1 /* psppire-data-store.c
3 PSPPIRE --- A Graphical User Interface for PSPP
4 Copyright (C) 2006 Free Software Foundation
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 #define _(msgid) gettext (msgid)
26 #define N_(msgid) msgid
28 #include <data/casewriter.h>
29 #include <data/datasheet.h>
30 #include <data/data-out.h>
31 #include <data/variable.h>
33 #include <gtksheet/gtksheet.h>
34 #include <gtksheet/gsheetmodel.h>
35 #include <gtksheet/gsheet-column-iface.h>
37 #include <pango/pango-context.h>
39 #include "psppire-data-store.h"
40 #include "psppire-case-file.h"
43 #include <data/dictionary.h>
44 #include <data/missing-values.h>
45 #include <data/value-labels.h>
46 #include <data/data-in.h>
48 #include <data/file-handle-def.h>
49 #include <data/sys-file-writer.h>
53 static void psppire_data_store_init (PsppireDataStore *data_store);
54 static void psppire_data_store_class_init (PsppireDataStoreClass *class);
55 static void psppire_data_store_sheet_model_init (GSheetModelIface *iface);
56 static void psppire_data_store_sheet_column_init (GSheetColumnIface *iface);
57 static void psppire_data_store_sheet_row_init (GSheetRowIface *iface);
59 static void psppire_data_store_finalize (GObject *object);
61 static gchar *psppire_data_store_get_string (const GSheetModel *sheet_model, gint row, gint column);
63 static gboolean psppire_data_store_set_string (GSheetModel *model,
64 const gchar *text, gint row, gint column);
66 static gboolean psppire_data_store_clear_datum (GSheetModel *model,
67 gint row, gint column);
70 #define MIN_COLUMNS 10
72 #define TRAILING_ROWS 10
74 static GObjectClass *parent_class = NULL;
80 static guint signals [n_SIGNALS];
84 psppire_data_store_get_type (void)
86 static GType data_store_type = 0;
90 static const GTypeInfo data_store_info =
92 sizeof (PsppireDataStoreClass),
94 NULL, /* base_finalize */
95 (GClassInitFunc) psppire_data_store_class_init,
96 NULL, /* class_finalize */
97 NULL, /* class_data */
98 sizeof (PsppireDataStore),
100 (GInstanceInitFunc) psppire_data_store_init,
103 static const GInterfaceInfo sheet_model_info =
105 (GInterfaceInitFunc) psppire_data_store_sheet_model_init,
110 static const GInterfaceInfo sheet_column_info =
112 (GInterfaceInitFunc) psppire_data_store_sheet_column_init,
117 static const GInterfaceInfo sheet_row_info =
119 (GInterfaceInitFunc) psppire_data_store_sheet_row_init,
125 data_store_type = g_type_register_static (G_TYPE_OBJECT, "PsppireDataStore",
126 &data_store_info, 0);
128 g_type_add_interface_static (data_store_type,
132 g_type_add_interface_static (data_store_type,
136 g_type_add_interface_static (data_store_type,
141 return data_store_type;
146 psppire_data_store_class_init (PsppireDataStoreClass *class)
148 GObjectClass *object_class;
150 parent_class = g_type_class_peek_parent (class);
151 object_class = (GObjectClass*) class;
153 object_class->finalize = psppire_data_store_finalize;
155 signals [FONT_CHANGED] =
156 g_signal_new ("font_changed",
157 G_TYPE_FROM_CLASS (class),
161 g_cclosure_marshal_VOID__VOID,
169 psppire_data_store_get_var_count (const GSheetModel *model)
171 const PsppireDataStore *store = PSPPIRE_DATA_STORE (model);
173 return psppire_dict_get_var_cnt (store->dict);
177 psppire_data_store_get_case_count (const GSheetModel *model)
179 const PsppireDataStore *store = PSPPIRE_DATA_STORE (model);
