implemented static Mat.eye method

modules/java/src/cpp/Mat.cpp

@@ -218,6 +218,14 @@ JNIEXPORT jlong JNICALL Java_org_opencv_Mat_nCross
  */
 JNIEXPORT jlong JNICALL Java_org_opencv_Mat_nInv
   (JNIEnv *, jclass, jlong);
+  
+/*
+ * Class:     org_opencv_Mat
+ * Method:    nEye
+ * Signature: (III)J
+ */
+JNIEXPORT jlong JNICALL Java_org_opencv_Mat_nEye
+  (JNIEnv *, jclass, jint, jint, jint);
 
 #ifdef __cplusplus
 }
@@ -586,6 +594,12 @@ JNIEXPORT jlong JNICALL Java_org_opencv_Mat_nInv
 	return 0; //NYI
 }
 
+JNIEXPORT jlong JNICALL Java_org_opencv_Mat_nEye
+    (JNIEnv* env, jclass cls, jint _rows, jint _cols, jint _type)
+{
+    return (jlong) new cv::Mat(cv::Mat::eye( _rows, _cols, _type ));
+}
+
 JNIEXPORT jlong JNICALL Java_org_opencv_Mat_nCreateMat__III
   (JNIEnv* env, jclass cls, jint _rows, jint _cols, jint _type)
 {

modules/java/src/java/Mat.java

@@ -383,6 +383,10 @@ public class Mat {
 		return nativeObj;
 	}
 	
+    static public Mat eye(int rows, int cols, CvType type) {
+        return new Mat( nEye(rows, cols, type.toInt()) );
+    }
+	
 	// native stuff
 	static { System.loadLibrary("opencv_java"); }
 	protected long nativeObj;
@@ -414,5 +418,6 @@ public class Mat {
 	private static native double nDot(long self, long mat);
 	private static native long nCross(long self, long mat);
 	private static native long nInv(long self);
+    private static native long nEye(int rows, int cols, int type);
 
 }