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/*
* Xournal++
*
* This file is part of the Xournal UnitTests
*
* @author Xournal++ Team
* https://github.com/xournalpp/xournalpp
*
* @license GNU GPLv2 or later
*/
#include <cstdint>
#include <gtest/gtest.h>
#include "util/Color.h"
using namespace std;
bool operator==(GdkRGBA const& lhs, GdkRGBA const& rhs) noexcept {
auto tieer = [](GdkRGBA const& val) { return std::tie(val.red, val.blue, val.green, val.alpha); };
return tieer(lhs) == tieer(rhs);
}
std::ostream& operator<<(std::ostream& os, GdkRGBA const& val) {
return os << "GdkRGBA{" << val.red << "," << val.green << "," << val.blue << "," << val.alpha << "}";
}
TEST(UtilColor, testColorToRGB) {
Color color1{0U};
Color color2{0xffffffU};
Color color3{0x7f7f7fU};
Color color4{0x808080U};
auto rgb1 = GdkRGBA{0.0, 0.0, 0.0, 1.0};
auto rgb2 = GdkRGBA{1, 1, 1, 1.0};
auto rgb3 = GdkRGBA{0.5, 0.5, 0.5, 1.0};
auto rgb_t1 = Util::rgb_to_GdkRGBA(color1);
EXPECT_EQ(rgb1, rgb_t1);
auto rgb_t2 = Util::rgb_to_GdkRGBA(color2);
EXPECT_EQ(rgb2, rgb_t2);
auto rgb_t4 = Util::rgb_to_GdkRGBA(color4);
auto rgb_t3 = Util::rgb_to_GdkRGBA(color3);
auto rgb_t5 = GdkRGBA{(rgb_t3.red + rgb_t4.red) / 2, (rgb_t3.green + rgb_t4.green) / 2,
(rgb_t3.blue + rgb_t4.blue) / 2, 1};
EXPECT_EQ(rgb3, rgb_t5);
}
TEST(UtilColor, testColorToRGBAndBack) {
for (size_t i = 0U; i < 256U; ++i) {
uint8_t ii = static_cast<uint8_t>(i);
Color color{ii, ii, ii};
Color color2{ii, ii, ii, ii};
EXPECT_EQ(color, Util::GdkRGBA_to_rgb(Util::rgb_to_GdkRGBA(color)));
EXPECT_EQ(color2, Util::GdkRGBA_to_argb(Util::argb_to_GdkRGBA(color2)));
}
}
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