181 return psppire_case_file_get_case_count (store->case_file);
186 psppire_data_store_init (PsppireDataStore *data_store)
188 data_store->dict = 0;
189 data_store->case_file = 0;
190 data_store->width_of_m = 10;
193 const PangoFontDescription *
194 psppire_data_store_get_font_desc (const GSheetModel *model,
195 gint row, gint column)
197 PsppireDataStore *store = PSPPIRE_DATA_STORE (model);
199 return store->font_desc;
204 psppire_data_store_sheet_model_init (GSheetModelIface *iface)
206 iface->free_strings = TRUE;
207 iface->get_string = psppire_data_store_get_string;
208 iface->set_string = psppire_data_store_set_string;
209 iface->clear_datum = psppire_data_store_clear_datum;
210 iface->is_editable = NULL;
211 iface->is_visible = NULL;
212 iface->get_foreground = NULL;
213 iface->get_background = NULL;
214 iface->get_font_desc = psppire_data_store_get_font_desc;
215 iface->get_cell_border = NULL;
216 iface->get_column_count = psppire_data_store_get_var_count;
217 iface->get_row_count = psppire_data_store_get_case_count;
221 gboolean always_true ()
228 delete_cases_callback (GtkWidget *w, gint first, gint n_cases, gpointer data)
230 PsppireDataStore *store ;
232 g_return_if_fail (data);
234 store = PSPPIRE_DATA_STORE (data);
236 g_assert (first >= 0);
238 g_sheet_model_rows_deleted (G_SHEET_MODEL (store), first, n_cases);
243 insert_case_callback (GtkWidget *w, gint casenum, gpointer data)
245 PsppireDataStore *store ;
247 g_return_if_fail (data);
249 store = PSPPIRE_DATA_STORE (data);
251 g_sheet_model_range_changed (G_SHEET_MODEL (store),
253 psppire_case_file_get_case_count (store->case_file),
256 g_sheet_model_rows_inserted (G_SHEET_MODEL (store), casenum, 1);
261 changed_case_callback (GtkWidget *w, gint casenum, gpointer data)
263 PsppireDataStore *store ;
264 g_return_if_fail (data);
266 store = PSPPIRE_DATA_STORE (data);
268 g_sheet_model_range_changed (G_SHEET_MODEL (store),
275 delete_variables_callback (GObject *obj, gint var_num, gint n_vars, gpointer data)
277 PsppireDataStore *store ;
279 g_return_if_fail (data);
281 store = PSPPIRE_DATA_STORE (data);
283 g_sheet_model_columns_deleted (G_SHEET_MODEL (store), var_num, n_vars);
285 g_sheet_column_columns_changed (G_SHEET_COLUMN (store),
291 variable_changed_callback (GObject *obj, gint var_num, gpointer data)
293 PsppireDataStore *store;
295 g_return_if_fail (data);
297 store = PSPPIRE_DATA_STORE (data);
299 g_sheet_column_columns_changed (G_SHEET_COLUMN (store),
303 g_sheet_model_range_changed (G_SHEET_MODEL (store),
309 insert_variable_callback (GObject *obj, gint var_num, gpointer data)
311 PsppireDataStore *store;
314 g_return_if_fail (data);
316 store = PSPPIRE_DATA_STORE (data);
320 struct variable *variable =
321 psppire_dict_get_variable (store->dict, var_num);
323 g_assert (variable != NULL);
325 posn = var_get_case_index (variable);
332 psppire_case_file_insert_values (store->case_file, 1, posn);
334 g_sheet_column_columns_changed (G_SHEET_COLUMN (store),
337 g_sheet_model_columns_inserted (G_SHEET_MODEL (store), var_num, 1);
342 dict_size_change_callback (GObject *obj,
343 gint posn, gint adjustment, gpointer data)
345 PsppireDataStore *store ;
347 g_return_if_fail (data);
349 store = PSPPIRE_DATA_STORE (data);
351 psppire_case_file_insert_values (store->case_file, adjustment, posn);
357 * psppire_data_store_new:
358 * @dict: The dictionary for this data_store.
