Implement Close menu option that allows closing the data file

This requires some helper routines that allow us to clear out all the
widgets.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/info.c b/info.c
index 3efb40cf8..34ddfa923 100644
--- a/info.c
+++ b/info.c
@@ -113,6 +113,17 @@ void show_dive_info(struct dive *dive)
 	const char *text;
 	char buffer[80];
 
+	if (!dive) {
+		gtk_window_set_title(GTK_WINDOW(main_window), "Subsurface");
+		SET_TEXT_VALUE(divemaster);
+		SET_TEXT_VALUE(buddy);
+		SET_TEXT_VALUE(location);
+		SET_TEXT_VALUE(suit);
+		gtk_entry_set_text(rating, star_strings[0]);
+		gtk_text_buffer_set_text(gtk_text_view_get_buffer(notes), "", -1);
+		return;
+	}
+
 	/* dive number and location (or lacking that, the date) go in the window title */
 	text = dive->location;
 	if (!text)