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/*
* 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_6;
import java.awt.*;
import java.awt.image.*;
import javax.swing.*;
import javax.imageio.*;
import java.awt.geom.*;
import java.io.*;
import java.util.*;
import java.awt.RenderingHints.*;
import org.altusmetrum.altoslib_6.*;
public class AltosUIMapTile {
AltosUIMapTileListener listener;
AltosUILatLon upper_left, center;
int px_size;
int zoom;
int maptype;
AltosUIMapStore store;
AltosUIMapCache cache;
int status;
private File map_file() {
double lat = center.lat;
double lon = center.lon;
char chlat = lat < 0 ? 'S' : 'N';
char chlon = lon < 0 ? 'W' : 'E';
if (lat < 0) lat = -lat;
if (lon < 0) lon = -lon;
String maptype_string = String.format("%s-", AltosUIMap.maptype_names[maptype]);
String format_string;
if (maptype == AltosUIMap.maptype_hybrid || maptype == AltosUIMap.maptype_satellite || maptype == AltosUIMap.maptype_terrain)
format_string = "jpg";
else
format_string = "png";
return new File(AltosUIPreferences.mapdir(),
String.format("map-%c%.6f,%c%.6f-%s%d.%s",
chlat, lat, chlon, lon, maptype_string, zoom, format_string));
}
private String map_url() {
String format_string;
if (maptype == AltosUIMap.maptype_hybrid || maptype == AltosUIMap.maptype_satellite || maptype == AltosUIMap.maptype_terrain)
format_string = "jpg";
else
format_string = "png32";
if (AltosUIVersion.has_google_maps_api_key())
return String.format("http://maps.google.com/maps/api/staticmap?center=%.6f,%.6f&zoom=%d&size=%dx%d&sensor=false&maptype=%s&format=%s&key=%s",
center.lat, center.lon, zoom, px_size, px_size, AltosUIMap.maptype_names[maptype], format_string, AltosUIVersion.google_maps_api_key);
else
return String.format("http://maps.google.com/maps/api/staticmap?center=%.6f,%.6f&zoom=%d&size=%dx%d&sensor=false&maptype=%s&format=%s",
center.lat, center.lon, zoom, px_size, px_size, AltosUIMap.maptype_names[maptype], format_string);
}
private Font font = null;
public void set_font(Font font) {
this.font = font;
}
int painting_serial;
int painted_serial;
Image image;
public void paint_graphics(Graphics2D g2d, AltosUIMapTransform t, int serial) {
if (serial < painted_serial)
return;
Point2D.Double point_double = t.screen(upper_left);
Point point = new Point((int) (point_double.x + 0.5),
(int) (point_double.y + 0.5));
painted_serial = serial;
if (!g2d.hitClip(point.x, point.y, px_size, px_size))
return;
if (image != null) {
g2d.drawImage(image, point.x, point.y, null);
image = null;
} else {
g2d.setColor(Color.GRAY);
g2d.fillRect(point.x, point.y, px_size, px_size);
if (t.has_location()) {
String message = null;
switch (status) {
case AltosUIMapCache.loading:
message = "Loading...";
break;
case AltosUIMapCache.bad_request:
message = "Internal error";
break;
case AltosUIMapCache.failed:
message = "Network error, check connection";
break;
case AltosUIMapCache.forbidden:
message = "Too many requests, try later";
break;
}
if (message != null && font != null) {
g2d.setFont(font);
g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
Rectangle2D bounds = font.getStringBounds(message, g2d.getFontRenderContext());
float x = px_size / 2.0f;
float y = px_size / 2.0f;
x = x - (float) bounds.getWidth() / 2.0f;
y = y + (float) bounds.getHeight() / 2.0f;
g2d.setColor(Color.BLACK);
g2d.drawString(message, (float) point_double.x + x, (float) point_double.y + y);
}
}
}
}
public void set_status(int status) {
this.status = status;
listener.notify_tile(this, status);
}
public void notify_image(Image image) {
listener.notify_tile(this, status);
}
public void paint(Graphics g, AltosUIMapTransform t) {
Graphics2D g2d = (Graphics2D) g;
boolean queued = false;
Point2D.Double point = t.screen(upper_left);
if (!g.hitClip((int) (point.x + 0.5), (int) (point.y + 0.5), px_size, px_size))
return;
++painting_serial;
if (image == null && t.has_location())
image = cache.get(this, store, px_size, px_size);
paint_graphics(g2d, t, painting_serial);
}
public int store_status() {
return store.status();
}
public void add_store_listener(AltosUIMapStoreListener listener) {
store.add_listener(listener);
}
public void remove_store_listener(AltosUIMapStoreListener listener) {
store.remove_listener(listener);
}
public AltosUIMapTile(AltosUIMapTileListener listener, AltosUILatLon upper_left, AltosUILatLon center, int zoom, int maptype, int px_size, Font font) {
this.listener = listener;
this.upper_left = upper_left;
cache = listener.cache();
while (center.lon < -180.0)
center.lon += 360.0;
while (center.lon > 180.0)
center.lon -= 360.0;
this.center = center;
this.zoom = zoom;
this.maptype = maptype;
this.px_size = px_size;
this.font = font;
status = AltosUIMapCache.loading;
store = AltosUIMapStore.get(map_url(), map_file());
}
}
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