summaryrefslogtreecommitdiff
path: root/libjava/classpath/javax/swing/SpinnerDateModel.java
diff options
context:
space:
mode:
authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/javax/swing/SpinnerDateModel.java
downloadcbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2
cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository.
Diffstat (limited to 'libjava/classpath/javax/swing/SpinnerDateModel.java')
-rw-r--r--libjava/classpath/javax/swing/SpinnerDateModel.java317
1 files changed, 317 insertions, 0 deletions
diff --git a/libjava/classpath/javax/swing/SpinnerDateModel.java b/libjava/classpath/javax/swing/SpinnerDateModel.java
new file mode 100644
index 000000000..f0e9d1ec4
--- /dev/null
+++ b/libjava/classpath/javax/swing/SpinnerDateModel.java
@@ -0,0 +1,317 @@
+/* SpinnerDateModel.java --
+ Copyright (C) 2002, 2004, 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 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;
+
+import javax.swing.event.ChangeEvent;
+
+/**
+ * A date model used by the {@link JSpinner} component. This implements a
+ * spinner model for dates, rotating a calendar field such as month, year,
+ * day, week, hour, minute.
+ *
+ * @author Sven de Marothy
+ * @since 1.4
+ */
+public class SpinnerDateModel extends AbstractSpinnerModel
+ implements Serializable
+{
+ /** The current date. */
+ private Calendar date;
+
+ /**
+ * A constraint on the start or earliest permitted date (<code>null</code>
+ * for no minimum).
+ */
+ private Comparable start;
+
+ /**
+ * A constraint on the end or latest permitted date (<code>null</code> for no
+ * maximum).
+ */
+ private Comparable end;
+
+ /**
+ * The calendar field used to calculate the previous or next date.
+ */
+ private int calendarField;
+
+ /**
+ * For compatability with Sun's JDK
+ */
+ private static final long serialVersionUID = -4802518107105940612L;
+
+ /**
+ * Constructs a <code>SpinnerDateModel</code> using the current date,
+ * no start or end limit, and {@link Calendar#DAY_OF_MONTH} as the calendar
+ * field.
+ */
+ public SpinnerDateModel()
+ {
+ this(new Date(), null, null, Calendar.DAY_OF_MONTH);
+ }
+
+ /**
+ * Constructs a <code>SpinnerDateModel</code> with the specified value, lower
+ * and upper bounds, and which spins the specified calendar field.
+ * <p>
+ * The <code>start</code> and <code>end</code> limits must have a
+ * <code>compareTo</code> method that supports instances of {@link Date}, but
+ * do not themselves need to be instances of {@link Date} (although typically
+ * they are).
+ *
+ * @param value the initial value/date (<code>null</code> not permitted).
+ * @param start a constraint that specifies the earliest permitted date
+ * value, or <code>null</code> for no lower limit.
+ * @param end a constraint that specifies the latest permitted date value,
+ * 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)
+ {
+ if (value == null)
+ throw new IllegalArgumentException("Null 'value' argument.");
+ if (start != null && start.compareTo(value) > 0)
+ throw new IllegalArgumentException("Require value on or after start.");
+ if (end != null && end.compareTo(value) < 0)
+ throw new IllegalArgumentException("Require value on or before end.");
+ date = Calendar.getInstance();
+ date.setTime(value);
+ this.start = start;
+ this.end = end;
+ setCalendarField(calendarField);
+ }
+
+ /**
+ * Returns the {@link Calendar} field used to calculate the previous and
+ * next dates in the sequence.
+ *
+ * @return The date field code.
+ */
+ public int getCalendarField()
+ {
+ return calendarField;
+ }
+
+ /**
+ * Returns the current date/time.
+ *
+ * @return The current date/time (never <code>null</code>).
+ *
+ * @see #getValue()
+ */
+ public Date getDate()
+ {
+ return date.getTime();
+ }
+
+ /**
+ * Returns the lower limit on the date/time value, or <code>null</code> if
+ * there is no minimum date/time.
+ *
+ * @return The lower limit.
