/*
* This is part of Geomajas, a GIS framework, http://www.geomajas.org/.
*
* Copyright 2008-2011 Geosparc nv, http://www.geosparc.com/, Belgium.
*
* The program is available in open source according to the GNU Affero
* General Public License. All contributions in this program are covered
* by the Geomajas Contributors License Agreement. For full licensing
* details, see LICENSE.txt in the project root.
*/
package org.geomajas.puregwt.client.general;
import org.geomajas.puregwt.client.ContentPanel;
import org.geomajas.puregwt.client.map.MapPresenter;
import org.geomajas.puregwt.client.map.event.MapInitializationEvent;
import org.geomajas.puregwt.client.map.event.MapInitializationHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.DecoratorPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
/**
* ContentPanel that demonstrates rendering abilities in world space with a map that supports resizing.
*
* @author Pieter De Graef
*/
public class ResizeMapPanel extends ContentPanel {
private MapPresenter mapPresenter;
public String getTitle() {
return "Map resize";
}
public String getDescription() {
return "This example shows map resizing capabilities.";
}
public Widget getContentWidget() {
// Define the left layout:
VerticalPanel leftLayout = new VerticalPanel();
leftLayout.setSize("220px", "100%");
leftLayout.add(new HTML("<h3>Resize the map:</h3>"));
Button resizeBtn = new Button("Enlarge map");
resizeBtn.setWidth("200");
resizeBtn.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent arg0) {
int width = mapPresenter.getViewPort().getMapWidth() + 20;
int height = mapPresenter.getViewPort().getMapHeight() + 15;
mapPresenter.setSize(width, height);
}
});
leftLayout.add(resizeBtn);
Button shrinkBtn = new Button("Shrink map");
shrinkBtn.setWidth("200");
shrinkBtn.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent arg0) {
int width = mapPresenter.getViewPort().getMapWidth() - 20;
int height = mapPresenter.getViewPort().getMapHeight() - 15;
mapPresenter.setSize(width, height);
}
});
leftLayout.add(shrinkBtn);
// Create the MapPresenter and add an InitializationHandler:
mapPresenter = getInjector().getMapPresenter();
mapPresenter.setSize(640, 480);
mapPresenter.getEventBus().addHandler(MapInitializationEvent.TYPE, new MyMapInitializationHandler());
// Define the whole layout:
HorizontalPanel layout = new HorizontalPanel();
layout.add(leftLayout);
DecoratorPanel mapDecorator = new DecoratorPanel();
mapDecorator.add(mapPresenter.asWidget());
layout.add(mapDecorator);
// Initialize the map, and return the layout:
mapPresenter.initialize("pure-gwt-app", "mapOsm");
return layout;
}
/**
* Map initialization handler that zooms in.
*
* @author Pieter De Graef
*/
private class MyMapInitializationHandler implements MapInitializationHandler {
public void onMapInitialized(MapInitializationEvent event) {
double scale = mapPresenter.getViewPort().getScale() * 4;
mapPresenter.getViewPort().applyScale(scale);
}
}
}