package prefuse.util.ui;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.TableModel;
import prefuse.data.Table;
import prefuse.data.event.EventConstants;
import prefuse.data.event.TableListener;
import prefuse.util.StringLib;
import prefuse.util.collections.CopyOnWriteArrayList;
import prefuse.util.collections.IntIterator;
/**
* TableModel implementation that serves as an adapter between a prefuse
* Table instance and a JTable component.
*/
public class PrefuseTableModel implements TableModel, TableListener {
private CopyOnWriteArrayList m_listeners = new CopyOnWriteArrayList();
private int[] m_rowmap;
private Table m_table;
/**
* Creates a new PrefuseTableModel
* @param table the underlying prefuse table
*/
public PrefuseTableModel(Table table) {
m_table = table;
}
/**
* Initialize mapping between prefuse table rows and the rows reported
* by this model.
*/
private void initRowMap() {
m_rowmap = new int[m_table.getRowCount()];
IntIterator rows = m_table.rows();
for ( int i=0; rows.hasNext(); ++i ) {
m_rowmap[i] = rows.nextInt();
}
}
/**
* Get the prefuse table row for a row index into this table model.
* @param rowIndex the row index in this table model
* @return the corresponding prefuse table row
*/
private int getRow(int rowIndex) {
if ( m_rowmap == null )
initRowMap();
return m_rowmap[rowIndex];
}
// --------------------------------------------------------------------
/**
* @see javax.swing.table.TableModel#getColumnCount()
*/
public int getColumnCount() {
return m_table.getColumnCount();
}
/**
* @see javax.swing.table.TableModel#getRowCount()
*/
public int getRowCount() {
return m_table.getRowCount();
}
/**
* @see javax.swing.table.TableModel#isCellEditable(int, int)
*/
public boolean isCellEditable(int rowIndex, int columnIndex) {
return m_table.isCellEditable(rowIndex, columnIndex);
}
/**
* @see javax.swing.table.TableModel#getColumnClass(int)
*/
public Class getColumnClass(int columnIndex) {
return m_table.getColumnType(columnIndex);
}
/**
* @see javax.swing.table.TableModel#getValueAt(int, int)
*/
public Object getValueAt(int rowIndex, int columnIndex) {
Object o = m_table.get(getRow(rowIndex), columnIndex);
if ( o != null && o.getClass().isArray() ) {
return StringLib.getArrayString(o);
} else {
return o;
}
}
/**
* @see javax.swing.table.TableModel#setValueAt(java.lang.Object, int, int)
*/
public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
m_table.set(getRow(rowIndex), columnIndex, aValue);
}
/**
* @see javax.swing.table.TableModel#getColumnName(int)
*/
public String getColumnName(int columnIndex) {
return m_table.getColumnName(columnIndex);
}
// --------------------------------------------------------------------
/**
* @see javax.swing.table.TableModel#addTableModelListener(javax.swing.event.TableModelListener)
*/
public void addTableModelListener(TableModelListener l) {
m_listeners.add(l);
}
/**
* @see javax.swing.table.TableModel#removeTableModelListener(javax.swing.event.TableModelListener)
*/
public void removeTableModelListener(TableModelListener l) {
m_listeners.remove(l);
}
/**
* @see prefuse.data.event.TableListener#tableChanged(prefuse.data.Table, int, int, int, int)
*/
public void tableChanged(Table t, int start, int end, int col, int type) {
if ( type == EventConstants.INSERT || type == EventConstants.DELETE )
m_rowmap = null; // invalidate row map
Object[] lstnrs = m_listeners.getArray();
if ( lstnrs.length == 0 )
return;
TableModelEvent evt
= new TableModelEvent(this, start, end, col, type);
for ( int i=0; i<lstnrs.length; ++i ) {
((TableModelListener)lstnrs[i]).tableChanged(evt);
}
}
} // end of class PrefuseTableModel