所以我有一个程序，它接收用户的某些日期（带有组合框和旋转器的gui）和另一个显示日历的日期。我希望用户在gui中输入的日期在我的日历上突出显示... help !!!
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class CalendarProgram{
static JLabel lblMonth, lblYear;
static JButton btnPrev, btnNext;
static JTable tblCalendar;
static JComboBox cmbYear;
static JFrame frmMain;
static Container pane;
static DefaultTableModel mtblCalendar; //Table model
static JScrollPane stblCalendar; //The scrollpane
static JPanel pnlCalendar;
static int realYear, realMonth, realDay, currentYear, currentMonth;
public static void main (String args[]){
//Look and feel
try {UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());}
catch (ClassNotFoundException e) {}
catch (InstantiationException e) {}
catch (IllegalAccessException e) {}
catch (UnsupportedLookAndFeelException e) {}
//Prepare frame
frmMain = new JFrame ("Gestionnaire de clients"); //Create frame
frmMain.setSize(330, 375); //Set size to 400x400 pixels
pane = frmMain.getContentPane(); //Get content pane
pane.setLayout(null); //Apply null layout
frmMain.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Close when X is clicked
//Create controls
lblMonth = new JLabel ("January");
lblYear = new JLabel ("Change year:");
cmbYear = new JComboBox();
btnPrev = new JButton ("<<");
btnNext = new JButton (">>");
mtblCalendar = new DefaultTableModel(){public boolean isCellEditable(int rowIndex, int mColIndex){return false;}};
tblCalendar = new JTable(mtblCalendar);
stblCalendar = new JScrollPane(tblCalendar);
pnlCalendar = new JPanel(null);
//Set border
pnlCalendar.setBorder(BorderFactory.createTitledBorder("Calendar"));
//Register action listeners
btnPrev.addActionListener(new btnPrev_Action());
btnNext.addActionListener(new btnNext_Action());
cmbYear.addActionListener(new cmbYear_Action());
//Add controls to pane
pane.add(pnlCalendar);
pnlCalendar.add(lblMonth);
pnlCalendar.add(lblYear);
pnlCalendar.add(cmbYear);
pnlCalendar.add(btnPrev);
pnlCalendar.add(btnNext);
pnlCalendar.add(stblCalendar);
//Set bounds
pnlCalendar.setBounds(0, 0, 320, 335);
lblMonth.setBounds(160-lblMonth.getPreferredSize().width/2, 25, 100, 25);
lblYear.setBounds(10, 305, 80, 20);
cmbYear.setBounds(230, 305, 80, 20);
btnPrev.setBounds(10, 25, 50, 25);
btnNext.setBounds(260, 25, 50, 25);
stblCalendar.setBounds(10, 50, 300, 250);
//Make frame visible
frmMain.setResizable(false);
frmMain.setVisible(true);
//Get real month/year
GregorianCalendar cal = new GregorianCalendar(); //Create calendar
realDay = cal.get(GregorianCalendar.DAY_OF_MONTH); //Get day
realMonth = cal.get(GregorianCalendar.MONTH); //Get month
realYear = cal.get(GregorianCalendar.YEAR); //Get year
currentMonth = realMonth; //Match month and year
currentYear = realYear;
//Add headers
String[] headers = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"}; //All headers
for (int i=0; i<7; i++){
mtblCalendar.addColumn(headers[i]);
}
tblCalendar.getParent().setBackground(tblCalendar.getBackground()); //Set background
//No resize/reorder
tblCalendar.getTableHeader().setResizingAllowed(false);
tblCalendar.getTableHeader().setReorderingAllowed(false);
//Single cell selection
tblCalendar.setColumnSelectionAllowed(true);
tblCalendar.setRowSelectionAllowed(true);
tblCalendar.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
//Set row/column count
tblCalendar.setRowHeight(38);
mtblCalendar.setColumnCount(7);
mtblCalendar.setRowCount(6);
//Populate table
for (int i=realYear-100; i<=realYear+100; i++){
cmbYear.addItem(String.valueOf(i));
}
//Refresh calendar
refreshCalendar (realMonth, realYear); //Refresh calendar
}
public static void refreshCalendar(int month, int year){
//Variables
String[] months = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
int nod, som; //Number Of Days, Start Of Month
//Allow/disallow buttons
btnPrev.setEnabled(true);
btnNext.setEnabled(true);
if (month == 0 && year <= realYear-10){btnPrev.setEnabled(false);} //Too early
if (month == 11 && year >= realYear+100){btnNext.setEnabled(false);} //Too late
lblMonth.setText(months[month]); //Refresh the month label (at the top)
lblMonth.setBounds(160-lblMonth.getPreferredSize().width/2, 25, 180, 25); //Re-align label with calendar
cmbYear.setSelectedItem(String.valueOf(year)); //Select the correct year in the combo box
//Clear table
