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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.altoslib_7;
import java.io.*;
import java.lang.Math;
import java.util.*;
import java.util.concurrent.*;
public abstract class AltosMapLine implements AltosFontListener {
public AltosLatLon start, end;
static public int stroke_width = 6;
public abstract void font_size_changed(int font_size);
public abstract void paint(AltosMapTransform t);
private AltosLatLon lat_lon(AltosPointInt pt, AltosMapTransform t) {
return t.screen_lat_lon(pt);
}
public void dragged(AltosPointInt pt, AltosMapTransform t) {
end = lat_lon(pt, t);
}
public void pressed(AltosPointInt pt, AltosMapTransform t) {
start = lat_lon(pt, t);
end = null;
}
public String line_dist() {
String format;
AltosGreatCircle g = new AltosGreatCircle(start.lat, start.lon,
end.lat, end.lon);
double distance = g.distance;
if (AltosConvert.imperial_units) {
distance = AltosConvert.meters_to_feet(distance);
if (distance < 10000) {
format = "%4.0fft";
} else {
distance /= 5280;
if (distance < 10)
format = "%5.3fmi";
else if (distance < 100)
format = "%5.2fmi";
else if (distance < 1000)
format = "%5.1fmi";
else
format = "%5.0fmi";
}
} else {
if (distance < 10000) {
format = "%4.0fm";
} else {
distance /= 1000;
if (distance < 100)
format = "%5.2fkm";
else if (distance < 1000)
format = "%5.1fkm";
else
format = "%5.0fkm";
}
}
return String.format(format, distance);
}
}
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