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/casereader.h"
33 #include "data/gnumeric-reader.h"
34 #include "data/ods-reader.h"
35 #include "data/spreadsheet-reader.h"
36 #include "data/value-labels.h"
37 #include "language/data-io/data-parser.h"
38 #include "language/lexer/lexer.h"
39 #include "libpspp/assertion.h"
40 #include "libpspp/i18n.h"
41 #include "libpspp/line-reader.h"
42 #include "libpspp/message.h"
43 #include "ui/gui/checkbox-treeview.h"
44 #include "ui/gui/dialog-common.h"
45 #include "ui/gui/executor.h"
46 #include "ui/gui/helper.h"
47 #include "ui/gui/builder-wrapper.h"
48 #include "ui/gui/psppire-data-window.h"
49 #include "ui/gui/psppire-dialog.h"
50 #include "ui/gui/psppire-encoding-selector.h"
51 #include "ui/gui/psppire-empty-list-store.h"
52 #include "ui/gui/psppire-var-sheet.h"
53 #include "ui/gui/psppire-var-store.h"
54 #include "ui/gui/psppire-scanf.h"
55 #include "ui/syntax-gen.h"
58 #include "gl/intprops.h"
59 #include "gl/xalloc.h"
62 #define _(msgid) gettext (msgid)
63 #define N_(msgid) msgid
65 struct import_assistant;
68 static char *choose_file (GtkWindow *parent_window, gchar **encodingp);
73 /* Obtains the file to import from the user and initializes IA's
74 file substructure. PARENT_WINDOW must be the window to use
75 as the file chooser window's parent.
77 Returns true if successful, false if the file name could not
78 be obtained or the file could not be read. */
80 init_file (struct import_assistant *ia, GtkWindow *parent_window)
82 enum { MAX_LINE_LEN = 16384 }; /* Max length of an acceptable line. */
83 struct file *file = &ia->file;
84 struct sheet_spec_page *ssp = ia->sheet_spec;
85 struct spreadsheet_read_info sri;
86 struct spreadsheet_read_options opts;
89 file->file_name = choose_file (parent_window, &file->encoding);
90 if (file->file_name == NULL)
93 opts.sheet_name = NULL;
94 opts.cell_range = NULL;
97 sri.read_names = true;
100 if (ia->spreadsheet == NULL)
101 ia->spreadsheet = gnumeric_probe (file->file_name);
103 if (ia->spreadsheet == NULL)
104 ia->spreadsheet = ods_probe (file->file_name);
106 if (! ia->spreadsheet)
109 struct line_reader *reader = line_reader_for_file (file->encoding, file->file_name, O_RDONLY);
112 msg (ME, _("Could not open `%s': %s"),
113 file->file_name, strerror (errno));
117 ds_init_empty (&input);
118 file->lines = xnmalloc (MAX_PREVIEW_LINES, sizeof *file->lines);
119 for (; file->line_cnt < MAX_PREVIEW_LINES; file->line_cnt++)
122 if (!line_reader_read (reader, &input, MAX_LINE_LEN + 1)
123 || ds_length (&input) > MAX_LINE_LEN)
125 if (line_reader_eof (reader))
127 else if (line_reader_error (reader))
128 msg (ME, _("Error reading `%s': %s"),
129 file->file_name, strerror (line_reader_error (reader)));
131 msg (ME, _("Failed to read `%s', because it contains a line "
132 "over %d bytes long and therefore appears not to be "
134 file->file_name, MAX_LINE_LEN);
135 line_reader_close (reader);
141 ds_init_cstr (&file->lines[file->line_cnt],
142 recode_string ("UTF-8", line_reader_get_encoding (reader),
143 ds_cstr (&input), ds_length (&input)));
147 if (file->line_cnt == 0)
149 msg (ME, _("`%s' is empty."), file->file_name);
150 line_reader_close (reader);
155 /* Estimate the number of lines in the file. */
156 if (file->line_cnt < MAX_PREVIEW_LINES)
157 file->total_lines = file->line_cnt;
161 off_t position = line_reader_tell (reader);
162 if (fstat (line_reader_fileno (reader), &s) == 0 && position > 0)
163 file->total_lines = (double) file->line_cnt / position * s.st_size;
165 file->total_lines = 0;
168 line_reader_close (reader);
174 /* Frees IA's file substructure. */
176 destroy_file (struct import_assistant *ia)
178 struct file *f = &ia->file;
183 for (i = 0; i < f->line_cnt; i++)
184 ds_destroy (&f->lines[i]);
188 g_free (f->file_name);
189 g_free (f->encoding);
192 /* Obtains the file to read from the user. If successful, returns the name of
193 the file and stores the user's chosen encoding for the file into *ENCODINGP.
