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);
171 g_return_val_if_fail (cf->accessible, FALSE);
173 g_return_val_if_fail (first + n_cases <=
174 psppire_case_file_get_case_count (cf), FALSE);
176 datasheet_delete_rows (cf->datasheet, first, n_cases);
178 g_signal_emit (cf, signals [CASES_DELETED], 0, first, n_cases);
183 /* Insert case CC into the case file before POSN */
185 psppire_case_file_insert_case (PsppireCaseFile *cf,
192 g_return_val_if_fail (cf, FALSE);
193 g_return_val_if_fail (cf->datasheet, FALSE);
194 g_return_val_if_fail (cf->accessible, FALSE);
196 case_clone (&tmp, cc);
197 result = datasheet_insert_rows (cf->datasheet, posn, &tmp, 1);
200 g_signal_emit (cf, signals [CASE_INSERTED], 0, posn);
202 g_warning ("Cannot insert case at position %ld\n", posn);
208 /* Append a case to the case file */
210 psppire_case_file_append_case (PsppireCaseFile *cf,
217 g_return_val_if_fail (cf, FALSE);
218 g_return_val_if_fail (cf->datasheet, FALSE);
219 g_return_val_if_fail (cf->accessible, FALSE);
221 posn = datasheet_get_row_cnt (cf->datasheet);
223 case_clone (&tmp, c);
224 result = datasheet_insert_rows (cf->datasheet, posn, &tmp, 1);
226 g_signal_emit (cf, signals [CASE_INSERTED], 0, posn);
233 psppire_case_file_get_case_count (const PsppireCaseFile *cf)
235 g_return_val_if_fail (cf, FALSE);
236 g_return_val_if_fail (cf->accessible, FALSE);
238 if ( ! cf->datasheet)
241 return datasheet_get_row_cnt (cf->datasheet);
244 /* Copies the IDXth value from case CASENUM into VALUE.
245 If VALUE is null, then memory is allocated is allocated with
246 malloc. Returns the value if successful, NULL on failure. */
248 psppire_case_file_get_value (const PsppireCaseFile *cf,
249 casenumber casenum, size_t idx,
250 union value *value, int width)
254 g_return_val_if_fail (cf, false);
255 g_return_val_if_fail (cf->datasheet, false);
257 g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), false);
261 value = xnmalloc (value_cnt_from_width (width), sizeof *value);
266 if (!datasheet_get_value (cf->datasheet, casenum, idx, value, width))
276 psppire_case_file_clear (PsppireCaseFile *cf)
278 datasheet_destroy (cf->datasheet);
279 cf->datasheet = NULL;
280 g_signal_emit (cf, signals [CASES_DELETED], 0, 0, -1);
283 /* Set the IDXth value of case C to V.
284 Returns true if successful, false on I/O error. */
286 psppire_case_file_set_value (PsppireCaseFile *cf, casenumber casenum, gint idx,
287 union value *v, gint width)
291 g_return_val_if_fail (cf, FALSE);
292 g_return_val_if_fail (cf->datasheet, FALSE);
294 g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
296 ok = datasheet_put_value (cf->datasheet, casenum, idx, v, width);
298 g_signal_emit (cf, signals [CASE_CHANGED], 0, casenum);
304 /* Set the IDXth value of case C using D_IN */
306 psppire_case_file_data_in (PsppireCaseFile *cf, casenumber casenum, gint idx,
307 struct substring input, const struct fmt_spec *fmt)
313 g_return_val_if_fail (cf, FALSE);
314 g_return_val_if_fail (cf->datasheet, FALSE);
316 g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
318 width = fmt_var_width (fmt);
319 value = xmalloca (value_cnt_from_width (width) * sizeof *value);
320 ok = (datasheet_get_value (cf->datasheet, casenum, idx, value, width)
321 && data_in (input, fmt->type, 0, 0, value, width)
322 && datasheet_put_value (cf->datasheet, casenum, idx, value, width));
325 g_signal_emit (cf, signals [CASE_CHANGED], 0, casenum);
334 psppire_case_file_sort (PsppireCaseFile *cf, struct case_ordering *ordering)
336 struct casereader *sorted_data;
339 sorted_data = sort_execute (datasheet_make_reader (cf->datasheet), ordering);
340 cf->datasheet = datasheet_create (sorted_data);
342 /* FIXME: Need to have a signal to change a range of cases, instead of
343 calling a signal many times */
344 for ( c = 0 ; c < datasheet_get_row_cnt (cf->datasheet) ; ++c )
345 g_signal_emit (cf, signals [CASE_CHANGED], 0, c);
349 /* Resize the cases in the casefile, by inserting N_VALUES into every
350 one of them at the position immediately preceeding WHERE.
353 psppire_case_file_insert_values (PsppireCaseFile *cf,
354 gint n_values, gint where)
356 g_return_val_if_fail (cf, FALSE);
357 g_return_val_if_fail (cf->accessible, FALSE);
362 g_assert (n_values > 0);
364 if ( ! cf->datasheet )
365 cf->datasheet = datasheet_create (NULL);
368 union value *values = xcalloc (n_values, sizeof *values);
369 datasheet_insert_columns (cf->datasheet, values, n_values, where);
377 /* Fills C with the CASENUMth case.
378 Returns true on success, false otherwise.
381 psppire_case_file_get_case (const PsppireCaseFile *cf, casenumber casenum,
384 g_return_val_if_fail (cf, FALSE);
385 g_return_val_if_fail (cf->datasheet, FALSE);
387 return datasheet_get_row (cf->datasheet, casenum, c);
393 psppire_case_file_make_reader (PsppireCaseFile *cf)
395 struct casereader *r = datasheet_make_reader (cf->datasheet);
396 cf->accessible = FALSE;