X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Fdata%2FFileInfo.java;fp=src%2Ftim%2Fprune%2Fdata%2FFileInfo.java;h=41900cb8736df60d668238306079256bf2dca175;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/data/FileInfo.java b/src/tim/prune/data/FileInfo.java
new file mode 100644
index 0000000..41900cb
--- /dev/null
+++ b/src/tim/prune/data/FileInfo.java
@@ -0,0 +1,149 @@
+package tim.prune.data;
+
+import java.util.ArrayList;
+
+/**
+ * Class to hold the information about the file(s)
+ * from which the data was loaded from / saved to
+ */
+public class FileInfo
+{
+	/** List of sources */
+	private ArrayList<SourceInfo> _sources = new ArrayList<SourceInfo>();
+
+
+	/**
+	 * Empty constructor
+	 */
+	public FileInfo()
+	{}
+
+	/**
+	 * Private constructor for creating clone
+	 * @param inList list of sources
+	 */
+	private FileInfo(ArrayList<SourceInfo> inList)
+	{
+		_sources = inList;
+	}
+
+	/**
+	 * Add a data source to the list
+	 * @param inInfo info object to add
+	 */
+	public void addSource(SourceInfo inInfo)
+	{
+		_sources.add(inInfo);
+	}
+
+	/**
+	 * Replace the list of data sources with the given source
+	 * @param inInfo new source
+	 */
+	public void replaceSource(SourceInfo inInfo)
+	{
+		_sources.clear();
+		addSource(inInfo);
+	}
+
+	/**
+	 * remove the last source added
+	 */
+	public void removeSource()
+	{
+		_sources.remove(_sources.size()-1);
+	}
+
+	/**
+	 * @return the number of files loaded
+	 */
+	public int getNumFiles()
+	{
+		return _sources.size();
+	}
+
+
+	/**
+	 * @return The source name, if a single file
+	 */
+	public String getFilename()
+	{
+		if (getNumFiles() == 1) {
+			return _sources.get(0).getName();
+		}
+		return "";
+	}
+
+	/**
+	 * @param inIndex index number, starting from zero
+	 * @return source info object
+	 */
+	public SourceInfo getSource(int inIndex)
+	{
+		return _sources.get(inIndex);
+	}
+
+	/**
+	 * Get the SourceInfo object (if any) for the given point
+	 * @param inPoint point object
+	 * @return SourceInfo object if there is one, otherwise null
+	 */
+	public SourceInfo getSourceForPoint(DataPoint inPoint)
+	{
+		for (SourceInfo source : _sources)
+		{
+			if (source.getIndex(inPoint) >= 0) {
+				return source;
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * @return the info about the last file loaded, if any
+	 */
+	public SourceInfo getLastFileInfo()
+	{
+		if (getNumFiles() == 0)
+		{
+			return null;
+		}
+		return getSource(getNumFiles()-1);
+	}
+
+	/**
+	 * @return the most recent file title loaded, if any
+	 */
+	public String getLastFileTitle()
+	{
+		final int numFiles = getNumFiles();
+		if (numFiles == 0)
+		{
+			return null;
+		}
+		for (int i=(numFiles-1); i>=0; i--)
+		{
+			SourceInfo info = getSource(i);
+			if (info != null)
+			{
+				String title = info.getFileTitle();
+				if (title != null && !title.equals(""))
+				{
+					return title;
+				}
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Clone contents of file info
+	 */
+	@SuppressWarnings("unchecked")
+	public FileInfo clone()
+	{
+		// copy source list
+		ArrayList<SourceInfo> copy = (ArrayList<SourceInfo>) _sources.clone();
+		return new FileInfo(copy);
+	}
+}