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);
209 psppire_case_file_get_case_count (const PsppireCaseFile *cf)
211 g_return_val_if_fail (cf, FALSE);
212 g_return_val_if_fail (cf->accessible, FALSE);
214 if ( ! cf->datasheet)
217 return datasheet_get_row_cnt (cf->datasheet);
220 /* Copies the IDXth value from case CASENUM into VALUE.
221 If VALUE is null, then memory is allocated is allocated with
222 malloc. Returns the value if successful, NULL on failure. */
224 psppire_case_file_get_value (const PsppireCaseFile *cf,
225 casenumber casenum, size_t idx,
226 union value *value, int width)
230 g_return_val_if_fail (cf, false);
231 g_return_val_if_fail (cf->datasheet, false);
233 g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), false);
237 value = xnmalloc (value_cnt_from_width (width), sizeof *value);
242 if (!datasheet_get_value (cf->datasheet, casenum, idx, value, width))
252 psppire_case_file_clear (PsppireCaseFile *cf)
254 datasheet_destroy (cf->datasheet);
255 cf->datasheet = NULL;
256 g_signal_emit (cf, signals [CASES_DELETED], 0, 0, -1);
259 /* Set the IDXth value of case C to V.
260 Returns true if successful, false on I/O error. */
262 psppire_case_file_set_value (PsppireCaseFile *cf, casenumber casenum, gint idx,
263 union value *v, gint width)
267 g_return_val_if_fail (cf, FALSE);
268 g_return_val_if_fail (cf->datasheet, FALSE);
270 g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
272 ok = datasheet_put_value (cf->datasheet, casenum, idx, v, width);
274 g_signal_emit (cf, signals [CASE_CHANGED], 0, casenum);
280 /* Set the IDXth value of case C using D_IN */
282 psppire_case_file_data_in (PsppireCaseFile *cf, casenumber casenum, gint idx,
283 struct substring input, const struct fmt_spec *fmt)
289 g_return_val_if_fail (cf, FALSE);
290 g_return_val_if_fail (cf->datasheet, FALSE);
292 g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
294 width = fmt_var_width (fmt);
295 value = xmalloca (value_cnt_from_width (width) * sizeof *value);
296 ok = (datasheet_get_value (cf->datasheet, casenum, idx, value, width)
297 && data_in (input, LEGACY_NATIVE, fmt->type, 0, 0, value, width)
298 && datasheet_put_value (cf->datasheet, casenum, idx, value, width));
301 g_signal_emit (cf, signals [CASE_CHANGED], 0, casenum);
310 psppire_case_file_sort (PsppireCaseFile *cf, struct case_ordering *ordering)
312 struct casereader *sorted_data;
315 sorted_data = sort_execute (datasheet_make_reader (cf->datasheet), ordering);
316 cf->datasheet = datasheet_create (sorted_data);
318 /* FIXME: Need to have a signal to change a range of cases, instead of
319 calling a signal many times */
320 for ( c = 0 ; c < datasheet_get_row_cnt (cf->datasheet) ; ++c )
321 g_signal_emit (cf, signals [CASE_CHANGED], 0, c);
325 /* Resize the cases in the casefile, by inserting N_VALUES into every
326 one of them at the position immediately preceeding WHERE.
329 psppire_case_file_insert_values (PsppireCaseFile *cf,
330 gint n_values, gint where)
332 g_return_val_if_fail (cf, FALSE);
333 g_return_val_if_fail (cf->accessible, FALSE);
338 g_assert (n_values > 0);
340 if ( ! cf->datasheet )
341 cf->datasheet = datasheet_create (NULL);
344 union value *values = xcalloc (n_values, sizeof *values);
345 datasheet_insert_columns (cf->datasheet, values, n_values, where);
353 /* Fills C with the CASENUMth case.
354 Returns true on success, false otherwise.
357 psppire_case_file_get_case (const PsppireCaseFile *cf, casenumber casenum,
360 g_return_val_if_fail (cf, FALSE);
361 g_return_val_if_fail (cf->datasheet, FALSE);
363 return datasheet_get_row (cf->datasheet, casenum, c);
369 psppire_case_file_make_reader (PsppireCaseFile *cf)
371 struct casereader *r = datasheet_make_reader (cf->datasheet);
372 cf->accessible = FALSE;