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