361 * Return value: a new #PsppireDataStore
364 psppire_data_store_new (PsppireDict *dict)
366 PsppireDataStore *retval;
368 retval = g_object_new (GTK_TYPE_DATA_STORE, NULL);
370 psppire_data_store_set_dictionary (retval, dict);
377 psppire_data_store_set_case_file (PsppireDataStore *data_store,
380 if ( data_store->case_file)
382 g_object_unref (data_store->case_file);
385 data_store->case_file = cf;
387 g_signal_connect (data_store->case_file, "cases-deleted",
388 G_CALLBACK (delete_cases_callback),
391 g_signal_connect (data_store->case_file, "case-inserted",
392 G_CALLBACK (insert_case_callback),
396 g_signal_connect (data_store->case_file, "case-changed",
397 G_CALLBACK (changed_case_callback),
404 * psppire_data_store_replace_set_dictionary:
405 * @data_store: The variable store
406 * @dict: The dictionary to set
408 * If a dictionary is already associated with the data-store, then it will be
412 psppire_data_store_set_dictionary (PsppireDataStore *data_store, PsppireDict *dict)
414 data_store->dict = dict;
416 g_signal_connect (dict, "variable-inserted",
417 G_CALLBACK (insert_variable_callback),
420 g_signal_connect (dict, "variables-deleted",
421 G_CALLBACK (delete_variables_callback),
424 g_signal_connect (dict, "variable-changed",
425 G_CALLBACK (variable_changed_callback),
429 g_signal_connect (dict, "dict-size-changed",
430 G_CALLBACK (dict_size_change_callback),
433 /* The entire model has changed */
434 g_sheet_model_range_changed (G_SHEET_MODEL (data_store), -1, -1, -1, -1);
436 g_sheet_column_columns_changed (G_SHEET_COLUMN (data_store), 0, -1);
440 psppire_data_store_finalize (GObject *object)
444 (* parent_class->finalize) (object);
449 /* Insert a blank case before POSN */
451 psppire_data_store_insert_new_case (PsppireDataStore *ds, gint posn)
456 g_return_val_if_fail (ds, FALSE);
459 /* Opportunity for optimisation exists here when creating a blank case */
460 val_cnt = datasheet_get_column_cnt (ds->case_file->datasheet) ;
462 case_create (&cc, val_cnt);
464 memset ( case_data_rw_idx (&cc, 0), 0, val_cnt * MAX_SHORT_STRING);
466 for (v = 0 ; v < psppire_dict_get_var_cnt (ds->dict) ; ++v)
468 const struct variable *pv = psppire_dict_get_variable (ds->dict, v);
469 if ( var_is_alpha (pv))
472 case_data_rw (&cc, pv)->f = SYSMIS;
475 result = psppire_case_file_insert_case (ds->case_file, &cc, posn);
484 psppire_data_store_get_string (const GSheetModel *model, gint row, gint column)
488 const struct fmt_spec *fp ;
489 const struct variable *pv ;
492 PsppireDataStore *store = PSPPIRE_DATA_STORE (model);
494 g_return_val_if_fail (store->dict, NULL);
495 g_return_val_if_fail (store->case_file, NULL);
497 if (column >= psppire_dict_get_var_cnt (store->dict))
500 if ( row >= psppire_case_file_get_case_count (store->case_file))
503 pv = psppire_dict_get_variable (store->dict, column);
507 idx = var_get_case_index (pv);
511 v = psppire_case_file_get_value (store->case_file, row, idx, NULL,
514 g_return_val_if_fail (v, NULL);
516 if ( store->show_labels)
518 const gchar *label = var_lookup_value_label (pv, v);
522 return pspp_locale_to_utf8 (label, -1, 0);
526 fp = var_get_write_format (pv);
528 s = g_string_sized_new (fp->w + 1);
529 g_string_set_size (s, fp->w);
531 memset (s->str, 0, fp->w);
533 g_assert (fp->w == s->len);
535 /* Converts binary value V into printable form in the exactly
536 FP->W character in buffer S according to format specification
537 FP. No null terminator is appended to the buffer. */
538 data_out (v, fp, s->str);
540 text = pspp_locale_to_utf8 (s->str, fp->w, 0);
541 g_string_free (s, TRUE);
551 psppire_data_store_clear_datum (GSheetModel *model,
555 PsppireDataStore *store = PSPPIRE_DATA_STORE (model);
558 const struct variable *pv = psppire_dict_get_variable (store->dict, col);
560 const gint index = var_get_case_index (pv) ;
562 if ( var_is_numeric (pv))
565 memcpy (v.s, "", MAX_SHORT_STRING);
567 psppire_case_file_set_value (store->case_file, row, index, &v,
574 /* Attempts to update that part of the variable store which corresponds
575 to ROW, COL with the value TEXT.
