1 /* PSPPIRE - a graphical user interface for PSPP.
2 Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013 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/>. */
19 #include "ui/gui/text-data-import-dialog.h"
23 #include <gtk-contrib/psppire-sheet.h>
29 #include "data/data-in.h"
30 #include "data/data-out.h"
31 #include "data/format-guesser.h"
32 #include "data/value-labels.h"
33 #include "language/data-io/data-parser.h"
34 #include "language/lexer/lexer.h"
35 #include "libpspp/assertion.h"
36 #include "libpspp/i18n.h"
37 #include "libpspp/line-reader.h"
38 #include "libpspp/message.h"
39 #include "ui/gui/checkbox-treeview.h"
40 #include "ui/gui/dialog-common.h"
41 #include "ui/gui/executor.h"
42 #include "ui/gui/helper.h"
43 #include "ui/gui/builder-wrapper.h"
44 #include "ui/gui/psppire-data-window.h"
45 #include "ui/gui/psppire-dialog.h"
46 #include "ui/gui/psppire-encoding-selector.h"
47 #include "ui/gui/psppire-empty-list-store.h"
48 #include "ui/gui/psppire-var-sheet.h"
49 #include "ui/gui/psppire-var-store.h"
50 #include "ui/gui/psppire-scanf.h"
51 #include "ui/syntax-gen.h"
54 #include "gl/intprops.h"
55 #include "gl/xalloc.h"
58 #define _(msgid) gettext (msgid)
59 #define N_(msgid) msgid
61 /* Page where the user verifies and adjusts input formats. */
65 GtkTreeView *data_tree_view;
66 PsppireDict *psppire_dict;
67 struct variable **modified_vars;
68 size_t modified_var_cnt;
71 /* The "formats" page of the assistant. */
73 static void on_variable_change (PsppireDict *dict, int idx,
74 struct import_assistant *);
75 static void clear_modified_vars (struct import_assistant *);
77 /* Initializes IA's formats substructure. */
80 formats_page_create (struct import_assistant *ia)
82 GtkBuilder *builder = ia->asst.builder;
83 struct formats_page *p = xzalloc (sizeof *p);
85 p->page = add_page_to_assistant (ia, get_widget_assert (builder, "Formats"),
86 GTK_ASSISTANT_PAGE_CONFIRM);
88 p->data_tree_view = GTK_TREE_VIEW (get_widget_assert (builder, "data"));
89 p->modified_vars = NULL;
90 p->modified_var_cnt = 0;
95 /* Frees IA's formats substructure. */
97 destroy_formats_page (struct import_assistant *ia)
99 struct formats_page *p = ia->formats;
101 if (p->psppire_dict != NULL)
103 dict_destroy (p->psppire_dict->dict);
104 g_object_unref (p->psppire_dict);
106 clear_modified_vars (ia);
109 /* Called just before the formats page of the assistant is
112 prepare_formats_page (struct import_assistant *ia)
114 struct dictionary *dict;
115 PsppireDict *psppire_dict;
116 PsppireVarStore *var_store;
117 GtkBin *vars_scroller;
118 GtkWidget *old_var_sheet;
119 PsppireVarSheet *var_sheet;
120 struct formats_page *p = ia->formats;
121 struct fmt_guesser *fg;
122 unsigned long int number = 0;
125 push_watch_cursor (ia);
127 dict = dict_create (get_default_encoding ());
128 fg = fmt_guesser_create ();
129 for (column_idx = 0; column_idx < ia->column_cnt; column_idx++)
131 struct variable *modified_var =
132 (column_idx < p->modified_var_cnt ? p->modified_vars[column_idx] : NULL);
133 if (modified_var == NULL)
135 struct column *column = &ia->columns[column_idx];
136 struct variable *var;
137 struct fmt_spec format;
141 /* Choose variable name. */
142 name = dict_make_unique_var_name (dict, column->name, &number);
144 /* Choose variable format. */
145 fmt_guesser_clear (fg);
146 for (row = ia->skip_lines; row < ia->file.line_cnt; row++)
147 fmt_guesser_add (fg, column->contents[row]);
