# -*- mode: perl; coding: utf-8; tab-width: 4 -*-
use strict;
use Test::More qw(no_plan);
# use Test::More tests => 13;
BEGIN {
use_ok('Cv', -more);
}
my $verbose = Cv->hasGUI;
my $window = $0;
if (1) {
my $image = Cv::Image->new([240, 320], CV_8UC3)->zero;
if ($verbose) {
Cv->NamedWindow($window);
Cv->CreateTrackbar("trackbar1", $window, my $v1 = 0, 255, \&onChange1);
Cv->CreateTrackbar("trackbar2", $window, my $v2 = 255, 255, \&onChange2);
$image->ShowImage($window);
foreach (0 .. 255) {
Cv->SetTrackbarPos("trackbar1", $window, $_);
Cv->WaitKey(10);
}
Cv->DestroyWindow($window);
Cv->WaitKey(1000);
}
}
if (1) {
my $image = Cv::Image->new([240, 320], CV_8UC3)->zero;
if ($verbose) {
Cv->NamedWindow($window);
Cv->CreateTrackbar("trackbar1", $window, my $v1 = 0, 255, \&onChange1);
Cv->CreateTrackbar("trackbar2", $window, my $v2 = 255, 255, \&onChange2);
$image->ShowImage($window);
foreach (0 .. 255) {
Cv->SetTrackbarPos("trackbar1", $window, $_);
Cv->WaitKey(10);
}
Cv->DestroyWindow($window);
Cv->WaitKey(1000);
}
}
sub onChange1 {
# print STDERR join(', ', @_), "\n";
Cv->SetTrackbarPos("trackbar2", $window, 255 - $_[0]);
}
sub onChange2 {
# print STDERR join(', ', @_), "\n";
Cv->SetTrackbarPos("trackbar1", $window, 255 - $_[0]);
}