JTable中的JSpinner（時間）
[英]JSpinner (Time) in JTable
問題描述
我試圖在JTable中實現一個JSpinner的時間，乍一看它工作得很好，但是在失去單元格的焦點之后，已編輯的單元格被設置為“ Thu Jan 01 + time + UTC 1970”正確設置。 如何從時間中刪除日期？
這是我的孔SpinnerEditor.class，添加了一些注釋。
代碼：
public SpinnerEditor(String timeFormat) {
super(new JTextField());
// Default Time I want to Display (1 Hour)
Time date = new Time(3600000);
SpinnerDateModel timeModel = new SpinnerDateModel(date, null, null,Calendar.MINUTE);
spinner = new JSpinner(timeModel);
editorDate = new JSpinner.DateEditor(spinner, timeFormat);
spinner.setEditor(editorDate);
editorDate = ((JSpinner.DateEditor)spinner.getEditor());
// println result : "Thu Jan 01 01:00:00 UTC 1970"
System.out.println(editorDate.getTextField().getValue());
textField = editorDate.getTextField();
textField.addFocusListener( new FocusListener() {
public void focusGained( FocusEvent fe ) {
System.err.println("Got focus");
//textField.setSelectionStart(0);
//textField.setSelectionEnd(1);
SwingUtilities.invokeLater( new Runnable() {
public void run() {
if ( valueSet ) {
textField.setCaretPosition(1);
}
}
});
}
public void focusLost( FocusEvent fe ) {
}
});
textField.addActionListener( new ActionListener() {
public void actionPerformed( ActionEvent ae ) {
stopCellEditing();
}
});
}
// Prepares the spinner component and returns it.
public Component getTableCellEditorComponent(
JTable table, Object value, boolean isSelected, int row, int column
) {
if ( !valueSet ) {
spinner.setValue(value);
}
SwingUtilities.invokeLater( new Runnable() {
public void run() {
textField.requestFocus();
}
});
return spinner;
}
public boolean isCellEditable( EventObject eo ) {
System.err.println("isCellEditable");
if ( eo instanceof KeyEvent ) {
KeyEvent ke = (KeyEvent)eo;
System.err.println("key event: "+ke.getKeyChar());
textField.setText(String.valueOf(ke.getKeyChar()));
valueSet = true;
} else {
valueSet = false;
}
return true;
}
// Returns the spinners current value.
public Object getCellEditorValue() {
return spinner.getValue();
}
public boolean stopCellEditing() {
System.err.println("Stopping edit");
// after stopcellEditing is called the TextField is being set with the wrong values (Thu Jan 01 01:00:00 UTC 1970)
super.stopCellEditing();
try {
if( editorNumeric!=null)
{
editorNumeric.commitEdit();
spinner.commitEdit();
}
if( editorDate!=null)
{
SimpleDateFormat lFormat = new SimpleDateFormat("HH:mm");
textField.setText((spinner.getValue() != null) ? lFormat.format(spinner.getValue()) : "");
}
} catch ( java.text.ParseException e ) {
JOptionPane.showMessageDialog(null,
"Invalid value, discarding.");
}
return true;
}
2 個解決方案
解決方案1
3 2012-05-16 10:35:16
並非易事，對於ButtonGroup中的JRadioButtons（簡單的JButton和JSpinner）而言，有兩種方法
- 使用兩個JSpinners（對JButton ei的要求相同）和SpinnerListModel一起使用 ，在這種情況下非常希望減少JTable中提到的JButton所需的代碼
該代碼用於NumberInstance
import java.awt.*;
import java.util.EventObject;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.table.*;
public class SpinnerColumn extends AbstractCellEditor implements TableCellEditor, TableCellRenderer {
private static final long serialVersionUID = 1L;
private JSpinner editSpinner, renderSpinner;
private JTable table;
private String[] list;
private Border originalBorder;
public SpinnerColumn(JTable table, int column) {
editSpinner = new JSpinner();
renderSpinner = new JSpinner();
originalBorder = editSpinner.getBorder();
editSpinner.setBorder(new LineBorder(Color.BLUE));
this.table = table;
table.getColumnModel().getColumn(column).setCellEditor(this);
}
public SpinnerColumn(String[] list, JTable table, int column) {
editSpinner = new JSpinner();
editSpinner.setModel(new SpinnerListModel(list));
renderSpinner = new JSpinner();
originalBorder = editSpinner.getBorder();
