gvsig-raster / org.gvsig.raster.wcs / trunk / org.gvsig.raster.wcs / org.gvsig.raster.wcs.app.wcsclient / src / main / java / org / gvsig / raster / wcs / app / wcsclient / gui / toc / WCSZoomPixelCursorListener.java @ 1944
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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.wcs.app.wcsclient.gui.toc; |
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import java.awt.Cursor; |
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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.geom.Point2D; |
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import org.gvsig.andami.IconThemeHelper; |
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import org.gvsig.fmap.dal.exception.ReadException; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.exception.CreateEnvelopeException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontext.layers.FLayer; |
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import org.gvsig.fmap.mapcontrol.MapControl; |
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import org.gvsig.fmap.mapcontrol.tools.BehaviorException; |
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import org.gvsig.fmap.mapcontrol.tools.Events.PointEvent; |
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import org.gvsig.fmap.mapcontrol.tools.Listeners.PointListener; |
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import org.gvsig.raster.wcs.app.wcsclient.layer.FLyrWCS; |
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/**
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* <p>Listener that executes a <i>zoom in</i> operation in the associated <code>MapControl</code>,
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* having as center the point selected.</p>
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*
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* <p>Listens a single click of any mouse's button.</p>
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*
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* <p>The <i>zoom in</i> factor will depend on the maximum resolution of the <i>WCS</i> layers in
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* the <code>MapControl</code>.</p>
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*
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* @author Nacho Brodin (brodin_ign@gva.es)
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*/
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public class WCSZoomPixelCursorListener implements PointListener { |
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private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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/**
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* Object used to log messages for this listener.
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*/
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//private static Logger logger = Logger.getLogger(WCSZoomPixelCursorListener.class.getName());
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/**
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* The image to display when the cursor is active.
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*/
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private final Image img = IconThemeHelper.getImageIcon("view-previsualize-area").getImage(); |
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/**
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* The cursor used to work with this tool listener.
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*
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* @see #getCursor()
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*/
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private Cursor cur = Toolkit.getDefaultToolkit().createCustomCursor( img, |
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/**
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* Reference to the <code>MapControl</code> object that uses.
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*/ new Point(16, 16), ""); |
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private MapControl mapCtrl;
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/**
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* <p>Creates a new <code>WCSZoomPixelCursorListener</code> object.</p>
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*
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* @param mc the <code>MapControl</code> where be applied the changes
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*/
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public WCSZoomPixelCursorListener(MapControl mc) {
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this.mapCtrl = mc;
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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.Listeners.PointListener#point(com.iver.cit.gvsig.fmap.tools.Events.PointEvent)
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*/
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public void point(PointEvent event) throws BehaviorException { |
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Point2D pReal = mapCtrl.getMapContext().getViewPort().toMapPoint(event.getPoint());
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//Point imagePoint = new Point((int) event.getPoint().getX(), (int) event.getPoint().getY());
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ViewPort v = mapCtrl.getMapContext().getViewPort(); |
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FLayer[] actives = mapCtrl.getMapContext().getLayers().getActives();
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Envelope ext = null;
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try {
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ext = actives[0].getFullEnvelope();
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} catch (ReadException e) {
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throw new BehaviorException(e.getMessage()); |
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} |
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if( ext != null ){ |
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double w2 = v.getImageWidth()/2D; |
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double h2 = v.getImageHeight()/2D; |
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double wcOriginX = pReal.getX();
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double wcOriginY = pReal.getY();
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Point2D maxRes = ((FLyrWCS)actives[0]).getMaxResolution(); |
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double wcDstMinX = wcOriginX-w2*maxRes.getX();
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double wcDstMinY = wcOriginY-h2*maxRes.getY();
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double wcDstWidth = w2*maxRes.getX()*2D; |
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double wcDstHeight = h2*maxRes.getY()*2D; |
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Envelope rect; |
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try {
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rect = geomManager.createEnvelope( |
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wcDstMinX, wcDstMinY, wcDstMinX + wcDstWidth, wcDstMinY - wcDstHeight, SUBTYPES.GEOM2D); |
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} catch (CreateEnvelopeException e) {
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throw new BehaviorException(e.getMessage()); |
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} |
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mapCtrl.getMapContext().getViewPort().setEnvelope(rect); |
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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.Listeners.ToolListener#getCursor()
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*/
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public Cursor getCursor() { |
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return cur;
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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.Listeners.ToolListener#cancelDrawing()
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*/
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public boolean cancelDrawing() { |
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return 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.Listeners.PointListener#pointDoubleClick(com.iver.cit.gvsig.fmap.tools.Events.PointEvent)
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*/
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public void pointDoubleClick(PointEvent event) throws BehaviorException { |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.mapcontrol.tools.Listeners.ToolListener#getImageCursor()
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*/
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public Image getImageCursor() { |
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return img;
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} |
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} |