Examples of VolatileImage

ae.java.awt.image.VolatileImage
e creation VolatileImage vImg = createVolatileImage(w, h); // rendering to the image void renderOffscreen() { do { if (vImg.validate(getGraphicsConfiguration()) == VolatileImage.IMAGE_INCOMPATIBLE) { // old vImg doesn't work with new GraphicsConfig; re-create it vImg = createVolatileImage(w, h); } Graphics2D g = vImg.createGraphics(); // // miscellaneous rendering commands... // g.dispose(); } while (vImg.contentsLost()); } // copying from the image (here, gScreen is the Graphics // object for the onscreen window) do { int returnCode = vImg.validate(getGraphicsConfiguration()); if (returnCode == VolatileImage.IMAGE_RESTORED) { // Contents need to be restored renderOffscreen(); // restore contents } else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) { // old vImg doesn't work with new GraphicsConfig; re-create it vImg = createVolatileImage(w, h); renderOffscreen(); } gScreen.drawImage(vImg, 0, 0, this); } while (vImg.contentsLost());
Note that this class subclasses from the {@link Image} class, whichincludes methods that take an {@link ImageObserver} parameter forasynchronous notifications as information is received from a potential {@link ImageProducer}. Since this VolatileImage is not loaded from an asynchronous source, the various methods that take an ImageObserver parameter will behave as if the data has already been obtained from the ImageProducer. Specifically, this means that the return values from such methods will never indicate that the information is not yet available and the ImageObserver used in such methods will never need to be recorded for an asynchronous callback notification. @since 1.4
com.google.code.appengine.awt.image.VolatileImage
Volatile image implementation
java.awt.image.VolatileImage
e creation VolatileImage vImg = createVolatileImage(w, h); // rendering to the image void renderOffscreen() { do { if (vImg.validate(getGraphicsConfiguration()) == VolatileImage.IMAGE_INCOMPATIBLE) { // old vImg doesn't work with new GraphicsConfig; re-create it vImg = createVolatileImage(w, h); } Graphics2D g = vImg.createGraphics(); // // miscellaneous rendering commands... // g.dispose(); } while (vImg.contentsLost()); } // copying from the image (here, gScreen is the Graphics // object for the onscreen window) do { int returnCode = vImg.validate(getGraphicsConfiguration()); if (returnCode == VolatileImage.IMAGE_RESTORED) { // Contents need to be restored renderOffscreen(); // restore contents } else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) { // old vImg doesn't work with new GraphicsConfig; re-create it vImg = createVolatileImage(w, h); renderOffscreen(); } gScreen.drawImage(vImg, 0, 0, this); } while (vImg.contentsLost());
Note that this class subclasses from the {@link Image} class, whichincludes methods that take an {@link ImageObserver} parameter forasynchronous notifications as information is received from a potential {@link ImageProducer}. Since this VolatileImage is not loaded from an asynchronous source, the various methods that take an ImageObserver parameter will behave as if the data has already been obtained from the ImageProducer. Specifically, this means that the return values from such methods will never indicate that the information is not yet available and the ImageObserver used in such methods will never need to be recorded for an asynchronous callback notification. @since 1.4

Examples of ae.java.awt.image.VolatileImage

     * model is compatible with this <code>GraphicsConfiguration</code>.
     * @see Component#createVolatileImage(int, int)
     * @since 1.4
     */
    public VolatileImage createCompatibleVolatileImage(int width, int height) {
        VolatileImage vi = null;
        try {
            vi = createCompatibleVolatileImage(width, height,
                                               null, Transparency.OPAQUE);
        } catch (AWTException e) {
            // shouldn't happen: we're passing in null caps

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Examples of com.google.code.appengine.awt.image.VolatileImage

    ***************************************************************************/




    public VolatileImage createCompatibleVolatileImage(int width, int height,
            ImageCapabilities caps) throws AWTException {
        VolatileImage res = createCompatibleVolatileImage(width, height);
        if (!res.getCapabilities().equals(caps)) {
            // awt.14A=Can not create VolatileImage with specified capabilities
            throw new AWTException(Messages.getString("awt.14A")); //$NON-NLS-1$
        }
        return res;
    }

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Examples of com.google.code.appengine.awt.image.VolatileImage

        return res;
    }


    public VolatileImage createCompatibleVolatileImage(int width, int height,
            ImageCapabilities caps, int transparency) throws AWTException {
        VolatileImage res = createCompatibleVolatileImage(width, height, transparency);
        if (!res.getCapabilities().equals(caps)) {
            // awt.14A=Can not create VolatileImage with specified capabilities
            throw new AWTException(Messages.getString("awt.14A")); //$NON-NLS-1$
        }
        return res;
    }

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Examples of java.awt.image.VolatileImage

            }
            GraphicsConfiguration gc = getGraphicsConfiguration();
            if (gc == null) {
                return null;
            }
            VolatileImage image = gc.createCompatibleVolatileImage(width, height, caps);
            fillImageBackground(image, width, height);
            return image;
        } finally {
            toolkit.unlockAWT();
        }

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Examples of java.awt.image.VolatileImage

            }
            GraphicsConfiguration gc = getGraphicsConfiguration();
            if (gc == null) {
                return null;
            }
            VolatileImage image = gc.createCompatibleVolatileImage(width, height);
            fillImageBackground(image, width, height);
            return image;
        } finally {
            toolkit.unlockAWT();
        }

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Examples of java.awt.image.VolatileImage

    ***************************************************************************/




    public VolatileImage createCompatibleVolatileImage(int width, int height,
            ImageCapabilities caps) throws AWTException {
        VolatileImage res = createCompatibleVolatileImage(width, height);
        if (!res.getCapabilities().equals(caps)) {
            throw new AWTException("Can not create VolatileImage with specified capabilities");
        }
        return res;
    }

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Examples of java.awt.image.VolatileImage

        return res;
    }


    public VolatileImage createCompatibleVolatileImage(int width, int height,
            ImageCapabilities caps, int transparency) throws AWTException {
        VolatileImage res = createCompatibleVolatileImage(width, height, transparency);
        if (!res.getCapabilities().equals(caps)) {
            throw new AWTException("Can not create VolatileImage with specified capabilities");
        }
        return res;
    }

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Examples of java.awt.image.VolatileImage

            }
            GraphicsConfiguration gc = getGraphicsConfiguration();
            if (gc == null) {
                return null;
            }
            VolatileImage image = gc.createCompatibleVolatileImage(width, height, caps);
            fillImageBackground(image, width, height);
            return image;
        } finally {
            toolkit.unlockAWT();
        }

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Examples of java.awt.image.VolatileImage

            }
            GraphicsConfiguration gc = getGraphicsConfiguration();
            if (gc == null) {
                return null;
            }
            VolatileImage image = gc.createCompatibleVolatileImage(width, height);
            fillImageBackground(image, width, height);
            return image;
        } finally {
            toolkit.unlockAWT();
        }

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Examples of java.awt.image.VolatileImage

            }
            GraphicsConfiguration gc = getGraphicsConfiguration();
            if (gc == null) {
                return null;
            }
            VolatileImage image = gc.createCompatibleVolatileImage(width, height, caps);
            fillImageBackground(image, width, height);
            return image;
        } finally {
            toolkit.unlockAWT();
        }

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