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 [BACKEND_CHANGED] =
214 g_signal_new ("backend-changed",
215 G_TYPE_FROM_CLASS (class),
219 g_cclosure_marshal_VOID__VOID,
223 signals [CASE_INSERTED] =
224 g_signal_new ("case-inserted",
225 G_TYPE_FROM_CLASS (class),
229 g_cclosure_marshal_VOID__INT,
235 signals [CASE_CHANGED] =
236 g_signal_new ("case-changed",
237 G_TYPE_FROM_CLASS (class),
241 g_cclosure_marshal_VOID__INT,
246 signals [CASES_DELETED] =
247 g_signal_new ("cases-deleted",
248 G_TYPE_FROM_CLASS (class),
252 psppire_marshal_VOID__INT_INT,
262 psppire_data_store_insert_value (PsppireDataStore *ds,
263 gint width, gint where);
266 psppire_data_store_get_case_count (const PsppireDataStore *store)
268 return datasheet_get_n_rows (store->datasheet);
272 psppire_data_store_get_value_count (const PsppireDataStore *store)
274 return psppire_dict_get_value_cnt (store->dict);
277 const struct caseproto *
278 psppire_data_store_get_proto (const PsppireDataStore *store)
280 return psppire_dict_get_proto (store->dict);
284 psppire_data_store_init (PsppireDataStore *data_store)
286 data_store->dict = NULL;
287 data_store->datasheet = NULL;
288 data_store->dispose_has_run = FALSE;
292 A callback which occurs after a variable has been deleted.
295 delete_variable_callback (GObject *obj, const struct variable *var UNUSED,
296 gint dict_index, gint case_index,
299 PsppireDataStore *store = PSPPIRE_DATA_STORE (data);
301 g_return_if_fail (store->datasheet);
303 datasheet_delete_columns (store->datasheet, case_index, 1);
304 datasheet_insert_column (store->datasheet, NULL, -1, case_index);
307 struct resize_datum_aux
309 const struct dictionary *dict;
310 const struct variable *new_variable;
311 const struct variable *old_variable;
315 resize_datum (const union value *old, union value *new, const void *aux_)
317 const struct resize_datum_aux *aux = aux_;
318 int new_width = var_get_width (aux->new_variable);
319 const char *enc = dict_get_encoding (aux->dict);
320 const struct fmt_spec *newfmt = var_get_print_format (aux->new_variable);
321 char *s = data_out (old, enc, var_get_print_format (aux->old_variable));
322 enum fmt_type type = (fmt_usable_for_input (newfmt->type)
325 free (data_in (ss_cstr (s), enc, type, new, new_width, enc));
330 variable_changed_callback (GObject *obj, gint var_num, guint what, const struct variable *oldvar,
333 PsppireDataStore *store = PSPPIRE_DATA_STORE (data);
334 struct variable *variable = psppire_dict_get_variable (store->dict, var_num);
336 if (what & VAR_TRAIT_WIDTH)
338 int posn = var_get_case_index (variable);
339 struct resize_datum_aux aux;
340 aux.old_variable = oldvar;
341 aux.new_variable = variable;
342 aux.dict = store->dict->dict;
343 datasheet_resize_column (store->datasheet, posn, var_get_width (variable),
349 insert_variable_callback (GObject *obj, gint var_num, gpointer data)
351 struct variable *variable;
352 PsppireDataStore *store;
355 g_return_if_fail (data);
357 store = PSPPIRE_DATA_STORE (data);
359 variable = psppire_dict_get_variable (store->dict, var_num);
360 posn = var_get_case_index (variable);
361 psppire_data_store_insert_value (store, var_get_width (variable), posn);
365 * psppire_data_store_new:
366 * @dict: The dictionary for this data_store.
