Bug fixes and startup checks

ChangeLog

@@ -1,4 +1,15 @@
+2009-05-28  Sampo Niskanen
+
+	* Added startup check for Java 1.6 and OpenJDK
+
+2009-05-28  Sampo Niskanen
+
+	* Fixed FixedPrecisionUnit formatting
+	* Fixed saving of transitions
+	* Fixed file dialog directory browsing
+	* Initial shift-click selects second component from figure
+	* Allow adding body components without selecting stage
+	
 2009-05-24  Sampo Niskanen  <sampo.niskanen@iki.fi>
 
 	* Initial release 0.9.0
-

build.xml

@@ -12,7 +12,7 @@
 
 	
 	<!-- The main class of the application -->
-	<property name="main-class"  value="net.sf.openrocket.gui.main.BasicFrame"/>
+	<property name="main-class"  value="net.sf.openrocket.startup.Startup"/>
 
 	
 	<!-- Classpath definition -->

html/download.html

@@ -76,7 +76,7 @@
     <p>The source code for OpenRocket is available from the
     <a href="http://openrocket.svn.sourceforge.net/viewvc/openrocket/">SourceForge SVN repository</a>.  
     It can be retrieved simply using the command</p>
-    <pre class="quote">$ svn co https://openrocket.svn.sourceforge.net/svnroot/openrocket openrocket</pre>
+    <pre class="quote">$ svn co https://openrocket.svn.sourceforge.net/svnroot/openrocket/trunk OpenRocket</pre>
     <p>The above URL may be used to connect to the repository with
     other Subversion clients as well.</p>
 

src/net/sf/openrocket/database/Database.java

@@ -5,10 +5,6 @@ import java.io.FileInputStream;
 import java.io.FilenameFilter;
 import java.io.IOException;
 import java.io.InputStream;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.security.CodeSource;
 import java.util.AbstractSet;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -24,6 +20,7 @@ import javax.swing.event.EventListenerList;
 
 import net.sf.openrocket.file.Loader;
 import net.sf.openrocket.util.ChangeSource;
+import net.sf.openrocket.util.JarUtil;
 
 
 
@@ -183,16 +180,8 @@ public class Database<T extends Comparable<T>> extends AbstractSet<T> implements
 			dir += "/";
 		}
 		
-		// Find the jar file this class is contained in and open it
+		// Find and open the jar file this class is contained in
-		URL jarUrl = null;
+		File file = JarUtil.getCurrentJarFile();
-		CodeSource codeSource = Database.class.getProtectionDomain().getCodeSource();
-		if (codeSource != null)
-			jarUrl = codeSource.getLocation();
-		
-		if (jarUrl == null) {
-			throw new IOException("Could not find containing JAR file.");
-		}
-		File file = urlToFile(jarUrl);
 		JarFile jarFile = new JarFile(file);
 		
 		try {
@@ -219,22 +208,6 @@ public class Database<T extends Comparable<T>> extends AbstractSet<T> implements
 	}
 	
 	
-	static File urlToFile(URL url) {
-		URI uri;
-		try {
-			uri = url.toURI();
-		} catch (URISyntaxException e) {
-			try {
-				uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), 
-						url.getPath(), url.getQuery(), url.getRef());
-			} catch (URISyntaxException e1) {
-				throw new IllegalArgumentException("Broken URL: " + url);
-			}
-		}
-		return new File(uri);
-	}
-	
-	
 	
 	public void load(File file) throws IOException {
 		if (loader == null) {

src/net/sf/openrocket/file/openrocket/TransitionSaver.java

@@ -33,7 +33,7 @@ public class TransitionSaver extends SymmetricComponentSaver {
 
 
 		Transition.Shape shape = trans.getType();
-		elements.add("<shape>" + shape.getName().toLowerCase() + "</shape>");
+		elements.add("<shape>" + shape.name().toLowerCase() + "</shape>");
 		if (shape.isClippable()) {
 			elements.add("<shapeclipped>" + trans.isClipped() + "</shapeclipped>");
 		}

src/net/sf/openrocket/gui/ComponentAnalysisDialog.java

@@ -44,6 +44,10 @@ import net.sf.openrocket.gui.adaptors.Column;
 import net.sf.openrocket.gui.adaptors.ColumnTableModel;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.MotorConfigurationModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.ResizeLabel;
+import net.sf.openrocket.gui.components.StageSelector;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.gui.scalefigure.RocketPanel;
 import net.sf.openrocket.rocketcomponent.Configuration;
 import net.sf.openrocket.rocketcomponent.FinSet;

src/net/sf/openrocket/gui/PreferencesDialog.java

@@ -18,6 +18,7 @@ import javax.swing.JPanel;
 import javax.swing.JTabbedPane;
 
 import net.miginfocom.swing.MigLayout;
+import net.sf.openrocket.gui.components.ResizeLabel;
 import net.sf.openrocket.unit.Unit;
 import net.sf.openrocket.unit.UnitGroup;
 import net.sf.openrocket.util.GUIUtil;

src/net/sf/openrocket/gui/adaptors/MaterialModel.java

@@ -20,7 +20,7 @@ import javax.swing.event.ChangeListener;
 import net.miginfocom.swing.MigLayout;
 import net.sf.openrocket.database.Database;
 import net.sf.openrocket.database.Databases;
-import net.sf.openrocket.gui.UnitSelector;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.ComponentChangeEvent;
 import net.sf.openrocket.rocketcomponent.RocketComponent;

src/net/sf/openrocket/gui/adaptors/MotorConfigurationModel.java

@@ -30,8 +30,8 @@ import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.ResizeLabel;
 import net.sf.openrocket.gui.TextFieldListener;
+import net.sf.openrocket.gui.components.ResizeLabel;
 import net.sf.openrocket.rocketcomponent.ComponentChangeEvent;
 import net.sf.openrocket.rocketcomponent.Configuration;
 import net.sf.openrocket.rocketcomponent.Motor;

src/net/sf/openrocket/gui/components/BasicSlider.java

@@ -1,4 +1,4 @@
-package net.sf.openrocket.gui;
+package net.sf.openrocket.gui.components;
 
 import javax.swing.BoundedRangeModel;
 import javax.swing.JSlider;

src/net/sf/openrocket/gui/components/DescriptionArea.java

@@ -1,4 +1,4 @@
-package net.sf.openrocket.gui;
+package net.sf.openrocket.gui.components;
 
 import java.awt.Dimension;
 import java.awt.Rectangle;

