File	Doc	Category	Size	Date	Package
GraphicsEnvironment.java	API Doc	Android 1.5 API	7666	Wed May 06 22:41:54 BST 2009	java.awt

GraphicsEnvironment

• java.lang.Object

Fields Summary

Constructors Summary
protected GraphicsEnvironment() Constructor could not be used directly and should be obtained in extended classes.

Methods Summary
public abstract java.awt.Graphics2D	createGraphics(java.awt.image.BufferedImage bufferedImage) Creates the Graphics2D object for rendering to the specified BufferedImage. param bufferedImage the BufferedImage object. return the Graphics2D object which allows to render to the specified BufferedImage.
public abstract java.awt.Font[]	getAllFonts() Gets the array of all available fonts instances in this GraphicsEnviroments. return the array of all available fonts instances in this GraphicsEnviroments.
public abstract java.lang.String[]	getAvailableFontFamilyNames() Gets the array of all available font family names. return the array of all available font family names.
public abstract java.lang.String[]	getAvailableFontFamilyNames(java.util.Locale locale) Gets the array of all available font family names for the specified locale. param locale the Locale object which represents geographical region. The default locale is used if locale is null. return the array of available font family names for the specified locale.
public java.awt.Point	getCenterPoint() Gets the Point which should defines the center of system window. return the Point where the system window should be centered. throws HeadlessException if isHeadless() method returns true. Rectangle mwb = getMaximumWindowBounds(); return new Point(mwb.width >> 1, mwb.height >> 1);
public abstract java.awt.GraphicsDevice	getDefaultScreenDevice() Gets the default screen device as GraphicDevice object. return the GraphicDevice object which represents default screen device. throws HeadlessException if isHeadless() returns true.
public static java.awt.GraphicsEnvironment	getLocalGraphicsEnvironment() Gets the local GraphicsEnvironment. return the local GraphicsEnvironment. synchronized (ContextStorage.getContextLock()) { if (ContextStorage.getGraphicsEnvironment() == null) { if (isHeadless()) { ContextStorage.setGraphicsEnvironment(new HeadlessGraphicsEnvironment()); } else { CommonGraphics2DFactory g2df = (CommonGraphics2DFactory)Toolkit .getDefaultToolkit().getGraphicsFactory(); ContextStorage.setGraphicsEnvironment(g2df .createGraphicsEnvironment(ContextStorage.getWindowFactory())); } } return ContextStorage.getGraphicsEnvironment(); }
public java.awt.Rectangle	getMaximumWindowBounds() Gets the maximum bounds of system centered windows. return the maximum bounds of system centered windows. throws HeadlessException if isHeadless() method returns true. return getDefaultScreenDevice().getDefaultConfiguration().getBounds();
public abstract java.awt.GraphicsDevice[]	getScreenDevices() Gets an array of all available screen devices. return the array of GraphicsDevice objects which represents all available screen devices. throws HeadlessException if isHeadless() returns true.
public static boolean	isHeadless() Checks whether or not a display, keyboard, and mouse are supported in this environment. return true, if a HeadlessException is thrown from areas of the Toolkit and GraphicsEnvironment that are dependent on a display, keyboard, or mouse, false otherwise. return "true".equals(System.getProperty("java.awt.headless"));
public boolean	isHeadlessInstance() Returns whether or not a display, keyboard, and mouse are supported in this graphics environment. return true, if HeadlessException will be thrown from areas of the graphics environment that are dependent on a display, keyboard, or mouse, false otherwise. return false;
public void	preferLocaleFonts() Indicates that the primary font should be used. Primary font is specified by initial system locale or default encoding). // Note: API specification says following: // "The actual change in font rendering behavior resulting // from a call to this method is implementation dependent; // it may have no effect at all." So, doing nothing is an // acceptable behavior for this method. // For now FontManager uses 1.4 font.properties scheme for font mapping, // so // this method doesn't make any sense. The implementation of this method // which will influence font mapping is postponed until // 1.5 mapping scheme not implemented. // todo - Implement non-default behavior with 1.5 font mapping scheme
public void	preferProportionalFonts() Indicates that a proportional preference of the font should be used. // Note: API specification says following: // "The actual change in font rendering behavior resulting // from a call to this method is implementation dependent; // it may have no effect at all." So, doing nothing is an // acceptable behavior for this method. // For now FontManager uses 1.4 font.properties scheme for font mapping, // so // this method doesn't make any sense. The implementation of this method // which will influence font mapping is postponed until // 1.5 mapping scheme not implemented. // todo - Implement non-default behavior with 1.5 font mapping scheme