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 java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.ArrayList; import java.util.List; import javax.swing.BorderFactory; import javax.swing.ButtonGroup; import javax.swing.JPanel; import javax.swing.JRadioButton; import javax.swing.border.CompoundBorder; import javax.vecmath.Point2d; import org.deegree.igeo.ChangeListener; import org.deegree.igeo.ValueChangedEvent; import com.jgoodies.forms.builder.DefaultFormBuilder; import com.jgoodies.forms.factories.Borders; import com.jgoodies.forms.layout.FormLayout; /** * <code>AnchorPointDefinitionPanel</code> * * @author <a href="mailto:buesching@lat-lon.de">Lyn Buesching</a> * @author last edited by: $Author$ * * @version $Revision$, $Date$ * */ public class AnchorPointDefinitionPanel extends JPanel implements ActionListener { private static final long serialVersionUID = -3572232686137649409L; private List<ChangeListener> changeListener = new ArrayList<ChangeListener>(); private List<PointRadioButton> rbList = new ArrayList<PointRadioButton>(); private PointRadioButton tr = new PointRadioButton(new Point2d(1, 1)); private PointRadioButton mr = new PointRadioButton(new Point2d(1, 0.5)); private PointRadioButton dr = new PointRadioButton(new Point2d(1, 0)); private PointRadioButton tc = new PointRadioButton(new Point2d(0.5, 1)); private PointRadioButton mc = new PointRadioButton(new Point2d(0.5, 0.5)); private PointRadioButton dc = new PointRadioButton(new Point2d(0.5, 0)); private PointRadioButton tl = new PointRadioButton(new Point2d(0, 1)); private PointRadioButton ml = new PointRadioButton(new Point2d(0, 0.5)); private PointRadioButton dl = new PointRadioButton(new Point2d(0, 0)); private JRadioButton rbToDeselectOther = new JRadioButton(); public AnchorPointDefinitionPanel() { Dimension dim = new Dimension(140, 70); this.setMinimumSize(dim); this.setMaximumSize(dim); this.setPreferredSize(dim); CompoundBorder cb = BorderFactory.createCompoundBorder(BorderFactory.createRaisedBevelBorder(), BorderFactory.createLoweredBevelBorder()); this.setBorder(cb); JPanel rbPanel = getAnchorPointDefinitionPanel(); rbPanel.setBackground(new Color(1f, 1f, 1f, 0.0f)); this.setLayout(new BorderLayout()); this.add(rbPanel, BorderLayout.CENTER); } /* * (non-Javadoc) * * @see javax.swing.JComponent#paintComponent(java.awt.Graphics) */ @Override protected void paintComponent(Graphics g) { super.paintComponent(g); g.drawLine(16, 16, 124, 16); g.drawLine(124, 16, 124, 54); g.drawLine(124, 54, 16, 54); g.drawLine(16, 54, 16, 16); } private JPanel getAnchorPointDefinitionPanel() { this.rbList.add(this.tl); this.rbList.add(this.tc); this.rbList.add(this.tr); this.rbList.add(this.ml); this.rbList.add(this.mc); this.rbList.add(this.mr); this.rbList.add(this.dl); this.rbList.add(this.dc); this.rbList.add(this.dr); // init ButtonGroup bg = new ButtonGroup(); for (JRadioButton rb : this.rbList) { rb.setPreferredSize(new Dimension(12, 12)); bg.add(rb); rb.addActionListener(this); } // invisible RadioButton to 'deselect' visible RadioButtons this.rbToDeselectOther.setVisible(false); bg.add(rbToDeselectOther); // layout FormLayout fl = new FormLayout("5px, left:30px, 10px, center:40px:grow(1.0), 10px, right:30px, 5px", "5px, top:17px, center:16px:grow(1.0), bottom:17px, 5px"); DefaultFormBuilder builder = new DefaultFormBuilder(fl); builder.setBorder(Borders.createEmptyBorder("0dlu, 0dlu, 0dlu, 0dlu")); builder.nextLine(); builder.nextColumn(); builder.append(this.tl); builder.append(this.tc); builder.append(this.tr); builder.nextLine(); builder.nextColumn(); builder.append(this.ml); builder.append(this.mc); builder.append(this.mr); builder.nextLine(); builder.nextColumn(); builder.append(this.dl); builder.append(this.dc); builder.append(this.dr); return builder.getPanel(); } /** * Selects the corresponding radioButton, if there is one. Does not trigger an ChangeEvent! * * @param point * */ public void setValue(Point2d point) { boolean found = false; for (PointRadioButton rb : rbList) { if (rb.getPoint().equals(point)) { rb.setSelected(true); found = true; } } if (!found) { this.rbToDeselectOther.setSelected(true); } } /** * @param changeListener * the change Listener, to be informed, when anchor point has changed */ public void addChangeListener(ChangeListener changeListener) { this.changeListener.add(changeListener); } /** * @param changeListener * the changeListener to remove from the list of change listeners */ public void removeChangeListener(ChangeListener changeListener) { this.changeListener.remove(changeListener); } // ////////////////////////////////////////////////////////////////////////////// // ACTIONLISTENER // ////////////////////////////////////////////////////////////////////////////// /* * (non-Javadoc) * * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent) */ public void actionPerformed(ActionEvent e) { Point2d value = new Point2d(0, 0); for (PointRadioButton rb : rbList) { if (e.getSource() == rb) { value = rb.getPoint(); } } for (ChangeListener cl : changeListener) { cl.valueChanged(new PointChangedEvent(value)); } } // ////////////////////////////////////////////////////////////////////////////// // INNERCLASSES // ////////////////////////////////////////////////////////////////////////////// /** * A PointChangedEvent will be fired, when the selection of a radio button has changed. */ private class PointChangedEvent extends ValueChangedEvent { private Point2d value; public PointChangedEvent(Point2d value) { this.value = value; } /* * (non-Javadoc) * * @see org.deegree.igeo.ValueChangedEvent#getValue() */ @Override public Object getValue() { return value; } } private class PointRadioButton extends JRadioButton { private static final long serialVersionUID = -8673609868450582534L; private Point2d point; public PointRadioButton(Point2d point) { this.point = point; } /** * @return the point */ public Point2d getPoint() { return point; } } }