Version 19.2, December 2018

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

diff --git a/tim/prune/data/FileInfo.java b/tim/prune/data/FileInfo.java
index 41fd10c8f893c0fa109b5afea12ffc9a20318e89..41900cb8736df60d668238306079256bf2dca175 100644 (file)
--- a/tim/prune/data/FileInfo.java
+++ b/tim/prune/data/FileInfo.java
@@ -1,60 +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
 {
-       private String _filename = null;
-       private int _numFiles = 0;
+       /** List of sources */
+       private ArrayList<SourceInfo> _sources = new ArrayList<SourceInfo>();
 
 
        /**
-        * Set the file information to the specified file
-        * @param inFilename filename of file
+        * Empty constructor
         */
-       public void setFile(String inFilename)
+       public FileInfo()
+       {}
+
+       /**
+        * Private constructor for creating clone
+        * @param inList list of sources
+        */
+       private FileInfo(ArrayList<SourceInfo> inList)
        {
-               _filename = inFilename;
-               _numFiles = 1;
+               _sources = inList;
        }
 
-
        /**
-        * Add a file to the data
+        * Add a data source to the list
+        * @param inInfo info object to add
         */
-       public void addFile()
+       public void addSource(SourceInfo inInfo)
        {
-               _numFiles++;
+               _sources.add(inInfo);
        }
 
-
        /**
-        * Undo a load file
+        * Replace the list of data sources with the given source
+        * @param inInfo new source
         */
-       public void removeFile()
+       public void replaceSource(SourceInfo inInfo)
        {
-               _numFiles--;
+               _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 _numFiles;
+               return _sources.size();
        }
 
 
        /**
-        * @return The filename, if a single file
+        * @return The source name, if a single file
         */
        public String getFilename()
        {
-               if (_numFiles == 1 && _filename != null)
-                       return _filename;
+               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);
+       }
 }