Package pamViewFX.fxgraphics2d

Class FXGraphics2D

java.lang.Object

java.awt.Graphics

java.awt.Graphics2D

pamViewFX.fxgraphics2d.FXGraphics2D

public class FXGraphics2D
extends Graphics2D

A Graphics2D implementation that writes to a JavaFX Canvas. This is intended for general purpose usage, but has been created for use in Orson Charts (http://www.object-refinery.com/orsoncharts/) and JFreeChart (http://www.jfree.org/jfreechart/).

Constructor Summary

Constructors

Constructor	Description
FXGraphics2D(javafx.scene.canvas.GraphicsContext gc)	Creates a new instance that will render to the specified JavaFX GraphicsContext.

Method Summary

Modifier and Type	Method	Description
void	addRenderingHints(Map<?,?> hints)	Adds all the supplied rendering hints.
void	clearRect(int x, int y, int width, int height)	Clears the specified rectangle by filling it with the current background color.
void	clip(Shape s)	Clips to the intersection of the current clipping region and the specified shape.
void	clipRect(int x, int y, int width, int height)	Clips to the intersection of the current clipping region and the specified rectangle.
void	copyArea(int x, int y, int width, int height, int dx, int dy)	Not yet implemented.
Graphics	create()	Creates a new graphics object that is a copy of this graphics object.
GeneralPath	createPolygon(int[] xPoints, int[] yPoints, int nPoints, boolean close)	Creates a polygon from the specified x and y coordinate arrays.
void	dispose()	This method does nothing.
void	draw(Shape s)	Draws the specified shape with the current paint and stroke.
void	drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)	Draws an arc contained within the rectangle (x, y, width, height), starting at startAngle and continuing through arcAngle degrees using the current paint and stroke.
void	drawGlyphVector(GlyphVector g, float x, float y)	Draws the specified glyph vector at the location (x, y).
void	drawImage(BufferedImage img, BufferedImageOp op, int x, int y)	Draws the image resulting from applying the BufferedImageOp to the specified image at the location (x, y).
boolean	drawImage(Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, Color bgcolor, ImageObserver observer)	Draws part of an image (defined by the source rectangle (sx1, sy1, sx2, sy2)) into the destination rectangle (dx1, dy1, dx2, dy2).
boolean	drawImage(Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, ImageObserver observer)	Draws part of an image (defined by the source rectangle (sx1, sy1, sx2, sy2)) into the destination rectangle (dx1, dy1, dx2, dy2).
boolean	drawImage(Image img, int x, int y, int w, int h, Color bgcolor, ImageObserver observer)	Draws an image to the rectangle (x, y, w, h) (scaling it if required), first filling the background with the specified color.
boolean	drawImage(Image img, int x, int y, int width, int height, ImageObserver observer)	Draws an image at the location (x, y).
boolean	drawImage(Image img, int x, int y, Color bgcolor, ImageObserver observer)	Draws an image at the location (x, y).
boolean	drawImage(Image img, int x, int y, ImageObserver observer)	Draws an image at the location (x, y).
boolean	drawImage(Image img, AffineTransform xform, ImageObserver obs)	Draws an image with the specified transform.
void	drawLine(int x1, int y1, int x2, int y2)	Draws a line from (x1, y1) to (x2, y2) using the current paint and stroke.
void	drawOval(int x, int y, int width, int height)	Draws an oval framed by the rectangle (x, y, width, height) using the current paint and stroke.
void	drawPolygon(int[] xPoints, int[] yPoints, int nPoints)	Draws the specified polygon using the current paint and stroke.
void	drawPolyline(int[] xPoints, int[] yPoints, int nPoints)	Draws the specified multi-segment line using the current paint and stroke.
void	drawRenderableImage(RenderableImage img, AffineTransform xform)	Draws the renderable image.
void	drawRenderedImage(RenderedImage img, AffineTransform xform)	Draws a rendered image.
void	drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)	Draws a rectangle with rounded corners using the current paint and stroke.
