svn-gvsig-desktop / tags / v2_0_0_Build_2058 / libraries / libFMap_controls / src / org / gvsig / fmap / mapcontrol / tools / Behavior / CircleBehavior.java @ 39241
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package org.gvsig.fmap.mapcontrol.tools.Behavior; |
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import java.awt.Color; |
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import java.awt.Rectangle; |
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import java.awt.event.MouseEvent; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.awt.image.BufferedImage; |
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import org.gvsig.fmap.geom.primitive.Arc; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontrol.MapControlDrawer; |
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import org.gvsig.fmap.mapcontrol.tools.BehaviorException; |
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import org.gvsig.fmap.mapcontrol.tools.Events.MeasureEvent; |
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import org.gvsig.fmap.mapcontrol.tools.Listeners.CircleListener; |
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import org.gvsig.fmap.mapcontrol.tools.Listeners.PolylineListener; |
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import org.gvsig.fmap.mapcontrol.tools.Listeners.ToolListener; |
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/**
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* <p>Behavior that allows user to draw a circle on the image of the associated
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* <code>MapControl</code> using a {@link PolylineListener PolylineListener}.</p>
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*
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* @author Laura
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* @author Pablo Piqueras Bartolom?
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*/
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public class CircleBehavior extends Behavior { |
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/**
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* First point set, that represents the center of the circle.
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*/
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protected Point2D m_FirstPoint; |
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/**
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* Second point set, that permits calculate the radius of the circle.
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*/
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protected Point2D m_LastPoint; |
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/**
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* Tool listener used to work with the <code>MapControl</code> object.
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*
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* @see #getListener()
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* @see #setListener(ToolListener)
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*/
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private CircleListener listener;
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/**
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* Determines if user setting the radius of the circle (with one click of the button 1 of the mouse), or not.
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*/
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protected boolean isClicked = false; |
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/**
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* <p>Creates a new behavior for selecting circle areas.</p>
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*
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* @param zili listener used to permit this object to work with the associated <code>MapControl</code>
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*/
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public CircleBehavior(CircleListener zili) {
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listener = zili; |
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#paintComponent(java.awt.Graphics)
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*/
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public void paintComponent(MapControlDrawer mapControlDrawer) { |
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double radio;
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BufferedImage img = getMapControl().getImage();
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mapControlDrawer.drawImage(img, 0, 0); |
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mapControlDrawer.setColor(Color.black);
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if ((m_FirstPoint != null) && (m_LastPoint != null)) { |
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ViewPort vp = getMapControl().getMapContext().getViewPort(); |
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Point2D p1 = vp.toMapPoint(m_FirstPoint);
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Point2D p2 = vp.toMapPoint(m_LastPoint);
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radio = p1.distance(p2); |
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if(radio!=0.0){ |
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Arc arc = null;
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arc = createArc(p1.getX(), p1.getY(), |
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radio, 0, Math.PI*2); |
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if (arc != null) { |
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mapControlDrawer.draw(arc); |
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} |
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} |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#mousePressed(java.awt.event.MouseEvent)
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*/
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public void mousePressed(MouseEvent e) { |
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if (e.getButton() == MouseEvent.BUTTON1) { |
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m_FirstPoint = e.getPoint(); |
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isClicked = true;
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getMapControl().repaint(); |
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} |
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if (listener.cancelDrawing()) {
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getMapControl().cancelDrawing(); |
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isClicked = false;
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getMapControl().repaint(); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#mouseReleased(java.awt.event.MouseEvent)
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*/
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public void mouseReleased(MouseEvent e) throws BehaviorException { |
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m_FirstPoint = null;
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m_LastPoint = null;
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isClicked = false;
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#mouseDragged(java.awt.event.MouseEvent)
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*/
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public void mouseDragged(MouseEvent e) throws BehaviorException { |
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mouseMoved(e); |
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#mouseMoved(java.awt.event.MouseEvent)
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*/
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public void mouseMoved(MouseEvent e) throws BehaviorException { |
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if (m_FirstPoint == null) return; |
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m_LastPoint = e.getPoint(); |
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ViewPort vp = getMapControl().getMapContext().getViewPort(); |
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Point2D p1 = vp.toMapPoint(m_FirstPoint);
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Point2D p2 = vp.toMapPoint(m_LastPoint);
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// Fijamos el nuevo extent
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Rectangle2D.Double r = new Rectangle2D.Double(); |
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r.setFrameFromDiagonal(p1, p2); |
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Rectangle2D rectPixel = new Rectangle(); |
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rectPixel.setFrameFromDiagonal(m_FirstPoint, m_LastPoint); |
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Double[] x = new Double[2]; |
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Double[] y = new Double[2]; |
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x[0] = new Double(p1.getX()); |
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x[1] = new Double(p2.getX()); |
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y[0] = new Double(p1.getY()); |
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y[1] = new Double(p2.getY()); |
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MeasureEvent event = new MeasureEvent(x, y, e);
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listener.circle(event); |
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getMapControl().repaint(); |
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} |
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/**
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* <p>Sets a tool listener to work with the <code>MapControl</code> using this behavior.</p>
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*
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* @param listener a <code>CircleListener</code> object for this behavior
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*/
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public void setListener(ToolListener listener) { |
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this.listener = (CircleListener)listener;
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#getListener()
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*/
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public ToolListener getListener() {
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return listener;
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} |
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} |
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