1 files changed, 133 insertions, 0 deletions
diff --git a/libgamma/Site.java b/libgamma/Site.java
new file mode 100644
index 0000000..6ce2ad4
--- /dev/null
+++ b/libgamma/Site.java
@@ -0,0 +1,133 @@
+/* See LICENSE file for copyright and license details. */
+package libgamma;
+
+
+/**
+ * Site state
+ * <p>
+ * On operating systems that integrate a graphical environment
+ * there is usually just one site. However, one systems with
+ * pluggable graphics, like Unix-like systems such as GNU/Linux
+ * and the BSD:s, there can usually be any (feasible) number of
+ * sites. In X.org parlance they are called displays.
+ */
+public class Site
+{
+	/**
+	 * Type initialiser
+	 */
+	static
+	{
+		Libgamma.initialise();
+	}
+
+
+	/**
+	 * Constructor
+	 * 
+	 * @param  method  The adjustmet method
+	 * @param  site    The site identifier
+	 */
+	public Site(AdjustmentMethod method, String site) throws LibgammaException
+	{
+		this.method = method;
+		this.site = site;
+		long[] r = libgamma_site_create(method.value, site);
+		this.address = r[0];
+		this.partitions_available = (int)(r[1]);
+		if (r[2] != 0)
+			throw new LibgammaException((int)(r[2]));
+	}
+
+
+	/**
+	 * This field specifies, for the methods if this library,
+	 * which adjustment method (display server and protocol)
+	 * is used to adjust the gamma ramps
+	 */
+	public final AdjustmentMethod method;
+
+	/**
+	 * The site identifier. It can either be {@code null} or
+	 * a string. {@code null} indicates the default site. On
+	 * systems like the Unix-like systems, where the graphics
+	 * are pluggable, this is usually resolved by an environment
+	 * variable, such as "DISPLAY" for X.org.
+	 */
+	public final String site;
+
+	/**
+	 * The number of partitions that is available on this site.
+	 * Probably the majority of display server only one partition
+	 * per site. However, X.org can, and traditional used to have
+	 * on multi-headed environments, multiple partitions per site.
+	 * In X.org partitions are called 'screens'. It is not to be
+	 * confused with monitor. A screen is a collection of monitors,
+	 * and the mapping from monitors to screens is a surjection.
+	 * On hardware-level adjustment methods, such as Direct
+	 * Rendering Manager, a partition is a graphics card.
+	 */
+	public final int partitions_available;
+
+	/**
+	 * The address of the native object
+	 */
+	final long address;
+
+
+	/**
+	 * Release resources
+	 */
+	public void close()
+	{
+		libgamma_site_free(this.address);
+	}
+
+	/**
+	 * Restore the gamma ramps all CRTC:s within the site to the system settings
+	 */
+	public void restore() throws LibgammaException
+	{
+		int r = libgamma_site_restore(this.address);
+		if (r != 0)
+			throw new LibgammaException(r);
+	}
+
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public String toString()
+	{
+		return "<Site: method = " + this.method.toString() + ", " +
+		       "site = " + (this.site == null ? "(null)" : this.site) + ", " +
+		       "partitions_available = " + Integer.toString(this.partitions_available) + ">";
+	}
+
+	/**
+	 * Create a site state
+	 * 
+	 * @param   method  The adjustment method (display server and protocol)
+	 * @param   site    The site identifier
+	 * @return          Element 0: The value for {@link #address}<br>
+	 *                  Element 1: The value for {@link #partitions_available}<br>
+	 *                  Element 2: Error code, zero on success
+	 */
+	private static native long[] libgamma_site_create(int method, String site);
+
+	/**
+	 * Release all resources held by a site state
+	 * and free the site state pointer
+	 * 
+	 * @param  address  The site state
+	 */
+	private static native void libgamma_site_free(long address);
+
+	/**
+	 * Restore the gamma ramps all CRTC:s within a site to the system settings
+	 * 
+	 * @param   address  The site state
+	 * @return           Zero on success, and error code on failure
+	 */
+	private static native int libgamma_site_restore(long address);
+}