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);
90 static GtkTreeModelFlags
91 __tree_model_get_flags (GtkTreeModel *model)
93 g_return_val_if_fail (PSPPIRE_IS_DATA_STORE (model), (GtkTreeModelFlags) 0);
95 return GTK_TREE_MODEL_LIST_ONLY;
99 __tree_model_get_n_columns (GtkTreeModel *tree_model)
101 PsppireDataStore *store = PSPPIRE_DATA_STORE (tree_model);
103 return psppire_dict_get_value_cnt (store->dict);
108 __iter_nth_child (GtkTreeModel *tree_model,
113 PsppireDataStore *store = PSPPIRE_DATA_STORE (tree_model);
115 g_assert (parent == NULL);
117 g_return_val_if_fail (store, FALSE);
118 g_return_val_if_fail (store->datasheet, FALSE);
120 if (n >= datasheet_get_n_rows (store->datasheet))
123 iter->user_data = NULL;
134 __get_value (GtkTreeModel *tree_model,
139 PsppireDataStore *store = PSPPIRE_DATA_STORE (tree_model);
141 g_value_init (value, G_TYPE_DOUBLE);
143 gint row = GPOINTER_TO_INT (iter->user_data);
145 struct ccase *cc = datasheet_get_row (store->datasheet, row);
147 g_value_set_double (value, case_data_idx (cc, column)->f);
153 __tree_model_init (GtkTreeModelIface *iface)
155 iface->get_flags = __tree_model_get_flags;
156 iface->get_n_columns = __tree_model_get_n_columns ;
157 iface->get_column_type = NULL;
158 iface->get_iter = NULL;
159 iface->iter_next = NULL;
160 iface->get_path = NULL;
161 iface->get_value = __get_value;
163 iface->iter_children = NULL;
164 iface->iter_has_child = NULL;
165 iface->iter_n_children = __tree_model_iter_n_children;
166 iface->iter_nth_child = __iter_nth_child;
167 iface->iter_parent = NULL;
172 psppire_data_store_get_type (void)
174 static GType data_store_type = 0;
176 if (!data_store_type)
178 static const GTypeInfo data_store_info =
180 sizeof (PsppireDataStoreClass),
181 NULL, /* base_init */
182 NULL, /* base_finalize */
183 (GClassInitFunc) psppire_data_store_class_init,
184 NULL, /* class_finalize */
185 NULL, /* class_data */
186 sizeof (PsppireDataStore),
188 (GInstanceInitFunc) psppire_data_store_init,
191 static const GInterfaceInfo tree_model_info = {
192 (GInterfaceInitFunc) __tree_model_init,
197 data_store_type = g_type_register_static (G_TYPE_OBJECT,
199 &data_store_info, 0);
201 g_type_add_interface_static (data_store_type, GTK_TYPE_TREE_MODEL,
205 return data_store_type;
210 psppire_data_store_class_init (PsppireDataStoreClass *class)
212 GObjectClass *object_class;
214 parent_class = g_type_class_peek_parent (class);
215 object_class = (GObjectClass*) class;
217 object_class->finalize = psppire_data_store_finalize;
218 object_class->dispose = psppire_data_store_dispose;
220 signals [ITEMS_CHANGED] =
221 g_signal_new ("changed",
222 G_TYPE_FROM_CLASS (class),
226 psppire_marshal_VOID__UINT_UINT_UINT,
233 signals [CASE_INSERTED] =
234 g_signal_new ("case-inserted",
235 G_TYPE_FROM_CLASS (class),
239 g_cclosure_marshal_VOID__INT,
245 signals [CASE_CHANGED] =
246 g_signal_new ("case-changed",
247 G_TYPE_FROM_CLASS (class),
251 g_cclosure_marshal_VOID__INT,
256 signals [CASES_DELETED] =
257 g_signal_new ("cases-deleted",
258 G_TYPE_FROM_CLASS (class),
262 psppire_marshal_VOID__INT_INT,
272 psppire_data_store_insert_value (PsppireDataStore *ds,
273 gint width, gint where);
276 psppire_data_store_get_case_count (const PsppireDataStore *store)
278 return datasheet_get_n_rows (store->datasheet);
282 psppire_data_store_get_value_count (const PsppireDataStore *store)
284 return psppire_dict_get_value_cnt (store->dict);
287 const struct caseproto *
288 psppire_data_store_get_proto (const PsppireDataStore *store)
290 return psppire_dict_get_proto (store->dict);
294 psppire_data_store_init (PsppireDataStore *data_store)
296 data_store->dict = NULL;
297 data_store->datasheet = NULL;
298 data_store->dispose_has_run = FALSE;
