jdk.awt.image.ReplicateScaleFilter — clojure-interop/java.awt 1.0.5

An ImageFilter class for scaling images using the simplest algorithm. This class extends the basic ImageFilter Class to scale an existing image and provide a source for a new image containing the resampled image. The pixels in the source image are sampled to produce pixels for an image of the specified size by replicating rows and columns of pixels to scale up or omitting rows and columns of pixels to scale down. It is meant to be used in conjunction with a FilteredImageSource object to produce scaled versions of existing images. Due to implementation dependencies, there may be differences in pixel values of an image filtered on different platforms.

->replicate-scale-filter clj

(->replicate-scale-filter width height)

Constructor.

Constructs a ReplicateScaleFilter that scales the pixels from its source Image as specified by the width and height parameters.

width - the target width to scale the image - int height - the target height to scale the image - int

throws: java.lang.IllegalArgumentException - if width equals zero or height equals zero

set-dimensions clj

(set-dimensions this w h)

Override the dimensions of the source image and pass the dimensions of the new scaled size to the ImageConsumer.

Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.

w - the width of the source image - int h - the height of the source image - int

set-pixels clj

(set-pixels this x y w h model pixels off scansize)

Choose which rows and columns of the delivered byte pixels are needed for the destination scaled image and pass through just those rows and columns that are needed, replicated as necessary.

Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.

x - the X coordinate of the upper-left corner of the area of pixels to be set - int y - the Y coordinate of the upper-left corner of the area of pixels to be set - int w - the width of the area of pixels - int h - the height of the area of pixels - int model - the specified ColorModel - java.awt.image.ColorModel pixels - the array of pixels - byte[] off - the offset into the pixels array - int scansize - the distance from one row of pixels to the next in the pixels array - int

set-properties clj

(set-properties this props)

Passes along the properties from the source object after adding a property indicating the scale applied. This method invokes super.setProperties, which might result in additional properties being added.

Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.

props - the properties from the source object - java.util.Hashtable