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, 142 insertions, 0 deletions

diff --git a/altosuilib/AltosSiteMapTile.java b/altosuilib/AltosSiteMapTile.java
new file mode 100644
index 00000000..1046d6bd
--- /dev/null
+++ b/altosuilib/AltosSiteMapTile.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright © 2010 Anthony Towns <aj@erisian.com.au>
+ *
+ * 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.image.*;
+import javax.swing.*;
+import javax.imageio.*;
+import java.awt.geom.Point2D;
+import java.awt.geom.Line2D;
+import java.io.*;
+import java.util.*;
+import org.altusmetrum.altoslib_4.*;
+
+class AltosPoint {
+	Point2D.Double	pt;
+	int		state;
+
+	AltosPoint(Point2D.Double pt, int state) {
+		this.pt = pt;
+		this.state = state;
+	}
+}
+
+public class AltosSiteMapTile extends JComponent {
+	int px_size;
+	File file;
+
+	Point2D.Double	boost;
+	Point2D.Double	landed;
+
+	LinkedList<AltosPoint>	points;
+
+	public void loadMap(File pngFile) {
+		file = pngFile;
+		repaint();
+	}
+
+	public void clearMap() {
+		boost = null;
+		landed = null;
+		points = null;
+		file = null;
+	}
+
+	static Color stateColors[] = {
+		Color.WHITE,  // startup
+		Color.WHITE,  // idle
+		Color.WHITE,  // pad
+		Color.RED,    // boost
+		Color.PINK,   // fast
+		Color.YELLOW, // coast
+		Color.CYAN,   // drogue
+		Color.BLUE,   // main
+		Color.BLACK   // landed
+	};
+
+	private void draw_circle(Graphics g, Point2D.Double pt) {
+		g.drawOval((int)pt.x-5, (int)pt.y-5, 10, 10);
+		g.drawOval((int)pt.x-20, (int)pt.y-20, 40, 40);
+		g.drawOval((int)pt.x-35, (int)pt.y-35, 70, 70);
+	}
+
+	public void set_boost(Point2D.Double boost) {
+		this.boost = boost;
+		repaint();
+	}
+
+	public void paint(Graphics g) {
+		Graphics2D	g2d = (Graphics2D) g;
+		AltosPoint	prev = null;
+		Image		img = null;
+
+		if (file != null)
+			img = AltosSiteMapCache.get_image(this, file, px_size, px_size);
+
+		if (img != null) {
+			g2d.drawImage(img, 0, 0, null);
+		} else {
+			g2d.setColor(Color.GRAY);
+			g2d.fillRect(0, 0, getWidth(), getHeight());
+		}
+
+		g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
+				   RenderingHints.VALUE_ANTIALIAS_ON);
+		g2d.setStroke(new BasicStroke(6, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
+
+		if (points != null) {
+			for (AltosPoint point : points) {
+				if (prev != null) {
+					if (0 <= point.state && point.state < stateColors.length)
+						g2d.setColor(stateColors[point.state]);
+					g2d.draw(new Line2D.Double(prev.pt, point.pt));
+				}
+				prev = point;
+			}
+		}
+		if (boost != null) {
+			g2d.setColor(Color.RED);
+			draw_circle(g2d, boost);
+		}
+		if (landed != null) {
+			g2d.setColor(Color.BLACK);
+			draw_circle(g2d, landed);
+		}
+	}
+
+	public synchronized void show(AltosState state, AltosListenerState listener_state,
+				      Point2D.Double last_pt, Point2D.Double pt)
+	{
+		if (points == null)
+			points = new LinkedList<AltosPoint>();
+
+		points.add(new AltosPoint(pt, state.state));
+
+		if (state.state == AltosLib.ao_flight_boost && boost == null)
+			boost = pt;
+		if (state.state == AltosLib.ao_flight_landed && landed == null)
+			landed = pt;
+		repaint();
+	}
+
+	public AltosSiteMapTile(int in_px_size) {
+		px_size = in_px_size;
+		setPreferredSize(new Dimension(px_size, px_size));
+	}
+}