svn-gvsig-desktop / trunk / extensions / extRasterTools-SE / src / org / gvsig / rastertools / geolocation / behavior / ScaleBehavior.java @ 22529
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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) 2006 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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package org.gvsig.rastertools.geolocation.behavior; |
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import java.awt.AlphaComposite; |
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import java.awt.Cursor; |
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import java.awt.Graphics; |
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import java.awt.Graphics2D; |
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import java.awt.Image; |
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import java.awt.event.MouseEvent; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.NoninvertibleTransformException; |
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import java.awt.geom.Point2D; |
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import javax.swing.ImageIcon; |
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import org.gvsig.raster.datastruct.Extent; |
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import org.gvsig.raster.util.RasterToolsUtil; |
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import com.iver.cit.gvsig.fmap.ViewPort; |
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import com.iver.cit.gvsig.fmap.tools.BehaviorException; |
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import com.iver.cit.gvsig.fmap.tools.Listeners.RectangleListener; |
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import com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener; |
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/**
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* Comportamiento que se aplica a la herramienta de scale. El cursor del rat?n cambiar? cuando
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* se encuentre en los bordes del raster, permitiendo el escalar la imagen al pinchar y
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* arrastrar.
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*
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* Nacho Brodin (nachobrodin@gmail.com)
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*
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*/
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public class ScaleBehavior extends TransformationBehavior { |
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//N?mero de pixeles de ancho del borde donde el cursor se activar?. Son pixeles del canvas de la vista.
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//De esta forma da igual la escala a la que est? la imagen siempre tiene la misma precisi?n
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private int PX_SELEC_BASE = 6; |
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private int LONG_CORNER_BASE = 12; |
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private int PX_SELEC = PX_SELEC_BASE; |
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private int LONG_CORNER = LONG_CORNER_BASE; |
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private RectangleListener listener;
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private final Image iconHoriz = new ImageIcon(getClass().getClassLoader().getResource( |
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"images/FlechaHorizCursor.gif")).getImage();
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private final Image iconVert = new ImageIcon(getClass().getClassLoader().getResource( |
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"images/FlechaVertCursor.gif")).getImage();
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private final Image iconInclDer = new ImageIcon(getClass().getClassLoader().getResource( |
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"images/FlechaInclDerCursor.gif")).getImage();
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private final Image iconInclIzq = new ImageIcon(getClass().getClassLoader().getResource( |
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"images/FlechaInclIzqCursor.gif")).getImage();
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/**
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* Variable que si est? a true permite que se pinte el marco de la imagen. Se activa al
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* comenzar el redimensionado y se desactiva al terminar
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*/
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private boolean isResizable = false; |
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/**
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* Escala entre la imagen inicial y la final. Esta es la que sea aplicar? al raster visualizado al
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* terminar la operaci?n de reescalado. Esta podemos conocerla cuando levantamos el bot?n
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* del rat?n dividiendo el nuevo ancho por el inicial
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*/
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private double escale = 1D; |
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/**
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* Lista de flags de redimensionado para cada lado del raster
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* [0]-arriba
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* [1]-abajo
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* [2]-derecha
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* [3]-izquierda
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* [4]-esquina superior derecha
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* [5]-esquina superior izquierda
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* [6]-esquina inferior derecha
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* [7]-esquina inferior izquierda
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*/
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private boolean[] sideActive = {false, false, false, false, false, false, false, false}; |
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private boolean init = false; |
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private Point2D tmpLr, tmpUl; |
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private double initWidth, endWidth; |
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/**
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* Crea un nuevo RectangleBehavior.
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*
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* @param zili listener.
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*/
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public ScaleBehavior(GeoRasterBehavior grb, Cursor cur, ITransformIO windowIO) { |
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grBehavior = grb; |
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defaultCursor = cur; |
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this.trIO = windowIO;
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} |
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/**
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* Inicializaci?n. Calcula la longitud de la esquina y el ancho en p?xeles
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* de la zona de detecci?n del puntero de rat?n. Inicialmente esto est? calculado en
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* unidades pixel de la vista pero la detecci?n de puntero, debido a la rotaci?n posible
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* del raster ha de hacerse en unidades del raster en disco por ello ha de calcularse
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* una escala entre ambas unidades cuando se carga la aplicaci?n.