src/net/sf/openrocket/gui/components/ResizeLabel.java

@@ -1,4 +1,4 @@
-package net.sf.openrocket.gui;
+package net.sf.openrocket.gui.components;
 
 import java.awt.Font;
 import javax.swing.JLabel;

src/net/sf/openrocket/gui/components/StageSelector.java

@@ -1,4 +1,4 @@
-package net.sf.openrocket.gui;
+package net.sf.openrocket.gui.components;
 
 import java.awt.event.ActionEvent;
 import java.util.ArrayList;

src/net/sf/openrocket/gui/components/URLLabel.java

@@ -0,0 +1,51 @@
+package net.sf.openrocket.gui.components;
+
+import java.awt.Desktop;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import javax.swing.JLabel;
+
+/**
+ * A label of a URL that is clickable.  Clicking the URL will launch the URL in
+ * the default browser if the Desktop class is supported.
+ * 
+ * @author Sampo Niskanen <sampo.niskanen@iki.fi>
+ */
+public class URLLabel extends JLabel {
+	
+	private final String url;
+	
+	public URLLabel(String urlLabel) {
+		super();
+		
+		this.url = urlLabel;
+		
+
+		if (Desktop.isDesktopSupported()) {
+			
+			setText("<html><a href=\"" + url + "\">" + url + "</a>");
+
+			this.addMouseListener(new MouseAdapter() {
+				@Override
+				public void mouseClicked(MouseEvent e) {
+					Desktop d = Desktop.getDesktop();
+					try {
+						d.browse(new URI(url));
+					} catch (URISyntaxException e1) {
+						throw new RuntimeException("BUG: Illegal URL: " + url, e1);
+					} catch (IOException e1) {
+						System.err.println("Unable to launch browser:");
+						e1.printStackTrace();
+					}
+				}
+			});
+			
+		} else {
+			setText(url);
+		}
+	}
+}

src/net/sf/openrocket/gui/components/UnitSelector.java

@@ -1,4 +1,4 @@
-package net.sf.openrocket.gui;
+package net.sf.openrocket.gui.components;
 
 
 import java.awt.Color;

src/net/sf/openrocket/gui/configdialog/BodyTubeConfig.java

@@ -7,11 +7,11 @@ import javax.swing.JPanel;
 import javax.swing.JSpinner;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.BooleanModel;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.BodyTube;
 import net.sf.openrocket.rocketcomponent.RocketComponent;

src/net/sf/openrocket/gui/configdialog/EllipticalFinSetConfig.java

@@ -14,12 +14,12 @@ import javax.swing.SwingConstants;
 import javax.swing.SwingUtilities;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
 import net.sf.openrocket.gui.adaptors.IntegerModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.FinSet;
 import net.sf.openrocket.rocketcomponent.FreeformFinSet;

src/net/sf/openrocket/gui/configdialog/FreeformFinSetConfig.java

@@ -17,13 +17,13 @@ import javax.swing.SwingConstants;
 import javax.swing.table.AbstractTableModel;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
-import net.sf.openrocket.gui.ResizeLabel;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
 import net.sf.openrocket.gui.adaptors.IntegerModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.ResizeLabel;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.gui.scalefigure.FinPointFigure;
 import net.sf.openrocket.gui.scalefigure.ScaleScrollPane;
 import net.sf.openrocket.gui.scalefigure.ScaleSelector;

src/net/sf/openrocket/gui/configdialog/InnerTubeConfig.java

@@ -26,11 +26,11 @@ import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.Resettable;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.rocketcomponent.ClusterConfiguration;
 import net.sf.openrocket.rocketcomponent.Clusterable;
 import net.sf.openrocket.rocketcomponent.InnerTube;

src/net/sf/openrocket/gui/configdialog/LaunchLugConfig.java

@@ -7,11 +7,11 @@ import javax.swing.JPanel;
 import javax.swing.JSpinner;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.unit.UnitGroup;

src/net/sf/openrocket/gui/configdialog/MassComponentConfig.java

@@ -11,11 +11,11 @@ import javax.swing.JPanel;
 import javax.swing.JSpinner;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.rocketcomponent.MassComponent;
 import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.unit.UnitGroup;

src/net/sf/openrocket/gui/configdialog/MotorConfig.java

@@ -17,13 +17,13 @@ import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.BooleanModel;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
 import net.sf.openrocket.gui.adaptors.MotorConfigurationModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.gui.main.MotorChooserDialog;
 import net.sf.openrocket.rocketcomponent.Configuration;
 import net.sf.openrocket.rocketcomponent.Motor;

src/net/sf/openrocket/gui/configdialog/NoseConeConfig.java

@@ -12,12 +12,12 @@ import javax.swing.JSlider;
 import javax.swing.JSpinner;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
-import net.sf.openrocket.gui.DescriptionArea;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.BooleanModel;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.DescriptionArea;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.NoseCone;
 import net.sf.openrocket.rocketcomponent.RocketComponent;

src/net/sf/openrocket/gui/configdialog/ParachuteConfig.java

@@ -11,13 +11,13 @@ import javax.swing.JPanel;
 import javax.swing.JSpinner;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
 import net.sf.openrocket.gui.adaptors.IntegerModel;
 import net.sf.openrocket.gui.adaptors.MaterialModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.MassComponent;
 import net.sf.openrocket.rocketcomponent.Parachute;

src/net/sf/openrocket/gui/configdialog/RingComponentConfig.java

@@ -12,11 +12,11 @@ import javax.swing.JPanel;
 import javax.swing.JSpinner;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.RingComponent;
 import net.sf.openrocket.rocketcomponent.RocketComponent;

src/net/sf/openrocket/gui/configdialog/RocketComponentConfig.java

@@ -25,14 +25,14 @@ import javax.swing.JTextArea;
 import javax.swing.JTextField;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
-import net.sf.openrocket.gui.ResizeLabel;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.BooleanModel;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
 import net.sf.openrocket.gui.adaptors.MaterialModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.ResizeLabel;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.ComponentAssembly;
 import net.sf.openrocket.rocketcomponent.ExternalComponent;

src/net/sf/openrocket/gui/configdialog/ShockCordConfig.java

@@ -7,11 +7,11 @@ import javax.swing.JPanel;
 import javax.swing.JSpinner;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.unit.UnitGroup;

