1 /* PSPPIRE - a graphical user interface for PSPP.
2 Copyright (C) 2007, 2012 Free Software Foundation, Inc.
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 This widget is a GtkBox which looks roughly like:
21 +-----------------------------+
22 |+------------+ +----------+ |
32 |+------------+ +----------+ |
33 +-----------------------------+
40 #include "psppire-acr.h"
44 #define _(msgid) gettext (msgid)
45 #define N_(msgid) msgid
47 G_DEFINE_TYPE (PsppireAcr, psppire_acr, GTK_TYPE_BOX);
50 psppire_acr_dispose (GObject *obj)
52 PsppireAcr *acr = PSPPIRE_ACR (obj);
54 if (acr->dispose_has_run)
56 acr->dispose_has_run = TRUE;
58 psppire_acr_set_model (acr, NULL);
60 G_OBJECT_CLASS (psppire_acr_parent_class)->dispose (obj);
64 psppire_acr_class_init (PsppireAcrClass *class)
66 G_OBJECT_CLASS (class)->dispose = psppire_acr_dispose;
69 static gboolean row_is_selected (const PsppireAcr *acr);
73 value_from_entry (gint col, GValue *val, gpointer data)
75 GtkEntry *entry = data;
76 const gchar *text = gtk_entry_get_text (entry);
77 gdouble x = g_strtod (text, 0);
79 g_value_init (val, G_TYPE_DOUBLE);
80 g_value_set_double (val, x);
86 /* Returns true, if there's text in the entry */
88 entry_not_empty (gpointer data)
90 GtkEntry *entry = data;
92 const char *text = gtk_entry_get_text (entry);
94 return !g_str_equal (text, "");
99 clear_entry (gpointer data)
101 GtkEntry *entry = data;
102 gtk_entry_set_text (entry, "");
107 on_entry_change (GtkEntry *entry, PsppireAcr *acr)
109 gtk_widget_set_sensitive (acr->add_button, acr->enabled (entry));
111 gtk_widget_set_sensitive (acr->change_button, acr->enabled (entry)
112 && row_is_selected (acr));
116 psppire_acr_set_entry (PsppireAcr *acr, GtkEntry *entry)
118 acr->get_value = value_from_entry;
119 acr->get_value_data = entry;
120 acr->enabled = entry_not_empty;
121 acr->enabled_data = entry;
122 acr->update = clear_entry;
123 acr->update_data = entry;
125 g_signal_connect (entry, "changed", G_CALLBACK (on_entry_change), acr);
129 /* Callback for when the Add button is clicked.
130 It appends an item to the list. */
132 on_add_button_clicked (PsppireAcr *acr)
136 gtk_list_store_append (acr->list_store, &iter);
139 i < gtk_tree_model_get_n_columns (GTK_TREE_MODEL (acr->list_store));
143 if (! acr->get_value (i, &value, acr->get_value_data))
146 gtk_list_store_set_value (acr->list_store, &iter,
148 g_value_unset (&value);
151 if (acr->update) acr->update (acr->update_data);
155 /* Callback for when the Changed button is clicked.
156 It replaces the currently selected entry. */
158 on_change_button_clicked (PsppireAcr *acr)
161 GtkTreeModel *model = GTK_TREE_MODEL (acr->list_store);
164 gtk_tree_selection_get_selected_rows (acr->selection,
167 GtkTreePath *path = l->data;
171 gtk_tree_model_get_iter (model, &iter, path);
174 i < gtk_tree_model_get_n_columns (GTK_TREE_MODEL (acr->list_store));
178 if (! acr->get_value (i, &value, acr->get_value_data))
181 gtk_list_store_set_value (acr->list_store, &iter,
183 g_value_unset (&value);
186 g_list_foreach (l, GFUNC_COMPAT_CAST (gtk_tree_path_free), NULL);
189 if (acr->update) acr->update (acr->update_data);
193 /* Callback for when the remove button is clicked.
194 It deletes the currently selected entry. */
196 on_remove_button_clicked (PsppireAcr *acr)
198 GtkTreeModel *model = GTK_TREE_MODEL (acr->list_store);
201 gtk_tree_selection_get_selected_rows (acr->selection,
204 GtkTreePath *path = l->data;
208 gtk_tree_model_get_iter (model, &iter, path);
210 gtk_list_store_remove (acr->list_store, &iter);
212 g_list_foreach (l, GFUNC_COMPAT_CAST (gtk_tree_path_free), NULL);
216 /* Returns true if there is a row currently selected.