editSpinner.setBorder(new LineBorder(Color.BLUE));
this.list = list;
this.table = table;
table.getColumnModel().getColumn(column).setCellEditor(this);
}
@Override
public Object getCellEditorValue() {
return editSpinner.getValue();
}
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected,
int row, int column) {
if (list != null) {
editSpinner.setValue(list[0]);
} else {
editSpinner.setValue(0);
}
if (value != null) {
editSpinner.setValue(value);
}
return editSpinner;
}
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int column) {
if (hasFocus) {
renderSpinner.setBorder(new LineBorder(Color.BLUE));
} else {
renderSpinner.setBorder(originalBorder);
}
// *** here's where we set the spinner's value
if (value == null) {
renderSpinner.setValue(0);
} else {
int intValue = ((Integer) value).intValue();
renderSpinner.setValue(intValue);
}
return renderSpinner;
}
@Override
public boolean isCellEditable(EventObject evt) {
return true;
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JFrame frame = new JFrame("SpinnerColumn");
JPanel panel = new JPanel(new GridLayout(1, 1));
JTable table = new JTable(5, 1);
SpinnerColumn spinnerColumn = new SpinnerColumn(table, 0);
table.setDefaultRenderer(Object.class, spinnerColumn);
panel.add(table);
frame.setContentPane(panel);
frame.pack();
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
});
}
}
- 通過在TableCellEditor中重新創建JSpinner
碼
import javax.swing.*;
import javax.swing.table.*;
import java.util.Date;
import java.util.Vector;
import java.awt.*;
import java.awt.event.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import javax.swing.UIManager.LookAndFeelInfo;
public class TableTestPanel extends JPanel {
private static final String[] COLUMN_NAMES = {"List ID", "Expiration Date", "Status", "Date Created"};
private static final DateFormat DATE_FORMAT = new SimpleDateFormat("dd/MM/yyyy");
private static final long serialVersionUID = 1L;
private static class StatusPanel extends JPanel {
private static final long serialVersionUID = 1L;
private JRadioButton theSingleOption;
private JRadioButton theMarriedOption;
private JRadioButton theDivorcedOption;
StatusPanel() {
super(new GridLayout(3, 1));
setOpaque(true);
ButtonGroup buttonGroup = new ButtonGroup();
theSingleOption = new JRadioButton("Single");
theSingleOption.setOpaque(false);
add(theSingleOption);
buttonGroup.add(theSingleOption);
theMarriedOption = new JRadioButton("Married");
theMarriedOption.setOpaque(false);
add(theMarriedOption);
buttonGroup.add(theMarriedOption);
theDivorcedOption = new JRadioButton("Divorced");
theDivorcedOption.setOpaque(false);
add(theDivorcedOption);
buttonGroup.add(theDivorcedOption);
}
public Status getStatus() {
if (theMarriedOption.isSelected()) {
return Status.MARRIED;
} else if (theDivorcedOption.isSelected()) {
return Status.DIVORCED;
} else {
return Status.SINGLE;
}
}
public void setStatus(Status status) {
if (status == Status.MARRIED) {
theMarriedOption.setSelected(true);
} else if (status == Status.DIVORCED) {
theDivorcedOption.setSelected(true);
} else {
theSingleOption.setSelected(true);
}
}
}
private static class Status {
static final Status SINGLE = new Status("Single");
static final Status MARRIED = new Status("Married");
static final Status DIVORCED = new Status("Divorced");
private final String myName; // for debug only
private Status(String name) {
myName = name;
}
@Override
public String toString() {
return myName;
}
}
private static class TableEntry {
private static int instanceNumber;
private Long theId;
private Date theExpirationDate;
private Status theStatus;
private Date theCreationDate;
TableEntry() {
instanceNumber++;
theId = new Long(instanceNumber);
