javax.swing.JList#getSelectedIndices ( )源码实例Demo

protected String exportString(JComponent c) {
    JList list = (JList) c;
    indices = list.getSelectedIndices();
    @SuppressWarnings("deprecation")
    Object[] values = list.getSelectedValues();

    StringBuffer buff = new StringBuffer();

    for (int i = 0; i < values.length; i++) {
        Object val = values[i];
        buff.append(val == null ? "" : val.toString());
        if (i != values.length - 1) {
            buff.append("\n");
        }
    }

    return buff.toString();
}
 

public String getValue() {
    CheckBoxListCellRenderer cbListRenderer = (CheckBoxListCellRenderer) getComponent();
    if (cbListRenderer instanceof JComponent) {
        JList list = (JList) cbListRenderer.getClientProperty("jlist");
        if (list.getSelectedIndices().length > 1) {
            return null;
        }
    }
    Component[] childern = cbListRenderer.getComponents();
    for (Component c : childern) {
        if (c instanceof JCheckBox) {
            return String.valueOf(((JCheckBox) c).isSelected());
        }
    }
    return null;
}
 

public ListParameter(JList list, String parameter, String encoding) {
    super(parameter, encoding);
    this.list = list;
    list.setModel(new DefaultListModel());
    list.addListSelectionListener(new ListSelectionListener(){
        @Override
        public void valueChanged(ListSelectionEvent e) {
            int[] s = ListParameter.this.list.getSelectedIndices();
            if(e.getValueIsAdjusting()) {
                return;
            }
            fireStateChanged();
        };
    });
    original = list.getSelectedIndices();
    fireStateChanged();
}
 

public static Set<Table> getSelectedTables(JList list, boolean enabledOnly) {
    Set<Table> result = new HashSet<>();

    int[] selected = list.getSelectedIndices();
    for (int i = 0; i < selected.length; i++) {
        Table table = (Table) list.getModel().getElementAt(selected[i]);
        if (enabledOnly) {
            if (!list.getCellRenderer().getListCellRendererComponent(list, table, selected[i], false, false).isEnabled()) {
                continue;
            }
        }
        result.add(table);
    }

    return result;
}
 

private List<ComparisonItem> getSelectedItems(JList<ComparisonItem> list, DefaultListModel<ComparisonItem> listModel, boolean removeFromModel) {
    List<ComparisonItem> results = new ArrayList<ComparisonItem>();
    int[] indices = list.getSelectedIndices() ;
    for (int index : indices) 
    {
        results.add(listModel.get(index)) ;
    }
    if (removeFromModel)
    {
    	// we must remove the element in a correct order
    	for (int i = indices.length - 1 ; i >= 0 ; --i)
    	{
    		listModel.remove(indices[i]);
    	}
    }
    return results;
}
 

public String getSelectionText(JList list) {
    List<Properties> pa = new ArrayList<Properties>();
    int[] selectedIndices = list.getSelectedIndices();
    for (int index : selectedIndices) {
        Properties p = new Properties();
        p.setProperty("listText", new JListItemJavaElement(this, index)._getText());
        pa.add(p);
    }
    return PropertyHelper.toString(pa.toArray(new Properties[pa.size()]), new String[] { "listText" });
}
 

public String getSelectionText(JList list) {
    List<Properties> pa = new ArrayList<Properties>();
    int[] selectedIndices = list.getSelectedIndices();
    for (int index : selectedIndices) {
        Properties p = new Properties();
        p.setProperty("listText", getText(list, index));
        pa.add(p);
    }
    return PropertyHelper.toString(pa.toArray(new Properties[pa.size()]), new String[] { "listText" });
}
 

public static Set<Table> getSelectedTables(JList list, boolean enabledOnly) {
    Set<Table> result = new HashSet<Table>();

