1 /* PSPPIRE - a graphical user interface for PSPP.
2 Copyright (C) 2006, 2008, 2009, 2010, 2011, 2012, 2013 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/>. */
21 #define _(msgid) gettext (msgid)
22 #define N_(msgid) msgid
24 #include <data/datasheet.h>
25 #include <data/data-out.h>
26 #include <data/variable.h>
28 #include <ui/gui/psppire-marshal.h>
30 #include <pango/pango-context.h>
32 #include "psppire-data-store.h"
33 #include <libpspp/i18n.h>
36 #include <data/dictionary.h>
37 #include <data/missing-values.h>
38 #include <data/value-labels.h>
39 #include <data/data-in.h>
40 #include <data/format.h>
42 #include <math/sort.h>
49 static void psppire_data_store_init (PsppireDataStore *data_store);
50 static void psppire_data_store_class_init (PsppireDataStoreClass *class);
52 static void psppire_data_store_finalize (GObject *object);
53 static void psppire_data_store_dispose (GObject *object);
55 static gboolean psppire_data_store_insert_case (PsppireDataStore *ds,
60 static gboolean psppire_data_store_data_in (PsppireDataStore *ds,
61 casenumber casenum, gint idx,
62 struct substring input,
63 const struct fmt_spec *fmt);
65 static GObjectClass *parent_class = NULL;
77 static guint signals [n_SIGNALS];
80 __tree_model_iter_n_children (GtkTreeModel *tree_model,
83 PsppireDataStore *store = PSPPIRE_DATA_STORE (tree_model);
85 gint n = datasheet_get_n_rows (store->datasheet);
92 __tree_model_get_n_columns (GtkTreeModel *tree_model)
94 PsppireDataStore *store = PSPPIRE_DATA_STORE (tree_model);
96 return psppire_dict_get_value_cnt (store->dict);
101 __iter_nth_child (GtkTreeModel *tree_model,
106 PsppireDataStore *store = PSPPIRE_DATA_STORE (tree_model);
108 g_assert (parent == NULL);
110 g_return_val_if_fail (store, FALSE);
111 g_return_val_if_fail (store->datasheet, FALSE);
113 if (n >= datasheet_get_n_rows (store->datasheet))
116 iter->user_data = NULL;
127 __get_value (GtkTreeModel *tree_model,
132 PsppireDataStore *store = PSPPIRE_DATA_STORE (tree_model);
134 g_value_init (value, G_TYPE_DOUBLE);
136 gint row = GPOINTER_TO_INT (iter->user_data);
138 struct ccase *cc = datasheet_get_row (store->datasheet, row);
140 g_value_set_double (value, case_data_idx (cc, column)->f);
146 __tree_model_init (GtkTreeModelIface *iface)
148 iface->get_flags = NULL;
149 iface->get_n_columns = __tree_model_get_n_columns ;
150 iface->get_column_type = NULL;
151 iface->get_iter = NULL;
152 iface->iter_next = NULL;
153 iface->get_path = NULL;
154 iface->get_value = __get_value;
156 iface->iter_children = NULL;
157 iface->iter_has_child = NULL;
158 iface->iter_n_children = __tree_model_iter_n_children;
159 iface->iter_nth_child = __iter_nth_child;
160 iface->iter_parent = NULL;
165 psppire_data_store_get_type (void)
167 static GType data_store_type = 0;
169 if (!data_store_type)
171 static const GTypeInfo data_store_info =
173 sizeof (PsppireDataStoreClass),
174 NULL, /* base_init */
175 NULL, /* base_finalize */
176 (GClassInitFunc) psppire_data_store_class_init,
177 NULL, /* class_finalize */
178 NULL, /* class_data */
179 sizeof (PsppireDataStore),
181 (GInstanceInitFunc) psppire_data_store_init,
184 static const GInterfaceInfo tree_model_info = {
185 (GInterfaceInitFunc) __tree_model_init,
190 data_store_type = g_type_register_static (G_TYPE_OBJECT,
192 &data_store_info, 0);
194 g_type_add_interface_static (data_store_type, GTK_TYPE_TREE_MODEL,
198 return data_store_type;
203 psppire_data_store_class_init (PsppireDataStoreClass *class)
205 GObjectClass *object_class;
207 parent_class = g_type_class_peek_parent (class);
208 object_class = (GObjectClass*) class;
210 object_class->finalize = psppire_data_store_finalize;
211 object_class->dispose = psppire_data_store_dispose;
213 signals [ITEMS_CHANGED] =
214 g_signal_new ("changed",
215 G_TYPE_FROM_CLASS (class),
219 psppire_marshal_VOID__UINT_UINT_UINT,
226 signals [CASE_INSERTED] =
227 g_signal_new ("case-inserted",
228 G_TYPE_FROM_CLASS (class),
232 g_cclosure_marshal_VOID__INT,
238 signals [CASE_CHANGED] =
239 g_signal_new ("case-changed",
240 G_TYPE_FROM_CLASS (class),
244 g_cclosure_marshal_VOID__INT,
249 signals [CASES_DELETED] =
250 g_signal_new ("cases-deleted",
251 G_TYPE_FROM_CLASS (class),
255 psppire_marshal_VOID__INT_INT,
265 psppire_data_store_insert_value (PsppireDataStore *ds,
266 gint width, gint where);
269 psppire_data_store_get_case_count (const PsppireDataStore *store)
271 return datasheet_get_n_rows (store->datasheet);
275 psppire_data_store_get_value_count (const PsppireDataStore *store)
277 return psppire_dict_get_value_cnt (store->dict);
280 const struct caseproto *
281 psppire_data_store_get_proto (const PsppireDataStore *store)
283 return psppire_dict_get_proto (store->dict);
287 psppire_data_store_init (PsppireDataStore *data_store)
289 data_store->dict = NULL;
290 data_store->datasheet = NULL;
291 data_store->dispose_has_run = FALSE;
