1 /* PSPPIRE - a graphical user interface for PSPP.
2 Copyright (C) 2007, 2009, 2011, 2012 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/>. */
18 /* This module implements the "Find" dialog; a dialog box to locate cases
19 which match particular strings */
23 #include "find-dialog.h"
24 #include "psppire-selector.h"
25 #include "psppire-dialog.h"
26 #include "builder-wrapper.h"
28 #include "psppire-data-window.h"
29 #include "dict-display.h"
30 #include <data/value.h>
31 #include <data/format.h>
32 #include <data/datasheet.h>
33 #include <data/data-in.h>
34 #include "psppire-data-store.h"
36 #include <sys/types.h>
38 #include <libpspp/cast.h>
39 #include <libpspp/message.h>
47 #define _(msgid) gettext (msgid)
48 #define N_(msgid) msgid
51 /* FIXME: These shouldn't be here */
52 #include "psppire-var-store.h"
58 struct datasheet *data;
59 PsppireDataWindow *de;
60 GtkWidget *variable_entry;
61 GtkWidget *value_entry;
62 GtkWidget *value_labels_checkbox;
63 GtkWidget *match_regexp_checkbox;
64 GtkWidget *match_substring_checkbox;
68 find_value (const struct find_dialog *fd, casenumber current_row,
69 casenumber *row, int *column);
72 /* A callback which occurs whenever the "Refresh" button is clicked,
73 and when the dialog pops up.
74 It restores the dialog to its default state.
77 refresh (GObject *obj, const struct find_dialog *fd)
79 gtk_toggle_button_set_active
80 (GTK_TOGGLE_BUTTON (get_widget_assert (fd->xml, "find-wrap")),
83 gtk_toggle_button_set_active
84 (GTK_TOGGLE_BUTTON (get_widget_assert (fd->xml, "find-backwards")),
87 gtk_entry_set_text (GTK_ENTRY (fd->variable_entry), "");
88 gtk_entry_set_text (GTK_ENTRY (fd->value_entry), "");
90 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (fd->match_regexp_checkbox),
93 gtk_toggle_button_set_active
94 (GTK_TOGGLE_BUTTON (fd->match_substring_checkbox), FALSE);
97 gtk_toggle_button_set_active
98 (GTK_TOGGLE_BUTTON (fd->match_substring_checkbox), FALSE);
101 /* Callback on the "Find" button */
103 do_find (GObject *obj, const struct find_dialog *fd)
109 g_object_get (fd->de->data_editor, "current-case", &row, NULL);
114 find_value (fd, row, &x, &column);
119 gtk_notebook_set_current_page (GTK_NOTEBOOK (fd->de->data_editor),
120 PSPPIRE_DATA_EDITOR_DATA_VIEW);
122 g_object_set (fd->de->data_editor,
124 "current-variable", column,
130 /* Callback on the selector.
131 It gets invoked whenever a variable is selected */
133 on_select (GtkEntry *entry, gpointer data)
135 struct find_dialog *fd = data;
136 const char *var_name = gtk_entry_get_text (GTK_ENTRY (fd->variable_entry));
137 struct variable *var = dict_lookup_var (fd->dict->dict, var_name);
138 gboolean search_labels ;
140 g_return_if_fail (var);
142 gtk_widget_set_sensitive (fd->value_labels_checkbox,
143 var_has_value_labels (var));
146 gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (fd->value_labels_checkbox));
148 gtk_widget_set_sensitive (fd->match_regexp_checkbox,
149 var_is_alpha (var) || search_labels);
152 gtk_widget_set_sensitive (fd->match_substring_checkbox,
153 var_is_alpha (var) || search_labels);
156 /* Callback on the selector.
