1 /* PSPPIRE - a graphical user interface for PSPP.
2 Copyright (C) 2007, 2009, 2011, 2012, 2015 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 */
27 #include <sys/types.h>
29 #include "data/data-in.h"
30 #include "data/datasheet.h"
31 #include "data/format.h"
32 #include "data/value.h"
33 #include "libpspp/cast.h"
34 #include "libpspp/message.h"
35 #include "ui/gui/builder-wrapper.h"
36 #include "ui/gui/dict-display.h"
37 #include "ui/gui/find-dialog.h"
38 #include "ui/gui/helper.h"
39 #include "ui/gui/psppire-data-sheet.h"
40 #include "ui/gui/psppire-data-store.h"
41 #include "ui/gui/psppire-data-window.h"
42 #include "ui/gui/psppire-dialog.h"
43 #include "ui/gui/psppire-selector.h"
45 #include "gl/xalloc.h"
48 #define _(msgid) gettext (msgid)
49 #define N_(msgid) msgid
56 struct datasheet *data;
57 PsppireDataWindow *de;
58 GtkWidget *variable_entry;
59 GtkWidget *value_entry;
60 GtkWidget *value_labels_checkbox;
61 GtkWidget *match_regexp_checkbox;
62 GtkWidget *match_substring_checkbox;
66 find_value (const struct find_dialog *fd, casenumber current_row,
67 casenumber *row, int *column);
70 /* A callback which occurs whenever the "Refresh" button is clicked,
71 and when the dialog pops up.
72 It restores the dialog to its default state.
75 refresh (GObject *obj, const struct find_dialog *fd)
77 gtk_toggle_button_set_active
78 (GTK_TOGGLE_BUTTON (get_widget_assert (fd->xml, "find-wrap")),
81 gtk_toggle_button_set_active
82 (GTK_TOGGLE_BUTTON (get_widget_assert (fd->xml, "find-backwards")),
85 gtk_entry_set_text (GTK_ENTRY (fd->variable_entry), "");
86 gtk_entry_set_text (GTK_ENTRY (fd->value_entry), "");
88 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (fd->match_regexp_checkbox),
91 gtk_toggle_button_set_active
92 (GTK_TOGGLE_BUTTON (fd->match_substring_checkbox), FALSE);
95 gtk_toggle_button_set_active
96 (GTK_TOGGLE_BUTTON (fd->match_substring_checkbox), FALSE);
99 /* Callback on the "Find" button */
101 do_find (GObject *obj, const struct find_dialog *fd)
103 PsppireDataSheet *data_sheet;
108 data_sheet = psppire_data_editor_get_active_data_sheet (fd->de->data_editor);
109 row = psppire_data_sheet_get_selected_case (data_sheet);
111 find_value (fd, row, &x, &column);
115 gtk_notebook_set_current_page (GTK_NOTEBOOK (fd->de->data_editor),
116 PSPPIRE_DATA_EDITOR_DATA_VIEW);
118 psppire_data_sheet_goto_case (data_sheet, x);
119 psppire_data_sheet_goto_variable (data_sheet, column);
123 /* Callback on the selector.
124 It gets invoked whenever a variable is selected */
126 on_select (GtkEntry *entry, gpointer data)
128 struct find_dialog *fd = data;
129 const char *var_name = gtk_entry_get_text (GTK_ENTRY (fd->variable_entry));
130 struct variable *var = dict_lookup_var (fd->dict->dict, var_name);
131 gboolean search_labels ;
133 g_return_if_fail (var);
135 gtk_widget_set_sensitive (fd->value_labels_checkbox,
136 var_has_value_labels (var));
139 gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (fd->value_labels_checkbox));
141 gtk_widget_set_sensitive (fd->match_regexp_checkbox,
142 var_is_alpha (var) || search_labels);
145 gtk_widget_set_sensitive (fd->match_substring_checkbox,
146 var_is_alpha (var) || search_labels);
149 /* Callback on the selector.
