org.jdrawing.graphics
Class Style

java.lang.Object
  org.jdrawing.graphics.Style

public class Style

extends java.lang.Object

Encapsulates style information used to perform graphics operations.

Field Summary

static java.lang.String	BACKGROUND Key for background attribute.
static java.lang.String	CLIP Key for rendering clip attribute.
static java.lang.String	COMPOSITE Key for composite attribute.
static java.lang.String	FONT Key for font attribute.
static java.lang.String	PAINT Key for paint attribute.
static java.lang.String	RENDERING_HINTS Key for rendering hints attribute.
static java.lang.String	STROKE Key for stroke attribute.
static java.lang.String	TRANSFORM Key for transform attribute.

Constructor Summary

Style()
Constructs a new Style with defaults for all attributes.

Style(java.util.Map attributes)
Constructs a new Style with the specified attributes.

Method Summary

java.awt.Shape	createStrokedShape(java.awt.Shape shape) Returns an outline Shape which encloses the area that should be painted when the Shape is stroked according to the stroke attribute.
Style	deriveStyle(java.util.Map attributes) Creates a new Style object by replicating the current Style object and applying a new set of style attributes to it.
boolean	equals(java.lang.Object object) Checks whether two styles are equal.
java.awt.Color	getBackground() Returns the value of the background attribute of this style.
java.awt.Shape	getClip() Returns the value of the clip attribute of this style.
java.awt.Composite	getComposite() Returns the value of the composite attribute of this style.
static Style	getDefaultStyle() Returns the shared instance of style with defaults for all attributes.
java.awt.Font	getFont() Returns the value of the font attribute of this style.
java.awt.Paint	getPaint() Returns the value of the paint attribute of this style.
java.util.Map	getRenderingHints() Returns the value of the renderingHints attribute of this style.
java.awt.Rectangle	getShapeBounds(java.awt.Shape shape) Returns bounding box of the specified shape according to transform attribute.
java.awt.geom.Rectangle2D	getShapeBounds2D(java.awt.Shape shape) Returns high precision bounding box of the specified shape according to transform attribute.
java.awt.geom.Rectangle2D	getStringBounds(java.lang.String string, java.awt.font.FontRenderContext context) Returns bounding box of the specified string according to font attribute and specified FontRenderingContext.
java.awt.Stroke	getStroke() Returns the value of the stroke attribute of this style.
java.awt.geom.AffineTransform	getTransform() Returns the value of the transform attribute of this style.
int	hashCode() Returns the hashcode for this style.
boolean	shapeContains(java.awt.Shape shape, java.awt.geom.Point2D point) Tests if the specified shape contains the given point according to transform attribute.
boolean	shapeContains(java.awt.Shape shape, java.awt.geom.Rectangle2D rectangle) Tests if the specified shape contains the given rectangle according to transform attribute.
boolean	shapeIntersects(java.awt.Shape shape, java.awt.geom.Rectangle2D rectangle) Tests if the specified shape intersects with the given rectangle according to transform attribute.

Methods inherited from class java.lang.Object

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

Field Detail

BACKGROUND

public static final java.lang.String BACKGROUND

Key for background attribute. Value of this attribute must be an instance of class Color.

See Also:

Graphics2D.setBackground(java.awt.Color), Constant Field Values

FONT

public static final java.lang.String FONT

Key for font attribute. Value of this attribute must be an instance of class Font.

See Also:

Graphics.setFont(java.awt.Font), Constant Field Values

COMPOSITE

public static final java.lang.String COMPOSITE

Key for composite attribute. Value of this attribute must be an instance of class Composite.

See Also:

Graphics2D.setComposite(java.awt.Composite), Constant Field Values

PAINT

public static final java.lang.String PAINT

Key for paint attribute. Value of this attribute must be an instance of class Paint.

See Also:

Graphics2D.setPaint(java.awt.Paint), Constant Field Values

STROKE

public static final java.lang.String STROKE

Key for stroke attribute. Value of this attribute must be an instance of class Stroke.

See Also:

Graphics2D.setStroke(java.awt.Stroke), Constant Field Values

TRANSFORM

public static final java.lang.String TRANSFORM

Key for transform attribute. Value of this attribute must be an instance of class AffineTransform.

See Also:

Graphics2D.transform(java.awt.geom.AffineTransform), Constant Field Values

RENDERING_HINTS

public static final java.lang.String RENDERING_HINTS

Key for rendering hints attribute. Value of this attribute must implement interface Map.

See Also:

Graphics2D.setRenderingHints(java.util.Map), Constant Field Values

CLIP

public static final java.lang.String CLIP

Key for rendering clip attribute. Value of this attribute must be instance of class Shape.

