Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
com.codename1.maps.MapComponent Maven / Gradle / Ivy
/*
* Copyright (c) 2010, 2011 Itiner.pl. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Itiner designates this
* particular file as subject to the "Classpath" exception as provided
* by Itiner in the LICENSE.txt file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package com.codename1.maps;
import com.codename1.location.Location;
import com.codename1.location.LocationManager;
import com.codename1.ui.geom.Point;
import com.codename1.ui.Component;
import com.codename1.ui.Display;
import com.codename1.ui.Font;
import com.codename1.ui.Graphics;
import com.codename1.ui.events.ActionEvent;
import com.codename1.ui.geom.Dimension;
import com.codename1.ui.geom.Rectangle;
import java.util.Enumeration;
import java.util.Vector;
import com.codename1.maps.providers.MapProvider;
import com.codename1.maps.layers.AbstractLayer;
import com.codename1.maps.layers.Layer;
import com.codename1.maps.layers.PointsLayer;
import com.codename1.maps.providers.OpenStreetMapProvider;
import com.codename1.ui.*;
import com.codename1.ui.events.ActionListener;
import com.codename1.ui.layouts.BorderLayout;
import com.codename1.ui.layouts.FlowLayout;
import com.codename1.ui.plaf.Style;
import com.codename1.ui.plaf.UIManager;
import com.codename1.ui.util.UITimer;
import com.codename1.util.MathUtil;
import java.util.ArrayList;
/**
* All communication with the map and layers should be done in WGS84, it takes
* care of coordinates transformation.
*
* @author Roman Kamyk
* @deprecated we highly recommend migrating to the native maps cn1lib
*/
public class MapComponent extends Container {
private Coord _center;
private int _zoom;
private MapProvider _map;
private Vector _layers;
private boolean _debugInfo = false;
private boolean _needTiles = true;
private int draggedx, draggedy;
private int pressedx, pressedy;
private Vector _tiles;
private Point _delta = null;
private double latitude = Double.NaN;
private double longitude = Double.NaN;
private boolean drawMapPointer = false;
private double oldDistance = -1;
private Image buffer = null;
private boolean refreshLayers = false;
private int scaleX = 0;
private int scaleY = 0;
private int translateX;
private int translateY;
private int zoomCenterX = 0;
private int zoomCenterY = 0;
private long lastPressed = -1;
private int tapCount = 0;
private int singleTapThreshold = 200;
private int doubleTapThreshold = 200;
private static Font attributionFont = Font.createSystemFont(Font.FACE_PROPORTIONAL, Font.STYLE_ITALIC, Font.SIZE_SMALL);
private ArrayList listeners;
/**
* Empty constructor creates a map with OpenStreetMapProvider on the Last
* known Location of the LocationManager
*/
public MapComponent() {
this(new OpenStreetMapProvider());
}
/**
* Constructor with a given provider
*
* @param provider map provider
*/
public MapComponent(MapProvider provider) {
this(provider, (Coord) null, 4, true);
}
/**
* Constructor
*
* @param provider map provider
* @param centerPosition center position
* @param zoomLevel zoom level
*/
public MapComponent(MapProvider provider, Location centerPosition, int zoomLevel) {
this(provider, centerPosition, zoomLevel, true);
}
/**
* Constructor
*
* @param provider map provider
* @param centerPosition center position
* @param zoomLevel zoom level
