1 /* PSPPIRE - a graphical user interface for PSPP.
2 Copyright (C) 2006 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 #include "psppire-case-file.h"
23 #include <gtksheet/gtkextra-marshal.h>
25 #include <data/case.h>
26 #include <data/data-in.h>
27 #include <data/datasheet.h>
28 #include <data/casereader.h>
29 #include <math/sort.h>
30 #include <libpspp/misc.h>
35 /* --- prototypes --- */
36 static void psppire_case_file_class_init (PsppireCaseFileClass *class);
37 static void psppire_case_file_init (PsppireCaseFile *case_file);
38 static void psppire_case_file_finalize (GObject *object);
41 /* --- variables --- */
42 static GObjectClass *parent_class = NULL;
49 static guint signals [n_SIGNALS];
52 /* --- functions --- */
54 * psppire_case_file_get_type:
55 * @returns: the type ID for accelerator groups.
58 psppire_case_file_get_type (void)
60 static GType object_type = 0;
64 static const GTypeInfo object_info = {
65 sizeof (PsppireCaseFileClass),
67 (GBaseFinalizeFunc) NULL,
68 (GClassInitFunc) psppire_case_file_class_init,
69 NULL, /* class_finalize */
70 NULL, /* class_data */
71 sizeof (PsppireCaseFile),
73 (GInstanceInitFunc) psppire_case_file_init,
76 object_type = g_type_register_static (G_TYPE_OBJECT, "PsppireCaseFile",
85 psppire_case_file_class_init (PsppireCaseFileClass *class)
87 GObjectClass *object_class = G_OBJECT_CLASS (class);
89 parent_class = g_type_class_peek_parent (class);
91 object_class->finalize = psppire_case_file_finalize;
93 signals [CASE_CHANGED] =
94 g_signal_new ("case-changed",
95 G_TYPE_FROM_CLASS (class),
99 g_cclosure_marshal_VOID__INT,
105 signals [CASE_INSERTED] =
106 g_signal_new ("case-inserted",
107 G_TYPE_FROM_CLASS (class),
111 g_cclosure_marshal_VOID__INT,
117 signals [CASES_DELETED] =
118 g_signal_new ("cases-deleted",
119 G_TYPE_FROM_CLASS (class),
123 gtkextra_VOID__INT_INT,
126 G_TYPE_INT, G_TYPE_INT);
130 psppire_case_file_finalize (GObject *object)
132 PsppireCaseFile *cf = PSPPIRE_CASE_FILE (object);
135 datasheet_destroy (cf->datasheet);
137 G_OBJECT_CLASS (parent_class)->finalize (object);
141 psppire_case_file_init (PsppireCaseFile *cf)
143 cf->datasheet = NULL;
144 cf->accessible = FALSE;
149 * psppire_case_file_new:
150 * @returns: a new #PsppireCaseFile object
152 * Creates a new #PsppireCaseFile.
155 psppire_case_file_new (const struct casereader *reader)
157 PsppireCaseFile *cf = g_object_new (G_TYPE_PSPPIRE_CASE_FILE, NULL);
159 cf->datasheet = datasheet_create (casereader_clone (reader));
160 cf->accessible = TRUE;
167 psppire_case_file_delete_cases (PsppireCaseFile *cf, casenumber n_cases, casenumber first)
169 g_return_val_if_fail (cf, FALSE);
170 g_return_val_if_fail (cf->datasheet, FALSE);
172 g_return_val_if_fail (first + n_cases <=
173 psppire_case_file_get_case_count (cf), FALSE);
175 datasheet_delete_rows (cf->datasheet, first, n_cases);
177 g_signal_emit (cf, signals [CASES_DELETED], 0, first, n_cases);
182 /* Insert case CC into the case file before POSN */
184 psppire_case_file_insert_case (PsppireCaseFile *cf,
191 g_return_val_if_fail (cf, FALSE);
192 g_return_val_if_fail (cf->datasheet, FALSE);
194 case_clone (&tmp, cc);
195 result = datasheet_insert_rows (cf->datasheet, posn, &tmp, 1);
198 g_signal_emit (cf, signals [CASE_INSERTED], 0, posn);
200 g_warning ("Cannot insert case at position %ld\n", posn);
206 /* Append a case to the case file */
208 psppire_case_file_append_case (PsppireCaseFile *cf,
215 g_return_val_if_fail (cf, FALSE);
216 g_return_val_if_fail (cf->datasheet, FALSE);
218 posn = datasheet_get_row_cnt (cf->datasheet);
220 case_clone (&tmp, c);
221 result = datasheet_insert_rows (cf->datasheet, posn, &tmp, 1);
223 g_signal_emit (cf, signals [CASE_INSERTED], 0, posn);
230 psppire_case_file_get_case_count (const PsppireCaseFile *cf)
232 g_return_val_if_fail (cf, FALSE);
233 g_return_val_if_fail (cf->accessible, FALSE);
235 if ( ! cf->datasheet)
238 return datasheet_get_row_cnt (cf->datasheet);
241 /* Copies the IDXth value from case CASENUM into VALUE.
