Version 17, September 2014

[GpsPrune.git] / tim / prune / function / deletebydate / DateInfo.java

diff --git a/tim/prune/function/deletebydate/DateInfo.java b/tim/prune/function/deletebydate/DateInfo.java
new file mode 100644 (file)
index 0000000..0c2cedb
--- /dev/null
+++ b/tim/prune/function/deletebydate/DateInfo.java
@@ -0,0 +1,112 @@
+package tim.prune.function.deletebydate;
+
+import java.text.DateFormat;
+import java.util.Date;
+
+/**
+ * Class to hold the information about a date,
+ * including how many points correspond to the date
+ * and whether it has been selected for deletion or not
+ */
+public class DateInfo implements Comparable<DateInfo>
+{
+       /** Date, or null for no date - used for earlier/later comparison */
+       private Date _date = null;
+       /** String representation of date, for equality comparison */
+       private String _dateString = null;
+       /** Number of points with this date */
+       private int _numPoints = 0;
+       /** Flag for deletion or retention */
+       private boolean _toDelete = false;
+
+       // Doesn't really matter what format is used here, as long as dates are different
+       private static final DateFormat DEFAULT_DATE_FORMAT = DateFormat.getDateInstance();
+
+       /**
+        * Constructor
+        * @param inDate date object from timestamp
+        */
+       public DateInfo(Date inDate)
+       {
+               _date = inDate;
+               if (_date == null) {
+                       _dateString = "";
+               }
+               else {
+                       _dateString = DEFAULT_DATE_FORMAT.format(_date);
+               }
+               _numPoints = 0;
+               _toDelete = false;
+       }
+
+       /**
+        * @return true if this info is for dateless points (points without timestamp)
+        */
+       public boolean isDateless() {
+               return (_date == null);
+       }
+
+       /**
+        * @return date object, or null
+        */
+       public Date getDate() {
+               return _date;
+       }
+
+       /**
+        * Compare with a given Date object to see if they represent the same date
+        * @param inDate date to compare
+        * @return true if they're the same date
+        */
+       public boolean isSameDate(Date inDate)
+       {
+               if (inDate == null) {
+                       return (_date == null);
+               }
+               else if (_dateString == null) {
+                       return false;
+               }
+               String otherDateString = DEFAULT_DATE_FORMAT.format(inDate);
+               return _dateString.equals(otherDateString);
+       }
+
+       /**
+        * Increment the point count
+        */
+       public void incrementCount() {
+               _numPoints++;
+       }
+
+       /**
+        * @return point count
+        */
+       public int getPointCount() {
+               return _numPoints;
+       }
+
+       /**
+        * @param inFlag true to delete, false to keep
+        */
+       public void setDeleteFlag(boolean inFlag) {
+               _toDelete = inFlag;
+       }
+
+       /**
+        * @return true to delete, false to keep
+        */
+       public boolean getDeleteFlag() {
+               return _toDelete;
+       }
+
+       /**
+        * Compare with another DateInfo object for sorting
+        */
+       public int compareTo(DateInfo inOther)
+       {
+               // Dateless goes first
+               if (_date == null || _dateString == null) {return -1;}
+               if (inOther._date == null || inOther._dateString == null) {return 1;}
+               // Just compare dates
+               return _date.compareTo(inOther._date);
+       }
+}