| gvSIG desktop 1

/*

 * Created on 10-abr-2006

 *

 * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

*

* $Id: 

* $Log: 

*/

package org.gvsig.fmap.tools.behavior;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Point;

import java.awt.Rectangle;

import java.awt.Stroke;

import java.awt.event.MouseEvent;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import org.gvsig.fmap.core.FGeometryUtil;

import org.gvsig.fmap.tools.listeners.VectorListener;

import com.iver.cit.gvsig.fmap.ViewPort;

import com.iver.cit.gvsig.fmap.core.FPolyline2D;

import com.iver.cit.gvsig.fmap.core.FShape;

import com.iver.cit.gvsig.fmap.core.GeneralPathX;

import com.iver.cit.gvsig.fmap.tools.BehaviorException;

import com.iver.cit.gvsig.fmap.tools.Behavior.Behavior;

import com.iver.cit.gvsig.fmap.tools.Events.MoveEvent;

import com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener;

/**

 * Behavior to digitize two points vectors in mapcontrol

 * @author azabala

 */

public class VectorBehavior extends Behavior {

	private Point2D m_FirstPoint;

	private Point2D m_LastPoint;

	private VectorListener listener;

	protected int lenghtArrow = 15;

	protected int widthArrow = 10;

	protected Color arrowColor = java.awt.Color.RED;

	protected int rgb;

	private Stroke stroke;

	protected static BufferedImage img = new BufferedImage(1, 1,

			BufferedImage.TYPE_INT_ARGB);

	protected static Rectangle rect = new Rectangle(0, 0, 1, 1);

	/**

	 * Crea un nuevo RectangleBehavior.

	 *

	 * @param zili listener.

	 */

	public VectorBehavior(VectorListener zili) {

		listener = zili;

		Graphics2D g2 = img.createGraphics();

		drawInsideRectangle(g2, g2.getTransform(), rect);

		rgb = img.getRGB(0, 0);

	}

	private void drawInsideRectangle(Graphics2D g, AffineTransform scale,

			Rectangle r) {

		FShape shp;

		AffineTransform mT = new AffineTransform();

		mT.setToIdentity();

		Rectangle rect = mT.createTransformedShape(r).getBounds();

		GeneralPathX line = new GeneralPathX();

		line.moveTo(rect.x, rect.y + (rect.height / 2));

		line.curveTo(rect.x + (rect.width / 3),

			rect.y + (2 * rect.height),

			rect.x + ((2 * rect.width) / 3), rect.y - rect.height,

			rect.x + rect.width, rect.y + (rect.height / 2));

		shp = new FPolyline2D(line);

		drawLineWithArrow(g, mT, shp);

	}

	/**

	 * @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#paintComponent(java.awt.Graphics)

	 */

	public void paintComponent(Graphics g) {

		BufferedImage img = getMapControl().getImage();

		g.drawImage(img, 0, 0, null);

		g.setColor(Color.black);

		g.setXORMode(Color.white);

		// Dibujamos el actual

		if ((m_FirstPoint != null) && (m_LastPoint != null)) {

			GeneralPathX line = new GeneralPathX();			

			line.moveTo(m_FirstPoint.getX(), m_FirstPoint.getY());

			line.lineTo(m_LastPoint.getX(), m_LastPoint.getY());

			FPolyline2D shp = new FPolyline2D(line);

			drawLineWithArrow((Graphics2D)g, getMapControl().getViewPort().getAffineTransform(), shp);

		}

		g.setPaintMode();

	}

	/**

	 * Reimplementaci?n del m?todo mousePressed de Behavior.

	 *

	 * @param e MouseEvent

	 */

	public void mousePressed(MouseEvent e) {

//		if (e.getButton() == MouseEvent.BUTTON1) {

			m_FirstPoint = e.getPoint();

			getMapControl().repaint();

//		}

		if (listener.cancelDrawing()) {

			getMapControl().cancelDrawing();

			getMapControl().repaint();

		}

	}

	/**

	 * Reimplementaci?n del m?todo mouseReleased de Behavior.

	 *

	 * @param e MouseEvent

	 *

	 * @throws BehaviorException Excepci?n lanzada cuando el Behavior.

