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}
}
PalleteImage Class
PaletteImage
PaletteImages
or other palette image formats that a particular device may support).
A single palette entry or the entire palette can be retrieved as a series of RGB values in
0xRRGGBB format (MIDP color format). The effects of the palette changes will be visible
in the next Image that is generated.
The following will be supported:
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Once the palette entries have been set to the desired values, a MIDP Image object is
retrieved that reflects the new palette settings.
PalleteImage Constructor
The
PalleteImage
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PalleteImage Methods
The
PalleteImage
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public Image getImage() - Creates and returns a new Image object
using this PaletteImage. The Image returned will reflect the PaletteImage's original
pixel data and current palette data. This method enables the developer to easily
generate a series of differently colored images by adjusting palette data.
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public int getTransparentIndex() – Gets the current transparent
index. Pixels that reference the transparent index in the palette are not drawn when
the image is rendered. By default, the transparent index is -1 even if a transparent
color is specified in the original image data.
provides methods for manipulating the color palette data of an image.
can only be created with palette-based image data (PNG color type 3,
Single color transparency: the entire palette may be fully opaque, or a single
palette entry may be designated as being fully transparent. Alpha channels are
not supported.
class defines the following constructors:
PalleteImage(byte[] data, int offset, int length)
throws IOException
Creates a new PalleteImage using the provided image
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data.
PalleteImage (java.lang.String name)
Creates a new PaletteImage using the provided image data in a named
resource.
class defines the following methods:
throws IOException
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