package altosui;
import java.awt.*;
+import java.awt.event.*;
import javax.swing.*;
import org.altusmetrum.altoslib_4.*;
import org.altusmetrum.altosuilib_2.*;
-public class AltosDescent extends JComponent implements AltosFlightDisplay {
+public class AltosDescent extends JComponent implements AltosFlightDisplay, HierarchyListener {
GridBagLayout layout;
+ private AltosState last_state;
+ private AltosListenerState last_listener_state;
+
public abstract class DescentStatus implements AltosFontListener, AltosUnitsListener {
JLabel label;
JTextField value;
add(label);
value = new JTextField(Altos.text_width);
+ value.setEditable(false);
value.setFont(Altos.value_font);
value.setHorizontalAlignment(SwingConstants.RIGHT);
c.gridx = 4; c.gridy = y;
JTextField value;
AltosUnits units;
double v;
+ String last_value = "";
void reset() {
value.setText("");
void show(String v) {
show();
- value.setText(v);
+
+ if (!last_value.equals(v)) {
+ value.setText(v);
+ last_value = v;
+ }
}
void show(double v) {
add(label, c);
value = new JTextField(Altos.text_width);
+ value.setEditable(false);
value.setFont(Altos.value_font);
value.setHorizontalAlignment(SwingConstants.RIGHT);
c.gridx = x + 2; c.gridy = y;
add(label);
value1 = new JTextField(Altos.text_width);
+ value1.setEditable(false);
value1.setFont(Altos.value_font);
value1.setHorizontalAlignment(SwingConstants.RIGHT);
c.gridx = x + 2; c.gridy = y;
add(value1);
value2 = new JTextField(Altos.text_width);
+ value2.setEditable(false);
value2.setFont(Altos.value_font);
value2.setHorizontalAlignment(SwingConstants.RIGHT);
c.gridx = x + 4; c.gridy = y;
}
public void show(AltosState state, AltosListenerState listener_state) {
+ if (!isShowing()) {
+ last_state = state;
+ last_listener_state = listener_state;
+ return;
+ }
+
height.show(state, listener_state);
speed.show(state, listener_state);
if (state.gps != null && state.gps.connected) {
return "Descent";
}
+ public void hierarchyChanged(HierarchyEvent e) {
+ if (last_state != null && isShowing()) {
+ AltosState state = last_state;
+ AltosListenerState listener_state = last_listener_state;
+
+ last_state = null;
+ last_listener_state = null;
+ show(state, listener_state);
+ }
+ }
+
public AltosDescent() {
layout = new GridBagLayout();
apogee = new Apogee(layout, 5);
main = new Main(layout, 6);
+ addHierarchyListener(this);
}
}