Java 防止TableCellEditor显示类';描述符
我有一只奇怪的虫子。我的歌曲列表在Java 防止TableCellEditor显示类';描述符,java,swing,jtable,tablecelleditor,defaulttablemodel,Java,Swing,Jtable,Tablecelleditor,Defaulttablemodel,我有一只奇怪的虫子。我的歌曲列表在JFrame的右侧。当我在任何项目上单击一次时,它会执行我想要的操作:将颜色设置为灰色。但是,双击它会显示自定义表单元格的类描述符 当我单击一次(正确) 当我点击两次(错误) 这是我的密码 PanelItemclass MainContextclass 封装层; 导入java.io.File; 导入java.util.Vector; 导入javax.swing.JFileChooser; 导入javax.swing.table.DefaultTableMod
JFrame
的右侧。当我在任何项目上单击一次时,它会执行我想要的操作:将颜色设置为灰色。但是,双击它会显示自定义表单元格的类描述符
当我单击一次(正确)
当我点击两次(错误)
这是我的密码
PanelItem
class
MainContext
class
封装层;
导入java.io.File;
导入java.util.Vector;
导入javax.swing.JFileChooser;
导入javax.swing.table.DefaultTableModel;
导入javax.swing.table.TableCellRenderer;
/**
*@author srnec
*/
公共类MainContext扩展了javax.swing.JFrame
{
私人球员;
公共上下文()
{
初始化组件();
mainPlayer=新的DierPlayer();
setCellEditor(新的PanelItemEditor());
songList.getColumnModel().getColumn(0.setCellRenderer)(新的PanelItem());
DefaultTableModel dtm=(DefaultTableModel)songList.getModel();
向量v=新向量();
v、 添加(新的PanelItem());
dtm.addRow(v);
v、 清除();
v、 添加(新的PanelItem());
dtm.addRow(v);
v、 清除();
v、 添加(新的PanelItem());
dtm.addRow(v);
}
@抑制警告(“未选中”)
//
私有组件(){
progressPanel=newjavax.swing.JPanel();
jScrollPane2=newjavax.swing.JScrollPane();
songList=newjavax.swing.JTable();
MainMenuBar=newjavax.swing.JMenuBar();
jMenu1=newjavax.swing.JMenu();
OpenMenuItem=newjavax.swing.JMenuItem();
jMenu2=newjavax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setboorder(javax.swing.BorderFactory.create蚀刻边界());
javax.swing.GroupLayout progressPanelLayout=新的javax.swing.GroupLayout(progressPanel);
progressPanel.setLayout(progressPanelLayout);
progressPanelLayout.setHorizontalGroup(
progressPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0,582,短。最大值)
);
progressPanelLayout.setVerticalGroup(
progressPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0,55,短最大值)
);
setModel(新的javax.swing.table.DefaultTableModel(
新对象[][]{
},
新字符串[]{
“标题1”
}
));
jScrollPane2.setViewportView(歌曲列表);
setText(“文件”);
setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O,java.awt.event.InputEvent.CTRL_掩码));
OpenMenuItem.setText(“打开”);
OpenMenuItem.addActionListener(新java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent evt){
OpenMenuItemActionPerformed(evt);
}
});
jMenu1.add(OpenMenuItem);
MainMenuBar.add(jMenu1);
jMenu2.setText(“编辑”);
MainMenuBar.add(jMenu2);
setJMenuBar(主菜单栏);
javax.swing.GroupLayout=newjavax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(布局);
layout.setHorizontalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(progressPanel,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u VALUE)
.addGroup(layout.createSequentialGroup()
.addComponent(jScrollPane2,javax.swing.GroupLayout.PREFERRED\u SIZE,179,javax.swing.GroupLayout.PREFERRED\u SIZE)
.addGap(0,0,短.MAX_值))
);
layout.setVerticalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING,layout.createSequentialGroup()
.addComponent(jScrollPane2,javax.swing.GroupLayout.DEFAULT\u SIZE,488,Short.MAX\u值)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(progressPanel,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE))
);
包装();
}//
私有void OpenMenuItemActionPerformed(java.awt.event.ActionEvent evt){
JFileChooser chooser=新的JFileChooser();
选择器。setMultiSelectionEnabled(真);
chooser.showOpenDialog(此);
File[]files=chooser.getSelectedFiles();
}
/**
*@param指定命令行参数
*/
公共静态void main(字符串参数[]){
/*设置Nimbus的外观和感觉*/
//
/*如果Nimbus(在JavaSE6中引入)不可用,请使用默认的外观。
*详情请参阅http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
试一试{
for(javax.swing.UIManager.LookAndFeelInfo:javax.swing.UIManager.getInstalledLookAndFeels()){
if(“Nimbus”.equals(info.getName())){
setLookAndFeel(info.getClassName());
打破
}
}
}捕获(ClassNotFoundException ex){
getLogger(MainContext.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}catch(实例化异常){
getLogger(MainContext.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}捕获(非法访问例外)
package dierplayer;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;
/**
* @author srnec
*/
public class PanelItem extends javax.swing.JPanel implements TableCellRenderer {
private Thread focusThread;
private int startPosX, startPosY;
public PanelItem() {
initComponents();
this.setPreferredSize(new Dimension(20, 30));
startPosX = songLabel.getX();
startPosY = songLabel.getY();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
songLabel = new javax.swing.JLabel();
songLabel.setText("Song");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(songLabel)
