org.jdesktop.swingx.table.TableColumnModelExt Maven / Gradle / Ivy
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/*
* $Id: TableColumnModelExt.java 3927 2011-02-22 16:34:11Z kleopatra $
*
* Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.jdesktop.swingx.table;
import java.util.List;
import javax.swing.event.TableColumnModelListener;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import org.jdesktop.swingx.JXTable;
import org.jdesktop.swingx.event.TableColumnModelExtListener;
/**
* An extension of TableColumnModel suitable for use with
* JXTable. It extends the notion of columns considered as part
* of the view realm to include invisible columns. Conceptually, there are
* several sets of "columns":
*
*
* - model columns: all columns of a
TableModel. They are but
* a virtual concept, characterizable f.i. by (model) column index, (model)
* column name.
* - view columns: all
TableColumnExt objects added to the
* TableColumnModelExt, each typically created and configured in
* relation to a model column. These can be regarded as a kind of subset of the
* model columns (not literally, obviously). Each view column belongs to exactly
* one of the following (real) subsets:
*
* - visible columns: all view columns with the visibility property enabled
*
- hidden columns: all view columns with the visibility property disabled
*
*
*
* This class manages the view columns and automatically takes care of keeping
* track of their location in the visible/hidden subset, triggering the
* corresponding changes in interested views. Typically, a view column's
* visibility can be toggled by user interaction, f.i. via a ColumnControlButton.
*
* An example to programmatically hide
* the first visible column in the column model:
*
*
* TableColumnExt columnExt = columnModel.getColumnExt(0);
* if (columnExt != null) {
* columnExt.setVisible(false);
* }
*
*
* Note that it is principally allowed to add standard TableColumns.
* Practically, it doesn't make much sense to do so - they will always be
* visible.
*
*
* While individual visible columns can be requested by both column identifier
* and column index, the latter is not available for hidden columns. An example
* to programmatically guarantee that the view column which corresponds to the
* first column in the associated TableModel.
*
*
* List<TableColumn> columns = colModel.getColumns(true);
* for (TableColumn column : columns) {
* if (column.getModelIndex() == 0) {
* if (column instanceof TableColumnExt) {
* ((TableColumnExt) column).setVisible(false);
* }
* return;
* }
* }
*
*
* Alternatively, the column could be requested directly by identifier. By
* default the column's headerValue is returned as identifier, if none is set.
*
*
* Object identifier = tableModel.getColumnName(0);
* TableColumnExt columnExt = columnModel.getColumnExt(identifier);
* if (columnExt != null) {
* columnExt.setVisible(false);
* }
*
*
* Relying on default identifiers is inherently brittle (headerValues might
* change f.i. with Locales), so explicit configuration of columns with
* identifiers is strongly recommended. A custom ColumnFactory
* helps to automate column configuration.
*
*
*
* This class guarantees to notify registered
* TableColumnModelListeners of type
* TableColumnModelExtListener about propertyChanges fired by
* contained TableColumns.
* An example of a client which adjusts itself based on
* headerValue property of visible columns:
*
* TableColumnModelExtListener l = new TableColumnModelExtListener() {
*
* public void columnPropertyChange(PropertyChangeEvent event) {
* if ("headerValue".equals(event.getPropertyName())) {
* TableColumn column = (TableColumn) event.getSource();
* if ((column instanceof TableColumnExt)
* && !((TableColumnExt) column).isVisible()) {
* return;
* }
* resizeAndRepaint();
* }
* }
*
* public void columnAdded(TableColumnModelEvent e) {
* }
*
* public void columnMarginChanged(ChangeEvent e) {
* }
*
* public void columnMoved(TableColumnModelEvent e) {
* }
*
* public void columnRemoved(TableColumnModelEvent e) {
* }
*
* public void columnSelectionChanged(ListSelectionEvent e) {
* }
*
* };
* columnModel.addColumnModelListener(l);
*
*
*
* @author Richard Bair
* @author Jeanette Winzenburg
*
* @see DefaultTableColumnModelExt
* @see TableColumnExt
* @see TableColumnModelExtListener
* @see ColumnControlButton
* @see JXTable#setColumnControlVisible
* @see ColumnFactory
*
*/
public interface TableColumnModelExt extends TableColumnModel {
/**
* Returns the number of contained columns. The count includes or excludes invisible
* columns, depending on whether the includeHidden is true or
* false, respectively. If false, this method returns the same count as
* getColumnCount().
*
* @param includeHidden a boolean to indicate whether invisible columns
* should be included
* @return the number of contained columns, including or excluding the
* invisible as specified.
*/
public int getColumnCount(boolean includeHidden);
/**
* Returns a List of contained TableColumns.
* Includes or excludes invisible columns, depending on whether the
* includeHidden is true or false, respectively. If false, an
* Iterator over the List is equivalent to the
* Enumeration returned by getColumns().
*
*
* NOTE: the order of columns in the List depends on whether or not the
* invisible columns are included, in the former case it's the insertion
* order in the latter it's the current order of the visible columns.
*
* @param includeHidden a boolean to indicate whether invisible columns
* should be included
* @return a List of contained columns.
*/
public List getColumns(boolean includeHidden);
/**
* Returns the first TableColumnExt with the given
* identifier. The return value is null if there is no contained
* column with identifier or if the column with identifier is not
* of type TableColumnExt. The returned column
* may be visible or hidden.
*
* @param identifier the object used as column identifier
* @return first TableColumnExt with the given identifier or
* null if none is found
*/
public TableColumnExt getColumnExt(Object identifier);
/**
* Returns the TableColumnExt at view position
* columnIndex. The return value is null, if the
* column at position columnIndex is not of type
* TableColumnExt.
* The returned column is visible.
*
* @param columnIndex the index of the column desired
* @return the TableColumnExt object that matches the column
* index
* @throws ArrayIndexOutOfBoundsException if columnIndex out of allowed
* range, that is if
* (columnIndex < 0) || (columnIndex >= getColumnCount()).
*/
public TableColumnExt getColumnExt(int columnIndex);
/**
* Adds a listener for table column model events. This enhances super's
* behaviour in that it guarantees to notify listeners of type
* TableColumnModelListenerExt about property changes of contained columns.
*
* @param x a TableColumnModelListener object
*/
@Override
public void addColumnModelListener(TableColumnModelListener x);
}