315 lines
7.6 KiB
C++
315 lines
7.6 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2018-2019 KiCad Developers, see CHANGELOG.TXT for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <boost/test/unit_test.hpp>
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#include "color4d_test_utils.h"
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#include <unit_test_utils/unit_test_utils.h>
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#include <gal/color4d.h>
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#ifdef WX_COMPATIBILITY
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#include <wx/colour.h>
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#endif
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// All these tests are of a class in KIGFX
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using namespace KIGFX;
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/**
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* Declares a struct as the Boost test fixture.
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*/
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BOOST_AUTO_TEST_SUITE( Color4D )
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/**
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* Check basic setting and getting of values
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*/
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BOOST_AUTO_TEST_CASE( BasicOps )
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{
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const auto c = COLOR4D{ 0.4, 0.5, 0.6, 0.7 };
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BOOST_CHECK_EQUAL( c.r, 0.4 );
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BOOST_CHECK_EQUAL( c.g, 0.5 );
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BOOST_CHECK_EQUAL( c.b, 0.6 );
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BOOST_CHECK_EQUAL( c.a, 0.7 );
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const auto copied = c;
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// Test equality
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BOOST_CHECK_EQUAL( c, copied );
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const auto c2 = COLOR4D{ 0.1, 0.2, 0.3, 0.4 };
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// Test inequality
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BOOST_CHECK_NE( c, c2 );
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}
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/**
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* Test case data for a test that takes a colour and a scalar factor
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* and returns a result.
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*/
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struct COLOR_SCALAR_CASE
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{
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COLOR4D start;
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double factor;
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COLOR4D expected;
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};
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/**
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* Check inversion
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*/
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BOOST_AUTO_TEST_CASE( Invert )
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{
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// Inverts RGB, A is the same
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static const std::vector<COLOR_SCALAR_CASE> cases = {
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{ { 0.0, 0.25, 1.0, 1.0 }, 0.0, { 1.0, 0.75, 0.0, 1.0 } },
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};
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for( const auto& c : cases )
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{
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auto col = c.start;
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const auto inverted = col.Inverted();
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BOOST_CHECK_EQUAL( inverted, c.expected );
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// Test in-place function
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col.Invert();
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BOOST_CHECK_EQUAL( col, c.expected );
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}
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}
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/**
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* Check inversion
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*/
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BOOST_AUTO_TEST_CASE( Brighten )
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{
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static const std::vector<COLOR_SCALAR_CASE> cases = {
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{ { 0.0, 0.0, 0.0, 1.0 }, 0.5, { 0.5, 0.5, 0.5, 1.0 } },
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{ { 0.0, 0.5, 1.0, 1.0 }, 0.5, { 0.5, 0.75, 1.0, 1.0 } },
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};
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for( const auto& c : cases )
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{
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auto col = c.start;
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const auto brightened = col.Brightened( c.factor );
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BOOST_CHECK_EQUAL( brightened, c.expected );
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// Test in-place function
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col.Brighten( c.factor );
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BOOST_CHECK_EQUAL( col, c.expected );
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}
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}
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/**
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* Check darken
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*/
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BOOST_AUTO_TEST_CASE( Darken )
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{
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static const std::vector<COLOR_SCALAR_CASE> cases = {
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{ { 0.0, 0.0, 0.0, 1.0 }, 0.5, { 0.0, 0.0, 0.0, 1.0 } },
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{ { 1.0, 1.0, 1.0, 1.0 }, 0.5, { 0.5, 0.5, 0.5, 1.0 } },
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};
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for( const auto& c : cases )
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{
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auto col = c.start;
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const auto brightened = col.Darkened( c.factor );
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BOOST_CHECK_EQUAL( brightened, c.expected );
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// Test in-place function
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col.Darken( c.factor );
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BOOST_CHECK_EQUAL( col, c.expected );
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}
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}
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/**
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* Check alpha setting
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*/
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BOOST_AUTO_TEST_CASE( WithAlpha )
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{
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static const std::vector<COLOR_SCALAR_CASE> cases = {
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{ { 0.0, 0.0, 0.0, 1.0 }, 0.5, { 0.0, 0.0, 0.0, 0.5 } },
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{ { 0.0, 0.5, 1.0, 1.0 }, 0.5, { 0.0, 0.5, 1.0, 0.5 } },
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};
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for( const auto& c : cases )
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{
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auto col = c.start;
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const auto with_alpha = col.WithAlpha( c.factor );
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BOOST_CHECK_EQUAL( with_alpha, c.expected );
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}
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// Note: If COLOR4D::WithAlpha raised an exception, we could check
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// the bounds-checking with BOOST_REQUIRE_THROW,
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// but it assert()s, so we can't.