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*
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*/
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private void init() { |
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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lyr = grBehavior.getLayer(); |
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if(lyr == null) |
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return ;
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Extent ext = lyr.getDataSource().getExtent(); |
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AffineTransform atImg = lyr.getAffineTransform();
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//Establecer una escala entre las coordenadas de la vista y las coordenadas pixel
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Point2D ul = new Point2D.Double(ext.getULX(), ext.getULY()); |
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Point2D lr = new Point2D.Double(ext.getLRX(), ext.getLRY()); |
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Point2D ulPx = new Point2D.Double(); |
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Point2D lrPx = new Point2D.Double(); |
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Point2D ulVp = new Point2D.Double(); |
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Point2D lrVp = new Point2D.Double(); |
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double esc = 1; |
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try {
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atImg.inverseTransform(ul, ulPx); |
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atImg.inverseTransform(lr, lrPx); |
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ulVp = vp.fromMapPoint(ul); |
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lrVp = vp.fromMapPoint(lr); |
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esc = Math.abs(lrPx.getX() - ulPx.getX()) / Math.abs(lrVp.getX() - ulVp.getX()); |
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} catch (NoninvertibleTransformException e1) { |
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return;
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} |
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//Escalar PX_SELEC y LONG_CORNER para tenerlo en coordenadas pixel
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PX_SELEC = (int)(PX_SELEC_BASE * esc);
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LONG_CORNER = (int)(LONG_CORNER_BASE * esc);
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init = true;
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} |
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/**
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* <P>
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* Cuando se produce un evento de pintado dibujamos el marco de la imagen para
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* que el usuario pueda seleccionar y redimensionar. Pintamos un marco a la imagen para saber
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* donde la movemos.
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* </P>
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* <P>
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* Para dibujar el marco alrededor del raster hacemos lo mismo que para pintar el raster
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* rotado. En realidad dibujamos un cuadrado y luego le aplicamos las transformaciones necesarias
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* para que se vea con la misma forma del raster al que representa.
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* </P>
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*/
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public void paintComponent(Graphics g) { |
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if(isResizable && lyr != null) { |
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try {
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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Point2D ul = new Point2D.Double(); |
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Point2D lr = new Point2D.Double(); |
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AffineTransform tr = lyr.getAffineTransform();
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tr.transform(tmpUl, ul); |
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tr.transform(tmpLr, lr); |
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AffineTransform at = new AffineTransform(tr.getScaleX(), tr.getShearY(), |
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tr.getShearX(), tr.getScaleY(), |
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ul.getX(), ul.getY()); |
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at.preConcatenate(vp.getAffineTransform()); |
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vp.getAffineTransform().transform(ul, ul); |
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at.inverseTransform(ul, ul); |
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vp.getAffineTransform().transform(lr, lr); |
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at.inverseTransform(lr, lr); |
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((Graphics2D)g).transform(at);
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g.setColor(rectangleColor); |
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((Graphics2D)g).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.1f)); |
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g.fillRect((int)ul.getX(), (int)ul.getY(), (int)lr.getX(), (int)lr.getY()); |
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((Graphics2D)g).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f)); |
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g.drawRect((int)ul.getX(), (int)ul.getY(), (int)lr.getX(), (int)lr.getY()); |
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((Graphics2D)g).transform(at.createInverse());
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} catch (NoninvertibleTransformException e1) { |
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RasterToolsUtil.messageBoxError("error_transformacion1", this, e1); |
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} |
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} |
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} |
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/**
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* Reimplementaci?n del m?todo mousePressed de Behavior. Cuando se pulsa
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* estando sobre el marco de la imagen activamos la posibilidad de arrastrar
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* para redimensionar la imagen.
