|
1
7
8 package javax.swing;
9
10 import java.util.*;
11 import java.io.Serializable  ;
12
13
14
72 public class SpinnerDateModel extends AbstractSpinnerModel implements Serializable
73 {
74 private Comparable start, end;
75 private Calendar value;
76 private int calendarField;
77
78
79 private boolean calendarFieldOK(int calendarField) {
80 switch(calendarField) {
81 case Calendar.ERA:
82 case Calendar.YEAR:
83 case Calendar.MONTH:
84 case Calendar.WEEK_OF_YEAR:
85 case Calendar.WEEK_OF_MONTH:
86 case Calendar.DAY_OF_MONTH:
87 case Calendar.DAY_OF_YEAR:
88 case Calendar.DAY_OF_WEEK:
89 case Calendar.DAY_OF_WEEK_IN_MONTH:
90 case Calendar.AM_PM:
91 case Calendar.HOUR:
92 case Calendar.HOUR_OF_DAY:
93 case Calendar.MINUTE:
94 case Calendar.SECOND:
95 case Calendar.MILLISECOND:
96 return true;
97 default:
98 return false;
99 }
100 }
101
102
103
158 public SpinnerDateModel(Date value, Comparable start, Comparable end, int calendarField) {
159 if (value == null) {
160 throw new IllegalArgumentException ("value is null");
161 }
162 if (!calendarFieldOK(calendarField)) {
163 throw new IllegalArgumentException ("invalid calendarField");
164 }
165 if (!(((start == null) || (start.compareTo(value) <= 0)) &&
166 ((end == null) || (end.compareTo(value) >= 0)))) {
167 throw new IllegalArgumentException ("(start <= value <= end) is false");
168 }
169 this.value = Calendar.getInstance();
170 this.start = start;
171 this.end = end;
172 this.calendarField = calendarField;
173
174 this.value.setTime(value);
175 }
176
177
178
184 public SpinnerDateModel() {
185 this(new Date(), null, null, Calendar.DAY_OF_MONTH);
186 }
187
188
189
226 public void setStart(Comparable start) {
227 if ((start == null) ? (this.start != null) : !start.equals(this.start)) {
228 this.start = start;
229 fireStateChanged();
230 }
231 }
232
233
234
240 public Comparable getStart() {
241 return start;
242 }
243
244
245
267 public void setEnd(Comparable end) {
268 if ((end == null) ? (this.end != null) : !end.equals(this.end)) {
269 this.end = end;
270 fireStateChanged();
271 }
272 }
273
274
275
281 public Comparable getEnd() {
282 return end;
283 }
284
285
286
328 public void setCalendarField(int calendarField) {
329 if (!calendarFieldOK(calendarField)) {
330 throw new IllegalArgumentException ("invalid calendarField");
331 }
332 if (calendarField != this.calendarField) {
333 this.calendarField = calendarField;
334 fireStateChanged();
335 }
336 }
337
338
339
346 public int getCalendarField() {
347 return calendarField;
348 }
349
350
351
362 public Object getNextValue() {
363 Calendar cal = Calendar.getInstance();
364 cal.setTime(value.getTime());
365 cal.add(calendarField, 1);
366 Date next = cal.getTime();
367 return ((end == null) || (end.compareTo(next) >= 0)) ? next : null;
368 }
369
370
371
383 public Object getPreviousValue() {
384 Calendar cal = Calendar.getInstance();
385 cal.setTime(value.getTime());
386 cal.add(calendarField, -1);
387 Date prev = cal.getTime();
388 return ((start == null) || (start.compareTo(prev) <= 0)) ? prev : null;
389 }
390
391
392
399 public Date getDate() {
400 return value.getTime();
401 }
402
403
404
411 public Object getValue() {
412 return value.getTime();
413 }
414
415
416
438 public void setValue(Object value) {
439 if ((value == null) || !(value instanceof Date)) {
440 throw new IllegalArgumentException ("null value");
441 }
442 if (!value.equals(this.value.getTime())) {
443 this.value.setTime((Date)value);
444 fireStateChanged();
445 }
446 }
447 }
448 |
Popular Tags |
Java API By Example, From Geeks To Geeks.