altosui: Add map preloading GUI

Provide a way to manually enter latitude and longitude, preview the
map area while downloading a 9x9 grid of map tiles to be used when
monitoring flights without network access.

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

1 files changed, 285 insertions, 0 deletions

diff --git a/altosui/AltosSiteMapPreload.java b/altosui/AltosSiteMapPreload.java
new file mode 100644
index 00000000..2d9468b9
--- /dev/null
+++ b/altosui/AltosSiteMapPreload.java
@@ -0,0 +1,285 @@
+/*
+ * Copyright © 2011 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 altosui;
+
+import java.awt.*;
+import java.awt.image.*;
+import java.awt.event.*;
+import javax.swing.*;
+import javax.swing.event.MouseInputAdapter;
+import javax.imageio.ImageIO;
+import javax.swing.table.*;
+import java.io.*;
+import java.util.*;
+import java.text.*;
+import java.util.prefs.*;
+import java.lang.Math;
+import java.awt.geom.Point2D;
+import java.awt.geom.Line2D;
+
+class AltosMapPos extends Box {
+	JLabel		label;
+	JComboBox	hemi;
+	JTextField	deg;
+	JLabel		deg_label;
+	JTextField	min;
+	JLabel		min_label;
+
+	public void set_value(double new_value) {
+		double	d, m;
+		int	h;
+
+		h = 0;
+		if (new_value < 0) {
+			h = 1;
+			new_value = -new_value;
+		}
+		d = Math.floor(new_value);
+		deg.setText(String.format("%3.0f", d));
+		m = (new_value - d) * 60.0;
+		min.setText(String.format("%7.4f", m));
+		hemi.setSelectedIndex(h);
+	}
+
+	public double get_value() throws NumberFormatException {
+		int	h = hemi.getSelectedIndex();
+		double d = Double.parseDouble(deg.getText());
+		double m = Double.parseDouble(min.getText());
+		double v = d + m/60.0;
+		if (h == 1)
+			v = -v;
+		return v;
+	}
+
+	public AltosMapPos(String label_value,
+			   String[] hemi_names,
+			   double default_value) {
+		super(BoxLayout.X_AXIS);
+		label = new JLabel(label_value);
+		hemi = new JComboBox(hemi_names);
+		hemi.setEditable(false);
+		deg = new JTextField("000");
+		deg_label = new JLabel("degrees");
+		min = new JTextField("00.0000");
+		min_label = new JLabel("minutes");
+		set_value(default_value);
+		add(label);
+		add(Box.createRigidArea(new Dimension(5, 0)));
+		add(hemi);
+		add(Box.createRigidArea(new Dimension(5, 0)));
+		add(deg);
+		add(Box.createRigidArea(new Dimension(5, 0)));
+		add(deg_label);
+		add(Box.createRigidArea(new Dimension(5, 0)));
+		add(min);
+		add(Box.createRigidArea(new Dimension(5, 0)));
+		add(min_label);
+	}
+}
+
+public class AltosSiteMapPreload extends JDialog implements ActionListener {
+	AltosUI		owner;
+	AltosSiteMap	map;
+
+	AltosMapPos	lat;
+	AltosMapPos	lon;
+
+	JProgressBar	pbar;
+
+	final static int	width = 9;
+	final static int	height = 9;
+	final static int	tiles = width * height;
+
+	JToggleButton	load_button;
+	boolean		loading;
+	JButton		close_button;
+
+	static final String[]	lat_hemi_names = { "N", "S" };
+	static final String[]	lon_hemi_names = { "E", "W" };
+
+	class updatePbar implements Runnable {
+		int		n;
+		String		s;
+
+		public updatePbar(int in_n, String in_s) {
+			n = in_n;
+			s = in_s;
+		}
+
+		public void run() {
+			pbar.setValue(n);
+			pbar.setString(s);
+			if (n == width * height) {
+				load_button.setSelected(false);
+				loading = false;
+			}
+		}
+	}
+
+	class bgLoad extends Thread {
