/*
* Copyright 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.maps.sample.hellomaps.client;
import com.google.gwt.maps.client.Copyright;
import com.google.gwt.maps.client.CopyrightCollection;
import com.google.gwt.maps.client.MapType;
import com.google.gwt.maps.client.MapWidget;
import com.google.gwt.maps.client.TileLayer;
import com.google.gwt.maps.client.control.MapTypeControl;
import com.google.gwt.maps.client.geom.LatLng;
import com.google.gwt.maps.client.geom.LatLngBounds;
import com.google.gwt.maps.client.geom.MercatorProjection;
import com.google.gwt.maps.client.geom.Point;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.VerticalPanel;
/**
* To create an info window, call the openInfoWindow method, passing it a
* location and a DOM element to display. The following example code displays an
* info window anchored to the center of the map with a simple "Hello, world"
* message.
*/
public class CustomMapTypeDemo extends MapsDemo {
private static HTML descHTML = null;
private static final String descString = "<h2>Custom MapType Demo</h2>\n"
+ "<p>Tests the MapType and TileLayer APIs</p>"
+ "<p>You should see a <i>MyMap</i> button on the upper right of "
+ "the map that shows crosses on a grey background when pressed. "
+ "</p>";
public static MapsDemoInfo init() {
return new MapsDemoInfo() {
@Override
public MapsDemo createInstance() {
return new CustomMapTypeDemo();
}
@Override
public HTML getDescriptionHTML() {
if (descHTML == null) {
descHTML = new HTML(descString);
}
return descHTML;
}
@Override
public String getName() {
return "Creating a custom MapType";
}
};
}
private MapWidget map;
public CustomMapTypeDemo() {
VerticalPanel vertPanel = new VerticalPanel();
vertPanel.setStyleName("hm-panel");
map = new MapWidget(LatLng.newInstance(33.7814790, -84.3880580), 13);
map.setSize("500px", "450px");
CopyrightCollection myCopyright = new CopyrightCollection("");
myCopyright.addCopyright(new Copyright(1, LatLngBounds.newInstance(LatLng.newInstance(34,
-81), LatLng.newInstance(36, -79)), 10, ""));
TileLayer tileLayer = new TileLayer(myCopyright, 10, 18) {
@Override
public double getOpacity() {
return 1.0;
}
@Override
public String getTileURL(Point tile, int zoomLevel) {
return "http://www.google.com/apis/maps/documentation/examples/include/tile_crosshairs.png";
}
@Override
public boolean isPng() {
return true;
}
};
MapType mapType = new MapType(new TileLayer[] {tileLayer},
new MercatorProjection(20), "MyMap");
map.addMapType(mapType);
map.addControl(new MapTypeControl());
vertPanel.add(map);
initWidget(vertPanel);
}
}