altosuilib: Add google maps API key, configured with -with-google-key

This places the actual key outside of the repository, allowing the
user to configure the name of the file containing the key. By default,
this pulls the key from $HOME/altusmetrumllc/google-maps-api-key.

With the key present, there are no longer any rate limits to loading
map data.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/altosuilib/AltosUIVersion.java.in b/altosuilib/AltosUIVersion.java.in
index 3f629560..0edb5c04 100644
--- a/altosuilib/AltosUIVersion.java.in
+++ b/altosuilib/AltosUIVersion.java.in
@@ -19,4 +19,10 @@ package org.altusmetrum.altosuilib_2;
 
 public class AltosUIVersion {
 	public final static String version = "@VERSION@";
+
+	public final static String google_maps_api_key = @GOOGLEKEY@;
+
+	static boolean has_google_maps_api_key() {
+		return google_maps_api_key != null && google_maps_api_key.length() > 1;
+	}
 }