src/net/sf/openrocket/gui/configdialog/StreamerConfig.java

@@ -12,13 +12,13 @@ import javax.swing.JPanel;
 import javax.swing.JSpinner;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
-import net.sf.openrocket.gui.ResizeLabel;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
 import net.sf.openrocket.gui.adaptors.MaterialModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.ResizeLabel;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.MassComponent;
 import net.sf.openrocket.rocketcomponent.RocketComponent;

src/net/sf/openrocket/gui/configdialog/TransitionConfig.java

@@ -11,12 +11,12 @@ import javax.swing.JPanel;
 import javax.swing.JSpinner;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
-import net.sf.openrocket.gui.DescriptionArea;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.BooleanModel;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.DescriptionArea;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.rocketcomponent.Transition;

src/net/sf/openrocket/gui/configdialog/TrapezoidFinSetConfig.java

@@ -9,12 +9,12 @@ import javax.swing.JSpinner;
 import javax.swing.SwingConstants;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.BasicSlider;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.EnumModel;
 import net.sf.openrocket.gui.adaptors.IntegerModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.material.Material;
 import net.sf.openrocket.rocketcomponent.FinSet;
 import net.sf.openrocket.rocketcomponent.RocketComponent;

src/net/sf/openrocket/gui/dialogs/BugDialog.java

@@ -0,0 +1,90 @@
+package net.sf.openrocket.gui.dialogs;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+import javax.swing.JButton;
+import javax.swing.JDialog;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTextArea;
+
+import net.miginfocom.swing.MigLayout;
+import net.sf.openrocket.gui.components.URLLabel;
+import net.sf.openrocket.gui.main.AboutDialog;
+import net.sf.openrocket.util.GUIUtil;
+import net.sf.openrocket.util.JarUtil;
+import net.sf.openrocket.util.Prefs;
+
+public class BugDialog extends JDialog {
+
+	public BugDialog(JFrame parent) {
+		super(parent, "Bug reporing", true);
+		
+		JPanel panel = new JPanel(new MigLayout("fill"));
+		
+		panel.add(new JLabel("Please report any bugs you encounter as instructed at "), 
+				"gap para, split 2");
+		panel.add(new URLLabel(AboutDialog.OPENROCKET_URL), "wrap rel");
+		panel.add(new JLabel("This allows us to make OpenRocket an even better simulator."),
+				"gap para, wrap para");
+		
+		panel.add(new JLabel("<html><em>Please copy and paste the following information " +
+				"to the end of your bug report:</em>"), "gap para, wrap");
+		
+		
+		StringBuilder sb = new StringBuilder();
+		sb.append('\n');
+		sb.append("---------- Included system information ----------\n");
+		sb.append("OpenRocket version: " + Prefs.getVersion() + "\n");
+		sb.append("OpenRocket location: " + JarUtil.getCurrentJarFile() + "\n");
+		sb.append("System properties:\n");
+
+		// Sort the keys
+		SortedSet<String> keys = new TreeSet<String>();
+		for (Object key: System.getProperties().keySet()) {
+			keys.add((String)key);
+		}
+		
+		for (String key: keys) {
+			String value = System.getProperty(key);
+			sb.append("  " + key + "=");
+			if (key.equals("line.separator")) {
+				for (char c: value.toCharArray()) {
+					sb.append(String.format("\\u%04x", (int)c));
+				}
+			} else {
+				sb.append(value);
+			}
+			sb.append('\n');
+		}
+		
+		sb.append("---------- End system information ----------\n");
+		sb.append('\n');
+
+		JTextArea text = new JTextArea(sb.toString(), 15, 70);
+		text.setEditable(false);
+		panel.add(new JScrollPane(text), "grow, wrap para");
+		
+		JButton close = new JButton("Close");
+		close.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				BugDialog.this.dispose();
+			}
+		});
+		panel.add(close, "right");
+
+		this.add(panel);
+		
+		this.pack();
+		this.setLocationRelativeTo(parent);
+		GUIUtil.installEscapeCloseOperation(this);
+		GUIUtil.setDefaultButton(close);
+	}
+
+}

src/net/sf/openrocket/gui/main/AboutDialog.java

@@ -1,22 +1,16 @@
 package net.sf.openrocket.gui.main;
 
-import java.awt.Desktop;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseEvent;
-import java.io.IOException;
-import java.net.URI;
-import java.net.URISyntaxException;
 
 import javax.swing.JButton;
 import javax.swing.JDialog;
 import javax.swing.JFrame;
-import javax.swing.JLabel;
 import javax.swing.JPanel;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.ResizeLabel;
+import net.sf.openrocket.gui.components.ResizeLabel;
+import net.sf.openrocket.gui.components.URLLabel;
 import net.sf.openrocket.util.GUIUtil;
 import net.sf.openrocket.util.Prefs;
 
@@ -37,33 +31,7 @@ public class AboutDialog extends JDialog {
 		
 		panel.add(new ResizeLabel("Copyright \u00A9 2007-2009 Sampo Niskanen"), "ax 50%, wrap para");
 		
-		JLabel link;
+		panel.add(new URLLabel(OPENROCKET_URL), "ax 50%, wrap para");
-		
-		if (Desktop.isDesktopSupported()) {
-			
-			link = new JLabel("<html><a href=\"" + OPENROCKET_URL + "\">" +
-					OPENROCKET_URL + "</a>");
-			link.addMouseListener(new MouseAdapter() {
-				@Override
-				public void mouseClicked(MouseEvent e) {
-					Desktop d = Desktop.getDesktop();
-					try {
-						d.browse(new URI(OPENROCKET_URL));
-						
-					} catch (URISyntaxException e1) {
-						throw new RuntimeException("BUG: Illegal OpenRocket URL: "+OPENROCKET_URL,
-								e1);
-					} catch (IOException e1) {
-						System.err.println("Unable to launch browser:");
-						e1.printStackTrace();
-					}
-				}
-			});
-			
-		} else {
-			link = new JLabel(OPENROCKET_URL);
-		}
-		panel.add(link, "ax 50%, wrap para");
 		
 
 		JButton close = new JButton("Close");

src/net/sf/openrocket/gui/main/BasicFrame.java

@@ -59,6 +59,7 @@ import net.sf.openrocket.gui.ComponentAnalysisDialog;
 import net.sf.openrocket.gui.PreferencesDialog;
 import net.sf.openrocket.gui.StorageOptionChooser;
 import net.sf.openrocket.gui.configdialog.ComponentConfigDialog;
+import net.sf.openrocket.gui.dialogs.BugDialog;
 import net.sf.openrocket.gui.scalefigure.RocketPanel;
 import net.sf.openrocket.rocketcomponent.ComponentChangeEvent;
 import net.sf.openrocket.rocketcomponent.ComponentChangeListener;
@@ -87,6 +88,8 @@ public class BasicFrame extends JFrame {
 		}
 		@Override
 		public boolean accept(File f) {
+			if (f.isDirectory())
+				return true;
 			String name = f.getName().toLowerCase();
 			return name.endsWith(".ork") || name.endsWith(".ork.gz");
 		}
@@ -117,7 +120,8 @@ public class BasicFrame extends JFrame {
 	
 	private RocketPanel rocketpanel;
 	private ComponentTree tree = null;
-	private final TreeSelectionModel selectionModel;
+	private final TreeSelectionModel componentSelectionModel;
+	// private final ListSelectionModel simulationSelectionModel; ...
 	
