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