295 A callback which occurs after a variable has been deleted.
298 delete_variable_callback (GObject *obj, const struct variable *var UNUSED,
299 gint dict_index, gint case_index,
302 PsppireDataStore *store = PSPPIRE_DATA_STORE (data);
304 g_return_if_fail (store->datasheet);
306 datasheet_delete_columns (store->datasheet, case_index, 1);
307 datasheet_insert_column (store->datasheet, NULL, -1, case_index);
310 struct resize_datum_aux
312 const struct dictionary *dict;
313 const struct variable *new_variable;
314 const struct variable *old_variable;
318 resize_datum (const union value *old, union value *new, const void *aux_)
320 const struct resize_datum_aux *aux = aux_;
321 int new_width = var_get_width (aux->new_variable);
322 const char *enc = dict_get_encoding (aux->dict);
323 const struct fmt_spec *newfmt = var_get_print_format (aux->new_variable);
324 char *s = data_out (old, enc, var_get_print_format (aux->old_variable));
325 enum fmt_type type = (fmt_usable_for_input (newfmt->type)
328 free (data_in (ss_cstr (s), enc, type, new, new_width, enc));
333 variable_changed_callback (GObject *obj, gint var_num, guint what, const struct variable *oldvar,
336 PsppireDataStore *store = PSPPIRE_DATA_STORE (data);
337 struct variable *variable = psppire_dict_get_variable (store->dict, var_num);
339 if (what & VAR_TRAIT_WIDTH)
341 int posn = var_get_case_index (variable);
342 struct resize_datum_aux aux;
343 aux.old_variable = oldvar;
344 aux.new_variable = variable;
345 aux.dict = store->dict->dict;
346 datasheet_resize_column (store->datasheet, posn, var_get_width (variable),
352 insert_variable_callback (GObject *obj, gint var_num, gpointer data)
354 struct variable *variable;
355 PsppireDataStore *store;
358 g_return_if_fail (data);
360 store = PSPPIRE_DATA_STORE (data);
362 variable = psppire_dict_get_variable (store->dict, var_num);
363 posn = var_get_case_index (variable);
364 psppire_data_store_insert_value (store, var_get_width (variable), posn);
368 * psppire_data_store_new:
369 * @dict: The dictionary for this data_store.
