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package tim.prune.data;
import java.io.File;
/**
* Class to hold the source of the point data, including the original file
* and file type, and references to each of the point objects
*/
public class SourceInfo
{
/** File type of source file */
public enum FILE_TYPE {TEXT, GPX, KML, NMEA, GPSBABEL, GPSIES};
/** Source file */
private File _sourceFile = null;
/** Name of source */
private String _sourceName = null;
/** File type */
private FILE_TYPE _fileType = null;
/** Array of datapoints */
private DataPoint[] _points = null;
/** Number of points */
private int _numPoints = 0;
/** Array of point indices (if necessary) */
private int[] _pointIndices = null;
/**
* Constructor
* @param inFile source file
* @param inType type of file
*/
public SourceInfo(File inFile, FILE_TYPE inType)
{
_sourceFile = inFile;
_sourceName = inFile.getName();
_fileType = inType;
}
/**
* Constructor
* @param inName name of source (without file)
* @param inType type of file
*/
public SourceInfo(String inName, FILE_TYPE inType)
{
_sourceFile = null;
_sourceName = inName;
_fileType = inType;
}
/**
* @return source file
*/
public File getFile()
{
return _sourceFile;
}
/**
* @return source name
*/
public String getName()
{
return _sourceName;
}
/**
* @return file type of source
*/
public FILE_TYPE getFileType()
{
return _fileType;
}
/**
* @return number of points from this source
*/
public int getNumPoints()
{
return _numPoints;
}
/**
* Set the indices of the points selected out of a loaded track
* @param inSelectedFlags array of booleans showing whether each point in the original data was loaded or not
*/
public void setPointIndices(boolean[] inSelectedFlags)
{
_numPoints = inSelectedFlags.length;
_pointIndices = new int[_numPoints];
int p=0;
for (int i=0; i<_numPoints; i++) {
if (inSelectedFlags[i]) {_pointIndices[p++] = i;}
}
// Now the point indices array holds the index of each of the selected points
}
/**
* Take the points from the given track and store
* @param inTrack track object containing points
* @param inNumPoints number of points loaded
*/
public void populatePointObjects(Track inTrack, int inNumPoints)
{
if (_numPoints == 0) {_numPoints = inNumPoints;}
if (inNumPoints > 0)
{
_points = new DataPoint[inNumPoints];
int trackLen = inTrack.getNumPoints();
System.arraycopy(inTrack.cloneContents(), trackLen-inNumPoints, _points, 0, inNumPoints);
// Note data copied twice here but still more efficient than looping
}
}
/**
* Look for the given point in the array
* @param inPoint point to look for
* @return index, or -1 if not found
*/
public int getIndex(DataPoint inPoint)
{
int idx = -1;
for (int i=0; i<_points.length; i++)
{
if (_points[i] == inPoint) {
idx = i;
break;
}
}
if (idx == -1) {return idx;} // point not found
if (_pointIndices == null) {return idx;} // All points loaded
return _pointIndices[idx]; // use point index mapping
}
}
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