157 It gets invoked whenever a variable is unselected */
159 on_deselect (GtkEntry *entry, gpointer data)
161 struct find_dialog *fd = data;
163 gtk_widget_set_sensitive (fd->value_labels_checkbox, FALSE);
164 gtk_widget_set_sensitive (fd->match_substring_checkbox, FALSE);
165 gtk_widget_set_sensitive (fd->match_regexp_checkbox, FALSE);
169 value_labels_toggled (GtkToggleButton *tb, gpointer data)
171 struct find_dialog *fd = data;
173 const char *var_name = gtk_entry_get_text (GTK_ENTRY (fd->variable_entry));
174 const struct variable *var = dict_lookup_var (fd->dict->dict, var_name);
176 gboolean active = gtk_toggle_button_get_active (tb) ;
178 gtk_widget_set_sensitive (fd->match_substring_checkbox,
179 active || (var && var_is_alpha (var)));
181 gtk_widget_set_sensitive (fd->match_regexp_checkbox,
182 active || (var && var_is_alpha (var)));
185 /* Pops up the Find dialog box
188 find_dialog (PsppireDataWindow *de)
190 struct find_dialog fd;
195 GtkWidget *find_button;
197 GtkWidget *buttonbox;
199 PsppireVarStore *vs ;
200 PsppireDataStore *ds ;
202 fd.xml = builder_new ("find.ui");
205 find_button = gtk_button_new_from_stock (GTK_STOCK_FIND);
206 gtk_widget_show (find_button);
208 buttonbox = get_widget_assert (fd.xml, "find-buttonbox");
210 psppire_box_pack_start_defaults (GTK_BOX (buttonbox), find_button);
211 gtk_box_reorder_child (GTK_BOX (buttonbox), find_button, 0);
213 dialog = get_widget_assert (fd.xml, "find-dialog");
214 source = get_widget_assert (fd.xml, "find-variable-treeview");
215 selector = get_widget_assert (fd.xml, "find-selector");
217 g_object_get (de->data_editor,
222 g_object_get (vs, "dictionary", &fd.dict, NULL);
224 fd.data = ds->datasheet;
226 fd.variable_entry = get_widget_assert (fd.xml, "find-variable-entry");
227 fd.value_entry = get_widget_assert (fd.xml, "find-value-entry");
228 fd.value_labels_checkbox =
229 get_widget_assert (fd.xml,
230 "find-value-labels-checkbutton");
232 fd.match_regexp_checkbox =
233 get_widget_assert (fd.xml,
234 "find-match-regexp-checkbutton");
236 fd.match_substring_checkbox =
237 get_widget_assert (fd.xml,
238 "find-match-substring-checkbutton");
242 gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (de));
245 g_object_set (source, "model", fd.dict,
246 "selection-mode", GTK_SELECTION_SINGLE,
250 psppire_selector_set_filter_func (PSPPIRE_SELECTOR (selector),
251 is_currently_in_entry);
253 g_signal_connect (dialog, "refresh", G_CALLBACK (refresh), &fd);
255 g_signal_connect (find_button, "clicked", G_CALLBACK (do_find), &fd);
257 g_signal_connect (selector, "selected",
258 G_CALLBACK (on_select), &fd);
260 g_signal_connect (selector, "de-selected",
261 G_CALLBACK (on_deselect), &fd);
263 g_signal_connect (fd.value_labels_checkbox, "toggled",
264 G_CALLBACK (value_labels_toggled), &fd);
267 psppire_dialog_run (PSPPIRE_DIALOG (dialog));
269 g_object_unref (fd.xml);
276 forward (casenumber *i, struct datasheet *data UNUSED)
283 forward_wrap (casenumber *i, struct datasheet *data)
285 if ( ++*i >= datasheet_get_n_rows (data) ) *i = 0;
289 backward (casenumber *i, struct datasheet *data UNUSED)
296 backward_wrap (casenumber *i, struct datasheet *data)
299 *i = datasheet_get_n_rows (data) - 1;
303 /* Current plus one */
305 cp1 (casenumber current, struct datasheet *data)
310 /* Current plus one, circular */
312 cp1c (casenumber current, struct datasheet *data)
314 casenumber next = current;
316 forward_wrap (&next, data);
322 /* Current minus one */
324 cm1 (casenumber current, struct datasheet *data)
329 /* Current minus one, circular */
331 cm1c (casenumber current, struct datasheet *data)
333 casenumber next = current;
335 backward_wrap (&next, data);
342 last (casenumber current, struct datasheet *data)
344 return datasheet_get_n_rows (data) ;
348 minus1 (casenumber current, struct datasheet *data)
353 /* An type to facilitate iterating through casenumbers */
354 struct casenum_iterator
356 /* returns the first case to access */
357 casenumber (*start) (casenumber, struct datasheet *);