* @param cacheEnabled is cache enabled
*/
public MapComponent(MapProvider provider, Location centerPosition, int zoomLevel, boolean cacheEnabled) {
this(provider, new Coord(centerPosition.getLatitude(), centerPosition.getLongitude()), zoomLevel, cacheEnabled);
}
/**
* Constructor
*
* @param provider map provider
* @param centerPosition center position
* @param zoomLevel zoom level
*/
public MapComponent(MapProvider provider, Coord centerPosition, int zoomLevel) {
this(provider, centerPosition, zoomLevel, true);
}
/**
* Constructor
*
* @param provider map provider
* @param centerPosition center position
* @param zoomLevel zoom level
* @param cacheEnabled is cache enabled
*/
public MapComponent(MapProvider provider, Coord centerPosition, int zoomLevel, boolean cacheEnabled) {
if (cacheEnabled) {
_map = new CacheProviderProxy(provider);
} else {
_map = provider;
}
if (centerPosition == null) {
Location l = LocationManager.getLocationManager().getLastKnownLocation();
if (l != null) {
Coord p = new Coord(l.getLatitude(), l.getLongitude());
_center = p.isProjected() ? p : _map.projection().fromWGS84(p);
} else {
_center = new Coord(0, 0, true);
}
} else {
_center = centerPosition.isProjected() ? centerPosition : _map.projection().fromWGS84(centerPosition);
}
_zoom = zoomLevel;
_layers = new Vector();
setFocusable(false);
if (Display.getInstance().isTouchScreenDevice() && getUIManager().isThemeConstant("mapZoomButtonsBool", true)) {
setLayout(new BorderLayout());
Container buttonsbar = new Container(new FlowLayout(Component.RIGHT));
Button out = new Button("-");
out.setUIID("MapZoomOut");
out.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
zoomOut();
repaint();
fireMapListenerEvent();
}
});
buttonsbar.addComponent(out);
Button in = new Button("+");
in.setUIID("MapZoomIn");
in.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
zoomIn();
repaint();
fireMapListenerEvent();
}
});
buttonsbar.addComponent(in);
addComponent(BorderLayout.SOUTH, buttonsbar);
}
drawMapPointer = UIManager.getInstance().isThemeConstant("drawMapPointerBool", false);
}
/**
* {@inheritDoc}
*/
public void paintBackground(Graphics g) {
super.paintBackground(g);
if (Display.getInstance().areMutableImagesFast()) {
if (buffer == null) {
buffer = ImageFactory.createImage(this, getWidth(), getHeight(), 0);
}
if (_needTiles || refreshLayers) {
paintmap(buffer.getGraphics());
refreshLayers = false;
}
g.translate(-translateX, -translateY);
if (scaleX > 0) {
float tx = (float)zoomCenterX / (float)getWidth();
tx = tx * (float)(scaleX - getWidth());
float ty = (float)zoomCenterY / (float)getHeight();
ty = ty * (float)(scaleY - getHeight());
g.drawImage(buffer, -(int)tx, -(int)ty, scaleX, scaleY);
} else {
g.drawImage(buffer, (getWidth() - buffer.getWidth()) / 2, (getHeight() - buffer.getHeight()) / 2);
}
g.translate(translateX, translateY);
} else {
int clipx = g.getClipX();
int clipy = g.getClipY();
int clipw = g.getClipWidth();
int cliph = g.getClipHeight();
if (scaleX > 0) {
float sx = (float) scaleX / (float) getWidth();
float sy = (float) scaleY / (float) getHeight();
float tx = (float)zoomCenterX / (float)getWidth();
tx = -tx * (float)(scaleX - getWidth())/sx;
float ty = (float)zoomCenterY / (float)getHeight();
ty = -ty * (float)(scaleY - getHeight())/sy;
g.translate((int)tx, (int)ty);
g.scale(sx, sy);
