info.informatica.doc.style.css.j2d
Class Java2DStyleDatabase

java.lang.Object
  info.informatica.doc.style.css.AbstractStyleDatabase
      info.informatica.doc.style.css.j2d.Java2DStyleDatabase

All Implemented Interfaces:

StyleDatabase

Direct Known Subclasses:

HeadlessStyleDatabase

public class Java2DStyleDatabase
extends AbstractStyleDatabase

CSS style database for use with Java2D objects.

Author:

Carlos Amengual (amengual at informatica.info)

Field Summary

Fields inherited from class info.informatica.doc.style.css.AbstractStyleDatabase

DEFAULT_GENERIC_FONT_FAMILY, DEFAULT_INITIAL_COLOR

Constructor Summary

Java2DStyleDatabase()

Method Summary

protected static float	clipColorValue(float color)
protected static int	clipColorValue(int color)
protected float	cmToPixels(float cm) Converts from centimeters to pixels.
protected float	deviceResolutionFactor() This method is used to normalize sizes to a 1024x768 screen.
static Color	getAWTColor(org.w3c.dom.css.CSSPrimitiveValue cssColor) Gets the AWT color as obtained from the given CSS primitive value.
String	getDefaultGenericFontFamily(String genericFamily) Gets the name of the default font used when a generic font family (serif, sans-serif, monospace, cursive, fantasy) is specified.
float	getDocumentHeight() Gets the height of the document (or screen viewport) in the natural unit for the device.
float	getDocumentWidth() Gets the width of the document (or screen viewport) in the natural unit for the device.
int	getFontSizeFromIdentifier(String familyName, String fontSizeIdentifier) Gets the font size from the given size identifier (small, medium, etc.), expressed in typographic points.
protected GraphicsConfiguration	getGraphicsConfiguration() Gets the GraphicsConfiguration for this style database.
short	getNaturalUnit() Gets the identifier of the device's natural unit.
float	getWidthSize(String widthIdentifier) Gets the size corresponging to the given identifier (thin, thick, medium).
boolean	isFontFamilyAvailable(String fontFamily) Checks if a font family is available.
protected float	pxTocm(int px) Converts from pixels to centimeters.
void	setGraphicsConfiguration(GraphicsConfiguration configuration)
void	setNaturalUnit(short naturalUnit) Sets the natural unit for this device.

Methods inherited from class info.informatica.doc.style.css.AbstractStyleDatabase

floatValueConversion, floatValueConversion, getDefaultGenericFontFamily, getExSizeInPt, getInitialColor, getScrollbarWidth, setInitialColor

Methods inherited from class java.lang.Object

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

Constructor Detail

Java2DStyleDatabase

public Java2DStyleDatabase()

Method Detail

getDefaultGenericFontFamily

public String getDefaultGenericFontFamily(String genericFamily)

Gets the name of the default font used when a generic font family (serif, sans-serif, monospace, cursive, fantasy) is specified.

This class attempts to map the generic name to a "logical font" name.

As, in Java, logical font names are internally mapped to physical fonts by the Java runtime environment, the name of the corresponding "logical font" is returned, and no further mapping is attempted.

Parameters:

genericFamily - the name of the logical font.

Returns:

the name of the associated logical font, or null if none.

isFontFamilyAvailable

public boolean isFontFamilyAvailable(String fontFamily)

Description copied from interface: StyleDatabase

Checks if a font family is available.

Parameters:

fontFamily - the font family name.

Returns:

true if the font is available, false otherwise.

getGraphicsConfiguration

protected GraphicsConfiguration getGraphicsConfiguration()

Gets the GraphicsConfiguration for this style database.

Returns:

the GraphicsConfiguration object previously set, of the default one if none was set.

Throws:

UnsupportedOperationException - if no appropriate GraphicsConfiguration could be found.

setGraphicsConfiguration

public void setGraphicsConfiguration(GraphicsConfiguration configuration)

cmToPixels

protected float cmToPixels(float cm)

Description copied from class: AbstractStyleDatabase

Converts from centimeters to pixels.

Specified by:

cmToPixels in class AbstractStyleDatabase

Parameters:

cm - the value, in centimeters, to be converted.

Returns:

the value, expressed in pixels.

pxTocm

protected float pxTocm(int px)

Description copied from class: AbstractStyleDatabase

Converts from pixels to centimeters.

Specified by:

pxTocm in class AbstractStyleDatabase

Parameters:

px - the value, in pixels, to be converted.

Returns:

the value, expressed in centimeters.

deviceResolutionFactor

protected float deviceResolutionFactor()

This method is used to normalize sizes to a 1024x768 screen.

Returns:

the factor by which screensize-dependent quantities can be multiplied to be normalized.

getFontSizeFromIdentifier

public int getFontSizeFromIdentifier(String familyName,
                                     String fontSizeIdentifier)
                              throws DOMException

Description copied from interface: StyleDatabase

Gets the font size from the given size identifier (small, medium, etc.), expressed in typographic points.

Parameters:

familyName - the font family name.

fontSizeIdentifier - the font size identifier.

Returns:

the font size.

Throws:

DOMException

getWidthSize

public float getWidthSize(String widthIdentifier)
                   throws DOMException

Description copied from interface: StyleDatabase

Gets the size corresponging to the given identifier (thin, thick, medium).

Parameters:

widthIdentifier - the CSS width identifier.

Returns:

the size.

Throws:

DOMException

getNaturalUnit

public short getNaturalUnit()

Description copied from interface: StyleDatabase

Gets the identifier of the device's natural unit.

Returns:

the unit identifier as in CSSPrimitiveValue.

setNaturalUnit

public void setNaturalUnit(short naturalUnit)

Sets the natural unit for this device.

Parameters:

naturalUnit - the natural unit.

See Also:

CSSPrimitiveValue

getDocumentHeight

public float getDocumentHeight()

Description copied from interface: StyleDatabase

Gets the height of the document (or screen viewport) in the natural unit for the device.

Returns:

the height of the document.

getDocumentWidth

public float getDocumentWidth()

Description copied from interface: StyleDatabase

Gets the width of the document (or screen viewport) in the natural unit for the device.

Returns:

the width of the document.

getAWTColor

public static Color getAWTColor(org.w3c.dom.css.CSSPrimitiveValue cssColor)

Gets the AWT color as obtained from the given CSS primitive value.

Parameters:

cssColor - the primitive color value, which can contain an RGB color, a number or an identifier.

Returns:

the AWT color object, or null if the color was specified as an unknown identifier or as 'transparent'.

clipColorValue

protected static int clipColorValue(int color)

clipColorValue

protected static float clipColorValue(float color)