/** creates marker for tweet and its to map */
private void addTweet(Tweet t) {
if (t.getText() == null) {
// ignore tweets without text
return;
}
GeoCoordinate gc = t.getUserCoordinate();
boolean addTweet = true;
cleanOldest();
if (map.getZoomLevel() > 0) {
GeoBoundingBox gbb =
new GeoBoundingBox(
map.pixelToGeo(new Point(0, 0)),
map.pixelToGeo(new Point(map.getWidth(), map.getHeight())));
addTweet = gbb.contains(gc);
}
if (addTweet) {
MapStandardMarker msm =
mapFactory.createStandardMarker(gc, 100, "", MapStandardMarker.BALLOON);
msm.setColor(MARKER_COLOR);
map.addMapObject(msm);
addedTweets.addData(msm, t);
tweetAge.put(msm, new Long(t.getCreatedTime()));
repaint();
}
}
/**
* Adds marker to center of the screen and returns its coordinate
*
* @return coordinate added
*/
private GeoCoordinate selectPosition() {
Point center = new Point(map.getWidth() / 2, map.getHeight() / 2);
GeoCoordinate gc = map.pixelToGeo(center);
if (marker == null) {
// create new marker
marker = mapFactory.createStandardMarker(gc, 10, null, MapStandardMarker.BALLOON);
map.addMapObject(marker);
} else {
// move existing marker
marker.setCoordinate(gc);
}
return gc;
}