    int[] selected = list.getSelectedIndices();
    for (int i = 0; i < selected.length; i++) {
        Table table = (Table)list.getModel().getElementAt(selected[i]);
        if(enabledOnly){
            if(!list.getCellRenderer().getListCellRendererComponent(list, table, selected[i], false, false).isEnabled())continue;
        }
        result.add(table);
    }

    return result;
}
 

@Override
public Transferable createTransferable(JComponent comp) {
    final JList list = (JList)comp;
    indices = list.getSelectedIndices();
    if (indices.length == 0) {
        return null;
    }
    return new FileListTransferable(safeCopy(list.getSelectedValues(),File.class));
}
 

private void javaCompletionExcluderRemoveButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_javaCompletionExcluderRemoveButtonActionPerformed
    JList list = getSelectedExcluderList();
    int[] rows = list.getSelectedIndices();
    DefaultListModel model = (DefaultListModel) list.getModel();
    // remove rows in descending order: row numbers change when a row is removed
    for (int row = rows.length - 1; row >= 0; row--) {
        model.remove(rows[row]);
    }
    updateExcluder(list);
}
 

/**
 * {@inheritDoc}
 */
@Override
protected Transferable createTransferable(JComponent c) {
    JList list = (JList)c;
    final DefaultListModel model = (DefaultListModel)list.getModel();
    int[] indicies = list.getSelectedIndices();
    List<TradeRouteStop> stops = new ArrayList<>(indicies.length);
    for (int i : indicies) stops.add(i, (TradeRouteStop)model.get(i));
    return new StopListTransferable(stops);
}
 

public static int[] isSelected(JList<File> list) {
	int[] selected = list.getSelectedIndices();
	if (selected.length < 1) {
		Alert.error(I18N.getHtmlText("Validator.selectOne.alert"));
	}
	return selected;
}
 

@Override
protected Transferable createTransferable(JComponent c) {
    JList list = (JList) c;
    return new JListTransferable(list.getSelectedIndices());
}
 

public boolean isSingleStoredObjectSelected(JList<ComparisonItem> list) {
    return list.getSelectedIndices().length == 1;
}
 

private void doImport() {
	try {
		String data = (String) Toolkit.getDefaultToolkit().getSystemClipboard()
				.getData(DataFlavor.stringFlavor);
		String prefix = "market://details?id="; //$NON-NLS-1$
		StringTokenizer st = new StringTokenizer(data);
		Vector<String> lst = new Vector<String>();
		int count = 0;
		while (st.hasMoreElements()) {
			// Lets first check the entire clipboard if its content is well formed.
			String url = st.nextToken();
			if (url.startsWith(prefix) && url.length() > prefix.length()) {
				// Let's keep it simple.
				String id = url.substring(prefix.length(), url.length());
				if (!lst.contains(id) && !archive.fileUnder(id, 0).getParentFile().exists()) {
					lst.add(id);
					count++;
				}
			}
		}

		// We got at least one new app id. Ask the user to confirm the list, then
		// create files.
		if (count > 0) {
			JList<String> all = new JList<String>(lst);
			all.addSelectionInterval(0, lst.size() - 1);
			if (JOptionPane
					.showConfirmDialog(
							this,
							new JScrollPane(all),
							Messages.getString("MainActivity.42"), JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE, null) == JOptionPane.OK_OPTION) {//$NON-NLS-1$
				int[] sel = all.getSelectedIndices();
				for (int idx : sel) {
					archive.fileUnder(all.getModel().getElementAt(idx), 0).getParentFile().mkdirs();
				}
				searchView.doMessage(Messages.getString("MainActivity.39")); //$NON-NLS-1$
			}
		}
		else {
			// Tell the user that no new items were found.
			searchView.doMessage(Messages.getString("MainActivity.43")); //$NON-NLS-1$
		}
	}
	catch (Exception e) {
		searchView.doMessage(Messages.getString("MainActivity.40")); //$NON-NLS-1$
		// e.printStackTrace();
	}
}