Added most recently used design file list to File menu.

core/ChangeLog

@@ -1,6 +1,11 @@
+2012-06-05  Doug Pedrick
+
+    * Most recently used design files added to File menu.
+
 2012-05-23  Doug Pedrick
 
     * Centering ring templates can now be chosen for printing.
+    * Calibration ruler added to printed templates.
 
 2012-05-09  Kevin Ruland
 

core/resources/l10n/messages.properties

@@ -454,7 +454,7 @@ customExpression.Description = Description
 
 ! Custom expression panel
 customExpressionPanel.but.NewExpression = New expression
-customExpressionPanel.lbl.UpdateNote = You must run the simulation before data will be available for plotting. 
+customExpressionPanel.lbl.UpdateNote = You must run the simulation before data will be available for plotting.
 customExpressionPanel.lbl.CalcNote = Expressions will be calculated in the order shown.
 customExpressionPanel.lbl.CustomExpressions = Custom Expressions :
 customExpression.Units.but.ttip.Remove = Remove this expression
@@ -1005,6 +1005,8 @@ main.menu.file.new = New
 main.menu.file.new.desc = Create a new rocket design
 main.menu.file.open = Open...
 BasicFrame.item.Openrocketdesign = Open a rocket design
+main.menu.file.openRecent = Open Recent...
+BasicFrame.item.Openrecentrocketdesign = Open a recent rocket design
 main.menu.file.openExample = Open example...
 BasicFrame.item.Openexamplerocketdesign = Open an example rocket design
 main.menu.file.save = Save

core/src/net/sf/openrocket/gui/main/MRUDesignFile.java

@@ -0,0 +1,179 @@
+package net.sf.openrocket.gui.main;
+
+import net.sf.openrocket.startup.Application;
+import net.sf.openrocket.startup.Preferences;
+
+import javax.swing.event.EventListenerList;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Implements a most-recently-used list backed by preferences.  This is modified/adapted from an example on the
+ * Netbeans wiki.
+ */
+public class MRUDesignFile {
+
+    public static final String MRU_FILE_LIST_PROPERTY = "MRUFileList";
+
+    public static final int MAX_SIZE = 9;
+
+    private List<String> mruFileList;
+
+    private static MRUDesignFile instance; // The single instance
+
+    private EventListenerList listenerList;
+
+    static {
+        instance = new MRUDesignFile();
+    }
+
+    /**
+     * Returns the single instance, creating one if it's the first time this method is called.
+     *
+     * @return The single instance.
+     */
+    public static MRUDesignFile getInstance() {
+        return instance;
+    }
+
+    /**
+     * Constructor.
+     */
+    protected MRUDesignFile() {
+        mruFileList = new ArrayList<String>(MAX_SIZE);
+        listenerList = new EventListenerList();
+        retrieve();
+    }
+
+    /**
+     * Get the current most-recently-used list of design files.
+     *
+     * @return a list that contains absolute file names
+     */
+    public List<String> getMRUFileList() {
+        return mruFileList;
+    }
+
+    /**
+     * Set the most-recently-used list to the given parameter and fire change events.
+     *
+     * @param list
+     */
+    public void setMRUFileList(List<String> list) {
+        this.mruFileList.clear();
+        this.mruFileList.addAll(list.subList(0, Math.min(list.size(), MAX_SIZE)));
+        firePropertyChange(MRU_FILE_LIST_PROPERTY, null, mruFileList);
+        store();
+    }
+
+    /**
+     * Remove a file from the MRU list and fire change events.
+     *
+     * @param absolutePath the filename to be removed
+     */
+    public void removeFile(String absolutePath) {
+        mruFileList.remove(absolutePath);
+        firePropertyChange(MRU_FILE_LIST_PROPERTY, null, mruFileList);
+        store();
+    }
+
+    /**
+     * Add a file to the MRU list and fire change events.
+     *
+     * @param absolutePath the filename to be added
+     */
+    public void addFile(String absolutePath) {
+        // remove the old
+        mruFileList.remove(absolutePath);
+
+        // add to the top
+        mruFileList.add(0, absolutePath);
+        while (mruFileList.size() > MAX_SIZE) {
+            mruFileList.remove(mruFileList.size() - 1);
+        }
+        firePropertyChange(MRU_FILE_LIST_PROPERTY, null, mruFileList);
+        store();
+    }
+
+    /**
+     * Clear all existing MRU references in the preferences backing store.
+     */
+    private void clear() {
+        Preferences prefs = getPreferences();
+
+        for (int i = 0; i < MAX_SIZE; i++) {
+            prefs.putString(MRU_FILE_LIST_PROPERTY + i, null);
+        }
+    }
+
+    /**
+     * Store the MRU list into the preferences backing store.
+     */
+    protected void store() {
+        Preferences prefs = getPreferences();
+
+        // clear the backing store
+        clear();
+
+        for (int i = 0; i < mruFileList.size(); i++) {
+            String str = mruFileList.get(i);
+            prefs.putString(MRU_FILE_LIST_PROPERTY + i, str);
+        }
+    }
+
+    /**
+     * Load the MRU list from the backing store.
+     */
+    protected void retrieve() {
+        mruFileList.clear();
+        Preferences prefs = getPreferences();
+
+        for (int i = 0; i < MAX_SIZE; i++) {
+            String str = prefs.getString(MRU_FILE_LIST_PROPERTY + i, null);
+            if (str != null) {
+                mruFileList.add(str);
+            }
+            else {
+                break;
+            }
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void addPropertyChangeListener(PropertyChangeListener listener) {
+        listenerList.add(PropertyChangeListener.class, listener);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void removePropertyChangeListener(PropertyChangeListener listener) {
+        listenerList.remove(PropertyChangeListener.class, listener);
+    }
+
+    protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
+        // Guaranteed to return a non-null array
+        Object[] listeners = listenerList.getListenerList();
+        // Process the listeners last to first, notifying
+        // those that are interested in this event
+        PropertyChangeEvent event = new PropertyChangeEvent(this, propertyName, oldValue, newValue);
+        for (int i = listeners.length - 2; i >= 0; i -= 2) {
+            if (listeners[i] == PropertyChangeListener.class) {
+                ((PropertyChangeListener) listeners[i + 1]).propertyChange(event);
+            }
+        }
+    }
+
+    /**
+     * Return the Preferences
+     *
+     * @return Preferences
+     */
+    protected final Preferences getPreferences() {
+        return Application.getPreferences();
+    }
+}