theExpirationDate = new Date();
theStatus = Status.SINGLE;
theCreationDate = new Date();
}
TableEntry(Long anId, Date anExpirationDate, Status aStatus, Date aCreationDate) {
theId = anId;
theExpirationDate = anExpirationDate;
theStatus = aStatus;
theCreationDate = aCreationDate;
}
public Long getId() {
return theId;
}
public Date getExpirationDate() {
return theExpirationDate;
}
public Status getStatus() {
return theStatus;
}
public Date getCreationDate() {
return theCreationDate;
}
public void setId(Long anId) {
theId = anId;
}
public void setExpirationDate(Date anExpirationDate) {
theExpirationDate = anExpirationDate;
}
public void setStatus(Status aStatus) {
theStatus = aStatus;
}
public void setCreationDate(Date aCreationDate) {
theCreationDate = aCreationDate;
}
}
private static class MyTableModel extends AbstractTableModel {
private static final long serialVersionUID = 1L;
private Vector<Object> theEntries;
MyTableModel() {
theEntries = new Vector<Object>();
}
@SuppressWarnings("unchecked")
public void add(TableEntry anEntry) {
int index = theEntries.size();
theEntries.add(anEntry);
fireTableRowsInserted(index, index);
}
public void remove(int aRowIndex) {
if (aRowIndex < 0 || aRowIndex >= theEntries.size()) {
return;
}
theEntries.removeElementAt(aRowIndex);
fireTableRowsDeleted(aRowIndex, aRowIndex);
}
public int getRowCount() {
return theEntries.size();
}
@Override
public String getColumnName(int column) {
return COLUMN_NAMES[column];
}
@Override
public Class<?> getColumnClass(int columnIndex) {
switch (columnIndex) {
case 0:
return Long.class;
case 1:
return Date.class;
case 2:
return Status.class;
case 3:
return Date.class;
}
return Object.class;
}
@Override
public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
TableEntry entry = (TableEntry) theEntries.elementAt(rowIndex);
switch (columnIndex) {
case 0:
try {
entry.setId(new Long(Long.parseLong(aValue.toString())));
} catch (NumberFormatException nfe) {
return;
}
break;
case 1:
entry.setExpirationDate((Date) aValue);
break;
case 2:
entry.setStatus((Status) aValue);
break;
case 3:
entry.setCreationDate((Date) aValue);
break;
default:
return;
}
fireTableCellUpdated(rowIndex, columnIndex);
}
@Override
public boolean isCellEditable(int rowIndex, int columnIndex) {
return true;
}
@Override
public int getColumnCount() {
return 4;
}
@Override
public Object getValueAt(int rowIndex, int columnIndex) {
TableEntry entry = (TableEntry) theEntries.elementAt(rowIndex);
switch (columnIndex) {
case 0:
return entry.getId();
case 1:
return entry.getExpirationDate();
case 2:
return entry.getStatus();
case 3:
return entry.getCreationDate();
}
return null;
}
}
private static class DateRenderer extends DefaultTableCellRenderer {
private static final long serialVersionUID = 1L;
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
if (!(value instanceof Date)) {
return this;
}
setText(DATE_FORMAT.format((Date) value));
return this;
}
}
private static class DateEditor extends AbstractCellEditor implements TableCellEditor {
private static final long serialVersionUID = 1L;
private JSpinner theSpinner;
private Object value;
DateEditor() {
theSpinner = new JSpinner(new SpinnerDateModel());
theSpinner.setOpaque(true);
theSpinner.setEditor(new JSpinner.DateEditor(theSpinner, "dd/MM/yyyy"));
}
@Override
public Object getCellEditorValue() {
return theSpinner.getValue();
}
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
theSpinner.setValue(value);
if (isSelected) {
theSpinner.setBackground(table.getSelectionBackground());
} else {
theSpinner.setBackground(table.getBackground());
}
return theSpinner;
}
}
private static class StatusEditor extends AbstractCellEditor implements TableCellEditor {
