org.imajine.image.render

Class ScaleController

java.lang.Object

org.imajine.image.render.ScaleController

Direct Known Subclasses:

AnimatedScaleController

public class ScaleController
extends Object

The ScaleController makes it possible to control the scale of the image in an EditableImageRenderer. In order to be used, you just have to create a new instance passing the EditableImageRenderer as a parameter:

 EditableImageRenderer renderer = ...;
 ScaleController scaleController = new ScaleController(renderer);
 ...
 scaleController.setScale(2.5);
 

Version:

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

Author:

Fabrizio Giudici

Field Summary

Fields

Modifier and Type	Field and Description
protected EditableImageRenderer	imageRenderer The attached renderer.

Constructor Summary

Constructors

Constructor and Description
ScaleController(EditableImageRenderer imageRenderer) Creates a new instance of this class, attached to the given renderer.

Method Summary

Methods

Modifier and Type	Method and Description
void	fitToView() Fits the image into the current view: the image is resized so it's not clipped, and it's centered on the screen.
void	fitToView(double factor)
protected EditableImageRenderer	getImageRenderer()
double	getScale() Returns the current scale.
double	getZoomFactor() Returns the current zoom factor.
void	setScale(double scale) Sets the scale.
void	setScale(double scale, Point pivot) Sets the scale using a pivot point.
void	setZoomFactor(double zoomFactor) Sets the zoom factor that is used by zoomIn() and zoomOut.
void	showActualPixels() Sets the scale to 1:1.
void	zoomIn() Zooms in.
void	zoomOut() Zooms out.

Methods inherited from class java.lang.Object

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

Field Detail

imageRenderer

protected final EditableImageRenderer imageRenderer

The attached renderer.

Constructor Detail

ScaleController

public ScaleController(EditableImageRenderer imageRenderer)

Creates a new instance of this class, attached to the given renderer.

Parameters:

imageRenderer - the image renderer

Method Detail

setScale

public final void setScale(double scale)

Sets the scale.

Parameters:

scale - the new scale

setScale

public void setScale(double scale,
            Point pivot)

Sets the scale using a pivot point. A null pivot means that the pivot will be placed on the center of the image.

Parameters:

scale - the new scale

pivot - the pivot point (null means the center of the image)

getScale

public double getScale()

Returns the current scale.

Returns:

the current scale

setZoomFactor

public void setZoomFactor(double zoomFactor)

Sets the zoom factor that is used by zoomIn() and zoomOut.

Parameters:

zoomFactor - the new zoom factor

getZoomFactor

public double getZoomFactor()

Returns the current zoom factor.

Returns:

the currnet zoom factor

fitToView

public void fitToView()

Fits the image into the current view: the image is resized so it's not clipped, and it's centered on the screen.

fitToView

public void fitToView(double factor)

zoomOut

public void zoomOut()

Zooms out.

zoomIn

public void zoomIn()

Zooms in.

showActualPixels

public void showActualPixels()

Sets the scale to 1:1.

getImageRenderer

protected EditableImageRenderer getImageRenderer()

Returns:

the image renderer