Package org.jdesktop.swingx.renderer

Class TableCellContext

java.lang.Object

org.jdesktop.swingx.renderer.CellContext

org.jdesktop.swingx.renderer.TableCellContext

All Implemented Interfaces:

Serializable

public class TableCellContext
extends CellContext

Table specific CellContext. This implementation optionally can handle LAF provide alternateRowColor. The default is not doing it. To enable, client code must set a UI-Property with key HANDLE_ALTERNATE_ROW_BACKGROUND to Boolean.TRUE.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final String	HANDLE_ALTERNATE_ROW_BACKGROUND

Fields inherited from class org.jdesktop.swingx.renderer.CellContext

column, component, dropOn, expanded, focused, leaf, noFocusBorder, row, selected, value

Constructor Summary

Constructors

Constructor	Description
TableCellContext()

Method Summary

Modifier and Type	Method	Description
protected Color	getAlternateRowColor()	Returns a Color to for odd row background if this context should handle the alternating row color AND the UIManager has the alternateRowColor property set.
protected Color	getBackground()	Returns the background color of the renderered component or null if the component is null
JTable	getComponent()	Returns the component the cell resides on, may be null.
protected Color	getSelectionBackground()	Returns the default selection background color of the renderered component.
protected Color	getSelectionForeground()	Returns the default selection foreground color of the renderered component.
protected String	getUIPrefix()	Returns the component type specific prefix of keys for lookup in the UIManager.
void	installContext(JTable component, Object value, int row, int column, boolean selected, boolean focused, boolean expanded, boolean leaf)	Sets state of the cell's context.
boolean	isEditable()	Returns the cell's editable property as returned by table.isCellEditable or false if the table is null.
protected boolean	isValidColumn()	PRE getComponent !
protected boolean	isValidRow()	PRE getComponent !

Methods inherited from class org.jdesktop.swingx.renderer.CellContext

getBorder, getCellRendererName, getColumn, getDropCellBackground, getDropCellForeground, getFocusBackground, getFocusBorder, getFocusForeground, getFont, getForeground, getIcon, getRow, getUIKey, getValue, installState, isDropOn, isExpanded, isFocused, isLeaf, isSelected, replaceValue

Methods inherited from class java.lang.Object

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

Field Details

HANDLE_ALTERNATE_ROW_BACKGROUND

public static final String HANDLE_ALTERNATE_ROW_BACKGROUND

See Also:

• Constant Field Values

Constructor Details

TableCellContext

public TableCellContext()

Method Details

installContext

public void installContext(JTable component,
 Object value,
 int row,
 int column,
 boolean selected,
 boolean focused,
 boolean expanded,
 boolean leaf)

Sets state of the cell's context. Note that the component might be null to indicate a cell without a concrete context. All accessors must cope with.

Parameters:

component - the component the cell resides on, might be null

value - the content value of the cell

row - the cell's row index in view coordinates

column - the cell's column index in view coordinates

selected - the cell's selected state

focused - the cell's focused state

expanded - the cell's expanded state

leaf - the cell's leaf state

getComponent

public JTable getComponent()

Description copied from class: CellContext

Returns the component the cell resides on, may be null. Subclasses are expected to override and return the component type they are handling.

Overrides:

getComponent in class CellContext

Returns:

the component the cell resides on, may be null.

isEditable

public boolean isEditable()

Returns the cell's editable property as returned by table.isCellEditable or false if the table is null.

Overrides:

isEditable in class CellContext

Returns:

the cell's editable property.

getBackground

protected Color getBackground()

Returns the background color of the renderered component or null if the component is null

PENDING: fallback to UI properties if comp == null?

Overridden to respect UI alternating row colors.

Overrides:

getBackground in class CellContext

Returns:

the background color of the rendered component.

getAlternateRowColor

protected Color getAlternateRowColor()

Returns a Color to for odd row background if this context should handle the alternating row color AND the UIManager has the alternateRowColor property set. Returns null otherwise.

Returns:

the color to use for odd row background, or null if either this context does not handle or no alternate row color is set.

getSelectionBackground

protected Color getSelectionBackground()

Returns the default selection background color of the renderered component. Typically, the color is LF specific. It's up to subclasses to look it up. Here: returns null.

PENDING: return UI properties here?

Overrides:

getSelectionBackground in class CellContext

Returns:

the selection background color of the rendered component.

getSelectionForeground

protected Color getSelectionForeground()

Returns the default selection foreground color of the renderered component. Typically, the color is LF specific. It's up to subclasses to look it up. Here: returns null.

PENDING: return UI properties here?

Overrides:

getSelectionForeground in class CellContext

Returns:

the selection foreground color of the rendered component.

getUIPrefix

protected String getUIPrefix()

Returns the component type specific prefix of keys for lookup in the UIManager. Subclasses must override, here: returns the empty String.

Overrides:

getUIPrefix in class CellContext

Returns:

the component type specific prefix.

isValidColumn

protected boolean isValidColumn()

PRE getComponent != null

Returns:

whether the column coordinate is valid in this context

isValidRow

protected boolean isValidRow()

PRE getComponent != null

Returns:

whether the row coordinate is valid in this context