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package com.connor.zf.util;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.awt.event.ItemEvent;
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import java.awt.event.ItemListener;
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import java.awt.event.KeyEvent;
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import java.awt.event.KeyListener;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Vector;
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import javax.swing.ComboBoxModel;
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import javax.swing.DefaultComboBoxModel;
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import javax.swing.JComboBox;
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import javax.swing.JFrame;
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import javax.swing.JTextField;
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import javax.swing.event.DocumentEvent;
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import javax.swing.event.DocumentListener;
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import org.eclipse.swt.events.ModifyEvent;
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import org.eclipse.swt.events.ModifyListener;
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import org.eclipse.swt.graphics.Point;
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import org.eclipse.swt.widgets.Combo;
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public class JAutoCompleteComboBox extends JComboBox {
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private AutoCompleter completer;
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public JAutoCompleteComboBox() {
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super();
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addCompleter();
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}
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public JAutoCompleteComboBox(ComboBoxModel cm) {
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super(cm);
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addCompleter();
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}
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public JAutoCompleteComboBox(Object[] items) {
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super(items);
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addCompleter();
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}
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public JAutoCompleteComboBox(List v) {
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super((Vector) v);
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addCompleter();
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}
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private void addCompleter() {
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setEditable(true);
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completer = new AutoCompleter(this);
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}
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public void autoComplete(String str) {
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this.completer.autoComplete(str, str.length());
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}
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public String getText() {
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return ((JTextField) getEditor().getEditorComponent()).getText();
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}
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public void setText(String text) {
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((JTextField) getEditor().getEditorComponent()).setText(text);
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}
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public boolean containsItem(String itemString) {
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for (int i = 0; i < this.getModel().getSize(); i++) {
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String _item = " " + this.getModel().getElementAt(i);
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if (_item.equals(itemString))
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return true;
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}
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return false;
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}
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public static void main(String[] args) {
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JFrame frame = new JFrame();
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Object[] items = new Object[] { "", "abc ", "aab ", "aba ", "hpp ",
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"pp ", "hlp " };
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DefaultComboBoxModel model = new DefaultComboBoxModel();
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JAutoCompleteComboBox cmb = new JAutoCompleteComboBox();
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cmb.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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// TODO Auto-generated method stub
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String actionCommand2 = e.getActionCommand();
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System.out.println("<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"+actionCommand2);
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System.out.println("<22><>ǰѡ<C7B0><D1A1>ֵ1<D6B5><31>"+cmb.getText());
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System.out.println("<22><>ǰѡ<C7B0><D1A1>ֵ2<D6B5><32>"+cmb.getSelectedItem().toString());
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}
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});
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cmb.addItem("");
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cmb.addItem("<22><>Ʒ");
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cmb.addItem("<22><><EFBFBD><EFBFBD>Ʒ");
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cmb.addItem("<22><><EFBFBD><EFBFBD>");
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cmb.addItem("<22><>");
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cmb.addItem("<22><>");
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model.addElement("");
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model.addElement("abc ");
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model.addElement("aab ");
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model.addElement("aba ");
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model.addElement("hpp ");
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model.addElement("pp ");
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model.addElement("hlp ");
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frame.getContentPane().add(cmb);
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frame.setSize(400, 80);
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frame.setVisible(true);
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// try {
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// Thread.sleep(1*1000);
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// System.out.println(cmb.getText());
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// } catch (InterruptedException e) {
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// // TODO Auto-generated catch block
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// e.printStackTrace();
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// }
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}
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class AutoCompleter implements KeyListener, ItemListener {
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private JComboBox owner = null;
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private JTextField editor = null;
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private ComboBoxModel model = null;
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public AutoCompleter(JComboBox comboBox) {
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owner = comboBox;
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editor = (JTextField) comboBox.getEditor().getEditorComponent();
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editor.addKeyListener(this);
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// editor.getDocument().addDocumentListener(new DocumentListener() {
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//
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// @Override
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// public void removeUpdate(DocumentEvent e) {
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// System.out.println("ɾ<><C9BE>");
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// int caretPosition = editor.getCaretPosition();
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// String str = editor.getText();
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// autoComplete(str, caretPosition);
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// }
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//
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// @Override
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// public void insertUpdate(DocumentEvent e) {
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// System.out.println("<22><><EFBFBD><EFBFBD>");
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// }
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//
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// @Override
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// public void changedUpdate(DocumentEvent e) {
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// System.out.println("<22><EFBFBD>");
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// }
