/*
*------------------------------------------------------------------------------
* Copyright (C) 2006-2007 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;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.util.Iterator;
import javax.swing.Icon;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.ListCellRenderer;
import javax.swing.SwingConstants;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import omero.gateway.model.ExperimenterData;
/**
* Renders the list of users.
*
* @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
*/
class UserListRenderer
extends JLabel
implements ListCellRenderer
{
/** Border of the component. */
private static final Border BORDER = new EmptyBorder(5, 5, 5, 5);
/** Background color of the even rows. */
private static final Color BACKGROUND = Color.WHITE;
/** Background color of the add rows. */
private static final Color BACKGROUND_ONE = new Color(236, 243, 254);
/** Gap between icon and text. */
private static final int GAP = 20;
/** Reference to the icon used to represent a user. */
private Icon userIcon;
/** The font to set when the value is a string.*/
private Font font;
/** The font to set when the value is a string.*/
private Font defaultFont;
/** Reference to the model.*/
private UserManagerDialog model;
/**
* Returns <code>true</code> if the experimenter is already displayed,
* <code>false</code> otherwise.
*
* @param experimenter The value to check.
* @return See above.
*/
private boolean isAlreadySelected(ExperimenterData experimenter)
{
long id = experimenter.getId();
Iterator<ExperimenterData> i = model.getSelectedUsers().iterator();
ExperimenterData exp;
while (i.hasNext()) {
exp = i.next();
if (exp.getId() == id)
return true;
}
return false;
}
/**
* Creates a new instance.
*
* @param model Reference to the model.
* @param userIcon The icon used to represent a user.
*/
public UserListRenderer(UserManagerDialog model, Icon userIcon)
{
setOpaque(true);
this.model = model;
this.userIcon = userIcon;
defaultFont = getFont();
font = defaultFont.deriveFont(Font.BOLD | Font.ITALIC,
defaultFont.getSize()-2);
}
/**
* Overridden to set border and color.
*
* @see javax.swing.ListCellRenderer#getListCellRendererComponent
* (javax.swing.JList, java.lang.Object, int, boolean, boolean)
*/
public Component getListCellRendererComponent(JList list, Object value,
int index, boolean isSelected, boolean hasFocus)
{
setEnabled(true);
if (value instanceof String) {
setFont(font);
setIcon(null);
setText((String) value);
setForeground(list.getForeground());
setBackground(BACKGROUND);
} else if (value instanceof ExperimenterData) {
setVerticalAlignment(SwingConstants.CENTER);
setFont(defaultFont);
setIcon(userIcon);
setIconTextGap(GAP);
ExperimenterData data = (ExperimenterData) value;
setText(data.getFirstName()+" "+data.getLastName());
if (isSelected) {
setForeground(list.getSelectionForeground());
setBackground(list.getSelectionBackground());
} else {
setForeground(list.getForeground());
if (index%2 == 0) setBackground(BACKGROUND);
else setBackground(BACKGROUND_ONE);
}
setEnabled(!isAlreadySelected((ExperimenterData) value));
}
setBorder(BORDER);
return this;
}
}