+
+		AltosSiteMap	map;
+
+		public bgLoad(AltosSiteMap in_map) {
+			map = in_map;
+		}
+
+		public void run() {
+			for (int y = 0; y < height; y++) {
+				for (int x = 0; x < width; x++) {
+					map.prefetchMap(y - height/2, x - width/2);
+					SwingUtilities.invokeLater(new updatePbar(y * height + x + 1,
+										  map.pngfile.toString()));
+				}
+			}
+		}
+	}
+
+	public void actionPerformed(ActionEvent e) {
+		String	cmd = e.getActionCommand();
+
+		if (cmd.equals("close"))
+			setVisible(false);
+
+		if (cmd.equals("load")) {
+			if (!loading) {
+				loading = true;
+				final double	latitude = lat.get_value();
+				final double	longitude = lon.get_value();
+				map.show(latitude,longitude);
+				bgLoad thread = new bgLoad(map);
+				thread.start();
+			}
+		}
+	}
+
+	public AltosSiteMapPreload(AltosUI in_owner) {
+		owner = in_owner;
+
+		Container		pane = getContentPane();
+		GridBagConstraints	c = new GridBagConstraints();
+		Insets			i = new Insets(4,4,4,4);
+
+		pane.setLayout(new GridBagLayout());
+
+		map = new AltosSiteMap();
+
+		c.fill = GridBagConstraints.BOTH;
+		c.anchor = GridBagConstraints.CENTER;
+		c.insets = i;
+		c.weightx = 1;
+		c.weighty = 1;
+
+		c.gridx = 0;
+		c.gridy = 0;
+		c.gridwidth = 2;
+		c.anchor = GridBagConstraints.CENTER;
+
+		pane.add(map, c);
+
+		pbar = new JProgressBar();
+		pbar.setMinimum(0);
+		pbar.setMaximum(width * height);
+		pbar.setValue(0);
+		pbar.setString("");
+		pbar.setStringPainted(true);
+		
+		c.fill = GridBagConstraints.HORIZONTAL;
+		c.anchor = GridBagConstraints.CENTER;
+		c.insets = i;
+		c.weightx = 1;
+		c.weighty = 0;
+
+		c.gridx = 0;
+		c.gridy = 1;
+		c.gridwidth = 2;
+
+		pane.add(pbar, c);
+
+		lat = new AltosMapPos("Latitude:",
+				      lat_hemi_names,
+				      37.167833333);
+		c.fill = GridBagConstraints.NONE;
+		c.anchor = GridBagConstraints.CENTER;
+		c.insets = i;
+		c.weightx = 1;
+		c.weighty = 0;
+
+		c.gridx = 0;
+		c.gridy = 2;
+		c.gridwidth = 1;
+		c.anchor = GridBagConstraints.CENTER;
+
+		pane.add(lat, c);
+		
+		lon = new AltosMapPos("Longitude:",
+				      lon_hemi_names,
+				      -97.73975);
+
+		c.fill = GridBagConstraints.NONE;
+		c.anchor = GridBagConstraints.CENTER;
+		c.insets = i;
+		c.weightx = 1;
+		c.weighty = 0;
+
+		c.gridx = 1;
+		c.gridy = 2;
+		c.gridwidth = 1;
+		c.anchor = GridBagConstraints.CENTER;
+
+		pane.add(lon, c);
+
+		load_button = new JToggleButton("Load Map");
+		load_button.addActionListener(this);
+		load_button.setActionCommand("load");
+		
+		c.fill = GridBagConstraints.NONE;
+		c.anchor = GridBagConstraints.CENTER;
+		c.insets = i;
+		c.weightx = 1;
+		c.weighty = 0;
+
+		c.gridx = 0;
+		c.gridy = 3;
+		c.gridwidth = 1;
+		c.anchor = GridBagConstraints.CENTER;
+
+		pane.add(load_button, c);
+
+		close_button = new JButton("Close");
+		close_button.addActionListener(this);
+		close_button.setActionCommand("close");
+		
+		c.fill = GridBagConstraints.NONE;
+		c.anchor = GridBagConstraints.CENTER;
+		c.insets = i;
+		c.weightx = 1;
+		c.weighty = 0;
+
+		c.gridx = 1;
+		c.gridy = 3;
+		c.gridwidth = 1;
+		c.anchor = GridBagConstraints.CENTER;
+
+		pane.add(close_button, c);
+
+		pack();
+		setLocationRelativeTo(owner);
+		setVisible(true);
+	}
+}
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