kicad/qa/common/wximage_test_utils.cpp

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2019 KiCad Developers, see CHANGELOG.TXT for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#include "wximage_test_utils.h"

#include "color4d_test_utils.h"


namespace KI_TEST
{
/**
 * Predicate to check an image pixel matches color and alpha
 *
 * @param  aImage  the image to check
 * @param  aX      pixel x-coordinate
 * @param  aY      pixel y-coordinate
 * @param  aColor  expected color (alpha is 1.0 if image doesn't support alpha)
 * @return         true if colour match
 */
bool IsImagePixelOfColor( const wxImage& aImage, int aX, int aY, const KIGFX::COLOR4D& aColor )
{
    const wxSize imageSize = aImage.GetSize();

    if( imageSize.x < aX || imageSize.y < aY )
    {
        BOOST_TEST_INFO( "Pixel (" << aX << ", " << aY << "is not in image of size (" << imageSize.x
                                   << ", " << imageSize.y << ")" );
        return false;
    }

    const int r = aImage.GetRed( aX, aY );
    const int g = aImage.GetGreen( aX, aY );
    const int b = aImage.GetBlue( aX, aY );

    const int a = aImage.HasAlpha() ? aImage.GetAlpha( aX, aY ) : 255;

    if( !KI_TEST::IsColorNearHex( aColor, r, g, b, a ) )
    {
        BOOST_TEST_INFO( "Colour doesn't match: got rgba(" << r << ", " << g << ", " << b << ", "
                                                           << a << "), expected " << aColor );
        return false;
    }

    return true;
}

} // namespace KI_TEST


namespace BOOST_TEST_PRINT_NAMESPACE_OPEN
{
void print_log_value<wxImage>::operator()( std::ostream& os, wxImage const& aImage )
{
    const wxSize size = aImage.GetSize();
    os << "wxImage[" << size.x << "x" << size.y << "]";
}
} // namespace BOOST_TEST_PRINT_NAMESPACE_OPEN
BOOST_TEST_PRINT_NAMESPACE_CLOSE