2005-02-19 Sven de Marothy <sven@physto.se>

	* javax/swing/SpinnerDateModel.java: Implemented.

2005-02-19  Michael Koch  <konqueror@gmx.de>

	* Makefile.am: Added javax/swing/SpinnerDateModel.java.
	* Makefile.in: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@95274 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 237 insertions, 0 deletions

diff --git a/libjava/javax/swing/SpinnerDateModel.java b/libjava/javax/swing/SpinnerDateModel.java
new file mode 100644
index 00000000000..53bf9ec0c35
--- /dev/null
+++ b/libjava/javax/swing/SpinnerDateModel.java
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+/* SpinnerDateModel.java --
+   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.swing;
+
+import java.io.Serializable;
+import java.util.Calendar;
+import java.util.Date;
+
+/**
+ * SpinnerDateModel
+ *
+ * Implements a SpinnerModel for dates, rotating a calendar field such as 
+ * month, year, day, week, hour, minute.
+ *
+ * @author Sven de Marothy
+ * @version 0.1 (first implementation)
+ */
+public class SpinnerDateModel extends AbstractSpinnerModel
+  implements Serializable
+{
+  private Calendar date;
+  private Comparable start;
+  private Comparable end;
+  private int calendarField;
+
+  /**
+   * For compatability with Sun's JDK
+   * FIXME: what's the number? And which fields should be serialized?
+   */
+  private static final long serialVersionUID = 1L;
+
+  /**
+   * Constructs a SpinnerDateModel using the current date,
+   * no start or end limit, and Calendar.DAY_OF_MONTH as the calendar field.
+   */
+  public SpinnerDateModel()
+  {
+    this(new Date(), null, null, Calendar.DAY_OF_MONTH);
+  }
+
+  /**
+   * Constructs a SpinnerDateModel which spins a given calendar field,
+   * using a given date and start and end date limits.
+   * @param value - the initial Date value
+   * @param start - start limit, as a Date object, or <code>null</code>
+   * for no lower limit.
+   * @param end - end limit, or <code>null</code> for no upper limit.
+   * @param calendarField - the <code>Calendar</code> field to spin,
+   * (Calendar.ZONE_OFFSET and Calendar.DST_OFFSET are invalid)
+   */
+  public SpinnerDateModel(Date value, Comparable start, Comparable end,
+                          int calendarField)
+  {
+    date = Calendar.getInstance();
+    date.setTime(value);
+    this.start = start;
+    this.end = end;
+    setCalendarField(calendarField);
+  }
+
+  /**
+   * Returns the value of the Calendar field to spin.
+   */
+  public int getCalendarField()
+  {
+    return calendarField;
+  }
+
+  /**
+   * Returns the current date in the sequence.
+   * @return a <code>Date</code> object.
+   */
+  public Date getDate()
+  {
+    return date.getTime();
+  }
+
+  /**
+   * Returns the starting limit of the SpinnerModel.
+   * @return a Date object, or <code>null</code> if there is no limit.
+   */
+  public Comparable getStart()
+  {
+    return start;
+  }
+
+  /**
+   * Returns the end limit of the SpinnerModel.
+   * @return a Date object, or <code>null</code> if there is no limit.
+   */
+  public Comparable getEnd()
+  {
+    return end;
+  }
+
+  /**
+   * Returns the current date in the sequence,
+   * this method returns the same as <code>getDate()</code>.
+   * @return a <code>Date</code> object.
+   */
+  public Object getValue()
+  {
+    return date.getTime();
+  }
+
+  /**
+   * Returns the next date in the sequence, or <code>null</code> if the
+   * next date is equal to or past the end limit.
+   * @return a Date object, or <code>null</code>.
+   */
+  public Object getNextValue()
+  {
+    Calendar nextCal = Calendar.getInstance();
+    nextCal.setTime(date.getTime());
+    nextCal.roll(calendarField, true);
+    Date nextDate = nextCal.getTime();
+    if (end != null)
+      if (end.compareTo(nextDate) < 0)
+	return null;
+    return nextDate;
+  }
+
+  /**
+   * Returns the previous date in the sequence, or <code>null</code> if the
+   * next date is equal to or past the end limit.
+   * @return a Date object, or <code>null</code>.
+   */
+  public Object getPreviousValue()
+  {
+    Calendar prevCal = Calendar.getInstance();
+    prevCal.setTime(date.getTime());
+    prevCal.roll(calendarField, false);
+    Date prevDate = prevCal.getTime();
+    if (end != null)
+      if (end.compareTo(prevDate) > 0)
+	return null;
+    return prevDate;
+  }
+
+  /**
+   * Sets the date field to change. It must be a valid Calendar field,
+   * excluding Calendar.ZONE_OFFSET and Calendar.DST_OFFSET.
+   * @param calendarField - the calendar field to set.
+   */
+  public void setCalendarField(int calendarField)
+  {
+    if (calendarField < 0 || calendarField >= Calendar.FIELD_COUNT
+        || calendarField == Calendar.ZONE_OFFSET
+        || calendarField == Calendar.DST_OFFSET)
+      throw new IllegalArgumentException("Illegal calendarField");
+
+    if (this.calendarField != calendarField)
+      {
+	this.calendarField = calendarField;
+	fireStateChanged();
+      }
+  }
+
+  /**
+   * Sets the starting date limit for the sequence.
+   *
+   * @param start - a Date object of the limit date,
+   * or <code>null</code> for no limit.
+   */
+  public void setStart(Comparable start)
+  {
+    if (this.start != start)
+      {
+	this.start = start;
+	fireStateChanged();
+      }
+  }
+
+  /**
+   * Sets the end date limit for the sequence.
+   *
+   * @param end - a Date object of the limit date,
+   * or <code>null</code> for no limit.
+   */
+  public void setEnd(Comparable end)
+  {
+    if (this.end != end)
+      {
+	this.end = end;
+	fireStateChanged();
+      }
+  }
+
+  /**
+   * Sets the current date in the sequence.
+   *
+   * @param value - a Date object.
+   */
+  public void setValue(Object value)
+  {
+    if (! (value instanceof Date) || value == null)
+      throw new IllegalArgumentException("Value not a date.");
+    date.setTime((Date) value);
+    fireStateChanged();
+  }
+}