org.jdesktop.swingx.painter
Class ImagePainter

java.lang.Object
  org.jdesktop.beans.AbstractBean
      org.jdesktop.swingx.painter.AbstractPainter<T>
          org.jdesktop.swingx.painter.AbstractLayoutPainter<T>
              org.jdesktop.swingx.painter.AbstractAreaPainter<Object>
                  org.jdesktop.swingx.painter.ImagePainter

All Implemented Interfaces:

Painter<Object>

public class ImagePainter
extends AbstractAreaPainter<Object>

A Painter instance that paints an image. Any Image is acceptable. This Painter also allows the developer to specify a "Style" -- CENTERED, TILED, SCALED, POSITIONED, and CSS_POSITIONED; with the following meanings:

• CENTERED: draws the image unscaled and positioned in the center of the component
• TILED: draws the image repeatedly across the component, filling the entire background.
• SCALED: draws the image stretched large enough (or small enough) to cover the entire component. The stretch may not preserve the aspect ratio of the original image.
• POSITIONED: draws the image at the location specified by the imageLocation property. This style of drawing will respect the imageScale property.
• CSS_POSITIONED: draws the image using CSS style background positioning. It will use the location specified by the imageLocation property. This property should contain a point with the x and y values between 0 and 1. 0,0 will put the image in the upper left hand corner, 1,1 in the lower right, and 0.5,0.5 in the center. All other values will be interpolated accordingly. For a more complete definition of the positioning algorithm see the CSS 2.1 spec.

Nested Class Summary

static class

ImagePainter.ScaleType

Nested classes/interfaces inherited from class org.jdesktop.swingx.painter.AbstractAreaPainter

AbstractAreaPainter.Style

Nested classes/interfaces inherited from class org.jdesktop.swingx.painter.AbstractLayoutPainter

AbstractLayoutPainter.HorizontalAlignment, AbstractLayoutPainter.VerticalAlignment

Nested classes/interfaces inherited from class org.jdesktop.swingx.painter.AbstractPainter

AbstractPainter.Interpolation

Constructor Summary

ImagePainter()
Create a new ImagePainter.

ImagePainter(BufferedImage image)
Create a new ImagePainter with the specified image and the Style Style.CENTERED

ImagePainter(BufferedImage image, AbstractLayoutPainter.HorizontalAlignment horizontal, AbstractLayoutPainter.VerticalAlignment vertical)
Create a new ImagePainter with the specified image and alignment.

ImagePainter(URL url)

ImagePainter(URL url, AbstractLayoutPainter.HorizontalAlignment horizontal, AbstractLayoutPainter.VerticalAlignment vertical)

Method Summary

protected void	doPaint(Graphics2D g, Object component, int width, int height) Subclasses must implement this method and perform custom painting operations here.
BufferedImage	getImage() Gets the current image used for painting.
double	getImageScale() Gets the current scaling factor used when drawing an image.
String	getImageString() Used by the persistence mechanism.
ImagePainter.ScaleType	getScaleType()
boolean	isHorizontalRepeat() Indicates if the image will be repeated horizontally.
boolean	isScaleToFit()
boolean	isVerticalRepeat() Indicates if the image will be repeated vertically.
protected Shape	provideShape(Graphics2D g, Object comp, int width, int height) Returns the outline shape of this painter.
void	setHorizontalRepeat(boolean horizontalRepeat) Sets if the image should be repeated horizontally.
void	setImage(BufferedImage image) Sets the image to paint with.
void	setImageScale(double imageScale) Sets the scaling factor used when drawing the image
void	setImageString(String imageString) Used by the persistence mechanism.
void	setScaleToFit(boolean scaleToFit)
void	setScaleType(ImagePainter.ScaleType scaleType)
void	setVerticalRepeat(boolean verticalRepeat) Sets if the image should be repeated vertically.

