/*
* org.openmicroscopy.shoola.util.ui.lens.ZoomAction
*
*------------------------------------------------------------------------------
* Copyright (C) 2006 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.util.ui.lens;
//Java imports
import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
//Third-party libraries
//Application-internal dependencies
/**
* This is the action to zoom the lens, changing the magnification based on the
* user input; index.
*
* @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
* <small>
* (<b>Internal version:</b> $Revision: $Date: $)
* </small>
* @since OME3.0
*/
class ZoomAction
extends AbstractAction
{
/** Number of options in action. */
final static int MAX = 11;
/** Constant for zoom action to set the magnification of the lens to x1.*/
final static int ZOOMx1 = 0;
/** Constant for zoom action to set the magnification of the lens to x2.*/
final static int ZOOMx2 = 1;
/** Constant for zoom action to set the magnification of the lens to x3.*/
final static int ZOOMx3 = 2;
/** Constant for zoom action to set the magnification of the lens to x4.*/
final static int ZOOMx4 = 3;
/** Constant for zoom action to set the magnification of the lens to x5.*/
final static int ZOOMx5 = 4;
/** Constant for zoom action to set the magnification of the lens to x6.*/
final static int ZOOMx6 = 5;
/** Constant for zoom action to set the magnification of the lens to x7.*/
final static int ZOOMx7 = 6;
/** Constant for zoom action to set the magnification of the lens to x8.*/
final static int ZOOMx8 = 7;
/** Constant for zoom action to set the magnification of the lens to x9.*/
final static int ZOOMx9 = 8;
/** Constant for zoom action to set the magnification of the lens to x10.*/
final static int ZOOMx10 = 9;
/** Constant for zoom action to set the magnification of the lens to x10.*/
final static int MANUAL = 10;
/** Parent component of the lens object. */
private LensComponent lens;
/** Index used to determine which zoom action to perform on the lens. */
private int index;
/** Names for each action associated with the change in magnification. */
private static String[] names;
static {
names = new String[MAX];
names[ZOOMx1] = "100%";
names[ZOOMx2] = "200%";
names[ZOOMx3] = "300%";
names[ZOOMx4] = "400%";
names[ZOOMx5] = "500%";
names[ZOOMx6] = "600%";
names[ZOOMx7] = "700%";
names[ZOOMx8] = "800%";
names[ZOOMx9] = "900%";
names[ZOOMx10] = "1000%";
names[MANUAL] = "Manual";
}
/**
* Controls if the specified index is valid.
*
* @param i The index to check.
*/
private void checkIndex(int i)
{
switch (i) {
case ZOOMx1:
case ZOOMx2:
case ZOOMx3:
case ZOOMx4:
case ZOOMx5:
case ZOOMx6:
case ZOOMx7:
case ZOOMx8:
case ZOOMx9:
case ZOOMx10:
case MANUAL:
return;
default:
throw new IllegalArgumentException("Index not supported.");
}
}
/**
* Returns the index corresponding to the passed factor.
*
* @param i The magnification factor.
* @return See above.
*/
static int factorToIndex(float i)
{
double d = Math.ceil(i);
if ((i-d) != 0) return MANUAL;
int v = (int) i;
switch (v) {
case ZOOMx1+1:
return ZOOMx1;
case ZOOMx2+1:
return ZOOMx2;
case ZOOMx3+1:
return ZOOMx3;
case ZOOMx4+1:
return ZOOMx4;
case ZOOMx5+1:
return ZOOMx5;
case ZOOMx6+1:
return ZOOMx6;
case ZOOMx7+1:
return ZOOMx7;
case ZOOMx8+1:
return ZOOMx8;
case ZOOMx9+1:
return ZOOMx9;
case ZOOMx10+1:
return ZOOMx10;
default:
return MANUAL;
}
}
/**
* Zoom action changes the magnification of the lens based on the parameter
* zoomIndex.
*
* @param lens The parent component.
* @param zoomIndex The index of the action.
*/
ZoomAction(LensComponent lens, int zoomIndex)
{
this.lens = lens;
checkIndex(zoomIndex);
index = zoomIndex;
putValue(Action.NAME, names[index]);
}
/**
* Returns the index of the action.
*
* @return See above.
*/
int getIndex() { return index; }
/**
* Sets the magnification factor.
* @see java.awt.event.ActionListener#actionPerformed(ActionEvent)
*/
public void actionPerformed(ActionEvent e)
{
if (index != MANUAL) lens.setZoomFactor(index+1);
}
}