359 /* Returns one past the last case to access */
360 casenumber (*end) (casenumber, struct datasheet *);
362 /* Sets the first arg to the next case to access */
363 void (*next) (casenumber *, struct datasheet *);
374 static const struct casenum_iterator ip[n_iterators] =
376 {cp1, last, forward},
377 {cp1c, cm1, forward_wrap},
378 {cm1, minus1, backward},
379 {cm1c, cp1, backward_wrap}
384 /* A factory returning an iterator according to the dialog box's settings */
385 static const struct casenum_iterator *
386 get_iteration_params (const struct find_dialog *fd)
388 gboolean wrap = gtk_toggle_button_get_active
389 (GTK_TOGGLE_BUTTON (get_widget_assert (fd->xml, "find-wrap")));
391 gboolean reverse = gtk_toggle_button_get_active
392 (GTK_TOGGLE_BUTTON (get_widget_assert (fd->xml, "find-backwards")));
397 return &ip[REVERSE_WRAP];
399 return &ip[FORWARD_WRAP];
411 enum string_cmp_flags
413 STR_CMP_SUBSTR = 0x01, /* Find strings which are substrings of the
415 STR_CMP_REGEXP = 0x02, /* Match against a regular expression */
417 STR_CMP_LABELS = 0x04 /* Match against the values' labels instead
422 /* An abstract base type for comparing union values against a reference */
425 const struct variable *var;
426 enum string_cmp_flags flags;
428 bool (*compare) (const struct comparator *,
429 const union value *);
431 void (*destroy) (struct comparator *);
435 /* A comparator which operates on the unadulterated union values */
436 struct value_comparator
438 struct comparator parent;
442 /* A comparator which matches string values or parts thereof */
443 struct string_comparator
445 struct comparator parent;
449 /* A comparator to match string values against a POSIX.2 regular expression */
450 struct regexp_comparator
452 struct comparator parent;
458 value_compare (const struct comparator *cmptr,
459 const union value *v)
461 const struct value_comparator *vc = (const struct value_comparator *) cmptr;
462 return 0 == value_compare_3way (v, &vc->pattern, var_get_width (cmptr->var));
466 /* Return true if the label of VAL matches the reference string*/
468 string_label_compare (const struct comparator *cmptr,
469 const union value *val)
471 const struct string_comparator *ssc =
472 (const struct string_comparator *) cmptr;
476 const char *text = var_lookup_value_label (cmptr->var, val);
480 width = strlen (text);
482 assert ( cmptr->flags & STR_CMP_LABELS);
484 g_return_val_if_fail (width > 0, false);
486 if ( cmptr->flags & STR_CMP_SUBSTR)
487 return (NULL != g_strstr_len (text, width, ssc->pattern));
489 return (0 == strncmp (text, ssc->pattern, width));
492 /* Return true if VAL matches the reference string*/
494 string_value_compare (const struct comparator *cmptr,
495 const union value *val)
499 const struct string_comparator *ssc =
500 (const struct string_comparator *) cmptr;
502 int width = var_get_width (cmptr->var);
503 g_return_val_if_fail (width > 0, false);
504 assert ( ! (cmptr->flags & STR_CMP_LABELS));
506 text = value_to_text (*val, cmptr->var);
508 if ( cmptr->flags & STR_CMP_SUBSTR)
509 found = (NULL != g_strstr_len (text, width, ssc->pattern));
511 found = (0 == strncmp (text, ssc->pattern, width));
519 /* Return true if VAL matched the regexp */
521 regexp_value_compare (const struct comparator *cmptr,
522 const union value *val)
526 const struct regexp_comparator *rec =
527 (const struct regexp_comparator *) cmptr;
529 int width = var_get_width (cmptr->var);
531 assert ( ! (cmptr->flags & STR_CMP_LABELS) );
533 g_return_val_if_fail (width > 0, false);
535 text = value_to_text (*val, cmptr->var);
536 /* We must remove trailing whitespace, otherwise $ will not match where
540 retval = (0 == regexec (&rec->re, text, 0, 0, 0));
547 /* Return true if the label of VAL matched the regexp */
549 regexp_label_compare (const struct comparator *cmptr,
550 const union value *val)
553 const struct regexp_comparator *rec =
554 (const struct regexp_comparator *) cmptr;
558 assert ( cmptr->flags & STR_CMP_LABELS);
560 text = var_lookup_value_label (cmptr->var, val);
561 width = strlen (text);
