--- /dev/null
+package tim.prune.jpeg;
+
+import java.util.ArrayList;
+
+/**
+ * Class to hold the GPS data extracted from a Jpeg including position and time
+ */
+public class JpegData
+{
+ private boolean _exifDataPresent = false;
+ private char _latitudeRef = '\0';
+ private char _longitudeRef = '\0';
+ private byte _altitudeRef = 0;
+ private double[] _latitude = null;
+ private double[] _longitude = null;
+ private int _altitude = -1;
+ private boolean _altitudePresent = false;
+ private int[] _gpsTimestamp = null;
+ private int[] _gpsDatestamp = null;
+ private String _originalTimestamp = null;
+ private String _digitizedTimestamp = null;
+ private int _orientationCode = -1;
+ private byte[] _thumbnail = null;
+ private double _bearing = -1.0;
+ private ArrayList<String> _errors = null;
+
+
+ /**
+ * Set the exif data present flag
+ */
+ public void setExifDataPresent()
+ {
+ _exifDataPresent = true;
+ }
+ /**
+ * @return true if exif data found
+ */
+ public boolean getExifDataPresent()
+ {
+ return _exifDataPresent;
+ }
+
+ /**
+ * Set the latitude reference (N/S)
+ * @param inString string containing reference
+ */
+ public void setLatitudeRef(String inString)
+ {
+ if (inString != null && inString.length() == 1)
+ _latitudeRef = inString.charAt(0);
+ }
+
+ /**
+ * Set the latitude
+ * @param inValues array of three doubles for deg-min-sec
+ */
+ public void setLatitude(double[] inValues)
+ {
+ if (inValues != null && inValues.length == 3)
+ _latitude = inValues;
+ }
+
+ /**
+ * Set the longitude reference (E/W)
+ * @param inString string containing reference
+ */
+ public void setLongitudeRef(String inString)
+ {
+ if (inString != null && inString.length() == 1)
+ _longitudeRef = inString.charAt(0);
+ }
+
+ /**
+ * Set the longitude
+ * @param inValues array of three doubles for deg-min-sec
+ */
+ public void setLongitude(double[] inValues)
+ {
+ if (inValues != null && inValues.length == 3)
+ _longitude = inValues;
+ }
+
+ /**
+ * Set the altitude reference (sea level / not)
+ * @param inByte byte representing reference
+ */
+ public void setAltitudeRef(byte inByte)
+ {
+ _altitudeRef = inByte;
+ }
+
+ /**
+ * Set the altitude
+ * @param inValue integer representing altitude
+ */
+ public void setAltitude(int inValue)
+ {
+ _altitude = inValue;
+ _altitudePresent = true;
+ }
+
+ /**
+ * Set the Gps timestamp
+ * @param inValues array of ints holding timestamp
+ */
+ public void setGpsTimestamp(int[] inValues)
+ {
+ _gpsTimestamp = inValues;
+ }
+
+ /**
+ * Set the Gps datestamp
+ * @param inValues array of ints holding datestamp
+ */
+ public void setGpsDatestamp(int[] inValues)
+ {
+ _gpsDatestamp = inValues;
+ }
+
+ /**
+ * Set the original timestamp
+ * @param inStamp original timestamp of photo
+ */
+ public void setOriginalTimestamp(String inStamp)
+ {
+ _originalTimestamp = inStamp;
+ }
+
+ /**
+ * Set the digitized timestamp
+ * @param inStamp digitized (creation) timestamp of photo
+ */
+ public void setDigitizedTimestamp(String inStamp)
+ {
+ _digitizedTimestamp = inStamp;
+ }
+
+ /**
+ * Set the orientation code
+ * @param inCode code from exif (1 to 8)
+ */
+ public void setOrientationCode(int inCode)
+ {
+ if (inCode >= 1 && inCode <= 8) {
+ _orientationCode = inCode;
+ }
+ }
+
+ /**
+ * Set the bearing (0 - 360)
+ * @param inBearing bearing in degrees
+ */
+ public void setBearing(double inBearing)
+ {
+ _bearing = inBearing;
+ }
+
+ /** @return latitude ref as char */
+ public char getLatitudeRef() { return _latitudeRef; }
+ /** @return latitude as array of 3 Rationals */
+ public double[] getLatitude() { return _latitude; }
+ /** @return longitude ref as char */
+ public char getLongitudeRef() { return _longitudeRef; }
+ /** @return longitude as array of 3 doubles */
+ public double[] getLongitude() { return _longitude; }
+ /** @return altitude ref as byte (should be 0) */
+ public byte getAltitudeRef() { return _altitudeRef; }
+ /** @return true if altitude present */
+ public boolean hasAltitude() { return _altitudePresent; }
+ /** @return altitude as int */
+ public int getAltitude() { return _altitude; }
+ /** @return Gps timestamp as array of 3 ints */
+ public int[] getGpsTimestamp() { return _gpsTimestamp; }
+ /** @return Gps datestamp as array of 3 ints */
+ public int[] getGpsDatestamp() { return _gpsDatestamp; }
+ /** @return orientation code (1 to 8) */
+ public int getOrientationCode() { return _orientationCode; }
+ /** @return original timestamp as string */
+ public String getOriginalTimestamp() { return _originalTimestamp; }
+ /** @return digitized timestamp as string */
+ public String getDigitizedTimestamp() { return _digitizedTimestamp; }
+ /** @return bearing in degrees or -1 */
+ public double getBearing() { return _bearing; }
+
+ /**
+ * Set the thumbnail
+ * @param inBytes byte array containing thumbnail
+ */
+ public void setThumbnailImage(byte[] inBytes) {
+ _thumbnail = inBytes;
+ }
+ /** @return thumbnail as byte array */
+ public byte[] getThumbnailImage() {
+ return _thumbnail;
+ }
+
+ /**
+ * @return rotation required to display photo properly (0 to 3)
+ */
+ public int getRequiredRotation()
+ {
+ if (_orientationCode <= 2) { return 0; } // no rotation required
+ if (_orientationCode <= 4) { return 2; } // 180 degrees
+ if (_orientationCode <= 6) { return 1; } // 270 degrees, so need to rotate by 90
+ return 3; // 90 degrees, so need to rotate by 270
+ }
+
+ /**
+ * @return true if data looks valid, ie has at least lat and long
+ * (altitude and timestamp optional).
+ */
+ public boolean isGpsValid()
+ {
+ return (_latitudeRef == 'N' || _latitudeRef == 'n' || _latitudeRef == 'S' || _latitudeRef == 's')
+ && _latitude != null
+ && (_longitudeRef == 'E' || _longitudeRef == 'e' || _longitudeRef == 'W' || _longitudeRef == 'w')
+ && _longitude != null;
+ }
+
+ /**
+ * Add the given error message to the list of errors
+ * @param inError String containing error message
+ */
+ public void addError(String inError)
+ {
+ if (_errors == null) _errors = new ArrayList<String>();
+ _errors.add(inError);
+ }
+
+ /**
+ * @return the number of errors, if any
+ */
+ public int getNumErrors()
+ {
+ if (_errors == null) return 0;
+ return _errors.size();
+ }
+
+ /**
+ * @return true if errors occurred
+ */
+ public boolean hasErrors()
+ {
+ return getNumErrors() > 0;
+ }
+
+ /**
+ * @return all errors as a list
+ */
+ public ArrayList<String> getErrors()
+ {
+ return _errors;
+ }
+}
projects / GpsPrune.git / blobdiff