void	drawString(String str, float x, float y)	Draws a string at (x, y).
void	drawString(String str, int x, int y)	Draws a string at (x, y).
void	drawString(AttributedCharacterIterator iterator, float x, float y)	Draws a string of attributed characters at (x, y).
void	drawString(AttributedCharacterIterator iterator, int x, int y)	Draws a string of attributed characters at (x, y).
void	fill(Shape s)	Fills the specified shape with the current paint.
void	fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)	Fills an arc contained within the rectangle (x, y, width, height), starting at startAngle and continuing through arcAngle degrees, using the current paint.
void	fillOval(int x, int y, int width, int height)	Fills an oval framed by the rectangle (x, y, width, height).
void	fillPolygon(int[] xPoints, int[] yPoints, int nPoints)	Fills the specified polygon using the current paint.
void	fillRect(int x, int y, int width, int height)	Fills the specified rectangle with the current paint.
void	fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)	Fills a rectangle with rounded corners using the current paint.
Color	getBackground()	Returns the background color (the default value is Color.BLACK).
Shape	getClip()	Returns the user clipping region.
Rectangle	getClipBounds()	Returns the bounds of the user clipping region.
Color	getColor()	Returns the foreground color.
Composite	getComposite()	Returns the current composite.
GraphicsConfiguration	getDeviceConfiguration()	Returns the device configuration.
Font	getFont()	Returns the current font used for drawing text.
FontMetrics	getFontMetrics(Font f)	Returns the font metrics for the specified font.
FontRenderContext	getFontRenderContext()	Returns the font render context.
Paint	getPaint()	Returns the paint used to draw or fill shapes (or text).
Object	getRenderingHint(RenderingHints.Key hintKey)	Returns the current value for the specified hint.
RenderingHints	getRenderingHints()	Returns a copy of the rendering hints.
Stroke	getStroke()	Returns the current stroke (this attribute is used when drawing shapes).
AffineTransform	getTransform()	Returns a copy of the current transform.
double	getZeroStrokeWidth()	Returns the width to use for the stroke when the AWT stroke specified has a zero width (the default value is 0.5).
boolean	hit(Rectangle rect, Shape s, boolean onStroke)	Returns true if the rectangle (in device space) intersects with the shape (the interior, if onStroke is false, otherwise the stroked outline of the shape).
void	rotate(double theta)	Applies a rotation (anti-clockwise) about (0, 0).
void	rotate(double theta, double x, double y)	Applies a rotation (anti-clockwise) about (x, y).
void	scale(double sx, double sy)	Applies a scale transformation.
void	setBackground(Color color)	Sets the background color.
void	setClip(int x, int y, int width, int height)	Sets the user clipping region to the specified rectangle.
void	setClip(Shape shape)	Sets the user clipping region.
void	setColor(Color c)	Sets the foreground color.
void	setComposite(Composite comp)	Sets the composite.
void	setFont(Font font)	Sets the font to be used for drawing text.
void	setPaint(Paint paint)	Sets the paint used to draw or fill shapes (or text).
void	setPaintMode()	Not implemented - the method does nothing.
void	setRenderingHint(RenderingHints.Key hintKey, Object hintValue)	Sets the value for a hint.
void	setRenderingHints(Map<?,?> hints)	Sets the rendering hints to the specified collection.
void	setStroke(Stroke s)	Sets the stroke that will be used to draw shapes.
void	setTransform(AffineTransform t)	Sets the transform.
void	setXORMode(Color c1)	Not implemented - the method does nothing.
void	setZeroStrokeWidth(double width)	Sets the width to use for the stroke when setting a new AWT stroke that has a width of 0.0.
void	shear(double shx, double shy)	Applies a shear transformation.
void	transform(AffineTransform t)	Applies this transform to the existing transform by concatenating it.
void	translate(double tx, double ty)	Applies the translation (tx, ty).
void	translate(int tx, int ty)	Applies the translation (tx, ty).

