org.jhotdraw.draw
Class HandleTracker

java.lang.Object
  org.jhotdraw.draw.AbstractTool
      org.jhotdraw.draw.HandleTracker

All Implemented Interfaces:

Tool

public class HandleTracker
extends AbstractTool

HandleTracker implements interactions with the handles of a Figure.

Version:

<$CURRENT_VERSION$>

See Also:

SelectionTool

Nested Class Summary

Nested classes/interfaces inherited from class org.jhotdraw.draw.AbstractTool

AbstractTool.EventDispatcher

Field Summary

private Handle

fAnchorHandle

Constructor Summary

HandleTracker(DrawingEditor newDrawingEditor, Handle anchorHandle)

Method Summary

void	activate() Activates the tool for use on the given view.
void	mouseDown(java.awt.event.MouseEvent e, int x, int y) Handles mouse down events in the drawing view.
void	mouseDrag(java.awt.event.MouseEvent e, int x, int y) Handles mouse drag events in the drawing view.
void	mouseUp(java.awt.event.MouseEvent e, int x, int y) Handles mouse up in the drawing view.

Methods inherited from class org.jhotdraw.draw.AbstractTool

addToolListener, checkUsable, createEventDispatcher, createViewChangeListener, deactivate, drawing, editor, getActiveDrawing, getActiveView, getAnchorX, getAnchorY, getEventDispatcher, getUndoActivity, isActive, isEnabled, isUsable, keyDown, mouseMove, removeToolListener, setAnchorX, setAnchorY, setEditor, setEnabled, setUndoActivity, setUsable, setView, view, viewCreated, viewDestroying, viewSelectionChanged

Methods inherited from class java.lang.Object

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

Field Detail

fAnchorHandle

private Handle fAnchorHandle

Constructor Detail

HandleTracker

public HandleTracker(DrawingEditor newDrawingEditor,
                     Handle anchorHandle)

Method Detail

mouseDown

public void mouseDown(java.awt.event.MouseEvent e,
                      int x,
                      int y)

Description copied from class: AbstractTool

Handles mouse down events in the drawing view.

Specified by:

mouseDown in interface Tool

Overrides:

mouseDown in class AbstractTool

mouseDrag

public void mouseDrag(java.awt.event.MouseEvent e,
                      int x,
                      int y)

Description copied from class: AbstractTool

Handles mouse drag events in the drawing view.

Specified by:

mouseDrag in interface Tool

Overrides:

mouseDrag in class AbstractTool

mouseUp

public void mouseUp(java.awt.event.MouseEvent e,
                    int x,
                    int y)

Description copied from class: AbstractTool

Handles mouse up in the drawing view.

Specified by:

mouseUp in interface Tool

Overrides:

mouseUp in class AbstractTool

activate

public void activate()

Description copied from class: AbstractTool

Activates the tool for use on the given view. This method is called whenever the user switches to this tool. Use this method to reinitialize a tool. Since tools will be disabled unless it is useable, there will always be an active view when this is called. based on isUsable() Tool should never be activated if the view is null. Ideally, the dditor should take care of that.

Specified by:

activate in interface Tool

Overrides:

activate in class AbstractTool