ToDoByPoster.java example

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// $Id: ToDoByPoster.java 15884 2008-10-04 17:16:59Z bobtarling $
// Copyright (c) 1996-2006 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies.  This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason.  IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

package org.argouml.cognitive.ui;

import java.util.List;

import org.apache.log4j.Logger;
import org.argouml.cognitive.Designer;
import org.argouml.cognitive.ListSet;
import org.argouml.cognitive.Poster;
import org.argouml.cognitive.ToDoItem;
import org.argouml.cognitive.ToDoListEvent;
import org.argouml.cognitive.ToDoListListener;

/**
 * Represents a perspective for ToDo items: grouping by poster type.
 *
 */
public class ToDoByPoster extends ToDoPerspective
    implements ToDoListListener {
    private static final Logger LOG =
        Logger.getLogger(ToDoByPoster.class);

    /**
     * The constructor.
     *
     */
    public ToDoByPoster() {
	super("combobox.todo-perspective-poster");
	addSubTreeModel(new GoListToPosterToItem());
    }

    ////////////////////////////////////////////////////////////////
    // ToDoListListener implementation

    /*
     * @see org.argouml.cognitive.ToDoListListener#toDoItemsChanged(org.argouml.cognitive.ToDoListEvent)
     */
    public void toDoItemsChanged(ToDoListEvent tde) {
	LOG.debug("toDoItemsChanged");
        List<ToDoItem> items = tde.getToDoItemList();
	Object[] path = new Object[2];
	path[0] = Designer.theDesigner().getToDoList();

	ListSet<Poster> allPosters = 
	    Designer.theDesigner().getToDoList().getPosters();
        synchronized (allPosters) {
            for (Poster p : allPosters) {
                path[1] = p;
                int nMatchingItems = 0;
                for (ToDoItem item : items) {
                    Poster post = item.getPoster();
                    if (post != p) {
                        continue;
                    }
                    nMatchingItems++;
                }
                if (nMatchingItems == 0) {
                    continue;
                }
                int[] childIndices = new int[nMatchingItems];
                Object[] children = new Object[nMatchingItems];
                nMatchingItems = 0;
                for (ToDoItem item : items) {
                    Poster post = item.getPoster();
                    if (post != p) {
                        continue;
                    }
                    childIndices[nMatchingItems] = getIndexOfChild(p, item);
                    children[nMatchingItems] = item;
                    nMatchingItems++;
                }
                fireTreeNodesChanged(this, path, childIndices, children);
            }
        }
    }

    /*
     * @see org.argouml.cognitive.ToDoListListener#toDoItemsAdded(org.argouml.cognitive.ToDoListEvent)
     */
    public void toDoItemsAdded(ToDoListEvent tde) {
	LOG.debug("toDoItemAdded");
	List<ToDoItem> items = tde.getToDoItemList();
	Object[] path = new Object[2];
	path[0] = Designer.theDesigner().getToDoList();

	ListSet<Poster> allPosters = 
	    Designer.theDesigner().getToDoList().getPosters();
	synchronized (allPosters) {
            for (Poster p : allPosters) {
                path[1] = p;
                int nMatchingItems = 0;
                for (ToDoItem item : items) {
                    Poster post = item.getPoster();
                    if (post != p) {
                        continue;
                    }
                    nMatchingItems++;
                }
                if (nMatchingItems == 0) {
                    continue;
                }
                int[] childIndices = new int[nMatchingItems];
                Object[] children = new Object[nMatchingItems];
                nMatchingItems = 0;
                for (ToDoItem item : items) {
                    Poster post = item.getPoster();
                    if (post != p) {
                        continue;
                    }
                    childIndices[nMatchingItems] = getIndexOfChild(p, item);
                    children[nMatchingItems] = item;
                    nMatchingItems++;
                }
                fireTreeNodesInserted(this, path, childIndices, children);
            }
        }
    }

    /*
     * @see org.argouml.cognitive.ToDoListListener#toDoItemsRemoved(org.argouml.cognitive.ToDoListEvent)
     */
    public void toDoItemsRemoved(ToDoListEvent tde) {
	LOG.debug("toDoItemRemoved");
        List<ToDoItem> items = tde.getToDoItemList();
        
	Object[] path = new Object[2];
	path[0] = Designer.theDesigner().getToDoList();

	ListSet<Poster> allPosters = Designer.theDesigner().getToDoList()
                .getPosters();
        synchronized (allPosters) {
            for (Poster p : allPosters) {
                boolean anyInPoster = false;
                for (ToDoItem item : items) {
                    Poster post = item.getPoster();
                    if (post == p) {
                        anyInPoster = true;
                        break;
                    }
                }
                if (!anyInPoster) {
                    continue;
                }
                path[1] = p;
                fireTreeStructureChanged(path);
            }
        }
    }

    /*
     * @see org.argouml.cognitive.ToDoListListener#toDoListChanged(org.argouml.cognitive.ToDoListEvent)
     */
    public void toDoListChanged(ToDoListEvent tde) {
    }

}