mirrors/mapnik
1
0
Fork 0
mirror of https://github.com/mapnik/mapnik.git synced 2026-04-03 15:22:14 +02:00
Code Issues Projects Releases Wiki Activity
mapnik/test/unit/color/css_color.cpp
Mathis Logemann ab626ac052 update pre-commit and format sources
2024-05-18 10:22:29 +02:00

346 lines
13 KiB
C++
Raw Permalink Blame History

#include "catch.hpp"
#include <mapnik/safe_cast.hpp>
#include <mapnik/color.hpp>
#include <mapnik/css/css_color_grammar_x3.hpp>
#include <mapnik/css/css_color_grammar_x3_def.hpp>
#include <sstream>
TEST_CASE("CSS color")
{
SECTION("conversions")
{
using namespace mapnik::css_color_grammar;
CHECK(percent_converter::call(1.0) == 3);
CHECK(percent_converter::call(60.0) == 153);
CHECK(percent_converter::call(10) == 26);
CHECK(percent_converter::call(35) == 89);
CHECK(percent_converter::call(35.4999) == 91);
// should not overflow on invalid input
CHECK(percent_converter::call(100000.0) == 255);
CHECK(percent_converter::call(-100000.0) == 0);
}
SECTION("CSS colors")
{
auto const& color_grammar = mapnik::css_color_grammar::css_color;
boost::spirit::x3::ascii::space_type space;
{
// rgb
std::string s("rgb(128,0,255)");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0xff);
CHECK(c.red() == 0x80);
CHECK(c.green() == 0x00);
CHECK(c.blue() == 0xff);
}
{
// rgb (percent)
std::string s1("rgb(50%,0%,100%)");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s1.cbegin(), s1.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0xff);
CHECK(c.red() == 0x80);
CHECK(c.green() == 0x00);
CHECK(c.blue() == 0xff);
// rgb (fractional percent)
std::string s2("rgb(50.5%,0.5%,99.5%)"); // #8101fe
CHECK(boost::spirit::x3::phrase_parse(s2.cbegin(), s2.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0xff);
CHECK(c.red() == 0x81);
CHECK(c.green() == 0x01);
CHECK(c.blue() == 0xfe);
}
{
// rgba
std::string s("rgba(128,0,255,0.5)");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0x80);
CHECK(c.red() == 0x80);
CHECK(c.green() == 0x00);
CHECK(c.blue() == 0xff);
}
{
// rgba (percent)
std::string s1("rgba(50%,0%,100%,0.5)");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s1.cbegin(), s1.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0x80);
CHECK(c.red() == 0x80);
CHECK(c.green() == 0x00);
CHECK(c.blue() == 0xff);
// rgba (fractional percent)
std::string s2("rgb(50.5%,0.5%,99.5%)"); // #8101fe80
CHECK(boost::spirit::x3::phrase_parse(s2.cbegin(), s2.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0x80);
CHECK(c.red() == 0x81);
CHECK(c.green() == 0x01);
CHECK(c.blue() == 0xfe);
}
{
// named colours
std::string s("darksalmon");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 255);
CHECK(c.red() == 233);
CHECK(c.green() == 150);
CHECK(c.blue() == 122);
}
// hsl
{
std::string s("hsl(240,50%,50%)");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 255);
CHECK(c.red() == 64);
CHECK(c.green() == 64);
CHECK(c.blue() == 191);
}
// hsl (fractional percent)
{
std::string s("hsl(240,50.5%,49.5%)"); // Color(R=62,G=62,B=190,A=255)
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 255);
CHECK(c.red() == 62);
CHECK(c.green() == 62);
CHECK(c.blue() == 190);
}
// hsl (hue range 0..360)
{
std::string s1("hsl(0, 100%, 50%)");
std::string s2("hsl(120, 100%, 50%)");
std::string s3("hsl(240, 100%, 50%)");
std::string s4("hsl(360, 100%, 50%)");
std::string s5("hsl(480, 100%, 50%)"); // larger values are
std::string s6("hsl(600, 100%, 50%)"); // normalised to fit into 0..360
mapnik::color c1, c2, c3, c4, c5, c6;
CHECK(boost::spirit::x3::phrase_parse(s1.cbegin(), s1.cend(), color_grammar, space, c1));
CHECK(boost::spirit::x3::phrase_parse(s2.cbegin(), s2.cend(), color_grammar, space, c2));
CHECK(boost::spirit::x3::phrase_parse(s3.cbegin(), s3.cend(), color_grammar, space, c3));
CHECK(boost::spirit::x3::phrase_parse(s4.cbegin(), s4.cend(), color_grammar, space, c4));
CHECK(boost::spirit::x3::phrase_parse(s5.cbegin(), s5.cend(), color_grammar, space, c5));
CHECK(boost::spirit::x3::phrase_parse(s6.cbegin(), s6.cend(), color_grammar, space, c6));
CHECK(c1 == mapnik::color("red"));
CHECK(c2 == mapnik::color("lime"));
CHECK(c3 == mapnik::color("blue"));
CHECK(c1 == c4);
CHECK(c2 == c5);
CHECK(c3 == c6);
}
// hsla
{
std::string s("hsla(240,50%,50%,0.5)");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 128);
CHECK(c.red() == 64);
CHECK(c.green() == 64);
CHECK(c.blue() == 191);
}
// hsla (fractional percent)
{
std::string s("hsla(240,50.5%,49.5%,0.5)"); // Color(R=62,G=62,B=190,A=128)
