get_path (GtkTreeModel *tree_model,
242 // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
243 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
244 g_return_val_if_fail (file->stamp == iter->stamp, FALSE);
246 gint n = GPOINTER_TO_INT (iter->user_data);
248 gint children = n_lines (file);
250 if (n >= children - file->first_line)
253 return gtk_tree_path_new_from_indices (n, -1);
258 __iter_children (GtkTreeModel *tree_model,
262 g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
268 __tree_model_iter_n_children (GtkTreeModel *tree_model,
271 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
272 // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
273 g_assert (iter == NULL);
275 gint children = n_lines (file);
277 return children - file->first_line;
280 static GtkTreeModelFlags
281 __tree_model_get_flags (GtkTreeModel *model)
283 // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
284 g_return_val_if_fail (PSPPIRE_IS_DELIMITED_TEXT (model), (GtkTreeModelFlags) 0);
286 return GTK_TREE_MODEL_LIST_ONLY;
290 __tree_model_get_n_columns (GtkTreeModel *tree_model)
292 // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
293 PsppireDelimitedText *tf = PSPPIRE_DELIMITED_TEXT (tree_model);
295 /* + 1 for the trailing field and +1 for the leading line number column */
296 return tf->max_delimiters + 1 + 1;
301 __iter_nth_child (GtkTreeModel *tree_model,
306 // g_print ("%s:%d %s %d\n", __FILE__, __LINE__, __FUNCTION__, n);
307 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
309 g_assert (parent == NULL);
311 g_return_val_if_fail (file, FALSE);
313 gint children = gtk_tree_model_iter_n_children (file->child, NULL);
315 if (n >= children - file->first_line)
318 iter->user_data = NULL;
322 iter->user_data = GINT_TO_POINTER (n);
323 iter->stamp = file->stamp;
329 /* Split row N into it's delimited fields (if it is not already cached)
330 and set this row as the current cache. */
332 split_row_into_fields (PsppireDelimitedText *file, gint n)
334 if (n == file->cache_row) /* Cache hit */
339 memset (file->cache_starts, 0, 512);
341 if (file->const_cache.string)
343 ss_dealloc (&file->const_cache);
345 ss_alloc_substring_pool (&file->const_cache,
346 PSPPIRE_TEXT_FILE (file->child)->lines[n], NULL);
347 struct substring cs = file->const_cache;
349 file->cache_starts[0] = cs.string;
351 UINT32_MAX != ss_first_mb (cs);
354 ucs4_t xx = ss_first_mb (cs);
356 for (del = file->delimiters; del; del = g_slist_next (del))
358 if (xx == GPOINTER_TO_INT (del->data))
361 int char_len = ss_first_mblen (cs);
362 file->cache_starts[field] = cs.string + char_len;
365 cs.string[char_len - 1] = '\0';
377 psppire_delimited_text_get_header_title (PsppireDelimitedText *file, gint column)
379 if (file->first_line <= 0)
382 split_row_into_fields (file, file->first_line - 1);
384 return file->cache_starts [column];
388 __get_value (GtkTreeModel *tree_model,
393 // g_print ("%s:%d %s Col: %d\n", __FILE__, __LINE__, __FUNCTION__, column);
394 PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
396 g_return_if_fail (iter->stamp == file->stamp);
398 gint n = GPOINTER_TO_INT (iter->user_data) + file->first_line;
400 // g_print ("%s:%d Row: %d\n", __FILE__, __LINE__, n);
404 g_value_init (value, G_TYPE_INT);
405 g_value_set_int (value, n + 1);
409 g_value_init (value, G_TYPE_STRING);
411 split_row_into_fields (file, n);
413 g_value_set_string (value, file->cache_starts [column - 1]);
418 __tree_model_init (GtkTreeModelIface *iface)
420 iface->get_flags = __tree_model_get_flags;
421 iface->get_n_columns = __tree_model_get_n_columns ;
422 iface->get_column_type = __tree_get_column_type;
423 iface->get_iter = __tree_get_iter;
424 iface->iter_next = __tree_iter_next;
425 iface->get_path = __tree_get_path;
426 iface->get_value = __get_value;
428 iface->iter_children = __iter_children;
429 iface->iter_has_child = __iter_has_child;
430 iface->iter_n_children = __tree_model_iter_n_children;
431 iface->iter_nth_child = __iter_nth_child;
432 iface->iter_parent = __iter_parent;
437 psppire_delimited_text_get_type (void)
439 static GType text_file_type = 0;
443 static const GTypeInfo text_file_info =
445 sizeof (PsppireDelimitedTextClass),
446 NULL, /* base_init */
447 NULL, /* base_finalize */
448 (GClassInitFunc) psppire_delimited_text_class_init,
449 NULL, /* class_finalize */
450 NULL, /* class_data */
451 sizeof (PsppireDelimitedText),
453 (GInstanceInitFunc) psppire_delimited_text_init,
456 static const GInterfaceInfo tree_model_info = {
457 (GInterfaceInitFunc) __tree_model_init,
462 text_file_type = g_type_register_static (G_TYPE_OBJECT,
463 "PsppireDelimitedText",
466 g_type_add_interface_static (text_file_type, GTK_TYPE_TREE_MODEL,
470 return text_file_type;
475 psppire_delimited_text_class_init (PsppireDelimitedTextClass *class)
477 GObjectClass *object_class;
479 parent_class = g_type_class_peek_parent (class);
480 object_class = (GObjectClass*) class;
482 GParamSpec *first_line_spec =
483 g_param_spec_int ("first-line",
485 P_("The first line to be considered."),
489 GParamSpec *delimiters_spec =
490 g_param_spec_pointer ("delimiters",
492 P_("A GSList of gunichars which delimit the fields."),
495 GParamSpec *child_spec =
496 g_param_spec_object ("child",
498 P_("The GtkTextModel which this object wraps."),
500 G_PARAM_CONSTRUCT_ONLY |G_PARAM_READWRITE);
502 object_class->set_property = psppire_delimited_text_set_property;
503 object_class->get_property = psppire_delimited_text_get_property;
505 g_object_class_install_property (object_class,
509 g_object_class_install_property (object_class,
513 g_object_class_install_property (object_class,
517 object_class->finalize = psppire_delimited_text_finalize;
518 object_class->dispose = psppire_delimited_text_dispose;
523 psppire_delimited_text_init (PsppireDelimitedText *text_file)
525 text_file->child = NULL;
526 text_file->first_line = 0;
527 text_file->delimiters = g_slist_prepend (NULL, GINT_TO_POINTER (':'));
529 text_file->const_cache.string = NULL;
530 text_file->const_cache.length = 0;
531 text_file->cache_row = -1;
532 memset (text_file->cache_starts, 0, 512);
534 text_file->max_delimiters = 0;
536 text_file->dispose_has_run = FALSE;
537 text_file->stamp = g_random_int ();
542 psppire_delimited_text_new (GtkTreeModel *child)
544 PsppireDelimitedText *retval =
545 g_object_new (PSPPIRE_TYPE_DELIMITED_TEXT,
553 psppire_delimited_text_finalize (GObject *object)
555 PsppireDelimitedText *tf = PSPPIRE_DELIMITED_TEXT (object);
557 g_slist_free (tf->delimiters);
559 ss_dealloc (&tf->const_cache);
562 (* parent_class->finalize) (object);
567 psppire_delimited_text_dispose (GObject *object)
569 PsppireDelimitedText *ds = PSPPIRE_DELIMITED_TEXT (object);
571 if (ds->dispose_has_run)
575 (* parent_class->dispose) (object);
577 ds->dispose_has_run = TRUE;