paintmap(g);
g.resetAffine();
g.translate(-(int)tx, -(int)ty);
} else {
g.translate(-translateX, -translateY);
paintmap(g);
g.translate(translateX, translateY);
}
g.setClip(clipx, clipy, clipw, cliph);
}
}
/**
* {@inheritDoc}
*/
protected void laidOut() {
super.laidOut();
/*if (buffer != null) {
buffer.dispose();
}*/
refreshLayers = true;
_needTiles = true;
buffer = null;
//super.repaint();
}
/**
* {@inheritDoc}
*/
protected boolean shouldBlockSideSwipe() {
return true;
}
/**
* {@inheritDoc}
*/
protected Dimension calcPreferredSize() {
return new Dimension(Display.getInstance().getDisplayWidth(), Display.getInstance().getDisplayHeight());
}
/**
* {@inheritDoc}
*/
protected void focusGained() {
setHandlesInput(true);
}
/**
* {@inheritDoc}
*/
public void pointerDragged(int x, int y) {
super.pointerDragged(x, y);
if ( oldDistance == -1 ){
translateX += (draggedx - x);
translateY += (draggedy - y);
draggedx = x;
draggedy = y;
if ( Math.abs(translateX)>10 || Math.abs(translateY)>10){
Coord scale = _map.scale(_zoom);
_center = _center.translate(translateY * -scale.getLatitude(), translateX * scale.getLongitude());
_needTiles = true;
translateX = 0;
translateY = 0;
}
}
super.repaint();
}
/**
* {@inheritDoc}
*/
public void pointerPressed(int x, int y) {
super.pointerPressed(x, y);
lastPressed = System.currentTimeMillis();
pressedx = x;
pressedy = y;
draggedx = x;
draggedy = y;
}
/**
* {@inheritDoc}
*/
@Override
public void pointerDragged(int[] x, int[] y) {
if (x.length > 1) {
double currentDis = distance(x, y);
if (oldDistance == -1) {
oldDistance = currentDis;
zoomCenterX = (x[0]+x[1])/2 - getAbsoluteX();
zoomCenterY = (y[0]+y[1])/2 - getAbsoluteY();
scaleX = getWidth();
scaleY = getHeight();
}
if (Math.abs(currentDis - oldDistance) > 10f) {
double scale = currentDis / oldDistance;
if (scale > 1) {
if (_zoom == getProvider().maxZoomLevel()) {
scaleX = 0;
scaleY = 0;
oldDistance = -1;
return;
}
} else {
if (_zoom == getProvider().minZoomLevel()) {
scaleX = 0;
scaleY = 0;
oldDistance = -1;
return;
}
}
scaleX = (int) (scale * scaleX);
scaleY = (int) (scale * scaleY);
oldDistance = currentDis;
super.repaint();
}
} else {
super.pointerDragged(x, y);
}
}
private double distance(int[] x, int[] y) {
int disx = x[0] - x[1];
int disy = y[0] - y[1];
return Math.sqrt(disx * disx + disy * disy);
}
protected void pointerTapped(int x, int y, int tapCount){
if ( tapCount == 2 ){
Coord c = this.getCoordFromPosition(x, y);
_center = _map.projection().fromWGS84(c);
zoomIn();
super.repaint();
}
}
/**
* {@inheritDoc}
*/
public void pointerReleased(int x, int y) {
super.pointerReleased(x, y);
final long currTime = System.currentTimeMillis();
if ( currTime - lastPressed < singleTapThreshold ){
tapCount++;
final int tapX = x;
final int tapY = y;
final int currTapCount = tapCount;
UITimer timer = new UITimer(new Runnable(){
public void run() {
if ( currTapCount == tapCount ){
pointerTapped(tapX, tapY, tapCount);
tapCount = 0;
}
}
});
timer.schedule(doubleTapThreshold, false, this.getComponentForm());
} else {
tapCount = 0;
}
if (oldDistance != -1) {
double scale = (double) scaleX / (double) getWidth();
Coord refCoord = this.getCoordFromPosition(zoomCenterX+getAbsoluteX(), zoomCenterY+getAbsoluteY());
int oldZoom = _zoom;
if (scale > 1) {
if (scale < 1.2) {
//do nothing
} else if (scale < 1.6) {
zoomIn();
