Java Doc for QtImageDecoder.java in  » 6.0-JDK-Modules » j2me » sun » awt » qt » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » sun.awt.qt   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    sun.awt.image.ImageDecoder       sun.awt.qt.QtImageDecoder QtImageDecoder class QtImageDecoder extends ImageDecoder (Code) QtImageDecoder uses QT's native decoders to decode image formats (GIF, JPEG, PNG). An instance is instantiated by QtImageDecoderFactory. This class is optimized to load images faster by utilizing the QT's native decoders. If the applications performs image manipulation then the performance is no better than the java decoders. We acheive high performance by allowing the QT's native decoders to create a QImage, which we then pass it to QtImageRepresentation. We eliminate decoding in java as well as calling set*Pixels(), which gives us a significant improvemement in the image load time. Field Summary protected  ColorModel colorModel      protected  int height      protected  String imgFormat      Image format. protected  int width      Constructor Summary   QtImageDecoder(InputStreamImageSource src, InputStream is, String imgFormat)      Method Summary protected  byte[] getEncodedImage()      protected  int imageComplete(int imageHandle, int status, boolean done)      protected  int imageComplete(int status, boolean done)      public  void produceImage()      Produce an image from the stream. public  boolean sendPixels(int pixels, int y)      public  boolean sendPixels(byte pixels, int y)      protected  int setPixels(int x, int y, int w, int h, ColorModel model, byte pix, int off, int scansize)      protected  int setPixels(int x, int y, int w, int h, ColorModel model, int pix, int off, int scansize)      Field Detail colorModel protected ColorModel colorModel(Code) The color model used by the image height protected int height(Code) Height of the image imgFormat protected String imgFormat(Code) Image format. This is one of the constants defined in sun.awt.image.ImageDecoderFactory width protected int width(Code) Width of the image Constructor Detail QtImageDecoder QtImageDecoder(InputStreamImageSource src, InputStream is, String imgFormat)(Code) Method Detail getEncodedImage protected byte[] getEncodedImage() throws IOException(Code) Creates a byte array of the encoded/compressed image stream imageComplete protected int imageComplete(int imageHandle, int status, boolean done)(Code) imageComplete protected int imageComplete(int status, boolean done)(Code) produceImage public void produceImage() throws IOException, ImageFormatException(Code) Produce an image from the stream. sendPixels public boolean sendPixels(int pixels, int y)(Code) sendPixels public boolean sendPixels(byte pixels, int y)(Code) setPixels protected int setPixels(int x, int y, int w, int h, ColorModel model, byte pix, int off, int scansize)(Code) setPixels protected int setPixels(int x, int y, int w, int h, ColorModel model, int pix, int off, int scansize)(Code) Fields inherited from sun.awt.image.ImageDecoder protected boolean aborted(Code)(Java Doc) protected boolean finished(Code)(Java Doc) protected InputStream input(Code)(Java Doc) protected ImageConsumerQueue queue(Code)(Java Doc) protected InputStreamImageSource source(Code)(Java Doc) Methods inherited from sun.awt.image.ImageDecoder public void abort()(Code)(Java Doc) public synchronized void close()(Code)(Java Doc) protected void headerComplete()(Code)(Java Doc) protected int imageComplete(int status, boolean done)(Code)(Java Doc) public boolean isConsumer(ImageConsumer ic)(Code)(Java Doc) protected ImageConsumerQueue nextConsumer(ImageConsumerQueue cq)(Code)(Java Doc) abstract public void produceImage() throws IOException, ImageFormatException(Code)(Java Doc) public void removeConsumer(ImageConsumer ic)(Code)(Java Doc) protected int setColorModel(ColorModel model)(Code)(Java Doc) protected int setDimensions(int w, int h)(Code)(Java Doc) protected int setHints(int hints)(Code)(Java Doc) protected int setPixels(int x, int y, int w, int h, ColorModel model, byte pix, int off, int scansize)(Code)(Java Doc) protected int setPixels(int x, int y, int w, int h, ColorModel model, int pix, int off, int scansize)(Code)(Java Doc) protected int setProperties(Hashtable props)(Code)(Java Doc) Methods inherited from java.lang.Object public boolean equals(Object obj)(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)