com.klg.jclass.table
Class KeyInputHandler

java.lang.Object
  |
  +--com.klg.jclass.table.InputHandler
        |
        +--com.klg.jclass.table.KeyInputHandler

All Implemented Interfaces:

EventListener, KeyListener, Serializable

public class KeyInputHandler

extends InputHandler

implements KeyListener, Serializable

KeyInputHandler processes all key events for table during key press. It handles traversal, selection, and editor start and stop.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.klg.jclass.table.InputHandler

SELECTING, table

Constructor Summary

KeyInputHandler(com.klg.jclass.table.JCTable table)

Method Summary

protected com.klg.jclass.table.JCCellPosition	findTraversableCell(int direction, int row, int column) Finds the next traversable cell given a direction and current position.
boolean	isModifierKey(int key) Returns true if the key is a modifier.
void	keyPressed(KeyEvent e) Processes key pressed events for table.
void	keyReleased(KeyEvent e)
void	keyTyped(KeyEvent e)
protected boolean	traverse(int direction) Traverses from the current cell in the given direction.

Methods inherited from class com.klg.jclass.table.InputHandler

getCellPosition, isAlt, isCell, isControl, isCopyAction, isLabel, isMeta, isPasteAction, isShift, loadPasteData, performCopyAction, performPasteAction

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyInputHandler

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

Method Detail

keyPressed

public void keyPressed(KeyEvent e)

Processes key pressed events for table.

Specified by:

keyPressed in interface KeyListener

keyReleased

public void keyReleased(KeyEvent e)

Specified by:

keyReleased in interface KeyListener

keyTyped

public void keyTyped(KeyEvent e)

Specified by:

keyTyped in interface KeyListener

traverse

protected boolean traverse(int direction)

Traverses from the current cell in the given direction.

findTraversableCell

protected com.klg.jclass.table.JCCellPosition findTraversableCell(int direction,
                                                                  int row,
                                                                  int column)

Finds the next traversable cell given a direction and current position. Directions include:

• JCTableEnum.TRAVERSE_LEFT
• JCTableEnum.TRAVERSE_RIGHT
• JCTableEnum.TRAVERSE_UP
• JCTableEnum.TRAVERSE_DOWN
• JCTableEnum.TRAVERSE_PAGEUP
• JCTableEnum.TRAVERSE_PAGEDOWN
• JCTableEnum.TRAVERSE_TOP
• JCTableEnum.TRAVERSE_BOTTOM
• JCTableEnum.TRAVERSE_HOME
• JCTableEnum.TRAVERSE_END

Null is returned if no traversable cell is found.

isModifierKey

public boolean isModifierKey(int key)

Returns true if the key is a modifier.