} else if (scale < 2.0) {
zoomIn();
zoomIn();
} else if (scale < 2.4) {
zoomIn();
zoomIn();
zoomIn();
} else {
zoomIn();
zoomIn();
zoomIn();
zoomIn();
}
} else {
if (scale > 0.8) {
//do nothing
} else if (scale > 0.5) {
zoomOut();
} else if (scale > 0.2) {
zoomOut();
zoomOut();
} else {
zoomOut();
zoomOut();
zoomOut();
}
}
if ( oldZoom != _zoom ){
Coord c1 = this.getCoordFromPosition(0, 0);
Coord c2 = this.getCoordFromPosition(getWidth(), getHeight());
Coord pixelToCoord = new Coord((c2.getLatitude()-c1.getLatitude())/(float)getHeight(), (c2.getLongitude()-c1.getLongitude())/(float)getWidth());
float offX = (getWidth()/2) - zoomCenterX;
float offY = (getHeight()/2) - zoomCenterY;
_center = _map.projection().fromWGS84(refCoord.translate(offY*pixelToCoord.getLatitude(), offX*pixelToCoord.getLongitude()));
}
translateX = 0;
translateY = 0;
scaleX = 0;
scaleY = 0;
oldDistance = -1;
if (buffer != null) {
//buffer.dispose();
buffer = null;
refreshLayers = true;
}
if(Display.getInstance().areMutableImagesFast()) {
super.repaint();
} else {
// workaround for rounding error in scale/clipping
getComponentForm().repaint();
}
fireMapListenerEvent();
return;
}
Coord scale = _map.scale(_zoom);
_center = _center.translate(translateY * -scale.getLatitude(), translateX * scale.getLongitude());
_needTiles = true;
translateX = 0;
translateY = 0;
x = x - getAbsoluteX();
y = y - getAbsoluteY();
Tile t = screenTile();
Coord southWest = t.position(x - 20, t.dimension().getHeight() - y - 20);
Coord c = Mercator.inverseMercator(southWest.getLatitude(), southWest.getLongitude());
Coord northEast = t.position(x + 20, t.dimension().getHeight() - y + 20);
c = Mercator.inverseMercator(northEast.getLatitude(), northEast.getLongitude());
BoundingBox bbox = new BoundingBox(southWest, northEast);
Enumeration e = _layers.elements();
while (e.hasMoreElements()) {
LayerWithZoomLevels layer = (LayerWithZoomLevels) e.nextElement();
if (layer.layer instanceof PointsLayer) {
((PointsLayer) layer.layer).fireActionEvent(bbox);
}
}
super.repaint();
fireMapListenerEvent();
}
/**
* Gets the Coord location on the map from a x, y position.
*
* @param x X-coordinate
* @param y Y-coordinate
* @return a Coord Object.
*/
public Coord getCoordFromPosition(int x, int y) {
x = x - getAbsoluteX();
y = y - getAbsoluteY();
Tile t = screenTile();
Coord c = t.position(x, t.dimension().getHeight() - y);
return _map.projection().toWGS84(c);
}
/**
* Gets the screen coordinates of a specific Coord
*
* @param coord a lat,lon location
* @return the Point of the coordinate on the Map
*/
public Point getPointFromCoord(Coord coord) {
if (!coord.isProjected()) {
coord = _map.projection().fromWGS84(coord);
}
return screenTile().pointPosition(coord);
}
/**
* {@inheritDoc}
*/
public void keyPressed(int keyCode) {
int oldZoom = _zoom;
Coord oldCenter = _center;
if (isLeftKey(keyCode)) {
moveLeft();
} else if (isRightKey(keyCode)) {
moveRight();
} else if (isDownKey(keyCode)) {
moveDown();
} else if (isUpKey(keyCode)) {
moveUp();
}
if (!_map.projection().extent().contains(_center)) {
_center = oldCenter;
}
if (isZoomInKey(keyCode)) {
zoomIn();
}
if (isZoomOutKey(keyCode)) {
zoomOut();
}
if (isZoomToLayersKey(keyCode)) {
zoomToLayers();
}
super.keyPressed(keyCode);
if (_center != oldCenter || _zoom != oldZoom) {
_needTiles = true;
}
super.repaint();
