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82 lines
2.7 KiB
82 lines
2.7 KiB
//==============================================================================
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//
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// Copyright (c) 2002-
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// Authors:
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// * Dave Parker <d.a.parker@cs.bham.ac.uk> (University of Birmingham/Oxford)
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//
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//------------------------------------------------------------------------------
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//
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// This file is part of PRISM.
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//
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// PRISM is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// PRISM is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with PRISM; if not, write to the Free Software Foundation,
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// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//==============================================================================
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package userinterface;
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import java.awt.Component;
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import java.awt.event.MouseAdapter;
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import java.awt.event.MouseEvent;
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import javax.swing.JCheckBox;
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import javax.swing.JList;
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import javax.swing.ListCellRenderer;
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import javax.swing.ListSelectionModel;
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import javax.swing.UIManager;
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import javax.swing.border.Border;
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import javax.swing.border.EmptyBorder;
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/**
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* Extension of JList containing JCheckBoxes.
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*/
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@SuppressWarnings("serial")
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public class CheckBoxList extends JList
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{
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protected static Border noFocusBorder = new EmptyBorder(1, 1, 1, 1);
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public CheckBoxList()
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{
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setCellRenderer(new CellRenderer());
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addMouseListener(new MouseAdapter()
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{
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public void mousePressed(MouseEvent e)
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{
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int index = locationToIndex(e.getPoint());
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if (index != -1) {
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JCheckBox checkbox = (JCheckBox) getModel().getElementAt(index);
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checkbox.setSelected(!checkbox.isSelected());
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repaint();
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}
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}
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});
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setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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}
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protected class CellRenderer implements ListCellRenderer
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{
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public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus)
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{
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JCheckBox checkbox = (JCheckBox) value;
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checkbox.setBackground(isSelected ? getSelectionBackground() : getBackground());
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checkbox.setForeground(isSelected ? getSelectionForeground() : getForeground());
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checkbox.setEnabled(isEnabled());
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checkbox.setFont(getFont());
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checkbox.setFocusPainted(false);
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checkbox.setBorderPainted(true);
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checkbox.setBorder(isSelected ? UIManager.getBorder("List.focusCellHighlightBorder") : noFocusBorder);
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return checkbox;
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}
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}
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}
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