/**
* @param context the enclosing MapActivity instance.
* @param attributeSet a set of attributes.
* @throws IllegalArgumentException if the context object is not an instance of {@link
* MapActivity} .
*/
public MapView(Context context, AttributeSet attributeSet) {
super(context, attributeSet);
if (!(context instanceof MapActivity)) {
throw new IllegalArgumentException("context is not an instance of MapActivity");
}
this.setWillNotDraw(true);
DisplayMetrics metrics = getResources().getDisplayMetrics();
dpi = Math.max(metrics.xdpi, metrics.ydpi);
// TODO make this dpi dependent
Tile.SIZE = 400;
MapActivity mapActivity = (MapActivity) context;
mMapViewPosition = new MapViewPosition(this);
mMapPosition = new MapPosition();
mLayerManager = new LayerManager(context);
mGLView = new GLView(context, this);
mDebugSettings = new DebugSettings();
// FIXME
MapTileLoader.setDebugSettings(mDebugSettings);
mapActivity.registerMapView(this);
LayoutParams params =
new LayoutParams(
android.view.ViewGroup.LayoutParams.MATCH_PARENT,
android.view.ViewGroup.LayoutParams.MATCH_PARENT);
addView(mGLView, params);
mLayerManager.add(0, new MapEventLayer(this));
clearMap();
redrawMap(false);
}
/**
* Sets the center of the MapView and triggers a redraw.
*
* @param geoPoint the new center point of the map.
*/
public void setCenter(GeoPoint geoPoint) {
mMapViewPosition.setMapCenter(geoPoint);
redrawMap(true);
}
/** Request to render a frame. Use this for animations. */
public void render() {
if (mClearMap) redrawMap(false);
else mGLView.requestRender();
}