content: package org.opencv.core;
  
  import java.util.Arrays;
  import java.util.List;
  
  
  public class MatOfRect extends Mat {
      // 32SC4
      private static final int _depth = CvType.CV_32S;
      private static final int _channels = 4;
  
      public MatOfRect() {
          super();
      }
  
      protected MatOfRect(long addr) {
          super(addr);
          if( !empty() && checkVector(_channels, _depth) < 0 )
              throw new IllegalArgumentException("Incompatible Mat");
          //FIXME: do we need release() here?
      }
  
      public static MatOfRect fromNativeAddr(long addr) {
          return new MatOfRect(addr);
      }
  
      public MatOfRect(Mat m) {
          super(m, Range.all());
          if( !empty() && checkVector(_channels, _depth) < 0 )
              throw new IllegalArgumentException("Incompatible Mat");
          //FIXME: do we need release() here?
      }
  
      public MatOfRect(Rect...a) {
          super();
          fromArray(a);
      }
  
      public void alloc(int elemNumber) {
          if(elemNumber>0)
              super.create(elemNumber, 1, CvType.makeType(_depth, _channels));
      }
  
      public void fromArray(Rect...a) {
          if(a==null || a.length==0)
              return;
          int num = a.length;
          alloc(num);
          int buff[] = new int[num * _channels];
          for(int i=0; i<num; i++) {
              Rect r = a[i];
              buff[_channels*i+0] = (int) r.x;
              buff[_channels*i+1] = (int) r.y;
              buff[_channels*i+2] = (int) r.width;
              buff[_channels*i+3] = (int) r.height;
          }
          put(0, 0, buff); //TODO: check ret val!
      }
  
  
      public Rect[] toArray() {
          int num = (int) total();
          Rect[] a = new Rect[num];
          if(num == 0)
              return a;
          int buff[] = new int[num * _channels];
          get(0, 0, buff); //TODO: check ret val!
          for(int i=0; i<num; i++)
              a[i] = new Rect(buff[i*_channels], buff[i*_channels+1], buff[i*_channels+2], buff[i*_channels+3]);
          return a;
      }
      public void fromList(List<Rect> lr) {
          Rect ap[] = lr.toArray(new Rect[0]);
          fromArray(ap);
      }
  
      public List<Rect> toList() {
          Rect[] ar = toArray();
          return Arrays.asList(ar);
      }
  }
  