Examples of ae.java.awt.GraphicsEnvironment

ae.java.awt.GraphicsEnvironment
The GraphicsEnvironment class describes the collection of {@link GraphicsDevice} objects and {@link ae.java.awt.Font} objectsavailable to a Java(tm) application on a particular platform. The resources in this GraphicsEnvironment might be local or on a remote machine. GraphicsDevice objects can be screens, printers or image buffers and are the destination of {@link Graphics2D} drawing methods. Each GraphicsDevicehas a number of {@link GraphicsConfiguration} objects associated withit. These objects specify the different configurations in which the GraphicsDevice can be used. @see GraphicsDevice @see GraphicsConfiguration

     * This method should be called from subclasses which create
     * cached SurfaceData objects that depend on the current
     * properties of the display.
     */
    protected void activateDisplayListener() {
        GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
        // We could have a HeadlessGE at this point, so double-check before
        // assuming anything.
        // Also, no point in listening to display change events if
        // the image is never going to be accelerated.

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    protected static int FONTCACHESIZE = 256;
    protected static int FONTCACHEMASK = PlatformFont.FONTCACHESIZE - 1;
    protected static String osVersion;


    public PlatformFont(String name, int style){
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        if (ge instanceof FontSupport) {
            fontConfig = ((FontSupport)ge).getFontConfiguration();
        }
        if (fontConfig == null) {
            return;

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     * this <code>BufferedImage</code>.
     * @return a <code>Graphics2D</code>, used for drawing into this
     *          image.
     */
    public Graphics2D createGraphics() {
        GraphicsEnvironment env =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
        return env.createGraphics(this);
    }

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        // REMIND: this look a bit heavyweight, but should be ok
        // because strike disposal is a relatively infrequent operation,
        // more worrisome is the necessity of getting a GC here.
        RenderQueue rq = null;
        GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
        if (!ge.isHeadless()) {
            GraphicsConfiguration gc =
                ge.getDefaultScreenDevice().getDefaultConfiguration();
            if (gc instanceof AccelGraphicsConfig) {
                AccelGraphicsConfig agc = (AccelGraphicsConfig)gc;
                BufferedContext bc = agc.getContext();
                if (bc != null) {
                    rq = bc.getRenderQueue();

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        }
    }


    static void initSGEnv() {
        if (sgEnv == null) {
            GraphicsEnvironment ge =
                GraphicsEnvironment.getLocalGraphicsEnvironment();
            if (ge instanceof HeadlessGraphicsEnvironment) {
                HeadlessGraphicsEnvironment hgEnv =
                    (HeadlessGraphicsEnvironment)ge;
                sgEnv = (SunGraphicsEnvironment)

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        return createGraphics();
    }


    public Graphics2D createGraphics() {
        if (c == null) {
            GraphicsEnvironment env =
                GraphicsEnvironment.getLocalGraphicsEnvironment();
            return env.createGraphics(this);
        }


        Color bg = c.getBackground();
        if (bg == null) {
            bg = SystemColor.window;

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    protected VolatileSurfaceManager(SunVolatileImage vImg, Object context) {
        this.vImg = vImg;
        this.context = context;


        GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
        // We could have a HeadlessGE at this point, so double-check before
        // assuming anything.
        if (ge instanceof SunGraphicsEnvironment) {
            ((SunGraphicsEnvironment)ge).addDisplayChangedListener(this);

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Related Classes of ae.java.awt.GraphicsEnvironment

ae.java.awt.image.BufferedImage

ae.sun.awt.image.OffScreenImage

ae.sun.awt.image.VolatileSurfaceManager

ae.sun.awt.PlatformFont

ae.sun.font.FontManager

ae.sun.font.StrikeCache

ae.sun.java2d.HeadlessGraphicsEnvironment

ae.sun.java2d.SurfaceDataProxy

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