root/BH13SPARQLBuilder/src/hozo/sparql/util/EditableList.java @ 9

package jp.ac.osaka_u.sanken.util;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

import javax.swing.DefaultListModel;
import javax.swing.ImageIcon;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.ListCellRenderer;
import javax.swing.ListModel;
import javax.swing.event.ListSelectionListener;

/**
 * 鬆�岼縺ｮ霑ｽ蜉繝ｻ蜑企勁蜿ｯ閭ｽ縺ｪ繝ｪ繧ｹ繝�
 * @author mouse
 *
 */
public class EditableList extends JPanel {
        /**
         *
         */
        private static final long serialVersionUID = 8390493649442688888L;

        private EditableListList list;

        private JTextField textField;

        public EditableList(){
                this(new DefaultListModel());
        }

        /**
         * 繝｢繝�Ν繧呈欠螳壹＠縺ｦ繝ｪ繧ｹ繝育函謌�
         * @param model
         */
        public EditableList(ListModel model){
                this.list = new EditableListList(model);
                this.list.setFixedCellHeight(26);
                initialize();
        }

        /**
         * 繝ｪ繧ｹ繝医う繝吶Φ繝郁ｿｽ蜉蟋碑ｭｲ
         * @param l
         */
        public void addListSelectionListener(ListSelectionListener l){
                this.list.addListSelectionListener(l);
        }

        /**
         * 繝ｪ繧ｹ繝医う繝吶Φ繝亥炎髯､蟋碑ｭｲ
         * @param l
         */
        public void removeListSelectionListener(ListSelectionListener l){
                this.list.removeListSelectionListener(l);
        }

        /**
         * 繝｢繝�Ν蜿門ｾ怜ｧ碑ｭｲ
         * @return
         */
        public ListModel getModel(){
                return list.getModel();
        }

        /**
         * 鬆�岼霑ｽ蜉逕ｨ繝�く繧ｹ繝医ヵ繧｣繝ｼ繝ｫ繝牙叙蠕�
         * @return
         */
        public JTextField getTextField(){
                if (textField == null){
                        textField = new JTextField();
                        textField.addActionListener(new ActionListener() {

                                @Override
                                public void actionPerformed(ActionEvent e) {
                                        addCurrentItem();
                                }
                        });
                }
                return textField;
        }


        private void initialize(){
                this.setLayout(new BorderLayout());
                this.add(list, BorderLayout.CENTER);
                this.add(getTextField(), BorderLayout.SOUTH);
        }

        /**
         * 驕ｩ蛻�↑繧ｵ繧､繧ｺ繧定ｿ斐☆��ODO 迴ｾ螳溯｣�〒縺ｯ讓ｪ蟷�00蝗ｺ螳夲ｼ�
         */
        public Dimension getPreferredSize(){
                return new Dimension(400, (list.getModel().getSize()) * list.getFixedCellHeight() + getTextField().getPreferredSize().height);
        }

        private void addCurrentItem(){
                String word = getTextField().getText();

                if (word.trim().isEmpty()){
                        return;
                }
                boolean exists = false;
                for (int i=0; i<list.getModel().getSize(); i++){
                        Object obj = list.getModel().getElementAt(i);
                        if (obj.toString().equals(word)){
                                exists = true;
                                break;
                        }
                }
                if (!exists){
                        ((DefaultListModel)list.getModel()).addElement(new EditableListItem(word, true));
                        getTextField().setText("");
                }
        }

        class EditableListList extends JList {
                /**
                 *
                 */
                private static final long serialVersionUID = -8207275088256642406L;
                private EditableCellRenderer renderer;

                public EditableListList() {
                        super();

                        this.putClientProperty("List.isFileList", Boolean.TRUE);
                }

                public EditableListList(ListModel model) {
                        super(model);
                        this.putClientProperty("List.isFileList", Boolean.TRUE);
                }


                public void updateUI() {
                        setForeground(null);
                        setBackground(null);
                        setSelectionForeground(null);
                        setSelectionBackground(null);
                        if(renderer != null) {
                                removeMouseListener(renderer);
                                removeMouseMotionListener(renderer);
                        }
                        super.updateUI();
                        renderer = new EditableCellRenderer();
                        setCellRenderer(renderer);
                        addMouseListener(renderer);
                        addMouseMotionListener(renderer);
                }

                private boolean pointOutsidePrefSize(Point p) {
                        int index = locationToIndex(p);
                        DefaultListModel m = (DefaultListModel)getModel();
                        if (index < 0){
                                return false;
                        }
                        Object n = m.get(index);
                        Component c = getCellRenderer().getListCellRendererComponent(
                                        this, n, index, false, false);
                        c.doLayout();
                        Dimension d = c.getPreferredSize();
                        Rectangle rect = getCellBounds(index, index);
                        rect.width = d.width;
                        return index < 0 || !rect.contains(p);
                }
                @Override
                protected void processMouseEvent(MouseEvent e) {
                        if(!pointOutsidePrefSize(e.getPoint())) {
                                super.processMouseEvent(e);
                        }
                }
                @Override
                protected void processMouseMotionEvent(MouseEvent e) {
                        if(!pointOutsidePrefSize(e.getPoint())) {
                                super.processMouseMotionEvent(e);
                        }else{
                                e = new MouseEvent(
                                                (Component)e.getSource(), MouseEvent.MOUSE_EXITED, e.getWhen(),
                                                e.getModifiers(), e.getX(), e.getY(),
                                                e.getXOnScreen(), e.getYOnScreen(),
                                                e.getClickCount(), e.isPopupTrigger(), MouseEvent.NOBUTTON);
                                super.processMouseEvent(e);
                        }
                }
        }

        class EditableCellRenderer extends JPanel implements ListCellRenderer, MouseListener, MouseMotionListener {
                /**
                 *
                 */
                private static final long serialVersionUID = 5134902478737266926L;

                private final JRadioButton button;

                public EditableCellRenderer(){
                        button = new JRadioButton(new ImageIcon(getClass().getResource("x.png")));
                        button.setSelectedIcon(new ImageIcon(getClass().getResource("blank.png")));
                }

                @Override
                public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
                        Component ret;

                        if(value instanceof EditableListItem) {
                                button.setSelected(!((EditableListItem)value).deleteable);
                        } else {
                                button.setSelected(false);
                        }

                        button.setBackground(list.getBackground());
                        button.setForeground(list.getForeground());
                        button.setText(value.toString());
                        ret = button;

                        return ret;
                }


                @Override
                public void mouseExited(MouseEvent e) {
                }

                @Override
                public void mouseClicked(MouseEvent e) {
                        if(e.getButton()==MouseEvent.BUTTON1) {
                                JList l = (JList)e.getComponent();
                                DefaultListModel m = (DefaultListModel)l.getModel();
                                Point p = e.getPoint();
                                int index  = l.locationToIndex(p);
                                if(index>=0) {
                                        Object value = m.get(index);
                                        if(value instanceof EditableListItem) {
                                                if (!((EditableListItem)value).deleteable){
                                                        return;
                                                }
                                        }
                                        ((DefaultListModel)l.getModel()).remove(index);
                                        Rectangle rect = l.getCellBounds(index, index);
                                        if (rect != null){
                                                l.repaint(rect);
                                        }
                                }
                        }
                }

                @Override
                public void mouseMoved(MouseEvent e) {
                }



                @Override
                public void mouseEntered(MouseEvent e) {}

                @Override
                public void mousePressed(MouseEvent e) {}

                @Override
                public void mouseReleased(MouseEvent e) {}

                @Override
                public void mouseDragged(MouseEvent e) {}
        }
}