Java JTable Autosuggest抛出。IllegalComponentStateException
我已经为Java JTable Autosuggest抛出。IllegalComponentStateException,java,swing,jtable,jtextfield,autosuggest,Java,Swing,Jtable,Jtextfield,Autosuggest,我已经为JTextField实现了一个AutoSuggest。它对JTextField工作正常。但是当我尝试将它用于JTableCellEditor时,它会 Exception in thread "AWT-EventQueue-0" java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location at java.awt.Component
JTextField
实现了一个AutoSuggest。它对JTextField
工作正常。但是当我尝试将它用于JTable
CellEditor时,它会
Exception in thread "AWT-EventQueue-0" java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location
at java.awt.Component.getLocationOnScreen_NoTreeLock(Component.java:2048)
at java.awt.Component.getLocationOnScreen(Component.java:2022)
at javax.swing.JPopupMenu.show(JPopupMenu.java:942)
AutoSuggestTable.java
import java.awt.event.ActionEvent;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Objects;
import javax.swing.AbstractAction;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.plaf.basic.BasicComboPopup;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
/**
*
* @author Phystem
* @param <T>
*/
public class AutoSuggestTable<T> extends JTextField {
private List<T> items;
private final JComboBox combobox = new JComboBox();
private final DefaultComboBoxModel comboBoxModel;
private final BasicComboPopup suggestPopup;
public AutoSuggestTable() {
this(new ArrayList<T>());
}
public AutoSuggestTable(List<T> items) {
this.items = items;
Collections.sort(items, new Compare());
comboBoxModel = new DefaultComboBoxModel();
combobox.setModel(comboBoxModel);
suggestPopup = new BasicComboPopup(combobox);
install();
}
private void addToSuggestList(List<Object> list) {
comboBoxModel.removeAllElements();
if (list.isEmpty()) {
suggestPopup.hide();
} else {
for (Object elm : list) {
comboBoxModel.addElement(elm);
}
suggestPopup.show(this, 0, getHeight());
suggestPopup.setPopupSize(getWidth(), suggestPopup.getHeight());
}
}
public void hidePopup() {
suggestPopup.hide();
}
/**
* The value to search for I'm checking for case insensitive contains Modify
* it if you want
*
* @param value
*/
private void filter(String value) {
List<Object> tempList = new ArrayList<>();
for (Object item : items) {
if (item.toString().toLowerCase().contains(value.toLowerCase())) {
tempList.add(item);
}
}
addToSuggestList(tempList);
}
public List<T> getItems() {
return items;
}
public void withItems(List<T> items) {
this.items = items;
Collections.sort(items, new Compare());
}
public void addItem(T item) {
items.add(item);
}
public void clearItems() {
items.clear();
}
private void install() {
setBorder(null);
setFocusTraversalKeysEnabled(false);
getDocument().addDocumentListener(new DocumentListener() {
@Override
public void insertUpdate(DocumentEvent e) {
onTextChange(e);
}
@Override
public void removeUpdate(DocumentEvent e) {
onTextChange(e);
}
@Override
public void changedUpdate(DocumentEvent e) {
onTextChange(e);
}
});
getInputMap().put(KeyStroke.getKeyStroke("ENTER"), "commit");
getActionMap().put("commit", new AbstractAction() {
@Override
public void actionPerformed(ActionEvent e) {
setSelectedItemFromList();
}
});
getInputMap().put(KeyStroke.getKeyStroke("DOWN"), "traversedown");
getActionMap().put("traversedown", new AbstractAction() {
@Override
public void actionPerformed(ActionEvent e) {
traversedown();
}
});
getInputMap().put(KeyStroke.getKeyStroke("UP"), "traverseup");
getActionMap().put("traverseup", new AbstractAction() {
@Override
public void actionPerformed(ActionEvent e) {
traverseup();
}
});
}
private void setSelectedItemFromList() {
if (comboBoxModel.getSize() > 0) {
setText(suggestPopup.getList().getSelectedValue().toString());
suggestPopup.hide();
}
}
private void traverseup() {
if (comboBoxModel.getSize() > 0) {
int index = suggestPopup.getList().getSelectedIndex() - 1;
if (index >= 0) {
suggestPopup.getList().setSelectedIndex(index);
suggestPopup.getList().ensureIndexIsVisible(index);
}
}
}
private void traversedown() {
if (comboBoxModel.getSize() > 0) {
int index = suggestPopup.getList().getSelectedIndex() + 1;
if (index < comboBoxModel.getSize()) {
suggestPopup.getList().setSelectedIndex(index);
suggestPopup.getList().ensureIndexIsVisible(index);
}
}
}
private void onTextChange(DocumentEvent e) {
Document source = e.getDocument();
int length = source.getLength();
try {
filter(source.getText(0, length));
} catch (BadLocationException be) {
System.out.println("Contents: Unknown");
}
}
private static class Compare implements Comparator {
@Override
public int compare(Object o1, Object o2) {
return Objects.toString(o1, "").compareTo(Objects.toString(o2, ""));
