kopia lustrzana https://github.com/pimoroni/pimoroni-pico
74 wiersze
1.7 KiB
C++
74 wiersze
1.7 KiB
C++
#include <cstdint>
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#include <math.h>
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#include <string.h>
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#include <algorithm>
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#include <vector>
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#include <optional>
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#include <map>
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#include "pretty-poly.h"
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#include "file_io.hpp"
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namespace alright_fonts {
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struct glyph_t {
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uint16_t codepoint;
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pp_rect_t bounds;
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uint8_t advance;
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pp_poly_t contours;
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};
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struct face_t {
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uint16_t glyph_count;
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uint16_t flags;
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std::map<uint16_t, glyph_t> glyphs;
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face_t() {};
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face_t(file_io &ifs) {load(ifs);}
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face_t(std::string_view path) {load(path);}
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bool load(file_io &ifs);
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bool load(std::string_view path);
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};
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enum alignment_t {
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left = 0,
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center = 1,
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right = 2,
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justify = 4,
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top = 8,
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bottom = 16
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};
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struct text_metrics_t {
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face_t face; // font to write in
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int size; // text size in pixels
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uint scroll; // vertical scroll offset
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int line_height; // spacing between lines (%)
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int letter_spacing; // spacing between characters
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int word_spacing; // spacing between words
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alignment_t align; // horizontal and vertical alignment
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//optional<mat3_t> transform; // arbitrary transformation
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pp_antialias_t antialiasing = PP_AA_X4; // level of antialiasing to apply
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void set_size(int s) {
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size = s;
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line_height = size;
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letter_spacing = 0;
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word_spacing = size / 2;
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}
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text_metrics_t() {};
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};
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/*
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utility functions
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*/
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pp_rect_t measure_character(text_metrics_t &tm, uint16_t codepoint);
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/*
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render functions
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*/
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void render_character(text_metrics_t &tm, uint16_t codepoint, pp_point_t origin, pp_mat3_t *transform);
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} |