altoslib: Add map loading helper class

This adds the AltosMapLoader class, which iterates over a sequence of
zoom levels and formats to get local copies of a desired launch site.

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

1 files changed, 26 insertions, 0 deletions

diff --git a/altoslib/AltosMapLoaderListener.java b/altoslib/AltosMapLoaderListener.java
new file mode 100644
index 00000000..79f8b9df
--- /dev/null
+++ b/altoslib/AltosMapLoaderListener.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright © 2015 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package org.altusmetrum.altoslib_7;
+
+public interface AltosMapLoaderListener {
+	public abstract void loader_start(int max);
+
+	public abstract void loader_notify(int cur, int max, String name);
+
+	public abstract void loader_done(int max);
+}