for (int i=0; i<6; i++){
for (int j=0; j<7; j++){
mtblCalendar.setValueAt(null, i, j);
}
}
//Get first day of month and number of days
GregorianCalendar cal = new GregorianCalendar(year, month, 1);
nod = cal.getActualMaximum(GregorianCalendar.DAY_OF_MONTH);
som = cal.get(GregorianCalendar.DAY_OF_WEEK);
//Draw calendar
for (int i=1; i<=nod; i++){
int row = new Integer((i+som-2)/7);
int column = (i+som-2)%7;
mtblCalendar.setValueAt(i, row, column);
}
//Apply renderers
tblCalendar.setDefaultRenderer(tblCalendar.getColumnClass(0), new tblCalendarRenderer());
}
static class tblCalendarRenderer extends DefaultTableCellRenderer{
public Component getTableCellRendererComponent (JTable table, Object value, boolean selected, boolean focused, int row, int column){
super.getTableCellRendererComponent(table, value, selected, focused, row, column);
if (column == 0 || column == 6){ //Week-end
setBackground(new Color(255, 220, 220));
}
else{ //Week
setBackground(new Color(255, 255, 255));
}
if (value != null){
if (Integer.parseInt(value.toString()) == realDay && currentMonth == realMonth && currentYear == realYear){ //Today
setBackground(new Color(220, 220, 255));
}
}
setBorder(null);
setForeground(Color.black);
return this;
}
}
static class btnPrev_Action implements ActionListener{
public void actionPerformed (ActionEvent e){
if (currentMonth == 0){ //Back one year
currentMonth = 11;
currentYear -= 1;
}
else{ //Back one month
currentMonth -= 1;
}
refreshCalendar(currentMonth, currentYear);
}
}
static class btnNext_Action implements ActionListener{
public void actionPerformed (ActionEvent e){
if (currentMonth == 11){ //Foward one year
currentMonth = 0;
currentYear += 1;
}
else{ //Foward one month
currentMonth += 1;
}
refreshCalendar(currentMonth, currentYear);
}
}
static class cmbYear_Action implements ActionListener{
public void actionPerformed (ActionEvent e){
if (cmbYear.getSelectedItem() != null){
String b = cmbYear.getSelectedItem().toString();
currentYear = Integer.parseInt(b);
refreshCalendar(currentMonth, currentYear);
}
}
}
}
答案 0 :(得分：0)
这是用户输入日期的方式....
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package notifyme;
import java.awt.*;
import java.awt.event.*;
import java.util.Calendar;
import java.text.SimpleDateFormat;
import javax.swing.*;
import javax.swing.event.PopupMenuListener;
import javax.swing.event.PopupMenuEvent;
import javax.swing.plaf.ComboBoxUI;
import javax.swing.plaf.basic.ComboPopup;
import javax.swing.plaf.metal.MetalComboBoxUI;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;
import javax.swing.border.EmptyBorder;
import com.sun.java.swing.plaf.motif.MotifComboBoxUI;
import com.sun.java.swing.plaf.windows.WindowsComboBoxUI;
/**
*
* @author hermela
*/
public class DateComboBox extends JComboBox {
protected SimpleDateFormat dateFormat = new SimpleDateFormat("MMM d, yyyy");
public void setDateFormat(SimpleDateFormat dateFormat) {
this.dateFormat = dateFormat;
}
public void setSelectedItem(Object item) {
// Could put extra logic here or in renderer when item is instanceof Date, Calendar, or String
// Dont keep a list ... just the currently selected item
removeAllItems(); // hides the popup if visible
addItem(item);
super.setSelectedItem(item);
}
public void updateUI() {
ComboBoxUI cui = (ComboBoxUI) UIManager.getUI(this);
if (cui instanceof MetalComboBoxUI) {
cui = new MetalDateComboBoxUI();
} else if (cui instanceof MotifComboBoxUI) {
cui = new MotifDateComboBoxUI();
} else if (cui instanceof WindowsComboBoxUI) {
cui = new WindowsDateComboBoxUI();
}
setUI(cui);
}
// Inner classes are used purely to keep DateComboBox component in one file
//////////////////////////////////////////////////////////////
// UI Inner classes -- one for each supported Look and Feel
//////////////////////////////////////////////////////////////
class MetalDateComboBoxUI extends MetalComboBoxUI {
protected ComboPopup createPopup() {
return new DatePopup( comboBox );
}
}
class WindowsDateComboBoxUI extends WindowsComboBoxUI {
protected ComboPopup createPopup() {
return new DatePopup( comboBox );
}
}
class MotifDateComboBoxUI extends MotifComboBoxUI {
protected ComboPopup createPopup() {
return new DatePopup( comboBox );
}
}
//////////////////////////////////////////////////////////////