fireMapListenerEvent();
}
private void paintmap(Graphics g) {
g.translate(getX(), getY());
if (_needTiles) {
getTiles();
_needTiles = false;
}
drawTiles(g);
drawLayers(g);
if (_debugInfo) {
drawDebug(g);
}
drawPointer(g);
drawAttribution(g, _map.attribution());
g.translate(-getX(), -getY());
}
/**
* {@inheritDoc}
*/
private Tile screenTile() {
Dimension componentDimension = new Dimension(getWidth(), getHeight());
Coord southWest = _map.translate(_center, _zoom, -getWidth() / 2, -getHeight() / 2);
Coord northEast = _map.translate(_center, _zoom, getWidth() / 2, getHeight() / 2);
BoundingBox bbox = new BoundingBox(southWest, northEast);
return new Tile(componentDimension, bbox, null);
}
private void getTiles() throws RuntimeException {
_tiles = new Vector();
Dimension tileSize = _map.tileSize();
int posY = 0;
_delta = null;
while (posY - tileSize.getHeight() < getHeight()) {
int posX = 0;
while (posX - tileSize.getWidth() < getWidth()) {
Tile tile;
Coord cur = _map.translate(_center, _zoom, posX - getWidth() / 2, getHeight() / 2 - posY);
if (_map.projection().extent().contains(cur)) {
tile = _map.tileFor(_map.bboxFor(cur, _zoom));
if (_delta == null) {
_delta = tile.pointPosition(cur);
}
tile.setsTileReadyListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
refreshLayers = true;
repaint();
}
});
_tiles.addElement(new PositionedTile(new Point(posX, posY), tile));
}
posX += tileSize.getWidth();
}
posY += tileSize.getHeight();
}
}
private void drawTiles(Graphics g) {
if (_delta == null) {
//#debug
System.out.println("Delta is null!");
return;
}
Enumeration e = _tiles.elements();
g.translate(-_delta.getX(), -_delta.getY());
while (e.hasMoreElements()) {
PositionedTile pt = (PositionedTile) e.nextElement();
pt.tile().paint(g, pt.position().getX(), pt.position().getY());
}
g.translate(_delta.getX(), _delta.getY());
}
private void drawAttribution(Graphics g, String attribution) {
if (attribution == null) {
return;
}
g.setColor(0);
g.setFont(attributionFont);
Font f = g.getFont();
g.drawString(attribution, getWidth() - f.stringWidth(attribution) - 2, getHeight() - f.getHeight() - 2);
}
private void drawLayers(Graphics g) {
Enumeration e = _layers.elements();
Tile screenTile = screenTile();
while (e.hasMoreElements()) {
LayerWithZoomLevels layer = (LayerWithZoomLevels) e.nextElement();
if (_zoom >= layer.minZoomLevel && _zoom <= layer.maxZoomLevel) {
layer.layer.paint(g, screenTile);
}
}
}
private void drawPointer(Graphics g) {
if (drawMapPointer) {
g.setColor(0xFF0000);
int centerX = getWidth() / 2;
int centerY = getHeight() / 2;
int halfSize = 5;
g.drawRoundRect(centerX - halfSize, centerY - halfSize, 2 * halfSize, 2 * halfSize, halfSize, halfSize);
}
}
private void drawDebug(Graphics g) {
g.setColor(0x000000);
g.setFont(Font.createSystemFont(Font.FACE_PROPORTIONAL, Font.STYLE_PLAIN, Font.SIZE_MEDIUM));
g.drawString(_map.projection().toWGS84(_center).toString(), 5, 5);
g.drawString("Zoom:" + _zoom, 5, 5 + g.getFont().getHeight());
for (int i = 0; i < _layers.size(); i++) {
LayerWithZoomLevels lwzl = (LayerWithZoomLevels) _layers.elementAt(i);
g.drawString("Layer " + lwzl.layer.getName(), 5, 5 + (i + 2) * g.getFont().getHeight());
}
}
/**
* Adds a layer to the map
*
* @param layer to add
*/
public void addLayer(Layer layer) {
addLayer(layer, 0, _map.maxZoomLevel());
}
/**