369 * Return value: a new #PsppireDataStore
372 psppire_data_store_new (PsppireDict *dict)
374 PsppireDataStore *retval;
376 retval = g_object_new (PSPPIRE_TYPE_DATA_STORE, NULL);
378 psppire_data_store_set_dictionary (retval, dict);
384 psppire_data_store_set_reader (PsppireDataStore *ds,
385 struct casereader *reader)
390 datasheet_destroy (ds->datasheet);
392 ds->datasheet = datasheet_create (reader);
394 g_signal_emit_by_name (ds, "notify", 0, 0);
395 g_print ("Datasheet row count %d\n", datasheet_get_n_rows (ds->datasheet));
398 for (i = 0 ; i < n_dict_signals; ++i )
400 if ( ds->dict_handler_id [i] > 0)
402 g_signal_handler_unblock (ds->dict,
403 ds->dict_handler_id[i]);
407 g_signal_emit (ds, signals[BACKEND_CHANGED], 0);
412 * psppire_data_store_replace_set_dictionary:
413 * @data_store: The variable store
414 * @dict: The dictionary to set
416 * If a dictionary is already associated with the data-store, then it will be
420 psppire_data_store_set_dictionary (PsppireDataStore *data_store, PsppireDict *dict)
424 /* Disconnect any existing handlers */
425 if ( data_store->dict )
426 for (i = 0 ; i < n_dict_signals; ++i )
428 g_signal_handler_disconnect (data_store->dict,
429 data_store->dict_handler_id[i]);
432 data_store->dict = dict;
437 data_store->dict_handler_id [VARIABLE_INSERTED] =
438 g_signal_connect (dict, "variable-inserted",
439 G_CALLBACK (insert_variable_callback),
442 data_store->dict_handler_id [VARIABLE_DELETED] =
443 g_signal_connect (dict, "variable-deleted",
444 G_CALLBACK (delete_variable_callback),
447 data_store->dict_handler_id [VARIABLE_CHANGED] =
448 g_signal_connect (dict, "variable-changed",
449 G_CALLBACK (variable_changed_callback),
455 /* The entire model has changed */
457 if ( data_store->dict )
458 for (i = 0 ; i < n_dict_signals; ++i )
460 if ( data_store->dict_handler_id [i] > 0)
462 g_signal_handler_block (data_store->dict,
463 data_store->dict_handler_id[i]);
469 psppire_data_store_finalize (GObject *object)
471 PsppireDataStore *ds = PSPPIRE_DATA_STORE (object);
475 datasheet_destroy (ds->datasheet);
476 ds->datasheet = NULL;
480 (* parent_class->finalize) (object);
485 psppire_data_store_dispose (GObject *object)
487 PsppireDataStore *ds = PSPPIRE_DATA_STORE (object);
489 if (ds->dispose_has_run)
492 psppire_data_store_set_dictionary (ds, NULL);
495 (* parent_class->dispose) (object);
497 ds->dispose_has_run = TRUE;
502 /* Insert a blank case before POSN */
504 psppire_data_store_insert_new_case (PsppireDataStore *ds, casenumber posn)
507 const struct caseproto *proto;
509 g_return_val_if_fail (ds, FALSE);
511 proto = datasheet_get_proto (ds->datasheet);
512 g_return_val_if_fail (caseproto_get_n_widths (proto) > 0, FALSE);
513 g_return_val_if_fail (posn <= psppire_data_store_get_case_count (ds), FALSE);
515 cc = case_create (proto);
516 case_set_missing (cc);
518 result = psppire_data_store_insert_case (ds, cc, posn);
526 psppire_data_store_get_string (PsppireDataStore *store,
527 glong row, const struct variable *var,
528 bool use_value_label)
534 g_return_val_if_fail (store != NULL, NULL);
535 g_return_val_if_fail (store->datasheet != NULL, NULL);
536 g_return_val_if_fail (var != NULL, NULL);
538 if (row < 0 || row >= datasheet_get_n_rows (store->datasheet))
541 width = var_get_width (var);
542 value_init (&v, width);
543 datasheet_get_value (store->datasheet, row, var_get_case_index (var), &v);
548 const char *label = var_lookup_value_label (var, &v);
550 string = g_strdup (label);
553 string = value_to_text (v, var);
555 value_destroy (&v, width);
561 /* Attempts to update that part of the variable store which corresponds to VAR
562 within ROW with the value TEXT.
564 If USE_VALUE_LABEL is true, and TEXT is a value label for the column's
565 variable, then stores the value from that value label instead of the literal
568 Returns true if anything was updated, false otherwise. */
570 psppire_data_store_set_string (PsppireDataStore *store,
572 glong row, const struct variable *var,
573 gboolean use_value_label)
579 n_cases = psppire_data_store_get_case_count (store);
583 psppire_data_store_insert_new_case (store, row);
585 case_index = var_get_case_index (var);
588 const struct val_labs *vls = var_get_value_labels (var);
589 const union value *value = vls ? val_labs_find_value (vls, text) : NULL;
591 ok = datasheet_put_value (store->datasheet, row, case_index, value);
596 ok = psppire_data_store_data_in (store, row, case_index, ss_cstr (text),
597 var_get_print_format (var));
600 g_signal_emit (store, signals [CASE_CHANGED], 0, row);
607 psppire_data_store_clear (PsppireDataStore *ds)
609 datasheet_destroy (ds->datasheet);
610 ds->datasheet = NULL;
612 psppire_dict_clear (ds->dict);
614 g_signal_emit (ds, signals [CASES_DELETED], 0, 0, -1);
619 /* Return a casereader made from this datastore */
621 psppire_data_store_get_reader (PsppireDataStore *ds)
624 struct casereader *reader ;
627 for (i = 0 ; i < n_dict_signals; ++i )
629 g_signal_handler_block (ds->dict,
630 ds->dict_handler_id[i]);
633 reader = datasheet_make_reader (ds->datasheet);
635 /* We must not reference this again */
636 ds->datasheet = NULL;
643 /* Column related funcs */
646 static const gchar null_var_name[]=N_("var");
652 /* Returns the CASENUMth case, or a null pointer on failure.