// DatePopup inner class
//////////////////////////////////////////////////////////////
class DatePopup implements ComboPopup, MouseMotionListener,
MouseListener, KeyListener, PopupMenuListener {
protected JComboBox comboBox;
protected Calendar calendar;
protected JPopupMenu popup;
protected JLabel monthLabel;
protected JPanel days = null;
protected SimpleDateFormat monthFormat = new SimpleDateFormat("MMM yyyy");
protected Color selectedBackground;
protected Color selectedForeground;
protected Color background;
protected Color foreground;
public DatePopup(JComboBox comboBox) {
this.comboBox = comboBox;
calendar = Calendar.getInstance();
// check Look and Feel
background = UIManager.getColor("ComboBox.background");
foreground = UIManager.getColor("ComboBox.foreground");
selectedBackground = UIManager.getColor("ComboBox.selectionBackground");
selectedForeground = UIManager.getColor("ComboBox.selectionForeground");
initializePopup();
}
//========================================
// begin ComboPopup method implementations
//
public void show() {
try {
// if setSelectedItem() was called with a valid date, adjust the calendar
calendar.setTime( dateFormat.parse( comboBox.getSelectedItem().toString() ) );
} catch (Exception e) {}
updatePopup();
popup.show(comboBox, 0, comboBox.getHeight());
}
public void hide() {
popup.setVisible(false);
}
protected JList list = new JList();
public JList getList() {
return list;
}
public MouseListener getMouseListener() {
return this;
}
public MouseMotionListener getMouseMotionListener() {
return this;
}
public KeyListener getKeyListener() {
return this;
}
public boolean isVisible() {
return popup.isVisible();
}
public void uninstallingUI() {
popup.removePopupMenuListener(this);
}
//
// end ComboPopup method implementations
//======================================
//===================================================================
// begin Event Listeners
//
// MouseListener
public void mousePressed( MouseEvent e ) {}
public void mouseReleased( MouseEvent e ) {}
// something else registered for MousePressed
public void mouseClicked(MouseEvent e) {
if ( !SwingUtilities.isLeftMouseButton(e) )
return;
if ( !comboBox.isEnabled() )
return;
if ( comboBox.isEditable() ) {
comboBox.getEditor().getEditorComponent().requestFocus();
} else {
comboBox.requestFocus();
}
togglePopup();
}
protected boolean mouseInside = false;
public void mouseEntered(MouseEvent e) {
mouseInside = true;
}
public void mouseExited(MouseEvent e) {
mouseInside = false;
}
// MouseMotionListener
public void mouseDragged(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
// KeyListener
public void keyPressed(KeyEvent e) {}
public void keyTyped(KeyEvent e) {}
public void keyReleased( KeyEvent e ) {
if ( e.getKeyCode() == KeyEvent.VK_SPACE ||
e.getKeyCode() == KeyEvent.VK_ENTER ) {
togglePopup();
}
}
/**
* Variables hideNext and mouseInside are used to
* hide the popupMenu by clicking the mouse in the JComboBox
*/
public void popupMenuCanceled(PopupMenuEvent e) {}
protected boolean hideNext = false;
public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
hideNext = mouseInside;
}
public void popupMenuWillBecomeVisible(PopupMenuEvent e) {}
//
// end Event Listeners
//=================================================================
//===================================================================
// begin Utility methods
//
protected void togglePopup() {
if ( isVisible() || hideNext ) {
hide();
} else {
show();
}
hideNext = false;
}
//
// end Utility methods
//=================================================================
// Note *** did not use JButton because Popup closes when pressed
protected JLabel createUpdateButton(final int field, final int amount) {
final JLabel label = new JLabel();
final Border selectedBorder = new EtchedBorder();
final Border unselectedBorder = new EmptyBorder(selectedBorder.getBorderInsets(new JLabel()));
label.setBorder(unselectedBorder);
label.setForeground(foreground);
label.addMouseListener(new MouseAdapter() {
public void mouseReleased(MouseEvent e) {
calendar.add(field, amount);
updatePopup();
}
public void mouseEntered(MouseEvent e) {
label.setBorder(selectedBorder);
}
public void mouseExited(MouseEvent e) {
label.setBorder(unselectedBorder);
}
});
return label;
}
