Moved source into separate src directory due to popular request

[GpsPrune.git] / src / tim / prune / data / FileInfo.java

diff --git a/src/tim/prune/data/FileInfo.java b/src/tim/prune/data/FileInfo.java
new file mode 100644 (file)
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);
+       }
+}