altoslib: Create display-independent map support code

This takes the swing-specific map code and creates a generic version.

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

1 files changed, 67 insertions, 0 deletions

diff --git a/altoslib/AltosMapPath.java b/altoslib/AltosMapPath.java
new file mode 100644
index 00000000..272a4316
--- /dev/null
+++ b/altoslib/AltosMapPath.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright © 2014 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_6;
+
+import java.io.*;
+import java.lang.Math;
+import java.util.*;
+import java.util.concurrent.*;
+
+class PathPoint {
+	AltosLatLon	lat_lon;
+	int		state;
+
+	public PathPoint(AltosLatLon lat_lon, int state) {
+		this.lat_lon = lat_lon;
+		this.state = state;
+	}
+
+	public boolean equals(PathPoint other) {
+		if (other == null)
+			return false;
+
+		return lat_lon.equals(other.lat_lon) && state == other.state;
+	}
+}
+
+public abstract class AltosMapPath {
+
+	LinkedList<PathPoint>	points = new LinkedList<PathPoint>();
+	PathPoint		last_point = null;
+
+	static public int stroke_width = 6;
+
+	public abstract void paint(AltosMapTransform t);
+
+	public AltosMapRectangle add(double lat, double lon, int state) {
+		PathPoint		point = new PathPoint(new AltosLatLon (lat, lon), state);
+		AltosMapRectangle	rect = null;
+
+		if (!point.equals(last_point)) {
+			if (last_point != null)
+				rect = new AltosMapRectangle(last_point.lat_lon, point.lat_lon);
+			points.add (point);
+			last_point = point;
+		}
+		return rect;
+	}
+
+	public void clear () {
+		points = new LinkedList<PathPoint>();
+	}
+}