302 A callback which occurs after a variable has been deleted.
305 delete_variable_callback (GObject *obj, const struct variable *var UNUSED,
306 gint dict_index, gint case_index,
309 PsppireDataStore *store = PSPPIRE_DATA_STORE (data);
311 g_return_if_fail (store->datasheet);
313 datasheet_delete_columns (store->datasheet, case_index, 1);
314 datasheet_insert_column (store->datasheet, NULL, -1, case_index);
317 struct resize_datum_aux
319 const struct dictionary *dict;
320 const struct variable *new_variable;
321 const struct variable *old_variable;
325 resize_datum (const union value *old, union value *new, const void *aux_)
327 const struct resize_datum_aux *aux = aux_;
328 int new_width = var_get_width (aux->new_variable);
329 const char *enc = dict_get_encoding (aux->dict);
330 const struct fmt_spec *newfmt = var_get_print_format (aux->new_variable);
331 char *s = data_out (old, enc, var_get_print_format (aux->old_variable));
332 enum fmt_type type = (fmt_usable_for_input (newfmt->type)
335 free (data_in (ss_cstr (s), enc, type, new, new_width, enc));
340 variable_changed_callback (GObject *obj, gint var_num, guint what, const struct variable *oldvar,
343 PsppireDataStore *store = PSPPIRE_DATA_STORE (data);
344 struct variable *variable = psppire_dict_get_variable (store->dict, var_num);
346 if (what & VAR_TRAIT_WIDTH)
348 int posn = var_get_case_index (variable);
349 struct resize_datum_aux aux;
350 aux.old_variable = oldvar;
351 aux.new_variable = variable;
352 aux.dict = store->dict->dict;
353 datasheet_resize_column (store->datasheet, posn, var_get_width (variable),
359 insert_variable_callback (GObject *obj, gint var_num, gpointer data)
361 struct variable *variable;
362 PsppireDataStore *store;
365 g_return_if_fail (data);
367 store = PSPPIRE_DATA_STORE (data);
369 variable = psppire_dict_get_variable (store->dict, var_num);
370 posn = var_get_case_index (variable);
371 psppire_data_store_insert_value (store, var_get_width (variable), posn);
375 * psppire_data_store_new:
376 * @dict: The dictionary for this data_store.
379 * Return value: a new #PsppireDataStore
382 psppire_data_store_new (PsppireDict *dict)
384 PsppireDataStore *retval;
386 retval = g_object_new (PSPPIRE_TYPE_DATA_STORE, NULL);
388 psppire_data_store_set_dictionary (retval, dict);
394 psppire_data_store_set_reader (PsppireDataStore *ds,
395 struct casereader *reader)
401 old_n = datasheet_get_n_rows (ds->datasheet);
402 datasheet_destroy (ds->datasheet);
405 ds->datasheet = datasheet_create (reader);
407 gint new_n = datasheet_get_n_rows (ds->datasheet);
410 for (i = 0 ; i < n_dict_signals; ++i )
412 if ( ds->dict_handler_id [i] > 0)
414 g_signal_handler_unblock (ds->dict,
415 ds->dict_handler_id[i]);
419 g_signal_emit (ds, signals[ITEMS_CHANGED], 0, 0, old_n, new_n);
424 * psppire_data_store_replace_set_dictionary:
425 * @data_store: The variable store
426 * @dict: The dictionary to set
428 * If a dictionary is already associated with the data-store, then it will be
432 psppire_data_store_set_dictionary (PsppireDataStore *data_store, PsppireDict *dict)
436 /* Disconnect any existing handlers */
437 if ( data_store->dict )
438 for (i = 0 ; i < n_dict_signals; ++i )
440 g_signal_handler_disconnect (data_store->dict,
441 data_store->dict_handler_id[i]);
444 data_store->dict = dict;
449 data_store->dict_handler_id [VARIABLE_INSERTED] =
450 g_signal_connect (dict, "variable-inserted",
451 G_CALLBACK (insert_variable_callback),
454 data_store->dict_handler_id [VARIABLE_DELETED] =
455 g_signal_connect (dict, "variable-deleted",
456 G_CALLBACK (delete_variable_callback),
459 data_store->dict_handler_id [VARIABLE_CHANGED] =
