mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-29 22:23:06 +00:00
86 lines
1.6 KiB
C
86 lines
1.6 KiB
C
/**
|
|
* @file canvas_i.h
|
|
* GUI: internal Canvas API
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "canvas.h"
|
|
#include <u8g2.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/** Canvas structure
|
|
*/
|
|
struct Canvas {
|
|
u8g2_t fb;
|
|
CanvasOrientation orientation;
|
|
uint8_t offset_x;
|
|
uint8_t offset_y;
|
|
uint8_t width;
|
|
uint8_t height;
|
|
};
|
|
|
|
/** Allocate memory and initialize canvas
|
|
*
|
|
* @return Canvas instance
|
|
*/
|
|
Canvas* canvas_init();
|
|
|
|
/** Free canvas memory
|
|
*
|
|
* @param canvas Canvas instance
|
|
*/
|
|
void canvas_free(Canvas* canvas);
|
|
|
|
/** Get canvas buffer.
|
|
*
|
|
* @param canvas Canvas instance
|
|
*
|
|
* @return pointer to buffer
|
|
*/
|
|
uint8_t* canvas_get_buffer(Canvas* canvas);
|
|
|
|
/** Get canvas buffer size.
|
|
*
|
|
* @param canvas Canvas instance
|
|
*
|
|
* @return size of canvas in bytes
|
|
*/
|
|
size_t canvas_get_buffer_size(const Canvas* canvas);
|
|
|
|
/** Set drawing region relative to real screen buffer
|
|
*
|
|
* @param canvas Canvas instance
|
|
* @param offset_x x coordinate offset
|
|
* @param offset_y y coordinate offset
|
|
* @param width width
|
|
* @param height height
|
|
*/
|
|
void canvas_frame_set(
|
|
Canvas* canvas,
|
|
uint8_t offset_x,
|
|
uint8_t offset_y,
|
|
uint8_t width,
|
|
uint8_t height);
|
|
|
|
/** Set canvas orientation
|
|
*
|
|
* @param canvas Canvas instance
|
|
* @param orientation CanvasOrientation
|
|
*/
|
|
void canvas_set_orientation(Canvas* canvas, CanvasOrientation orientation);
|
|
|
|
/** Get canvas orientation
|
|
*
|
|
* @param canvas Canvas instance
|
|
*
|
|
* @return CanvasOrientation
|
|
*/
|
|
CanvasOrientation canvas_get_orientation(const Canvas* canvas);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|