import ij.IJ;
import ij.ImagePlus;

import ij.gui.DialogListener;
import ij.gui.GenericDialog;

import ij.plugin.Duplicator;
import ij.plugin.filter.ExtendedPlugInFilter;
import ij.plugin.filter.PlugInFilterRunner;

import ij.process.ImageProcessor;

import java.awt.AWTEvent;

/**
 * This is a simple plugin to illustrate a bug.
 */
public class Bug_Report implements ExtendedPlugInFilter, DialogListener {
	private ImagePlus imp;
	private int nPasses = 0;
	private double number;
	private int flags = DOES_8G | DOES_16 | DOES_32 | NO_CHANGES;

	@Override
	public int setup(String arg, ImagePlus imp) {
		this.imp = imp;
		return flags;
	}

	@Override
	public void setNPasses (int nPasses) {
		this.nPasses = nPasses;
	}

	@Override
	public int showDialog (ImagePlus imp, String cmd, PlugInFilterRunner pfr) {
		GenericDialog gd = new GenericDialog("Please enter any number");
		gd.addNumericField("Number", 1, 5);
		gd.addPreviewCheckbox(pfr);
		gd.addDialogListener(this);
		gd.showDialog();
		if (gd.wasCanceled())
			return DONE;
		return flags;
	}

	@Override
	public boolean dialogItemChanged(GenericDialog gd, AWTEvent e) {
		number = gd.getNextNumber();
		return (!gd.invalidNumber());
	}

	@Override
	public void run(ImageProcessor ip) {
		IJ.log("Run, Forrest, run!");
		IJ.run(imp, "Smooth", "");
	}
}