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>

3 files changed, 97 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; }
+}
diff --git a/altoslib/AltosTimeSeries.java b/altoslib/AltosTimeSeries.java
new file mode 100644
index 00000000..53c0076f
--- /dev/null
+++ b/altoslib/AltosTimeSeries.java
@@ -0,0 +1,37 @@
+/*
+ * 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;
+
+import java.util.*;
+
+public class AltosTimeSeries implements Iterable<AltosTimeValue> {
+	public String		label;
+	public AltosUnits	units;
+	List<AltosTimeValue>	values;
+
+	public void add(double x, double y) {
+		values.add(new AltosTimeValue(x, y));
+	}
+
+	public Iterator<AltosTimeValue> iterator() {
+		return values.iterator();
+	}
+
+	public AltosTimeSeries(String label, AltosUnits units) {
+		this.label = label;
+		this.units = units;
+		this.values = new ArrayList<AltosTimeValue>();
+	}
+}
diff --git a/altoslib/AltosTimeValue.java b/altoslib/AltosTimeValue.java
new file mode 100644
index 00000000..50212361
--- /dev/null
+++ b/altoslib/AltosTimeValue.java
@@ -0,0 +1,27 @@
+/*
+ * 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; 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_11;
+
+public class AltosTimeValue {
+	public double	x, y;
+
+	public AltosTimeValue(double x, double y) {
+		this.x = x;
+		this.y = y;
+	}
+}