 	/** Actions available for rocket modifications */
 	private final RocketActions actions;
@@ -147,10 +151,10 @@ public class BasicFrame extends JFrame {
 		
 		
 		// Create the selection model that will be used
-		selectionModel = new DefaultTreeSelectionModel();
+		componentSelectionModel = new DefaultTreeSelectionModel();
-		selectionModel.setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
+		componentSelectionModel.setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
 		
-		actions = new RocketActions(document, selectionModel, this);
+		actions = new RocketActions(document, componentSelectionModel, this);
 		
 		
 		// The main vertical split pane		
@@ -232,7 +236,7 @@ public class BasicFrame extends JFrame {
 		JPanel panel = new JPanel(new MigLayout("fill, flowy","","[grow]"));
 
 		tree = new ComponentTree(rocket);
-		tree.setSelectionModel(selectionModel);
+		tree.setSelectionModel(componentSelectionModel);
 
 		// Remove JTree key events that interfere with menu accelerators
 		InputMap im = SwingUtilities.getUIInputMap(tree, JComponent.WHEN_FOCUSED);
@@ -265,10 +269,10 @@ public class BasicFrame extends JFrame {
 		tree.addMouseListener(ml);
 
 		// Update dialog when selection is changed
-		selectionModel.addTreeSelectionListener(new TreeSelectionListener() {
+		componentSelectionModel.addTreeSelectionListener(new TreeSelectionListener() {
 			public void valueChanged(TreeSelectionEvent e) {
 				// Scroll tree to the selected item
-				TreePath path = selectionModel.getSelectionPath();
+				TreePath path = componentSelectionModel.getSelectionPath();
 				if (path == null)
 					return;
 				tree.scrollPathToVisible(path);
@@ -313,7 +317,7 @@ public class BasicFrame extends JFrame {
 
 		scroll = new JScrollPane(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
 				ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
-		scroll.setViewportView(new ComponentAddButtons(document, selectionModel,
+		scroll.setViewportView(new ComponentAddButtons(document, componentSelectionModel,
 				scroll.getViewport()));
 		scroll.setBorder(null);
 		scroll.setViewportBorder(null);
@@ -513,6 +517,8 @@ public class BasicFrame extends JFrame {
 		menu.getAccessibleContext().setAccessibleDescription("Information about OpenRocket");
 		menubar.add(menu);
 		
+		
+		
 		item = new JMenuItem("License",KeyEvent.VK_L);
 		item.getAccessibleContext().setAccessibleDescription("OpenRocket license information");
 		item.addActionListener(new ActionListener() {
@@ -522,6 +528,16 @@ public class BasicFrame extends JFrame {
 		});
 		menu.add(item);
 		
+		item = new JMenuItem("Bug report",KeyEvent.VK_B);
+		item.getAccessibleContext().setAccessibleDescription("Information about reporting " +
+				"bugs in OpenRocket");
+		item.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				new BugDialog(BasicFrame.this).setVisible(true);
+			}
+		});
+		menu.add(item);
+		
 		item = new JMenuItem("About",KeyEvent.VK_A);
 		item.getAccessibleContext().setAccessibleDescription("About OpenRocket");
 		item.addActionListener(new ActionListener() {
@@ -537,14 +553,13 @@ public class BasicFrame extends JFrame {
 	
 	
 	
-	// TODO: HIGH: Remember last directory on open/save
 	
 	private void openAction() {
 	    JFileChooser chooser = new JFileChooser();
 	    chooser.setFileFilter(ROCKET_DESIGN_FILTER);
 	    chooser.setMultiSelectionEnabled(true);
 	    chooser.setCurrentDirectory(Prefs.getDefaultDirectory());
-	    if (chooser.showOpenDialog(BasicFrame.this) != JFileChooser.APPROVE_OPTION)
+	    if (chooser.showOpenDialog(this) != JFileChooser.APPROVE_OPTION)
 	    	return;
 	    
 	    Prefs.setDefaultDirectory(chooser.getCurrentDirectory());

src/net/sf/openrocket/gui/main/ComponentAddButtons.java

@@ -26,7 +26,7 @@ import javax.swing.tree.TreeSelectionModel;
 
 import net.miginfocom.swing.MigLayout;
 import net.sf.openrocket.document.OpenRocketDocument;
-import net.sf.openrocket.gui.ResizeLabel;
+import net.sf.openrocket.gui.components.ResizeLabel;
 import net.sf.openrocket.gui.configdialog.ComponentConfigDialog;
 import net.sf.openrocket.rocketcomponent.BodyComponent;
 import net.sf.openrocket.rocketcomponent.BodyTube;
@@ -40,12 +40,14 @@ import net.sf.openrocket.rocketcomponent.LaunchLug;
 import net.sf.openrocket.rocketcomponent.MassComponent;
 import net.sf.openrocket.rocketcomponent.NoseCone;
 import net.sf.openrocket.rocketcomponent.Parachute;
+import net.sf.openrocket.rocketcomponent.Rocket;
 import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.rocketcomponent.ShockCord;
 import net.sf.openrocket.rocketcomponent.Streamer;
 import net.sf.openrocket.rocketcomponent.Transition;
 import net.sf.openrocket.rocketcomponent.TrapezoidFinSet;
 import net.sf.openrocket.rocketcomponent.TubeCoupler;
+import net.sf.openrocket.util.Pair;
 import net.sf.openrocket.util.Prefs;
 
 /**
@@ -94,20 +96,6 @@ public class ComponentAddButtons extends JPanel implements Scrollable {
 		
