Implement shine animation

2 files changed, 13 insertions, 6 deletions

diff --git a/src/animate.c b/src/animate.c
index 874dece..ca5cbfe 100644
--- a/src/animate.c
+++ b/src/animate.c
@@ -32,7 +32,6 @@ typedef struct {
     Animation anim;
     gint64 start;
     gint64 duration;
-    double x;
 } AnimationShine;
 
 bool shine_paint(AnimationShine *anim, cairo_t *cr, const Layout *layout)
@@ -42,15 +41,23 @@ bool shine_paint(AnimationShine *anim, cairo_t *cr, const Layout *layout)
         anim->start = now;
 
     gint64 end = anim->start + anim->duration;
-    anim->x = 1.0;
+    double pos = 1.0;
 
     if (now <= end) {
         double t = (double)(now - anim->start) / (end - anim->start);
-        anim->x = cubic_bezier(t, 0.19, 1.0, 0.22, 1.0);
+        pos = cubic_bezier(t, 0.19, 1.0, 0.22, 1.0);
     }
 
-    // Draw at x on the surface...
-    return false;
+    int w = 10;
+    int x = layout->x + pos * layout->width - w;
+    int y = layout->y;
+
+    cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+    cairo_set_source_rgba(cr, 1, 1, 1, 0.1);
+    cairo_rectangle(cr, x, y, w, layout->height);
+    cairo_fill(cr);
+
+    return pos < 1.0;
 }
 
 Animation *animation_shine_create(gint64 duration)
diff --git a/src/connect.c b/src/connect.c
index 1a21be3..ae9f295 100644
--- a/src/connect.c
+++ b/src/connect.c
@@ -97,7 +97,7 @@ static void button_action(State *state, const char *event, int x, int y)
                 ButtonAction action = button_simple_get_action(layout->btn);
 
                 if (action != NULL) {
-                    Animation *shine = animation_shine_create(500 * G_TIME_SPAN_MILLISECOND);
+                    Animation *shine = animation_shine_create(200 * G_TIME_SPAN_MILLISECOND);
 
                     if (button_set_animation(layout->btn, shine))
                         state_request_animation(state);