Methods inherited from class org.jdesktop.swingx.painter.AbstractAreaPainter

getAreaEffects, getBorderPaint, getBorderWidth, getFillPaint, getStyle, isPaintStretched, setAreaEffects, setBorderPaint, setBorderWidth, setFillPaint, setPaintStretched, setStyle

Methods inherited from class org.jdesktop.swingx.painter.AbstractLayoutPainter

calculateLayout, getHorizontalAlignment, getInsets, getVerticalAlignment, isFillHorizontal, isFillVertical, setFillHorizontal, setFillVertical, setHorizontalAlignment, setInsets, setVerticalAlignment

Methods inherited from class org.jdesktop.swingx.painter.AbstractPainter

clearCache, configureGraphics, getFilters, getInterpolation, isAntialiasing, isCacheable, isDirty, isVisible, paint, setAntialiasing, setCacheable, setDirty, setFilters, setInterpolation, setVisible, shouldUseCache, validate

Methods inherited from class org.jdesktop.beans.AbstractBean

addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, addVetoableChangeListener, clone, fireIndexedPropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, fireVetoableChange, getPropertyChangeListeners, getPropertyChangeListeners, getVetoableChangeListeners, getVetoableChangeListeners, hasPropertyChangeListeners, hasVetoableChangeListeners, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, removeVetoableChangeListener

Methods inherited from class java.lang.Object

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

Constructor Detail

ImagePainter

public ImagePainter()

Create a new ImagePainter. By default there is no image, and the alignment is centered.

ImagePainter

public ImagePainter(BufferedImage image)

Create a new ImagePainter with the specified image and the Style Style.CENTERED

Parameters:

image - the image to be painted

ImagePainter

public ImagePainter(BufferedImage image,
                    AbstractLayoutPainter.HorizontalAlignment horizontal,
                    AbstractLayoutPainter.VerticalAlignment vertical)

Create a new ImagePainter with the specified image and alignment.

Parameters:

horizontal - the horizontal alignment

vertical - the vertical alignment

image - the image to be painted

ImagePainter

public ImagePainter(URL url)
             throws IOException

Throws:

IOException

ImagePainter

public ImagePainter(URL url,
                    AbstractLayoutPainter.HorizontalAlignment horizontal,
                    AbstractLayoutPainter.VerticalAlignment vertical)
             throws IOException

Throws:

IOException

Method Detail

setImage

public void setImage(BufferedImage image)

Sets the image to paint with.

Parameters:

image - if null, clears the image. Otherwise, this will set the image to be painted.

getImage

public BufferedImage getImage()

Gets the current image used for painting.

Returns:

the image used for painting

doPaint

protected void doPaint(Graphics2D g,
                       Object component,
                       int width,
                       int height)

Subclasses must implement this method and perform custom painting operations here.

Specified by:

doPaint in class AbstractPainter<Object>

Parameters:

g - The Graphics2D object in which to paint

setScaleToFit

public void setScaleToFit(boolean scaleToFit)

isScaleToFit

public boolean isScaleToFit()

setImageScale

public void setImageScale(double imageScale)

Sets the scaling factor used when drawing the image

Parameters:

imageScale - the new image scaling factor

getImageScale

public double getImageScale()

Gets the current scaling factor used when drawing an image.

Returns:

the current scaling factor

getImageString

public String getImageString()

Used by the persistence mechanism.

setImageString

public void setImageString(String imageString)

Used by the persistence mechanism.

isHorizontalRepeat

public boolean isHorizontalRepeat()

Indicates if the image will be repeated horizontally.

Returns:

if the image will be repeated horizontally

setHorizontalRepeat

public void setHorizontalRepeat(boolean horizontalRepeat)

Sets if the image should be repeated horizontally.

Parameters:

horizontalRepeat - the new horizontal repeat value

isVerticalRepeat

public boolean isVerticalRepeat()

Indicates if the image will be repeated vertically.

Returns:

if the image will be repeated vertically

setVerticalRepeat

public void setVerticalRepeat(boolean verticalRepeat)

Sets if the image should be repeated vertically.

Parameters:

verticalRepeat - new value for the vertical repeat

provideShape

protected Shape provideShape(Graphics2D g,
                             Object comp,
                             int width,
                             int height)

Description copied from class: AbstractAreaPainter

Returns the outline shape of this painter. Subclasses must implement this method. This shape will be used for filling, stroking, and clipping.

Specified by:

provideShape in class AbstractAreaPainter<Object>

Parameters:

g - graphics

comp - The Object this painter will be painted on.

width - the width to paint

height - the height to paint

Returns:

the outline shape of this painter

getScaleType

public ImagePainter.ScaleType getScaleType()

setScaleType

public void setScaleType(ImagePainter.ScaleType scaleType)