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*
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* @param e 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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setActiveTool(true);
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isResizable = true;;
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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if(lyr == null) |
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lyr = grBehavior.getLayer(); |
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if(vp != null && lyr != null) { |
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Extent ext = lyr.getFullRasterExtent(); |
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tmpUl = new Point2D.Double(ext.getULX(), ext.getULY()); |
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tmpLr = new Point2D.Double(ext.getLRX(), ext.getLRY()); |
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try {
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lyr.getAffineTransform().inverseTransform(tmpUl, tmpUl); |
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lyr.getAffineTransform().inverseTransform(tmpLr, tmpLr); |
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} catch (NoninvertibleTransformException e1) { |
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e1.printStackTrace(); |
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} |
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initWidth = Math.abs(tmpUl.getX() - tmpLr.getX());
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} |
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} |
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} |
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/**
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* Reimplementaci?n del m?todo mouseReleased de Behavior.
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*
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* @param e MouseEvent
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*
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* @throws BehaviorException Excepci?n lanzada cuando el Behavior.
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*/
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public void mouseReleased(MouseEvent e) throws BehaviorException { |
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resetBorderSelected(); |
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if (e.getButton() == MouseEvent.BUTTON1 && isResizable && lyr != null) { |
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endWidth = Math.abs(tmpUl.getX() - tmpLr.getX());
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escale = endWidth / initWidth; |
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AffineTransform tr = (AffineTransform)lyr.getAffineTransform().clone(); |
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Point2D ul = new Point2D.Double(); |
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Point2D lr = new Point2D.Double(); |
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tr.transform(tmpUl, ul); |
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tr.transform(tmpLr, lr); |
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AffineTransform esc = new AffineTransform(escale, 0, 0, escale, 0, 0); |
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AffineTransform at = new AffineTransform(tr.getScaleX(), tr.getShearY(), |
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tr.getShearX(), tr.getScaleY(), |
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ul.getX(), ul.getY()); |
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esc.preConcatenate(at); |
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lyr.setAffineTransform(esc); |
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grBehavior.getMapControl().getMapContext().invalidate(); |
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isResizable = false;
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super.mouseReleased(e);
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} |
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} |
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/**
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* Al arrastrar cuando se ha pulsado sobre el marco de la imagen recalculamos
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* el marco de la imagen
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*
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* @param e MouseEvent
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*/
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public void mouseDragged(MouseEvent ev) { |
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if(isResizable) {
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if(tmpLr == null || tmpUl == null || lyr == null) |
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return;
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setActiveTool(true);
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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//Pasamos el punto obtenido a coordenadas del raster
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Point2D e = new Point2D.Double(ev.getX(), ev.getY()); |
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e = vp.toMapPoint(e); |
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try {
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lyr.getAffineTransform().inverseTransform(e, e); |
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} catch (NoninvertibleTransformException e1) { |
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e1.printStackTrace(); |
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} |
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double longLadoX = Math.abs(tmpLr.getX() - tmpUl.getX()); |
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double longLadoY = Math.abs(tmpLr.getY() - tmpUl.getY()); |
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double coordCentroV = tmpUl.getY() + (Math.abs(tmpLr.getY() - tmpUl.getY()) / 2); |
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double coordCentroH = tmpUl.getX() + (Math.abs(tmpLr.getX() - tmpUl.getX()) / 2); |
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if(sideActive[2]) {//vertical derecha |
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double newLadoX = (e.getX() - tmpUl.getX());
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double newLadoY = (newLadoX * longLadoY) / longLadoX;
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tmpUl = new Point2D.Double(tmpUl.getX(), coordCentroV - (newLadoY / 2)); |
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tmpLr = new Point2D.Double(e.getX(), coordCentroV + (newLadoY / 2)); |
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} else if(sideActive[3]) {//vertical izquierda |
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double newLadoX = (e.getX() - tmpLr.getX());
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double newLadoY = (newLadoX * longLadoY) / longLadoX;
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tmpLr = new Point2D.Double(tmpLr.getX(), coordCentroV - (newLadoY / 2)); |
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tmpUl = new Point2D.Double(e.getX(), coordCentroV + (newLadoY/2)); |
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} else if(sideActive[1]) {//horizontal abajo |
