45 lines
829 B
C
45 lines
829 B
C
#pragma once
|
|
|
|
#include <stdint.h>
|
|
#include <u8g2.h>
|
|
|
|
typedef enum {
|
|
ColorWhite = 0x00,
|
|
ColorBlack = 0x01,
|
|
} Color;
|
|
|
|
typedef const uint8_t* Font;
|
|
|
|
typedef struct {
|
|
Font primary;
|
|
Font secondary;
|
|
} Fonts;
|
|
|
|
struct _CanvasApi;
|
|
|
|
typedef struct _CanvasApi CanvasApi;
|
|
|
|
// Canvas is private but we need its declaration here
|
|
typedef struct {
|
|
u8g2_t fb;
|
|
uint8_t offset_x;
|
|
uint8_t offset_y;
|
|
uint8_t width;
|
|
uint8_t height;
|
|
} Canvas;
|
|
|
|
struct _CanvasApi {
|
|
Canvas canvas;
|
|
Fonts* fonts;
|
|
|
|
uint8_t (*width)(CanvasApi* canvas);
|
|
uint8_t (*height)(CanvasApi* canvas);
|
|
|
|
void (*clear)(CanvasApi* canvas);
|
|
|
|
void (*set_color)(CanvasApi* canvas, Color color);
|
|
void (*set_font)(CanvasApi* canvas, Font font);
|
|
|
|
void (*draw_str)(CanvasApi* canvas, uint8_t x, uint8_t y, const char* str);
|
|
};
|