2 PSPPIRE --- A Graphical User Interface for PSPP
3 Copyright (C) 2006 Free Software Foundation
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 #include "psppire-object.h"
25 #include "psppire-case-file.h"
27 #include <gtksheet/gtkextra-marshal.h>
29 #include <data/case.h>
30 #include <ui/flexifile.h>
31 #include "flexifile-factory.h"
32 #include <data/casefile.h>
33 #include <data/data-in.h>
34 #include <math/sort.h>
35 #include <libpspp/misc.h>
37 /* --- prototypes --- */
38 static void psppire_case_file_class_init (PsppireCaseFileClass *class);
39 static void psppire_case_file_init (PsppireCaseFile *case_file);
40 static void psppire_case_file_finalize (GObject *object);
43 /* --- variables --- */
44 static GObjectClass *parent_class = NULL;
51 static guint signal[n_SIGNALS];
54 /* --- functions --- */
56 * psppire_case_file_get_type:
57 * @returns: the type ID for accelerator groups.
60 psppire_case_file_get_type (void)
62 static GType object_type = 0;
66 static const GTypeInfo object_info = {
67 sizeof (PsppireCaseFileClass),
69 (GBaseFinalizeFunc) NULL,
70 (GClassInitFunc) psppire_case_file_class_init,
71 NULL, /* class_finalize */
72 NULL, /* class_data */
73 sizeof (PsppireCaseFile),
75 (GInstanceInitFunc) psppire_case_file_init,
78 object_type = g_type_register_static (G_TYPE_PSPPIRE_OBJECT, "PsppireCaseFile",
87 psppire_case_file_class_init (PsppireCaseFileClass *class)
89 GObjectClass *object_class = G_OBJECT_CLASS (class);
91 parent_class = g_type_class_peek_parent (class);
93 object_class->finalize = psppire_case_file_finalize;
95 signal[CASE_CHANGED] =
96 g_signal_new ("case_changed",
97 G_TYPE_FROM_CLASS (class),
101 g_cclosure_marshal_VOID__INT,
107 signal[CASE_INSERTED] =
108 g_signal_new ("case_inserted",
109 G_TYPE_FROM_CLASS (class),
113 g_cclosure_marshal_VOID__INT,
119 signal[CASES_DELETED] =
120 g_signal_new ("cases_deleted",
121 G_TYPE_FROM_CLASS (class),
125 gtkextra_VOID__INT_INT,
128 G_TYPE_INT, G_TYPE_INT);
132 psppire_case_file_finalize (GObject *object)
134 PsppireCaseFile *cf = PSPPIRE_CASE_FILE (object);
137 casefile_destroy (cf->flexifile);
139 G_OBJECT_CLASS (parent_class)->finalize (object);
143 psppire_case_file_init (PsppireCaseFile *cf)
150 * psppire_case_file_new:
151 * @returns: a new #PsppireCaseFile object
153 * Creates a new #PsppireCaseFile.
156 psppire_case_file_new (gint val_cnt)
158 PsppireCaseFile *cf = g_object_new (G_TYPE_PSPPIRE_CASE_FILE, NULL);
160 cf->flexifile = flexifile_create (val_cnt);
167 * psppire_case_file_new_from_flexifile:
168 * @returns: a new #PsppireCaseFile object
170 * Creates a new #PsppireCaseFile from an existing flexifile
173 psppire_case_file_new_from_flexifile (struct flexifile *ff)
175 PsppireCaseFile *cf = g_object_new (G_TYPE_PSPPIRE_CASE_FILE, NULL);
177 cf->flexifile = (struct casefile *) ff;
184 psppire_case_file_delete_cases (PsppireCaseFile *cf, gint n_cases, gint first)
188 g_return_val_if_fail (cf, FALSE);
189 g_return_val_if_fail (cf->flexifile, FALSE);
191 result = flexifile_delete_cases (FLEXIFILE (cf->flexifile), n_cases, first);
193 g_signal_emit (cf, signal[CASES_DELETED], 0, n_cases, first);
198 /* Insert case CC into the case file before POSN */
200 psppire_case_file_insert_case (PsppireCaseFile *cf,
206 g_return_val_if_fail (cf, FALSE);
207 g_return_val_if_fail (cf->flexifile, FALSE);
209 result = flexifile_insert_case (FLEXIFILE (cf->flexifile), cc, posn);
212 g_signal_emit (cf, signal[CASE_INSERTED], 0, posn);
214 g_warning ("Cannot insert case at position %d\n", posn);
220 /* Append a case to the case file */
222 psppire_case_file_append_case (PsppireCaseFile *cf,
228 g_return_val_if_fail (cf, FALSE);
229 g_return_val_if_fail (cf->flexifile, FALSE);
231 posn = casefile_get_case_cnt (cf->flexifile);
233 result = casefile_append (cf->flexifile, c);
235 g_signal_emit (cf, signal[CASE_INSERTED], 0, posn);
242 psppire_case_file_get_case_count (const PsppireCaseFile *cf)
244 g_return_val_if_fail (cf, FALSE);
246 if ( ! cf->flexifile)
249 return casefile_get_case_cnt (cf->flexifile);
252 /* Return the IDXth value from case CASENUM.