655 psppire_data_store_get_case (const PsppireDataStore *ds,
658 g_return_val_if_fail (ds, FALSE);
659 g_return_val_if_fail (ds->datasheet, FALSE);
661 return datasheet_get_row (ds->datasheet, casenum);
666 psppire_data_store_delete_cases (PsppireDataStore *ds, casenumber first,
669 g_return_val_if_fail (ds, FALSE);
670 g_return_val_if_fail (ds->datasheet, FALSE);
672 g_return_val_if_fail (first + n_cases <=
673 psppire_data_store_get_case_count (ds), FALSE);
676 datasheet_delete_rows (ds->datasheet, first, n_cases);
678 g_signal_emit (ds, signals [CASES_DELETED], 0, first, n_cases);
685 /* Insert case CC into the case file before POSN */
687 psppire_data_store_insert_case (PsppireDataStore *ds,
693 g_return_val_if_fail (ds, FALSE);
694 g_return_val_if_fail (ds->datasheet, FALSE);
697 result = datasheet_insert_rows (ds->datasheet, posn, &cc, 1);
700 g_signal_emit (ds, signals [CASE_INSERTED], 0, posn);
702 g_warning ("Cannot insert case at position %ld\n", posn);
708 /* Set the value of VAR in case CASENUM to V.
709 V must be the correct width for IDX.
710 Returns true if successful, false on I/O error. */
712 psppire_data_store_set_value (PsppireDataStore *ds, casenumber casenum,
713 const struct variable *var, const union value *v)
718 g_return_val_if_fail (ds, FALSE);
719 g_return_val_if_fail (ds->datasheet, FALSE);
721 n_cases = psppire_data_store_get_case_count (ds);
722 if ( casenum > n_cases)
725 if (casenum == n_cases)
726 psppire_data_store_insert_new_case (ds, casenum);
728 ok = datasheet_put_value (ds->datasheet, casenum, var_get_case_index (var),
731 g_signal_emit (ds, signals [CASE_CHANGED], 0, casenum);
739 /* Set the IDXth value of case C using D_IN */
741 psppire_data_store_data_in (PsppireDataStore *ds, casenumber casenum, gint idx,
742 struct substring input, const struct fmt_spec *fmt)
750 g_return_val_if_fail (ds, FALSE);
751 g_return_val_if_fail (ds->datasheet, FALSE);
753 g_return_val_if_fail (idx < datasheet_get_n_columns (ds->datasheet), FALSE);
757 width = fmt_var_width (fmt);
758 g_return_val_if_fail (caseproto_get_width (
759 datasheet_get_proto (ds->datasheet), idx) == width,
761 value_init (&value, width);
762 ok = (datasheet_get_value (ds->datasheet, casenum, idx, &value)
763 && data_in_msg (input, UTF8, fmt->type, &value, width,
764 dict_get_encoding (dict->dict))
765 && datasheet_put_value (ds->datasheet, casenum, idx, &value));
766 value_destroy (&value, width);
771 /* Resize the cases in the casefile, by inserting a value of the
772 given WIDTH into every one of them at the position immediately
776 psppire_data_store_insert_value (PsppireDataStore *ds,
777 gint width, gint where)
781 g_return_val_if_fail (ds, FALSE);
783 g_assert (width >= 0);
785 if ( ! ds->datasheet )
786 ds->datasheet = datasheet_create (NULL);
788 value_init (&value, width);
789 value_set_missing (&value, width);
791 datasheet_insert_column (ds->datasheet, &value, width, where);
792 value_destroy (&value, width);
798 psppire_data_store_filtered (PsppireDataStore *ds,
803 const struct dictionary *dict;
804 const struct variable *filter;
806 if ( row < 0 || row >= datasheet_get_n_rows (ds->datasheet))
809 dict = ds->dict->dict;
810 g_return_val_if_fail (dict, FALSE);
811 filter = dict_get_filter (dict);
815 g_return_val_if_fail (var_is_numeric (filter), FALSE);
816 value_init (&val, 0);
817 if ( ! datasheet_get_value (ds->datasheet, row,
818 var_get_case_index (filter),
822 return (val.f == 0.0);