* Adds a layer to the map
*
* @param layer to add
* @param minZoomLevel min zoom level of this Layer
* @param maxZoomLevel max zoom level of this Layer
*/
public void addLayer(Layer layer, int minZoomLevel, int maxZoomLevel) {
_layers.addElement(new LayerWithZoomLevels(layer, minZoomLevel, maxZoomLevel));
refreshLayers = true;
super.repaint();
}
/**
* Removes a Layer from the map
*
* @param layer to remove
*/
public void removeLayer(Layer layer) {
int length = _layers.size();
int no;
for (no = 0; no < length; no++) {
if (((LayerWithZoomLevels) _layers.elementAt(no)).layer == layer) {
break;
}
}
_layers.removeElementAt(no);
refreshLayers = true;
super.repaint();
}
/**
* Removes all layers from the map
*/
public void removeAllLayers() {
_layers.removeAllElements();
refreshLayers = true;
super.repaint();
}
/**
* Returns layers count
* @return The number of layers.
*/
public int getLayersConut() {
return _layers.size();
}
/**
* Returns Layer at index
*
* @param index the index of the layer
* @return The layer at the given index.
* @throws ArrayIndexOutOfBoundsException - if the index is out of range
* (index < 0 || index >= size())
*/
public Layer getLayerAt(int index) {
Layer l = ((LayerWithZoomLevels) _layers.elementAt(index)).layer;
return l;
}
/**
* Gets the map provider
*
* @return the map provider
*/
public MapProvider getProvider() {
return _map;
}
@Override
public void repaint() {
refreshLayers = true;
_needTiles = true;
super.repaint();
}
/**
* move the map 25% left
*/
public void moveLeft() {
Coord scale = _map.scale(_zoom);
double partX = 1.0 * getWidth() / 4;
_center = _center.translate(0, partX * -scale.getLongitude());
_needTiles = true;
}
/**
* move the map 25% right
*/
public void moveRight() {
Coord scale = _map.scale(_zoom);
double partX = 1.0 * getWidth() / 4;
_center = _center.translate(0, partX * scale.getLongitude());
_needTiles = true;
}
/**
* move the map 25% up
*/
public void moveUp() {
Coord scale = _map.scale(_zoom);
double partY = 1.0 * getHeight() / 4;
_center = _center.translate(partY * scale.getLatitude(), 0);
_needTiles = true;
}
/**
* move the map 25% down
*/
public void moveDown() {
Coord scale = _map.scale(_zoom);
double partY = 1.0 * getHeight() / 4;
_center = _center.translate(partY * -scale.getLatitude(), 0);
_needTiles = true;
}
/**
* zoom in the map one level if possible
*/
public void zoomIn() {
if (_zoom < _map.maxZoomLevel()) {
_zoom += 1;
_needTiles = true;
}
}
/**
* zoom out the map one level if possible
*/
public void zoomOut() {
if (_zoom > _map.minZoomLevel()) {
_zoom -= 1;
_needTiles = true;
}
}
/**
* Zoom the map the the giving bounding box
*
* @param boundingBox to zoom to
* @throws IllegalArgumentException if the boundingBox is not wg84 format
*/
public void zoomTo(BoundingBox boundingBox) {
if (boundingBox.projected()) {
throw new IllegalArgumentException("boundingBox should be wg84 format");
}
Dimension dimension = null;
if (getWidth() == 0 || getHeight() == 0) {
dimension = getPreferredSize();
} else {
dimension = new Dimension(getWidth(), getHeight());
}
final BoundingBox projectedBBOX = _map.projection().fromWGS84(boundingBox);
Tile tile = new Tile(dimension, projectedBBOX, null);
_zoom = _map.maxZoomFor(tile);
_center = tile.position(tile.dimension().getWidth() / 2, tile.dimension().getHeight() / 2);
_needTiles = true;
