Application: gvSIG desktop » gvSIG raster

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.raster.georeferencing.swing.impl.view;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import org.gvsig.raster.georeferencing.swing.view.IViewRequestManager;

import org.gvsig.raster.georeferencing.swing.view.IGraphicLayer;

/**

 * Panel que contiene el control de zoom para el raster a georreferenciar.

 * 

 * 22/12/2007

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class ZoomPanelImpl extends BaseZoomView {

        private static final long         serialVersionUID = 1L;

        /**

         * Constructor.

         * Crea la composici?n de controles de zoom.

         */

        public ZoomPanelImpl() {

                init();

        }

        /**

         * Asigna el valor para el flag minxMaxyUL. Este flag informa de que la esquina 

         * superior izquierda corresponde con el valor de m?nimo X y m?ximo Y. En caso 

         * de ser false esta esquina ser?a de m?nimo X y m?nimo Y.

         * @param v

         */

        public void setMinxMaxyUL(boolean v) {

                getCanvas().setMinxMaxyUL(v);

        }

        public boolean getMinxMaxyUL() {

                return getCanvas().getMinxMaxyUL();

        }

        /**

         * Activa o desactiva el mostrado de informaci?n

         * @param showInfo

         */

        public void setShowInfo(boolean show) {

                zoomPixelControl.getCanvas().setShowInfo(show);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.rastertools.georeferencing.view.BaseZoomView#addGraphicLayer(org.gvsig.rastertools.georeferencing.ui.zoom.IGraphicLayer)

         */

        public void addGraphicLayer(IGraphicLayer graphicLayer) {

                getControl().setGraphicLayer(graphicLayer);

        }

        /**

         * Inicializaci?n de los componentes gr?ficos

         */

        private void init() {

                setLayout(new GridBagLayout());

                GridBagConstraints gb = new GridBagConstraints();

                gb.insets = new java.awt.Insets(0, 0, 0, 0);

                gb.gridy = 0;

                gb.gridx = 0;

                gb.weightx = 1D; //El espacio sobrante se distribuye horizontalmente

                gb.weighty = 1D; //El espacio sobrante se distribuye verticalmente

                gb.fill = GridBagConstraints.BOTH; //El componente se hace tan ancho como espacio disponible tiene

                gb.anchor = GridBagConstraints.NORTH; //Alineamos las cajas arriba

                add(getControl(), gb);

        }

        /**

         * Registra un objeto IExtensionRequest para que no se aplique un escalado sobre

         * el buffer pasado por par?metro. Alternativamente a la aplicaci?n de este escalado

         * se ejecutar? el m?todo request del interfaz para que el cliente pueda pasar un 

         * nuevo buffer con escala 1:1 y con la extensi?n correspondiente al zoom.

         * @param er

         */

        public void setRequestListener(IViewRequestManager er) {

                zoomPixelControl.setExtensionRequest(er);

        }

        /**

         * Obtiene el panel de control de zoom de coordenadas pixel

         * @return

         */

        public ViewControl getControl() {

                if(zoomPixelControl == null) {

                        zoomPixelControl = new ViewControl(ViewControl.LEFT_CONTROL);

                        zoomPixelControl.hideButton(ViewControl.PREV_ZOOM);

                        zoomPixelControl.hideButton(ViewControl.FULL_VIEW);

                        zoomPixelControl.hideButton(ViewControl.SELECT_ZOOM_AREA);

                        zoomPixelControl.hideButton(ViewControl.ZOOM_INCREASE);

                        zoomPixelControl.hideButton(ViewControl.ZOOM_DECREASE);

                        zoomPixelControl.hideButton(ViewControl.PAN);

                        zoomPixelControl.hideButton(ViewControl.LOCATOR);

                }

                return zoomPixelControl;

        }

        /**

         * Asigna los par?metros de dibujado para el raster

         * @param img Buffer con un ?rea de datos

         * @param ext Rectangle2D del ?rea de datos dada 

         * @param pixelSize Tama?o de pixel

         * @param center Punto del ?rea de datos donde se quiere centrar el dibujado del buffer

         */

        public void setDrawParams(BufferedImage img, Rectangle2D ext, double pixelSize, Point2D center) {

                getControl().setDrawParams(img, ext, pixelSize, center) ;

        }

        /**

         * This call is not possible in the zoom window

         */

        public Rectangle2D getCursorAdjustedWorldCoordinates(int wWindow, int hWindow) {

                return null;

        }

}