Package org.eclipse.nebula.widgets.geomap.internal

Class GeoMapHelper

java.lang.Object
org.eclipse.nebula.widgets.geomap.internal.GeoMapHelper
All Implemented Interfaces:
GeoMapHelperListener, GeoMapPositioned
public class GeoMapHelper
extends java.lang.Object
implements GeoMapPositioned, GeoMapHelperListener

License is EPL (Eclipse Public License) https://www.eclipse.org/legal/epl-v10.html. Contact at stepan.rutz@gmx.de

Version:
$Revision$

  • Field Summary

    Fields 
    Modifier and Type Field Description
    (package private) java.util.Map<TileRef,​AsyncImage> cache  
    (package private) java.util.concurrent.ThreadPoolExecutor executor  
    static int TILE_SIZE
    basically not be changed, must be the same as GeoMapUtil's TILE_SIZE
    (package private) java.util.concurrent.atomic.AtomicLong zoomStamp  

  • Constructor Summary

    Constructors 
    Constructor Description
    GeoMapHelper​(org.eclipse.swt.widgets.Display display, org.eclipse.swt.graphics.Point mapPosition, int zoom, int cacheSize)
    Initializes a new GeoMapHelper for a specific display, position, zoom level and cache size.

  • Method Summary

    Modifier and Type Method Description
    void addGeoMapHelperListener​(GeoMapHelperListener listener)
    Adds a GeoMapHelperListener that will be notified about tile updates
    void addInternalGeoMapListener​(InternalGeoMapListener listener)
    Adds an InternalGeoMapListener that will be notified about painting and cache updates
    void dispose()
    Dispose internal data
    (package private) org.eclipse.swt.widgets.Display getDisplay()  
    org.eclipse.swt.graphics.Point getMapPosition()
    Gets the position of the upper left corner of the map.
    int getMaxZoom()
    Gets the maximum supported zoom level
    int getMinZoom()
    Gets the minimum supported zoom level
    int getNumberOfTiles()  
    TileServer getTileServer()
    Gets the tile server used for fetching tiles
    int getZoom()
    Gets the current zoom level
    void paint​(org.eclipse.swt.graphics.GC gc, org.eclipse.swt.graphics.Rectangle clip, org.eclipse.swt.graphics.Point size)
    Points the map to the provided graphics context (GC), which could be the one provided in an SWT control paint request or one created for rendering an SWT Image
    (package private) void paintTile​(org.eclipse.swt.graphics.GC gc, int dx, int dy, int x, int y)  
    void removeGeoMapHelperListener​(GeoMapHelperListener listener)
    Removes a GeoMapHelperListener
    void removeInternalGeoMapListener​(InternalGeoMapListener listener)
    Removes an InternalGeoMapListener
    void setMapPosition​(int x, int y)
    Sets the position of the upper left corner of the map.
    void setTileServer​(TileServer tileServer)
    Sets the tile server used for fetching tiles
    void setZoom​(int zoom)
    Sets the current zoom level
    void tileUpdated​(TileRef tileRef)
    Notifies listener that a tile has been updated and may need (re)painting

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

  • Constructor Details

    • GeoMapHelper

      public GeoMapHelper​(org.eclipse.swt.widgets.Display display, org.eclipse.swt.graphics.Point mapPosition, int zoom, int cacheSize)
      Initializes a new GeoMapHelper for a specific display, position, zoom level and cache size.
      Parameters:
      display - the Display to create images for.
      mapPosition - initial mapPosition.
      zoom - initial map zoom
      cacheSize - initial cache size, eg number of tile-images that are kept in cache to prevent reloading from the network.

  • Method Details