.addGap(0, 88, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(songLabel)
.addGap(0, 45, Short.MAX_VALUE))
);
}// </editor-fold>
// Variables declaration - do not modify
private javax.swing.JLabel songLabel;
// End of variables declaration
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
this.setSelected(isSelected);
return this;
}
public void setSelected(boolean isSelected) {
if (isSelected) {
this.setBackground(Color.GRAY);
} else {
this.setBackground(Color.WHITE);
}
}
}
package dierplayer;
import java.awt.Component;
import java.util.EventObject;
import javax.swing.JTable;
import javax.swing.event.CellEditorListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
/**
* @author srnec
*/
public class PanelItemEditor extends DefaultTableModel implements TableCellEditor{
@Override
public boolean isCellEditable(int row,int column)
{
return false;
}
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public Object getCellEditorValue() {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public boolean isCellEditable(EventObject anEvent) {
return false;
}
@Override
public boolean shouldSelectCell(EventObject anEvent) {
return true;
}
@Override
public boolean stopCellEditing() {
return true;
}
@Override
public void cancelCellEditing() {
}
@Override
public void addCellEditorListener(CellEditorListener l) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public void removeCellEditorListener(CellEditorListener l) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
package dierplayer;
import java.io.File;
import java.util.Vector;
import javax.swing.JFileChooser;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
/**
* @author srnec
*/
public class MainContext extends javax.swing.JFrame
{
private DierPlayer mainPlayer;
public MainContext()
{
initComponents();
mainPlayer=new DierPlayer();
songList.setCellEditor(new PanelItemEditor());
songList.getColumnModel().getColumn(0).setCellRenderer(new PanelItem());
DefaultTableModel dtm = (DefaultTableModel) songList.getModel();
Vector v = new Vector();
v.add(new PanelItem());
dtm.addRow(v);
v.clear();
v.add(new PanelItem());
dtm.addRow(v);
v.clear();
v.add(new PanelItem());
dtm.addRow(v);
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
progressPanel = new javax.swing.JPanel();
jScrollPane2 = new javax.swing.JScrollPane();
songList = new javax.swing.JTable();
MainMenuBar = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
OpenMenuItem = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
progressPanel.setBorder(javax.swing.BorderFactory.createEtchedBorder());
javax.swing.GroupLayout progressPanelLayout = new javax.swing.GroupLayout(progressPanel);
progressPanel.setLayout(progressPanelLayout);
progressPanelLayout.setHorizontalGroup(
progressPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 582, Short.MAX_VALUE)
);
progressPanelLayout.setVerticalGroup(
progressPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 55, Short.MAX_VALUE)
);
songList.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
},
new String [] {
"Title 1"
}
));
jScrollPane2.setViewportView(songList);
jMenu1.setText("File");
OpenMenuItem.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O, java.awt.event.InputEvent.CTRL_MASK));
OpenMenuItem.setText("Open");
OpenMenuItem.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
OpenMenuItemActionPerformed(evt);
}
});
jMenu1.add(OpenMenuItem);
MainMenuBar.add(jMenu1);
jMenu2.setText("Edit");
MainMenuBar.add(jMenu2);
setJMenuBar(MainMenuBar);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(progressPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(layout.createSequentialGroup()
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 179, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 488, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(progressPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
);
pack();
}// </editor-fold>
private void OpenMenuItemActionPerformed(java.awt.event.ActionEvent evt) {
JFileChooser chooser = new JFileChooser();
chooser.setMultiSelectionEnabled(true);
chooser.showOpenDialog(this);
File[] files = chooser.getSelectedFiles();
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(MainContext.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(MainContext.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(MainContext.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(MainContext.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new MainContext().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JMenuBar MainMenuBar;