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// });
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model = comboBox.getModel();
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owner.addItemListener(this);
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}
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public void keyTyped(KeyEvent e) {
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}
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public void keyPressed(KeyEvent e) {
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}
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public void keyReleased(KeyEvent e) {
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char ch = e.getKeyChar();
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// if (ch == KeyEvent.CHAR_UNDEFINED || Character.isISOControl(ch)
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// || ch == KeyEvent.VK_DELETE)
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// return;
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// System.out.println("str="+str);
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// System.out.println("caretPosition="+caretPosition);
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// if (str.length() == 0)
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// return;
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// if(ch == KeyEvent.VK_ENTER) {
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// System.out.println("ִ<>м<EFBFBD><D0BC><EFBFBD>");
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// int caretPosition = editor.getCaretPosition();
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// String str = editor.getText();
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// autoComplete(str, caretPosition);
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// }
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new Thread(new Runnable() {
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@Override
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public void run() {
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// TODO Auto-generated method stub
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try {
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Thread.sleep(500);
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int caretPosition = editor.getCaretPosition();
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String str = editor.getText();
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autoComplete(str, caretPosition);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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}).start();
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}
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/**
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* <20>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>ɡ<EFBFBD><C9A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD><EFBFBD>б<EFBFBD><D0B1><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD>Ŀ.
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*/
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protected void autoComplete(String strf, int caretPosition) {
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System.out.println("<22><>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD>±꣺"+caretPosition);
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Object[] opts;
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opts = getMatchingOptions(strf.substring(0, caretPosition));
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if (owner != null) {
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model = new DefaultComboBoxModel(opts);
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owner.setModel(model);
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}
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if (opts.length > 0) {
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String str = opts[0].toString();
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try {
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editor.setCaretPosition(caretPosition);
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}catch (Exception e) {
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}
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if (owner != null) {
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try {
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owner.showPopup();
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} catch (Exception ex) {
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ex.printStackTrace();
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}
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}
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}
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}
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/**
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*
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* <20>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD>Ŀ, <20><><EFBFBD>ҽ<EFBFBD>֮<EFBFBD><D6AE><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>档
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*
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* @param str
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* @return <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>б<EFBFBD><D0B1><EFBFBD>
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*/
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protected Object[] getMatchingOptions(String str) {
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// System.out.println("str2="+str);
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List v = new Vector();
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List v1 = new Vector();
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if("".equals(str)) {
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boolean hasempty = false;
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for (int k = 0; k < model.getSize(); k++) {
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Object itemObj = model.getElementAt(k);
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if (itemObj != null) {
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String item = itemObj.toString();
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if(!"".equals(item))
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item = item.toLowerCase();
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if (item.equals(str)) {
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hasempty = true;
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v.add(model.getElementAt(k));
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}else {
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v1.add(model.getElementAt(k));
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}
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} else {
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hasempty = true;
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v1.add(model.getElementAt(k));
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}
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}
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if(!hasempty) {
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v.add("");
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}
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}else {
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for (int k = 0; k < model.getSize(); k++) {
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Object itemObj = model.getElementAt(k);
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if (itemObj != null) {
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String item = itemObj.toString().toLowerCase();
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if (item.startsWith(str.toLowerCase()))
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v.add(model.getElementAt(k));
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else
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v1.add(model.getElementAt(k));
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} else
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v1.add(model.getElementAt(k));
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}
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}
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for (int i = 0; i < v1.size(); i++) {
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v.add(v1.get(i));
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}
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if (v.isEmpty())
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v.add(str);
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return v.toArray();
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}
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public void itemStateChanged(ItemEvent event) {
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if (event.getStateChange() == ItemEvent.SELECTED) {
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int caretPosition = editor.getCaretPosition();
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if (caretPosition != -1) {
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try {
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editor.moveCaretPosition(caretPosition);
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} catch (IllegalArgumentException ex) {
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ex.printStackTrace();
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}
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}
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}
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}
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}
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} |
