mirror of https://github.com/esphome/esphome.git
69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
#pragma once
|
|
|
|
#include "esphome/core/datatypes.h"
|
|
#include "esphome/core/color.h"
|
|
#include "esphome/components/display/display_buffer.h"
|
|
|
|
namespace esphome {
|
|
namespace font {
|
|
|
|
class Font;
|
|
|
|
struct GlyphData {
|
|
const uint8_t *a_char;
|
|
const uint8_t *data;
|
|
int offset_x;
|
|
int offset_y;
|
|
int width;
|
|
int height;
|
|
};
|
|
|
|
class Glyph {
|
|
public:
|
|
Glyph(const GlyphData *data) : glyph_data_(data) {}
|
|
|
|
const uint8_t *get_char() const;
|
|
|
|
bool compare_to(const uint8_t *str) const;
|
|
|
|
int match_length(const uint8_t *str) const;
|
|
|
|
void scan_area(int *x1, int *y1, int *width, int *height) const;
|
|
|
|
protected:
|
|
friend Font;
|
|
|
|
const GlyphData *glyph_data_;
|
|
};
|
|
|
|
class Font : public display::BaseFont {
|
|
public:
|
|
/** Construct the font with the given glyphs.
|
|
*
|
|
* @param glyphs A vector of glyphs, must be sorted lexicographically.
|
|
* @param baseline The y-offset from the top of the text to the baseline.
|
|
* @param bottom The y-offset from the top of the text to the bottom (i.e. height).
|
|
*/
|
|
Font(const GlyphData *data, int data_nr, int baseline, int height, uint8_t bpp = 1);
|
|
|
|
int match_next_glyph(const uint8_t *str, int *match_length);
|
|
|
|
void print(int x_start, int y_start, display::Display *display, Color color, const char *text,
|
|
Color background) override;
|
|
void measure(const char *str, int *width, int *x_offset, int *baseline, int *height) override;
|
|
inline int get_baseline() { return this->baseline_; }
|
|
inline int get_height() { return this->height_; }
|
|
inline int get_bpp() { return this->bpp_; }
|
|
|
|
const std::vector<Glyph, ExternalRAMAllocator<Glyph>> &get_glyphs() const { return glyphs_; }
|
|
|
|
protected:
|
|
std::vector<Glyph, ExternalRAMAllocator<Glyph>> glyphs_;
|
|
int baseline_;
|
|
int height_;
|
|
uint8_t bpp_; // bits per pixel
|
|
};
|
|
|
|
} // namespace font
|
|
} // namespace esphome
|