460 g_signal_connect (dict, "variable-changed",
461 G_CALLBACK (variable_changed_callback),
467 /* The entire model has changed */
469 if ( data_store->dict )
470 for (i = 0 ; i < n_dict_signals; ++i )
472 if ( data_store->dict_handler_id [i] > 0)
474 g_signal_handler_block (data_store->dict,
475 data_store->dict_handler_id[i]);
481 psppire_data_store_finalize (GObject *object)
483 PsppireDataStore *ds = PSPPIRE_DATA_STORE (object);
487 datasheet_destroy (ds->datasheet);
488 ds->datasheet = NULL;
492 (* parent_class->finalize) (object);
497 psppire_data_store_dispose (GObject *object)
499 PsppireDataStore *ds = PSPPIRE_DATA_STORE (object);
501 if (ds->dispose_has_run)
504 psppire_data_store_set_dictionary (ds, NULL);
507 (* parent_class->dispose) (object);
509 ds->dispose_has_run = TRUE;
514 /* Insert a blank case before POSN */
516 psppire_data_store_insert_new_case (PsppireDataStore *ds, casenumber posn)
519 const struct caseproto *proto;
521 g_return_val_if_fail (ds, FALSE);
523 proto = datasheet_get_proto (ds->datasheet);
524 g_return_val_if_fail (caseproto_get_n_widths (proto) > 0, FALSE);
525 g_return_val_if_fail (posn <= psppire_data_store_get_case_count (ds), FALSE);
527 cc = case_create (proto);
528 case_set_missing (cc);
530 result = psppire_data_store_insert_case (ds, cc, posn);
538 psppire_data_store_get_string (PsppireDataStore *store,
539 glong row, const struct variable *var,
540 bool use_value_label)
546 g_return_val_if_fail (store != NULL, NULL);
547 g_return_val_if_fail (store->datasheet != NULL, NULL);
548 g_return_val_if_fail (var != NULL, NULL);
550 if (row < 0 || row >= datasheet_get_n_rows (store->datasheet))
553 width = var_get_width (var);
554 value_init (&v, width);
555 datasheet_get_value (store->datasheet, row, var_get_case_index (var), &v);
560 const char *label = var_lookup_value_label (var, &v);
562 string = g_strdup (label);
565 string = value_to_text (v, var);
567 value_destroy (&v, width);
573 /* Attempts to update that part of the variable store which corresponds to VAR
574 within ROW with the value TEXT.
576 If USE_VALUE_LABEL is true, and TEXT is a value label for the column's
577 variable, then stores the value from that value label instead of the literal
580 Returns true if anything was updated, false otherwise. */
582 psppire_data_store_set_string (PsppireDataStore *store,
584 glong row, const struct variable *var,
585 gboolean use_value_label)
591 n_cases = psppire_data_store_get_case_count (store);
595 psppire_data_store_insert_new_case (store, row);
597 case_index = var_get_case_index (var);
600 const struct val_labs *vls = var_get_value_labels (var);
601 const union value *value = vls ? val_labs_find_value (vls, text) : NULL;
603 ok = datasheet_put_value (store->datasheet, row, case_index, value);
608 ok = psppire_data_store_data_in (store, row, case_index, ss_cstr (text),
609 var_get_print_format (var));
612 g_signal_emit (store, signals [CASE_CHANGED], 0, row);
619 psppire_data_store_clear (PsppireDataStore *ds)
621 datasheet_destroy (ds->datasheet);
622 ds->datasheet = NULL;
624 psppire_dict_clear (ds->dict);
626 g_signal_emit (ds, signals [CASES_DELETED], 0, 0, -1);
631 /* Return a casereader made from this datastore */
633 psppire_data_store_get_reader (PsppireDataStore *ds)
636 struct casereader *reader ;
639 for (i = 0 ; i < n_dict_signals; ++i )
641 g_signal_handler_block (ds->dict,
642 ds->dict_handler_id[i]);
645 reader = datasheet_make_reader (ds->datasheet);
647 /* We must not reference this again */
648 ds->datasheet = NULL;
655 /* Column related funcs */
658 static const gchar null_var_name[]=N_("var");
664 /* Returns the CASENUMth case, or a null pointer on failure.
