Package ucar.ui.table

Class JTreeTable.TreeTableCellEditor

java.lang.Object

ucar.ui.table.AbstractCellEditor

ucar.ui.table.JTreeTable.TreeTableCellEditor

All Implemented Interfaces:

CellEditor, TableCellEditor

Enclosing class:

JTreeTable

public class JTreeTable.TreeTableCellEditor
extends AbstractCellEditor
implements TableCellEditor

TreeTableCellEditor implementation. Component returned is the JTree.

Field Summary

Fields inherited from class ucar.ui.table.AbstractCellEditor

listenerList

Constructor Summary

Constructors

Constructor	Description
TreeTableCellEditor()

Method Summary

Modifier and Type	Method	Description
Component	getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int r, int c)
boolean	isCellEditable(EventObject e)	Overridden to return false, and if the event is a mouse event it is forwarded to the tree.

Methods inherited from class ucar.ui.table.AbstractCellEditor

addCellEditorListener, cancelCellEditing, fireEditingCanceled, fireEditingStopped, getCellEditorValue, removeCellEditorListener, shouldSelectCell, stopCellEditing

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.swing.CellEditor

addCellEditorListener, cancelCellEditing, getCellEditorValue, removeCellEditorListener, shouldSelectCell, stopCellEditing

Constructor Detail

TreeTableCellEditor

public TreeTableCellEditor()

Method Detail

getTableCellEditorComponent

public Component getTableCellEditorComponent(JTable table,
                                             Object value,
                                             boolean isSelected,
                                             int r,
                                             int c)

Specified by:

getTableCellEditorComponent in interface TableCellEditor

isCellEditable

public boolean isCellEditable(EventObject e)

Overridden to return false, and if the event is a mouse event it is forwarded to the tree.

The behavior for this is debatable, and should really be offered as a property. By returning false, all keyboard actions are implemented in terms of the table. By returning true, the tree would get a chance to do something with the keyboard events. For the most part this is ok. But for certain keys, such as left/right, the tree will expand/collapse where as the table focus should really move to a different column. Page up/down should also be implemented in terms of the table. By returning false this also has the added benefit that clicking outside of the bounds of the tree node, but still in the tree column will select the row, whereas if this returned true that wouldn't be the case.

By returning false we are also enforcing the policy that the tree will never be editable (at least by a key sequence).

Specified by:

isCellEditable in interface CellEditor

Overrides:

isCellEditable in class AbstractCellEditor