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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class ImageGraphicAttribute - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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java.awt.font
Class ImageGraphicAttribute

java.lang.Object
  |
  +--java.awt.font.GraphicAttribute
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        +--java.awt.font.ImageGraphicAttribute

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public final class ImageGraphicAttribute

extends GraphicAttribute

The ImageGraphicAttribute class is an implementation of GraphicAttribute which draws images in a TextLayout.

See Also:

GraphicAttribute

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Fields inherited from class java.awt.font.GraphicAttribute

BOTTOM_ALIGNMENT, CENTER_BASELINE, HANGING_BASELINE, ROMAN_BASELINE, TOP_ALIGNMENT

 

Constructor Summary

ImageGraphicAttribute(Image image, int alignment)           Constucts an ImageGraphicAttribute from the specified Image.

ImageGraphicAttribute(Image image, int alignment, float originX, float originY)           Constructs an ImageGraphicAttribute from the specified Image.

 

Method Summary
void	draw(Graphics2D graphics, float x, float y)           Renders the graphic at the specified location.
boolean	equals(ImageGraphicAttribute rhs)           Compares this ImageGraphicAttribute to the specified ImageGraphicAttribute.
boolean	equals(Object rhs)           Compares this ImageGraphicAttribute to the specified Object.
float	getAdvance()           Returns the advance of this ImageGraphicAttribute.
float	getAscent()           Returns the ascent of this ImageGraphicAttribute.
Rectangle2D	getBounds()           Returns a Rectangle2D that encloses all of the bits rendered by this ImageGraphicAttribute, relative to the rendering position.
float	getDescent()           Returns the descent of this ImageGraphicAttribute
int	hashCode()           Returns a hashcode for this ImageGraphicAttribute.

 

Methods inherited from class java.awt.font.GraphicAttribute

getAlignment, getJustificationInfo

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

ImageGraphicAttribute

public ImageGraphicAttribute(Image image,
                             int alignment)

Constucts an ImageGraphicAttribute from the specified Image. The origin is at (0, 0).

Parameters:

image - the Image rendered by this ImageGraphicAttribute. This object keeps a reference to image.

alignment - one of the alignments from this ImageGraphicAttribute

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ImageGraphicAttribute

public ImageGraphicAttribute(Image image,
                             int alignment,
                             float originX,
                             float originY)

Constructs an ImageGraphicAttribute from the specified Image. The point (originX, originY) in the Image appears at the origin of the ImageGraphicAttribute within the text.

Parameters:

image - the Image rendered by this ImageGraphicAttribute. This object keeps a reference to image.

alignment - one of the alignments from this ImageGraphicAttribute

originX, originY - the coordinates of the point within the Image that appears at the origin of the ImageGraphicAttribute in the text line.

Method Detail

getAscent

public float getAscent()

Returns the ascent of this ImageGraphicAttribute. The ascent of an ImageGraphicAttribute is the distance from the top of the image to the origin.

Overrides:

getAscent in class GraphicAttribute

Returns:

the ascent of this ImageGraphicAttribute.

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getDescent

public float getDescent()

Returns the descent of this ImageGraphicAttributeImageGraphicAttribute is the distance from the origin to the bottom of the image.

Overrides:

getDescent in class GraphicAttribute

Returns:

the descent of this ImageGraphicAttribute.

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getAdvance

public float getAdvance()

Returns the advance of this ImageGraphicAttribute. The advance of an ImageGraphicAttribute is the distance from the origin to the right edge of the image.

Overrides:

getAdvance in class GraphicAttribute

Returns:

the advance of this ImageGraphicAttribute.

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getBounds

public Rectangle2D getBounds()

Returns a Rectangle2D that encloses all of the bits rendered by this ImageGraphicAttribute, relative to the rendering position. A graphic can be rendered beyond its origin, ascent, descent, or advance; but if it is, this method's implementation must indicate where the graphic is rendered.

Overrides:

getBounds in class GraphicAttribute

Returns:

a Rectangle2D that encloses all of the bits rendered by this ImageGraphicAttribute.

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draw

public void draw(Graphics2D graphics,
                 float x,
                 float y)

Renders the graphic at the specified location.

Overrides:

draw in class GraphicAttribute

Parameters:

graphics - the Graphics2D into which to render the graphic

x - the user-space coordinates where the graphic is rendered

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hashCode

public int hashCode()

Returns a hashcode for this ImageGraphicAttribute.

Overrides:

hashCode in class Object

Returns:

a hash code value for this object.

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equals

public boolean equals(Object rhs)

Compares this ImageGraphicAttribute to the specified Object.

Overrides:

equals in class Object

Parameters:

rhs - the Object to compare for equality

Returns:

true if this ImageGraphicAttribute equals rhs; false otherwise.

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equals

public boolean equals(ImageGraphicAttribute rhs)

Compares this ImageGraphicAttribute to the specified ImageGraphicAttribute.

Parameters:

rhs - the ImageGraphicAttribute to compare for equality

Returns:

true if this ImageGraphicAttribute equals rhs; false otherwise.

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