import org.gvsig.andami.PluginServices;
import org.gvsig.andami.plugins.Extension;
import org.gvsig.app.project.documents.view.gui.DefaultViewPanel;
import org.gvsig.fmap.mapcontrol.MapControlLocator;
import org.gvsig.fmap.mapcontrol.MapControlManager;
import org.gvsig.fmap.mapcontrol.impl.DefaultMapControlManager;
import org.gvsig.utils.console.JConsole;
import es.udc.lbd.giseiel.editing.CADExtension;
import es.udc.lbd.giseiel.editing.EditionUtilities;
import es.udc.lbd.giseiel.editing.gui.cad.snapping.EIELFinalPointSnapper;
import es.udc.lbd.giseiel.editing.gui.cad.snapping.EIELNearestPointSnapper;

/**
 * Extensión que gestiona la activación y desactivación de los snappers
 *
 * @author Jose Ignacio Lamas
 *         Leticia Riestra Ainsua
 */
public class SnappersExtension extends Extension {

	private boolean activated;

	/**
	 * @see com.iver.andami.plugins.IExtension#initialize()
	 */
	public void initialize() {
		activated = true;
		
		if (MapControlLocator.getMapControlManager() == null){
    		MapControlLocator.registerMapControlManager(DefaultMapControlManager.class);
    	}
    	MapControlManager mapControlManager = MapControlLocator.getMapControlManager();
   	
    	//Borramos la lista de snapper para así poder poner los nuestros arriba con la 
    	//mayor prioridad
    	((DefaultMapControlManager)mapControlManager).clearSnappers();
    	
    	//Le añadimos los snapper que queremos
    	mapControlManager.registerSnapper("EIELFinalPointSnapper", EIELFinalPointSnapper.class);
    	mapControlManager.registerSnapper("EIELNearestPointSnapper", EIELNearestPointSnapper.class);
    	mapControlManager.registerSnapper("FinalPointSnapper", FinalPointSnapper.class);
    	mapControlManager.registerSnapper("NearestPointSnapper", NearestPointSnapper.class);
    	mapControlManager.registerSnapper("PixelSnapper", PixelSnapper.class);
    	mapControlManager.registerSnapper("CentralPointSnapper", CentralPointSnapper.class);
    	mapControlManager.registerSnapper("QuadrantPointSnapper", QuadrantPointSnapper.class);
		//mapControlManager.registerSnapper("InsertPointSnapper", new InsertPointSnapper.class);
    	mapControlManager.registerSnapper("IntersectionPointSnapper", IntersectionPointSnapper.class);
    	mapControlManager.registerSnapper("MediumPointSnapper", MediumPointSnapper.class);
    	mapControlManager.registerSnapper("PerpendicularPointSnapper", PerpendicularPointSnapper.class);
    	mapControlManager.registerSnapper("TangentPointSnapper", TangentPointSnapper.class);
    	
	}
	
	/**
	 * @see com.iver.andami.plugins.IExtension#execute(java.lang.String)
	 */
	public void execute(String s) {
		CADExtension.initFocus();

		if (s.equals("_snappers")) {
			
			if (MapControlLocator.getMapControlManager() == null){
	    		MapControlLocator.registerMapControlManager(DefaultMapControlManager.class);
	    	}
	    	MapControlManager mapControlManager = MapControlLocator.getMapControlManager();
	    	
			String message = new String();

			if(activated){
			   	//Borramos la lista de snapper 
		    	((DefaultMapControlManager)mapControlManager).clearSnappers();
				
				activated = false;
				message = PluginServices.getText(this, "snappers_desactivated");
			}else{
				//Borramos la lista de snapper para así poder poner los nuestros arriba con la 
		    	//mayor prioridad
		    	((DefaultMapControlManager)mapControlManager).clearSnappers();
		    	
		    	//Le añadimos los snapper que queremos
		    	mapControlManager.registerSnapper("EIELFinalPointSnapper", EIELFinalPointSnapper.class);
		    	mapControlManager.registerSnapper("EIELNearestPointSnapper", EIELNearestPointSnapper.class);
		    	mapControlManager.registerSnapper("FinalPointSnapper", FinalPointSnapper.class);
				mapControlManager.registerSnapper("NearestPointSnapper", NearestPointSnapper.class);
				mapControlManager.registerSnapper("PixelSnapper", PixelSnapper.class);
				mapControlManager.registerSnapper("CentralPointSnapper", CentralPointSnapper.class);
				mapControlManager.registerSnapper("QuadrantPointSnapper", QuadrantPointSnapper.class);
				//mapControlManager.registerSnapper("InsertPointSnapper", new InsertPointSnapper.class);
				mapControlManager.registerSnapper("IntersectionPointSnapper", IntersectionPointSnapper.class);
				mapControlManager.registerSnapper("MediumPointSnapper", MediumPointSnapper.class);
				mapControlManager.registerSnapper("PerpendicularPointSnapper", PerpendicularPointSnapper.class);
				mapControlManager.registerSnapper("TangentPointSnapper", TangentPointSnapper.class);
		
		   		activated = true;
				message = PluginServices.getText(this, "snappers_activated");
			}
			
			//Escribimos en la consola si esta activado el snapper
			if (PluginServices.getMDIManager().getActiveWindow() instanceof DefaultViewPanel)
			{
				DefaultViewPanel vista = (DefaultViewPanel) PluginServices.getMDIManager().getActiveWindow();
				vista.getConsolePanel().addText("\n" +message, JConsole.INSERT);	
			}
		}
			
	}
	
	/**
	 * @see com.iver.andami.plugins.IExtension#isEnabled()
	 */
	public boolean isEnabled() {

		if (EditionUtilities.getEditionStatus() == EditionUtilities.EDITION_STATUS_ONE_VECTORIAL_LAYER_ACTIVE_AND_EDITABLE) {
			if (CADExtension.getEditionManager().getActiveLayerEdited()==null){
				return false;
			}
			return true;
		}		

		return false;
	}

	/**
	 * @see com.iver.andami.plugins.IExtension#isVisible()
	 */
	public boolean isVisible() {
		if (EditionUtilities.getEditionStatus() == EditionUtilities.EDITION_STATUS_ONE_VECTORIAL_LAYER_ACTIVE_AND_EDITABLE)
			return true;
		return false;
	}
}