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double newLadoY = (e.getY() - tmpUl.getY());
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double newLadoX = (newLadoY * longLadoX) / longLadoY;
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tmpLr = new Point2D.Double(coordCentroH + (newLadoX / 2), e.getY()); |
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tmpUl = new Point2D.Double(coordCentroH - (newLadoX / 2), tmpUl.getY()); |
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} else if(sideActive[0]) {//horizontal arriba |
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double newLadoY = (tmpLr.getY() - e.getY());
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double newLadoX = (newLadoY * longLadoX) / longLadoY;
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tmpUl = new Point2D.Double(coordCentroH - (newLadoX / 2), e.getY()); |
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tmpLr = new Point2D.Double(coordCentroH + (newLadoX / 2), tmpLr.getY()); |
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} else if(sideActive[6]) {//Esquina inferior derecha |
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double rel = longLadoX / longLadoY;
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double difY = (e.getY() - tmpLr.getY());
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double difX = (e.getX() - tmpLr.getX());
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if(difX > difY){
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difY = difX / rel; |
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}else
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difX = difY * rel; |
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tmpUl = new Point2D.Double(tmpUl.getX(), tmpUl.getY()); |
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tmpLr = new Point2D.Double(tmpLr.getX() + difX, tmpLr.getY() + difY); |
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} else if(sideActive[5]) {//Esquina superior izquierda |
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double rel = longLadoX / longLadoY;
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double difY = (tmpUl.getY() - e.getY());
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double difX = (tmpUl.getX() - e.getX());
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if(difX > difY){
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difY = difX / rel; |
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}else
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difX = difY * rel; |
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tmpUl = new Point2D.Double(tmpUl.getX() - difX, tmpUl.getY() - difY); |
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tmpLr = new Point2D.Double(tmpLr.getX(), tmpLr.getY()); |
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} else if(sideActive[4]) {//Esquina superior derecha |
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double rel = longLadoX / longLadoY;
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double difY = (tmpUl.getY() - e.getY());
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double difX = (e.getX() - tmpLr.getX());
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if(difX > difY){
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difY = difX / rel; |
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}else
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difX = difY * rel; |
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tmpUl = new Point2D.Double(tmpUl.getX(), tmpUl.getY() - difY); |
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tmpLr = new Point2D.Double(tmpLr.getX() + difX, tmpLr.getY()); |
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} else if(sideActive[7]) {//Esquina inferior izquierda |
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double rel = longLadoX / longLadoY;
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double difY = (e.getY() - tmpLr.getY());
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double difX = (tmpUl.getX() - e.getX());
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if(difX > difY)
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difY = difX / rel; |
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else
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difX = difY * rel; |
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tmpUl = new Point2D.Double(tmpUl.getX() - difX, tmpUl.getY()); |
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tmpLr = new Point2D.Double(tmpLr.getX(), tmpLr.getY() + difY); |
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} |
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//Asignaci?n de las coordenadas temporales al dialogo
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assignTransformToDialog(); |
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grBehavior.getMapControl().repaint(); |
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} |
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} |
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/**
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* Asigna las coordenadas temporales en el dialogo.
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*/
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public void assignTransformToDialog() { |
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Point2D ul = new Point2D.Double(); |
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Point2D lr = new Point2D.Double(); |
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AffineTransform tr = grBehavior.getLayer().getAffineTransform();
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tr.transform(tmpUl, ul); |
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tr.transform(tmpLr, lr); |
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endWidth = Math.abs(tmpUl.getX() - tmpLr.getX());
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escale = endWidth / initWidth; |
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AffineTransform esc = new AffineTransform(escale, 0, 0, escale, 0, 0); |
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AffineTransform at = new AffineTransform(tr.getScaleX(), tr.getShearY(), |
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tr.getShearX(), tr.getScaleY(), |
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ul.getX(), ul.getY()); |
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esc.preConcatenate(at); |
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trIO.loadTransform(esc); |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.tools.Behavior.Behavior#setListener(org.gvsig.georeferencing.fmap.tools.ToolListener)
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*/
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public void setListener(ToolListener listener) { |
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this.listener = (RectangleListener) listener;
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} |
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/**
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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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* Cuando movemos el rat?n detecta si estamos en el marco de la
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* imagen y pone el icono del cursor del rat?n adecuado.
