com.sharkysoft.fig.interactive.interactor

Class SwtTransformInteractor

java.lang.Object

com.sharkysoft.fig.interactive.interactor.SwtTransformInteractor

All Implemented Interfaces:

FigMouseButtonListener, FigMouseListener, FigMouseMotionListener, TransformInteractor

public final class SwtTransformInteractor
extends Object
implements TransformInteractor, FigMouseButtonListener, FigMouseMotionListener

Transformer designed for AWT environment.

Details: An SwtTransformInteractor listens to mouse events within a figure's view and interactively transforms the view in a manner that is suitable for views rendered in the SWT environment. This does not mean, however, that this transform interactor cannot be used with other toolkits. That is why this class is kept in fig-core, rather than fig-awt.

Left-clicking and dragging translates the view. Rotating the mouse wheel without pressing it changes the scale. Rotating the mouse wheel while pressing it rotates the view.

The public methods in this class are callbacks reserved for internal use and should not be invoked directly by client software.

Author:

Sharky

Constructor Summary

Constructors

Constructor and Description
SwtTransformInteractor()

Method Summary

Methods

Modifier and Type	Method and Description
void	mouseButtonPressed(FigMouseEvent iEvent) Arms translation or rotation.
void	mouseButtonReleased(FigMouseEvent iEvent) Disarms translation or rotation.
void	mouseCursorEntered(FigMouseEvent iEvent) Ignored.
void	mouseCursorExited(FigMouseEvent iEvent) Ignored.
void	mouseCursorMoved(FigMouseEvent iEvent) Translates view.

Methods inherited from class java.lang.Object

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

Constructor Detail

SwtTransformInteractor

public SwtTransformInteractor()

Method Detail

mouseButtonPressed

public void mouseButtonPressed(FigMouseEvent iEvent)

Arms translation or rotation.

Details: This implementation arms the transformer for translation or rotation, depending on which button was pressed.

Specified by:

mouseButtonPressed in interface FigMouseButtonListener

Parameters:

iEvent - the mouse button event

See Also:

FigMouseButtonListener.mouseButtonReleased(FigMouseEvent)

mouseButtonReleased

public void mouseButtonReleased(FigMouseEvent iEvent)

Disarms translation or rotation.

Details: This implementation disarms the transformer for translation or rotation, depending on which mouse button was released.

Specified by:

mouseButtonReleased in interface FigMouseButtonListener

Parameters:

iEvent - the mouse button event

mouseCursorMoved

public void mouseCursorMoved(FigMouseEvent iEvent)

Translates view.

Details: This implementation translates the view in response to mouse movement, if translation is armed.

Specified by:

mouseCursorMoved in interface FigMouseMotionListener

Parameters:

iEvent - the movement event

mouseCursorEntered

public void mouseCursorEntered(FigMouseEvent iEvent)

Ignored.

Details: This event is ignored.

Specified by:

mouseCursorEntered in interface FigMouseMotionListener

Parameters:

iEvent - describes the event

mouseCursorExited

public void mouseCursorExited(FigMouseEvent iEvent)

Ignored.

Details: This event is ignored.

Specified by:

mouseCursorExited in interface FigMouseMotionListener

Parameters:

iEvent - describes the event