Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.app.project.documents.view.toc.actions;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.app.extension.ProjectExtension;

import org.gvsig.app.gui.styling.SymbolSelector;

import org.gvsig.app.project.Project;

import org.gvsig.app.project.documents.view.legend.gui.ISymbolSelector;

import org.gvsig.app.project.documents.view.toc.AbstractTocContextMenuAction;

import org.gvsig.app.project.documents.view.toc.ITocItem;

import org.gvsig.app.project.documents.view.toc.TocItemLeaf;

import org.gvsig.fmap.dal.exception.ReadException;

import org.gvsig.fmap.mapcontext.MapContext;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect;

import org.gvsig.fmap.mapcontext.rendering.legend.IClassifiedVectorLegend;

import org.gvsig.fmap.mapcontext.rendering.legend.ILegend;

import org.gvsig.fmap.mapcontext.rendering.legend.ISingleSymbolLegend;

import org.gvsig.fmap.mapcontext.rendering.legend.IVectorLegend;

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.fill.impl.MultiLayerFillSymbol;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * Directly opens the Symbol Selector if it is invoked from the TOC avoiding

 * by-passing the Layer Properties window

 */

public class ChangeSymbolTocMenuEntry extends AbstractTocContextMenuAction {

    private static final Logger logger = LoggerFactory

            .getLogger(ChangeSymbolTocMenuEntry.class);

        public String getGroup() {

                return "group1"; //FIXME

        }

        public int getGroupOrder() {

                return 10;

        }

        public int getOrder() {

                return 0;

        }

        public String getText() {

                return PluginServices.getText(this, "change_symbol");

        }

        public boolean isEnabled(ITocItem item, FLayer[] selectedItems) {

                return true;

        }

        public boolean isVisible(ITocItem item, FLayer[] selectedItems) {

                return isTocItemLeaf(item);

        }

        public void execute(ITocItem item, FLayer[] selectedItems) {

                boolean showDialog = isTocItemLeaf(item);

                if (!showDialog) {

                        return;

                }

                try {

                        if(!(selectedItems[0] instanceof FLyrVect))

                                return;

                        FLyrVect layer = (FLyrVect) selectedItems[0];

                        ISymbol oldSymbol = ((TocItemLeaf) item).getSymbol();

                        // patch, figure out an ellegant way to solve this

                        if (oldSymbol instanceof MultiLayerFillSymbol) {

                                MultiLayerFillSymbol ms = (MultiLayerFillSymbol) oldSymbol;

                                for (int i = 0; i < ms.getLayerCount(); i++) {

                                        if (ms.getLayer(i).getClass().getName().equals("org.gvsig.symbology.symbols.DotDensityFillSymbol")) {

                                                /*

                                                 * since dot density symbol works together with the

                                                 * legend, there is no way to edit it from the symbol selector and editor

                                                 * we have to break now!

                                                 */

                                                return;

                                        }

                                }

                        }

                        // end patch

                        int shapeType = ((IVectorLegend) layer.getLegend()).getShapeType();

                        if (shapeType == 0) {

                                logger.debug("Error legend " + layer.getLegend()

                        + " does not have shapetype initialized");

                                shapeType = layer.getShapeType();

                        }

                        ISymbolSelector symSel = null;

                        try {

                                symSel = SymbolSelector.createSymbolSelector(oldSymbol, shapeType);

                        } catch (IllegalArgumentException iaEx) {

                                /*

                                 * this usually happens when the Legend has a composed

                                 * symbol that collides with the normal operation and

                                 * it only can be changed from the panel of the legend

                                 */

                                // TODO throw a signal and show a warning message box telling

                                // that the operation cannot be performed

                                return;

                        }

                        PluginServices.getMDIManager().addWindow(symSel);

                        ISymbol newSymbol = (ISymbol) symSel.getSelectedObject();

                        if (newSymbol == null) {

                                return;

                        }

                        newSymbol.setDescription(oldSymbol.getDescription());

                        for (int i = 0; i < selectedItems.length; i++) {

                                FLyrVect theLayer = ((FLyrVect) selectedItems[i]);

                                try {

                                        ILegend legend = theLayer.getLegend();

                                        if (legend instanceof IClassifiedVectorLegend) {

                                                IClassifiedVectorLegend cv = (IClassifiedVectorLegend) legend;

                                                cv.replace(oldSymbol, newSymbol);

                                        } else if (legend instanceof ISingleSymbolLegend) {

                                                ISingleSymbolLegend ss = (ISingleSymbolLegend) legend;

                                                ss.setDefaultSymbol(newSymbol);

                                        }

                                } catch (Exception e) {

                                        NotificationManager.addWarning(PluginServices.getText(this, "skipped_symbol_changed_for_layer")+": "+theLayer.getName(), e);

                                }

                        }

                     // refresh view treak

                        MapContext mc = layer.getMapContext();

                        mc.invalidate();

                        Project project=((ProjectExtension)PluginServices.getExtension(ProjectExtension.class)).getProject();

                        project.setModified(true);

                        mc.callLegendChanged();

                } catch (ReadException e) {

                        NotificationManager.addError(PluginServices.getText(this, "getting_shape_type"), e);

                }

        }

}