com.eteks.java2d
Class PJAGraphicsEnvironment

java.lang.Object
  |
  +--java.awt.GraphicsEnvironment
        |
        +--sun.java2d.SunGraphicsEnvironment
              |
              +--com.eteks.java2d.PJAGraphicsEnvironment

public class PJAGraphicsEnvironment

extends sun.java2d.SunGraphicsEnvironment

Pure Java AWT GraphicsEnvironment implementation. This implementation enables to get an environment even when no Display is available.
java.awt.graphicsenv system property have to be set to com.eteks.java2d.PJAGraphicsEnvironment to allow the change of java.awt.GraphicsEnvironment default implementation. java.awt.fonts system property must be set to the path where True Type fonts files will be loaded from (this property must be defined to avoid calling the getFontPath () native method of the class NativeFontWrapper which needs a X11 Display in Motif implementation).
This path can be equal to :

• /usr/openwin/lib/X11/fonts/Type1:/usr/openwin/lib/X11/fonts/TrueType directories on Solaris
• WinDir\Font directory on Windows
• ($JAVAHOME)/lib/fonts
• Any directory list containing True Type fonts

Java2D can work with PJA only with JVM version >= 1.2. When GraphicsEnvironment.getLocalGraphicsEnvironment () fails because PJAGraphicsEnvironment class can't be loaded or java.awt.graphicsenv system property can't be changed, java.awt.Font can't be instantiated without a Display since this class requires an instance of java.awt.GraphicsEnvironment in Java 1.2. In that case, it forbids to use Graphics2D methods in a program because Graphics2D needs a default font (see PJADemo.java source for a way to change of .pjaf font).

Since:

PJA2.0

Version:

2.1

Author:

Emmanuel Puybaret

See Also:

PJAToolkit, PJAGraphicsManager

Inner classes inherited from class sun.java2d.SunGraphicsEnvironment

sun.java2d.SunGraphicsEnvironment.T1Filter, sun.java2d.SunGraphicsEnvironment.T2KFilter, sun.java2d.SunGraphicsEnvironment.TTFilter

Fields inherited from class sun.java2d.SunGraphicsEnvironment

fontPath, fprops, loadNativeFonts, osVersion, registeredFonts

Constructor Summary

PJAGraphicsEnvironment()

Method Summary

java.awt.Graphics2D	createGraphics(java.awt.image.BufferedImage image) Returns a Graphics2D instance or throws an AWTError exception.
protected int	getNumScreens() Returns the number of screens.
protected java.awt.GraphicsDevice	makeScreenDevice(int screenNum)

Methods inherited from class sun.java2d.SunGraphicsEnvironment

createFont, getAllFonts, getAvailableFontFamilyNames, getAvailableFontFamilyNames, getBestFontFor, getDefaultScreenDevice, getFileNameFromPlatformName, getFontProperties, getFontPropertyFD, getOsVersion, getPrinterJob, getPropString, getScreenDevices, initCompositeFonts, initializeProps, isLogicalFont, loadFonts, mapFamilyName, mapFamilyNameAll, parseFamilyNameProperty, platformReady, registerFontFile, registerFontPath, registerNative, registerNativeFonts, styleStr

Methods inherited from class java.awt.GraphicsEnvironment

getLocalGraphicsEnvironment

Methods inherited from class java.lang.Object

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

Constructor Detail

PJAGraphicsEnvironment

public PJAGraphicsEnvironment()

Method Detail

getNumScreens

protected int getNumScreens()

Returns the number of screens.

Overrides:

getNumScreens in class sun.java2d.SunGraphicsEnvironment

Returns:

1

makeScreenDevice

protected java.awt.GraphicsDevice makeScreenDevice(int screenNum)

Overrides:

makeScreenDevice in class sun.java2d.SunGraphicsEnvironment

createGraphics

public java.awt.Graphics2D createGraphics(java.awt.image.BufferedImage image)

Returns a Graphics2D instance or throws an AWTError exception.

Overrides:

createGraphics in class sun.java2d.SunGraphicsEnvironment