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/*
@ITMillApache2LicenseForJavaFiles@
*/
package com.vaadin.demo.reservation;
import java.awt.geom.Point2D;
import java.util.Collection;
import java.util.Iterator;
import com.vaadin.data.Container;
import com.vaadin.data.Item;
import com.vaadin.data.Property;
import com.vaadin.data.util.IndexedContainer;
import com.vaadin.terminal.PaintException;
import com.vaadin.terminal.PaintTarget;
import com.vaadin.terminal.Sizeable;
import com.vaadin.ui.AbstractComponent;
@SuppressWarnings("serial")
public class GoogleMap extends AbstractComponent implements Sizeable,
Container.Viewer {
private final String TAG_MARKERS = "markers";
private final String TAG_MARKER = "marker";
private int zoomLevel = 15;
private Point2D.Double mapCenter;
private Container dataSource;
private Object itemMarkerHtmlPropertyId = new Object();
private Object itemMarkerXPropertyId = new Object();
private Object itemMarkerYPropertyId = new Object();
@Override
public String getTag() {
return "googlemap";
}
@Override
public void paintContent(PaintTarget target) throws PaintException {
super.paintContent(target);
// Add size info as variables
if (getHeight() > -1) {
target.addVariable(this, "height", getHeight()
+ UNIT_SYMBOLS[getHeightUnits()]);
}
if (getWidth() > -1) {
target.addVariable(this, "width", getWidth()
+ UNIT_SYMBOLS[getWidthUnits()]);
}
if (null != mapCenter) {
target.addAttribute("centerX", mapCenter.getX());
target.addAttribute("centerY", mapCenter.getY());
}
target.addAttribute("zoom", zoomLevel);
if (dataSource != null) {
target.startTag(TAG_MARKERS);
final Collection itemIds = dataSource.getItemIds();
for (final Iterator it = itemIds.iterator(); it.hasNext();) {
final Object itemId = it.next();
final Item item = dataSource.getItem(itemId);
Property p = item.getItemProperty(getItemMarkerXPropertyId());
final Double x = (Double) (p != null ? p.getValue() : null);
p = item.getItemProperty(getItemMarkerYPropertyId());
final Double y = (Double) (p != null ? p.getValue() : null);
if (x == null || y == null) {
continue;
}
target.startTag(TAG_MARKER);
target.addAttribute("x", x.doubleValue());
target.addAttribute("y", y.doubleValue());
p = item.getItemProperty(getItemMarkerHtmlPropertyId());
final String h = (String) (p != null ? p.getValue() : null);
target.addAttribute("html", h);
target.endTag(TAG_MARKER);
}
target.endTag(TAG_MARKERS);
}
}
public void setZoomLevel(int zoomLevel) {
this.zoomLevel = zoomLevel;
requestRepaint();
}
public int getZoomLevel() {
return zoomLevel;
}
public void setMapCenter(Point2D.Double center) {
mapCenter = center;
}
public Point2D.Double getMapCenter() {
return mapCenter;
}
// Container.Viewer methods:
public Container getContainerDataSource() {
return dataSource;
}
public void setContainerDataSource(Container newDataSource) {
dataSource = newDataSource;
requestRepaint();
}
// Item methods
public Object getItemMarkerHtmlPropertyId() {
return itemMarkerHtmlPropertyId;
}
public void setItemMarkerHtmlPropertyId(Object itemMarkerHtmlPropertyId) {
this.itemMarkerHtmlPropertyId = itemMarkerHtmlPropertyId;
requestRepaint();
}
public Object getItemMarkerXPropertyId() {
return itemMarkerXPropertyId;
}
public void setItemMarkerXPropertyId(Object itemMarkerXPropertyId) {
this.itemMarkerXPropertyId = itemMarkerXPropertyId;
requestRepaint();
}
public Object getItemMarkerYPropertyId() {
return itemMarkerYPropertyId;
}
public void setItemMarkerYPropertyId(Object itemMarkerYPropertyId) {
this.itemMarkerYPropertyId = itemMarkerYPropertyId;
requestRepaint();
}
// Marker add
public Object addMarker(String html, Point2D.Double location) {
if (location == null) {
throw new IllegalArgumentException("Location must be non-null");
}
if (dataSource == null) {
initDataSource();
}
final Object markerId = dataSource.addItem();
if (markerId == null) {
return null;
}
final Item marker = dataSource.getItem(markerId);
Property p = marker.getItemProperty(getItemMarkerXPropertyId());
p.setValue(new Double(location.x));
p = marker.getItemProperty(getItemMarkerYPropertyId());
p.setValue(new Double(location.y));
p = marker.getItemProperty(getItemMarkerHtmlPropertyId());
p.setValue(html);
requestRepaint();
return markerId;
}
public void removeMarker(Object markerId) {
if (dataSource != null) {
dataSource.removeItem(markerId);
requestRepaint();
}
}
public Item getMarkerItem(Object markerId) {
if (dataSource != null) {
return dataSource.getItem(markerId);
} else {
return null;
}
}
// dataSource init helper:
private void initDataSource() {
dataSource = new IndexedContainer();
dataSource.addContainerProperty(itemMarkerHtmlPropertyId, String.class,
null);
dataSource.addContainerProperty(itemMarkerXPropertyId, Double.class,
new Double(0));
dataSource.addContainerProperty(itemMarkerYPropertyId, Double.class,
new Double(0));
}
public void clear() {
setContainerDataSource(null);
}
}
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