194 The caller must free each of these strings with g_free().
196 On failure, stores a null pointer and stores NULL in *ENCODINGP.
198 PARENT_WINDOW must be the window to use as the file chooser window's
201 choose_file (GtkWindow *parent_window, gchar **encodingp)
204 GtkFileFilter *filter = NULL;
206 GtkWidget *dialog = gtk_file_chooser_dialog_new (_("Import Delimited Text Data"),
208 GTK_FILE_CHOOSER_ACTION_OPEN,
209 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
210 GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
213 g_object_set (dialog, "local-only", FALSE, NULL);
215 filter = gtk_file_filter_new ();
216 gtk_file_filter_set_name (filter, _("Text files"));
217 gtk_file_filter_add_mime_type (filter, "text/*");
218 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
220 filter = gtk_file_filter_new ();
221 gtk_file_filter_set_name (filter, _("Text (*.txt) Files"));
222 gtk_file_filter_add_pattern (filter, "*.txt");
223 gtk_file_filter_add_pattern (filter, "*.TXT");
224 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
226 filter = gtk_file_filter_new ();
227 gtk_file_filter_set_name (filter, _("Plain Text (ASCII) Files"));
228 gtk_file_filter_add_mime_type (filter, "text/plain");
229 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
231 filter = gtk_file_filter_new ();
232 gtk_file_filter_set_name (filter, _("Comma Separated Value Files"));
233 gtk_file_filter_add_mime_type (filter, "text/csv");
234 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
236 /* I've never encountered one of these, but it's listed here:
237 http://www.iana.org/assignments/media-types/text/tab-separated-values */
238 filter = gtk_file_filter_new ();
239 gtk_file_filter_set_name (filter, _("Tab Separated Value Files"));
240 gtk_file_filter_add_mime_type (filter, "text/tab-separated-values");
241 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
243 filter = gtk_file_filter_new ();
244 gtk_file_filter_set_name (filter, _("Gnumeric Spreadsheet Files"));
245 gtk_file_filter_add_mime_type (filter, "application/x-gnumeric");
246 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
248 filter = gtk_file_filter_new ();
249 gtk_file_filter_set_name (filter, _("OpenOffice.Org Spreadsheet Files"));
250 gtk_file_filter_add_mime_type (filter, "application/vnd.oasis.opendocument.spreadsheet");
251 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
253 filter = gtk_file_filter_new ();
254 gtk_file_filter_set_name (filter, _("All Spreadsheet Files"));
255 gtk_file_filter_add_mime_type (filter, "application/x-gnumeric");
256 gtk_file_filter_add_mime_type (filter, "application/vnd.oasis.opendocument.spreadsheet");
257 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
260 gtk_file_chooser_set_extra_widget (
261 GTK_FILE_CHOOSER (dialog), psppire_encoding_selector_new ("Auto", true));
263 filter = gtk_file_filter_new ();
264 gtk_file_filter_set_name (filter, _("All Files"));
265 gtk_file_filter_add_pattern (filter, "*");
266 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
268 switch (gtk_dialog_run (GTK_DIALOG (dialog)))
270 case GTK_RESPONSE_ACCEPT:
271 file_name = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
272 *encodingp = psppire_encoding_selector_get_encoding (
273 gtk_file_chooser_get_extra_widget (GTK_FILE_CHOOSER (dialog)));
280 gtk_widget_destroy (dialog);