1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
#ifndef COMET_ANIMATE_H
#define COMET_ANIMATE_H
#include <glib.h>
#include "draw.h"
#define MILLIS(n) ((n) * G_TIME_SPAN_MILLISECOND)
typedef struct Animation Animation;
typedef struct State State;
typedef bool (* LayoutFunc)(Animation *anim, Layout *layout);
typedef bool (* DrawFunc)(Animation *anim, Layout *layout, cairo_t *cr);
struct Animation {
enum {
ANIM_SHINE,
ANIM_PULSE,
ANIM_GROUP_SHRINK,
//ANIM_GROUP_GROW,
} type;
gint64 start;
gint64 duration;
LayoutFunc layout_func;
// NOTE: These should not change the layout width
DrawFunc before_func;
DrawFunc after_func;
};
double clamp(double x, double min, double max);
double smoothstep(double x, double edge0, double edge1);
double quadratic_bezier(double x, double a, double b, double c);
double cubic_bezier(double x, double a, double b, double c, double d);
Animation *animation_shine_create(gint64 duration);
Animation *animation_pulse_create(gint64 duration);
Animation *animation_group_shrink_create(gint64 duration);
void animation_destroy(Animation *anim);
#endif
// vim: ts=4 sw=4 et
|