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 128);
CHECK(c.red() == 62);
CHECK(c.green() == 62);
CHECK(c.blue() == 190);
}
// hsla (hue range 0..360)
{
std::string s1("hsla(0, 100%, 50%, 1)");
std::string s2("hsla(120, 100%, 50%, 1)");
std::string s3("hsla(240, 100%, 50%, 1)");
std::string s4("hsla(360, 100%, 50%, 1)");
std::string s5("hsla(480, 100%, 50%, 1)"); // larger values are
std::string s6("hsla(600, 100%, 50%, 1)"); // normalised to fit into 0..360
mapnik::color c1, c2, c3, c4, c5, c6;
CHECK(boost::spirit::x3::phrase_parse(s1.cbegin(), s1.cend(), color_grammar, space, c1));
CHECK(boost::spirit::x3::phrase_parse(s2.cbegin(), s2.cend(), color_grammar, space, c2));
CHECK(boost::spirit::x3::phrase_parse(s3.cbegin(), s3.cend(), color_grammar, space, c3));
CHECK(boost::spirit::x3::phrase_parse(s4.cbegin(), s4.cend(), color_grammar, space, c4));
CHECK(boost::spirit::x3::phrase_parse(s5.cbegin(), s5.cend(), color_grammar, space, c5));
CHECK(boost::spirit::x3::phrase_parse(s6.cbegin(), s6.cend(), color_grammar, space, c6));
CHECK(c1 == mapnik::color("red"));
CHECK(c2 == mapnik::color("lime"));
CHECK(c3 == mapnik::color("blue"));
CHECK(c1 == c4);
CHECK(c2 == c5);
CHECK(c3 == c6);
}
// hex colours
{
std::string s("#abcdef");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0xff);
CHECK(c.red() == 0xab);
CHECK(c.green() == 0xcd);
CHECK(c.blue() == 0xef);
}
{
std::string s("#abcdef12");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0x12);
CHECK(c.red() == 0xab);
CHECK(c.green() == 0xcd);
CHECK(c.blue() == 0xef);
}
{
std::string s(" #abcdef");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0xff);
CHECK(c.red() == 0xab);
CHECK(c.green() == 0xcd);
CHECK(c.blue() == 0xef);
}
{
std::string s(" #abcdef12");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0x12);
CHECK(c.red() == 0xab);
CHECK(c.green() == 0xcd);
CHECK(c.blue() == 0xef);
}
{
std::string s("# abcdef");
mapnik::color c;
CHECK(!boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
}
{
std::string s("# abcdef12");
mapnik::color c;
CHECK(!boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
}
{
std::string s("#ab cdef");
mapnik::color c;
CHECK(!boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
}
{
std::string s("#ab cdef12");
mapnik::color c;
CHECK(!boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
}
// hex_color_small
{
std::string s("#abc");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0xff);
CHECK(c.red() == 0xaa);
CHECK(c.green() == 0xbb);
CHECK(c.blue() == 0xcc);
}
{
std::string s("#abcd");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0xdd);
CHECK(c.red() == 0xaa);
CHECK(c.green() == 0xbb);
CHECK(c.blue() == 0xcc);
}
{
std::string s(" #abc");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0xff);
CHECK(c.red() == 0xaa);
CHECK(c.green() == 0xbb);
CHECK(c.blue() == 0xcc);
}
{
std::string s(" #abcd");
mapnik::color c;
CHECK(boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
CHECK(c.alpha() == 0xdd);
CHECK(c.red() == 0xaa);
CHECK(c.green() == 0xbb);
CHECK(c.blue() == 0xcc);
}
{
std::string s("# abc");
mapnik::color c;
CHECK(!boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
}
{
std::string s("# abcd");
mapnik::color c;
CHECK(!boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
}
{
std::string s("#a bc");
mapnik::color c;
CHECK(!boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
}
{
std::string s("#a bcd");
mapnik::color c;
CHECK(!boost::spirit::x3::phrase_parse(s.cbegin(), s.cend(), color_grammar, space, c));
}
}
SECTION("operator<< / to_string()")
{
mapnik::color c("salmon");
std::ostringstream ss;
ss << c;
CHECK(ss.str() == "rgb(250,128,114)");
c.set_alpha(127);
ss.seekp(0);
ss << c;
CHECK(ss.str() == "rgba(250,128,114,0.498)");
}
SECTION("operator= operator==")
{
mapnik::color c1("cornflowerblue", true);
mapnik::color c2 = c1; // make copy
CHECK(c1.red() == c2.red());
CHECK(c1.green() == c2.green());
CHECK(c1.blue() == c2.blue());
CHECK(c1.get_premultiplied() == c2.get_premultiplied());
CHECK(c1 == c2);
c1.demultiply();
CHECK(c1 != c2);
CHECK(c1.get_premultiplied() != c2.get_premultiplied());
}
SECTION("premultiply/demultiply")
{
mapnik::color c("cornflowerblue");
c.set_alpha(127);
c.premultiply();
CHECK(int(c.red()) == 50);
CHECK(int(c.green()) == 74);
CHECK(int(c.blue()) == 118);
CHECK(int(c.alpha()) == 127);
c.demultiply();
CHECK(c == mapnik::color(100, 148, 236, 127));
}
}
Reference in a new issue View git blame Copy permalink