 		////////////////////////////////////////////
 		
-//		addButtonRow("Body components",row,
-//				new ComponentButton(NoseCone.class,"Nose cone") {
-//					@Override
-//					public boolean isAddable(RocketComponent c) {
-//						if (!(c instanceof ComponentAssembly))
-//							return false;
-//						if (c.getSiblingCount() == 0)
-//							return true;
-//						return false;
-//					}
-//				},
-//				new BodyComponentButton(BodyTube.class,"Body tube"),
-//				new BodyComponentButton(null,"Transition"));
-		
 		
 		addButtonRow("Body components and fin sets",row,
 				new BodyComponentButton(NoseCone.class,"Nose cone"),
@@ -120,7 +108,6 @@ public class ComponentAddButtons extends JPanel implements Scrollable {
 		);
 		
 		row++;
-/////
 		
 		
 		/////////////////////////////////////////////
@@ -328,16 +315,16 @@ public class ComponentAddButtons extends JPanel implements Scrollable {
 		/**
 		 * Return the position to add the component if component c is selected currently.
 		 * The first element of the returned array is the RocketComponent to add the component
-		 * to, and the second (in any) an Integer telling the position of the component.
+		 * to, and the second (if non-null) an Integer telling the position of the component.
 		 * A return value of null means that the user cancelled addition of the component.
-		 * If the array has only one element, the component is added at the end of the sibling 
+		 * If the Integer is null, the component is added at the end of the sibling 
 		 * list.  By default returns the end of the currently selected component.
 		 * 
 		 * @param c  The component currently selected
 		 * @return   The position to add the new component to, or null if should not add.
 		 */
-		public Object[] getAdditionPosition(RocketComponent c) {
+		public Pair<RocketComponent, Integer> getAdditionPosition(RocketComponent c) {
-			return new Object[] { c };
+			return new Pair<RocketComponent, Integer>(c, null);
 		}
 		
 		/**
@@ -381,17 +368,15 @@ public class ComponentAddButtons extends JPanel implements Scrollable {
 			TreePath p = selectionModel.getSelectionPath();
 			if (p!= null)
 				c = (RocketComponent)p.getLastPathComponent();
-			if (c != null) {
+
-				Object[] pos = getAdditionPosition(c);
+			Pair<RocketComponent, Integer> pos = getAdditionPosition(c);
-				if (pos==null || pos.length==0) {
+			if (pos==null) {
 				// Cancel addition
 				return;
 			}
+			c = pos.getU();
+			position = pos.getV();
 
-				c = (RocketComponent)pos[0];
-				if (pos.length>1)
-					position = (Integer)pos[1];
-			}
 			
 			if (c == null) {
 				// Should not occur
@@ -460,17 +445,27 @@ public class ComponentAddButtons extends JPanel implements Scrollable {
 		public boolean isAddable(RocketComponent c) {
 			if (super.isAddable(c))
 				return true;
-			if (c instanceof BodyComponent)  // Handled separately
+			// Handled separately:
+			if (c instanceof BodyComponent)
+				return true;
+			if (c == null || c instanceof Rocket)
 				return true;
 			return false;
 		}
 		
 		@Override
-		public Object[] getAdditionPosition(RocketComponent c) {
+		public Pair<RocketComponent, Integer> getAdditionPosition(RocketComponent c) {
 			if (super.isAddable(c))     // Handled automatically
 				return super.getAdditionPosition(c);
 			
-			// Handle BodyComponent separately
+			
+			if (c == null || c instanceof Rocket) {
+				// Add as last body component of the last stage
+				Rocket rocket = document.getRocket();
+				return new Pair<RocketComponent,Integer>(rocket.getChild(rocket.getStageCount()-1),
+						null);
+			}
+			
 			if (!(c instanceof BodyComponent))
 				return null;
 			RocketComponent parent = c.getParent();
@@ -492,10 +487,10 @@ public class ComponentAddButtons extends JPanel implements Scrollable {
 				return null;
 			case 1:
 				// Insert after current position
-				return new Object[] { parent, new Integer(parent.getChildPosition(c)+1) };
+				return new Pair<RocketComponent,Integer>(parent, parent.getChildPosition(c)+1);
 			case 2:
 				// Insert at the end of the parent
-				return new Object[] { parent };
+				return new Pair<RocketComponent,Integer>(parent, null);
 			default:
 				System.err.println("ERROR:  Bad position type: "+pos);
 				Thread.dumpStack();

src/net/sf/openrocket/gui/main/DocumentSelectionListener.java

@@ -0,0 +1,15 @@
+package net.sf.openrocket.gui.main;
+
+public interface DocumentSelectionListener {
+
+	public static final int COMPONENT_SELECTION_CHANGE = 1;
+	public static final int SIMULATION_SELECTION_CHANGE = 2;
+	
+	/**
+	 * Called when the selection changes.
+	 * 
+	 * @param changeType	a bitmask of the type of change.
+	 */
+	public void valueChanged(int changeType);
+	
+}