Methods inherited from class java.awt.Graphics2D

draw3DRect, fill3DRect

Methods inherited from class java.awt.Graphics

create, drawBytes, drawChars, drawPolygon, drawRect, fillPolygon, finalize, getClipBounds, getClipRect, getFontMetrics, hitClip, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

FXGraphics2D

public FXGraphics2D(javafx.scene.canvas.GraphicsContext gc)

Creates a new instance that will render to the specified JavaFX GraphicsContext.

Parameters:

gc - the graphics context (null not permitted).

Method Details

getZeroStrokeWidth

public double getZeroStrokeWidth()

Returns the width to use for the stroke when the AWT stroke specified has a zero width (the default value is 0.5).

In the Java specification for BasicStroke it states "If width is set to 0.0f, the stroke is rendered as the thinnest possible line for the target device and the antialias hint setting." We don't have a means to implement that accurately since we must specify a fixed width to the JavaFX canvas - this attribute is the width that is used.

Returns:

The width.

setZeroStrokeWidth

public void setZeroStrokeWidth(double width)

Sets the width to use for the stroke when setting a new AWT stroke that has a width of 0.0.

Parameters:

width - the new width (must be 0.0 or greater).

getDeviceConfiguration

public GraphicsConfiguration getDeviceConfiguration()

Returns the device configuration.

Specified by:

getDeviceConfiguration in class Graphics2D

Returns:

The device configuration (never null).

create

public Graphics create()

Creates a new graphics object that is a copy of this graphics object.

Specified by:

create in class Graphics

Returns:

A new graphics object.

getPaint

public Paint getPaint()

Returns the paint used to draw or fill shapes (or text). The default value is Color.BLACK. This attribute is updated by both the setPaint(java.awt.Paint) and setColor(java.awt.Color) methods.

Specified by:

getPaint in class Graphics2D

Returns:

The paint (never null).

See Also:

• setPaint(java.awt.Paint)

setPaint

public void setPaint(Paint paint)

Sets the paint used to draw or fill shapes (or text). If paint is an instance of Color, this method will also update the current color attribute (see getColor()). If you pass null to this method, it does nothing (in accordance with the JDK specification).

Note that this implementation will map Color, GradientPaint, LinearGradientPaint and RadialGradientPaint to JavaFX equivalents, other paint implementations are not handled.

Specified by:

setPaint in class Graphics2D

Parameters:

paint - the paint (null is permitted but ignored).

See Also:

• getPaint()

getColor

public Color getColor()

Returns the foreground color. This method exists for backwards compatibility in AWT, you should use the getPaint() method. This attribute is updated by the setColor(java.awt.Color) method, and also by the setPaint(java.awt.Paint) method if a Color instance is passed to the method.

Specified by:

getColor in class Graphics

Returns:

The foreground color (never null).

See Also:

• getPaint()

setColor

public void setColor(Color c)

Sets the foreground color. This method exists for backwards compatibility in AWT, you should use the setPaint(java.awt.Paint) method.

Specified by:

setColor in class Graphics

Parameters:

c - the color (null permitted but ignored).

See Also:

• setPaint(java.awt.Paint)

getBackground

public Color getBackground()

Returns the background color (the default value is Color.BLACK). This attribute is used by the clearRect(int, int, int, int) method.

Specified by:

getBackground in class Graphics2D

Returns:

The background color (possibly null).

See Also:

• setBackground(java.awt.Color)

setBackground

public void setBackground(Color color)

Sets the background color. This attribute is used by the clearRect(int, int, int, int) method. The reference implementation allows null for the background color so we allow that too (but for that case, the clearRect(int, int, int, int) method will do nothing).

Specified by:

setBackground in class Graphics2D

Parameters:

color - the color (null permitted).

See Also:

• getBackground()

getComposite

public Composite getComposite()

Returns the current composite.

Specified by:

getComposite in class Graphics2D

Returns:

The current composite (never null).