super.repaint();
}
/**
* Zoom map to the center of the given coordinate with the given zoom level
*
* @param coord center map to this coordinate, coord should be in wg84
* format
* @param zoomLevel zoom map to this level;
* @throws IllegalArgumentException if the coord is not wg84 format
*/
public void zoomTo(Coord coord, int zoomLevel) {
if (coord.isProjected()) {
throw new IllegalArgumentException("coord should be wg84 format");
}
_center = _map.projection().fromWGS84(coord);
_zoom = zoomLevel;
_needTiles = true;
super.repaint();
}
/**
* zoom map to largest zoom while all Layers are contained
*/
public void zoomToLayers() {
BoundingBox bbox = null;
Enumeration e = _layers.elements();
while (e.hasMoreElements()) {
LayerWithZoomLevels layer = (LayerWithZoomLevels) e.nextElement();
BoundingBox layerBbox = layer.layer.boundingBox();
if (layerBbox == null) {
continue;
}
if (bbox == null) {
bbox = layerBbox;
} else {
bbox = bbox.extend(layerBbox);
}
}
if (bbox != null) {
if (bbox.projected()) {
bbox = _map.projection().toWGS84(bbox);
}
zoomTo(bbox);
}
_needTiles = true;
}
/**
* Gets the center location of the map in WGS84 format.
* @return Coordinate of center location of map.
*/
public Coord getCenter() {
return _map.projection().toWGS84(_center);
}
/**
* Returns the current zoom level of the map.
*
* @return zoom level
*/
public int getZoomLevel() {
return _zoom;
}
/**
* Sets the current zoom level of the map.
*
* @param zoom Zoom level
*/
public void setZoomLevel(int zoom) {
if (zoom <= getMaxZoomLevel() && zoom >= getMinZoomLevel()) {
_zoom = zoom;
_needTiles = true;
super.repaint();
} else {
System.out.println("zoom level must be bigger then the min zoom "
+ "level and smaller then the max zoom level");
}
}
/**
* Returns the max zoom level of the map
*
* @return max zoom level
*/
public int getMaxZoomLevel() {
return _map.maxZoomLevel();
}
/**
* Returns the min zoom level of the map
*
* @return min zoom level
*/
public int getMinZoomLevel() {
return _map.minZoomLevel();
}
/**
* Gets the center of the map.
*
* @return Coord in WGS84
*/
public Coord center() {
return _map.projection().toWGS84(_center);
}
/**
*
* Checks if key code is left keycode.
*
* @return true if this is a left keycode
*
* @param keyCode The key-code to check.
*/
protected boolean isLeftKey(int keyCode) {
int game = Display.getInstance().getGameAction(keyCode);
return game == Display.GAME_LEFT;
}
/**
* Returns true if this is a right keycode
*
* @param keyCode The key code to check
* @return true if this is a right keycode.
*/
protected boolean isRightKey(int keyCode) {
int game = Display.getInstance().getGameAction(keyCode);
return game == Display.GAME_RIGHT;
}
/**
* Returns true if this is a down keycode
*
* @param keyCode The key code to check.
* @return True if key code is down key.
*/
protected boolean isDownKey(int keyCode) {
int game = Display.getInstance().getGameAction(keyCode);
return game == Display.GAME_DOWN;
}
/**
* Returns true if this is a up keycode
*
* @param keyCode The key code to check.
* @return true if key code is up key.
*/
protected boolean isUpKey(int keyCode) {
int game = Display.getInstance().getGameAction(keyCode);
return game == Display.GAME_UP;
}
/**
* Returns true if this is a zoom in keycode
*
* @param keyCode The key code to check
* @return true if key code is zoom-in key.