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*/
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public boolean mouseMoved(MouseEvent ev) throws BehaviorException { |
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if(!init)
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init(); |
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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resetBorderSelected(); |
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lyr = grBehavior.getLayer(); |
| 399 |
if(lyr == null) { |
| 400 |
setActiveTool(false);
|
| 401 |
return false; |
| 402 |
} |
| 403 |
|
| 404 |
AffineTransform atImg = lyr.getAffineTransform();
|
| 405 |
|
| 406 |
//Pasar coordenadas del punto a coordenadas reales y luego a coordenadas pixel
|
| 407 |
Point2D e = vp.toMapPoint(ev.getX(), ev.getY());
|
| 408 |
try {
|
| 409 |
atImg.inverseTransform(e, e); |
| 410 |
} catch (NoninvertibleTransformException e1) { |
| 411 |
return false; |
| 412 |
} |
| 413 |
|
| 414 |
//Comprobar si est? dentro del raster
|
| 415 |
Point2D p1 = new Point2D.Double(0, 0); |
| 416 |
Point2D p2 = new Point2D.Double(lyr.getDataSource().getWidth(), lyr.getDataSource().getHeight()); |
| 417 |
|
| 418 |
//Fuera del raster
|
| 419 |
if(e.getX() < p1.getX() || e.getX() > p2.getX() || e.getY() < p1.getY() || e.getY() > p2.getY() ) {
|
| 420 |
setActiveTool(false);
|
| 421 |
grBehavior.getMapControl().repaint(); |
| 422 |
grBehavior.getMapControl().setCursor(defaultCursor); |
| 423 |
return false; |
| 424 |
} |
| 425 |
|
| 426 |
//Borde izquierdo
|
| 427 |
if(e.getX() > p1.getX() && e.getX() <= (p1.getX() + PX_SELEC) && e.getY() > (p1.getY() + LONG_CORNER) && e.getY() < (p2.getY() - LONG_CORNER)) {
|
| 428 |
setCursor(iconHoriz); |
| 429 |
setActiveTool(true);
|
| 430 |
sideActive[3] = true; |
| 431 |
return true; |
| 432 |
} |
| 433 |
|
| 434 |
//Borde derecho
|
| 435 |
if(e.getX() >= (p2.getX() - PX_SELEC) && e.getX() < p2.getX() && e.getY() > (p1.getY() + LONG_CORNER) && e.getY() < (p2.getY() - LONG_CORNER)) {
|
| 436 |
setCursor(iconHoriz); |
| 437 |
setActiveTool(true);
|
| 438 |
sideActive[2] = true; |
| 439 |
return true; |
| 440 |
} |
| 441 |
|
| 442 |
//Borde superior
|
| 443 |
if(e.getY() > p1.getY() && e.getY() <= (p1.getY() + PX_SELEC) && e.getX() > (p1.getX() + LONG_CORNER) && e.getX() < (p2.getX() - LONG_CORNER)) {
|
| 444 |
setCursor(iconVert); |
| 445 |
setActiveTool(true);
|
| 446 |
sideActive[0] = true; |
| 447 |
return true; |
| 448 |
} |
| 449 |
|
| 450 |
//Borde inferior
|
| 451 |
if(e.getY() >= (p2.getY() - PX_SELEC) && e.getY() < p2.getY() && e.getX() > (p1.getX() + LONG_CORNER) && e.getX() < (p2.getX() - LONG_CORNER)) {
|
| 452 |
setCursor(iconVert); |
| 453 |
setActiveTool(true);
|
| 454 |
sideActive[1] = true; |
| 455 |
