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animation: add fading-in animation

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To ful-fill user experience, add the fading-in animation
when mapping a window.
v2: update that westom_surface_damage to repaint
    remove that transform part in fade struct

Signed-off-by: Juan Zhao <juan.j.zhao@intel.com>
This commit is contained in:
Juan Zhao 2012-04-25 19:09:51 +08:00 committed by Kristian Høgsberg
parent 1f2ee8019f
commit 2abd07b200
1 changed files with 85 additions and 0 deletions
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85
src/util.c
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@ -96,6 +96,15 @@ struct weston_zoom {
void *data;
};
struct weston_fade {
struct weston_surface *surface;
struct weston_animation animation;
struct weston_spring spring;
struct wl_listener listener;
void (*done)(struct weston_fade *fade, void *data);
void *data;
};
static void
weston_zoom_destroy(struct weston_zoom *zoom)
{
@ -325,3 +334,79 @@ weston_environment_get_fd(const char *env)
return fd;
}
/*fade in and fade out animation*/
static void
weston_fade_destroy(struct weston_fade *fade)
{
wl_list_remove(&fade->animation.link);
wl_list_remove(&fade->listener.link);
fade->surface->geometry.dirty = 1;
if (fade->done)
fade->done(fade, fade->data);
free(fade);
}
static void
handle_fade_surface_destroy(struct wl_listener *listener, void *data)
{
struct weston_fade *fade =
container_of(listener, struct weston_fade, listener);
weston_fade_destroy(fade);
}
static void
weston_fade_frame(struct weston_animation *animation,
struct weston_output *output, uint32_t msecs)
{
struct weston_fade *fade =
container_of(animation, struct weston_fade, animation);
struct weston_surface *es = fade->surface;
float fade_factor;
weston_spring_update(&fade->spring, msecs);
if (weston_spring_done(&fade->spring)) {
weston_fade_destroy(fade);
return;
}
if (fade->spring.current > 1)
fade_factor = 1;
else if (fade->spring.current < 0 )
fade_factor = 0;
else
fade_factor = fade->spring.current;
es->alpha = fade_factor * 255;
fade->surface->geometry.dirty = 1;
weston_compositor_schedule_repaint(es->compositor);
}
WL_EXPORT struct weston_fade *
weston_fade_run(struct weston_surface *surface,
weston_fade_done_func_t done, void *data)
{
struct weston_fade *fade;
fade = malloc(sizeof *fade);
if (!fade)
return NULL;
fade->surface = surface;
fade->done = done;
fade->data = data;
weston_spring_init(&fade->spring, 200.0, 0, 1.0);
fade->spring.friction = 700;
fade->spring.timestamp = weston_compositor_get_time();
fade->animation.frame = weston_fade_frame;
weston_fade_frame(&fade->animation, NULL, fade->spring.timestamp);
fade->listener.notify = handle_fade_surface_destroy;
wl_signal_add(&surface->surface.resource.destroy_signal,
&fade->listener);
wl_list_insert(&surface->compositor->animation_list,
&fade->animation.link);
return fade;
}