| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 */

package org.gvsig.rastertools.properties.panels;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.BorderFactory;

import javax.swing.JCheckBox;

import javax.swing.border.TitledBorder;

import org.gvsig.fmap.raster.layers.FLyrRasterSE;

import org.gvsig.fmap.raster.layers.IRasterLayerActions;

import org.gvsig.gui.beans.checkslidertext.CheckSliderTextContainer;

import org.gvsig.gui.beans.panelGroup.panels.AbstractPanel;

import org.gvsig.gui.beans.slidertext.listeners.SliderEvent;

import org.gvsig.gui.beans.slidertext.listeners.SliderListener;

import org.gvsig.gui.util.StatusComponent;

import org.gvsig.raster.hierarchy.IRasterProperties;

import org.gvsig.rastertools.RasterModule;

import org.gvsig.rastertools.properties.control.TransparencyListener;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.fmap.layers.FLayer;

/**

 * Dialogo para asignar la transparencia por pixel y global al raster.

 *

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

 */

public class TransparencyPanel extends AbstractPanel implements ActionListener, SliderListener {

        private static final long serialVersionUID = -4556920949255458471L;

        private IRasterProperties        op                   = null;

        /**

         * N?mero de bandas del raster

         */

        public int                       nBands               = 3;

        private JCheckBox                cbTransparencia      = null;

        private TranspByPixelPanel       pTranspByPixel       = null;

        private CheckSliderTextContainer pOpacity             = null;

        private TransparencyListener     transparencyListener = null;

        /**

         * Constructor.

         */

        public TransparencyPanel() {

                setLabel(PluginServices.getText(this, "transparencia"));

                initialize();

        }

        private TransparencyListener getTransparencyListener() {

                if (transparencyListener == null) {

                        transparencyListener = new TransparencyListener(this);

                }

                return transparencyListener;

        }

        /**

         * This method initializes this

         * @return void

         */

        protected void initialize() {

                this.setLayout(new BorderLayout());

                this.add(getOpacityPanel(), BorderLayout.NORTH);

                this.add(getPTranspByPixel(), BorderLayout.CENTER);

                initControls();

                this.setPreferredSize(new Dimension(100, 80));

        }

        /**

         * Asigna el n?mero de bandas de la imagen

         * @param nBands

         */

        public void setBands(int nBands) {

                this.nBands = nBands;

        }

        /**

         * Inicializa controles a sus valores por defecto

         */

        public void initControls() {

                this.setActiveTransparencyControl(false);

        }

        /**

         * This method initializes jCheckBox

         * @return javax.swing.JCheckBox

         */

        public JCheckBox getTransparencyCheck() {

                if (cbTransparencia == null) {

                        cbTransparencia = new JCheckBox();

                        cbTransparencia.setText("Activar");

                        cbTransparencia.addActionListener(this);

                }

                return cbTransparencia;

        }

        /**

         * This method initializes TranspOpacitySliderPanel

         * @return javax.swing.JPanel

         */

        public CheckSliderTextContainer getOpacityPanel() {

                if (pOpacity == null) {

                        pOpacity = new CheckSliderTextContainer(0, 100, 100, false, PluginServices.getText(this, "activar"), false, false, true);

                        pOpacity.setDecimal(false);

                        pOpacity.setBorder(PluginServices.getText(this, "opacidad"));

                        pOpacity.addValueChangedListener(this);

                }

                return pOpacity;

        }

        /**

         * Activa/Desactiva los controles de transparencia

         * @param active

         */

        public void setActiveTransparencyControl(boolean active) {

                this.getTransparencyCheck().setSelected(active);

                TranspByPixelRGBInputPanel rgbPanel = this.getPTranspByPixel().getPRGBInput();

                rgbPanel.getTRed().setEnabled(active);

                if (op != null) {

                        if (op.getBandCount() == 2) {

                                rgbPanel.getTGreen().setEnabled(active);

                                rgbPanel.getTBlue().setEnabled(false);