576 Returns true if anything was updated, false otherwise.
579 psppire_data_store_set_string (GSheetModel *model,
580 const gchar *text, gint row, gint col)
582 PsppireDataStore *store = PSPPIRE_DATA_STORE (model);
584 const struct variable *pv = psppire_dict_get_variable (store->dict, col);
585 g_return_val_if_fail (pv, FALSE);
588 /* Allow the user to insert a lot of blank cases, simply by skipping rows */
589 for (r = psppire_case_file_get_case_count (store->case_file); r <= row ; ++r)
594 psppire_case_array_insert_case (store->cases, r, 0, 0);
597 for (c = 0 ; c < psppire_dict_get_var_cnt (store->dict); ++c )
598 psppire_data_store_clear_datum (model, r, c);
602 psppire_case_file_data_in (store->case_file, row,
603 var_get_case_index (pv), ss_cstr (text),
604 var_get_write_format (pv));
611 psppire_data_store_set_font (PsppireDataStore *store,
612 const PangoFontDescription *fd)
614 g_return_if_fail (store);
615 g_return_if_fail (PSPPIRE_IS_DATA_STORE (store));
617 store->font_desc = fd;
619 store->width_of_m = calc_m_width (fd);
621 g_signal_emit (store, signals [FONT_CHANGED], 0);
624 g_sheet_model_range_changed (G_SHEET_MODEL (store),
630 psppire_data_store_show_labels (PsppireDataStore *store, gboolean show_labels)
632 g_return_if_fail (store);
633 g_return_if_fail (PSPPIRE_IS_DATA_STORE (store));
635 store->show_labels = show_labels;
637 g_sheet_model_range_changed (G_SHEET_MODEL (store),
643 /* FIXME: There's no reason to actually have this function.
644 It should be done by a procedure */
646 psppire_data_store_create_system_file (PsppireDataStore *store,
647 struct file_handle *handle)
650 const struct sfm_write_options wo = {
651 true, /* writeable */
652 false, /* dont compress */
656 struct casewriter *writer;
660 writer = sfm_open_writer (handle, store->dict->dict, wo);
666 var_cnt = psppire_data_store_get_var_count (G_SHEET_MODEL (store));
668 for (i = 0 ; i < psppire_case_file_get_case_count (store->case_file); ++i )
671 psppire_case_file_get_case (store->case_file, i, &c);
672 casewriter_write (writer, &c);
674 casewriter_destroy (writer);
680 psppire_data_store_clear (PsppireDataStore *data_store)
682 psppire_case_file_clear (data_store->case_file);
684 psppire_dict_clear (data_store->dict);
689 /* Return a casereader made from this datastore */
691 psppire_data_store_get_reader (PsppireDataStore *ds)
693 struct casereader *reader ;
695 reader = psppire_case_file_make_reader (ds->case_file);
702 /* Column related funcs */
705 geometry_get_column_count (const GSheetColumn *geom)
707 PsppireDataStore *ds = PSPPIRE_DATA_STORE (geom);
709 return MAX (MIN_COLUMNS, psppire_dict_get_var_cnt (ds->dict));
715 geometry_get_width (const GSheetColumn *geom, gint unit)
717 const struct variable *pv ;
718 PsppireDataStore *ds = PSPPIRE_DATA_STORE (geom);
720 if ( unit >= psppire_dict_get_var_cnt (ds->dict) )
721 return ds->width_of_m * 8 ;
723 pv = psppire_dict_get_variable (ds->dict, unit);
726 return ds->width_of_m * 8 ;
