altoslib/altosui: Get legacy telem working with new AltosState structure

Make AltosTelemetry work without AltosRecord

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

1 files changed, 94 insertions, 0 deletions

diff --git a/altoslib/AltosTelemetryFile.java b/altoslib/AltosTelemetryFile.java
new file mode 100644
index 00000000..9e992576
--- /dev/null
+++ b/altoslib/AltosTelemetryFile.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright © 2013 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_1;
+
+import java.io.*;
+import java.util.*;
+import java.text.*;
+
+class AltosTelemetryIterator implements Iterator<AltosState> {
+	AltosState			state;
+	Iterator<AltosTelemetry>	telems;
+	AltosTelemetry			next;
+	boolean				seen;
+
+	public boolean hasNext() {
+		return !seen || telems.hasNext();
+	}
+
+	public AltosState next() {
+		if (seen) {
+			AltosState	n = state.clone();
+			AltosTelemetry	t = telems.next();
+
+			t.update_state(n);
+			state = n;
+		}
+		seen = true;
+		return state;
+	}
+
+	public void remove () {
+	}
+
+	public AltosTelemetryIterator(AltosState start, Iterator<AltosTelemetry> telems) {
+		this.state = start;
+		this.telems = telems;
+		this.seen = false;
+	}
+}
+
+public class AltosTelemetryFile extends AltosStateIterable {
+
+	AltosTelemetryIterable	telems;
+	AltosState		start;
+
+	public void write_comments(PrintStream out) {
+	}
+
+	public void write(PrintStream out) {
+		
+	}
+
+	public AltosTelemetryFile(FileInputStream input) {
+		telems = new AltosTelemetryIterable(input);
+		start = new AltosState();
+
+		/* Find boost tick */
+		AltosState	state = start.clone();
+
+		for (AltosTelemetry telem : telems) {
+			telem.update_state(state);
+			if (state.state >= AltosLib.ao_flight_boost) {
+				start.set_boost_tick(state.tick);
+				break;
+			}
+		}
+	}
+
+	public Iterator<AltosState> iterator() {
+		AltosState			state = start.clone();
+		Iterator<AltosTelemetry>  	i = telems.iterator();
+
+		while (i.hasNext() && !state.valid()) {
+			AltosTelemetry	t = i.next();
+			t.update_state(state);
+		}
+		return new AltosTelemetryIterator(state, i);
+	}
+}
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