/*
* org.openmicroscopy.shoola.agents.util.ui.RollOverThumbnail
*
*------------------------------------------------------------------------------
* Copyright (C) 2006-2008 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.agents.util.ui;
//Java imports
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Insets;
import java.awt.Point;
import java.awt.image.BufferedImage;
import javax.swing.JDialog;
//Third-party libraries
//Application-internal dependencies
import org.openmicroscopy.shoola.util.image.geom.Factory;
/**
* Dialog displaying a magnified thumbnail.
*
* @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 3.0-Beta3
*/
public class RollOverThumbnail
extends JDialog
{
/** The minimum magnification value. */
private final static int MINIMUM_ZOOM = 1;
/** The maximum magnification value. */
private final static int MAXIMUM_ZOOM = 2;
/** The image to display. */
private BufferedImage image;
/** The image to display. */
private BufferedImage originalImage;
/** The canvas hosting the image. */
private RollOverThumbnailCanvas canvas;
/** The magnification factor. */
private float zoomFactor;
/** Sets the property of the dialog window. */
private void setProperties()
{
setModal(false);
setResizable(false);
setUndecorated(true);
zoomFactor = MINIMUM_ZOOM;
}
/**
* Sets the size and preferred size of the canvas.
*
* @param w The width of the image.
* @param h The height of the image.
*/
private void makeComponentsSize(int w, int h)
{
if (canvas == null) return;
Insets i = canvas.getInsets();
Dimension d = new Dimension(w+i.right+i.left, h+i.top+i.bottom);
canvas.setPreferredSize(d);
canvas.setSize(d);
}
/** Builds and lays out the UI. */
private void buildUI()
{
Container container = getContentPane();
container.add(canvas, BorderLayout.CENTER);
}
/** Creates a new instance. */
public RollOverThumbnail()
{
canvas = new RollOverThumbnailCanvas(this);
setProperties();
buildUI();
}
/**
* Magnifies the displayed image.
*
* @param tick The number of "clicks" the mouse wheel was rotated.
*/
void magnifyImage(int tick)
{
zoomFactor -= 0.1f*tick;
zoomFactor = Math.round(zoomFactor*10)/10.0f;
if (zoomFactor < MINIMUM_ZOOM) zoomFactor = MINIMUM_ZOOM;
if (zoomFactor > MAXIMUM_ZOOM) zoomFactor = MAXIMUM_ZOOM;
image = Factory.magnifyImage(zoomFactor, originalImage);
makeComponentsSize(image.getWidth(), image.getHeight());
pack();
}
/**
* Returns the image to display.
*
* @return See above.
*/
BufferedImage getImage() { return image; }
/**
* Sets the image and resizes the components.
*
* @param full The thumbnail to display.
* @param toolTip The tooltip.
*/
public void setThumbnail(BufferedImage full, String toolTip)
{
canvas.setToolTipText(toolTip);
if (full != null) {
image = full;
originalImage = full;
makeComponentsSize(image.getWidth(), image.getHeight());
canvas.repaint();
}
}
/** Hides and disposes. */
public void close()
{
setVisible(true);
dispose();
}
/**
* Moves the window to the front and sets the location.
*
* @param p The new location.
*/
public void moveToFront(Point p) { moveToFront(p.x, p.y); }
/**
* Moves the window to the front and sets the location.
*
* @param x The x-coordinate.
* @param y The y-coordinate.
*/
public void moveToFront(int x, int y)
{
setLocation(x, y);
setVisible(true);
}
}