728 return ds->width_of_m * var_get_display_width (pv);
732 geometry_set_width (GSheetColumn *geom, gint unit, gint width)
734 PsppireDataStore *ds = PSPPIRE_DATA_STORE (geom);
736 struct variable *pv = psppire_dict_get_variable (ds->dict, unit);
738 var_set_display_width (pv, width / ds->width_of_m );
743 static GtkJustification
744 geometry_get_justification (const GSheetColumn *geom, gint unit)
746 PsppireDataStore *ds = PSPPIRE_DATA_STORE (geom);
747 const struct variable *pv ;
750 if ( unit >= psppire_dict_get_var_cnt (ds->dict) )
751 return GTK_JUSTIFY_LEFT;
753 pv = psppire_dict_get_variable (ds->dict, unit);
755 return (var_get_alignment (pv) == ALIGN_LEFT ? GTK_JUSTIFY_LEFT
756 : var_get_alignment (pv) == ALIGN_RIGHT ? GTK_JUSTIFY_RIGHT
757 : GTK_JUSTIFY_CENTER);
761 static const gchar null_var_name[]=N_("var");
764 geometry_get_column_button_label (const GSheetColumn *geom, gint unit)
767 struct variable *pv ;
768 PsppireDataStore *ds = PSPPIRE_DATA_STORE (geom);
770 if ( unit >= psppire_dict_get_var_cnt (ds->dict) )
771 return g_locale_to_utf8 (null_var_name, -1, 0, 0, 0);
773 pv = psppire_dict_get_variable (ds->dict, unit);
775 text = pspp_locale_to_utf8 (var_get_name (pv), -1, 0);
782 geometry_get_sensitivity (const GSheetColumn *geom, gint unit)
784 PsppireDataStore *ds = PSPPIRE_DATA_STORE (geom);
786 return (unit < psppire_dict_get_var_cnt (ds->dict));
791 psppire_data_store_sheet_column_init (GSheetColumnIface *iface)
793 iface->get_column_count = geometry_get_column_count;
794 iface->get_width = geometry_get_width;
795 iface->set_width = geometry_set_width;
796 iface->get_visibility = always_true;
797 iface->get_sensitivity = geometry_get_sensitivity;
798 iface->get_justification = geometry_get_justification;
799 iface->get_button_label = geometry_get_column_button_label;
803 /* Row related funcs */
806 geometry_get_row_count (const GSheetRow *geom, gpointer data)
808 PsppireDataStore *ds = PSPPIRE_DATA_STORE (geom);
810 return TRAILING_ROWS + psppire_case_file_get_case_count (ds->case_file);
815 geometry_get_height (const GSheetRow *geom, gint unit, gpointer data)
822 geometry_get_row_sensitivity (const GSheetRow *geom, gint unit, gpointer data)
824 PsppireDataStore *ds = PSPPIRE_DATA_STORE (geom);
827 return (unit < psppire_case_file_get_case_count (ds->case_file));
832 geometry_get_row_button_label (const GSheetRow *geom, gint unit, gpointer data)
836 PsppireDataStore *ds = PSPPIRE_DATA_STORE (geom);
839 TRAILING_ROWS + psppire_case_file_get_case_count (ds->case_file))
842 s = g_strdup_printf (_("%d"), unit);
844 text = pspp_locale_to_utf8 (s, -1, 0);
853 psppire_data_store_sheet_row_init (GSheetRowIface *iface)
855 iface->get_row_count = geometry_get_row_count;
857 iface->get_height = geometry_get_height;
858 iface->set_height = 0;
859 iface->get_visibility = always_true;
860 iface->get_sensitivity = geometry_get_row_sensitivity;
862 iface->get_button_label = geometry_get_row_button_label;