altoslib: Add units converters for latitude and longitude

Makes display of these values consistent across all instances

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

5 files changed, 119 insertions, 0 deletions

diff --git a/altoslib/AltosConvert.java b/altoslib/AltosConvert.java
index 87b9eaf2..dc0fbb62 100644
--- a/altoslib/AltosConvert.java
+++ b/altoslib/AltosConvert.java
@@ -351,6 +351,10 @@ public class AltosConvert {
 
 	public static AltosVoltage voltage = new AltosVoltage();
 
+	public static AltosLatitude latitude = new AltosLatitude();
+
+	public static AltosLongitude longitude = new AltosLongitude();
+
 	public static String show_gs(String format, double a) {
 		a = meters_to_g(a);
 		format = format.concat(" g");
diff --git a/altoslib/AltosLatitude.java b/altoslib/AltosLatitude.java
new file mode 100644
index 00000000..6156d6dc
--- /dev/null
+++ b/altoslib/AltosLatitude.java
@@ -0,0 +1,23 @@
+/*
+ * 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_4;
+
+public class AltosLatitude extends AltosLocation {
+	public String pos() { return "N"; }
+	public String neg() { return "S"; }
+}
diff --git a/altoslib/AltosLocation.java b/altoslib/AltosLocation.java
new file mode 100644
index 00000000..725a02ba
--- /dev/null
+++ b/altoslib/AltosLocation.java
@@ -0,0 +1,66 @@
+/*
+ * 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_4;
+
+public abstract class AltosLocation extends AltosUnits {
+
+	public abstract String pos();
+	public abstract String neg();
+
+	public double value(double v, boolean imperial_units) {
+		return v;
+	}
+
+	public double inverse(double v, boolean imperial_units) {
+		return v;
+	}
+
+	public String show_units(boolean imperial_units) {
+		return "°";
+	}
+
+	public String say_units(boolean imperial_units) {
+		return "degrees";
+	}
+
+	public int show_fraction(int width, boolean imperial_units) {
+		return 2;
+	}
+
+	public String show(int width, double v, boolean imperial_units) {
+		String	h = pos();
+		if (v < 0) {
+			h = neg();
+			v = -v;
+		}
+		int deg = (int) Math.floor(v);
+		double min = (v - Math.floor(v)) * 60.0;
+		return String.format("%s %4d° %9.6f", h, deg, min);
+	}
+
+	public String say(double v, boolean imperial_units) {
+		String	h = pos();
+		if (v < 0) {
+			h = neg();
+			v = -v;
+		}
+		int deg = (int) Math.floor(v);
+		double min = (v - Math.floor(v)) * 60.0;
+		return String.format("%s %d degrees %d", h, deg, (int) Math.floor(min + 0.5));
+	}
+}
diff --git a/altoslib/AltosLongitude.java b/altoslib/AltosLongitude.java
new file mode 100644
index 00000000..29a5dcd4
--- /dev/null
+++ b/altoslib/AltosLongitude.java
@@ -0,0 +1,23 @@
+/*
+ * 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_4;
+
+public class AltosLongitude extends AltosLocation {
+	public String pos() { return "E"; }
+	public String neg() { return "W"; }
+}
diff --git a/altoslib/Makefile.am b/altoslib/Makefile.am
index bd47f89f..e81418bb 100644
--- a/altoslib/Makefile.am
+++ b/altoslib/Makefile.am
@@ -120,6 +120,9 @@ altoslib_JAVA = \
 	AltosTemperature.java \
 	AltosAccel.java \
 	AltosVoltage.java \
+	AltosLocation.java \
+	AltosLatitude.java \
+	AltosLongitude.java \
 	AltosPyro.java \
 	AltosWriter.java