/*
* org.openmicroscopy.shoola.env.rnd.roi.PointIteratorObserver
*
*------------------------------------------------------------------------------
* Copyright (C) 2006-2013 University of Dundee. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.env.rnd.roi;
//Java imports
import java.awt.Point;
//Third-party libraries
//Application-internal dependencies
/**
* Monitors a {@link PointIterator} as it proceeds in a point by point
* iteration of an <code>ROI</code>.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author Donald MacDonald
* <a href="mailto:donald@lifesci.dundee.ac.uk">donald@lifesci.dundee.ac.uk</a>
* @version 3.0
* @since OME3.0
*/
public interface PointIteratorObserver
{
/**
* Called just after the iteration begins, but before any pixels is
* retrieved.
*/
public void iterationStarted();
/**
* Called just before the 2D selection within a given plane is iterated.
*
* @param z The z coordinate (stack frame) of the plane.
* @param w The w coordinate (channel) of the plane.
* @param t The t coordinate (timepoint) of the plane.
* @param pointsCount How many points are contained in the selection that
* is about to be iterated.
*/
public void onStartPlane(int z, int w, int t, int pointsCount);
/**
* Called to notify the observer of the current pixel being iterated.
* The coordinates of the pixel belong to the 2D selection within the plane
* specified by the last call to {@link #onStartPlane(int, int, int, int)}.
*
* @param pixelValue The value of the current pixel.
* @param z The z coordinate (stack frame) of the plane.
* @param w The w coordinate (channel) of the plane.
* @param t The t coordinate (timepoint) of the plane.
* @param loc The location of the pixelValue on the 2D-selection.
*/
public void update(double pixelValue, int z, int w, int t, Point loc);
/**
* Called just after the 2D selection within a given plane has been
* iterated.
*
* @param z The z coordinate (stack frame) of the plane.
* @param w The w coordinate (channel) of the plane.
* @param t The t coordinate (timepoint) of the plane.
* @param pointsCount How many points are contained in the selection that
* has been iterated.
*/
public void onEndPlane(int z, int w, int t, int pointsCount);
/** Called just after the end of the iteration. */
public void iterationFinished();
}