2341d510d3
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com> Co-authored-by: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
103 lines
3.2 KiB
C++
103 lines
3.2 KiB
C++
#pragma once
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#include "esphome/core/color.h"
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#include "esphome/core/datatypes.h"
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#include "esphome/core/defines.h"
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#ifdef USE_DISPLAY
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#include "esphome/components/display/display.h"
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#endif
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#ifdef USE_LVGL_FONT
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#include <lvgl.h>
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#endif
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namespace esphome {
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namespace font {
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class Font;
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class Glyph {
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public:
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constexpr Glyph(uint32_t code_point, const uint8_t *data, int advance, int offset_x, int offset_y, int width,
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int height)
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: code_point(code_point),
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data(data),
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advance(advance),
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offset_x(offset_x),
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offset_y(offset_y),
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width(width),
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height(height) {}
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bool is_less_or_equal(uint32_t other) const { return this->code_point <= other; }
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const uint32_t code_point;
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const uint8_t *data;
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int advance;
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int offset_x;
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int offset_y;
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int width;
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int height;
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};
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class Font
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#ifdef USE_DISPLAY
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: public display::BaseFont
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#endif
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{
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public:
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/** Construct the font with the given glyphs.
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*
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* @param data A list of glyphs, must be sorted lexicographically.
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* @param data_nr The number of glyphs
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* @param baseline The y-offset from the top of the text to the baseline.
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* @param height The y-offset from the top of the text to the bottom.
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* @param descender The y-offset from the baseline to the lowest stroke in the font (e.g. from letters like g or p).
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* @param xheight The height of lowercase letters, usually measured at the "x" glyph.
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* @param capheight The height of capital letters, usually measured at the "X" glyph.
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* @param bpp The bits per pixel used for this font. Used to read data out of the glyph bitmaps.
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*/
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Font(const Glyph *data, int data_nr, int baseline, int height, int descender, int xheight, int capheight,
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uint8_t bpp = 1);
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const Glyph *find_glyph(uint32_t codepoint) const;
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#ifdef USE_DISPLAY
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void print(int x_start, int y_start, display::Display *display, Color color, const char *text,
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Color background) override;
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void measure(const char *str, int *width, int *x_offset, int *baseline, int *height) override;
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#endif
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inline int get_baseline() { return this->baseline_; }
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inline int get_height() { return this->height_; }
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inline int get_ascender() { return this->baseline_; }
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inline int get_descender() { return this->descender_; }
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inline int get_linegap() { return this->linegap_; }
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inline int get_xheight() { return this->xheight_; }
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inline int get_capheight() { return this->capheight_; }
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inline int get_bpp() { return this->bpp_; }
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#ifdef USE_LVGL_FONT
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const lv_font_t *get_lv_font() const { return &this->lv_font_; }
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#endif
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const ConstVector<Glyph> &get_glyphs() const { return glyphs_; }
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protected:
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ConstVector<Glyph> glyphs_;
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int baseline_;
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int height_;
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int descender_;
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int linegap_;
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int xheight_;
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int capheight_;
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uint8_t bpp_; // bits per pixel
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#ifdef USE_LVGL_FONT
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lv_font_t lv_font_{};
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static const void *get_glyph_bitmap(lv_font_glyph_dsc_t *dsc, lv_draw_buf_t *draw_buf);
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static bool get_glyph_dsc_cb(const lv_font_t *font, lv_font_glyph_dsc_t *dsc, uint32_t unicode_letter, uint32_t next);
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const Glyph *get_glyph_data_(uint32_t unicode_letter);
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uint32_t last_letter_{};
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const Glyph *last_data_{};
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#endif
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};
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} // namespace font
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} // namespace esphome
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