	 */

	public void mouseReleased(MouseEvent e) throws BehaviorException {

	    if (m_FirstPoint == null) return;

		Point2D p1;

		Point2D p2;

		Point pScreen = e.getPoint();

		ViewPort vp = getMapControl().getMapContext().getViewPort();

		p1 = vp.toMapPoint(m_FirstPoint);

		p2 = vp.toMapPoint(pScreen);

//		if (e.getButton() == MouseEvent.BUTTON1) {

			//	Fijamos el nuevo extent

			Rectangle2D.Double r = new Rectangle2D.Double();

			r.setFrameFromDiagonal(p1, p2);

			MoveEvent event = new MoveEvent(m_FirstPoint, e.getPoint(), e);

			listener.vector(event);

//		}

		m_FirstPoint = null;

		m_LastPoint = null;

	}

	/**

	 * Reimplementaci?n del m?todo mouseDragged de Behavior.

	 *

	 * @param e MouseEvent

	 */

	public void mouseDragged(MouseEvent e) {

		m_LastPoint = e.getPoint();

		getMapControl().repaint();

	}

	/**

	 * @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#setListener(com.iver.cit.gvsig.fmap.tools.ToolListener)

	 */

	public void setListener(ToolListener listener) {

		this.listener = (VectorListener) listener;

	}

	/**

	 * @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#getListener()

	 */

	public ToolListener getListener() {

		return listener;

	}

	private void drawLineWithArrow(Graphics2D g, AffineTransform affineTransform, FShape shp){

		FGeometryUtil.drawLineWithArrow(g, affineTransform, shp, arrowColor, stroke, lenghtArrow, widthArrow);

	}

}

/*

 * Created on 10-abr-2006

 *

 * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

*

* $Id: 

* $Log: 

*/

package org.gvsig.fmap.tools.listeners;

import com.iver.cit.gvsig.fmap.tools.BehaviorException;

import com.iver.cit.gvsig.fmap.tools.Events.MoveEvent;

import com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener;

public interface VectorListener extends ToolListener {

	/**

	 * Invocado cuando el usuario digitaliza un vector de dos puntos en la vista.

	 *

	 * @param event vector.

	 *

	 * @throws BehaviorException

	 */

	public void vector(MoveEvent event) throws BehaviorException;

}

/*

 * Created on 10-abr-2006

 *

 * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

*

* $Id: 

* $Log: 

*/

package org.gvsig.fmap.tools;

import java.awt.Cursor;

import java.awt.geom.Point2D;

import org.gvsig.fmap.tools.listeners.VectorListener;

import org.gvsig.referencing.DisactivableMappedPosition;

import org.gvsig.referencing.MappedPositionContainer;

import org.gvsig.referencing.ReferencingUtil;

import org.opengis.spatialschema.geometry.DirectPosition;

import com.iver.cit.gvsig.fmap.MapControl;

import com.iver.cit.gvsig.fmap.ViewPort;

import com.iver.cit.gvsig.fmap.tools.BehaviorException;

import com.iver.cit.gvsig.fmap.tools.Events.MoveEvent;

/**

 * Vector listener impl that creates vector errors to compute vectorial layers

 * transformations.

 * 

 * For each digitized vector error in screen, it creates a geotools MappedPosition

 * instance.

 * */

public class VectorListenerImpl implements VectorListener {

//	private final Image img = new ImageIcon(MapControl.class.

//												getResource("images/PointSelectCursor.gif")).

//												getImage();

//	private Cursor cur = Toolkit.getDefaultToolkit().createCustomCursor(img,

//													new Point(16, 16), "");

	private Cursor cur = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);

	/**

	 * MapControl creator of digitizing events.

	 */

	protected MapControl mapCtrl;

	/**

	 * Collection of existing digitized links, to add new vector error.

	 */

	MappedPositionContainer linksList;

	public VectorListenerImpl(MapControl mapCtrl, MappedPositionContainer linksList) {

		super();

		this.mapCtrl = mapCtrl;

		this.linksList = linksList;

	}

	public void vector(MoveEvent event) throws BehaviorException {

		ViewPort vp = mapCtrl.getMapContext().getViewPort();

		Point2D from = vp.toMapPoint(event.getFrom());

		Point2D to = vp.toMapPoint(event.getTo());

		ReferencingUtil referencing = ReferencingUtil.getInstance();

		//TODO Ver como pasar a GeoAPI la proyeccion del mapControl (libJCRS)	

		//de momento estamos pasando null

		DirectPosition source = 

			referencing.create(new double[]{from.getX(), from.getY()}, null);

		DirectPosition destination = 

			referencing.create(new double[]{to.getX(), to.getY()}, null);

//		MappedPosition mappedPosition = 

//			new MappedPosition(source, destination);

		DisactivableMappedPosition mappedPosition

			= new DisactivableMappedPosition(source, destination);

		this.linksList.addMappedPosition(mappedPosition);

	}

	public boolean cancelDrawing() {

		return false;

	}

	public Cursor getCursor() {

		return cur;

	}

}