372 * Return value: a new #PsppireDataStore
375 psppire_data_store_new (PsppireDict *dict)
377 PsppireDataStore *retval;
379 retval = g_object_new (PSPPIRE_TYPE_DATA_STORE, NULL);
381 psppire_data_store_set_dictionary (retval, dict);
387 psppire_data_store_set_reader (PsppireDataStore *ds,
388 struct casereader *reader)
394 old_n = datasheet_get_n_rows (ds->datasheet);
395 datasheet_destroy (ds->datasheet);
398 ds->datasheet = datasheet_create (reader);
400 gint new_n = datasheet_get_n_rows (ds->datasheet);
403 for (i = 0 ; i < n_dict_signals; ++i )
405 if ( ds->dict_handler_id [i] > 0)
407 g_signal_handler_unblock (ds->dict,
408 ds->dict_handler_id[i]);
412 g_signal_emit (ds, signals[ITEMS_CHANGED], 0, 0, old_n, new_n);
417 * psppire_data_store_replace_set_dictionary:
418 * @data_store: The variable store
419 * @dict: The dictionary to set
421 * If a dictionary is already associated with the data-store, then it will be
425 psppire_data_store_set_dictionary (PsppireDataStore *data_store, PsppireDict *dict)
429 /* Disconnect any existing handlers */
430 if ( data_store->dict )
431 for (i = 0 ; i < n_dict_signals; ++i )
433 g_signal_handler_disconnect (data_store->dict,
434 data_store->dict_handler_id[i]);
437 data_store->dict = dict;
442 data_store->dict_handler_id [VARIABLE_INSERTED] =
443 g_signal_connect (dict, "variable-inserted",
444 G_CALLBACK (insert_variable_callback),
447 data_store->dict_handler_id [VARIABLE_DELETED] =
448 g_signal_connect (dict, "variable-deleted",
449 G_CALLBACK (delete_variable_callback),
452 data_store->dict_handler_id [VARIABLE_CHANGED] =
453 g_signal_connect (dict, "variable-changed",
454 G_CALLBACK (variable_changed_callback),
460 /* The entire model has changed */
462 if ( data_store->dict )
463 for (i = 0 ; i < n_dict_signals; ++i )
465 if ( data_store->dict_handler_id [i] > 0)
467 g_signal_handler_block (data_store->dict,
468 data_store->dict_handler_id[i]);
474 psppire_data_store_finalize (GObject *object)
476 PsppireDataStore *ds = PSPPIRE_DATA_STORE (object);
480 datasheet_destroy (ds->datasheet);
481 ds->datasheet = NULL;
485 (* parent_class->finalize) (object);
490 psppire_data_store_dispose (GObject *object)
492 PsppireDataStore *ds = PSPPIRE_DATA_STORE (object);
494 if (ds->dispose_has_run)
497 psppire_data_store_set_dictionary (ds, NULL);
500 (* parent_class->dispose) (object);
502 ds->dispose_has_run = TRUE;
507 /* Insert a blank case before POSN */
509 psppire_data_store_insert_new_case (PsppireDataStore *ds, casenumber posn)
512 const struct caseproto *proto;
514 g_return_val_if_fail (ds, FALSE);
516 proto = datasheet_get_proto (ds->datasheet);
517 g_return_val_if_fail (caseproto_get_n_widths (proto) > 0, FALSE);
518 g_return_val_if_fail (posn <= psppire_data_store_get_case_count (ds), FALSE);
520 cc = case_create (proto);
521 case_set_missing (cc);
523 result = psppire_data_store_insert_case (ds, cc, posn);
531 psppire_data_store_get_string (PsppireDataStore *store,
532 glong row, const struct variable *var,
533 bool use_value_label)
539 g_return_val_if_fail (store != NULL, NULL);
540 g_return_val_if_fail (store->datasheet != NULL, NULL);
541 g_return_val_if_fail (var != NULL, NULL);
543 if (row < 0 || row >= datasheet_get_n_rows (store->datasheet))
546 width = var_get_width (var);
547 value_init (&v, width);
548 datasheet_get_value (store->datasheet, row, var_get_case_index (var), &v);
553 const char *label = var_lookup_value_label (var, &v);
555 string = g_strdup (label);
558 string = value_to_text (v, var);
560 value_destroy (&v, width);
566 /* Attempts to update that part of the variable store which corresponds to VAR
567 within ROW with the value TEXT.
569 If USE_VALUE_LABEL is true, and TEXT is a value label for the column's
570 variable, then stores the value from that value label instead of the literal
573 Returns true if anything was updated, false otherwise. */
575 psppire_data_store_set_string (PsppireDataStore *store,
577 glong row, const struct variable *var,
578 gboolean use_value_label)
584 n_cases = psppire_data_store_get_case_count (store);
588 psppire_data_store_insert_new_case (store, row);
590 case_index = var_get_case_index (var);
593 const struct val_labs *vls = var_get_value_labels (var);
594 const union value *value = vls ? val_labs_find_value (vls, text) : NULL;
596 ok = datasheet_put_value (store->datasheet, row, case_index, value);
601 ok = psppire_data_store_data_in (store, row, case_index, ss_cstr (text),
602 var_get_print_format (var));
605 g_signal_emit (store, signals [CASE_CHANGED], 0, row);
612 psppire_data_store_clear (PsppireDataStore *ds)
614 datasheet_destroy (ds->datasheet);
615 ds->datasheet = NULL;
617 psppire_dict_clear (ds->dict);
619 g_signal_emit (ds, signals [CASES_DELETED], 0, 0, -1);
624 /* Return a casereader made from this datastore */
626 psppire_data_store_get_reader (PsppireDataStore *ds)
629 struct casereader *reader ;
632 for (i = 0 ; i < n_dict_signals; ++i )
634 g_signal_handler_block (ds->dict,
635 ds->dict_handler_id[i]);
638 reader = datasheet_make_reader (ds->datasheet);
640 /* We must not reference this again */
641 ds->datasheet = NULL;
648 /* Column related funcs */
651 static const gchar null_var_name[]=N_("var");
657 /* Returns the CASENUMth case, or a null pointer on failure.
