X-Git-Url: http://gitweb.fperrin.net/?a=blobdiff_plain;f=tim%2Fprune%2Ffunction%2Fdeletebydate%2FDateInfoList.java;fp=tim%2Fprune%2Ffunction%2Fdeletebydate%2FDateInfoList.java;h=76286675502bc7403ad3f0085fdc789b1cd6b8f8;hb=a6197ddcaac11c0b943183da7d46169742d024af;hp=0000000000000000000000000000000000000000;hpb=88f2c3647ed9e055090484f01a959d4581f85e7d;p=GpsPrune.git

diff --git a/tim/prune/function/deletebydate/DateInfoList.java b/tim/prune/function/deletebydate/DateInfoList.java
new file mode 100644
index 0000000..7628667
--- /dev/null
+++ b/tim/prune/function/deletebydate/DateInfoList.java
@@ -0,0 +1,121 @@
+package tim.prune.function.deletebydate;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * List of date info objects for use by the table model
+ */
+public class DateInfoList
+{
+	/** list of info about points according to date */
+	private List<DateInfo> _infoList = new ArrayList<DateInfo>();
+	/** previously used dateinfo object to reduce list searching */
+	private DateInfo _previousInfo = null;
+	/** true if the list has been sorted, false otherwise */
+	private boolean _hasBeenSorted = false;
+
+
+	/**
+	 * Add a point to the corresponding dateinfo
+	 * @param inDate date of current point, or null if no timestamp
+	 */
+	public void addPoint(Date inDate)
+	{
+		if (_previousInfo != null && _previousInfo.isSameDate(inDate))
+		{
+			// found it
+			_previousInfo.incrementCount();
+		}
+		else
+		{
+			// loop through list, seeing if date already present
+			boolean foundDate = false;
+			for (DateInfo info : _infoList)
+			{
+				if (info.isSameDate(inDate))
+				{
+					info.incrementCount();
+					_previousInfo = info;
+					foundDate = true;
+					break;
+				}
+			}
+			// create new info if necessary
+			if (!foundDate)
+			{
+				_previousInfo = new DateInfo(inDate);
+				_previousInfo.incrementCount();
+				_infoList.add(_previousInfo);
+				_hasBeenSorted = false;
+			}
+		}
+	}
+
+	/**
+	 * Clear the whole list
+	 */
+	public void clearAll()
+	{
+		_infoList.clear();
+		_previousInfo = null;
+		_hasBeenSorted = true;
+	}
+
+	/**
+	 * not used, can be removed
+	 * @return true if any points without dates were found
+	 */
+	public boolean hasDatelessPoints()
+	{
+		if (_infoList.isEmpty()) {return false;}
+		sort();
+		DateInfo firstInfo = _infoList.get(0);
+		return (firstInfo != null && firstInfo.isDateless() && firstInfo.getPointCount() > 0);
+	}
+
+	/**
+	 * @return number of entries in the list, including dateless points
+	 */
+	public int getNumEntries()
+	{
+		return _infoList.size();
+	}
+
+	/**
+	 * @return the total number of points found, which should match the track size
+	 */
+	public int getTotalNumPoints()
+	{
+		int total = 0;
+		for (DateInfo info : _infoList) {
+			total += info.getPointCount();
+		}
+		return total;
+	}
+
+	/**
+	 * Sort the info list by ascending timestamps
+	 */
+	private void sort()
+	{
+		if (!_hasBeenSorted)
+		{
+			Collections.sort(_infoList);
+			_hasBeenSorted = true;
+		}
+	}
+
+	/**
+	 * Get the DateInfo object at the given index
+	 * @param inIndex index in (sorted) list
+	 * @return corresponding object (may throw exception if out of range)
+	 */
+	public DateInfo getDateInfo(int inIndex)
+	{
+		sort();
+		return _infoList.get(inIndex);
+	}
+}