#pragma once #include #include #include #ifdef __cplusplus extern "C" { #endif typedef enum { ColorWhite = 0x00, ColorBlack = 0x01, } Color; typedef enum { FontPrimary = 0x00, FontSecondary = 0x01, FontGlyph = 0x02, FontKeyboard = 0x03 } Font; typedef enum { AlignLeft, AlignRight, AlignTop, AlignBottom, AlignCenter, } Align; typedef enum { CanvasOrientationHorizontal, CanvasOrientationVertical, } CanvasOrientation; typedef struct Canvas Canvas; /* * Canvas width * @return width in pixels. */ uint8_t canvas_width(Canvas* canvas); /* * Canvas height * @return height in pixels. */ uint8_t canvas_height(Canvas* canvas); /* * Get current font height * @return height in pixels. */ uint8_t canvas_current_font_height(Canvas* canvas); /* * Clear canvas, clear rendering buffer */ void canvas_clear(Canvas* canvas); /* * Set drawing color */ void canvas_set_color(Canvas* canvas, Color color); /* * Invert drawing color */ void canvas_invert_color(Canvas* canvas); /* * Set drawing font */ void canvas_set_font(Canvas* canvas, Font font); /* * Draw string at position of baseline defined by x, y. */ void canvas_draw_str(Canvas* canvas, uint8_t x, uint8_t y, const char* str); /* * Draw aligned string defined by x, y. * Align calculated from position of baseline, string width and ascent (height of the glyphs above the baseline) */ void canvas_draw_str_aligned( Canvas* canvas, uint8_t x, uint8_t y, Align horizontal, Align vertical, const char* str); /* * Get string width * @return width in pixels. */ uint16_t canvas_string_width(Canvas* canvas, const char* str); /* * Draw stateful icon at position defined by x,y. */ void canvas_draw_icon(Canvas* canvas, uint8_t x, uint8_t y, Icon* icon); /* * Draw stateless icon at position defined by x,y. */ void canvas_draw_icon_name(Canvas* canvas, uint8_t x, uint8_t y, IconName name); /* * Draw xbm icon of width, height at position defined by x,y. */ void canvas_draw_xbm( Canvas* canvas, uint8_t x, uint8_t y, uint8_t w, uint8_t h, const uint8_t* bitmap); /* * Draw dot at x,y */ void canvas_draw_dot(Canvas* canvas, uint8_t x, uint8_t y); /* * Draw box of width, height at x,y */ void canvas_draw_box(Canvas* canvas, uint8_t x, uint8_t y, uint8_t width, uint8_t height); /* * Draw frame of width, height at x,y */ void canvas_draw_frame(Canvas* canvas, uint8_t x, uint8_t y, uint8_t width, uint8_t height); /* * Draw line from x1,y1 to x2,y2 */ void canvas_draw_line(Canvas* canvas, uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2); /* * Draw circle at x,y with radius r */ void canvas_draw_circle(Canvas* canvas, uint8_t x, uint8_t y, uint8_t r); /* * Draw disc at x,y with radius r */ void canvas_draw_disc(Canvas* canvas, uint8_t x, uint8_t y, uint8_t r); /* * Draw glyph */ void canvas_draw_glyph(Canvas* canvas, uint8_t x, uint8_t y, uint16_t ch); /* * Set transparency mode */ void canvas_set_bitmap_mode(Canvas* canvas, bool alpha); #ifdef __cplusplus } #endif