Rough "Add new dive" infrastructure in the divelist

Do a right-click to get a menu with the "Add dive" entry.  Should do
delete too, but that's for later.

What's also apparently for later is to make this *useful*.  It's the
butt-ugliest time entry field ever, and there's no way to set depth for
the dive either.  So this is more of a RFC than anything truly useful.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

dive.h

@@ -343,6 +343,7 @@ extern void add_location(const char *string);
 extern void remember_event(const char *eventname);
 extern void evn_foreach(void (*callback)(const char *, int *, void *), void *data);
 
+extern int add_new_dive(struct dive *dive);
 extern int edit_dive_info(struct dive *dive);
 extern void dive_list_update_dives(void);
 extern void flush_divelist(struct dive *dive);

divelist.c

@@ -687,6 +687,49 @@ static void row_activated_cb(GtkTreeView *tree_view,
 	edit_dive_info(get_dive(index));
 }
 
+static void add_dive_cb(GtkWidget *menuitem, GtkTreeModel *model)
+{
+	struct dive *dive;
+
+	dive = alloc_dive();
+	if (add_new_dive(dive)) {
+		record_dive(dive);
+		report_dives(TRUE);
+		return;
+	}
+	free(dive);
+}
+
+static void popup_divelist_menu(GtkTreeView *tree_view, GtkTreeModel *model, int button)
+{
+	GtkWidget *menu, *menuitem;
+
+	menu = gtk_menu_new();
+	menuitem = gtk_menu_item_new_with_label("Add dive");
+	g_signal_connect(menuitem, "activate", G_CALLBACK(add_dive_cb), model);
+	gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem);
+	gtk_widget_show_all(menu);
+
+	gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL,
+		button, gtk_get_current_event_time());
+}
+
+static void popup_menu_cb(GtkTreeView *tree_view,
+			GtkTreeModel *model)
+{
+	popup_divelist_menu(tree_view, model, 0);
+}
+
+static gboolean button_press_cb(GtkWidget *treeview, GdkEventButton *event, GtkTreeModel *model)
+{
+	/* Right-click? Bring up the menu */
+	if (event->type == GDK_BUTTON_PRESS  &&  event->button == 3) {
+		popup_divelist_menu(GTK_TREE_VIEW(treeview), model, 3);
+		return TRUE;
+	}
+	return FALSE;
+}
+
 GtkWidget *dive_list_create(void)
 {
 	GtkTreeSelection  *selection;
@@ -734,6 +777,8 @@ GtkWidget *dive_list_create(void)
 
 	g_signal_connect_after(dive_list.tree_view, "realize", G_CALLBACK(realize_cb), NULL);
 	g_signal_connect(dive_list.tree_view, "row-activated", G_CALLBACK(row_activated_cb), dive_list.model);
+	g_signal_connect(dive_list.tree_view, "button-press-event", G_CALLBACK(button_press_cb), dive_list.model);
+	g_signal_connect(dive_list.tree_view, "popup-menu", G_CALLBACK(popup_menu_cb), dive_list.model);
 	g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), dive_list.model);
 
 	dive_list.container_widget = gtk_scrolled_window_new(NULL, NULL);

info.c

@@ -420,6 +420,90 @@ int edit_dive_info(struct dive *dive)
 	return success;
 }
 
+/* Fixme - should do at least depths too - a dive without a depth is kind of pointless */
+static time_t dive_time_widget(struct dive *dive)
+{
+	GtkWidget *dialog;
+	GtkWidget *cal, *hbox, *vbox;
+	GtkWidget *h, *m;
+	GtkWidget *duration;
+	GtkWidget *label;
+	guint yval, mval, dval;
+	struct tm tm;
+	int success;
+
+	dialog = gtk_dialog_new_with_buttons("Date and Time",
+		GTK_WINDOW(main_window),
+		GTK_DIALOG_DESTROY_WITH_PARENT,
+		GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
+		GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
+		NULL);
+
+	vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
+
+	/* Calendar hbox */
+	hbox = gtk_hbox_new(0, 3);
+	gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
+
+	cal = gtk_calendar_new();
+	gtk_box_pack_start(GTK_BOX(hbox), cal, FALSE, TRUE, 0);
+
+	/* Time/duration hbox */
+	hbox = gtk_hbox_new(0, 3);
+	gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
+
+	h = gtk_spin_button_new_with_range (0.0, 23.0, 1.0);
+	m = gtk_spin_button_new_with_range (0.0, 59.0, 1.0);
+
+	gtk_spin_button_set_wrap(GTK_SPIN_BUTTON(h), TRUE);
+	gtk_spin_button_set_wrap(GTK_SPIN_BUTTON(m), TRUE);
+
+	duration = gtk_spin_button_new_with_range (0.0, 1000.0, 1.0);
+
+	gtk_box_pack_start(GTK_BOX(hbox), h, FALSE, FALSE, 0);
+	label = gtk_label_new(":");
+	gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
+	gtk_box_pack_start(GTK_BOX(hbox), m, FALSE, FALSE, 0);
+
+	label = gtk_label_new("   Duration:");
+	gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
+	gtk_box_pack_start(GTK_BOX(hbox), duration, FALSE, FALSE, 0);
+
+	gtk_widget_show_all(dialog);
+	success = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT;
+	if (!success) {
+		gtk_widget_destroy(dialog);
+		return 0;
+	}
+
+	memset(&tm, 0, sizeof(tm));
+	gtk_calendar_get_date(GTK_CALENDAR(cal), &yval, &mval, &dval);
+	tm.tm_year = yval;
+	tm.tm_mon = mval;
+	tm.tm_mday = dval;
+
+	tm.tm_hour = gtk_spin_button_get_value(GTK_SPIN_BUTTON(h));
+	tm.tm_min = gtk_spin_button_get_value(GTK_SPIN_BUTTON(m));
+
+	dive->duration.seconds = gtk_spin_button_get_value(GTK_SPIN_BUTTON(duration))*60;
+
+	gtk_widget_destroy(dialog);
+	dive->when = utc_mktime(&tm);
+
+	return 1;
+}
+
+int add_new_dive(struct dive *dive)
+{
+	if (!dive)
+		return 0;
+
+	if (!dive_time_widget(dive))
+		return 0;
+
+	return edit_dive_info(dive);
+}
+
 GtkWidget *extended_dive_info_widget(void)
 {
 	GtkWidget *vbox, *hbox;