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#include "catch.hpp"
#include <mapnik/text/icu_shaper.hpp>
#include <mapnik/text/harfbuzz_shaper.hpp>
#include <mapnik/text/font_library.hpp>
#include <mapnik/unicode.hpp>
#include <mapnik/util/from_u8string.hpp>
namespace {
using mapnik::util::from_u8string;
void test_shaping(mapnik::font_set const& fontset,
mapnik::face_manager& fm,
std::vector<std::pair<unsigned, unsigned>> const& expected,
char const* str,
bool debug = false)
{
mapnik::transcoder tr("utf8");
std::map<unsigned, double> width_map;
mapnik::text_itemizer itemizer;
auto props = std::make_unique<mapnik::detail::evaluated_format_properties>();
props->fontset = fontset;
props->text_size = 32;
double scale_factor = 1;
auto ustr = tr.transcode(str);
auto length = ustr.length();
itemizer.add_text(ustr, props);
mapnik::text_line line(0, length);
mapnik::harfbuzz_shaper::shape_text(line, itemizer, width_map, fm, scale_factor, "");
std::size_t index = 0;
for (auto const& g : line)
{
if (debug)
{
if (index++ > 0)
std::cerr << ",";
std::cerr << "{" << g.glyph_index << ", "
<< g.char_index
//<< ", " << g.face->family_name() << ":" << g.face->style_name()
<< "}";
}
else
{
unsigned glyph_index, char_index;
CHECK(index < expected.size());
std::tie(glyph_index, char_index) = expected[index++];
REQUIRE(glyph_index == g.glyph_index);
REQUIRE(char_index == g.char_index);
}
}
}
} // namespace
TEST_CASE("shaping")
{
mapnik::freetype_engine::register_font("test/data/fonts/NotoSans-Regular.ttc");
mapnik::freetype_engine::register_fonts("test/data/fonts/Noto");
mapnik::font_set fontset("fontset");
for (auto const& name : mapnik::freetype_engine::face_names())
{
fontset.add_face_name(name);
}
mapnik::font_library fl;
mapnik::freetype_engine::font_file_mapping_type font_file_mapping;
mapnik::freetype_engine::font_memory_cache_type font_memory_cache;
mapnik::face_manager fm(fl, font_file_mapping, font_memory_cache);
{
std::vector<std::pair<unsigned, unsigned>> expected =
{{977, 0}, {1094, 3}, {1038, 4}, {1168, 4}, {9, 7}, {3, 8}, {11, 9}, {68, 10}, {69, 11}, {70, 12}, {12, 13}};
test_shaping(fontset, fm, expected, from_u8string(u8"སྤུ་ཧྲེང (abc)").c_str());
}
{
std::vector<std::pair<unsigned, unsigned>> expected =
{{977, 0}, {1094, 3}, {1038, 4}, {1168, 4}, {9, 7}, {3, 8}, {11, 9}, {0, 10}, {0, 11}, {0, 12}, {12, 13}};
test_shaping(fontset, fm, expected, from_u8string(u8"སྤུ་ཧྲེང (普兰镇)").c_str());
}
{
std::vector<std::pair<unsigned, unsigned>> expected =
{{68, 0}, {69, 1}, {70, 2}, {3, 3}, {11, 4}, {0, 5}, {0, 6}, {0, 7}, {12, 8}};
test_shaping(fontset, fm, expected, from_u8string(u8"abc (普兰镇)").c_str());
}
{
std::vector<std::pair<unsigned, unsigned>> expected =
{{68, 0}, {69, 1}, {70, 2}, {3, 3}, {11, 4}, {68, 5}, {69, 6}, {70, 7}, {12, 8}};
test_shaping(fontset, fm, expected, "abc (abc)");
}
{
// "ⵃⴰⵢ ⵚⵉⵏⴰⵄⵉ الحي الصناعي"
std::vector<std::pair<unsigned, unsigned>> expected = {
{0, 0}, {0, 1}, {0, 2}, {3, 3}, {0, 4}, {0, 5}, {0, 6}, {0, 7},
{0, 8}, {0, 9}, {3, 10}, {509, 22}, {481, 21}, {438, 20}, {503, 19}, {470, 18},
{496, 17}, {43, 16}, {3, 15}, {509, 14}, {454, 13}, {496, 12}, {43, 11}};
test_shaping(fontset, fm, expected, from_u8string(u8"ⵃⴰⵢ ⵚⵉⵏⴰⵄⵉ الحي الصناعي").c_str());
}
}
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