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#ifndef COMET_EFFECT_H
#define COMET_EFFECT_H
#include <cairo.h>
#include "util.h"
typedef struct effect effect_t;
typedef struct effect_info effect_info_t;
typedef struct layout layout_t;
// NOTE: Should only allocate the effect and set any extra values
//
typedef effect_t *(*effect_allocate_t)(const effect_info_t *info);
// NOTE: Must free any state associated with the effect
//
typedef void (*effect_finalize_t)(effect_t *effect);
typedef void (*effect_render_t)(effect_t *effect, layout_t *layout, cairo_t *cr);
// NOTE: effect_info's state will be free'd simply
//
struct effect_info {
char *label;
struct timespec duration;
effect_allocate_t allocate;
effect_finalize_t finalize;
effect_render_t pre;
effect_render_t post;
void *state;
};
struct effect {
const effect_info_t *info;
struct timespec start;
struct effect *next;
};
void effect_init(effect_t *effect, const effect_info_t *info);
void effect_info_free(effect_info_t *info);
void effect_free(effect_t *effect);
#endif
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