| java.lang.Object
 org.vfny.geoserver.wms.responses.ImageUtils
| ImageUtils | | public class ImageUtils (Code) | | Provides utility methods for the shared handling of images by the raster map
and legend producers.
author:
Gabriel Roldan
version:
$Id$ |
| Method Summary | |
| public static BufferedImage | createImage(int width, int height, IndexColorModel palette, boolean transparent)
Sets up a
BufferedImage.TYPE_4BYTE_ABGR if the paletteInverter is
not provided, or a indexed image otherwise. | | public static RenderedImage | forceIndexed8Bitmask(RenderedImage originalImage, InverseColorMapOp invColorMap)
| | public static Graphics2D | prepareTransparency(boolean transparent, Color bgColor, RenderedImage preparedImage, Map extraHints)
Sets up and returns a
Graphics2D for the given
preparedImage, which is already prepared with a
transparent background or the given background color.
Parameters:
transparent - whether the graphics is transparent or not.
Parameters:
bgColor - the background color to fill the graphics with if its nottransparent.
Parameters:
preparedImage - the image for which to create the graphics.
Parameters:
extraHints - an optional map of extra rendering hints to apply to theGraphics2D, other thanRenderingHints.KEY_ANTIALIASING. |
| createImage | | public static BufferedImage createImage(int width, int height, IndexColorModel palette, boolean transparent)(Code) | | Sets up a
BufferedImage.TYPE_4BYTE_ABGR if the paletteInverter is
not provided, or a indexed image otherwise. Subclasses may override this
method should they need a special kind of image
Parameters:
width - the width of the image to create.
Parameters:
height - the height of the image to create.
Parameters:
paletteInverter - an IndexColorModel if the image is to be indexed, ornull otherwise. an image of size width x height appropriate forthe given color model, if any, and to be used as a transparentimage or not depending on the transparentparameter. |
| forceIndexed8Bitmask | | public static RenderedImage forceIndexed8Bitmask(RenderedImage originalImage, InverseColorMapOp invColorMap)(Code) | |
Parameters:
originalImage - |
| prepareTransparency | | public static Graphics2D prepareTransparency(boolean transparent, Color bgColor, RenderedImage preparedImage, Map extraHints)(Code) | | Sets up and returns a
Graphics2D for the given
preparedImage, which is already prepared with a
transparent background or the given background color.
Parameters:
transparent - whether the graphics is transparent or not.
Parameters:
bgColor - the background color to fill the graphics with if its nottransparent.
Parameters:
preparedImage - the image for which to create the graphics.
Parameters:
extraHints - an optional map of extra rendering hints to apply to theGraphics2D, other thanRenderingHints.KEY_ANTIALIASING. a Graphics2D for preparedImage withtransparent background if transparent == true orwith the background painted with bgColorotherwise. |
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