Package com.puppycrawl.tools.checkstyle.gui

Class TreeTable.TreeTableCellEditor

java.lang.Object

com.puppycrawl.tools.checkstyle.gui.BaseCellEditor

com.puppycrawl.tools.checkstyle.gui.TreeTable.TreeTableCellEditor

All Implemented Interfaces:

CellEditor, TableCellEditor

Enclosing class:

TreeTable

private final class TreeTable.TreeTableCellEditor
extends BaseCellEditor
implements TableCellEditor

TreeTableCellEditor implementation. Component returned is the JTree.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	TreeTableCellEditor()

Method Summary

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

Methods inherited from class com.puppycrawl.tools.checkstyle.gui.BaseCellEditor

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

private TreeTableCellEditor()

Method Detail

getTableCellEditorComponent

public Component getTableCellEditorComponent(JTable table,
                                             Object value,
                                             boolean isSelected,
                                             int row,
                                             int column)

Specified by:

getTableCellEditorComponent in interface TableCellEditor

isCellEditable

public boolean isCellEditable(EventObject event)

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 BaseCellEditor

See Also:

TableCellEditor