Application: gvSIG desktop » gvSIG raster

package org.gvsig.fmap.dal.coverage.filter;

import java.util.List;

import org.gvsig.fmap.dal.coverage.dataset.Buffer;

import org.gvsig.fmap.dal.coverage.store.props.HistogramComputer;

import org.gvsig.fmap.dal.coverage.store.props.Statistics;

import org.gvsig.fmap.dal.coverage.store.props.Transparency;

import org.gvsig.raster.roi.ROI;

/**

 * <P>

 * Applies the stack of filters to a buffer. With the same <code>FilterLoader</code>

 * you can process different buffers. Each buffer can use a different environment

 * </P>

 *

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public interface FilterLoader {

        public void addTransparency(Transparency transparency);

        public void addSrcDataType(int datatype);

        public void addSrcBandCount(int bandcount);

        public void addSrcStatistics(Statistics statistics);

        public void addSrcROI(List<ROI> roi);

        public void addSrcHistogram(HistogramComputer histogram);

        public Buffer applyFilters(Buffer buffer);

        /**

         * Gets the transparency object and the color interpretation of the result. 

         * Mostly, filters returns ARGB images but sometimes the filter can modify 

         * the transparency configuration and the color interpretation.

         * For instance, when a color table is applied or a alpha band is added 

         * by the filter.

         * @return

         */

        public Transparency getTransparency();

        /**

         * Gets the buffer result after the function applyFilters is executed.

         * If the buffer has not been modified, it will return the input buffer.

         * @return

         */

        public Buffer getBufferResult();

}