private static final long serialVersionUID = 1L;
private StatusPanel theStatusPanel;
StatusEditor() {
theStatusPanel = new StatusPanel();
}
@Override
public Object getCellEditorValue() {
return theStatusPanel.getStatus();
}
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
theStatusPanel.setStatus((Status) value);
if (isSelected) {
theStatusPanel.setBackground(table.getSelectionBackground());
} else {
theStatusPanel.setBackground(table.getBackground());
}
return theStatusPanel;
}
}
private static class StatusRenderer extends StatusPanel implements TableCellRenderer {
private static final long serialVersionUID = 1L;
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
setStatus((Status) value);
if (isSelected) {
setBackground(table.getSelectionBackground());
} else {
setBackground(table.getBackground());
}
return this;
}
}
private MyTableModel theTableModel;
private JTable theTable;
public TableTestPanel() {
super(new BorderLayout(0, 5));
setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
theTableModel = new MyTableModel();
theTable = new JTable(theTableModel);
theTable.setDefaultEditor(Date.class, new DateEditor());
theTable.setDefaultRenderer(Date.class, new DateRenderer());
theTable.setDefaultEditor(Status.class, new StatusEditor());
theTable.setDefaultRenderer(Status.class, new StatusRenderer());
// comment out the two preceding lines and uncomment the following one if you want a more standard editor
// theTable.setDefaultEditor(Status.class, new DefaultCellEditor(new JComboBox(new Status[]{Status.SINGLE, Status.MARRIED, Status.DIVORCED})));
add(new JScrollPane(theTable), BorderLayout.CENTER);
JToolBar toolBar = new JToolBar();
toolBar.setFloatable(false);
toolBar.add(new AbstractAction("Add new") {
private static final long serialVersionUID = 1L;
@Override
public void actionPerformed(ActionEvent e) {
theTableModel.add(new TableEntry());
packTable();
}
});
toolBar.add(new AbstractAction("Remove") {
private static final long serialVersionUID = 1L;
@Override
public void actionPerformed(ActionEvent e) {
theTableModel.remove(theTable.getSelectedRow());
}
});
add(toolBar, BorderLayout.NORTH);
}
private void packTable() {
TableColumnModel columnModel = theTable.getColumnModel();
int columnCount = theTable.getColumnCount();
int rowCount = theTable.getRowCount();
int[][] preferredHeights = new int[columnCount][rowCount];
TableCellRenderer renderer;
Component comp;
for (int col = 0; col < columnCount; col++) {
renderer = columnModel.getColumn(col).getCellRenderer();
if (renderer == null) {
renderer = theTable.getDefaultRenderer(theTableModel.getColumnClass(col));
}
for (int row = 0; row < rowCount; row++) {
comp = renderer.getTableCellRendererComponent(theTable, theTableModel.getValueAt(row, col), false, false, row, col);
preferredHeights[col][row] = (int) comp.getPreferredSize().getHeight();
}
}
for (int row = 0; row < rowCount; row++) {
int pref = 0;
for (int col = 0; col < columnCount; col++) {
pref = Math.max(pref, preferredHeights[col][row]);
}
theTable.setRowHeight(row, pref);
}
}
public static void main(String[] args) {
try {
// UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if (info.getName().equals("Nimbus")) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception e1) {
e1.printStackTrace();
}
final JFrame frame = new JFrame("TestRadioButtonRenderer");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(new TableTestPanel());
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
frame.setSize(400, 300);
frame.setVisible(true);
}
});
}
}
解決方案2
1 已采納 2012-05-16 10:09:39
JTable日期值到jspinner
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