219 row_is_selected (const PsppireAcr *acr)
222 GtkTreeModel *model = GTK_TREE_MODEL (acr->list_store);
223 GList *l = gtk_tree_selection_get_selected_rows (acr->selection,
226 result = (l != NULL);
228 g_list_foreach (l, GFUNC_COMPAT_CAST (gtk_tree_path_free), NULL);
235 /* Callback which occurs when an item in the treeview
238 on_select (GtkTreeSelection *selection, gpointer data)
240 PsppireAcr *acr = data;
242 gtk_widget_set_sensitive (acr->remove_button, row_is_selected (acr));
244 gtk_widget_set_sensitive (acr->change_button,
245 row_is_selected (acr)
251 psppire_acr_set_enabled (PsppireAcr *acr, gboolean status)
254 gtk_widget_set_sensitive (acr->add_button, status);
256 gtk_widget_set_sensitive (acr->change_button, status
257 && row_is_selected (acr));
261 psppire_acr_init (PsppireAcr *acr)
263 GtkWidget *bb = gtk_button_box_new (GTK_ORIENTATION_VERTICAL);
265 GtkWidget *sw = gtk_scrolled_window_new (NULL, NULL);
267 acr->dispose_has_run = FALSE;
269 gtk_orientable_set_orientation (GTK_ORIENTABLE (acr), GTK_ORIENTATION_HORIZONTAL);
271 acr->tv = GTK_TREE_VIEW (gtk_tree_view_new ());
273 acr->add_button = gtk_button_new_with_label (_("Add"));
274 acr->change_button = gtk_button_new_with_label (_("Edit"));
275 acr->remove_button = gtk_button_new_with_label (_("Remove"));
277 acr->get_value = NULL;
278 acr->get_value_data = NULL;
282 gtk_widget_set_sensitive (acr->change_button, FALSE);
283 gtk_widget_set_sensitive (acr->remove_button, FALSE);
284 gtk_widget_set_sensitive (acr->add_button, FALSE);
286 psppire_box_pack_start_defaults (GTK_BOX (bb), acr->add_button);
287 psppire_box_pack_start_defaults (GTK_BOX (bb), acr->change_button);
288 psppire_box_pack_start_defaults (GTK_BOX (bb), acr->remove_button);
290 gtk_box_pack_start (GTK_BOX (acr), bb, FALSE, TRUE, 5);
293 "hscrollbar-policy", GTK_POLICY_NEVER,
294 "vscrollbar-policy", GTK_POLICY_AUTOMATIC,
295 "shadow-type", GTK_SHADOW_ETCHED_IN,
298 gtk_container_add (GTK_CONTAINER (sw), GTK_WIDGET (acr->tv));
300 gtk_box_pack_start (GTK_BOX (acr), sw, TRUE, TRUE, 5);
303 g_signal_connect_swapped (acr->add_button, "clicked",
304 G_CALLBACK (on_add_button_clicked), acr);
305 g_signal_connect_swapped (acr->change_button, "clicked",
306 G_CALLBACK (on_change_button_clicked), acr);
307 g_signal_connect_swapped (acr->remove_button, "clicked",
308 G_CALLBACK (on_remove_button_clicked), acr);
310 gtk_widget_show_all (bb);
313 g_object_set (acr->tv, "headers-visible", FALSE, NULL);
315 acr->list_store = NULL;
317 psppire_acr_set_model (acr, acr->list_store);
319 acr->selection = gtk_tree_view_get_selection (acr->tv);
321 g_signal_connect (acr->selection, "changed", G_CALLBACK (on_select), acr);
323 gtk_widget_set_sensitive (GTK_WIDGET (acr), FALSE);
325 gtk_widget_show_all (sw);
328 GtkCellRenderer *renderer = gtk_cell_renderer_text_new ();
329 GtkTreeViewColumn *column =
330 gtk_tree_view_column_new_with_attributes ("value",
335 gtk_tree_view_append_column (acr->tv, column);
342 psppire_acr_new (void)
344 return GTK_WIDGET (g_object_new (psppire_acr_get_type (), NULL));
349 /* Set the widget's treemodel to LISTSTORE. LISTSTORE ownership is not
352 psppire_acr_set_model (PsppireAcr *acr, GtkListStore *liststore)
355 g_object_unref (acr->list_store);
357 g_object_ref (liststore);
359 acr->list_store = liststore;
361 gtk_tree_view_set_model (GTK_TREE_VIEW (acr->tv),
362 GTK_TREE_MODEL (liststore));
364 gtk_widget_set_sensitive (GTK_WIDGET (acr), liststore != NULL);
369 psppire_acr_set_enable_func (PsppireAcr *acr, EnabledFunc func, gpointer p)
372 acr->enabled_data = p;
376 psppire_acr_set_get_value_func (PsppireAcr *acr,
377 GetValueFunc getvalue, gpointer data)
379 acr->get_value_data = data;
380 acr->get_value = getvalue;