See Also:

• setComposite(java.awt.Composite)

setComposite

public void setComposite(Composite comp)

Sets the composite. There is limited handling for AlphaComposite, other composites will have no effect on the output.

Specified by:

setComposite in class Graphics2D

Parameters:

comp - the composite (null not permitted).

See Also:

• getComposite()

getStroke

public Stroke getStroke()

Returns the current stroke (this attribute is used when drawing shapes).

Specified by:

getStroke in class Graphics2D

Returns:

The current stroke (never null).

See Also:

• setStroke(java.awt.Stroke)

setStroke

public void setStroke(Stroke s)

Sets the stroke that will be used to draw shapes.

Specified by:

setStroke in class Graphics2D

Parameters:

s - the stroke (null not permitted).

See Also:

• getStroke()

getRenderingHint

public Object getRenderingHint(RenderingHints.Key hintKey)

Returns the current value for the specified hint. Note that all hints are currently ignored in this implementation.

Specified by:

getRenderingHint in class Graphics2D

Parameters:

hintKey - the hint key (null permitted, but the result will be null also in that case).

Returns:

The current value for the specified hint (possibly null).

See Also:

• setRenderingHint(java.awt.RenderingHints.Key, java.lang.Object)

setRenderingHint

public void setRenderingHint(RenderingHints.Key hintKey,
 Object hintValue)

Sets the value for a hint. Note that all hints are currently ignored in this implementation.

Specified by:

setRenderingHint in class Graphics2D

Parameters:

hintKey - the hint key (null not permitted).

hintValue - the hint value.

See Also:

• getRenderingHint(java.awt.RenderingHints.Key)

getRenderingHints

public RenderingHints getRenderingHints()

Returns a copy of the rendering hints. Modifying the returned copy will have no impact on the state of this Graphics2D instance.

Specified by:

getRenderingHints in class Graphics2D

Returns:

The rendering hints (never null).

See Also:

• setRenderingHints(java.util.Map)

setRenderingHints

public void setRenderingHints(Map<?,?> hints)

Sets the rendering hints to the specified collection.

Specified by:

setRenderingHints in class Graphics2D

Parameters:

hints - the new set of hints (null not permitted).

See Also:

• getRenderingHints()

addRenderingHints

public void addRenderingHints(Map<?,?> hints)

Adds all the supplied rendering hints.

Specified by:

addRenderingHints in class Graphics2D

Parameters:

hints - the hints (null not permitted).

draw

public void draw(Shape s)

Draws the specified shape with the current paint and stroke. There is direct handling for Line2D, Rectangle2D, Ellipse2D, Arc2D and Path2D. All other shapes are mapped to a path outline and then drawn.

Specified by:

draw in class Graphics2D

Parameters:

s - the shape (null not permitted).

See Also:

• fill(java.awt.Shape)

fill

public void fill(Shape s)

Fills the specified shape with the current paint. There is direct handling for RoundRectangle2D, Rectangle2D, Ellipse2D and Arc2D. All other shapes are mapped to a path outline and then filled.

Specified by:

fill in class Graphics2D

Parameters:

s - the shape (null not permitted).

See Also:

• draw(java.awt.Shape)

getFont

public Font getFont()

Returns the current font used for drawing text.

Specified by:

getFont in class Graphics

Returns:

The current font (never null).

See Also:

• setFont(java.awt.Font)

setFont

public void setFont(Font font)

Sets the font to be used for drawing text.

Specified by:

setFont in class Graphics

Parameters:

font - the font (null is permitted but ignored).

See Also:

• getFont()

getFontMetrics

public FontMetrics getFontMetrics(Font f)

Returns the font metrics for the specified font.

Specified by:

getFontMetrics in class Graphics

Parameters:

f - the font.

Returns:

The font metrics.

getFontRenderContext

public FontRenderContext getFontRenderContext()

Returns the font render context. The implementation here returns the FontRenderContext for an image that is maintained internally (as for getFontMetrics(java.awt.Font)).

