X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Fdata%2FPhoto.java;fp=src%2Ftim%2Fprune%2Fdata%2FPhoto.java;h=0c5d9e51da160610757b299c7c6eee0924cebee5;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

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