altosui/altosuilib/altoslib: Move more stuff out of autosui. Reduce site map memory

Prepare to share with TeleGPS application.

This also has the changes to the site map tile which cache only a few
images and regenerate the flight path on the fly, saving piles of memory

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

1 files changed, 467 insertions, 0 deletions

diff --git a/altosuilib/AltosSiteMapPreload.java b/altosuilib/AltosSiteMapPreload.java
new file mode 100644
index 00000000..baa7fc37
--- /dev/null
+++ b/altosuilib/AltosSiteMapPreload.java
@@ -0,0 +1,467 @@
+/*
+ * 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 org.altusmetrum.altosuilib_2;
+
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+import java.io.*;
+import java.util.*;
+import java.text.*;
+import java.lang.Math;
+import java.net.URL;
+import java.net.URLConnection;
+import org.altusmetrum.altoslib_4.*;
+
+class AltosMapPos extends Box {
+	AltosUIFrame	owner;
+	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();
+		String	d_t = deg.getText();
+		String	m_t = min.getText();
+		double 	d, m, v;
+		try {
+			d = Double.parseDouble(d_t);
+		} catch (NumberFormatException ne) {
+			JOptionPane.showMessageDialog(owner,
+						      String.format("Invalid degrees \"%s\"",
+								    d_t),
+						      "Invalid number",
+						      JOptionPane.ERROR_MESSAGE);
+			throw ne;
+		}
+		try {
+			if (m_t.equals(""))
+				m = 0;
+			else
+				m = Double.parseDouble(m_t);
+		} catch (NumberFormatException ne) {
+			JOptionPane.showMessageDialog(owner,
+						      String.format("Invalid minutes \"%s\"",
+								    m_t),
+						      "Invalid number",
+						      JOptionPane.ERROR_MESSAGE);
+			throw ne;
+		}
+		v = d + m/60.0;
+		if (h == 1)
+			v = -v;
+		return v;
+	}
+
+	public AltosMapPos(AltosUIFrame in_owner,
+			   String label_value,
+			   String[] hemi_names,
+			   double default_value) {
+		super(BoxLayout.X_AXIS);
+		owner = in_owner;
+		label = new JLabel(label_value);
+		hemi = new JComboBox<String>(hemi_names);
+		hemi.setEditable(false);
+		deg = new JTextField(5);
+		deg.setMinimumSize(deg.getPreferredSize());
+		deg.setHorizontalAlignment(JTextField.RIGHT);
+		deg_label = new JLabel("°");
+		min = new JTextField(9);
+		min.setMinimumSize(min.getPreferredSize());
+		min_label = new JLabel("'");
+		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);
+	}
+}
+
+class AltosSite {
+	String	name;
+	double	latitude;
+	double	longitude;
+
+	public String toString() {
+		return name;
+	}
+
+	public AltosSite(String in_name, double in_latitude, double in_longitude) {
+		name = in_name;
+		latitude = in_latitude;
+		longitude = in_longitude;
+	}
+
+	public AltosSite(String line) throws ParseException {
+		String[]	elements = line.split(":");
+
+		if (elements.length < 3)
+			throw new ParseException(String.format("Invalid site line %s", line), 0);
+
+		name = elements[0];
+
+		try {
+			latitude = Double.parseDouble(elements[1]);
+			longitude = Double.parseDouble(elements[2]);
+		} catch (NumberFormatException ne) {
+			throw new ParseException(String.format("Invalid site line %s", line), 0);
+		}
+	}
+}
+
+class AltosSites extends Thread {
+	AltosSiteMapPreload	preload;
+	URL			url;
+	LinkedList<AltosSite>	sites;
+
+	void notify_complete() {
+		SwingUtilities.invokeLater(new Runnable() {
+				public void run() {
+					preload.set_sites();
+				}
+			});
+	}
+
+	void add(AltosSite site) {
+		sites.add(site);
+	}
+
+	void add(String line) {
+		try {
+			add(new AltosSite(line));
+		} catch (ParseException pe) {
+		}
+	}
+
+	public void run() {
+		try {
+			URLConnection uc = url.openConnection();
+			//int length = uc.getContentLength();
+
+			InputStreamReader in_stream = new InputStreamReader(uc.getInputStream(), AltosLib.unicode_set);
+			BufferedReader in = new BufferedReader(in_stream);
+
+			for (;;) {
+				String line = in.readLine();
+				if (line == null)
+					break;
+				add(line);
+			}
+		} catch (IOException e) {
+		} finally {
+			notify_complete();
