Start "output unit management" support

This doesn't actually *do* anything yet, but it introduces the notion of
output units, and allows you to pick metric or imperial.

Of course, since the output doesn't currently care, the units you pick
are irrelevant.  But just wait..

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

1 files changed, 18 insertions, 0 deletions

diff --git a/main.c b/main.c
index 14c4f26fe..9ef4fa0b4 100644
--- a/main.c
+++ b/main.c
@@ -14,6 +14,8 @@ GtkWidget *error_label;
 int        error_count;
 struct DiveList   dive_list;
 
+struct units output_units;
+
 static int sortfn(const void *_a, const void *_b)
 {
 	const struct dive *a = *(void **)_a;
@@ -200,11 +202,23 @@ static void quit(GtkWidget *w, gpointer data)
 	gtk_main_quit();
 }
 
+static void imperial(GtkWidget *w, gpointer data)
+{
+	output_units = IMPERIAL_units;
+}
+
+static void metric(GtkWidget *w, gpointer data)
+{
+	output_units = SI_units;
+}
+
 static GtkActionEntry menu_items[] = {
 	{ "FileMenuAction", GTK_STOCK_FILE, "Log", NULL, NULL, NULL},
 	{ "OpenFile",       GTK_STOCK_OPEN, NULL,   "<control>O", NULL, G_CALLBACK(file_open) },
 	{ "SaveFile",       GTK_STOCK_SAVE, NULL,   "<control>S", NULL, G_CALLBACK(file_save) },
 	{ "Quit",           GTK_STOCK_QUIT, NULL,   "<control>Q", NULL, G_CALLBACK(quit) },
+	{ "Metric",         NULL, "Metric", NULL, NULL, G_CALLBACK(metric) },
+	{ "Imperial",       NULL, "Imperial", NULL, NULL, G_CALLBACK(imperial) },
 };
 static gint nmenu_items = sizeof (menu_items) / sizeof (menu_items[0]);
 
@@ -215,6 +229,9 @@ static const gchar* ui_string = " \
 				<menuitem name=\"Open\" action=\"OpenFile\" /> \
 				<menuitem name=\"Save\" action=\"SaveFile\" /> \
 				<separator name=\"Seperator\"/> \
+				<menuitem name=\"Metric\" action=\"Metric\" /> \
+				<menuitem name=\"Imperial\" action=\"Imperial\" /> \
+				<separator name=\"Seperator\"/> \
 				<menuitem name=\"Quit\" action=\"Quit\" /> \
 			</menu> \
 		</menubar> \
@@ -249,6 +266,7 @@ int main(int argc, char **argv)
 	GtkWidget *menubar;
 	GtkWidget *vbox;
 
+	output_units = SI_units;
 	parse_xml_init();
 
 	gtk_init(&argc, &argv);