org.apache.xmlgraphics.ps
Class PSState

java.lang.Object
  org.apache.xmlgraphics.ps.PSState

All Implemented Interfaces:

Serializable

public class PSState
extends Object
implements Serializable

This class holds the current state of the PostScript interpreter.

Version:

$Id: PSState.java 1681108 2015-05-22 13:26:12Z ssteiner $

See Also:

Serialized Form

Field Summary

static String	DEFAULT_DASH Default for setdash
static Color	DEFAULT_RGB_COLOR Default color in PostScript

Constructor Summary

PSState()
Default constructor

PSState(PSState org, boolean copyTransforms)
Copy constructor

Method Summary

boolean	checkTransform(AffineTransform tf) Check the current transform.
void	concatMatrix(AffineTransform transform) Concats the given transformation matrix with the current one.
AffineTransform	getTransform() Returns the transform.
void	reestablish(PSGenerator gen) Reestablishes the graphics state represented by this instance by issueing the necessary commands.
boolean	useColor(Color value) Establishes the specified color (RGB).
boolean	useDash(String pattern) Establishes the specified dash.
boolean	useFont(String name, float size) Establishes the specified font and size.
boolean	useLineCap(int value) Establishes the specified line cap.
boolean	useLineJoin(int value) Establishes the specified line join.
boolean	useLineWidth(double value) Establishes the specified line width.
boolean	useMiterLimit(float value) Establishes the specified miter limit.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_DASH

public static final String DEFAULT_DASH

Default for setdash

See Also:

Constant Field Values

DEFAULT_RGB_COLOR

public static final Color DEFAULT_RGB_COLOR

Default color in PostScript

Constructor Detail

PSState

public PSState()

Default constructor

PSState

public PSState(PSState org,
               boolean copyTransforms)

Copy constructor

Parameters:

org - the original to copy from

copyTransforms - true if the list of matrix concats should be cloned, too

Method Detail

getTransform

public AffineTransform getTransform()

Returns the transform.

Returns:

the current transformation matrix

checkTransform

public boolean checkTransform(AffineTransform tf)

Check the current transform. The transform for the current state is the combination of all transforms in the current state. The parameter is compared against this current transform.

Parameters:

tf - the transform the check against

Returns:

true if the new transform is different then the current transform

concatMatrix

public void concatMatrix(AffineTransform transform)

Concats the given transformation matrix with the current one.

Parameters:

transform - The new transformation matrix

useLineCap

public boolean useLineCap(int value)

Establishes the specified line cap.

Parameters:

value - line cap (0, 1 or 2) as defined by the setlinecap command

Returns:

true if the line cap changed compared to the previous setting

useLineJoin

public boolean useLineJoin(int value)

Establishes the specified line join.

Parameters:

value - line join (0, 1 or 2) as defined by the setlinejoin command

Returns:

true if the line join changed compared to the previous setting

useMiterLimit

public boolean useMiterLimit(float value)

Establishes the specified miter limit.

Parameters:

value - the miter limit as defined by the setmiterlimit command

Returns:

true if the miter limit changed compared to the previous setting

useLineWidth

public boolean useLineWidth(double value)

Establishes the specified line width.

Parameters:

value - line width as defined by the setlinewidth command

Returns:

true if the line width changed compared to the previous setting

useDash

public boolean useDash(String pattern)

Establishes the specified dash.

Parameters:

pattern - dash pattern as defined by the setdash command

Returns:

true if the dash pattern changed compared to the previous setting

useColor

public boolean useColor(Color value)

Establishes the specified color (RGB).

Parameters:

value - color as defined by the setrgbcolor command

Returns:

true if the color changed compared to the previous setting

useFont

public boolean useFont(String name,
                       float size)

Establishes the specified font and size.

Parameters:

name - name of the font for the "F" command (see FOP Std Proc Set)

size - size of the font

Returns:

true if the font changed compared to the previous setting

reestablish

public void reestablish(PSGenerator gen)
                 throws IOException

Reestablishes the graphics state represented by this instance by issueing the necessary commands.

Parameters:

gen - The generator to use for output

Throws:

IOException - In case of an I/O problem