Add layout animations and refactor

1 files changed, 12 insertions, 1 deletions

diff --git a/src/animate.h b/src/animate.h
index c243287..a4ded33 100644
--- a/src/animate.h
+++ b/src/animate.h
@@ -9,20 +9,31 @@ typedef struct Animation Animation;
 typedef struct State State;
 
 typedef bool (* DrawFunc)(Animation *anim, cairo_t *cr, const Layout *layout);
+typedef bool (* LayoutFunc)(Animation *anim, Layout *layout);
 
 struct Animation {
     enum {
         ANIM_SHINE,
+        ANIM_PULSE,
     } type;
-    DrawFunc paint;
+    DrawFunc paint_func;
+    LayoutFunc layout_func;
+    gint64 start;
+    gint64 duration;
 };
 
+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);
+
 void animation_destroy(Animation *anim);
 
 #endif