GUI 日历 DefaultTableModel 添加 MouseListeners
GUI Calendar DefaultTableModel Addig MouseListeners
所以我遵循了有关如何创建 GUI 日历的教程，但现在我想更进一步。我希望能够单击日历中的各个日期以提示用户添加事件。但我不知道如何使用 DefaultTableModel 来实现这一点。有人可以帮我吗？
这是我目前的代码：
主要：
enum MONTHS
{
January, February, March, April, May, June, July, August, September, October, November, December;
}
enum DAYS
{
Su, Mo, Tu, We, Th, Fr, Sa;
}
public class MyCalendarTester implements java.io.Serializable {
static JTable tblCalendar;
//static JComboBox cmbYear;
static JFrame frmMain;
static Container panel;
static DefaultTableModel mtblCalendar; //Table model
static JScrollPane stblCalendar; //The scrollpane
static JPanel pnlCalendar;
static int realYear, realMonth, realDay, currentYear, currentMonth;
static MONTHS[] arrayOfMonths = MONTHS.values();
static DAYS[] arrayOfDays = DAYS.values();
static MyCalendar myCal = new MyCalendar();
static Event myEvent = new Event(null, null, null);
public static void main(String[] args) {
// TODO Auto-generated method stub
GregorianCalendar cal = new GregorianCalendar(); // capture today
//initialize calendar values
currentMonth = cal.get(Calendar.MONTH);
currentYear = cal.get(Calendar.YEAR);
realYear = cal.get(Calendar.YEAR);
realMonth = cal.get(Calendar.MONTH);
realDay = cal.get(Calendar.DATE);
//Look and feel that matches users Operating System
try {UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());}
catch (ClassNotFoundException e) {}
catch (InstantiationException e) {}
catch (IllegalAccessException e) {}
catch (UnsupportedLookAndFeelException e) {}
//Prepare frame
frmMain = new JFrame ("My Calendar"); //Create frame
frmMain.setSize(400, 400); //Set size to 400x400 pixels
panel = frmMain.getContentPane(); //Get content panel
panel.setLayout(null); //Apply null layout
frmMain.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Close when X is clicked
//Create controls
mtblCalendar = new DefaultTableModel(){public boolean isCellEditable(int rowIndex, int mColIndex){return false;}}; // prevents the dates from being edited
tblCalendar = new JTable(mtblCalendar);
stblCalendar = new JScrollPane(tblCalendar);
pnlCalendar = new JPanel(null);
//Set border
pnlCalendar.setBorder(BorderFactory.createTitledBorder(Integer.toString(cal.get(Calendar.YEAR))));
//Add controls to pane
panel.add(pnlCalendar);
pnlCalendar.add(stblCalendar);
//Set bounds
pnlCalendar.setBounds(0, 0, 320, 335);
stblCalendar.setBounds(10, 50, 300, 250);
frmMain.setResizable(false); // do not allow resizing
frmMain.setVisible(true);//Make frame visible
printCalendar(cal);
MyCalendar.monthView(cal.get(Calendar.MONTH), cal.get(Calendar.YEAR));
System.out.println("\nI think we're done here!");
}
/**
* displays the calendar for this month and highlights todays date
* @param cal the instance of todays calendar
*/
public static void printCalendar(Calendar cal){
GregorianCalendar dayCounter = new GregorianCalendar(); // capture today
dayCounter.set(Calendar.DAY_OF_MONTH, 1);
for (int i = 0; i < 7; i++){
mtblCalendar.addColumn(arrayOfDays[i]); // add headers for days of the week
}
tblCalendar.getParent().setBackground(tblCalendar.getBackground()); //Set white 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);
}
日历Class代码
public class MyCalendar{
GregorianCalendar calendar;
private static HashMap<GregorianCalendar, Event> myCalHash;
GregorianCalendar dayCounter = new GregorianCalendar(); // capture today
static MONTHS[] arrayOfMonths = MONTHS.values();
static DAYS[] arrayOfDays = DAYS.values();
static JButton btnPrev, btnNext;
static JLabel lblMonth = new JLabel ("January");;
MyCalendar(){
calendar = new GregorianCalendar();
myCalHash = new HashMap<GregorianCalendar, Event>();
}
public HashMap<GregorianCalendar, Event> getMyCalHash(){
return myCalHash;
}
public void setMyCalHash(HashMap<GregorianCalendar, Event> myCalHash) {
this.myCalHash = myCalHash;
}
public static void monthView(int month, int year){
//print month calendar
int nod, som; //Number Of Days, Start Of Month
//Clear table
for (int i = 0; i < 6; i++){
for (int j = 0; j < 7; j++){
MyCalendarTester.mtblCalendar.setValueAt(null, i, j);
}
}
btnPrev = new JButton ("<<");
btnNext = new JButton (">>");
//Register action listeners
