svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.fmap.control / src / main / java / org / gvsig / fmap / mapcontrol / tools / Behavior / MoveBehavior.java @ 41974
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.fmap.mapcontrol.tools.Behavior; |
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import java.awt.AlphaComposite; |
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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.image.BufferedImage; |
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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.MoveEvent; |
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import org.gvsig.fmap.mapcontrol.tools.Listeners.PanListener; |
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import org.gvsig.fmap.mapcontrol.tools.Listeners.ToolListener; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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* <p>
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* Behavior that permits user to move the image of the associated
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* <code>MapControl</code> using a {@link PanListener PanListener}.
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* </p>
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*
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* @author Vicente Caballero Navarro
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* @author Pablo Piqueras Bartolom?
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*/
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public class MoveBehavior extends Behavior { |
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private static final Logger logger = LoggerFactory.getLogger(MoveBehavior.class); |
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/**
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* First point of the path in image coordinates.
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*/
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protected Point2D m_FirstPoint; |
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/**
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* Last point of the path in image coordinates.
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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 PanListener listener;
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/**
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* <p>
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* Creates a new behavior for moving the mouse.
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* </p>
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*
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* @param pli
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* listener used to permit this object to work with the
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* associated <code>MapControl</code>
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* @param mouseButton
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*/
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public MoveBehavior(PanListener pli, int mouseButton) { |
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super(mouseButton);
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listener = pli; |
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} |
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public MoveBehavior(PanListener pli) {
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this(pli,BUTTON_LEFT);
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} |
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@Override
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public void paintComponent(MapControlDrawer renderer) { |
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if( ! this.isMyButton() ) { |
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return;
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} |
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super.paintComponent(renderer);
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BufferedImage image = getMapControl().getImage();
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if (image != null) { |
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if ((m_FirstPoint != null) && (m_LastPoint != null)) { |
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renderer.setComposite(AlphaComposite.getInstance(
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AlphaComposite.SRC_OVER, 0.5f)); |
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renderer.drawImage(image, |
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(int) (m_LastPoint.getX() - m_FirstPoint.getX()),
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(int) (m_LastPoint.getY() - m_FirstPoint.getY()));
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} |
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} |
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} |
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@Override
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public void mousePressed(MouseEvent e) { |
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if (this.isMyButton(e)) { |
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m_FirstPoint = e.getPoint(); |
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if (listener.cancelDrawing()) {
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getMapControl().cancelDrawing(); |
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} |
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} |
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} |
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@Override
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public void mouseReleased(MouseEvent e) throws BehaviorException { |
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if (this.isMyButton(e) && m_FirstPoint != null) { |
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doMouseReleased(e); |
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} |
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} |
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protected void doMouseReleased(MouseEvent e) throws BehaviorException { |
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MoveEvent event = new MoveEvent(m_FirstPoint, e.getPoint(), e);
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listener.move(event); |
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getMapControl().drawMap(true);
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m_FirstPoint = null;
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} |
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@Override
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public void mouseDragged(MouseEvent e) { |
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if (this.isMyButton(e)) { |
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m_LastPoint = e.getPoint(); |
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getMapControl().repaint(); |
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} |
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} |
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/**
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* <p>
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* Sets a tool listener to work with the <code>MapControl</code> using this
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* behavior.
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* </p>
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*
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* @param listener
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* a <code>PanListener</code> object for this behavior
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*/
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public void setListener(ToolListener listener) { |
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this.listener = (PanListener) listener;
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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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} |