242 If VALUE is null, then memory is allocated is allocated with
243 malloc. Returns the value if successful, NULL on failure. */
245 psppire_case_file_get_value (const PsppireCaseFile *cf,
246 casenumber casenum, size_t idx,
247 union value *value, int width)
251 g_return_val_if_fail (cf, false);
252 g_return_val_if_fail (cf->datasheet, false);
254 g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), false);
258 value = xnmalloc (value_cnt_from_width (width), sizeof *value);
263 if (!datasheet_get_value (cf->datasheet, casenum, idx, value, width))
273 psppire_case_file_clear (PsppireCaseFile *cf)
275 datasheet_destroy (cf->datasheet);
276 cf->datasheet = NULL;
277 g_signal_emit (cf, signals [CASES_DELETED], 0, 0, -1);
280 /* Set the IDXth value of case C to V.
281 Returns true if successful, false on I/O error. */
283 psppire_case_file_set_value (PsppireCaseFile *cf, casenumber casenum, gint idx,
284 union value *v, gint width)
288 g_return_val_if_fail (cf, FALSE);
289 g_return_val_if_fail (cf->datasheet, FALSE);
291 g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
293 ok = datasheet_put_value (cf->datasheet, casenum, idx, v, width);
295 g_signal_emit (cf, signals [CASE_CHANGED], 0, casenum);
301 /* Set the IDXth value of case C using D_IN */
303 psppire_case_file_data_in (PsppireCaseFile *cf, casenumber casenum, gint idx,
304 struct substring input, const struct fmt_spec *fmt)
310 g_return_val_if_fail (cf, FALSE);
311 g_return_val_if_fail (cf->datasheet, FALSE);
313 g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
315 width = fmt_var_width (fmt);
316 value = xmalloca (value_cnt_from_width (width) * sizeof *value);
317 ok = (datasheet_get_value (cf->datasheet, casenum, idx, value, width)
318 && data_in (input, fmt->type, 0, 0, value, width)
319 && datasheet_put_value (cf->datasheet, casenum, idx, value, width));
322 g_signal_emit (cf, signals [CASE_CHANGED], 0, casenum);
331 psppire_case_file_sort (PsppireCaseFile *cf, struct case_ordering *ordering)
333 struct casereader *sorted_data;
336 sorted_data = sort_execute (datasheet_make_reader (cf->datasheet), ordering);
337 cf->datasheet = datasheet_create (sorted_data);
339 /* FIXME: Need to have a signal to change a range of cases, instead of
340 calling a signal many times */
341 for ( c = 0 ; c < datasheet_get_row_cnt (cf->datasheet) ; ++c )
342 g_signal_emit (cf, signals [CASE_CHANGED], 0, c);
346 /* Resize the cases in the casefile, by inserting N_VALUES into every
347 one of them at the position immediately preceeding WHERE.
350 psppire_case_file_insert_values (PsppireCaseFile *cf,
351 gint n_values, gint where)
353 g_return_val_if_fail (cf, FALSE);
354 g_return_val_if_fail (cf->accessible, FALSE);
359 g_assert (n_values > 0);
361 if ( ! cf->datasheet )
362 cf->datasheet = datasheet_create (NULL);
365 union value *values = xcalloc (n_values, sizeof *values);
366 datasheet_insert_columns (cf->datasheet, values, n_values, where);
374 /* Fills C with the CASENUMth case.
375 Returns true on success, false otherwise.
378 psppire_case_file_get_case (const PsppireCaseFile *cf, casenumber casenum,
381 g_return_val_if_fail (cf, FALSE);
382 g_return_val_if_fail (cf->datasheet, FALSE);
384 return datasheet_get_row (cf->datasheet, casenum, c);
390 psppire_case_file_make_reader (PsppireCaseFile *cf)
392 struct casereader *r = datasheet_make_reader (cf->datasheet);
393 cf->accessible = FALSE;