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}
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struct FROM_HSV_TO_HEX_CASE
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{
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double h;
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double s;
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double v;
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unsigned char r;
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unsigned char g;
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unsigned char b;
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};
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/**
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* Check FromHSV
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*/
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BOOST_AUTO_TEST_CASE( FromHsv )
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{
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static const std::vector<FROM_HSV_TO_HEX_CASE> cases = {
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{ 10, 0.71, 0.66, 168, 69, 49 },
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{ 15, 0.96, 0.34, 87, 24, 3 },
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{ 120, 0.50, 0.50, 64, 128, 64 },
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{ 190, 0.32, 0.97, 168, 234, 247 },
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{ 240, 0.15, 0.75, 163, 163, 191 },
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{ 240, 0.90, 0.75, 19, 19, 191 },
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{ 310, 0.71, 0.66, 168, 49, 148 },
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{ 331, 0.15, 0.85, 217, 184, 200 },
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};
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for( const auto& c : cases )
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{
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auto col = COLOR4D{};
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col.FromHSV( c.h, c.s, c.v );
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double new_h, new_s, new_v;
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col.ToHSV( new_h, new_s, new_v );
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const unsigned char alpha = 0xFF;
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BOOST_CHECK_PREDICATE( KI_TEST::IsColorNearHex, ( col )( c.r )( c.g )( c.b )( alpha ) );
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BOOST_CHECK_CLOSE( c.h, new_h, 0.0001 );
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BOOST_CHECK_CLOSE( c.s, new_s, 0.0001 );
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BOOST_CHECK_CLOSE( c.v, new_v, 0.0001 );
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}
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}
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struct FROM_HSL_TO_HEX_CASE
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{
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double h;
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double s;
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double l;
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unsigned char r;
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unsigned char g;
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unsigned char b;
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};
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/**
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* Check FromHSL
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*/
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BOOST_AUTO_TEST_CASE( FromHsl )
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{
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static const std::vector<FROM_HSL_TO_HEX_CASE> cases = {
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{ 10, 0.71, 0.66, 230, 127, 107 },
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{ 15, 0.96, 0.34, 170, 45, 3 },
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{ 120, 0.5, 0.5, 64, 191, 64 },
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{ 190, 0.32, 0.97, 245, 249, 250 },
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{ 240, 0.15, 0.75, 182, 182, 201 },
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{ 240, 0.90, 0.75, 134, 134, 249 },
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{ 310, 0.71, 0.66, 230, 107, 209 },
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{ 331, 0.15, 0.85, 222, 211, 217 },
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};
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for( const auto& c : cases )
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{
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auto col = COLOR4D{};
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col.FromHSL( c.h, c.s, c.l );
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double new_h, new_s, new_l;
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col.ToHSL( new_h, new_s, new_l );
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const unsigned char alpha = 0xFF;
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BOOST_CHECK_PREDICATE( KI_TEST::IsColorNearHex, ( col )( c.r )( c.g )( c.b )( alpha ) );
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BOOST_CHECK_CLOSE( c.h, new_h, 0.0001 );
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BOOST_CHECK_CLOSE( c.s, new_s, 0.0001 );
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BOOST_CHECK_CLOSE( c.l, new_l, 0.0001 );
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}
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}
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#ifdef WX_COMPATIBILITY
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struct WX_CONV_CASE
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{
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wxColour wx;
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COLOR4D c4d;
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};
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static std::vector<WX_CONV_CASE> wx_conv_cases = {
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{ { 0x00, 0x00, 0x00, 0x00 }, { 0.0, 0.0, 0.0, 0.0 } },
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{ { 0x66, 0x80, 0x99, 0xB3 }, { 0.4, 0.5, 0.6, 0.7 } },
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{ { 0xFF, 0xFF, 0xFF, 0xFF }, { 1.0, 1.0, 1.0, 1.0 } },
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{ { 0xFF, 0x00, 0x00, 0xFF }, { 0.999, 0.001, 0.0, 1.0 } },
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};
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/**
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* Check conversion to WxColour
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*/
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BOOST_AUTO_TEST_CASE( ToWx )
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{
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for( const auto& c : wx_conv_cases )
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{
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wxColour wx_col = c.c4d.ToColour();
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// A hack, but avoids having to define a custom operator<<
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BOOST_CHECK_EQUAL( wx_col.Red(), c.wx.Red() );
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BOOST_CHECK_EQUAL( wx_col.Green(), c.wx.Green() );
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BOOST_CHECK_EQUAL( wx_col.Blue(), c.wx.Blue() );
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BOOST_CHECK_EQUAL( wx_col.Alpha(), c.wx.Alpha() );
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}
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}
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/**
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* Check conversion from WxColour
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*/
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BOOST_AUTO_TEST_CASE( FromWx )
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{
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const double tol = 0.5 / 255.0; // One bit of quantised error
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for( const auto& c : wx_conv_cases )
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{
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const auto col = COLOR4D{ c.wx };
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BOOST_CHECK_PREDICATE( KI_TEST::IsColorNear, ( col )( c.c4d )( tol ) );
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}
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}
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#endif // WX_COMPATIBILITY
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BOOST_AUTO_TEST_SUITE_END()
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