|
1 package snow.utils.gui;
2
3 import java.awt.*;
4 import java.awt.event.*;
5 import javax.swing.*;
6 import javax.swing.border.*;
7 import javax.swing.event.*;
8 import java.util.*;
9 import java.text.*;
10
11 public final class DateEditorPanel extends JPanel
12 {
13 private Calendar selectedDate = Calendar.getInstance();
14
15 private final int fontSize = UIManager.getFont("Label.font").getSize();
16 private final DaysPanel daysPanel;
17 private final MonthPanel monthPanel;
18 private final YearPanel yearPanel;
19
20 private final Font boldFont;
21 private final Font smallFont;
22
23 public DateEditorPanel(Date date)
24 {
25 super(new BorderLayout());
26
27 smallFont = new Font("Dialog", Font.PLAIN, Math.max(fontSize-2, 9));
28 boldFont = new Font("Dialog", Font.BOLD, Math.min(fontSize+2, 12));
29
30 selectedDate.setTime(date);
31 selectedDate.setLenient(true);
33 monthPanel = new MonthPanel();
34 daysPanel = new DaysPanel();
35 yearPanel = new YearPanel();
36
37 add(monthPanel, BorderLayout.NORTH);
38 add(daysPanel, BorderLayout.CENTER);
39 add(yearPanel, BorderLayout.SOUTH);
40
41
42 monthPanel.updateLabel();
43 yearPanel.updateLabel();
44 daysPanel.update();
45 }
47 public Date getSelectedDate()
48 {
49 return this.selectedDate.getTime();
50 }
51
52 class DaysPanel extends JPanel
53 {
54 String  [] days = new String []{"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"};
55 public DaysPanel()
56 {
57 super(new GridLayout(7,7));
58 }
60
61 private void setColor(int dayInWeek, JComponent c)
62 {
63 c.setOpaque(true);
64 if(dayInWeek==0 || dayInWeek==6)
65 {
66 c.setBackground(new Color(250,200,200,255));
67 }
68 else
69 {
70 c.setBackground(new Color(186,250,181,255));
71 }
72 }
73
74 public void update()
75 {
76 this.removeAll();
77 for(int i=0; i<7; i++)
78 {
79 JLabel dayLabel = new JLabel(days[i]);
80 add(dayLabel);
81 dayLabel.setFont(smallFont);
82 dayLabel.setHorizontalAlignment(JLabel.CENTER);
83 dayLabel.setBorder(null);
84 }
85
86 int selectedDayOfWeek = selectedDate.get(Calendar.DAY_OF_WEEK)-1; int selectedDay = selectedDate.get(Calendar.DAY_OF_MONTH);
90 System.out.println("day="+selectedDay+" in week="+selectedDayOfWeek);
91
92 int weekDayOfMonthFirst = (7+selectedDayOfWeek - (selectedDay-1)%7) % 7;
94 int numberOfDaysInMonth = selectedDate.getActualMaximum(Calendar.DAY_OF_MONTH);
95 System.out.println(""+weekDayOfMonthFirst);
96
97 int dayInWeek = 0;
98 for(int i=0; i<weekDayOfMonthFirst; i++)
99 {
100 JLabel lab = new JLabel("");
101 setColor(dayInWeek%7, lab);
102 dayInWeek++;
103 add(lab);
104 }
105
106 for(int i=1; i<=numberOfDaysInMonth; i++)
107 {
108 final int ii = i;
109 JButton jb = new JButton(""+(i));
110 jb.addActionListener(new ActionListener()
111 {
112 public void actionPerformed(ActionEvent e)
113 {
114 selectedDate.set(Calendar.DAY_OF_MONTH, ii);
115 update();
116 }
117 });
118 jb.setBorder(null);
119 jb.setFocusPainted(false);
120 if(i==selectedDay)
121 {
122 jb.setFont(boldFont);
123 }
124 else
125 {
126 jb.setFont(smallFont);
127 }
128 add(jb);
129 setColor(dayInWeek%7, jb);
130 dayInWeek++;
131 }
132
133 int remains = 42-numberOfDaysInMonth-weekDayOfMonthFirst;
134 for(int i=0; i<remains; i++)
135 {
