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desktop-shell: Animate surface opacity in zoom animation as well

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This commit is contained in:
Kristian Høgsberg 2011-12-15 11:24:25 -05:00
parent 541e5557ac
commit ef458246b0
1 changed files with 10 additions and 2 deletions
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12
compositor/util.c
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@ -152,6 +152,7 @@ struct wlsc_zoom {
struct wlsc_spring spring;
struct wlsc_transform transform;
struct wl_listener listener;
GLfloat start, stop;
void (*done)(struct wlsc_zoom *zoom, void *data);
void *data;
};
@ -191,7 +192,8 @@ wlsc_zoom_frame(struct wlsc_animation *animation,
if (wlsc_spring_done(&zoom->spring))
wlsc_zoom_destroy(zoom);
scale = zoom->spring.current;
scale = zoom->start +
(zoom->stop - zoom->start) * zoom->spring.current;
wlsc_matrix_init(&zoom->transform.matrix);
wlsc_matrix_translate(&zoom->transform.matrix,
-(es->x + es->width / 2.0),
@ -201,6 +203,9 @@ wlsc_zoom_frame(struct wlsc_animation *animation,
es->x + es->width / 2.0,
es->y + es->height / 2.0, 0);
es->alpha = zoom->spring.current * 255;
if (es->alpha > 255)
es->alpha = 255;
scale = 1.0 / zoom->spring.current;
wlsc_matrix_init(&zoom->transform.inverse);
wlsc_matrix_scale(&zoom->transform.inverse, scale, scale, scale);
@ -221,8 +226,11 @@ wlsc_zoom_run(struct wlsc_surface *surface, GLfloat start, GLfloat stop,
zoom->surface = surface;
zoom->done = done;
zoom->data = data;
zoom->start = start;
zoom->stop = stop;
surface->transform = &zoom->transform;
wlsc_spring_init(&zoom->spring, 200.0, start, stop);
wlsc_spring_init(&zoom->spring, 200.0, 0.0, 1.0);
zoom->spring.friction = 700;
zoom->spring.timestamp = wlsc_compositor_get_time();
zoom->animation.frame = wlsc_zoom_frame;
wlsc_zoom_frame(&zoom->animation, NULL, zoom->spring.timestamp);