gvsig-raster / org.gvsig.raster.tools / trunk / org.gvsig.raster.tools / org.gvsig.raster.tools.app / org.gvsig.raster.tools.app.basic / src / main / java / org / gvsig / raster / tools / app / basic / tool / geolocation / behavior / TranslateBehavior.java @ 1174
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.raster.tools.app.basic.tool.geolocation.behavior; |
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import java.awt.AlphaComposite; |
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import java.awt.HeadlessException; |
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import java.awt.Image; |
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import java.awt.Point; |
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import java.awt.Toolkit; |
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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 org.gvsig.andami.IconThemeHelper; |
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import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
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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.Listeners.ToolListener; |
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import org.gvsig.raster.fmap.layers.FLyrRaster; |
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import org.gvsig.raster.tools.app.basic.RasterToolsUtil; |
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/**
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* Comportamiento que se aplica a la herramienta de translate. El cursor del rat?n cambiar? cuando
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* se encuentre en la zona interior al raster, permitiendo el deformar 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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public class TranslateBehavior extends TransformationBehavior { |
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private final Image handCursor = IconThemeHelper.getImage("hand-cursor"); |
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// private Cursor cur = null;
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private boolean isMoveable = false; |
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/**
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* Variable booleana que est? a true si el cursor por defecto est?
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* activo y a false si hay otro.
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*/
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private boolean defaultCursorActive = true; |
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/**
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* Puntos de inicio y final para el arrastre de la imagen.
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*/
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private Point2D ptoIni = null; |
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private Point2D ptoFin = null; |
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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 TranslateBehavior(GeoRasterBehavior grb, Image curImage, ITransformIO windowIO) { |
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grBehavior = grb; |
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defaultImage = curImage; |
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this.trIO = windowIO;
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} |
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/**
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* Coloca el cursor del rat?n con el icono adecuado cuando entra dentro de la
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* imagen.
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*/
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public boolean mouseMoved(MouseEvent e) throws BehaviorException { |
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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try {
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lyr = grBehavior.getLayer(); |
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if (lyr == null) { |
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setActiveTool(false);
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return false; |
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} |
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Point2D pto = vp.toMapPoint(e.getX(), e.getY());
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try {
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if (lyr.isInside(pto)) {
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grBehavior.getMapControl().setCursor(Toolkit.getDefaultToolkit().createCustomCursor(handCursor,
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new Point(16, 16), "")); |
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defaultCursorActive = false;
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setActiveTool(true);
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return true; |
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} else {
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if (!defaultCursorActive) {
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// grBehavior.getMapControl().setCursor(defaultCursor);
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defaultCursorActive = true;
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setActiveTool(false);
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return false; |
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} |
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} |
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} catch (HeadlessException e1) { |
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e1.printStackTrace(); |
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} catch (IndexOutOfBoundsException e1) { |
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e1.printStackTrace(); |
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} |
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} catch(ClassCastException exc){ |
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RasterToolsUtil.messageBoxError("error_capa_puntos", this, exc); |
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} |
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setActiveTool(false);
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return false; |
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} |
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/**
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* Si no est? activo el cursor por defecto capturamos el punto
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* seleccionado en coordenadas del mundo real.
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*/
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public void mousePressed(MouseEvent e) throws BehaviorException { |
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if (e.getButton() == MouseEvent.BUTTON1 && !defaultCursorActive) { |
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setActiveTool(true);
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lyr = grBehavior.getLayer(); |
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if (lyr == null) |
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return;
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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ptoIni = vp.toMapPoint(e.getPoint()); |
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isMoveable = true;
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} |
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} |
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/**
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* Cuando soltamos el bot?n del rat?n desplazamos la imagen a la posici?n
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* de destino calculando el extent nuevamente.
