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package cgeo.geocaching.maps.mapsforge;
import cgeo.geocaching.cgSettings;
import cgeo.geocaching.maps.PositionOverlay;
import cgeo.geocaching.maps.CachesOverlay;
import cgeo.geocaching.maps.ScaleOverlay;
import cgeo.geocaching.maps.OtherCachersOverlay;
import cgeo.geocaching.maps.interfaces.GeoPointImpl;
import cgeo.geocaching.maps.interfaces.MapControllerImpl;
import cgeo.geocaching.maps.interfaces.MapProjectionImpl;
import cgeo.geocaching.maps.interfaces.MapViewImpl;
import cgeo.geocaching.maps.interfaces.OnDragListener;
import cgeo.geocaching.maps.interfaces.GeneralOverlay;
import cgeo.geocaching.maps.interfaces.OverlayImpl;
import cgeo.geocaching.maps.interfaces.OverlayImpl.overlayType;
import org.mapsforge.android.maps.GeoPoint;
import org.mapsforge.android.maps.MapDatabase;
import org.mapsforge.android.maps.MapView;
import org.mapsforge.android.maps.MapViewMode;
import org.mapsforge.android.maps.Overlay;
import org.mapsforge.android.maps.Projection;
import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
public class MapsforgeMapView extends MapView implements MapViewImpl {
private GestureDetector gestureDetector;
private OnDragListener onDragListener;
public MapsforgeMapView(Context context, AttributeSet attrs) {
super(context, attrs);
gestureDetector = new GestureDetector(context, new GestureListener());
}
@Override
public void draw(Canvas canvas) {
try {
if (getMapZoomLevel() >= 22) { // to avoid too close zoom level (mostly on Samsung Galaxy S series)
getController().setZoom(22);
}
super.draw(canvas);
} catch (Exception e) {
Log.e(cgSettings.tag, "cgMapView.draw: " + e.toString());
}
}
@Override
public void displayZoomControls(boolean takeFocus) {
// nothing to do here
}
@Override
public MapControllerImpl getMapController() {
return new MapsforgeMapController(getController(), getMaxZoomLevel());
}
@Override
public GeoPointImpl getMapViewCenter() {
GeoPoint point = getMapCenter();
return new MapsforgeGeoPoint(point.getLatitudeE6(), point.getLongitudeE6());
}
@Override
public void addOverlay(OverlayImpl ovl) {
getOverlays().add((Overlay) ovl);
}
@Override
public void clearOverlays() {
getOverlays().clear();
}
@Override
public MapProjectionImpl getMapProjection() {
return new MapsforgeMapProjection(getProjection());
}
@Override
public CachesOverlay createAddMapOverlay(cgSettings settings,
Context context, Drawable drawable, boolean fromDetailIntent) {
MapsforgeCacheOverlay ovl = new MapsforgeCacheOverlay(settings, context, drawable, fromDetailIntent);
getOverlays().add(ovl);
return ovl.getBase();
}
@Override
public OtherCachersOverlay createAddUsersOverlay(Context context, Drawable markerIn) {
MapsforgeOtherCachersOverlay ovl = new MapsforgeOtherCachersOverlay(context, markerIn);
getOverlays().add(ovl);
return ovl.getBase();
}
@Override
public PositionOverlay createAddPositionOverlay(Activity activity,
cgSettings settingsIn) {
MapsforgeOverlay ovl = new MapsforgeOverlay(activity, settingsIn, overlayType.PositionOverlay);
getOverlays().add(ovl);
return (PositionOverlay) ovl.getBase();
}
@Override
public ScaleOverlay createAddScaleOverlay(Activity activity,
cgSettings settingsIn) {
MapsforgeOverlay ovl = new MapsforgeOverlay(activity, settingsIn, overlayType.ScaleOverlay);
getOverlays().add(ovl);
return (ScaleOverlay) ovl.getBase();
}
@Override
public int getLatitudeSpan() {
int span = 0;
Projection projection = getProjection();
if (projection != null && getHeight() > 0) {
GeoPoint low = projection.fromPixels(0, 0);
GeoPoint high = projection.fromPixels(0, getHeight());
if (low != null && high != null) {
span = Math.abs(high.getLatitudeE6() - low.getLatitudeE6());
}
}
return span;
}
@Override
public int getLongitudeSpan() {
int span = 0;
Projection projection = getProjection();
if (projection != null && getWidth() > 0) {
GeoPoint low = projection.fromPixels(0, 0);
GeoPoint high = projection.fromPixels(getWidth(), 0);
if (low != null && high != null) {
span = Math.abs(high.getLongitudeE6() - low.getLongitudeE6());
}
}
return span;
}
@Override
public void preLoad() {
// Nothing to do here
}
@Override
public int getMapZoomLevel() {
return getZoomLevel() + 1;
}
@Override
public boolean needsScaleOverlay() {
return false;
}
@Override
public void setBuiltinScale(boolean b) {
setScaleBar(b);
}
@Override
public void setMapSource(cgSettings settings) {
switch (settings.mapSource) {
case mapsforgeOsmarender:
setMapViewMode(MapViewMode.OSMARENDER_TILE_DOWNLOAD);
break;
case mapsforgeCycle:
setMapViewMode(MapViewMode.OPENCYCLEMAP_TILE_DOWNLOAD);
break;
case mapsforgeOffline:
if (MapDatabase.isValidMapFile(settings.getMapFile())) {
setMapViewMode(MapViewMode.CANVAS_RENDERER);
super.setMapFile(settings.getMapFile());
} else {
setMapViewMode(MapViewMode.MAPNIK_TILE_DOWNLOAD);
}
break;
default:
setMapViewMode(MapViewMode.MAPNIK_TILE_DOWNLOAD);
}
}
@Override
public void repaintRequired(GeneralOverlay overlay) {
try {
MapsforgeOverlay ovl = (MapsforgeOverlay) overlay.getOverlayImpl();
if (ovl != null) {
ovl.requestRedraw();
}
} catch (Exception e) {
Log.e(cgSettings.tag, "mfMapView.repaintRequired: " + e.toString());
}
}
@Override
public void setOnDragListener(OnDragListener onDragListener) {
this.onDragListener = onDragListener;
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
gestureDetector.onTouchEvent(ev);
return super.onTouchEvent(ev);
}
private class GestureListener extends SimpleOnGestureListener {
@Override
public boolean onDoubleTap(MotionEvent e) {
if (onDragListener != null) {
onDragListener.onDrag();
}
return true;
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2,
float distanceX, float distanceY) {
if (onDragListener != null) {
onDragListener.onDrag();
}
return super.onScroll(e1, e2, distanceX, distanceY);
}
}
}
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