private javax.swing.JMenuItem OpenMenuItem;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JPanel progressPanel;
private javax.swing.JTable songList;
// End of variables declaration
}
},
new String [] {
"Title 1"
}
);
}
public boolean isCellEditable(int row,int column){
return false;
}
}
DefaultTableModel model = new DefaultTableModel(new Object[]{"Songs list"}, 0) {
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
table.setBackground(Color.WHITE);
table.setSelectionBackground(Color.GRAY);
table.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if(e.isPopupTrigger()) {
// show JPopupMenu here
} else if(e.getClickCount() >= 2){
// play the song here
}
}
});
import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.SwingUtilities;
import javax.swing.SwingWorker;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
public class Demo {
private JTable table;
private IPlayableSong currentPlayingSong;
private void createAndShowGUI() {
DefaultTableModel model = new DefaultTableModel(new Object[]{"Songs list"}, 0) {
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
table = new JTable(model);
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
table.setDefaultRenderer(Object.class, new DefaultTableCellRenderer() {
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
Color background = isSelected ? Color.GRAY : Color.WHITE;
setBackground(background);
if(value instanceof Song) {
Song song = (Song)value;
setText(song.getTitle());
}
return this;
}
});
table.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if(e.isPopupTrigger()) {
// show JPopupMenu here
} else if(e.getClickCount() >= 2){
int row = table.rowAtPoint(e.getPoint());
int column = table.columnAtPoint(e.getPoint());
if(currentPlayingSong != null) {
currentPlayingSong.stop();
}
IPlayableSong song = (IPlayableSong)table.getValueAt(row, column);
song.play();
currentPlayingSong = song;
}
}
});
JMenuItem addDir = new JMenuItem("Add dir...");
addDir.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
addSongs();
}
});
JMenu fileMenu = new JMenu("File");
fileMenu.add(addDir);
JMenuBar menuBar = new JMenuBar();
menuBar.add(fileMenu);
JFrame frame = new JFrame("Demo");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setJMenuBar(menuBar);
frame.getContentPane().add(new JScrollPane(table));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private void addSongs() {
final List<File> fileList = new ArrayList<>();
File file = new File(System.getProperty("user.dir"));
JFileChooser fileChooser = new JFileChooser(file);
fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
fileChooser.setMultiSelectionEnabled(true);
fileChooser.setAcceptAllFileFilterUsed(false);
fileChooser.setDialogTitle("Please select a directory");
if(fileChooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION && fileChooser.getSelectedFile().isDirectory()){
File selectedDirectory = fileChooser.getSelectedFile();
FilenameFilter filenameFilter = new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.toUpperCase().endsWith("MP3");
}
};
fileList.addAll(Arrays.asList(selectedDirectory.listFiles(filenameFilter)));
DefaultTableModel model = (DefaultTableModel)table.getModel();
model.setRowCount(0);
SwingWorker<Void, Song> worker = new SwingWorker<Void, Song>() {
@Override
protected Void doInBackground() throws Exception {
for(File aFile : fileList) {
Song song = new Song(aFile, aFile.getName());
publish(song);
}
return null;
}
@Override
protected void process(List<Song> chunks) {
DefaultTableModel model = (DefaultTableModel)table.getModel();
for(Song song: chunks) {
model.addRow(new Object[]{song});
}
}
};
worker.execute();
}
}
public interface IPlayableSong {
public void play();
public void stop();
}
public class Song implements IPlayableSong {
private final String title;
private final File file;
public Song(File file, String title){
this.file = file;
this.title = title;
}
public String getTitle() {
return title;
}
@Override
public void play() {
String message = String.format("Not supported yet! Trying to play %s", title);
throw new UnsupportedOperationException(message);
}
@Override
public void stop() {
String message = String.format("Not supported yet! Trying to stop %s", title);
throw new UnsupportedOperationException(message);
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new Demo().createAndShowGUI();
}
});
}
}