MyTableModel.java

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/*******************************************************************************
 * ALMA - Atacama Large Millimeter Array
 * Copyright (c) ESO - European Southern Observatory, 2011
 * (in the framework of the ALMA collaboration).
 * All rights reserved.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 *******************************************************************************/
package alma.demo.dyncomp;

/*
 * Created on Oct 29, 2003
 *
 * To change the template for this generated file go to
 * Window - Preferences - Java - Code Generation - Code and Comments
 */
 
import javax.swing.table.AbstractTableModel;
import javax.swing.JButton;

public class MyTableModel extends AbstractTableModel 
{
        private final int ROWNUM=32;
        private final int COLNUM=3;
        
        final String colNames[] = { 
                "Dynamic component",
                "cUrl",
                ""
                 };
        
        Object tableData[][];
        
        public MyTableModel() {
                tableData = new Object[ROWNUM][COLNUM];
                for (int r=0; r<ROWNUM; r++)
                        for (int j=0; j<COLNUM; j++)
                                tableData[r][j]=null;
        }
        
        public Object getValueAt(int row, int column) {
                return tableData[row][column];
        }
        
        public int getRowCount() { 
                return ROWNUM;
        }
        
        public int getColumnCount() {
                return COLNUM;
        }
        
        public void append(String name,String cUrl) {
                // Scans the table to find the first free cell in the table
                int freePos=0;
                while (freePos<ROWNUM && tableData[freePos][0]!=null) freePos++;
                if (freePos<ROWNUM) {
                        // Set the name at column 0
                        setValueAt((Object)name,freePos,0);
                        // Set the cUrl at col 1
                        setValueAt((Object)cUrl,freePos,1);
                        // Set the button at column 2
                        JButton btn =new JButton("Release "+name);
                        setValueAt((Object)btn,freePos,2);
                        btn.setVisible(true);
                }
        }
        
        public Class getColumnClass(int c) {
                if (c==0 || c==1) try {
                        return Class.forName("java.lang.String");
                } catch (ClassNotFoundException cnfe) { System.err.println(cnfe.toString()); return null; }
                else if (c==2) try {
                        return Class.forName("javax.swing.JButton");
                }  catch (ClassNotFoundException cnfe) {  System.err.println(cnfe.toString()); return null; }
                return null;
        }


        public boolean exist(String name) {
                for (int t=0; t<ROWNUM; t++) {
                        if (tableData[t][0]!=null)
                                if (name.compareTo((String)tableData[t][0])==0) return true;
                }
                return false;
        }

        public void deleteEntry(String url) {
                int t;
                for (t=0; t<ROWNUM; t++) {
                        if (tableData[t][1]!=null)
                                if (url.compareTo((String)tableData[t][1])==0) break;
                }
                if (t<ROWNUM) {
                        setValueAt(null,t,0);
                        setValueAt(null,t,1);
                        setValueAt(null,t,2);
                }
        }

        public void sort() {
                int a=0;
                int b;
                while (a<ROWNUM-2) {
                        b=a+1;
                        while (b<ROWNUM-1 && tableData[b][0]==null) b++;
                        if (b<ROWNUM-1) {
                                setValueAt((Object)tableData[b][0],a,0);
                                setValueAt((Object)tableData[b][1],a,1);
                                setValueAt((Object)tableData[b][2],a,2);
                                setValueAt(null,b,0);
                                setValueAt(null,b,1);
                                setValueAt(null,b,2);
                                a++;
                        } else {
                                // No more items found
                                break;
                        }
                }
                // The last one is always null
                setValueAt(null,ROWNUM-1,0);
                setValueAt(null,ROWNUM-1,1);
                setValueAt(null,ROWNUM-1,2);
        }
        
        public void setValueAt(Object obj, int row, int col) {
                tableData[row][col]=obj;
                fireTableCellUpdated(row,col);
        }
        
        public String getColumnName(int col) {
                return colNames[col];
        } 
         
        public boolean isCellEditable(int row, int col) {
                if (tableData[row][col]==null) return false;
                if (col==0 || col==1) return false;
                else return true;
        }

    public String getURL(String name) {
        for (int t=0; t<ROWNUM; t++){
            if (tableData[t][0]!=null) {
                if (((String)(tableData[t][0])).compareTo(name)==0) {
                        return (String)tableData[t][1];
                }
            }
        }
        return null;
    }

}