btnPrev.addActionListener(new btnPrev_Action());
btnNext.addActionListener(new btnNext_Action());
btnPrev.setBounds(10, 25, 50, 25);
btnNext.setBounds(260, 25, 50, 25);
//Allow/disallow buttons
btnPrev.setEnabled(true);
btnNext.setEnabled(true);
System.out.println(arrayOfMonths[month].toString());
lblMonth.setText(arrayOfMonths[month].toString()); //Refresh the month label (at the top)
lblMonth.setBounds(160-lblMonth.getPreferredSize().width/2, 25, 180, 25); //Re-align label with calendar
MyCalendarTester.pnlCalendar.add(lblMonth);
MyCalendarTester.pnlCalendar.add(btnPrev);
MyCalendarTester.pnlCalendar.add(btnNext);
lblMonth.setBounds(160-lblMonth.getPreferredSize().width/2, 25, 100, 25); //places the calendar in the center
//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;
MyCalendarTester.mtblCalendar.setValueAt(i, row, column);
}
//Apply renderers
MyCalendarTester.tblCalendar.setDefaultRenderer(MyCalendarTester.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()) == MyCalendarTester.realDay &&
MyCalendarTester.currentMonth == MyCalendarTester.realMonth && MyCalendarTester.currentYear == MyCalendarTester.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 (MyCalendarTester.currentMonth == 0){ //Back one year
MyCalendarTester.currentMonth = 11;
MyCalendarTester.currentYear -= 1;
}
else{ //Back one month
MyCalendarTester.currentMonth -= 1;
}
monthView(MyCalendarTester.currentMonth, MyCalendarTester.currentYear);
}
}
static class btnNext_Action implements ActionListener{
public void actionPerformed (ActionEvent e){
if (MyCalendarTester.currentMonth == 11){ //Forward one year
MyCalendarTester.currentMonth = 0;
MyCalendarTester.currentYear += 1;
}
else{ //Foward one month
MyCalendarTester.currentMonth += 1;
}
monthView(MyCalendarTester.currentMonth, MyCalendarTester.currentYear);
}
}
将 MouseListener 添加到 JTable。
调用 mouseClicked 时，您可以使用 JTable#getSelectedRow 和 JTable#getSelectedColumn 来确定被单击的单元格。
这些值在视图的上下文中，您应该始终（作为一种好的做法）使用 JTable#convertRowIndexToModel and JTable#convertColumnIndexToModel
将它们转换为模型上下文
然后您可以使用JTable#getValueAt从模型中获取单元格值
查看 How to use tables and How to write MouseListeners 了解更多详情
所以我遵循了有关如何创建 GUI 日历的教程，但现在我想更进一步。我希望能够单击日历中的各个日期以提示用户添加事件。但我不知道如何使用 DefaultTableModel 来实现这一点。有人可以帮我吗？
这是我目前的代码：
主要：
enum MONTHS
{
January, February, March, April, May, June, July, August, September, October, November, December;
}
enum DAYS
{
Su, Mo, Tu, We, Th, Fr, Sa;
}
public class MyCalendarTester implements java.io.Serializable {
static JTable tblCalendar;
//static JComboBox cmbYear;
static JFrame frmMain;
static Container panel;
static DefaultTableModel mtblCalendar; //Table model
static JScrollPane stblCalendar; //The scrollpane
static JPanel pnlCalendar;
static int realYear, realMonth, realDay, currentYear, currentMonth;
static MONTHS[] arrayOfMonths = MONTHS.values();
static DAYS[] arrayOfDays = DAYS.values();
static MyCalendar myCal = new MyCalendar();
static Event myEvent = new Event(null, null, null);
public static void main(String[] args) {
// TODO Auto-generated method stub
GregorianCalendar cal = new GregorianCalendar(); // capture today
//initialize calendar values
currentMonth = cal.get(Calendar.MONTH);
currentYear = cal.get(Calendar.YEAR);
realYear = cal.get(Calendar.YEAR);
realMonth = cal.get(Calendar.MONTH);
realDay = cal.get(Calendar.DATE);
//Look and feel that matches users Operating System
try {UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());}
catch (ClassNotFoundException e) {}
catch (InstantiationException e) {}
catch (IllegalAccessException e) {}
catch (UnsupportedLookAndFeelException e) {}
//Prepare frame
frmMain = new JFrame ("My Calendar"); //Create frame
frmMain.setSize(400, 400); //Set size to 400x400 pixels
panel = frmMain.getContentPane(); //Get content panel
panel.setLayout(null); //Apply null layout
frmMain.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Close when X is clicked
//Create controls
mtblCalendar = new DefaultTableModel(){public boolean isCellEditable(int rowIndex, int mColIndex){return false;}}; // prevents the dates from being edited
tblCalendar = new JTable(mtblCalendar);
stblCalendar = new JScrollPane(tblCalendar);
pnlCalendar = new JPanel(null);