667 psppire_data_store_get_case (const PsppireDataStore *ds,
670 g_return_val_if_fail (ds, FALSE);
671 g_return_val_if_fail (ds->datasheet, FALSE);
673 return datasheet_get_row (ds->datasheet, casenum);
678 psppire_data_store_delete_cases (PsppireDataStore *ds, casenumber first,
681 g_return_val_if_fail (ds, FALSE);
682 g_return_val_if_fail (ds->datasheet, FALSE);
684 g_return_val_if_fail (first + n_cases <=
685 psppire_data_store_get_case_count (ds), FALSE);
688 datasheet_delete_rows (ds->datasheet, first, n_cases);
690 g_signal_emit (ds, signals [CASES_DELETED], 0, first, n_cases);
697 /* Insert case CC into the case file before POSN */
699 psppire_data_store_insert_case (PsppireDataStore *ds,
705 g_return_val_if_fail (ds, FALSE);
706 g_return_val_if_fail (ds->datasheet, FALSE);
709 result = datasheet_insert_rows (ds->datasheet, posn, &cc, 1);
712 g_signal_emit (ds, signals [CASE_INSERTED], 0, posn);
714 g_warning ("Cannot insert case at position %ld\n", posn);
720 /* Set the value of VAR in case CASENUM to V.
721 V must be the correct width for IDX.
722 Returns true if successful, false on I/O error. */
724 psppire_data_store_set_value (PsppireDataStore *ds, casenumber casenum,
725 const struct variable *var, const union value *v)
730 g_return_val_if_fail (ds, FALSE);
731 g_return_val_if_fail (ds->datasheet, FALSE);
733 n_cases = psppire_data_store_get_case_count (ds);
734 if ( casenum > n_cases)
737 if (casenum == n_cases)
738 psppire_data_store_insert_new_case (ds, casenum);
740 ok = datasheet_put_value (ds->datasheet, casenum, var_get_case_index (var),
743 g_signal_emit (ds, signals [CASE_CHANGED], 0, casenum);
751 /* Set the IDXth value of case C using D_IN */
753 psppire_data_store_data_in (PsppireDataStore *ds, casenumber casenum, gint idx,
754 struct substring input, const struct fmt_spec *fmt)
762 g_return_val_if_fail (ds, FALSE);
763 g_return_val_if_fail (ds->datasheet, FALSE);
765 g_return_val_if_fail (idx < datasheet_get_n_columns (ds->datasheet), FALSE);
769 width = fmt_var_width (fmt);
770 g_return_val_if_fail (caseproto_get_width (
771 datasheet_get_proto (ds->datasheet), idx) == width,
773 value_init (&value, width);
774 ok = (datasheet_get_value (ds->datasheet, casenum, idx, &value)
775 && data_in_msg (input, UTF8, fmt->type, &value, width,
776 dict_get_encoding (dict->dict))
777 && datasheet_put_value (ds->datasheet, casenum, idx, &value));
778 value_destroy (&value, width);
783 /* Resize the cases in the casefile, by inserting a value of the
784 given WIDTH into every one of them at the position immediately
788 psppire_data_store_insert_value (PsppireDataStore *ds,
789 gint width, gint where)
793 g_return_val_if_fail (ds, FALSE);
795 g_assert (width >= 0);
797 if ( ! ds->datasheet )
798 ds->datasheet = datasheet_create (NULL);
800 value_init (&value, width);
801 value_set_missing (&value, width);
803 datasheet_insert_column (ds->datasheet, &value, width, where);
804 value_destroy (&value, width);
810 psppire_data_store_filtered (PsppireDataStore *ds,
815 const struct dictionary *dict;
816 const struct variable *filter;
818 if ( row < 0 || row >= datasheet_get_n_rows (ds->datasheet))
821 dict = ds->dict->dict;
822 g_return_val_if_fail (dict, FALSE);
823 filter = dict_get_filter (dict);
827 g_return_val_if_fail (var_is_numeric (filter), FALSE);
828 value_init (&val, 0);
829 if ( ! datasheet_get_value (ds->datasheet, row,
830 var_get_case_index (filter),
834 return (val.f == 0.0);