/** Creates a default table column model. */
public DefaultTableColumnModel() {
super();
// Initialize local ivars to default
tableColumns = new Vector<TableColumn>();
setSelectionModel(createSelectionModel());
setColumnMargin(1);
invalidateWidthCache();
setColumnSelectionAllowed(false);
}
/**
* Property Change Listener change method. Used to track changes to the column width or preferred
* column width.
*
* @param evt <code>PropertyChangeEvent</code>
*/
public void propertyChange(PropertyChangeEvent evt) {
String name = evt.getPropertyName();
if (name == "width" || name == "preferredWidth") {
invalidateWidthCache();
// This is a misnomer, we're using this method
// simply to cause a relayout.
fireColumnMarginChanged();
}
}
/**
* Appends <code>aColumn</code> to the end of the <code>tableColumns</code> array. This method
* also posts the <code>columnAdded</code> event to its listeners.
*
* @param aColumn the <code>TableColumn</code> to be added
* @exception IllegalArgumentException if <code>aColumn</code> is <code>null</code>
* @see #removeColumn
*/
public void addColumn(TableColumn aColumn) {
if (aColumn == null) {
throw new IllegalArgumentException("Object is null");
}
tableColumns.addElement(aColumn);
aColumn.addPropertyChangeListener(this);
invalidateWidthCache();
// Post columnAdded event notification
fireColumnAdded(new TableColumnModelEvent(this, 0, getColumnCount() - 1));
}
/**
* Deletes the <code>column</code> from the <code>tableColumns</code> array. This method will do
* nothing if <code>column</code> is not in the table's columns list. <code>tile</code> is called
* to resize both the header and table views. This method also posts a <code>columnRemoved</code>
* event to its listeners.
*
* @param column the <code>TableColumn</code> to be removed
* @see #addColumn
*/
public void removeColumn(TableColumn column) {
int columnIndex = tableColumns.indexOf(column);
if (columnIndex != -1) {
// Adjust for the selection
if (selectionModel != null) {
selectionModel.removeIndexInterval(columnIndex, columnIndex);
}
column.removePropertyChangeListener(this);
tableColumns.removeElementAt(columnIndex);
invalidateWidthCache();
// Post columnAdded event notification. (JTable and JTableHeader
// listens so they can adjust size and redraw)
fireColumnRemoved(new TableColumnModelEvent(this, columnIndex, 0));
}
}