ch.randelshofer.awt.graphics
Class AbstractPipe

java.lang.Object
  java.awt.Graphics
      java.awt.Graphics2D
          ch.randelshofer.awt.graphics.Pipe
              ch.randelshofer.awt.graphics.AbstractPipe

Direct Known Subclasses:

ConcurrentOpaquePipe, ConcurrentTranslucentPipe, OpaquePaintPipe, OpaquePipe, TranslucentPipe

public abstract class AbstractPipe
extends Pipe

AbstractPipe is used as an abstract super class for Pipes with basic capabilities.

Version:

1.0 April 5, 2006 Created.

Author:

Werner Randelshofer.

Field Summary

protected int	background The background color used for clearRect.
protected static double	flatness Flatness is used for flattening general paths.
protected java.awt.image.BufferedImage	mis The buffered image which holds the pixel data.
protected int[]	pixels The pixel data array.
protected java.awt.Shape	previousClip This is used to quickly test, if the same clip is set again.
protected java.awt.geom.AffineTransform	previousTransform This is used to quickly test, if the same Transform is set again.
protected java.awt.image.WritableRaster	ras The raster holding the pixels of the image data.
protected int	tx Translation on X- and Y-axis.
protected int	ty Translation on X- and Y-axis.
protected float	u1 LiangBarsky clip test variables.
protected float	u2 LiangBarsky clip test variables.

Fields inherited from class ch.randelshofer.awt.graphics.Pipe

cx1, cx2, cy1, cy2, gh, gw

Constructor Summary

AbstractPipe(java.awt.image.BufferedImage image)
Creates a new instance.

Method Summary

protected static void	arrayfill(int[] array, int from, int to, int value) A faster array fill implementation than the one found in java.util.Arrays.
void	clearRect(int x, int y, int width, int height)
void	clipRect(int x, int y, int width, int height)
protected boolean	clipTest(float p, float q) LiangBarsky clip test.
protected boolean	clipTest(int p, float q) LiangBarsky clip test.
void	flush() Flushes all pending graphics operations of the rendering pipe into its underlying image.
java.awt.Color	getBackground()
void	setBackground(java.awt.Color c)
void	setClip(int x, int y, int width, int height)
void	setClip(java.awt.Shape clip)
void	setComposite(java.awt.Composite comp)
void	setTransform(java.awt.geom.AffineTransform Tx)
void	transform(java.awt.geom.AffineTransform Tx)
void	translate(double tx, double ty)
void	translate(int tx, int ty)

Methods inherited from class ch.randelshofer.awt.graphics.Pipe

addRenderingHints, clip, copyArea, create, dispose, draw, drawArc, drawGlyphVector, drawImage, drawImage, drawImage, drawImage, drawImage, drawImage, drawImage, drawImage, drawOval, drawPolygon, drawPolyline, drawRenderableImage, drawRenderedImage, drawRoundRect, drawString, drawString, drawString, drawString, fill, fillArc, fillOval, fillPolygon, fillRect, fillRoundRect, getClip, getClipBounds, getColor, getComposite, getDeviceConfiguration, getFont, getFontMetrics, getFontRenderContext, getPaint, getRenderingHint, getRenderingHints, getStroke, getTransform, hit, rotate, rotate, scale, setColor, setFont, setPaint, setPaintMode, setRenderingHint, setRenderingHints, setStroke, setXORMode, shear, toString

Methods inherited from class java.awt.Graphics2D

draw3DRect, fill3DRect

Methods inherited from class java.awt.Graphics

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

Methods inherited from class java.lang.Object

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

Field Detail

tx

protected int tx

Translation on X- and Y-axis.

ty

protected int ty

Translation on X- and Y-axis.

previousClip

protected java.awt.Shape previousClip

This is used to quickly test, if the same clip is set again.

previousTransform

protected java.awt.geom.AffineTransform previousTransform

This is used to quickly test, if the same Transform is set again.

mis

protected java.awt.image.BufferedImage mis

The buffered image which holds the pixel data.

ras

protected java.awt.image.WritableRaster ras

The raster holding the pixels of the image data.

pixels

protected int[] pixels

The pixel data array.

background

protected int background

The background color used for clearRect.

flatness

protected static final double flatness

Flatness is used for flattening general paths.

See Also:

Constant Field Values

u1

protected float u1

LiangBarsky clip test variables.

u2

protected float u2

LiangBarsky clip test variables.

Constructor Detail

AbstractPipe

public AbstractPipe(java.awt.image.BufferedImage image)

Creates a new instance.

Method Detail

flush

public void flush()

Description copied from class: Pipe

Flushes all pending graphics operations of the rendering pipe into its underlying image.

Specified by:

flush in class Pipe

clearRect

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

Specified by:

clearRect in class java.awt.Graphics

clipRect

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

Overrides:

clipRect in class Pipe

setClip

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

Overrides:

setClip in class Pipe

setClip

public void setClip(java.awt.Shape clip)

Overrides:

setClip in class Pipe

clipTest

protected final boolean clipTest(int p,
                                 float q)

LiangBarsky clip test. u1 and u2 are var parameters of this function. u1 must be set to 0, and u2 must be set to 1 before doing the first clip test.

clipTest

protected final boolean clipTest(float p,
                                 float q)

LiangBarsky clip test. u1 and u2 are var parameters of this function. u1 must be set to 0, and u2 must be set to 1 before doing the first clip test.

setBackground

public void setBackground(java.awt.Color c)

Overrides:

setBackground in class Pipe

getBackground

public java.awt.Color getBackground()

Overrides:

getBackground in class Pipe

setComposite

public void setComposite(java.awt.Composite comp)

Overrides:

setComposite in class Pipe

transform

public void transform(java.awt.geom.AffineTransform Tx)

Overrides:

transform in class Pipe

translate

public void translate(double tx,
                      double ty)

Overrides:

translate in class Pipe

translate

public void translate(int tx,
                      int ty)

Specified by:

translate in class java.awt.Graphics2D

setTransform

public void setTransform(java.awt.geom.AffineTransform Tx)

Overrides:

setTransform in class Pipe

arrayfill

protected static final void arrayfill(int[] array,
                                      int from,
                                      int to,
                                      int value)

A faster array fill implementation than the one found in java.util.Arrays.