Specified by:

getFontRenderContext in class Graphics2D

Returns:

The font render context.

drawString

public void drawString(String str,
 int x,
 int y)

Draws a string at (x, y). The start of the text at the baseline level will be aligned with the (x, y) point.

Specified by:

drawString in class Graphics2D

Parameters:

str - the string (null not permitted).

x - the x-coordinate.

y - the y-coordinate.

See Also:

• drawString(java.lang.String, float, float)

drawString

public void drawString(String str,
 float x,
 float y)

Draws a string at (x, y). The start of the text at the baseline level will be aligned with the (x, y) point.

Specified by:

drawString in class Graphics2D

Parameters:

str - the string (null not permitted).

x - the x-coordinate.

y - the y-coordinate.

drawString

public void drawString(AttributedCharacterIterator iterator,
 int x,
 int y)

Draws a string of attributed characters at (x, y). The call is delegated to drawString(AttributedCharacterIterator, float, float).

Specified by:

drawString in class Graphics2D

Parameters:

iterator - an iterator for the characters.

x - the x-coordinate.

y - the x-coordinate.

drawString

public void drawString(AttributedCharacterIterator iterator,
 float x,
 float y)

Draws a string of attributed characters at (x, y).

Specified by:

drawString in class Graphics2D

Parameters:

iterator - an iterator over the characters (null not permitted).

x - the x-coordinate.

y - the y-coordinate.

drawGlyphVector

public void drawGlyphVector(GlyphVector g,
 float x,
 float y)

Draws the specified glyph vector at the location (x, y).

Specified by:

drawGlyphVector in class Graphics2D

Parameters:

g - the glyph vector (null not permitted).

x - the x-coordinate.

y - the y-coordinate.

translate

public void translate(int tx,
 int ty)

Applies the translation (tx, ty). This call is delegated to translate(double, double).

Specified by:

translate in class Graphics2D

Parameters:

tx - the x-translation.

ty - the y-translation.

See Also:

• translate(double, double)

translate

public void translate(double tx,
 double ty)

Applies the translation (tx, ty).

Specified by:

translate in class Graphics2D

Parameters:

tx - the x-translation.

ty - the y-translation.

rotate

public void rotate(double theta)

Applies a rotation (anti-clockwise) about (0, 0).

Specified by:

rotate in class Graphics2D

Parameters:

theta - the rotation angle (in radians).

rotate

public void rotate(double theta,
 double x,
 double y)

Applies a rotation (anti-clockwise) about (x, y).

Specified by:

rotate in class Graphics2D

Parameters:

theta - the rotation angle (in radians).

x - the x-coordinate.

y - the y-coordinate.

scale

public void scale(double sx,
 double sy)

Applies a scale transformation.

Specified by:

scale in class Graphics2D

Parameters:

sx - the x-scaling factor.

sy - the y-scaling factor.

shear

public void shear(double shx,
 double shy)

Applies a shear transformation. This is equivalent to the following call to the transform method:

• transform(AffineTransform.getShearInstance(shx, shy));

Specified by:

shear in class Graphics2D

Parameters:

shx - the x-shear factor.

shy - the y-shear factor.

transform

public void transform(AffineTransform t)

Applies this transform to the existing transform by concatenating it.

Specified by:

transform in class Graphics2D

Parameters:

t - the transform (null not permitted).

getTransform

public AffineTransform getTransform()

Returns a copy of the current transform.

Specified by:

getTransform in class Graphics2D

Returns:

A copy of the current transform (never null).

See Also:

• setTransform(java.awt.geom.AffineTransform)

setTransform

public void setTransform(AffineTransform t)

Sets the transform.

Specified by:

setTransform in class Graphics2D

Parameters:

t - the new transform (null permitted, resets to the identity transform).

See Also:

• getTransform()

hit

public boolean hit(Rectangle rect,
 Shape s,
 boolean onStroke)

Returns true if the rectangle (in device space) intersects with the shape (the interior, if onStroke is false, otherwise the stroked outline of the shape).

