org.jhotdraw.draw.tool

Class DefaultDragTracker

java.lang.Object

org.jhotdraw.beans.AbstractBean

org.jhotdraw.draw.tool.AbstractTool

org.jhotdraw.draw.tool.DefaultDragTracker

All Implemented Interfaces:

java.awt.event.KeyListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, DragTracker, Tool

public class DefaultDragTracker
extends AbstractTool
implements DragTracker

DefaultDragTracker implements interactions with the content area of a Figure.

The DefaultDragTracker handles one of the three states of the SelectionTool. It comes into action, when the user presses the mouse button over the content area of a Figure.

Design pattern:
Name: Chain of Responsibility.
Role: Handler.
Partners: SelectionTool as Handler, SelectAreaTracker as Handler, HandleTracker as Handler.

Design pattern:
Name: State.
Role: State.
Partners: SelectAreaTracker as State, SelectionTool as Context, HandleTracker as State.

See Also:

SelectionTool, Serialized Form

Constructor Summary

Constructors

Constructor and Description
DefaultDragTracker()
DefaultDragTracker(Figure figure) Creates a new instance.

Method Summary

Modifier and Type	Method and Description
void	mouseDragged(java.awt.event.MouseEvent evt)
void	mouseMoved(java.awt.event.MouseEvent evt)
void	mousePressed(java.awt.event.MouseEvent evt)
void	mouseReleased(java.awt.event.MouseEvent evt)
void	setDraggedFigure(Figure f)

Methods inherited from class org.jhotdraw.draw.tool.AbstractTool

activate, addToolListener, addUndoableEditListener, deactivate, draw, editCopy, editCut, editDelete, editDuplicate, editPaste, getActionMap, getInputMap, getToolTipText, isActive, keyPressed, keyReleased, keyTyped, mouseClicked, mouseEntered, mouseExited, removeToolListener, removeUndoableEditListener, setActionMap, setInputMap, supportsHandleInteraction, updateCursor

Methods inherited from class org.jhotdraw.beans.AbstractBean

addPropertyChangeListener, addPropertyChangeListener, clone, getPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jhotdraw.draw.tool.Tool

activate, addToolListener, deactivate, draw, editCopy, editCut, editDelete, editDuplicate, editPaste, getToolTipText, removeToolListener, supportsHandleInteraction

Methods inherited from interface java.awt.event.MouseListener

mouseClicked, mouseEntered, mouseExited

Methods inherited from interface java.awt.event.KeyListener

keyPressed, keyReleased, keyTyped

Constructor Detail

DefaultDragTracker

public DefaultDragTracker(Figure figure)

Creates a new instance.

DefaultDragTracker

public DefaultDragTracker()

Method Detail

mouseMoved

public void mouseMoved(java.awt.event.MouseEvent evt)

Specified by:

mouseMoved in interface java.awt.event.MouseMotionListener

Overrides:

mouseMoved in class AbstractTool

mousePressed

public void mousePressed(java.awt.event.MouseEvent evt)

Specified by:

mousePressed in interface java.awt.event.MouseListener

Overrides:

mousePressed in class AbstractTool

mouseDragged

public void mouseDragged(java.awt.event.MouseEvent evt)

Specified by:

mouseDragged in interface java.awt.event.MouseMotionListener

mouseReleased

public void mouseReleased(java.awt.event.MouseEvent evt)

Specified by:

mouseReleased in interface java.awt.event.MouseListener

Overrides:

mouseReleased in class AbstractTool

setDraggedFigure

public void setDraggedFigure(Figure f)

Specified by:

setDraggedFigure in interface DragTracker