136 JLabel lab = new JLabel("");
137 setColor(dayInWeek%7, lab);
138 dayInWeek++;
139 add(lab);
140 }
141 }
142 }
143
144 class MonthPanel extends JPanel
145 {
146 JButton shiftUpMonthBT = new JButton(" > ");
147 JButton shiftDownMonthBT = new JButton(" < ");
148 JLabel monthLabel = new JLabel();
149 SimpleDateFormat monthFormat = new SimpleDateFormat("MMMMMMMMMM");
150
151 public MonthPanel()
152 {
153 super(new BorderLayout());
154 monthLabel.setAlignmentX(JLabel.CENTER_ALIGNMENT);
155 monthLabel.setHorizontalAlignment(JLabel.CENTER);
156 monthLabel.setFont(boldFont);
157
158 add(shiftDownMonthBT, BorderLayout.WEST);
159 add(monthLabel, BorderLayout.CENTER);
160 add(shiftUpMonthBT, BorderLayout.EAST);
161
162 shiftUpMonthBT.setBorder(null);
163 shiftDownMonthBT.setBorder(null);
164
165 shiftUpMonthBT.addActionListener(new ActionListener()
166 {
167 public void actionPerformed(ActionEvent e)
168 {
169 selectedDate.set(Calendar.MONTH,
170 selectedDate.get(Calendar.MONTH)+1 );
171 updateLabel();
172 yearPanel.updateLabel();
173 daysPanel.update();
174 }
175 });
176
177 shiftDownMonthBT.addActionListener(new ActionListener()
178 {
179 public void actionPerformed(ActionEvent e)
180 {
181 selectedDate.set(Calendar.MONTH,
182 selectedDate.get(Calendar.MONTH)-1 );
183 updateLabel();
184 yearPanel.updateLabel();
185 daysPanel.update();
186 }
187 });
188
189 }
191
192 public void updateLabel()
193 {
194 monthLabel.setText( monthFormat.format( selectedDate.getTime() ));
195 }
196 }
197
198
199 class YearPanel extends JPanel
200 {
201 JButton shiftUpMonthBT = new JButton(" > ");
202 JButton shiftDownMonthBT = new JButton(" < ");
203 JLabel monthLabel = new JLabel();
204 SimpleDateFormat yearFormat = new SimpleDateFormat("yyyy");
205
206 public YearPanel()
207 {
208 super(new BorderLayout());
209 monthLabel.setAlignmentX(JLabel.CENTER_ALIGNMENT);
210 monthLabel.setHorizontalAlignment(JLabel.CENTER);
211 monthLabel.setFont(boldFont);
212
213 add(shiftDownMonthBT, BorderLayout.WEST);
214 add(monthLabel, BorderLayout.CENTER);
215 add(shiftUpMonthBT, BorderLayout.EAST);
216
217 shiftUpMonthBT.setBorder(null);
218 shiftDownMonthBT.setBorder(null);
219
220
221 shiftUpMonthBT.addActionListener(new ActionListener()
222 {
223 public void actionPerformed(ActionEvent e)
224 {
225 selectedDate.set(Calendar.YEAR,
226 (selectedDate.get(Calendar.YEAR)+1) );
227 updateLabel();
228 daysPanel.update();
229 }
230 });
231
232 shiftDownMonthBT.addActionListener(new ActionListener()
233 {
234 public void actionPerformed(ActionEvent e)
235 {
236 selectedDate.set(Calendar.YEAR,
237 (selectedDate.get(Calendar.YEAR)-1) );
238 updateLabel();
239 daysPanel.update();
240 }
241 });
242
243 }
245
246 public void updateLabel()
247 {
248 monthLabel.setText( yearFormat.format( selectedDate.getTime() ));
249 }
250 }
251
252
253 public static void main(String [] a)
254 {
255 JFrame jf = new JFrame("test");
256 jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
257 DateEditorPanel dv = new DateEditorPanel(new Date());
258
259 jf.getContentPane().add(dv);
260 jf.setSize(200, 250);
262 jf.setVisible(true);
263
264 }
266
267
268
269 } |
Popular Tags |
Java API By Example, From Geeks To Geeks.