altosuilib: Build some common classes for displaying values in flight window

[fw/altos] / altosuilib / AltosUIVoltageIndicator.java

diff --git a/altosuilib/AltosUIVoltageIndicator.java b/altosuilib/AltosUIVoltageIndicator.java
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+++ b/altosuilib/AltosUIVoltageIndicator.java
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+/*
+ * 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.altosuilib_2;
+
+import java.awt.*;
+import javax.swing.*;
+import org.altusmetrum.altoslib_4.*;
+
+public abstract class AltosUIVoltageIndicator extends AltosUIUnitsIndicator {
+
+       abstract public double voltage(AltosState state);
+       abstract public double good();
+
+       public double value(AltosState state, int i) {
+               return voltage(state);
+       }
+
+       public boolean good(double value) {
+               return value >= good();
+       }
+
+       double last_voltage = -1;
+
+       public AltosUIVoltageIndicator (Container container, int y, String name, int width) {
+               super(container, y, AltosConvert.voltage, name, 1, true, width);
+       }
+}