148 fmt_guesser_guess (fg, &format);
149 fmt_fix_input (&format);
151 /* Create variable. */
152 var = dict_create_var_assert (dict, name, fmt_var_width (&format));
153 var_set_both_formats (var, &format);
161 name = dict_make_unique_var_name (dict, var_get_name (modified_var),
163 dict_clone_var_as_assert (dict, modified_var, name);
167 fmt_guesser_destroy (fg);
169 psppire_dict = psppire_dict_new_from_dict (dict);
170 g_signal_connect (psppire_dict, "variable_changed",
171 G_CALLBACK (on_variable_change), ia);
173 ia->formats->psppire_dict = psppire_dict;
175 /* XXX: PsppireVarStore doesn't hold a reference to
176 psppire_dict for now, but it should. After it does, we
177 should g_object_ref the psppire_dict here, since we also
178 hold a reference via ia->formats->dict. */
179 var_store = psppire_var_store_new (psppire_dict);
180 g_object_set (var_store,
181 "format-type", PSPPIRE_VAR_STORE_INPUT_FORMATS,
183 var_sheet = PSPPIRE_VAR_SHEET (psppire_var_sheet_new ());
184 g_object_set (var_sheet,
186 "may-create-vars", FALSE,
189 vars_scroller = GTK_BIN (get_widget_assert (ia->asst.builder, "vars-scroller"));
190 old_var_sheet = gtk_bin_get_child (vars_scroller);
191 if (old_var_sheet != NULL)
192 gtk_widget_destroy (old_var_sheet);
193 gtk_container_add (GTK_CONTAINER (vars_scroller), GTK_WIDGET (var_sheet));
194 gtk_widget_show (GTK_WIDGET (var_sheet));
196 gtk_widget_destroy (GTK_WIDGET (ia->formats->data_tree_view));
197 ia->formats->data_tree_view = create_data_tree_view (
199 GTK_CONTAINER (get_widget_assert (ia->asst.builder, "data-scroller")),
202 pop_watch_cursor (ia);
205 /* Clears the set of user-modified variables from IA's formats
206 substructure. This discards user modifications to variable
207 formats, thereby causing formats to revert to their
210 clear_modified_vars (struct import_assistant *ia)
212 struct formats_page *p = ia->formats;
215 for (i = 0; i < p->modified_var_cnt; i++)
216 var_destroy (p->modified_vars[i]);
217 free (p->modified_vars);
218 p->modified_vars = NULL;
219 p->modified_var_cnt = 0;
222 /* Resets the formats page to its defaults, discarding user
225 reset_formats_page (struct import_assistant *ia)
227 clear_modified_vars (ia);
228 prepare_formats_page (ia);
233 /* Called when the user changes one of the variables in the
236 on_variable_change (PsppireDict *dict, int dict_idx,
237 struct import_assistant *ia)
239 struct formats_page *p = ia->formats;
240 GtkTreeView *tv = ia->formats->data_tree_view;
241 gint column_idx = dict_idx + 1;
243 push_watch_cursor (ia);
245 /* Remove previous column and replace with new column. */
246 gtk_tree_view_remove_column (tv, gtk_tree_view_get_column (tv, column_idx));
247 gtk_tree_view_insert_column (tv, make_data_column (ia, tv, false, dict_idx),
250 /* Save a copy of the modified variable in modified_vars, so
251 that its attributes will be preserved if we back up to the
252 previous page with the Prev button and then come back
254 if (dict_idx >= p->modified_var_cnt)
257 p->modified_vars = xnrealloc (p->modified_vars, dict_idx + 1,
258 sizeof *p->modified_vars);
259 for (i = 0; i <= dict_idx; i++)
260 p->modified_vars[i] = NULL;
261 p->modified_var_cnt = dict_idx + 1;
263 if (p->modified_vars[dict_idx])
264 var_destroy (p->modified_vars[dict_idx]);
265 p->modified_vars[dict_idx]
266 = var_clone (psppire_dict_get_variable (dict, dict_idx));
268 pop_watch_cursor (ia);