# -*- mode: perl; coding: utf-8; tab-width: 4 -*-

use strict;
use warnings;
use Test::More qw(no_plan);
# use Test::More tests => 22;
BEGIN { use_ok('Cv') }

sub xy {
	sprintf("(%d, %d)", map { ref $_ ? @$_ : $_ } @_);
}

sub Sort {
	my @pts = sort {
		$a->[1] <=> $b->[1] || $a->[0] <=> $b->[0]
	} map { [ int($_->[0] + 0.5), int($_->[1] + 0.5) ] } @_;
	@pts[0, 1, 3, 2];
}

my $verbose = Cv->hasGUI;

my $img = Cv::Mat->new([300, 300], CV_8UC3);
my @points = Sort([ 100, 100 ], [ 100, 200 ],
				  [ 200, 100 ], [ 200, 200 ]);

if (1) {
	my @vtx = Sort(Cv->boxPoints(Cv->MinAreaRect(@points)));
	is(xy($vtx[$_]), xy($points[$_])) for 0 .. 3;
	if ($verbose) {
		$img->zero;
		$img->circle($_, 3, cvScalar(0, 0, 255), CV_FILLED, CV_AA) for @points;
		$img->polyLine([ \@vtx ], 1, cvScalar(0, 255, 0), 1, CV_AA);
		$img->show("rect & circle");
		Cv->waitKey(1000);
	}
}

if (2) {
	my @vtx = Sort(Cv->boxPoints(Cv->minAreaRect(\@points)));
	is(xy($vtx[$_]), xy($points[$_])) for 0 .. 3;
}