+		}
+	}
+
+	public AltosSites(AltosSiteMapPreload in_preload) {
+		sites = new LinkedList<AltosSite>();
+		preload = in_preload;
+		try {
+			url = new URL(AltosLib.launch_sites_url);
+		} catch (java.net.MalformedURLException e) {
+			notify_complete();
+		}
+		start();
+	}
+}
+
+public class AltosSiteMapPreload extends AltosUIDialog implements ActionListener, ItemListener {
+	AltosUIFrame	owner;
+	AltosSiteMap	map;
+
+	AltosMapPos	lat;
+	AltosMapPos	lon;
+
+	final static int	radius = 5;
+	final static int	width = (radius * 2 + 1);
+	final static int	height = (radius * 2 + 1);
+
+	JProgressBar	pbar;
+
+	AltosSites	sites;
+	JLabel		site_list_label;
+	JComboBox<AltosSite>	site_list;
+
+	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 x, int y, String in_s) {
+			n = (x + radius) + (y + radius) * width + 1;
+			s = in_s;
+		}
+
+		public void run() {
+			pbar.setValue(n);
+			pbar.setString(s);
+			if (n < width * height) {
+				pbar.setValue(n);
+				pbar.setString(s);
+			} else {
+				pbar.setValue(0);
+				pbar.setString("");
+				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 = -map.radius; y <= map.radius; y++) {
+				for (int x = -map.radius; x <= map.radius; x++) {
+					String	pngfile;
+					pngfile = map.initMap(new Point(x,y));
+					SwingUtilities.invokeLater(new updatePbar(x, y, pngfile));
+				}
+			}
+		}
+	}
+
+	public void set_sites() {
+		int	i = 1;
+		for (AltosSite site : sites.sites) {
+			site_list.insertItemAt(site, i);
+			i++;
+		}
+	}
+
+	public void itemStateChanged(ItemEvent e) {
+		int		state = e.getStateChange();
+
+		if (state == ItemEvent.SELECTED) {
+			Object	o = e.getItem();
+			if (o instanceof AltosSite) {
+				AltosSite	site = (AltosSite) o;
+				lat.set_value(site.latitude);
+				lon.set_value(site.longitude);
+			}
+		}
+	}
+
+	public void actionPerformed(ActionEvent e) {
+		String	cmd = e.getActionCommand();
+
+		if (cmd.equals("close"))
+			setVisible(false);
+
+		if (cmd.equals("load")) {
+			if (!loading) {
+				try {
+					final double	latitude = lat.get_value();
+					final double	longitude = lon.get_value();
+					map.setBaseLocation(latitude,longitude);
+					map.draw_circle(latitude,longitude);
+					loading = true;
+					bgLoad thread = new bgLoad(map);
+					thread.start();
+				} catch (NumberFormatException ne) {
+					load_button.setSelected(false);
+				}
+			}
+		}
+	}
+
+	public AltosSiteMapPreload(AltosUIFrame 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(radius);
+
+		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);
+
+		site_list_label = new JLabel ("Known Launch Sites:");
+
+		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;
+
+		pane.add(site_list_label, c);
+
+		site_list = new JComboBox<AltosSite>(new AltosSite[] { new AltosSite("Site List", 0, 0) });
+		site_list.addItemListener(this);
+
+		sites = new AltosSites(this);
+
+		c.fill = GridBagConstraints.HORIZONTAL;
+		c.anchor = GridBagConstraints.CENTER;
+		c.insets = i;
+		c.weightx = 1;
+		c.weighty = 0;
+
+		c.gridx = 1;
+		c.gridy = 2;
+		c.gridwidth = 1;
+
+		pane.add(site_list, c);
+
+		lat = new AltosMapPos(owner,
+				      "Latitude:",
+				      lat_hemi_names,
+				      37.167833333);
+		c.fill = GridBagConstraints.NONE;
+		c.anchor = GridBagConstraints.CENTER;
+		c.insets = i;
+		c.weightx = 0;
+		c.weighty = 0;
+
+		c.gridx = 0;
+		c.gridy = 3;
+		c.gridwidth = 1;
+		c.anchor = GridBagConstraints.CENTER;
+
+		pane.add(lat, c);
+
+		lon = new AltosMapPos(owner,
+				      "Longitude:",
+				      lon_hemi_names,
+				      -97.73975);
+
+		c.fill = GridBagConstraints.NONE;
+		c.anchor = GridBagConstraints.CENTER;
+		c.insets = i;
+		c.weightx = 0;
+		c.weighty = 0;
+
+		c.gridx = 1;
+		c.gridy = 3;
+		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 = 4;
+		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 = 4;
+		c.gridwidth = 1;
+		c.anchor = GridBagConstraints.CENTER;
+
+		pane.add(close_button, c);
+
+		pack();
+		setLocationRelativeTo(owner);
+		setVisible(true);
+	}
+}