src/net/sf/openrocket/gui/main/DocumentSelectionModel.java

@@ -0,0 +1,189 @@
+package net.sf.openrocket.gui.main;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import javax.swing.ListSelectionModel;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+import javax.swing.event.TreeSelectionEvent;
+import javax.swing.event.TreeSelectionListener;
+import javax.swing.tree.TreePath;
+import javax.swing.tree.TreeSelectionModel;
+
+import net.sf.openrocket.document.OpenRocketDocument;
+import net.sf.openrocket.document.Simulation;
+import net.sf.openrocket.rocketcomponent.RocketComponent;
+
+public class DocumentSelectionModel {
+
+	private static final Simulation[] NO_SIMULATION = new Simulation[0];
+
+	private final ComponentTreeSelectionListener componentTreeSelectionListener =
+		new ComponentTreeSelectionListener();
+	private final SimulationListSelectionListener simulationListSelectionListener =
+		new SimulationListSelectionListener();
+
+	
+	private final OpenRocketDocument document;
+	
+	private RocketComponent componentSelection = null;
+	private Simulation[] simulationSelection = NO_SIMULATION;
+
+	private TreeSelectionModel componentTreeSelectionModel = null; 
+	private ListSelectionModel simulationListSelectionModel = null;
+
+	private final List<DocumentSelectionListener> listeners =
+		new ArrayList<DocumentSelectionListener>();
+
+	
+	
+	public DocumentSelectionModel(OpenRocketDocument document) {
+		this.document = document;
+	}
+	
+
+
+
+	/**
+	 * Return the currently selected simulations.  Returns an empty array if none
+	 * are selected.
+	 * 
+	 * @return	an array of the currently selected simulations, may be of zero length.
+	 */
+	public Simulation[] getSelectedSimulations() {
+		return Arrays.copyOf(simulationSelection, simulationSelection.length);
+	}
+
+	/**
+	 * Return the currently selected rocket component.  Returns <code>null</code>
+	 * if no rocket component is selected.
+	 * 
+	 * @return	the currently selected rocket component, or <code>null</code>.
+	 */
+	public RocketComponent getSelectedComponent() {
+		return componentSelection;
+	}
+
+
+
+	
+
+	public void attachComponentTreeSelectionModel(TreeSelectionModel model) {
+		if (componentTreeSelectionModel != null)
+			componentTreeSelectionModel.removeTreeSelectionListener(
+					componentTreeSelectionListener);
+
+		componentTreeSelectionModel = model;
+		if (model != null)
+			model.addTreeSelectionListener(componentTreeSelectionListener);
+		clearComponentSelection();
+	}
+	
+	
+	
+	public void attachSimulationListSelectionModel(ListSelectionModel model) {
+		if (simulationListSelectionModel != null)
+			simulationListSelectionModel.removeListSelectionListener(
+					simulationListSelectionListener);
+		
+		simulationListSelectionModel = model;
+		if (model != null)
+			model.addListSelectionListener(simulationListSelectionListener);
+		clearSimulationSelection();
+	}
+
+	
+	
+	public void clearSimulationSelection() {
+		if (simulationSelection.length == 0)
+			return;
+		
+		simulationSelection = NO_SIMULATION;
+		if (simulationListSelectionModel != null)
+			simulationListSelectionModel.clearSelection();
+		
+		fireDocumentSelection(DocumentSelectionListener.SIMULATION_SELECTION_CHANGE);
+	}
+	
+	
+	public void clearComponentSelection() {
+		if (componentSelection == null)
+			return;
+		
+		componentSelection = null;
+		if (componentTreeSelectionModel != null)
+			componentTreeSelectionModel.clearSelection();
+		
+		fireDocumentSelection(DocumentSelectionListener.COMPONENT_SELECTION_CHANGE);
+	}
+
+
+	
+	public void addDocumentSelectionListener(DocumentSelectionListener l) {
+		listeners.add(l);
+	}
+	
+	public void removeDocumentSelectionListener(DocumentSelectionListener l) {
+		listeners.remove(l);
+	}
+	
+	protected void fireDocumentSelection(int type) {
+		DocumentSelectionListener[] array = 
+			listeners.toArray(new DocumentSelectionListener[0]);
+		
+		for (DocumentSelectionListener l: array) {
+			l.valueChanged(type);
+		}
+	}
+	
+	
+	
+	private class ComponentTreeSelectionListener implements TreeSelectionListener {
+
+		@Override
+		public void valueChanged(TreeSelectionEvent e) {
+			TreePath path = componentTreeSelectionModel.getSelectionPath();
+			if (path == null) {
+				componentSelection = null;
+				fireDocumentSelection(DocumentSelectionListener.COMPONENT_SELECTION_CHANGE);
+				return;
+			}
+			
+			componentSelection = (RocketComponent)path.getLastPathComponent();
+			
+			clearSimulationSelection();
+			fireDocumentSelection(DocumentSelectionListener.COMPONENT_SELECTION_CHANGE);
+		}
+
+	}
+	
+	private class SimulationListSelectionListener implements ListSelectionListener {
+
+		@Override
+		public void valueChanged(ListSelectionEvent e) {
+			int min = simulationListSelectionModel.getMinSelectionIndex();
+			int max = simulationListSelectionModel.getMaxSelectionIndex();
+			if (min < 0 || max < 0) {
+				simulationSelection = NO_SIMULATION;
+				fireDocumentSelection(DocumentSelectionListener.SIMULATION_SELECTION_CHANGE);
+				return;
+			}
+			
+			ArrayList<Simulation> list = new ArrayList<Simulation>();
+			for (int i = min; i <= max; i++) {
+				if (simulationListSelectionModel.isSelectedIndex(i) && 
+						(i < document.getSimulationCount())) {
+					list.add(document.getSimulation(i));
+				}
+			}
+			simulationSelection = list.toArray(NO_SIMULATION);
+			
+			clearComponentSelection();
+			fireDocumentSelection(DocumentSelectionListener.SIMULATION_SELECTION_CHANGE);
+		}
+		
+	}
+
+}

src/net/sf/openrocket/gui/main/LicenseDialog.java

@@ -14,7 +14,7 @@ import javax.swing.JScrollPane;
 import javax.swing.JTextArea;
 
 import net.miginfocom.swing.MigLayout;
-import net.sf.openrocket.gui.ResizeLabel;
+import net.sf.openrocket.gui.components.ResizeLabel;
 import net.sf.openrocket.util.GUIUtil;
 
 public class LicenseDialog extends JDialog {

src/net/sf/openrocket/gui/main/MotorChooserDialog.java

@@ -32,7 +32,7 @@ import javax.swing.table.TableRowSorter;
 
 import net.miginfocom.swing.MigLayout;
 import net.sf.openrocket.database.Databases;
-import net.sf.openrocket.gui.ResizeLabel;
+import net.sf.openrocket.gui.components.ResizeLabel;
 import net.sf.openrocket.rocketcomponent.Motor;
 import net.sf.openrocket.unit.UnitGroup;
 import net.sf.openrocket.util.GUIUtil;

src/net/sf/openrocket/gui/main/OpenRocketClipboard.java

@@ -0,0 +1,35 @@
+package net.sf.openrocket.gui.main;
+
+import net.sf.openrocket.document.Simulation;
+import net.sf.openrocket.rocketcomponent.RocketComponent;
+
+public class OpenRocketClipboard {
+
+	private static Object clipboard = null;
+	
+	private OpenRocketClipboard() {
+		// Disallow instantiation
+	}
+	
+	
+	/**
+	 * Return the <code>RocketComponent</code> contained in the clipboard, or
+	 * <code>null</code>.
+	 * 
+	 * @return	the rocket component contained in the clipboard, or <code>null</code>
+	 * 			if the clipboard does not currently contain a rocket component.
+	 */
+	public static RocketComponent getComponent() {
+		if (clipboard instanceof RocketComponent) {
+			return (RocketComponent) clipboard;
+		}
+		return null;
+	}
+	
+	
+	public static Simulation[] getSimulations() {
+		return null; // TODO
+	}
+	
+	
+}

src/net/sf/openrocket/gui/main/RocketActions.java

@@ -28,7 +28,7 @@ import net.sf.openrocket.util.Pair;
 