Specified by:

hit in class Graphics2D

Parameters:

rect - a rectangle (in device space).

s - the shape.

onStroke - test the stroked outline only?

Returns:

A boolean.

setPaintMode

public void setPaintMode()

Not implemented - the method does nothing.

Specified by:

setPaintMode in class Graphics

setXORMode

public void setXORMode(Color c1)

Not implemented - the method does nothing.

Specified by:

setXORMode in class Graphics

getClipBounds

public Rectangle getClipBounds()

Returns the bounds of the user clipping region.

Specified by:

getClipBounds in class Graphics

Returns:

The clip bounds (possibly null).

See Also:

• getClip()

getClip

public Shape getClip()

Returns the user clipping region. The initial default value is null.

Specified by:

getClip in class Graphics

Returns:

The user clipping region (possibly null).

See Also:

• setClip(java.awt.Shape)

setClip

public void setClip(Shape shape)

Sets the user clipping region.

Specified by:

setClip in class Graphics

Parameters:

shape - the new user clipping region (null permitted).

See Also:

• getClip()

clip

public void clip(Shape s)

Clips to the intersection of the current clipping region and the specified shape. According to the Oracle API specification, this method will accept a null argument, but there is an open bug report (since 2004) that suggests this is wrong:

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6206189 In this implementation, a null argument is not permitted.

Specified by:

clip in class Graphics2D

Parameters:

s - the clip shape (null not permitted).

clipRect

public void clipRect(int x,
 int y,
 int width,
 int height)

Clips to the intersection of the current clipping region and the specified rectangle.

Specified by:

clipRect in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width.

height - the height.

setClip

public void setClip(int x,
 int y,
 int width,
 int height)

Sets the user clipping region to the specified rectangle.

Specified by:

setClip in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width.

height - the height.

See Also:

• getClip()

drawLine

public void drawLine(int x1,
 int y1,
 int x2,
 int y2)

Draws a line from (x1, y1) to (x2, y2) using the current paint and stroke.

Specified by:

drawLine in class Graphics

Parameters:

x1 - the x-coordinate of the start point.

y1 - the y-coordinate of the start point.

x2 - the x-coordinate of the end point.

y2 - the x-coordinate of the end point.

fillRect

public void fillRect(int x,
 int y,
 int width,
 int height)

Fills the specified rectangle with the current paint.

Specified by:

fillRect in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the rectangle width.

height - the rectangle height.

clearRect

public void clearRect(int x,
 int y,
 int width,
 int height)

Clears the specified rectangle by filling it with the current background color. If the background color is null, this method will do nothing.

Specified by:

clearRect in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width.

height - the height.

See Also:

• getBackground()

drawRoundRect

public void drawRoundRect(int x,
 int y,
 int width,
 int height,
 int arcWidth,
 int arcHeight)

Draws a rectangle with rounded corners using the current paint and stroke.

Specified by:

drawRoundRect in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width.

height - the height.

arcWidth - the arc-width.

arcHeight - the arc-height.

See Also:

• fillRoundRect(int, int, int, int, int, int)

fillRoundRect

public void fillRoundRect(int x,
 int y,
 int width,
 int height,
 int arcWidth,
 int arcHeight)

Fills a rectangle with rounded corners using the current paint.

Specified by:

fillRoundRect in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width.

height - the height.

arcWidth - the arc-width.

arcHeight - the arc-height.

See Also:

• drawRoundRect(int, int, int, int, int, int)

drawOval

public void drawOval(int x,
 int y,
 int width,
 int height)

Draws an oval framed by the rectangle (x, y, width, height) using the current paint and stroke.

Specified by:

drawOval in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width.

height - the height.

See Also:

• fillOval(int, int, int, int)

fillOval

public void fillOval(int x,
 int y,
 int width,
 int height)

Fills an oval framed by the rectangle (x, y, width, height).

Specified by:

fillOval in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width.

height - the height.

