diva.sketch.toolbox

Class PanZoomInterpreter

java.lang.Object

diva.canvas.interactor.AbstractInteractor

diva.sketch.toolbox.PanZoomInterpreter

All Implemented Interfaces:

LayerListener, LayerMotionListener, Interactor, EventListener

public class PanZoomInterpreter
extends AbstractInteractor

Version:

$Revision: 1.9 $

Author:

Heloise Hse (hwawen@eecs.berkeley.edu)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	PanZoomInterpreter.LocalRecognizer

Field Summary

Fields

Modifier and Type	Field and Description
static String	PZ

Constructor Summary

Constructors

Constructor and Description
PanZoomInterpreter(PanZoomController c)

Method Summary

Modifier and Type	Method and Description
protected void	appendStroke(LayerEvent e) Append the given new point/timestamp to the current stroke.
protected void	finishStroke() Called upon mouse released event.
boolean	isMotionEnabled() We're not handling motion events.
void	mouseDragged(LayerEvent e) Update the current stroke and its visual representation.
void	mousePressed(LayerEvent e) Instantiate a new stroke and add its visual representation as a symbol in the pane.
void	mouseReleased(LayerEvent e) Update the current stroke and its visual representation, and interpret the stroke using either the command recognizer or the UML recognizer.
protected void	removeCurrentFigure() Utility function.
protected void	startStroke() This method is invoked upon mouse down.

Methods inherited from class diva.canvas.interactor.AbstractInteractor

accept, getMouseFilter, isConsuming, isEnabled, mouseClicked, mouseEntered, mouseExited, mouseMoved, setConsuming, setEnabled, setMotionEnabled, setMouseFilter

Methods inherited from class java.lang.Object

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

Field Detail

PZ

public static final String PZ

See Also:

Constant Field Values

Constructor Detail

PanZoomInterpreter

public PanZoomInterpreter(PanZoomController c)
                   throws Exception

Throws:

Exception

Method Detail

appendStroke

protected final void appendStroke(LayerEvent e)

Append the given new point/timestamp to the current stroke.

removeCurrentFigure

protected void removeCurrentFigure()

Utility function. Remove the current figure from the figure layer.

startStroke

protected final void startStroke()

This method is invoked upon mouse down. A TimedStroke object and a BasicFigure object are created to represent the stroke being drawn. The figure is added to the pane, so that the user can see what he's drawing.

finishStroke

protected final void finishStroke()

Called upon mouse released event. Set current stroke, symbol and figure objects to null.

isMotionEnabled

public boolean isMotionEnabled()

We're not handling motion events.

Specified by:

isMotionEnabled in interface Interactor

Overrides:

isMotionEnabled in class AbstractInteractor

mouseDragged

public void mouseDragged(LayerEvent e)

Update the current stroke and its visual representation.

Specified by:

mouseDragged in interface LayerListener

Overrides:

mouseDragged in class AbstractInteractor

mousePressed

public void mousePressed(LayerEvent e)

Instantiate a new stroke and add its visual representation as a symbol in the pane.

Specified by:

mousePressed in interface LayerListener

Overrides:

mousePressed in class AbstractInteractor

mouseReleased

public void mouseReleased(LayerEvent e)

Update the current stroke and its visual representation, and interpret the stroke using either the command recognizer or the UML recognizer. This depends on with which mouse button the stroke is drawn.

Specified by:

mouseReleased in interface LayerListener

Overrides:

mouseReleased in class AbstractInteractor