922 }
923
924 /**
925 * Returns the type of this <code>Transparency</code>.
926 * @return the field type of this <code>Transparency</code>, which is
927 * either OPAQUE, BITMASK or TRANSLUCENT.
928 */
929 public int getTransparency() {
930 return getColorModel().getTransparency();
931 }
932
933 /**
934 * Return a readable Raster which contains the pixels for the
935 * specified rectangular region of the destination surface.
936 * The coordinate origin of the returned Raster is the same as
937 * the device space origin of the destination surface.
938 * In some cases the returned Raster might also be writeable.
939 * In most cases, the returned Raster might contain more pixels
940 * than requested.
941 *
942 * @see useTightBBoxes
943 */
944 public abstract Raster getRaster(int x, int y, int w, int h);
945
946 /**
947 * Does the pixel accessibility of the destination surface
948 * suggest that rendering algorithms might want to take
949 * extra time to calculate a more accurate bounding box for
950 * the operation being performed?
951 * The typical case when this will be true is when a copy of
952 * the pixels has to be made when doing a getRaster. The
953 * fewer pixels copied, the faster the operation will go.
954 *
955 * @see getRaster
956 */
957 public boolean useTightBBoxes() {
958 // Note: The native equivalent would trigger on VISIBLE_TO_NATIVE
959 // REMIND: This is not used - should be obsoleted maybe
960 return true;
961 }
962
963 /**
964 * Returns the pixel data for the specified Argb value packed
965 * into an integer for easy storage and conveyance.
966 */
967 public int pixelFor(int rgb) {
968 return surfaceType.pixelFor(rgb, colorModel);
969 }
970
971 /**
972 * Returns the pixel data for the specified color packed into an
973 * integer for easy storage and conveyance.
974 *
975 * This method will use the getRGB() method of the Color object
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922 }
923
924 /**
925 * Returns the type of this <code>Transparency</code>.
926 * @return the field type of this <code>Transparency</code>, which is
927 * either OPAQUE, BITMASK or TRANSLUCENT.
928 */
929 public int getTransparency() {
930 return getColorModel().getTransparency();
931 }
932
933 /**
934 * Return a readable Raster which contains the pixels for the
935 * specified rectangular region of the destination surface.
936 * The coordinate origin of the returned Raster is the same as
937 * the device space origin of the destination surface.
938 * In some cases the returned Raster might also be writeable.
939 * In most cases, the returned Raster might contain more pixels
940 * than requested.
941 *
942 * @see #useTightBBoxes
943 */
944 public abstract Raster getRaster(int x, int y, int w, int h);
945
946 /**
947 * Does the pixel accessibility of the destination surface
948 * suggest that rendering algorithms might want to take
949 * extra time to calculate a more accurate bounding box for
950 * the operation being performed?
951 * The typical case when this will be true is when a copy of
952 * the pixels has to be made when doing a getRaster. The
953 * fewer pixels copied, the faster the operation will go.
954 *
955 * @see #getRaster
956 */
957 public boolean useTightBBoxes() {
958 // Note: The native equivalent would trigger on VISIBLE_TO_NATIVE
959 // REMIND: This is not used - should be obsoleted maybe
960 return true;
961 }
962
963 /**
964 * Returns the pixel data for the specified Argb value packed
965 * into an integer for easy storage and conveyance.
966 */
967 public int pixelFor(int rgb) {
968 return surfaceType.pixelFor(rgb, colorModel);
969 }
970
971 /**
972 * Returns the pixel data for the specified color packed into an
973 * integer for easy storage and conveyance.
974 *
975 * This method will use the getRGB() method of the Color object
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