See Also:

• drawOval(int, int, int, int)

drawArc

public void drawArc(int x,
 int y,
 int width,
 int height,
 int startAngle,
 int arcAngle)

Draws an arc contained within the rectangle (x, y, width, height), starting at startAngle and continuing through arcAngle degrees using the current paint and stroke.

Specified by:

drawArc in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width.

height - the height.

startAngle - the start angle in degrees, 0 = 3 o'clock.

arcAngle - the angle (anticlockwise) in degrees.

See Also:

• fillArc(int, int, int, int, int, int)

fillArc

public void fillArc(int x,
 int y,
 int width,
 int height,
 int startAngle,
 int arcAngle)

Fills an arc contained within the rectangle (x, y, width, height), starting at startAngle and continuing through arcAngle degrees, using the current paint.

Specified by:

fillArc in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width.

height - the height.

startAngle - the start angle in degrees, 0 = 3 o'clock.

arcAngle - the angle (anticlockwise) in degrees.

See Also:

• drawArc(int, int, int, int, int, int)

drawPolyline

public void drawPolyline(int[] xPoints,
 int[] yPoints,
 int nPoints)

Draws the specified multi-segment line using the current paint and stroke.

Specified by:

drawPolyline in class Graphics

Parameters:

xPoints - the x-points.

yPoints - the y-points.

nPoints - the number of points to use for the polyline.

drawPolygon

public void drawPolygon(int[] xPoints,
 int[] yPoints,
 int nPoints)

Draws the specified polygon using the current paint and stroke.

Specified by:

drawPolygon in class Graphics

Parameters:

xPoints - the x-points.

yPoints - the y-points.

nPoints - the number of points to use for the polygon.

See Also:

• fillPolygon(int[], int[], int)

fillPolygon

public void fillPolygon(int[] xPoints,
 int[] yPoints,
 int nPoints)

Fills the specified polygon using the current paint.

Specified by:

fillPolygon in class Graphics

Parameters:

xPoints - the x-points.

yPoints - the y-points.

nPoints - the number of points to use for the polygon.

See Also:

• drawPolygon(int[], int[], int)

createPolygon

public GeneralPath createPolygon(int[] xPoints,
 int[] yPoints,
 int nPoints,
 boolean close)

Creates a polygon from the specified x and y coordinate arrays.

Parameters:

xPoints - the x-points.

yPoints - the y-points.

nPoints - the number of points to use for the polyline.

close - closed?

Returns:

A polygon.

drawImage

public boolean drawImage(Image img,
 int x,
 int y,
 ImageObserver observer)

Draws an image at the location (x, y). Note that the observer is ignored.

Specified by:

drawImage in class Graphics

Parameters:

img - the image.

x - the x-coordinate.

y - the y-coordinate.

observer - ignored.

Returns:

true if the image is drawn.

drawImage

public boolean drawImage(Image img,
 int x,
 int y,
 int width,
 int height,
 ImageObserver observer)

Draws an image at the location (x, y). Note that the observer is ignored.

Specified by:

drawImage in class Graphics

Parameters:

img - the image.

x - the x-coordinate.

y - the y-coordinate.

width - the width of the target rectangle for the image.

height - the height of the target rectangle for the image.

observer - ignored.

Returns:

true if the image is drawn.

drawImage

public boolean drawImage(Image img,
 int x,
 int y,
 Color bgcolor,
 ImageObserver observer)

Draws an image at the location (x, y). Note that the observer is ignored.

Specified by:

drawImage in class Graphics

Parameters:

img - the image (null not permitted).

x - the x-coordinate.

y - the y-coordinate.

bgcolor - the background color (null permitted).

observer - ignored.

Returns:

true if the image is drawn.

drawImage

public boolean drawImage(Image img,
 int x,
 int y,
 int w,
 int h,
 Color bgcolor,
 ImageObserver observer)

Draws an image to the rectangle (x, y, w, h) (scaling it if required), first filling the background with the specified color. Note that the observer is ignored.

