altoslib: Add initial time series functions

Provides the basis for offering a sequence of time/value datasets for
graphing instead of using AltosState.

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

1 files changed, 33 insertions, 0 deletions

diff --git a/altoslib/AltosTime.java b/altoslib/AltosTime.java
new file mode 100644
index 00000000..de094e83
--- /dev/null
+++ b/altoslib/AltosTime.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright © 2017 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ */
+
+package org.altusmetrum.altoslib_11;
+
+public class AltosTime extends AltosUnits {
+	public double value(double v, boolean imperial_units) { return v; }
+
+	public double inverse(double v, boolean imperial_unis) { return v; }
+
+	public String show_units(boolean imperial_units) { return "s"; }
+
+	public String say_units(boolean imperial_units) { return "seconds"; }
+
+	public int show_fraction(int width, boolean imperial_units) {
+		if (width < 5)
+			return 0;
+		return width - 5;
+	}
+
+	public int say_fraction(boolean imperial_units) { return 0; }
+}