/* epd.h - E-Paper Display library API */

#ifndef EPD_FONT_H_
#define EPD_FONT_H_

/* Includes */
#include "epd.h"
#include "epd_fonts.h"

/* Definitions */
#define EPD_FONT_HEIGHT_MODE_TEXT 0
#define EPD_FONT_HEIGHT_MODE_XTEXT 1
#define EPD_FONT_HEIGHT_MODE_ALL 2

/* Data Structures */
typedef struct epd_s epd_t;
typedef struct epd_fontcfg_s
{
	/* offset 0 */
	uint8_t glyph_cnt;
	uint8_t bbx_mode;
	uint8_t bits_per_0;
	uint8_t bits_per_1;

	/* offset 4 */
	uint8_t bits_per_char_width;
	uint8_t bits_per_char_height;
	uint8_t bits_per_char_x;
	uint8_t bits_per_char_y;
	uint8_t bits_per_delta_x;

	/* offset 9 */
	int8_t max_char_width;
	int8_t max_char_height; /* overall height, NOT ascent. Instead ascent = max_char_height + y_offset */
	int8_t x_offset;
	int8_t y_offset;

	/* offset 13 */
	int8_t	ascent_A;
	int8_t	descent_g;	/* usually a negative value */
	int8_t	ascent_para;
	int8_t	descent_para;

	/* offset 17 */
	uint16_t start_pos_upper_A;
	uint16_t start_pos_lower_a;

	/* offset 21 */
#ifdef EPD_WITH_UNICODE
	uint16_t start_pos_unicode;
#endif
} epd_fontcfg_t;

/* Exported Variables */

/* Function Prototypes */
void epd_font_set(epd_t *epd, epd_font_t *font);
uint8_t epd_draw_str(epd_t *epd, uint32_t x, uint32_t y, const char *str);
uint8_t epd_draw_utf8(epd_t *epd, uint32_t x, uint32_t y, const char *str);

#endif /* EPD_FONT_H_ */