//Set border
pnlCalendar.setBorder(BorderFactory.createTitledBorder(Integer.toString(cal.get(Calendar.YEAR))));
//Add controls to pane
panel.add(pnlCalendar);
pnlCalendar.add(stblCalendar);
//Set bounds
pnlCalendar.setBounds(0, 0, 320, 335);
stblCalendar.setBounds(10, 50, 300, 250);
frmMain.setResizable(false); // do not allow resizing
frmMain.setVisible(true);//Make frame visible
printCalendar(cal);
MyCalendar.monthView(cal.get(Calendar.MONTH), cal.get(Calendar.YEAR));
System.out.println("\nI think we're done here!");
}
/**
* displays the calendar for this month and highlights todays date
* @param cal the instance of todays calendar
*/
public static void printCalendar(Calendar cal){
GregorianCalendar dayCounter = new GregorianCalendar(); // capture today
dayCounter.set(Calendar.DAY_OF_MONTH, 1);
for (int i = 0; i < 7; i++){
mtblCalendar.addColumn(arrayOfDays[i]); // add headers for days of the week
}
tblCalendar.getParent().setBackground(tblCalendar.getBackground()); //Set white 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);
}
日历Class代码
public class MyCalendar{
GregorianCalendar calendar;
private static HashMap<GregorianCalendar, Event> myCalHash;
GregorianCalendar dayCounter = new GregorianCalendar(); // capture today
static MONTHS[] arrayOfMonths = MONTHS.values();
static DAYS[] arrayOfDays = DAYS.values();
static JButton btnPrev, btnNext;
static JLabel lblMonth = new JLabel ("January");;
MyCalendar(){
calendar = new GregorianCalendar();
myCalHash = new HashMap<GregorianCalendar, Event>();
}
public HashMap<GregorianCalendar, Event> getMyCalHash(){
return myCalHash;
}
public void setMyCalHash(HashMap<GregorianCalendar, Event> myCalHash) {
this.myCalHash = myCalHash;
}
public static void monthView(int month, int year){
//print month calendar
int nod, som; //Number Of Days, Start Of Month
//Clear table
for (int i = 0; i < 6; i++){
for (int j = 0; j < 7; j++){
MyCalendarTester.mtblCalendar.setValueAt(null, i, j);
}
}
btnPrev = new JButton ("<<");
btnNext = new JButton (">>");
//Register action listeners
btnPrev.addActionListener(new btnPrev_Action());
btnNext.addActionListener(new btnNext_Action());
btnPrev.setBounds(10, 25, 50, 25);
btnNext.setBounds(260, 25, 50, 25);
//Allow/disallow buttons
btnPrev.setEnabled(true);
btnNext.setEnabled(true);
System.out.println(arrayOfMonths[month].toString());
lblMonth.setText(arrayOfMonths[month].toString()); //Refresh the month label (at the top)
lblMonth.setBounds(160-lblMonth.getPreferredSize().width/2, 25, 180, 25); //Re-align label with calendar
MyCalendarTester.pnlCalendar.add(lblMonth);
MyCalendarTester.pnlCalendar.add(btnPrev);
MyCalendarTester.pnlCalendar.add(btnNext);
lblMonth.setBounds(160-lblMonth.getPreferredSize().width/2, 25, 100, 25); //places the calendar in the center
//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;
MyCalendarTester.mtblCalendar.setValueAt(i, row, column);
}
//Apply renderers
MyCalendarTester.tblCalendar.setDefaultRenderer(MyCalendarTester.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()) == MyCalendarTester.realDay &&
MyCalendarTester.currentMonth == MyCalendarTester.realMonth && MyCalendarTester.currentYear == MyCalendarTester.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 (MyCalendarTester.currentMonth == 0){ //Back one year
MyCalendarTester.currentMonth = 11;
MyCalendarTester.currentYear -= 1;
}
else{ //Back one month
MyCalendarTester.currentMonth -= 1;
}
monthView(MyCalendarTester.currentMonth, MyCalendarTester.currentYear);
}
}
static class btnNext_Action implements ActionListener{
public void actionPerformed (ActionEvent e){
if (MyCalendarTester.currentMonth == 11){ //Forward one year
MyCalendarTester.currentMonth = 0;
MyCalendarTester.currentYear += 1;
}
else{ //Foward one month
MyCalendarTester.currentMonth += 1;
}
monthView(MyCalendarTester.currentMonth, MyCalendarTester.currentYear);
}
}
将 MouseListener 添加到 JTable。
调用 mouseClicked 时，您可以使用 JTable#getSelectedRow 和 JTable#getSelectedColumn 来确定被单击的单元格。
这些值在视图的上下文中，您应该始终（作为一种好的做法）使用 JTable#convertRowIndexToModel and JTable#convertColumnIndexToModel
然后您可以使用JTable#getValueAt从模型中获取单元格值
查看 How to use tables and How to write MouseListeners 了解更多详情