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*/
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public void mouseReleased(MouseEvent e) throws BehaviorException { |
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if (!isActiveTool())
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return;
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if (e.getButton() == MouseEvent.BUTTON1 && isMoveable){ |
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FLyrRaster lyr = grBehavior.getLayer(); |
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if (lyr == null) |
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return;
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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ptoFin = vp.toMapPoint(e.getPoint()); |
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//Asignamos la nueva matriz de transformaci?n a la capa
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AffineTransform atOld = lyr.getAffineTransform();
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AffineTransform atNew = null; |
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double distX = ptoFin.getX() - ptoIni.getX();
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double distY = ptoFin.getY() - ptoIni.getY();
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//La nueva matriz de transformaci?n es la vieja m?s la distancia desplazada
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atNew = new AffineTransform(atOld.getScaleX(), atOld.getShearY(), |
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atOld.getShearX(), atOld.getScaleY(), |
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atOld.getTranslateX() + distX, |
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atOld.getTranslateY() + distY); |
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lyr.setAffineTransform(atNew); |
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grBehavior.getMapControl().getMapContext().invalidate(); |
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isMoveable = false;
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super.mouseReleased(e);
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} |
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} |
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/**
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* <P>
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* Funci?n de pintado del canvas. 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(MapControlDrawer mapControlDrawer) { |
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if (isMoveable && lyr != null && ptoFin != null && ptoIni != null) { |
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try {
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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AffineTransform at = (AffineTransform)lyr.getAffineTransform().clone(); |
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at.preConcatenate(vp.getAffineTransform()); |
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Extent ext = lyr.getFullRasterExtent(); |
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Point2D pt = new Point2D.Double(ext.getULX(), ext.getULY()); |
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vp.getAffineTransform().transform(pt, pt); |
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at.inverseTransform(pt, pt); |
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Point2D size = new Point2D.Double(ext.getLRX(), ext.getLRY()); |
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vp.getAffineTransform().transform(size, size); |
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at.inverseTransform(size, size); |
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double distX = ptoFin.getX() - ptoIni.getX();
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double distY = ptoFin.getY() - ptoIni.getY();
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Point2D d = new Point2D.Double(ext.getULX() + distX, ext.getULY() + distY); |
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vp.getAffineTransform().transform(d, d); |
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at.inverseTransform(d, d); |
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//Giramos el graphics se dibuja y se vuelve a dejar como estaba
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mapControlDrawer.transform(at); |
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mapControlDrawer.setColor(rectangleColor); |
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AlphaComposite alpha = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.1f); |
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mapControlDrawer.setComposite(alpha); |
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mapControlDrawer.fillRect((int)pt.getX() + (int)d.getX(), (int)pt.getY() + (int)d.getY(), (int)size.getX(), (int)size.getY()); |
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mapControlDrawer.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f)); |
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mapControlDrawer.drawRect((int)pt.getX() + (int)d.getX(), (int)pt.getY() + (int)d.getY(), (int)size.getX(), (int)size.getY()); |
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mapControlDrawer.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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* Esta funci?n repinta el canvas si se est? arrasrtando la imagen para
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* poder ver el marco de arrastre.
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*/
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public void mouseDragged(MouseEvent e) throws BehaviorException { |
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if (!isActiveTool())
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return;
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if (isMoveable) {
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ViewPort vp = grBehavior.getMapControl().getMapContext().getViewPort(); |
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ptoFin = vp.toMapPoint(e.getPoint()); |
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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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AffineTransform atNew = null; |
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double distX = ptoFin.getX() - ptoIni.getX();
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double distY = ptoFin.getY() - ptoIni.getY();
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AffineTransform atOld = grBehavior.getLayer().getAffineTransform();
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//La nueva matriz de transformaci?n es la vieja m?s la distancia desplazada
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atNew = new AffineTransform(atOld.getScaleX(), atOld.getShearY(), |
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atOld.getShearX(), atOld.getScaleY(), |
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atOld.getTranslateX() + distX, |
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atOld.getTranslateY() + distY); |
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trIO.loadTransform(atNew); |
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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 null; |
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} |
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} |