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

[fw/altos] / altosuilib / AltosUIUnitsIndicator.java

diff --git a/altosuilib/AltosUIUnitsIndicator.java b/altosuilib/AltosUIUnitsIndicator.java
new file mode 100644 (file)
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+++ b/altosuilib/AltosUIUnitsIndicator.java
@@ -0,0 +1,79 @@
+/*
+ * 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 AltosUIUnitsIndicator extends AltosUIIndicator {
+
+       AltosUnits      units;
+
+       abstract public double value(AltosState state, int i);
+       public boolean good(double value) { return false; }
+
+       public double[] last_values;
+
+       public void show(double... v) {
+               for (int i = 0; i < values.length; i++) {
+                       if (v[i] != last_values[i]) {
+                               String  value_text;
+                               boolean good = false;
+
+                               if (v[i] == AltosLib.MISSING) {
+                                       value_text = "Missing";
+                               } else {
+                                       value_text = units.show(8, v[i]);
+                                       if (i == 0)
+                                               good = good(v[i]);
+                               }
+                               last_values[i] = v[i];
+                               if (i == 0 && lights != null)
+                                       set_lights(good);
+                               values[i].setText(value_text);
+                       }
+               }
+       }
+
+       public void units_changed(boolean imperial_units) {
+               show(last_values);
+       }
+
+       public void show (AltosState state, AltosListenerState listener_state) {
+
+               double[] v = new double[values.length];
+
+               for (int i = 0; i < values.length; i++) {
+                       if (state != null)
+                               v[i] = value(state, i);
+                       else
+                               v[i] = AltosLib.MISSING;
+               }
+               show(v);
+
+       }
+
+       public AltosUIUnitsIndicator (Container container, int y, AltosUnits units, String name, int number_values, boolean has_lights, int width) {
+               super(container, y, name, number_values, has_lights, width);
+               this.units = units;
+               last_values = new double[values.length];
+               for (int i = 0; i < last_values.length; i++)
+                       last_values[i] = AltosLib.MISSING - 1;
+       }
+}