 
 /**
- * A class that holds Actions for common rocket operations such as
+ * A class that holds Actions for common rocket and simulation operations such as
  * cut/copy/paste/delete etc.
  * 
  * @author Sampo Niskanen <sampo.niskanen@iki.fi>

src/net/sf/openrocket/gui/main/SimulationEditDialog.java

@@ -32,13 +32,13 @@ import javax.swing.event.DocumentListener;
 import net.miginfocom.swing.MigLayout;
 import net.sf.openrocket.aerodynamics.ExtendedISAModel;
 import net.sf.openrocket.document.Simulation;
-import net.sf.openrocket.gui.BasicSlider;
-import net.sf.openrocket.gui.DescriptionArea;
 import net.sf.openrocket.gui.SpinnerEditor;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.BooleanModel;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.MotorConfigurationModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.DescriptionArea;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.gui.plot.Axis;
 import net.sf.openrocket.gui.plot.PlotConfiguration;
 import net.sf.openrocket.gui.plot.PlotPanel;

src/net/sf/openrocket/gui/main/SimulationPanel.java

@@ -25,9 +25,9 @@ import net.sf.openrocket.aerodynamics.Warning;
 import net.sf.openrocket.aerodynamics.WarningSet;
 import net.sf.openrocket.document.OpenRocketDocument;
 import net.sf.openrocket.document.Simulation;
-import net.sf.openrocket.gui.ResizeLabel;
 import net.sf.openrocket.gui.adaptors.Column;
 import net.sf.openrocket.gui.adaptors.ColumnTableModel;
+import net.sf.openrocket.gui.components.ResizeLabel;
 import net.sf.openrocket.rocketcomponent.ComponentChangeEvent;
 import net.sf.openrocket.rocketcomponent.ComponentChangeListener;
 import net.sf.openrocket.simulation.FlightData;

src/net/sf/openrocket/gui/plot/PlotPanel.java

@@ -16,8 +16,8 @@ import javax.swing.SwingUtilities;
 
 import net.miginfocom.swing.MigLayout;
 import net.sf.openrocket.document.Simulation;
-import net.sf.openrocket.gui.ResizeLabel;
+import net.sf.openrocket.gui.components.ResizeLabel;
-import net.sf.openrocket.gui.UnitSelector;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.simulation.FlightDataBranch;
 import net.sf.openrocket.simulation.FlightDataBranch.Type;
 import net.sf.openrocket.unit.Unit;

src/net/sf/openrocket/gui/scalefigure/RocketPanel.java

@@ -37,11 +37,11 @@ import net.sf.openrocket.aerodynamics.FlightConditions;
 import net.sf.openrocket.aerodynamics.WarningSet;
 import net.sf.openrocket.document.OpenRocketDocument;
 import net.sf.openrocket.document.Simulation;
-import net.sf.openrocket.gui.BasicSlider;
-import net.sf.openrocket.gui.StageSelector;
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
 import net.sf.openrocket.gui.adaptors.MotorConfigurationModel;
+import net.sf.openrocket.gui.components.BasicSlider;
+import net.sf.openrocket.gui.components.StageSelector;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.gui.configdialog.ComponentConfigDialog;
 import net.sf.openrocket.gui.figureelements.CGCaret;
 import net.sf.openrocket.gui.figureelements.CPCaret;
@@ -360,7 +360,7 @@ public class RocketPanel extends JPanel implements TreeSelectionListener, Change
 	 * 
 	 * Get the components clicked.
 	 * If no component is clicked, do nothing.
-	 * If the primary currently selected component is in the set, keep it, 
+	 * If the currently selected component is in the set, keep it, 
 	 * unless the selector specified is pressed.  If it is pressed, cycle to 
 	 * the next component. Otherwise select the first component in the list. 
 	 */
@@ -399,8 +399,12 @@ public class RocketPanel extends JPanel implements TreeSelectionListener, Change
 
 		// Currently selected component not clicked
 		if (path == null) {
+			if (event.isShiftDown() && event.getClickCount()==1 && clicked.length>1) {
+				path = ComponentTreeModel.makeTreePath(clicked[1]);
+			} else {
 				path = ComponentTreeModel.makeTreePath(clicked[0]);
 			}
+		}
 		
 		// Set selection and check for double-click
 		selectionModel.setSelectionPath(path);

src/net/sf/openrocket/gui/scalefigure/ScaleScrollPane.java

@@ -23,8 +23,8 @@ import javax.swing.ScrollPaneConstants;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 
-import net.sf.openrocket.gui.UnitSelector;
 import net.sf.openrocket.gui.adaptors.DoubleModel;
+import net.sf.openrocket.gui.components.UnitSelector;
 import net.sf.openrocket.unit.Tick;
 import net.sf.openrocket.unit.Unit;
 import net.sf.openrocket.unit.UnitGroup;

