org.imajine.image.render

Class MouseClickZoomingController

java.lang.Object

org.imajine.image.render.MouseClickZoomingController

public class MouseClickZoomingController
extends Object

This class activates zoom-by-click, that is the capability of zooming in and out on the image by clicking with the mouse over it. The click toggles the zoom between the 1:1 and the 'fit to view' values. The actual zooming behaviour is delegated to a ScaleController, which allows to plug different implementations (e.g. animations).

Version:

$Id: MouseClickZoomingController.java,v 20e39e8c9fac 2012/02/02 16:35:02 fabrizio $

Author:

Fabrizio Giudici

Constructor Summary

Constructors

Constructor and Description
MouseClickZoomingController(ScaleController scaleController) Creates a new instance of this class, attached to a ScaleController.

Method Summary

Methods

Modifier and Type	Method and Description
int	getClickCountToZoom() Returns the number of clicks requested to trigger the zooming.
double	getFactor()
boolean	isEnabled() Returns true if the controller is enabled.
void	setClickCountToZoom(int clickCountToZoom) Sets the number of clicks requested to trigger the zooming.
void	setEnabled(boolean enabled) Enables or disables this controller.
void	setFactor(double factor)

Methods inherited from class java.lang.Object

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

Constructor Detail

MouseClickZoomingController

public MouseClickZoomingController(ScaleController scaleController)

Creates a new instance of this class, attached to a ScaleController. This controller must be activated with setEnabled(true) in order to be used.

Parameters:

scaleController - the scale controller

Method Detail

setClickCountToZoom

public void setClickCountToZoom(int clickCountToZoom)

Sets the number of clicks requested to trigger the zooming.

Parameters:

clickCountToZoom - the number of clicks

getClickCountToZoom

public int getClickCountToZoom()

Returns the number of clicks requested to trigger the zooming.

setEnabled

public void setEnabled(boolean enabled)

Enables or disables this controller. As this class attaches some listeners to the image renderer component, it's advisable to disable it when it's not needed, in order to facilitate garbage collection.

Parameters:

enabled - true if must be enabled, false otherwise

isEnabled

public boolean isEnabled()

Returns true if the controller is enabled.

Returns:

true if enabled

setFactor

public void setFactor(double factor)

getFactor

public double getFactor()