Java tutorial
/*---------------- FILE HEADER ------------------------------------------ This file is part of deegree. Copyright (C) 2001-2007 by: Department of Geography, University of Bonn http://www.giub.uni-bonn.de/deegree/ lat/lon GmbH http://www.lat-lon.de This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Contact: Andreas Poth lat/lon GmbH Aennchenstr. 19 53177 Bonn Germany E-Mail: poth@lat-lon.de Prof. Dr. Klaus Greve Department of Geography University of Bonn Meckenheimer Allee 166 53115 Bonn Germany E-Mail: greve@giub.uni-bonn.de ---------------------------------------------------------------------------*/ package org.deegree.igeo.views.swing.style; import static org.deegree.igeo.i18n.Messages.get; import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.net.MalformedURLException; import java.net.URL; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.Map; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JOptionPane; import javax.swing.JPanel; import org.deegree.igeo.ChangeListener; import org.deegree.igeo.ValueChangedEvent; import org.deegree.igeo.settings.GraphicOptions; import org.deegree.igeo.style.model.GraphicSymbol; import org.deegree.igeo.style.model.SldValues; import org.deegree.igeo.style.model.Symbol; import org.deegree.igeo.style.model.WellKnownMark; import org.deegree.igeo.views.swing.style.renderer.SymbolRenderer; import org.deegree.igeo.views.swing.util.panels.PanelDialog; import com.jgoodies.forms.builder.DefaultFormBuilder; import com.jgoodies.forms.layout.CellConstraints; import com.jgoodies.forms.layout.FormLayout; /** * <code>SymbolPanel</code> * * @author <a href="mailto:buesching@lat-lon.de">Lyn Buesching</a> * @author last edited by: $Author$ * * @version $Revision$, $Date$ * */ public class SymbolPanel extends JPanel implements ActionListener { private static final long serialVersionUID = 5235268293678456809L; private ChangeListener changeListener; private GraphicOptions graphicOptions; private JComboBox markCB; private JButton editSymbolsBt; /** * @param graphicOptions * the graphic options */ public SymbolPanel(GraphicOptions graphicOptions) { this(null, graphicOptions); } /** * @param changeListener * the change listener to inform when the selected symbol has changed * @param graphicOptions * the graphic options */ public SymbolPanel(ChangeListener changeListener, GraphicOptions graphicOptions) { this.changeListener = changeListener; this.graphicOptions = graphicOptions; setLayout(new BorderLayout()); init(); updateSymbolMarkCB(); } /** * selectes the entry with this sld name * * @param wellKnownName * the name of the mark */ public void setValue(String wellKnownName) { for (int i = 0; i < markCB.getItemCount(); i++) { Object item = markCB.getItemAt(i); if (item instanceof WellKnownMark && ((WellKnownMark) item).getSldName().equals(wellKnownName)) { markCB.setSelectedIndex(i); break; } } } public Symbol getValue() { return (Symbol) markCB.getSelectedItem(); } /** * selects the entry with the same url if available, otherwise the URL will be added as Symbol to the settings * * @param onlineResource * the url of the external graphic * @param title * the title of the symbol, may be <code>null</code>, than the onlineresource is the title */ public void setValue(URL onlineResource, String title) { if (title == null) title = onlineResource.getFile(); try { GraphicSymbol graphicSymbol = graphicOptions.getSymbolDefinition(title, onlineResource); if (graphicSymbol == null) { graphicOptions.addSymbolDefinition(title, onlineResource.toExternalForm()); graphicSymbol = graphicOptions.getSymboldefinition(title); } updateSymbolMarkCB(); markCB.setSelectedItem(graphicSymbol); } catch (MalformedURLException e) { JOptionPane.showMessageDialog(this, get("$MD10789"), get("$DI10017"), JOptionPane.ERROR_MESSAGE); } } private void init() { // init // well known markCB = new JComboBox(); markCB.setRenderer(new SymbolRenderer()); markCB.addActionListener(this); editSymbolsBt = new JButton(get("$MD11835")); editSymbolsBt.addActionListener(this); // layout FormLayout fl = new FormLayout("fill:default:grow(1)", "$cpheight, $btheight"); DefaultFormBuilder builder = new DefaultFormBuilder(fl); CellConstraints cc = new CellConstraints(); builder.add(markCB, cc.xy(1, 1, CellConstraints.CENTER, CellConstraints.FILL)); builder.add(editSymbolsBt, cc.xy(1, 2, CellConstraints.CENTER, CellConstraints.CENTER)); add(builder.getPanel()); } private void updateSymbolMarkCB() { Object selectedItem = markCB.getSelectedItem(); markCB.removeAllItems(); for (WellKnownMark mark : SldValues.getWellKnownMarks()) { markCB.addItem(mark); } try { Map<String, GraphicSymbol> symbols = graphicOptions.getSymbolDefinitions(); List<GraphicSymbol> values = new ArrayList<GraphicSymbol>(); values.addAll(symbols.values()); Collections.sort((List<GraphicSymbol>) values); for (GraphicSymbol gs : values) { markCB.addItem(gs); } if (selectedItem != null) markCB.setSelectedItem(selectedItem); } catch (MalformedURLException e) { JOptionPane.showMessageDialog(this, get("$MD10788"), get("$DI10017"), JOptionPane.ERROR_MESSAGE); } } // ////////////////////////////////////////////////////////////////////////////// // ACTIONLISTENER // ////////////////////////////////////////////////////////////////////////////// /* * (non-Javadoc) * * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent) */ public void actionPerformed(ActionEvent e) { if (e.getSource() == markCB && changeListener != null) { changeListener.valueChanged(new SymbolChangedEvent((Symbol) markCB.getSelectedItem())); } else if (e.getSource() == editSymbolsBt) { PanelDialog dlg = new PanelDialog(new EditSymbollibraryPanel(graphicOptions), false); dlg.setLocationRelativeTo(this); dlg.setVisible(true); updateSymbolMarkCB(); } } public class SymbolChangedEvent extends ValueChangedEvent { private Symbol symbol; public SymbolChangedEvent(Symbol symbol) { this.symbol = symbol; } @Override public Object getValue() { return symbol; } } }