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package org.openjdk.jmc.greychart.impl;

import java.awt.Polygon;
import java.util.Iterator;

import org.openjdk.jmc.ui.common.xydata.DataSeries;

import org.openjdk.jmc.greychart.YAxis;

public interface OptimizingProvider {

	public boolean update();

	/**
	 * Sets the range,
	 *
	 * @param start
	 *            the start value.
	 * @param end
	 *            the end value.
	 */
	public void setRange(long start, long end);

	/**
	 * The resolution for which to optimize the samples.
	 */
	public void setResolution(int resolution);

	/**
	 * @param width
	 * @return samples in data series coordinates (not neccessarily the same as world coordinates)
	 */
	Iterator<SamplePoint> getSamples(int width);

	Polygon getSamplesPolygon(LongWorldToDeviceConverter xWorldToDevice, WorldToDeviceConverter yWorldToDevice);

	public DataSeries getDataSeries();

	public OptimizingProvider[] getChildren();

	/**
	 * @return the minimum Y value in world coordinates
	 */
	public double getMinY();

	/**
	 * @return the maximum Y value in world coordinates
	 */
	public double getMaxY();

	public WorldToDeviceConverter getYSampleToDeviceConverterFor(YAxis yAxis);

	public long getMinX();

	public long getMaxX();

	public void setDataChanged(boolean changed);

	public boolean hasDataChanged();

}