253 The return value must not be freed or written to
256 psppire_case_file_get_value (const PsppireCaseFile *cf, gint casenum, gint idx)
258 const union value *v;
261 g_return_val_if_fail (cf, NULL);
262 g_return_val_if_fail (cf->flexifile, NULL);
264 g_return_val_if_fail (idx < casefile_get_value_cnt (cf->flexifile), NULL);
266 flexifile_get_case (FLEXIFILE (cf->flexifile), casenum, &c);
268 v = case_data_idx (&c, idx);
275 psppire_case_file_clear (PsppireCaseFile *cf)
277 casefile_destroy (cf->flexifile);
279 g_signal_emit (cf, signal[CASES_DELETED], 0, 0, -1);
282 /* Set the IDXth value of case C to SYSMIS/EMPTY */
284 psppire_case_file_set_value (PsppireCaseFile *cf, gint casenum, gint idx,
285 union value *v, gint width)
290 g_return_val_if_fail (cf, FALSE);
291 g_return_val_if_fail (cf->flexifile, FALSE);
293 g_return_val_if_fail (idx < casefile_get_value_cnt (cf->flexifile), FALSE);
295 if ( ! flexifile_get_case (FLEXIFILE (cf->flexifile), casenum, &cc) )
299 bytes = MAX_SHORT_STRING;
301 bytes = DIV_RND_UP (width, MAX_SHORT_STRING) * MAX_SHORT_STRING ;
303 /* Cast away const in flagrant abuse of the casefile */
304 memcpy ((union value *)case_data_idx (&cc, idx), v, bytes);
306 g_signal_emit (cf, signal[CASE_CHANGED], 0, casenum);
313 /* Set the IDXth value of case C using D_IN */
315 psppire_case_file_data_in (PsppireCaseFile *cf, gint casenum, gint idx,
316 struct substring input, const struct fmt_spec *fmt)
320 g_return_val_if_fail (cf, FALSE);
321 g_return_val_if_fail (cf->flexifile, FALSE);
323 g_return_val_if_fail (idx < casefile_get_value_cnt (cf->flexifile), FALSE);
325 if ( ! flexifile_get_case (FLEXIFILE (cf->flexifile), casenum, &cc) )
328 /* Cast away const in flagrant abuse of the casefile */
329 if (!data_in (input, fmt->type, 0, 0,
330 (union value *) case_data_idx (&cc, idx), fmt_var_width (fmt)))
331 g_warning ("Cant set value\n");
333 g_signal_emit (cf, signal[CASE_CHANGED], 0, casenum);
340 psppire_case_file_sort (PsppireCaseFile *cf, const struct sort_criteria *sc)
344 struct casereader *reader = casefile_get_reader (cf->flexifile, NULL);
345 struct casefile *cfile;
347 struct casefile_factory *factory = flexifile_factory_create ();
349 cfile = sort_execute (reader, sc, factory);
351 casefile_destroy (cf->flexifile);
353 cf->flexifile = cfile;
355 /* FIXME: Need to have a signal to change a range of cases, instead of
356 calling a signal many times */
357 for ( c = 0 ; c < casefile_get_case_cnt (cf->flexifile) ; ++c )
358 g_signal_emit (cf, signal[CASE_CHANGED], 0, c);
360 flexifile_factory_destroy (factory);
364 /* Resize the cases in the casefile, by inserting N_VALUES into every
367 psppire_case_file_insert_values (PsppireCaseFile *cf,
368 gint n_values, gint before)
370 g_return_val_if_fail (cf, FALSE);
372 if ( ! cf->flexifile )
374 cf->flexifile = flexifile_create (n_values);
379 return flexifile_resize (FLEXIFILE (cf->flexifile), n_values, before);
382 /* Fills C with the CASENUMth case.
383 Returns true on success, false otherwise.
386 psppire_case_file_get_case (const PsppireCaseFile *cf, gint casenum,
389 g_return_val_if_fail (cf, FALSE);
390 g_return_val_if_fail (cf->flexifile, FALSE);
392 return flexifile_get_case (FLEXIFILE (cf->flexifile), casenum, c);