Init

src/java/misc/StoryManager.java

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+package misc;
+
+import java.awt.BorderLayout;
+import java.awt.Container;
+import java.awt.Dimension;
+import java.awt.Point;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Hashtable;
+import java.util.List;
+import java.util.Vector;
+import javax.swing.AbstractButton;
+import javax.swing.JButton;
+import javax.swing.JLabel;
+import javax.swing.JMenu;
+import javax.swing.JMenuItem;
+import javax.swing.JPopupMenu;
+import javax.swing.SwingUtilities;
+
+public class StoryManager implements ApplicationManager, ActionListener {
+
+    // ========================================
+    static public final String
+	actionUndo			= "Undo",
+	actionRedo			= "Redo";
+    static public final List<String>
+	actionsNames			= Arrays.asList (actionUndo, actionRedo);
+    @SuppressWarnings("unchecked")
+    static public final Hashtable<String, Method> actionsMethod =
+	Util.collectMethod (StoryManager.class, actionsNames);
+    public void  actionPerformed (ActionEvent e) {
+	Util.actionPerformed (actionsMethod, e, this);
+    }
+    private ArrayList<AbstractButton> enabledUndoButtons = new ArrayList<AbstractButton> ();
+    private ArrayList<AbstractButton> enabledRedoButtons = new ArrayList<AbstractButton> ();
+
+    // ========================================
+    public void addMenuItem (JMenu... jMenu) {
+	Util.addMenuItem (actionsNames, this, jMenu[0]);
+    }
+    public void addIconButtons (Container... containers) {
+	addListButton (Util.addIconButton (actionUndo, this, containers[0]), true);
+	addListButton (Util.addIconButton (actionRedo, this, containers[0]), false);
+    }
+    public void addListButton (JButton button, boolean undo) {
+	Dimension currentSize = button.getPreferredSize ();
+	button.setLayout (new BorderLayout ());
+	JLabel develop = new JLabel (Util.loadActionIcon ("develop"));
+	Dimension addedSize = develop.getPreferredSize ();
+	button.add (develop, BorderLayout.EAST);
+	currentSize.width += addedSize.width;
+	button.setPreferredSize (currentSize);
+
+	develop.addMouseListener (new MouseAdapter () {
+		public void mousePressed (MouseEvent e) {
+		    button.setSelected (false);
+		    if (!button.isEnabled () || story == null)
+			return;
+		    new JStoryPopup (button, undo, SwingUtilities.convertMouseEvent (develop, e, button).getPoint ());
+		}
+	    });
+    }
+
+    @SuppressWarnings ("serial")
+    class JStoryPopup extends JPopupMenu {
+	public JStoryPopup (JButton button, boolean undo, Point pos) {
+	    Vector<String> cmds = undo ? story.getUndoCmd () : story.getRedoCmd ();
+	    for (int i = 0; i < cmds.size (); i++) {
+		if (i >= 10) {
+		    add (new JLabel ("..."));
+		    break;
+		}
+		JMenuItem jMenu = new JMenuItem (Bundle.getStory (cmds.get (i)));
+		final int count = i+1;
+		jMenu.addActionListener (new ActionListener () {
+			public void actionPerformed (ActionEvent e) {
+			    if (undo)
+				story.undo (count);
+			    else
+				story.redo (count);
+			}
+		    });
+		add (jMenu);
+	    }
+	    show (button, pos.x, pos.y);
+	}
+    }
+
+    public void addActiveButtons (Hashtable<String, AbstractButton> buttons) {
+	enabledUndoButtons.add (buttons.get (actionUndo));
+	enabledRedoButtons.add (buttons.get (actionRedo));
+	updateActiveButtons ();
+    }
+    public void updateActiveButtons () {
+	updateStory ();
+    }
+
+    public void updateStory () {
+	boolean undo = false, redo = false;
+	if (story != null) {
+	    undo = story.undoAvailable ();
+	    redo = story.redoAvailable ();
+	}
+	for (AbstractButton button : enabledUndoButtons)
+	    button.setEnabled (undo);
+	for (AbstractButton button : enabledRedoButtons)
+	    button.setEnabled (redo);
+    }
+
+    public void actionUndo () {
+	if (story == null)
+	    return;
+	story.undo (1);
+    }
+
+    public void actionRedo () {
+	if (story == null)
+	    return;
+	story.redo (1);
+    }
+
+    // ========================================
+    Story story;
+    public void setStory (Story story) {
+	if (this.story != null)
+	    this.story.removeObserver (this);
+	this.story = story;
+	if (story != null)
+	    story.addUpdateObserver (this);
+	updateStory ();
+    }
+
+    // public StoryManager () {
+    // }
+
+    // ========================================
+}