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#ifndef UPEM_MORPHING_CANVAS
#define UPEM_MORPHING_CANVAS
/**
* File: canvas.h
* "Everyday is a good day when you paint" – Bob Ross
*/
#include <MLV/MLV_image.h>
#include "common/geom.h"
#include "painter/color.h"
/**
* Type: Canvas
* Represents a fixed size RGBa pixel matrix.
*/
typedef struct {
MLV_Image *mlv;
} Canvas;
/**
* Function: canvas_create
* Initialises a canvas of the given size
*
* Parameters:
* width - the width in pixels
* height - the height in pixels
*
* Returns:
* The initialised canvas
*/
Canvas *canvas_create(IntVector width, IntVector height);
/**
* Function: canvas_create_from_image
* Initialises a canvas with an image loaded from the given path.
*
* Parameters:
* *fpath - path to the base image file
*
* Returns:
* The initialised canvas
*/
Canvas *canvas_create_from_image(const char *fpath);
/**
* Function: canvas_destroy
* Frees all memory allocated to a canvas.
*
* Parameters:
* *c - the canvas to destroy
*/
void canvas_destroy(Canvas *c);
/**
* Function: canvas_set_pixel
* Sets the pixel colour at the given coordinates.
*
* Parameters:
* *c - the canvas to alter
* pos - the coordinate of the pixel to set
* color - the new colour to set
*/
void canvas_set_pixel(Canvas *c, CartesianVector pos, Color color);
/**
* Function: canvas_get_pixel
* Returns the colour of the pixel at the given position.
*
* Parameters:
* *c - the base canvas
* pos - the coordinate of the pixel to get
*
* Returns:
* The colour of the requested pixel
*/
Color canvas_get_pixel(Canvas *c, CartesianVector pos);
/**
* Function: canvas_get_dim
* Returns the size (in pixels) of the given canvas.
*
* Parameters:
* *c - the canvas
*
* Returns:
* The size of the canvas
*/
CartesianVector canvas_get_dim(Canvas *c);
#endif
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