return true; |
| 456 |
} |
| 457 |
|
| 458 |
//esquina superior izquierda
|
| 459 |
if ((e.getX() > p1.getX() && e.getX() <= (p1.getX() + LONG_CORNER) && e.getY() > p1.getY() && e.getY() < (p1.getY() + PX_SELEC)) ||
|
| 460 |
(e.getX() > p1.getX() && e.getX() <= (p1.getX() + PX_SELEC) && e.getY() > p1.getY() && e.getY() <= (p1.getY() + LONG_CORNER))) {
|
| 461 |
if((atImg.getScaleX() * atImg.getScaleY()) < 0) |
| 462 |
setCursor(iconInclIzq); |
| 463 |
else
|
| 464 |
setCursor(iconInclDer); |
| 465 |
setActiveTool(true);
|
| 466 |
sideActive[5] = true; |
| 467 |
return true; |
| 468 |
} |
| 469 |
|
| 470 |
//esquina superior derecha
|
| 471 |
if ((e.getX() >= (p2.getX() - LONG_CORNER) && e.getX() < p2.getX() && e.getY() > p1.getY() && e.getY() < (p1.getY() + PX_SELEC)) ||
|
| 472 |
(e.getX() >= (p2.getX() - PX_SELEC) && e.getX() < p2.getX() && e.getY() > p1.getY() && e.getY() <= (p1.getY() + LONG_CORNER))) {
|
| 473 |
if((atImg.getScaleX() * atImg.getScaleY()) < 0) |
| 474 |
setCursor(iconInclDer); |
| 475 |
else
|
| 476 |
setCursor(iconInclIzq); |
| 477 |
setActiveTool(true);
|
| 478 |
sideActive[4] = true; |
| 479 |
return true; |
| 480 |
} |
| 481 |
|
| 482 |
//esquina inferior izquierda
|
| 483 |
if ((e.getX() > p1.getX() && e.getX() <= (p1.getX() + LONG_CORNER) && e.getY() >= (p2.getY() - PX_SELEC) && e.getY() < p2.getY()) ||
|
| 484 |
(e.getX() > p1.getX() && e.getX() <= (p1.getX() + PX_SELEC) && e.getY() < p2.getY() && e.getY() >= (p2.getY() - LONG_CORNER))) {
|
| 485 |
if((atImg.getScaleX() * atImg.getScaleY()) < 0) |
| 486 |
setCursor(iconInclDer); |
| 487 |
else
|
| 488 |
setCursor(iconInclIzq); |
| 489 |
setActiveTool(true);
|
| 490 |
sideActive[7] = true; |
| 491 |
return true; |
| 492 |
} |
| 493 |
|
| 494 |
//esquina inferior derecha
|
| 495 |
if ((e.getX() < p2.getX() && e.getX() >= (p2.getX() - LONG_CORNER) && e.getY() >= (p2.getY() - PX_SELEC) && e.getY() < p2.getY()) ||
|
| 496 |
(e.getX() < p2.getX() && e.getX() >= (p2.getX() - PX_SELEC) && e.getY() < p2.getY() && e.getY() >= (p2.getY() - LONG_CORNER))){
|
| 497 |
if((atImg.getScaleX() * atImg.getScaleY()) < 0) |
| 498 |
setCursor(iconInclIzq); |
| 499 |
else
|
| 500 |
setCursor(iconInclDer); |
| 501 |
setActiveTool(true);
|
| 502 |
sideActive[6] = true; |
| 503 |
return true; |
| 504 |
} |
| 505 |
|
| 506 |
grBehavior.getMapControl().repaint(); |
| 507 |
grBehavior.getMapControl().setCursor(defaultCursor); |
| 508 |
return false; |
| 509 |
} |
| 510 |
|
| 511 |
/**
|
| 512 |
* Pone a false todos los elementos del array sideActive. Esto es equivalente
|
| 513 |
* a eliminar cualquier selecci?n de borde.
|
| 514 |
*/
|
| 515 |
private void resetBorderSelected() { |
| 516 |
for (int i = 0; i < sideActive.length; i++) |
| 517 |
sideActive[i] = false;
|
| 518 |
} |
| 519 |
|
| 520 |
} |