Specified by:

drawImage in class Graphics

Parameters:

img - the image.

x - the x-coordinate.

y - the y-coordinate.

w - the width.

h - the height.

bgcolor - the background color (null permitted).

observer - ignored.

Returns:

true if the image is drawn.

drawImage

public boolean drawImage(Image img,
 int dx1,
 int dy1,
 int dx2,
 int dy2,
 int sx1,
 int sy1,
 int sx2,
 int sy2,
 ImageObserver observer)

Draws part of an image (defined by the source rectangle (sx1, sy1, sx2, sy2)) into the destination rectangle (dx1, dy1, dx2, dy2). Note that the observer is ignored in this implementation.

Specified by:

drawImage in class Graphics

Parameters:

img - the image.

dx1 - the x-coordinate for the top left of the destination.

dy1 - the y-coordinate for the top left of the destination.

dx2 - the x-coordinate for the bottom right of the destination.

dy2 - the y-coordinate for the bottom right of the destination.

sx1 - the x-coordinate for the top left of the source.

sy1 - the y-coordinate for the top left of the source.

sx2 - the x-coordinate for the bottom right of the source.

sy2 - the y-coordinate for the bottom right of the source.

Returns:

true if the image is drawn.

drawImage

public boolean drawImage(Image img,
 int dx1,
 int dy1,
 int dx2,
 int dy2,
 int sx1,
 int sy1,
 int sx2,
 int sy2,
 Color bgcolor,
 ImageObserver observer)

Draws part of an image (defined by the source rectangle (sx1, sy1, sx2, sy2)) into the destination rectangle (dx1, dy1, dx2, dy2). The destination rectangle is first cleared by filling it with the specified bgcolor. Note that the observer is ignored.

Specified by:

drawImage in class Graphics

Parameters:

img - the image.

dx1 - the x-coordinate for the top left of the destination.

dy1 - the y-coordinate for the top left of the destination.

dx2 - the x-coordinate for the bottom right of the destination.

dy2 - the y-coordinate for the bottom right of the destination.

sx1 - the x-coordinate for the top left of the source.

sy1 - the y-coordinate for the top left of the source.

sx2 - the x-coordinate for the bottom right of the source.

sy2 - the y-coordinate for the bottom right of the source.

bgcolor - the background color (null permitted).

observer - ignored.

Returns:

true if the image is drawn.

drawRenderedImage

public void drawRenderedImage(RenderedImage img,
 AffineTransform xform)

Draws a rendered image.

Specified by:

drawRenderedImage in class Graphics2D

Parameters:

img - the rendered image.

xform - the transform.

drawRenderableImage

public void drawRenderableImage(RenderableImage img,
 AffineTransform xform)

Draws the renderable image.

Specified by:

drawRenderableImage in class Graphics2D

Parameters:

img - the renderable image.

xform - the transform.

drawImage

public boolean drawImage(Image img,
 AffineTransform xform,
 ImageObserver obs)

Draws an image with the specified transform. Note that the observer is ignored in this implementation.

Specified by:

drawImage in class Graphics2D

Parameters:

img - the image.

xform - the transform.

obs - the image observer (ignored).

Returns:

true if the image is drawn.

drawImage

public void drawImage(BufferedImage img,
 BufferedImageOp op,
 int x,
 int y)

Draws the image resulting from applying the BufferedImageOp to the specified image at the location (x, y).

Specified by:

drawImage in class Graphics2D

Parameters:

img - the image.

op - the operation.

x - the x-coordinate.

y - the y-coordinate.

copyArea

public void copyArea(int x,
 int y,
 int width,
 int height,
 int dx,
 int dy)

Not yet implemented.

Specified by:

copyArea in class Graphics

Parameters:

x - the x-coordinate.

y - the y-coordinate.

width - the width of the area.

height - the height of the area.

dx - the delta x.

dy - the delta y.

dispose

public void dispose()

This method does nothing.

Specified by:

dispose in class Graphics