src/net/sf/openrocket/startup/Startup.java

@@ -0,0 +1,180 @@
+package net.sf.openrocket.startup;
+
+import java.awt.GraphicsEnvironment;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import javax.swing.JOptionPane;
+
+
+/**
+ * A startup class that checks that a suitable JRE environment is being run.
+ * If the environment is too old the execution is canceled, and if OpenJDK is being
+ * used warns the user of problems and confirms whether to continue.
+ * <p>
+ * Note:  This class must be Java 1.4 compatible and calls the next class using
+ * only reflection.
+ * 
+ * @author Sampo Niskanen <sampo.niskanen@iki.fi>
+ */
+public class Startup {
+	
+	public static final String START_CLASS = "net.sf.openrocket.gui.main.BasicFrame";
+	
+	public static final int REQUIRED_MAJOR_VERSION = 1;
+	public static final int REQUIRED_MINOR_VERSION = 6;
+
+
+	public static void main(String[] args) {
+		
+		checkVersion();
+		checkHead();
+		checkOpenJDK();
+		
+		// Load and execute START_CLASS
+		try {
+			
+			Class cls = Class.forName(START_CLASS);
+			Method m = cls.getMethod("main", String[].class);
+			m.invoke(null, new Object[] { args });
+			
+		} catch (ClassNotFoundException e) {
+			e.printStackTrace();
+			error("Error starting main class!", "Please report a bug.");
+		} catch (NoSuchMethodException e) {
+			e.printStackTrace();
+			error("Error starting main class!", "Please report a bug.");
+		} catch (InvocationTargetException e) {
+			e.printStackTrace();
+			error("Error starting main class!", "Please report a bug.");
+		} catch (IllegalAccessException e) {
+			e.printStackTrace();
+			error("Error starting main class!", "Please report a bug.");
+		}
+
+	}
+	
+	
+	/**
+	 * Check that the JRE version is high enough.
+	 */
+	private static void checkVersion() {
+		String[] version = System.getProperty("java.specification.version", "").split("\\.");
+		
+		String jreName = System.getProperty("java.vm.name", "(unknown)");
+		String jreVersion = System.getProperty("java.runtime.version", "(unknown)");
+		String jreVendor = System.getProperty("java.vendor", "(unknown)");
+		
+		int major, minor;
+
+		try {
+			major = Integer.parseInt(version[0]);
+			minor = Integer.parseInt(version[1]);
+			
+			if (major < REQUIRED_MAJOR_VERSION || 
+					(major == REQUIRED_MAJOR_VERSION && minor < REQUIRED_MINOR_VERSION)) {
+				error("Java SE version 6 is required to run OpenRocket.",
+						"You are currently running " + jreName + " version " +
+						jreVersion + " by " + jreVendor);
+			}
+			
+		} catch (RuntimeException e) {
+			
+			confirm("The Java version in use could not be detected.",
+					"OpenRocket requires at least Java SE 6.",
+					"Continue anyway?");
+			
+		}
+		
+	}
+
+	
+	/**
+	 * Check that the JRE is not running headless.
+	 */
+	private static void checkHead() {
+		
+		if (GraphicsEnvironment.isHeadless()) {
+			System.err.println();
+			System.err.println("OpenRocket cannot currently be run without the graphical " +
+					"user interface.");
+			System.err.println();
+			System.exit(1);
+		}
+		
+	}
+	
+	
+	/**
+	 * Check whether OpenJDK is being used, and if it is warn the user about
+	 * problems and confirm whether to continue.
+	 */
+	private static void checkOpenJDK() {
+		
+		if (System.getProperty("java.runtime.name", "").toLowerCase().indexOf("icedtea")>=0 ||
+				System.getProperty("java.vm.name", "").toLowerCase().indexOf("openjdk")>=0) {
+
+			String jreName = System.getProperty("java.vm.name", "(unknown)");
+			String jreVersion = System.getProperty("java.runtime.version", "(unknown)");
+			String jreVendor = System.getProperty("java.vendor", "(unknown)");
+
+			confirm("OpenJDK is known to have problems running OpenRocket.",
+					" ",
+					"You are currently running " + jreName + " version " +
+					jreVersion + " by " + jreVendor,
+					"Do you want to continue?");
+			
+		}
+	}
+
+	
+	
+	
+	/**
+	 * Presents an error message to the user and exits the application.
+	 * 
+	 * @param message	an array of messages to present.
+	 */
+	private static void error(String ... message) {
+
+		System.err.println();
+		System.err.println("Error starting OpenRocket:");
+		System.err.println();
+		for (int i=0; i < message.length; i++) {
+			System.err.println(message[i]);
+		}
+		System.err.println();
+
+		
+		if (!GraphicsEnvironment.isHeadless()) {
+
+			JOptionPane.showMessageDialog(null, message, "Error starting OpenRocket",
+					JOptionPane.ERROR_MESSAGE);
+			
+		}
+		
+		System.exit(1);
+	}
+	
+	
+	/**
+	 * Presents the user with a message dialog and asks whether to continue.
+	 * If the user does not select "Yes" the the application exits.
+	 * 
+	 * @param message	the message Strings to show.
+	 */
+	private static void confirm(String ... message) {
+
+		if (!GraphicsEnvironment.isHeadless()) {
+			
+			if (JOptionPane.showConfirmDialog(null, message, "Error starting OpenRocket",
+					JOptionPane.YES_NO_OPTION) != JOptionPane.YES_OPTION) {
+				System.exit(1);
+			}
+			
+		}
+
+	}
+	
+	
+}

src/net/sf/openrocket/unit/FixedPrecisionUnit.java

@@ -47,7 +47,7 @@ public class FixedPrecisionUnit extends Unit {
 
 	@Override
 	public String toString(double value) {
-		return String.format(formatString, value);
+		return String.format(formatString, this.toUnit(value));
 	}
 	
 	

src/net/sf/openrocket/util/JarUtil.java

@@ -0,0 +1,50 @@
+package net.sf.openrocket.util;
+
+import java.io.File;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.security.CodeSource;
+
+import net.sf.openrocket.database.Database;
+
+public class JarUtil {
+
+	/**
+	 * Return the a File object pointing to the JAR file that this class belongs to,
+	 * or <code>null</code> if it cannot be found.
+	 * 
+	 * @return	a File object of the current Java archive, or <code>null</code>
+	 */
+	public static File getCurrentJarFile() {
+		// Find the jar file this class is contained in
+		URL jarUrl = null;
+		CodeSource codeSource = Database.class.getProtectionDomain().getCodeSource();
+		if (codeSource != null)
+			jarUrl = codeSource.getLocation();
+		
+		if (jarUrl == null) {
+			return null;
+		}
+		return urlToFile(jarUrl);
+	}
+	
+	
+
+	public static File urlToFile(URL url) {
+		URI uri;
+		try {
+			uri = url.toURI();
+		} catch (URISyntaxException e) {
+			try {
+				uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), 
+						url.getPort(), url.getPath(), url.getQuery(), url.getRef());
+			} catch (URISyntaxException e1) {
+				throw new IllegalArgumentException("Broken URL: " + url);
+			}
+		}
+		return new File(uri);
+	}
+	
+	
+}

src/net/sf/openrocket/util/PrintProperties.java

@@ -0,0 +1,22 @@
+package net.sf.openrocket.util;
+
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+public class PrintProperties {
+
+	public static void main(String[] args) {
+
+		// Sort the keys
+		SortedSet<String> keys = new TreeSet<String>();
+		for (Object key: System.getProperties().keySet()) {
+			keys.add((String)key);
+		}
+		
+		for (String key: keys) {
+			System.out.println(key + "=" + System.getProperty((String)key));
+		}
+		
+	}
+
+}