Examples with DropLocation javax.swing.JList.DropLocation used on opensource projects

Example 1 with DropLocation

use of javax.swing.JList.DropLocation in project knime-core by knime.

the class DropPane method createColumnList.

/**
 */
protected void createColumnList() {
    m_columnListModel = new DefaultListModel<String>();
    m_columnList = new JList<String>(m_columnListModel);
    m_columnList.addMouseListener(new MouseListener() {

        @Override
        public void mouseReleased(final MouseEvent e) {
        // TODO Auto-generated method stub
        }

        @Override
        public void mousePressed(final MouseEvent e) {
        // TODO Auto-generated method stub
        }

        @Override
        public void mouseExited(final MouseEvent e) {
        // TODO Auto-generated method stub
        }

        @Override
        public void mouseEntered(final MouseEvent e) {
        // TODO Auto-generated method stub
        }

        @Override
        public void mouseClicked(final MouseEvent e) {
            if (e.getClickCount() > 1) {
                int i = m_columnList.getSelectedIndex();
                getConfig().addElement(m_columnListModel.get(i));
                m_columnListModel.remove(i);
            }
        }
    });
    m_columnList.setCellRenderer(new ListCellRenderer<String>() {

        @Override
        public Component getListCellRendererComponent(final JList<? extends String> list, final String value, final int index, final boolean isSelected, final boolean cellHasFocus) {
            if (value.endsWith(" ")) {
                JLabel l = new JLabel(value.trim());
                l.setBorder(BorderFactory.createLineBorder(Color.RED));
                return l;
            } else {
                return new JLabel(value);
            }
        }
    });
    m_columnList.setAutoscrolls(true);
    m_columnList.addPropertyChangeListener("dropLocation", new PropertyChangeListener() {

        @Override
        public void propertyChange(final PropertyChangeEvent evt) {
            DropLocation dropLocation = (DropLocation) (evt.getNewValue());
            if (dropLocation != null) {
                int mouseY = getParent().getMousePosition().y;
                int mouseX = getParent().getMousePosition().x;
                getParent().dispatchEvent(new MouseEvent(getParent(), MouseEvent.MOUSE_DRAGGED, System.currentTimeMillis(), 0, mouseX, mouseY, mouseX, mouseY, 1, false, MouseEvent.BUTTON1));
            }
        }
    });
    m_columnList.setDragEnabled(true);
    m_columnList.setTransferHandler(new ListTransferHandler());
    m_columnList.getModel().addListDataListener(new ListDataListener() {

        @Override
        public void intervalRemoved(final ListDataEvent e) {
            if (m_columnList.getModel().getSize() == 0) {
                getParent().remove(getComponentPanel());
                getParent().repaint();
                setParent(null);
                getConfig().removePanel(getPosition());
            } else if (!m_loading) {
                getConfig().getData().get(getPosition()).getSelection().clear();
                for (int i = 0; i < m_columnListModel.getSize(); i++) {
                    getConfig().getData().get(getPosition()).getSelection().add(m_columnListModel.getElementAt(i));
                }
            }
        }

        @Override
        public void intervalAdded(final ListDataEvent e) {
            if (!m_loading) {
                getConfig().getData().get(getPosition()).getSelection().clear();
                for (int i = 0; i < m_columnListModel.getSize(); i++) {
                    getConfig().getData().get(getPosition()).getSelection().add(m_columnListModel.getElementAt(i));
                }
            }
        }

        @Override
        public void contentsChanged(final ListDataEvent e) {
        // nothing
        }
    });
    m_columnList.setPreferredSize(new Dimension(100, 100));
    List<String> columns = getConfig().getData().get(getPosition()).getSelection();
    for (int i = 0; i < columns.size(); i++) {
        m_columnListModel.add(i, columns.get(i));
    }
    m_columnList.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.LOWERED));
}