Transformer.java

package ij.plugin.filter;
import ij.*;
import ij.process.*;
import ij.gui.*;
import ij.measure.Calibration;
import java.awt.*;
import java.awt.image.*;

public class Transformer implements PlugInFilter {
    
    ImagePlus imp;
    String arg;

    public int setup(String arg, ImagePlus imp) {
        this.arg = arg;
        this.imp = imp;
        if (arg.equals("fliph") || arg.equals("flipv"))
            return IJ.setupDialog(imp, DOES_ALL+NO_UNDO);
        else
            return DOES_ALL+NO_UNDO+NO_CHANGES;
    }

    public void run(ImageProcessor ip) {

        if (arg.equals("fliph")) {
            ip.flipHorizontal();
            return;
        }
        
        if (arg.equals("flipv")) {
            ip.flipVertical();
            return;
        }
        
        if (arg.equals("right"))
            ip = ip.rotateRight();
        else
            ip = ip.rotateLeft();
        Calibration cal1 = imp.getCalibration();
        imp.changes = false;
        ImagePlus imp2 = new ImagePlus(imp.getTitle(), ip);
        imp2.show();
        return;
    }

}