                        }

                        if (op.getBandCount() == 3) {

                                rgbPanel.getTGreen().setEnabled(active);

                                rgbPanel.getTBlue().setEnabled(active);

                        }

                }

        }

        /**

         * This method initializes jPanel2

         * @return javax.swing.JPanel

         */

        public TranspByPixelPanel getPTranspByPixel() {

                if (pTranspByPixel == null) {

                        pTranspByPixel = new TranspByPixelPanel();

                        pTranspByPixel.setBorder(BorderFactory.createTitledBorder(null, PluginServices.getText(this, "transp_by_pixel"), TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, null));

                }

                return pTranspByPixel;

        }

        /**

         * Eventos sobre TextField y CheckBox. Controla eventos de checkbox de

         * opacidad, transparencia, recorte de colas y los textfield de opacidad,

         * valores de transparencia por banda y porcentaje de recorte.

         */

        public void actionPerformed(ActionEvent e) {

                // Evento sobre el checkbox de transparencia

                if (e.getSource().equals(getTransparencyCheck())) {

                        // Check de opacidad activado -> Activar controles de opacidad

                        if (getTransparencyCheck().isSelected()) {

                                getPTranspByPixel().setControlEnabled(true);

                                getPTranspByPixel().getPRGBInput().setActiveBands(nBands);

                        } else

                                getPTranspByPixel().setControlEnabled(false);

                }

        }

        /**

         * Obtiene el interfaz de operaciones raster

         * @return FLyrRasterSE

         */

        public IRasterProperties getRasterOperations() {

                return op;

        }

        /**

         * Obtiene la capa si existe esta.

         * @return FLayer si existe una capa o null si no existe.

         */

        public FLayer getLayer() {

                if (op instanceof FLayer)

                        return (FLayer) op;

                return null;

        }

        public void setReference(Object ref) {

                super.setReference(ref);

                if (!(ref instanceof FLayer))

                        return;

                FLayer lyr = (FLayer) ref;

                if (lyr instanceof IRasterProperties) {

                        op = (IRasterProperties) lyr;

                        getTransparencyListener().setLayer(op);

                }

                actionEnabled();

        }

        private void actionEnabled() {

                if (op == null) {

                        setVisible(false);

                        return;

                }

                FLyrRasterSE fLyrRasterSE = ((FLyrRasterSE) op);

                if (!fLyrRasterSE.isActionEnabled(IRasterLayerActions.OPACITY))

                        StatusComponent.setDisabled(getOpacityPanel());

                if (!fLyrRasterSE.isActionEnabled(IRasterLayerActions.TRANSPARENCY))

                        StatusComponent.setDisabled(getPTranspByPixel());

                if (!fLyrRasterSE.isActionEnabled(IRasterLayerActions.TRANSPARENCY) &&

                                !fLyrRasterSE.isActionEnabled(IRasterLayerActions.OPACITY))

                        setVisible(false);

                else

                        setVisible(true);

        }

        /*

         *  (non-Javadoc)

         * @see org.gvsig.rastertools.properties.dialog.IRegistrablePanel#accept()

         */

        public void accept() {

                getTransparencyListener().accept();

        }

        /*

         *  (non-Javadoc)

         * @see org.gvsig.rastertools.properties.dialog.IRegistrablePanel#apply()

         */

        public void apply() {

                getTransparencyListener().apply();

        }

        /*

         *  (non-Javadoc)

         * @see org.gvsig.rastertools.properties.dialog.IRegistrablePanel#cancel()

         */

        public void cancel() {

                getTransparencyListener().cancel();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.slidertext.listeners.SliderListener#actionValueChanged(org.gvsig.gui.beans.slidertext.listeners.SliderEvent)

         */

        public void actionValueChanged(SliderEvent e) {

                if (!RasterModule.autoRefreshView)

                        return;

                getTransparencyListener().onlyApply();

        }

        public void actionValueDragged(SliderEvent e) {}

        public void selected() {}

}