Moved source into separate src directory due to popular request

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

diff --git a/src/tim/prune/data/Photo.java b/src/tim/prune/data/Photo.java
new file mode 100644 (file)
index 0000000..0c5d9e5
--- /dev/null
+++ b/src/tim/prune/data/Photo.java
@@ -0,0 +1,168 @@
+package tim.prune.data;
+
+import java.awt.Dimension;
+import java.io.File;
+
+import javax.swing.ImageIcon;
+
+/**
+ * Class to represent a photo and link to DataPoint
+ */
+public class Photo extends MediaObject
+{
+       /** Size of original image */
+       private Dimension _size = null;
+       /** rotation flag (clockwise from 0 to 3) */
+       private int _rotation = 0;
+       // TODO: Need to store caption for image?
+       /** Bearing, if any */
+       private double _bearing = -1.0;
+       /** thumbnail for image (from exif) */
+       private byte[] _exifThumbnail = null;
+
+       /**
+        * Constructor
+        * @param inFile File object for photo
+        */
+       public Photo(File inFile)
+       {
+               super(inFile, null);
+       }
+
+       /**
+        * Constructor using data, eg from zip file or URL
+        * @param inData data as byte array
+        * @param inName name of file from which it came
+        * @param inUrl url from which it came (or null)
+        */
+       public Photo(byte[] inData, String inName, String inUrl)
+       {
+               super(inData, inName, inUrl);
+       }
+
+       /**
+        * Calculate the size of the image (slow)
+        */
+       private void calculateSize()
+       {
+               ImageIcon icon = null;
+               if (_file != null)
+                       icon = new ImageIcon(_file.getAbsolutePath());
+               else
+                       icon = new ImageIcon(_data);
+               int width = icon.getIconWidth();
+               int height = icon.getIconHeight();
+               if (width > 0 && height > 0)
+               {
+                       _size = new Dimension(width, height);
+               }
+       }
+
+       /**
+        * @return size of image as Dimension object
+        */
+       public Dimension getSize()
+       {
+               if (_size == null) {
+                       calculateSize();
+               }
+               return _size;
+       }
+
+       /**
+        * @return width of the image, if known
+        */
+       public int getWidth()
+       {
+               if (getSize() == null) {return -1;}
+               return _size.width;
+       }
+
+       /**
+        * @return height of the image, if known
+        */
+       public int getHeight()
+       {
+               if (getSize() == null) {return -1;}
+               return _size.height;
+       }
+
+       /**
+        * @return byte array of thumbnail data
+        */
+       public byte[] getExifThumbnail()
+       {
+               return _exifThumbnail;
+       }
+
+       /**
+        * @param inBytes byte array from exif
+        */
+       public void setExifThumbnail(byte[] inBytes)
+       {
+               _exifThumbnail = inBytes;
+       }
+
+       /**
+        * Delete the cached data when the Photo is no longer needed
+        */
+       public void resetCachedData()
+       {
+               _size = null;
+               // remove thumbnail too
+       }
+
+       /**
+        * @param inRotation initial rotation value (from exif)
+        */
+       public void setRotation(int inRotation)
+       {
+               if (inRotation >= 0 && inRotation <= 3) {
+                       _rotation = inRotation;
+               }
+       }
+
+       /**
+        * Rotate the image by 90 degrees
+        * @param inRight true to rotate right, false for left
+        */
+       public void rotate(boolean inRight)
+       {
+               int dir = inRight?1:3;
+               _rotation = (_rotation + dir) % 4;
+       }
+
+       /**
+        * @return rotation status
+        */
+       public int getRotationDegrees()
+       {
+               return _rotation * 90;
+       }
+
+       /**
+        * @return a new image icon for the whole image
+        */
+       public ImageIcon createImageIcon()
+       {
+               if (_file != null) {
+                       return new ImageIcon(_file.getAbsolutePath());
+               }
+               if (_data != null) {
+                       return new ImageIcon(_data);
+               }
+               return null;
+       }
+
+       /**
+        * @param inValue bearing in degrees, 0 to 360
+        */
+       public void setBearing(double inValue) {
+               _bearing = inValue;
+       }
+
+       /** @return bearing in degrees */
+       public double getBearing() {
+               return _bearing;
+       }
+}