com.klg.jclass.table
Class AdjustmentHandler

java.lang.Object
  |
  +--com.klg.jclass.table.AdjustmentHandler

All Implemented Interfaces:

AdjustmentListener, EventListener, Serializable

public class AdjustmentHandler

extends Object

implements AdjustmentListener, Serializable

AdjustmentHandler responds to AdjustmentEvents and manages table scrolling.

See Also:

Serialized Form

Field Summary

protected boolean	isTracking
protected com.klg.jclass.table.JCTable	table
protected JLabel	trackLabel

Constructor Summary

AdjustmentHandler(com.klg.jclass.table.JCTable table)
Creates a new AdjustmentHandler and links it to table.

Method Summary

void	adjustmentValueChanged(AdjustmentEvent e) Controls the origin of the scrollable cell region when AdjustmentEvent objects are generated by the scrollbars.
protected void	adjustOrigin() Ensures that the cell origin is always in sync with the current scrollbar values.
void	dispose() Ensures that AdjustmentHandler can be disposed.
protected com.klg.jclass.table.CellArea	getBottomCellArea() Returns bottom-most CellArea that will be used for placing the horizontal track label when visible.
protected com.klg.jclass.table.CellArea	getRightCellArea() Returns the right-most CellArea that will be used for placing the vertical track label when visible.
boolean	isTracking() Returns the scrollbar tracking state.

Methods inherited from class java.lang.Object

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

Field Detail

table

protected com.klg.jclass.table.JCTable table

isTracking

protected boolean isTracking

trackLabel

protected JLabel trackLabel

Constructor Detail

AdjustmentHandler

public AdjustmentHandler(com.klg.jclass.table.JCTable table)

Creates a new AdjustmentHandler and links it to table.

Parameters:

table - The table to which this handler is linked

Method Detail

adjustmentValueChanged

public void adjustmentValueChanged(AdjustmentEvent e)

Controls the origin of the scrollable cell region when AdjustmentEvent objects are generated by the scrollbars. AdjustmentHandler determines the origin based on the JumpScroll setting.

Specified by:

adjustmentValueChanged in interface AdjustmentListener

Parameters:

e - The event generated by the adjustment

adjustOrigin

protected void adjustOrigin()

Ensures that the cell origin is always in sync with the current scrollbar values.

getBottomCellArea

protected com.klg.jclass.table.CellArea getBottomCellArea()

Returns bottom-most CellArea that will be used for placing the horizontal track label when visible.

Returns:

The bottom-most CellArea

getRightCellArea

protected com.klg.jclass.table.CellArea getRightCellArea()

Returns the right-most CellArea that will be used for placing the vertical track label when visible.

Returns:

The right most cell area

isTracking

public boolean isTracking()

Returns the scrollbar tracking state. During the tracking the table does not adjust according to the scrollbar value, but redisplays after the tracking completes.

Returns:

The current scrollbar tracking state

dispose

public void dispose()

Ensures that AdjustmentHandler can be disposed.