See Also:

Graphics.setClip(int, int, int, int), Constant Field Values

Constructor Detail

Style

public Style()

Constructs a new Style with defaults for all attributes. The default attributes are the following:

• background: Color.WHITE;
• font: the result of new Font (null);
• composite: AlphaComposite.SrcOver;
• paint: Color.BLACK;
• stroke: the result of new BasicStroke ();
• transform: the result of new AffineTransform ();
• renderingHints: empty map;
• clip: null.

Style

public Style(java.util.Map attributes)

Constructs a new Style with the specified attributes. All unspecified attributes are assigned with default values.

Parameters:

attributes - the attributes to assign to the new Style

Method Detail

getDefaultStyle

public static Style getDefaultStyle()

Returns the shared instance of style with defaults for all attributes.

Returns:

default style

deriveStyle

public Style deriveStyle(java.util.Map attributes)

Creates a new Style object by replicating the current Style object and applying a new set of style attributes to it.

Parameters:

attributes - a map of attributes enabled for the new Style

Returns:

a new Style object

getBackground

public java.awt.Color getBackground()

Returns the value of the background attribute of this style.

Returns:

color value

getFont

public java.awt.Font getFont()

Returns the value of the font attribute of this style.

Returns:

font value

getComposite

public java.awt.Composite getComposite()

Returns the value of the composite attribute of this style.

Returns:

composite value

getPaint

public java.awt.Paint getPaint()

Returns the value of the paint attribute of this style.

Returns:

paint value

getStroke

public java.awt.Stroke getStroke()

Returns the value of the stroke attribute of this style.

Returns:

stroke value

getTransform

public java.awt.geom.AffineTransform getTransform()

Returns the value of the transform attribute of this style.

Returns:

transform value

getRenderingHints

public java.util.Map getRenderingHints()

Returns the value of the renderingHints attribute of this style.

Returns:

rendering hints value

getClip

public java.awt.Shape getClip()

Returns the value of the clip attribute of this style.

Returns:

clip value

getStringBounds

public java.awt.geom.Rectangle2D getStringBounds(java.lang.String string,
                                                 java.awt.font.FontRenderContext context)

Returns bounding box of the specified string according to font attribute and specified FontRenderingContext.

Parameters:

string - the specified String

context - the specified FontRenderingContext

Returns:

a Rectangle2D that is the bounding box of the specified String

getShapeBounds

public java.awt.Rectangle getShapeBounds(java.awt.Shape shape)

Returns bounding box of the specified shape according to transform attribute.

Parameters:

shape - the specified shape

Returns:

a Rectangle that is the bounding box of the specified shape

getShapeBounds2D

public java.awt.geom.Rectangle2D getShapeBounds2D(java.awt.Shape shape)

Returns high precision bounding box of the specified shape according to transform attribute.

Parameters:

shape - the specified shape

Returns:

a Rectangle2D that is the bounding box of the specified shape

shapeIntersects

public boolean shapeIntersects(java.awt.Shape shape,
                               java.awt.geom.Rectangle2D rectangle)

Tests if the specified shape intersects with the given rectangle according to transform attribute.

Parameters:

shape - the specified shape

rectangle - the given rectangle

Returns:

true if the specified shape intersects with the given rectangle; false otherwise

shapeContains

public boolean shapeContains(java.awt.Shape shape,
                             java.awt.geom.Rectangle2D rectangle)

Tests if the specified shape contains the given rectangle according to transform attribute.

Parameters:

shape - the specified shape

rectangle - the given rectangle

Returns:

true if the specified shape contains the given rectangle; false otherwise

shapeContains

public boolean shapeContains(java.awt.Shape shape,
                             java.awt.geom.Point2D point)

Tests if the specified shape contains the given point according to transform attribute.

Parameters:

shape - the specified shape

point - the given point

Returns:

true if the specified shape contains the given point; false otherwise

createStrokedShape

public java.awt.Shape createStrokedShape(java.awt.Shape shape)

Returns an outline Shape which encloses the area that should be painted when the Shape is stroked according to the stroke attribute.

Parameters:

shape - the specified shape

Returns:

the stroked outline Shape

equals

public boolean equals(java.lang.Object object)

Checks whether two styles are equal. The result is true if and only if the argument is not null and is a Style object that has the same attributes as this Style.

Parameters:

object - the Object to compare with this Style

Returns:

true if the objects are equal; false otherwise.

hashCode

public int hashCode()

Returns the hashcode for this style.

Returns:

a hash code for this style.