core/src/net/sf/openrocket/gui/main/MRUDesignFileAction.java

@@ -0,0 +1,86 @@
+package net.sf.openrocket.gui.main;
+
+import javax.swing.AbstractAction;
+import javax.swing.Action;
+import javax.swing.JMenu;
+import javax.swing.JMenuItem;
+import java.awt.Window;
+import java.awt.event.ActionEvent;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
+import java.io.File;
+import java.util.List;
+
+/**
+ * Implements a menu for the Most-Recently-Used Open Rocket design files.
+ */
+public final class MRUDesignFileAction extends JMenu {
+
+    /**
+     * The window to which an open design file action will be parented to (typically an instance of BasicFrame).
+     */
+    private Window parent;
+
+    /**
+     * Constructor.
+     *
+     * @param s         the I18N menu string
+     * @param theParent the window to which an open design file action will be parented to (typically an instance of
+     *                  BasicFrame).
+     */
+    public MRUDesignFileAction(String s, Window theParent) {
+        super(s);
+
+        parent = theParent;
+        MRUDesignFile opts = MRUDesignFile.getInstance();
+        opts.addPropertyChangeListener(new PropertyChangeListener() {
+            public void propertyChange(PropertyChangeEvent evt) {
+                if (!evt.getPropertyName().equals(MRUDesignFile.MRU_FILE_LIST_PROPERTY)) {
+                    return;
+                }
+                updateMenu();
+            }
+        });
+
+        updateMenu();
+    }
+
+    /**
+     * Create menu items.
+     */
+    private void updateMenu() {
+        removeAll();
+        List<String> list = MRUDesignFile.getInstance().getMRUFileList();
+        for (String name : list) {
+            Action action = createAction(name);
+            action.putValue(Action.NAME, name);
+            JMenuItem menuItem = new JMenuItem(action);
+            add(menuItem);
+        }
+    }
+
+    /**
+     * When a user clicks on one of the recently used design files, open it.
+     *
+     * @param file the design file name (absolute path)
+     *
+     * @return the action to open a design file
+     */
+    private Action createAction(String file) {
+        Action action = new AbstractAction() {
+            public void actionPerformed(ActionEvent e) {
+                String command = e.getActionCommand();
+                if (BasicFrame.open(new File(command), parent)) {
+                    MRUDesignFile.getInstance().addFile(command);
+                }
+                else {
+                    MRUDesignFile.getInstance().removeFile(command);
+                }
+            }
+        };
+
+        action.putValue(Action.ACTION_COMMAND_KEY, file);
+        return action;
+    }
+
+}

core/src/net/sf/openrocket/gui/print/components/Rule.java

@@ -76,10 +76,11 @@ public class Rule extends PrintableComponent {
             g.drawString("in", x + width + 6, y + width + 18);
             y += 6;
 
-            //Draw Inches first.
+            //Draw Inches first, with 1/2", 1/4", and 1/8" tick marks.
             drawVerticalRule(g2, false, inchOutSide, x, y, width, 0, div * 2, div * 4, div * 8);
             drawHorizontalRule(g2, true, inchOutSide, x, y + width, width, 0, div * 2, div * 4, div * 8);
             div = PrintUnit.MILLIMETERS.toPoints(1);  //mm increment
+            //Draw cm (10mm) and 1/2 cm (5mm) marks
             drawVerticalRule(g2, false, !inchOutSide, x, y, width, 0, 0, div * 5, div * 10);
             drawHorizontalRule(g2, true, !inchOutSide, x, y + width, width, 0, 0, div * 5, div * 10);
         }