protected void initializePopup() {
JPanel header = new JPanel(); // used Box, but it wasn't Opaque
header.setLayout(new BoxLayout(header, BoxLayout.X_AXIS));
header.setBackground(background);
header.setOpaque(true);
JLabel label;
label = createUpdateButton(Calendar.YEAR, -1);
label.setText("<<");
label.setToolTipText("Previous Year");
header.add(Box.createHorizontalStrut(12));
header.add(label);
header.add(Box.createHorizontalStrut(12));
label = createUpdateButton(Calendar.MONTH, -1);
label.setText("<");
label.setToolTipText("Previous Month");
header.add(label);
monthLabel = new JLabel("", JLabel.CENTER);
monthLabel.setForeground(foreground);
header.add(Box.createHorizontalGlue());
header.add(monthLabel);
header.add(Box.createHorizontalGlue());
label = createUpdateButton(Calendar.MONTH, 1);
label.setText(">");
label.setToolTipText("Next Month");
header.add(label);
label = createUpdateButton(Calendar.YEAR, 1);
label.setText(">>");
label.setToolTipText("Next Year");
header.add(Box.createHorizontalStrut(12));
header.add(label);
header.add(Box.createHorizontalStrut(12));
popup = new JPopupMenu();
popup.setBorder(BorderFactory.createLineBorder(Color.black));
popup.setLayout(new BorderLayout());
popup.setBackground(background);
popup.addPopupMenuListener(this);
popup.add(BorderLayout.NORTH, header);
}
// update the Popup when either the month or the year of the calendar has been changed
protected void updatePopup() {
monthLabel.setText( monthFormat.format(calendar.getTime()) );
if (days != null) {
popup.remove(days);
}
days = new JPanel(new GridLayout(0, 7));
days.setBackground(background);
days.setOpaque(true);
Calendar setupCalendar = (Calendar) calendar.clone();
setupCalendar.set(Calendar.DAY_OF_WEEK, setupCalendar.getFirstDayOfWeek());
for (int i = 0; i < 7; i++) {
int dayInt = setupCalendar.get(Calendar.DAY_OF_WEEK);
JLabel label = new JLabel();
label.setHorizontalAlignment(JLabel.CENTER);
label.setForeground(foreground);
if (dayInt == Calendar.SUNDAY) {
label.setText("Sun");
} else if (dayInt == Calendar.MONDAY) {
label.setText("Mon");
} else if (dayInt == Calendar.TUESDAY) {
label.setText("Tue");
} else if (dayInt == Calendar.WEDNESDAY) {
label.setText("Wed");
} else if (dayInt == Calendar.THURSDAY) {
label.setText("Thu");
} else if (dayInt == Calendar.FRIDAY) {
label.setText("Fri");
} else if (dayInt == Calendar.SATURDAY){
label.setText("Sat");
}
days.add(label);
setupCalendar.roll(Calendar.DAY_OF_WEEK, true);
}
setupCalendar = (Calendar) calendar.clone();
setupCalendar.set(Calendar.DAY_OF_MONTH, 1);
int first = setupCalendar.get(Calendar.DAY_OF_WEEK);
for (int i = 0; i < (first - 1); i++) {
days.add(new JLabel(""));
}
for (int i = 1; i <= setupCalendar.getActualMaximum(Calendar.DAY_OF_MONTH); i++) {
final int day = i;
final JLabel label = new JLabel(String.valueOf(day));
label.setHorizontalAlignment(JLabel.CENTER);
label.setForeground(foreground);
label.addMouseListener(new MouseListener() {
public void mousePressed(MouseEvent e) {}
public void mouseClicked(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
label.setOpaque(false);
label.setBackground(background);
label.setForeground(foreground);
calendar.set(Calendar.DAY_OF_MONTH, day);
comboBox.setSelectedItem(dateFormat.format(calendar.getTime()));
// hide();
// hide is called with setSelectedItem() ... removeAll()
comboBox.requestFocus();
}
public void mouseEntered(MouseEvent e) {
label.setOpaque(true);
label.setBackground(selectedBackground);
label.setForeground(selectedForeground);
}
public void mouseExited(MouseEvent e) {
label.setOpaque(false);
label.setBackground(background);
label.setForeground(foreground);
}
});
days.add(label);
}
popup.add(BorderLayout.CENTER, days);
popup.pack();
}
}
//////////////////////////////////////////////////////////////
// This is only included to provide a sample GUI
//////////////////////////////////////////////////////////////
public static void main(String args[]) {
JFrame f = new JFrame();
Container c = f.getContentPane();
c.setLayout(new FlowLayout());
c.add(new JLabel("Date 1:"));
c.add(new DateComboBox());
c.add(new JLabel("Date 2:"));
DateComboBox dcb = new DateComboBox();
dcb.setEditable(true);
c.add(dcb);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
f.setSize(500, 200);
f.show();
}
}