prajna.gui

Class ColorCellEditor

java.lang.Object

javax.swing.AbstractCellEditor

prajna.gui.ColorCellEditor

All Implemented Interfaces:

java.awt.event.ActionListener, java.io.Serializable, java.util.EventListener, javax.swing.CellEditor, javax.swing.table.TableCellEditor, javax.swing.table.TableCellRenderer

public class ColorCellEditor
extends javax.swing.AbstractCellEditor
implements javax.swing.table.TableCellEditor, java.awt.event.ActionListener, javax.swing.table.TableCellRenderer

This cell editor provides the means to edit and display table cells representing color values. The color editor pops up a JColorChooser to edit the colors, and updates the display appropriately. For convenience, this editor also implements TableCellRenderer, so that both display and editing can be handled with this editor.

Author:

Edward Swing

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.AbstractCellEditor

changeEvent, listenerList

Constructor Summary

Constructors

Constructor and Description
ColorCellEditor() Instantiates a new color cell editor.

Method Summary

Methods

Modifier and Type	Method and Description
void	actionPerformed(java.awt.event.ActionEvent evt) Handle clicking on the button.
java.lang.Object	getCellEditorValue() Get the current value of the cell being edited.
java.awt.Component	getTableCellEditorComponent(javax.swing.JTable table, java.lang.Object value, boolean isSelected, int row, int column) Set an initial value for the editor, and get the component used to render the table cell editor.
java.awt.Component	getTableCellRendererComponent(javax.swing.JTable table, java.lang.Object value, boolean isSelected, boolean hasFocus, int row, int column) Returns the component used for drawing the cell.

Methods inherited from class javax.swing.AbstractCellEditor

addCellEditorListener, cancelCellEditing, fireEditingCanceled, fireEditingStopped, getCellEditorListeners, isCellEditable, 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, isCellEditable, removeCellEditorListener, shouldSelectCell, stopCellEditing

Constructor Detail

ColorCellEditor

public ColorCellEditor()

Instantiates a new color cell editor.

Method Detail

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent evt)

Handle clicking on the button. This method is public as an implementation side-effect.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Parameters:

evt - the actionEvent

getCellEditorValue

public java.lang.Object getCellEditorValue()

Get the current value of the cell being edited. This returns the current color value

Specified by:

getCellEditorValue in interface javax.swing.CellEditor

Returns:

the current color value

getTableCellEditorComponent

public java.awt.Component getTableCellEditorComponent(javax.swing.JTable table,
                                             java.lang.Object value,
                                             boolean isSelected,
                                             int row,
                                             int column)

Set an initial value for the editor, and get the component used to render the table cell editor. For this editor, a simple JButton is returned.

Specified by:

getTableCellEditorComponent in interface javax.swing.table.TableCellEditor

Parameters:

table - The table being edited

value - the value of the cell to be edited

isSelected - true if the cell should be highlighted

row - the cell row

column - the cell column

Returns:

the component for the editor, which is a JButton

getTableCellRendererComponent

public java.awt.Component getTableCellRendererComponent(javax.swing.JTable table,
                                               java.lang.Object value,
                                               boolean isSelected,
                                               boolean hasFocus,
                                               int row,
                                               int column)

Returns the component used for drawing the cell. This method is used to configure the renderer appropriately before drawing. This method returns a JButton with a label filled with spaces, and a background color equal to the color value provided.

Specified by:

getTableCellRendererComponent in interface javax.swing.table.TableCellRenderer

Parameters:

table - the table being drawn

value - the value of the cell to be rendered

isSelected - true if the cell should be highlighted

hasFocus - true whether the cell has focus

row - the cell row

column - the cell column

Returns:

the component for the editor, which is a JButton