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1
16
17 package swingwtx.swing;
18
19 import java.util.*;
20
21 public class SpinnerDateModel extends AbstractSpinnerModel {
22
23 private Comparable  start, end;
24 private Calendar value;
25 private int calendarField;
26
27 public SpinnerDateModel() { this(new Date(), null, null, Calendar.DAY_OF_MONTH); }
28 public SpinnerDateModel(Date value, Comparable start, Comparable end, int calendarField) {
29 this.start = start;
30 this.end = end;
31 this.calendarField = calendarField;
32 this.value = Calendar.getInstance();
33 this.value.setTime(value);
34 }
35
36 public void setStart(Comparable start) {
37 this.start = start;
38 fireStateChanged();
39 }
40
41 public Comparable getStart() {
42 return start;
43 }
44
45 public void setEnd(Comparable end) {
46 this.end = end;
47 fireStateChanged();
48 }
49
50 public Comparable getEnd() {
51 return end;
52 }
53
54 public void setCalendarField(int calendarField) {
55 this.calendarField = calendarField;
56 fireStateChanged();
57 }
58
59 public int getCalendarField() {
60 return calendarField;
61 }
62
63 public Object getNextValue() {
64 Calendar cal = Calendar.getInstance();
65 cal.setTime(value.getTime());
66 cal.add(calendarField, 1);
67 Date next = cal.getTime();
68 return ((end == null) || (end.compareTo(next) >= 0)) ? next : null;
69 }
70
71 public Object getPreviousValue() {
72 Calendar cal = Calendar.getInstance();
73 cal.setTime(value.getTime());
74 cal.add(calendarField, -1);
75 Date prev = cal.getTime();
76 return ((start == null) || (start.compareTo(prev) <= 0)) ? prev : null;
77 }
78
79 public Date getDate() {
80 return value.getTime();
81 }
82
83 public Object getValue() {
84 return value.getTime();
85 }
86
87 public void setValue(Object value) {
88 this.value.setTime((Date)value);
89 fireStateChanged();
90 }
91 }
92 |
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