150 It gets invoked whenever a variable is unselected */
152 on_deselect (GtkEntry *entry, gpointer data)
154 struct find_dialog *fd = data;
156 gtk_widget_set_sensitive (fd->value_labels_checkbox, FALSE);
157 gtk_widget_set_sensitive (fd->match_substring_checkbox, FALSE);
158 gtk_widget_set_sensitive (fd->match_regexp_checkbox, FALSE);
162 value_labels_toggled (GtkToggleButton *tb, gpointer data)
164 struct find_dialog *fd = data;
166 const char *var_name = gtk_entry_get_text (GTK_ENTRY (fd->variable_entry));
167 const struct variable *var = dict_lookup_var (fd->dict->dict, var_name);
169 gboolean active = gtk_toggle_button_get_active (tb) ;
171 gtk_widget_set_sensitive (fd->match_substring_checkbox,
172 active || (var && var_is_alpha (var)));
174 gtk_widget_set_sensitive (fd->match_regexp_checkbox,
175 active || (var && var_is_alpha (var)));
178 /* Pops up the Find dialog box
181 find_dialog (PsppireDataWindow *de)
183 struct find_dialog fd;
188 GtkWidget *find_button;
190 GtkWidget *buttonbox;
192 PsppireDataStore *ds ;
194 fd.xml = builder_new ("find.ui");
197 find_button = gtk_button_new_with_label (_("Find"));
198 gtk_widget_show (find_button);
200 buttonbox = get_widget_assert (fd.xml, "find-buttonbox");
202 psppire_box_pack_start_defaults (GTK_BOX (buttonbox), find_button);
203 gtk_box_reorder_child (GTK_BOX (buttonbox), find_button, 0);
205 dialog = get_widget_assert (fd.xml, "find-dialog");
206 source = get_widget_assert (fd.xml, "find-variable-treeview");
207 selector = get_widget_assert (fd.xml, "find-selector");
209 g_object_get (de->data_editor,
210 "dictionary", &fd.dict,
214 fd.data = ds->datasheet;
216 fd.variable_entry = get_widget_assert (fd.xml, "find-variable-entry");
217 fd.value_entry = get_widget_assert (fd.xml, "find-value-entry");
218 fd.value_labels_checkbox =
219 get_widget_assert (fd.xml,
220 "find-value-labels-checkbutton");
222 fd.match_regexp_checkbox =
223 get_widget_assert (fd.xml,
224 "find-match-regexp-checkbutton");
226 fd.match_substring_checkbox =
227 get_widget_assert (fd.xml,
228 "find-match-substring-checkbutton");
232 gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (de));
235 g_object_set (source, "model", fd.dict,
236 "selection-mode", GTK_SELECTION_SINGLE,
240 psppire_selector_set_filter_func (PSPPIRE_SELECTOR (selector),
241 is_currently_in_entry);
243 g_signal_connect (dialog, "refresh", G_CALLBACK (refresh), &fd);
245 g_signal_connect (find_button, "clicked", G_CALLBACK (do_find), &fd);
247 g_signal_connect (selector, "selected",
248 G_CALLBACK (on_select), &fd);
250 g_signal_connect (selector, "de-selected",
251 G_CALLBACK (on_deselect), &fd);
253 g_signal_connect (fd.value_labels_checkbox, "toggled",
254 G_CALLBACK (value_labels_toggled), &fd);
257 psppire_dialog_run (PSPPIRE_DIALOG (dialog));
259 g_object_unref (fd.xml);
266 forward (casenumber *i, struct datasheet *data UNUSED)
273 forward_wrap (casenumber *i, struct datasheet *data)
275 if ( ++*i >= datasheet_get_n_rows (data) ) *i = 0;
279 backward (casenumber *i, struct datasheet *data UNUSED)
286 backward_wrap (casenumber *i, struct datasheet *data)
289 *i = datasheet_get_n_rows (data) - 1;
293 /* Current plus one */
295 cp1 (casenumber current, struct datasheet *data)
300 /* Current plus one, circular */
302 cp1c (casenumber current, struct datasheet *data)
304 casenumber next = current;
306 forward_wrap (&next, data);
312 /* Current minus one */
314 cm1 (casenumber current, struct datasheet *data)
317 return datasheet_get_n_rows (data);
322 /* Current minus one, circular */
324 cm1c (casenumber current, struct datasheet *data)
326 casenumber next = current;
329 return datasheet_get_n_rows (data);
331 backward_wrap (&next, data);
338 last (casenumber current, struct datasheet *data)
340 return datasheet_get_n_rows (data) ;
344 minus1 (casenumber current, struct datasheet *data)
352 /* An type to facilitate iterating through casenumbers */
353 struct casenum_iterator
355 /* returns the first case to access */
356 casenumber (*start) (casenumber, struct datasheet *);
