partial vector<> support in Java API generator

modules/java/src/cpp/utils.cpp

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+#include "utils.h"
+
+using namespace cv;

modules/java/src/cpp/utils.h

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+#include <jni.h>
+
+#include "opencv2/core/core.hpp"

modules/java/src/java/utils.java

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+package org.opencv;
+
+import java.util.List;
+
+
+public class utils {
+	
+	public static Mat vector_Point_to_Mat(List<Point> pts) {
+		Mat res;
+		int count = (pts!=null) ? pts.size() : 0;
+		if(count>0){
+			res = new Mat(1, count, CvType.CV_64FC2); //Point can be saved into double[2]
+			double[] buff = new double[count*2];
+			for(int i=0; i<count; i++) {
+				Point p = pts.get(i);
+				buff[i*2]   = p.x;
+				buff[i*2+1] = p.y;
+			}
+			res.put(0, 0, buff);
+		} else {
+			res = new Mat();
+		}
+		return res;
+	}
+
+	public static void Mat_to_vector_Point(Mat m, List<Point> pts) {
+		if(pts == null)
+			return;
+		int cols = m.cols();
+		if(!CvType.CV_64FC2.equals(m.type()) ||  m.rows()!=1 || cols%2!=0)
+			return;
+		
+		pts.clear();
+		double[] buff = new double[cols];
+		m.get(0, 0, buff);
+		for(int i=0; i<cols/2; i++) {
+			pts.add( new Point(buff[i*2], buff[i*2+1]) );
+		}
+	}
+
+	public static Mat vector_Mat_to_Mat(List<Mat> mats) {
+		Mat res;
+		int count = (mats!=null) ? mats.size() : 0;
+		if(count>0){
+			res = new Mat(1, count, CvType.CV_32SC2);
+			int[] buff = new int[count*2];
+			for(int i=0; i<count; i++) {
+				long addr = mats.get(i).nativeObj;
+				buff[i*2]   = (int)(addr >> 32);
+				buff[i*2+1] = (int)(addr & 0xffffffff);
+			}
+			res.put(0, 0, buff);
+		} else {
+			res = new Mat();
+		}
+		return res;
+	}
+
+	public static void Mat_to_vector_Mat(Mat m, List<Mat> mats) {
+		if(mats == null)
+			return;
+		int cols = m.cols();
+		if(!CvType.CV_32SC2.equals(m.type()) ||  m.rows()!=1 || cols%2!=0)
+			return;
+		
+		mats.clear();
+		int[] buff = new int[cols];
+		m.get(0, 0, buff);
+		for(int i=0; i<cols/2; i++) {
+			long addr = (((long)buff[i*2])<<32) | ((long)buff[i*2+1]);
+			mats.add( new Mat(addr) );
+		}
+	}
+
+	public static void Mat_to_vector_KeyPoint(Mat kp_mat, List<features2d.KeyPoint> kps) {
+		// TODO Auto-generated method stub
+	}
+
+	public static Mat vector_float_to_Mat(List<Float> fs) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public static void Mat_to_vector_float(Mat m, List<Float> fs) {
+		// TODO Auto-generated method stub
+	}
+
+	public static Mat vector_uchar_to_Mat(List<Byte> bs) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public static Mat vector_int_to_Mat(List<Integer> is) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public static void Mat_to_vector_int(Mat m, List<Integer> is) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	public static Mat vector_Rect_to_Mat(List<Rect> rs) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public static void Mat_to_vector_Rect(Mat m, List<Rect> rs) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	public static Mat vector_double_to_Mat(List<Double> ds) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}