tasklisttablemodel.java

一个用于安排项目时间表的Java程序

/*
 *  $Id: TaskListTableModel.java,v 1.1.1.1 2001/03/20 22:17:42 mastermitch Exp $ 
 *
 *  2001 (C) by Christian Garbs <[e-mail]>
 *
 *  Licensed under GNU GPL (see COPYING for details)
 *
 */

package de.cgarbs.apps.jprojecttimer;

import java.util.Enumeration;
import javax.swing.table.AbstractTableModel;

public class TaskListTableModel extends AbstractTableModel
{
    TaskList tasks;

    final static String[] COLUMN_NAMES = {
	Resource.get("no."),
	Resource.get("task"),
	Resource.get("duration"),
	Resource.get("predecessors"),
	"%"
    };

    public TaskListTableModel(TaskList tasks)
    {
	this.tasks = tasks;
    }

    public String getColumnName(int column)
    {
	return COLUMN_NAMES[column];
    }

    public boolean isCellEditable(int row, int column)
    {
	return false;
    }

    public Class getColumnClass(int column)
    {
	return getValueAt(0, column).getClass();
    }

    public Object getValueAt(int row, int column)
    {
	if (row >= tasks.size()) {
	    return null;
	}
	switch (column) {
	case 0:
	    return new Integer(row + 1);
	case 1:
	    return ((Task) tasks.elementAt(row)).getName();
	case 2:
	    return new Integer(((Task) tasks.elementAt(row)).getLength());
	case 3:
	    String s = null;
	    for (Enumeration e = ((Task) tasks.elementAt(row)).getDependencies().elements(); e.hasMoreElements(); ) {
		Task v = (Task) e.nextElement();
		if (s == null) {
		    s = Integer.toString(tasks.indexOf(v) + 1);
		} else {
		    s += ", " + (tasks.indexOf(v) + 1);
		}
	    }
	    if (s == null) {
		return "-";
	    } else {
		return s;
	    }
	case 4:
	    return new Integer(((Task) tasks.elementAt(row)).getCompletion());
	}
	return null;
    }
    
    public int getColumnCount()
    {
	return 5;
    }

    public int getRowCount()
    {
	return tasks.size();
    }
}