358 /* Returns one past the last case to access */
359 casenumber (*end) (casenumber, struct datasheet *);
361 /* Sets the first arg to the next case to access */
362 void (*next) (casenumber *, struct datasheet *);
373 static const struct casenum_iterator ip[n_iterators] =
375 {cp1, last, forward},
376 {cp1c, cm1, forward_wrap},
377 {cm1, minus1, backward},
378 {cm1c, cp1, backward_wrap}
383 /* A factory returning an iterator according to the dialog box's settings */
384 static const struct casenum_iterator *
385 get_iteration_params (const struct find_dialog *fd)
387 gboolean wrap = gtk_toggle_button_get_active
388 (GTK_TOGGLE_BUTTON (get_widget_assert (fd->xml, "find-wrap")));
390 gboolean reverse = gtk_toggle_button_get_active
391 (GTK_TOGGLE_BUTTON (get_widget_assert (fd->xml, "find-backwards")));
396 return &ip[REVERSE_WRAP];
398 return &ip[FORWARD_WRAP];
410 enum string_cmp_flags
412 STR_CMP_SUBSTR = 0x01, /* Find strings which are substrings of the
414 STR_CMP_REGEXP = 0x02, /* Match against a regular expression */
416 STR_CMP_LABELS = 0x04 /* Match against the values' labels instead
421 /* An abstract base type for comparing union values against a reference */
424 const struct variable *var;
425 enum string_cmp_flags flags;
427 bool (*compare) (const struct comparator *,
428 const union value *);
430 void (*destroy) (struct comparator *);
434 /* A comparator which operates on the unadulterated union values */
435 struct value_comparator
437 struct comparator parent;
441 /* A comparator which matches string values or parts thereof */
442 struct string_comparator
444 struct comparator parent;
448 /* A comparator to match string values against a POSIX.2 regular expression */
449 struct regexp_comparator
451 struct comparator parent;
457 value_compare (const struct comparator *cmptr,
458 const union value *v)
460 const struct value_comparator *vc = (const struct value_comparator *) cmptr;
461 return 0 == value_compare_3way (v, &vc->pattern, var_get_width (cmptr->var));
465 /* Return true if the label of VAL matches the reference string*/
467 string_label_compare (const struct comparator *cmptr,
468 const union value *val)
470 const struct string_comparator *ssc =
471 (const struct string_comparator *) cmptr;
475 const char *text = var_lookup_value_label (cmptr->var, val);
479 width = strlen (text);
481 assert ( cmptr->flags & STR_CMP_LABELS);
483 g_return_val_if_fail (width > 0, false);
485 if ( cmptr->flags & STR_CMP_SUBSTR)
486 return (NULL != g_strstr_len (text, width, ssc->pattern));
488 return (0 == strncmp (text, ssc->pattern, width));
491 /* Return true if VAL matches the reference string*/
493 string_value_compare (const struct comparator *cmptr,
494 const union value *val)
498 const struct string_comparator *ssc =
499 (const struct string_comparator *) cmptr;
501 int width = var_get_width (cmptr->var);
502 g_return_val_if_fail (width > 0, false);
503 assert ( ! (cmptr->flags & STR_CMP_LABELS));
505 text = value_to_text (*val, cmptr->var);
507 if ( cmptr->flags & STR_CMP_SUBSTR)
508 found = (NULL != g_strstr_len (text, width, ssc->pattern));
510 found = (0 == strncmp (text, ssc->pattern, width));
518 /* Return true if VAL matched the regexp */
520 regexp_value_compare (const struct comparator *cmptr,
521 const union value *val)
525 const struct regexp_comparator *rec =
526 (const struct regexp_comparator *) cmptr;
528 int width = var_get_width (cmptr->var);
530 assert ( ! (cmptr->flags & STR_CMP_LABELS) );
532 g_return_val_if_fail (width > 0, false);
534 text = value_to_text (*val, cmptr->var);
535 /* We must remove trailing whitespace, otherwise $ will not match where
539 retval = (0 == regexec (&rec->re, text, 0, 0, 0));
546 /* Return true if the label of VAL matched the regexp */
548 regexp_label_compare (const struct comparator *cmptr,
549 const union value *val)
552 const struct regexp_comparator *rec =
553 (const struct regexp_comparator *) cmptr;
557 assert ( cmptr->flags & STR_CMP_LABELS);
559 text = var_lookup_value_label (cmptr->var, val);