+ *
+ * @see #setStart(Comparable)
+ */
+ public Comparable getStart()
+ {
+ return start;
+ }
+
+ /**
+ * Returns the upper limit on the date/time value, or <code>null</code> if
+ * there is no maximum date/time.
+ *
+ * @return The upper limit.
+ *
+ * @see #setEnd(Comparable)
+ */
+ public Comparable getEnd()
+ {
+ return end;
+ }
+
+ /**
+ * Returns the current date in the sequence (this method returns the same as
+ * {@link #getDate()}).
+ *
+ * @return The current date (never <code>null</code>).
+ */
+ public Object getValue()
+ {
+ return date.getTime();
+ }
+
+ /**
+ * Returns the next date in the sequence, or <code>null</code> if the
+ * next date is past the upper limit (if one is specified). The current date
+ * is not changed.
+ *
+ * @return The next date, or <code>null</code> if the current value is
+ * the latest date represented by the model.
+ *
+ * @see #getEnd()
+ */
+ 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
+ * previous date is prior to the lower limit (if one is specified). The
+ * current date is not changed.
+ *
+ * @return The previous date, or <code>null</code> if the current value is
+ * the earliest date represented by the model.
+ *
+ * @see #getStart()
+ */
+ public Object getPreviousValue()
+ {
+ Calendar prevCal = Calendar.getInstance();
+ prevCal.setTime(date.getTime());
+ prevCal.roll(calendarField, false);
+ Date prevDate = prevCal.getTime();
+ if (start != null)
+ if (start.compareTo(prevDate) > 0)
+ return null;
+ return prevDate;
+ }
+
+ /**
+ * Sets the date field to change when calculating the next and previous
+ * values. It must be a valid {@link Calendar} field, excluding
+ * {@link Calendar#ZONE_OFFSET} and {@link Calendar#DST_OFFSET}.
+ *
+ * @param calendarField the calendar field to set.
+ *
+ * @throws IllegalArgumentException if <code>calendarField</code> is not
+ * a valid code.
+ */
+ 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 lower limit for the date/time value and, if the new limit is
+ * different to the old limit, sends a {@link ChangeEvent} to all registered
+ * listeners. A <code>null</code> value is interpreted as "no lower limit".
+ * No check is made to ensure that the current date/time is on or after the
+ * new lower limit - the caller is responsible for ensuring that this
+ * relationship holds. In addition, the caller should ensure that
+ * <code>start</code> is {@link Serializable}.
+ *
+ * @param start the new lower limit for the date/time value
+ * (<code>null</code> permitted).
+ */
+ public void setStart(Comparable start)
+ {
+ if (this.start != start)
+ {
+ this.start = start;
+ fireStateChanged();
+ }
+ }
+
+ /**
+ * Sets the upper limit for the date/time value and, if the new limit is
+ * different to the old limit, sends a {@link ChangeEvent} to all registered
+ * listeners. A <code>null</code> value is interpreted as "no upper limit".
+ * No check is made to ensure that the current date/time is on or before the
+ * new upper limit - the caller is responsible for ensuring that this
+ * relationship holds. In addition, the caller should ensure that
+ * <code>end</code> is {@link Serializable}.
+ *
+ * @param end the new upper limit for the date/time value (<code>null</code>
+ * permitted).
+ */
+ public void setEnd(Comparable end)
+ {
+ if (this.end != end)
+ {
+ this.end = end;
+ fireStateChanged();
+ }
+ }
+
+ /**
+ * Sets the current date and, if the new value is different to the old
+ * value, sends a {@link ChangeEvent} to all registered listeners.
+ *
+ * @param value the new date (<code>null</code> not permitted, must be an
+ * instance of <code>Date</code>).
+ *
+ * @throws IllegalArgumentException if <code>value</code> is not an instance
+ * of <code>Date</code>.
+ */
+ public void setValue(Object value)
+ {
+ if (! (value instanceof Date) || value == null)
+ throw new IllegalArgumentException("Value not a date.");
+
+ if (!date.getTime().equals(value))
+ {
+ date.setTime((Date) value);
+ fireStateChanged();
+ }
+ }
+}