*/
protected boolean isZoomInKey(int keyCode) {
return keyCode == '1';
}
/**
* Returns true if this is a zoom out keycode
*
* @param keyCode The key code to check.
* @return true if the key code for the zoom-out key.
*/
protected boolean isZoomOutKey(int keyCode) {
return keyCode == '3';
}
/**
* Returns true if this is a zoom to layers keycode
*
* @param keyCode The key-code to check.
* @return true if the key code is for the zoom to layers key.
*/
protected boolean isZoomToLayersKey(int keyCode) {
return keyCode == '5';
}
/**
* Returns the distance between 2 points in meters
*
* @param latitude1
* @param longitude1
* @param latitude2
* @param longitude2
*
* @return distance in meters
*/
public static long distance(double latitude1, double longitude1, double latitude2, double longitude2) {
double latitudeSin = Math.sin(Math.toRadians(latitude2 - latitude1) / 2);
double longitudeSin = Math.sin(Math.toRadians(longitude2 - longitude1) / 2);
double a = latitudeSin * latitudeSin
+ Math.cos(Math.toRadians(latitude1)) * Math.cos(Math.toRadians(latitude2)) * longitudeSin * longitudeSin;
double c = 2 * MathUtil.atan2(Math.sqrt(a), Math.sqrt(1 - a));
return (long) (6378137 * c);
}
private void setLatitude(double latitude) {
this.latitude = latitude;
setCoord(latitude, longitude);
}
private void setLongitude(double longitude) {
this.longitude = longitude;
setCoord(latitude, longitude);
}
private void setCoord(double latitude, double longitude) {
if (Double.isNaN(latitude) && Double.isNaN(longitude)) {
_center = _map.projection().fromWGS84(new Coord(latitude, longitude));
_needTiles = true;
super.repaint();
}
}
private void fireMapListenerEvent() {
// assuming always EDT
if(listeners != null) {
for(MapListener l : listeners) {
l.mapPositionUpdated(this, _zoom, getCenter());
}
}
}
/**
* Adds a listener to map panning/zooming
* @param listener the listener callback
*/
public void addMapListener(MapListener listener) {
if(listeners == null) {
listeners = new ArrayList();
}
listeners.add(listener);
}
/**
* Removes the map listener callback
* @param listener the listener
*/
public void removeMapListener(MapListener listener) {
if(listeners == null) {
return;
}
listeners.remove(listener);
}
/**
* {@inheritDoc}
*/
public String[] getPropertyNames() {
return new String[]{"latitude", "longitude", "zoom"};
}
/**
* {@inheritDoc}
*/
public Class[] getPropertyTypes() {
return new Class[]{Double.class, Double.class, Integer.class};
}
/**
* {@inheritDoc}
*/
public Object getPropertyValue(String name) {
if (name.equals("latitude")) {
Coord c = _map.projection().toWGS84(_center);
return new Double(c.getLatitude());
}
if (name.equals("longitude")) {
Coord c = _map.projection().toWGS84(_center);
return new Double(c.getLongitude());
}
if (name.equals("zoom")) {
return new Integer(getZoomLevel());
}
return null;
}
/**
* {@inheritDoc}
*/
public String setPropertyValue(String name, Object value) {
if (name.equals("latitude")) {
setLatitude(((Double) value).doubleValue());
return null;
}
if (name.equals("longitude")) {
setLongitude(((Double) value).doubleValue());
return null;
}
if (name.equals("zoom")) {
setZoomLevel(((Integer) value).intValue());
return null;
}
return super.setPropertyValue(name, value);
}
}
class LayerWithZoomLevels {
public Layer layer;
public int minZoomLevel;
public int maxZoomLevel;
public LayerWithZoomLevels(Layer l, int min, int max) {
layer = l;
minZoomLevel = min;
maxZoomLevel = max;
}
}