563 g_return_val_if_fail (width > 0, false);
565 return (0 == regexec (&rec->re, text, 0, 0, 0));
571 regexp_destroy (struct comparator *cmptr)
573 struct regexp_comparator *rec
574 = UP_CAST (cmptr, struct regexp_comparator, parent);
580 cmptr_value_destroy (struct comparator *cmptr)
582 struct value_comparator *vc
583 = UP_CAST (cmptr, struct value_comparator, parent);
584 value_destroy (&vc->pattern, var_get_width (cmptr->var));
588 static struct comparator *
589 value_comparator_create (const struct variable *var, const char *target)
591 struct value_comparator *vc = xzalloc (sizeof (*vc));
592 struct comparator *cmptr = &vc->parent;
596 cmptr->compare = value_compare ;
597 cmptr->destroy = cmptr_value_destroy;
599 text_to_value (target, var, &vc->pattern);
604 static struct comparator *
605 string_comparator_create (const struct variable *var, const char *target,
606 enum string_cmp_flags flags)
608 struct string_comparator *ssc = xzalloc (sizeof (*ssc));
609 struct comparator *cmptr = &ssc->parent;
611 cmptr->flags = flags;
614 if ( flags & STR_CMP_LABELS)
615 cmptr->compare = string_label_compare;
617 cmptr->compare = string_value_compare;
619 ssc->pattern = target;
625 static struct comparator *
626 regexp_comparator_create (const struct variable *var, const char *target,
627 enum string_cmp_flags flags)
630 struct regexp_comparator *rec = xzalloc (sizeof (*rec));
631 struct comparator *cmptr = &rec->parent;
633 cmptr->flags = flags;
635 cmptr->compare = (flags & STR_CMP_LABELS)
636 ? regexp_label_compare : regexp_value_compare ;
638 cmptr->destroy = regexp_destroy;
640 code = regcomp (&rec->re, target, 0);
644 size_t errbuf_size = regerror (code, &rec->re, errbuf, 0);
646 errbuf = xmalloc (errbuf_size);
648 regerror (code, &rec->re, errbuf, errbuf_size);
650 msg (ME, _("Bad regular expression: %s"), errbuf);
661 /* Compare V against CMPTR's reference */
663 comparator_compare (const struct comparator *cmptr,
664 const union value *v)
666 return cmptr->compare (cmptr, v);
671 comparator_destroy (struct comparator *cmptr)
676 if ( cmptr->destroy )
677 cmptr->destroy (cmptr);
683 static struct comparator *
684 comparator_factory (const struct variable *var, const char *str,
685 enum string_cmp_flags flags)
687 if ( flags & STR_CMP_REGEXP )
688 return regexp_comparator_create (var, str, flags);
690 if ( flags & (STR_CMP_SUBSTR | STR_CMP_LABELS) )
691 return string_comparator_create (var, str, flags);
693 return value_comparator_create (var, str);
697 /* Find the row and column specified by the dialog FD, starting at CURRENT_ROW.
698 After the function returns, *ROW contains the row and *COLUMN the column.
699 If no such case is found, then *ROW will be set to -1
702 find_value (const struct find_dialog *fd, casenumber current_row,
703 casenumber *row, int *column)
706 const struct variable *var;
707 const char *var_name = gtk_entry_get_text (GTK_ENTRY (fd->variable_entry));
708 const char *target_string = gtk_entry_get_text (GTK_ENTRY (fd->value_entry));
710 enum string_cmp_flags flags = 0;
711 g_assert (current_row >= 0);
713 var = dict_lookup_var (fd->dict->dict, var_name);
717 width = var_get_width (var);
719 *column = var_get_dict_index (var);
722 if ( gtk_toggle_button_get_active
723 (GTK_TOGGLE_BUTTON (fd->match_substring_checkbox)))
724 flags |= STR_CMP_SUBSTR;
726 if ( gtk_toggle_button_get_active
727 (GTK_TOGGLE_BUTTON (fd->match_regexp_checkbox)))
728 flags |= STR_CMP_REGEXP;
730 if ( gtk_toggle_button_get_active
731 (GTK_TOGGLE_BUTTON (fd->value_labels_checkbox)))
732 flags |= STR_CMP_LABELS;
737 const struct casenum_iterator *ip = get_iteration_params (fd);
738 struct comparator *cmptr =
739 comparator_factory (var, target_string, flags);
741 value_init (&val, width);
745 for (i = ip->start (current_row, fd->data);
746 i != ip->end (current_row, fd->data);
747 ip->next (&i, fd->data))
749 datasheet_get_value (fd->data, i, var_get_case_index (var), &val);
751 if ( comparator_compare (cmptr, &val))
759 comparator_destroy (cmptr);
760 value_destroy (&val, width);