560 width = strlen (text);
562 g_return_val_if_fail (width > 0, false);
564 return (0 == regexec (&rec->re, text, 0, 0, 0));
570 regexp_destroy (struct comparator *cmptr)
572 struct regexp_comparator *rec
573 = UP_CAST (cmptr, struct regexp_comparator, parent);
579 cmptr_value_destroy (struct comparator *cmptr)
581 struct value_comparator *vc
582 = UP_CAST (cmptr, struct value_comparator, parent);
583 value_destroy (&vc->pattern, var_get_width (cmptr->var));
587 static struct comparator *
588 value_comparator_create (const struct variable *var, const char *target)
590 struct value_comparator *vc = xzalloc (sizeof (*vc));
591 struct comparator *cmptr = &vc->parent;
595 cmptr->compare = value_compare ;
596 cmptr->destroy = cmptr_value_destroy;
598 text_to_value (target, var, &vc->pattern);
603 static struct comparator *
604 string_comparator_create (const struct variable *var, const char *target,
605 enum string_cmp_flags flags)
607 struct string_comparator *ssc = xzalloc (sizeof (*ssc));
608 struct comparator *cmptr = &ssc->parent;
610 cmptr->flags = flags;
613 if ( flags & STR_CMP_LABELS)
614 cmptr->compare = string_label_compare;
616 cmptr->compare = string_value_compare;
618 ssc->pattern = target;
624 static struct comparator *
625 regexp_comparator_create (const struct variable *var, const char *target,
626 enum string_cmp_flags flags)
629 struct regexp_comparator *rec = xzalloc (sizeof (*rec));
630 struct comparator *cmptr = &rec->parent;
632 cmptr->flags = flags;
634 cmptr->compare = (flags & STR_CMP_LABELS)
635 ? regexp_label_compare : regexp_value_compare ;
637 cmptr->destroy = regexp_destroy;
639 code = regcomp (&rec->re, target, 0);
643 size_t errbuf_size = regerror (code, &rec->re, errbuf, 0);
645 errbuf = xmalloc (errbuf_size);
647 regerror (code, &rec->re, errbuf, errbuf_size);
649 msg (ME, _("Bad regular expression: %s"), errbuf);
660 /* Compare V against CMPTR's reference */
662 comparator_compare (const struct comparator *cmptr,
663 const union value *v)
665 return cmptr->compare (cmptr, v);
670 comparator_destroy (struct comparator *cmptr)
675 if ( cmptr->destroy )
676 cmptr->destroy (cmptr);
682 static struct comparator *
683 comparator_factory (const struct variable *var, const char *str,
684 enum string_cmp_flags flags)
686 if ( flags & STR_CMP_REGEXP )
687 return regexp_comparator_create (var, str, flags);
689 if ( flags & (STR_CMP_SUBSTR | STR_CMP_LABELS) )
690 return string_comparator_create (var, str, flags);
692 return value_comparator_create (var, str);
696 /* Find the row and column specified by the dialog FD, starting at CURRENT_ROW.
697 After the function returns, *ROW contains the row and *COLUMN the column.
698 If no such case is found, then *ROW will be set to -1
701 find_value (const struct find_dialog *fd, casenumber current_row,
702 casenumber *row, int *column)
705 const struct variable *var;
706 const char *var_name = gtk_entry_get_text (GTK_ENTRY (fd->variable_entry));
707 const char *target_string = gtk_entry_get_text (GTK_ENTRY (fd->value_entry));
709 enum string_cmp_flags flags = 0;
711 var = dict_lookup_var (fd->dict->dict, var_name);
715 width = var_get_width (var);
717 *column = var_get_dict_index (var);
720 if ( gtk_toggle_button_get_active
721 (GTK_TOGGLE_BUTTON (fd->match_substring_checkbox)))
722 flags |= STR_CMP_SUBSTR;
724 if ( gtk_toggle_button_get_active
725 (GTK_TOGGLE_BUTTON (fd->match_regexp_checkbox)))
726 flags |= STR_CMP_REGEXP;
728 if ( gtk_toggle_button_get_active
729 (GTK_TOGGLE_BUTTON (fd->value_labels_checkbox)))
730 flags |= STR_CMP_LABELS;
735 const struct casenum_iterator *ip = get_iteration_params (fd);
736 struct comparator *cmptr =
737 comparator_factory (var, target_string, flags);
739 value_init (&val, width);
743 for (i = ip->start (current_row, fd->data);
744 i != ip->end (current_row, fd->data);
745 ip->next (&i, fd->data))
747 datasheet_get_value (fd->data, i, var_get_case_index (var), &val);
749 if ( comparator_compare (cmptr, &val))
757 comparator_destroy (cmptr);
758 value_destroy (&val, width);