660 psppire_data_store_get_case (const PsppireDataStore *ds,
663 g_return_val_if_fail (ds, FALSE);
664 g_return_val_if_fail (ds->datasheet, FALSE);
666 return datasheet_get_row (ds->datasheet, casenum);
671 psppire_data_store_delete_cases (PsppireDataStore *ds, casenumber first,
674 g_return_val_if_fail (ds, FALSE);
675 g_return_val_if_fail (ds->datasheet, FALSE);
677 g_return_val_if_fail (first + n_cases <=
678 psppire_data_store_get_case_count (ds), FALSE);
681 datasheet_delete_rows (ds->datasheet, first, n_cases);
683 g_signal_emit (ds, signals [CASES_DELETED], 0, first, n_cases);
690 /* Insert case CC into the case file before POSN */
692 psppire_data_store_insert_case (PsppireDataStore *ds,
698 g_return_val_if_fail (ds, FALSE);
699 g_return_val_if_fail (ds->datasheet, FALSE);
702 result = datasheet_insert_rows (ds->datasheet, posn, &cc, 1);
705 g_signal_emit (ds, signals [CASE_INSERTED], 0, posn);
707 g_warning ("Cannot insert case at position %ld\n", posn);
713 /* Set the value of VAR in case CASENUM to V.
714 V must be the correct width for IDX.
715 Returns true if successful, false on I/O error. */
717 psppire_data_store_set_value (PsppireDataStore *ds, casenumber casenum,
718 const struct variable *var, const union value *v)
723 g_return_val_if_fail (ds, FALSE);
724 g_return_val_if_fail (ds->datasheet, FALSE);
726 n_cases = psppire_data_store_get_case_count (ds);
727 if ( casenum > n_cases)
730 if (casenum == n_cases)
731 psppire_data_store_insert_new_case (ds, casenum);
733 ok = datasheet_put_value (ds->datasheet, casenum, var_get_case_index (var),
736 g_signal_emit (ds, signals [CASE_CHANGED], 0, casenum);
744 /* Set the IDXth value of case C using D_IN */
746 psppire_data_store_data_in (PsppireDataStore *ds, casenumber casenum, gint idx,
747 struct substring input, const struct fmt_spec *fmt)
755 g_return_val_if_fail (ds, FALSE);
756 g_return_val_if_fail (ds->datasheet, FALSE);
758 g_return_val_if_fail (idx < datasheet_get_n_columns (ds->datasheet), FALSE);
762 width = fmt_var_width (fmt);
763 g_return_val_if_fail (caseproto_get_width (
764 datasheet_get_proto (ds->datasheet), idx) == width,
766 value_init (&value, width);
767 ok = (datasheet_get_value (ds->datasheet, casenum, idx, &value)
768 && data_in_msg (input, UTF8, fmt->type, &value, width,
769 dict_get_encoding (dict->dict))
770 && datasheet_put_value (ds->datasheet, casenum, idx, &value));
771 value_destroy (&value, width);
776 /* Resize the cases in the casefile, by inserting a value of the
777 given WIDTH into every one of them at the position immediately
781 psppire_data_store_insert_value (PsppireDataStore *ds,
782 gint width, gint where)
786 g_return_val_if_fail (ds, FALSE);
788 g_assert (width >= 0);
790 if ( ! ds->datasheet )
791 ds->datasheet = datasheet_create (NULL);
793 value_init (&value, width);
794 value_set_missing (&value, width);
796 datasheet_insert_column (ds->datasheet, &value, width, where);
797 value_destroy (&value, width);
803 psppire_data_store_filtered (PsppireDataStore *ds,
808 const struct dictionary *dict;
809 const struct variable *filter;
811 if ( row < 0 || row >= datasheet_get_n_rows (ds->datasheet))
814 dict = ds->dict->dict;
815 g_return_val_if_fail (dict, FALSE);
816 filter = dict_get_filter (dict);
820 g_return_val_if_fail (var_is_numeric (filter), FALSE);
821 value_init (&val, 0);
822 if ( ! datasheet_get_value (ds->datasheet, row,
823 var_get_case_index (filter),
827 return (val.f == 0.0);