}
}
}
导入java.awt.event.ActionEvent;
导入java.util.ArrayList;
导入java.util.Collections;
导入java.util.Comparator;
导入java.util.List;
导入java.util.Objects;
导入javax.swing.AbstractAction;
导入javax.swing.DefaultComboxModel;
导入javax.swing.JComboBox;
导入javax.swing.JTextField;
导入javax.swing.KeyStroke;
导入javax.swing.event.DocumentEvent;
导入javax.swing.event.DocumentListener;
导入javax.swing.plaf.basic.basicmbopopup;
导入javax.swing.text.BadLocationException;
导入javax.swing.text.Document;
/**
*
*@Phystem
*@param
*/
公共类AutoSuggestTable扩展了JTextField{
私人清单项目;
私有最终JComboBox组合框=新JComboBox();
私有最终DefaultComboxModel ComboxModel;
私有最终基本mbopopup suggestPopup;
公共自动建议表(){
这个(新的ArrayList());
}
公共自动建议表(列表项){
这个项目=项目;
Collections.sort(items,newcompare());
comboBoxModel=新的DefaultComboxModel();
combobox.setModel(comboBoxModel);
suggestPopup=新建基本mbopopup(组合框);
安装();
}
私有void addToSuggestList(列表){
comboBoxModel.removeAllElements();
if(list.isEmpty()){
suggestPopup.hide();
}否则{
对于(对象elm:list){
comboBoxModel.addElement(elm);
}
show(this,0,getHeight());
suggestPopup.setPopusSize(getWidth(),suggestPopup.getHeight());
}
}
public void hidePopup(){
suggestPopup.hide();
}
/**
*我正在检查的不区分大小写的搜索值包含Modify
*如果你愿意的话,我会的
*
*@param值
*/
专用无效筛选器(字符串值){
List templast=new ArrayList();
用于(对象项:项){
if(item.toString().toLowerCase().contains(value.toLowerCase())){
圣堂武士。添加(物品);
}
}
addToSuggestList(圣殿骑士);
}
公共列表getItems(){
退货项目;
}
带项目的公共作废(列表项目){
这个项目=项目;
Collections.sort(items,newcompare());
}
公共无效附加项(T项){
项目。添加(项目);
}
公共物品{
items.clear();
}
私有void安装(){
订单号(空);
setFocusTraversalKeysEnabled(false);
getDocument().addDocumentListener(新DocumentListener()){
@凌驾
公共作废插入更新(文档事件e){
语境变化(e);
}
@凌驾
公共作废移除更新(文档事件e){
语境变化(e);
}
@凌驾
公共作废更改日期(记录事件e){
语境变化(e);
}
});
getInputMap();
getActionMap().put(“提交”,新的AbstractAction()){
@凌驾
已执行的公共无效操作(操作事件e){
setSelectedItemFromList();
}
});
getInputMap();
getActionMap().put(“traversedown”,新的AbstractAction()){
@凌驾
已执行的公共无效操作(操作事件e){
横向向下();
}
});
getInputMap();
getActionMap().put(“traverseup”,新的AbstractAction()){
@凌驾
已执行的公共无效操作(操作事件e){
traverseup();
}
});
}
私有void setSelectedItemFromList(){
如果(comboBoxModel.getSize()>0){
setText(suggestPopup.getList().getSelectedValue().toString());
suggestPopup.hide();
}
}
私有void transverseup(){
如果(comboBoxModel.getSize()>0){
int index=suggestPopup.getList().getSelectedIndex()-1;
如果(索引>=0){
suggestPopup.getList().setSelectedIndex(索引);
suggestPopup.getList().ensureIndexIsVisible(索引);
}
}
}
私有void transversedown(){
如果(comboBoxModel.getSize()>0){
int index=suggestPopup.getList().getSelectedIndex()+1;
if(索引
MCVE
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.util.ArrayList;
import java.util.List;
import javax.swing.DefaultCellEditor;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
/**
*
* @author Phystem
*/
public class TestClass {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JFrame frame = new JFrame("AutoSuggest Test");
JTable table = getTable();
AutoSuggestTable autoSuggest = new AutoSuggestTable(getSampleList());
JPanel panel = new JPanel(new BorderLayout());
panel.add(new JScrollPane(table), BorderLayout.CENTER);
panel.add(autoSuggest, BorderLayout.NORTH);
frame.add(panel);
table.getColumnModel().getColumn(0).setCellEditor(new DefaultCellEditor(autoSuggest));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
});
}
private static List<String> getSampleList() {
List<String> list = new ArrayList<>();
list.add("Apples");
list.add("Bananas");
list.add("Grapes");
list.add("Oranges");
list.add("PineApples");
list.add("Watermelon");
list.add("Lemon");
return list;
}
private static JTable getTable() {
DefaultTableModel model = new DefaultTableModel();
model.addColumn("Test1");
model.addColumn("Test2");
for (int i = 0; i < 5; i++) {
model.addRow(new Object[]{"xx" + i, "yy" + i});
}
JTable table = new JTable(model);
return table;
}
}
导入java.awt.BorderLayout;
导入java.awt.EventQueue;
导入java.util.ArrayList;
导入java.util.List;
导入javax.swing.DefaultCellEditor;
导入javax.swing.JFrame;
导入javax.swing.JPanel;
导入javax.swing.JScrollPane;
导入javax.swing.JTable;
导入javax.swing.table.DefaultTableModel;
/**
*
*@Phystem
*/
公共类TestClass{
公共静态void main(字符串[]args){
invokeLater(新的Runnable(){
@凌驾
公开募捐{
JFrame=新JFrame(“自动建议测试”);
JTable table=getTable();
AutoSuggestTable autoSuggest=新的AutoSuggestTable(getSampleList());
JPanel panel=newjpanel(newborderlayout());
添加(新的JScrollPane(表),BorderLayout.CENTER);
panel.add(自动建议,BorderLayout.NORTH);
框架。添加(面板);
表.getColumnModel().getColumn(0).setCellEdito
if (isShowing()) {
suggestPopup.show(this, 0, getHeight());
suggestPopup.setPopupSize(getWidth(), suggestPopup.getHeight());
}