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shell: Animate workspace changes

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Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Jonas Ådahl 13 years ago committed by Kristian Høgsberg
parent e3cddce5a6
commit 62fcd0417e
1 changed files with 241 additions and 4 deletions
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  1. 245
      src/shell.c

245
src/shell.c
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@ -39,6 +39,7 @@
#include "log.h"
#define DEFAULT_NUM_WORKSPACES 1
#define DEFAULT_WORKSPACE_CHANGE_ANIMATION_LENGTH 200
enum animation_type {
ANIMATION_NONE,
@ -88,6 +89,13 @@ struct desktop_shell {
struct wl_array array;
unsigned int current;
unsigned int num;
struct weston_animation animation;
int anim_dir;
uint32_t anim_timestamp;
double anim_current;
struct workspace *anim_from;
struct workspace *anim_to;
} workspaces;
struct {
@ -166,6 +174,8 @@ struct shell_surface {
struct ping_timer *ping_timer;
struct weston_transform workspace_transform;
struct weston_output *fullscreen_output;
struct weston_output *output;
struct wl_list link;
@ -337,6 +347,12 @@ workspace_create(void)
return ws;
}
static int
workspace_is_empty(struct workspace *ws)
{
return wl_list_empty(&ws->layer.surface_list);
}
static struct workspace *
get_workspace(struct desktop_shell *shell, unsigned int index)
{
@ -362,6 +378,209 @@ activate_workspace(struct desktop_shell *shell, unsigned int index)
shell->workspaces.current = index;
}
static unsigned int
get_output_height(struct weston_output *output)
{
return abs(output->region.extents.y1 - output->region.extents.y2);
}
static void
surface_translate(struct weston_surface *surface, double d)
{
struct shell_surface *shsurf = get_shell_surface(surface);
struct weston_transform *transform;
transform = &shsurf->workspace_transform;
if (wl_list_empty(&transform->link))
wl_list_insert(surface->geometry.transformation_list.prev,
&shsurf->workspace_transform.link);
weston_matrix_init(&shsurf->workspace_transform.matrix);
weston_matrix_translate(&shsurf->workspace_transform.matrix,
0.0, d, 0.0);
surface->geometry.dirty = 1;
}
static void
workspace_translate_out(struct workspace *ws, double fraction)
{
struct weston_surface *surface;
unsigned int height;
double d;
wl_list_for_each(surface, &ws->layer.surface_list, layer_link) {
height = get_output_height(surface->output);
d = height * fraction;
surface_translate(surface, d);
}
}
static void
workspace_translate_in(struct workspace *ws, double fraction)
{
struct weston_surface *surface;
unsigned int height;
double d;
wl_list_for_each(surface, &ws->layer.surface_list, layer_link) {
height = get_output_height(surface->output);
if (fraction > 0)
d = -(height - height * fraction);
else
d = height + height * fraction;
surface_translate(surface, d);
}
}
static void
workspace_damage_all_surfaces(struct workspace *ws)
{
struct weston_surface *surface;
wl_list_for_each(surface, &ws->layer.surface_list, layer_link)
weston_surface_damage(surface);
}
static void
reverse_workspace_change_animation(struct desktop_shell *shell,
unsigned int index,
struct workspace *from,
struct workspace *to)
{
shell->workspaces.current = index;
shell->workspaces.anim_to = to;
shell->workspaces.anim_from = from;
shell->workspaces.anim_dir = -1 * shell->workspaces.anim_dir;
shell->workspaces.anim_timestamp = 0;
workspace_damage_all_surfaces(from);
workspace_damage_all_surfaces(to);
}
static void
workspace_deactivate_transforms(struct workspace *ws)
{
struct weston_surface *surface;
struct shell_surface *shsurf;
wl_list_for_each(surface, &ws->layer.surface_list, layer_link) {
shsurf = get_shell_surface(surface);
wl_list_remove(&shsurf->workspace_transform.link);
wl_list_init(&shsurf->workspace_transform.link);
shsurf->surface->geometry.dirty = 1;
}
}
static void
finish_workspace_change_animation(struct desktop_shell *shell,
struct workspace *from,
struct workspace *to)
{
workspace_damage_all_surfaces(from);
workspace_damage_all_surfaces(to);
wl_list_remove(&shell->workspaces.animation.link);
workspace_deactivate_transforms(from);
workspace_deactivate_transforms(to);
shell->workspaces.anim_to = NULL;
wl_list_remove(&shell->workspaces.anim_from->layer.link);
}
static void
animate_workspace_change_frame(struct weston_animation *animation,
struct weston_output *output, uint32_t msecs)
{
struct desktop_shell *shell =
container_of(animation, struct desktop_shell,
workspaces.animation);
struct workspace *from = shell->workspaces.anim_from;
struct workspace *to = shell->workspaces.anim_to;
uint32_t t;
double x, y;
if (workspace_is_empty(from) && workspace_is_empty(to)) {
finish_workspace_change_animation(shell, from, to);
return;
}
if (shell->workspaces.anim_timestamp == 0) {
if (shell->workspaces.anim_current == 0.0)
shell->workspaces.anim_timestamp = msecs;
else
shell->workspaces.anim_timestamp =
msecs -
/* Invers of movement function 'y' below. */
(asin(1.0 - shell->workspaces.anim_current) *
DEFAULT_WORKSPACE_CHANGE_ANIMATION_LENGTH *
M_2_PI);
}
t = msecs - shell->workspaces.anim_timestamp;
/*
* x = [0, π/2]
* y(x) = sin(x)
*/
x = t * (1.0/DEFAULT_WORKSPACE_CHANGE_ANIMATION_LENGTH) * M_PI_2;
y = sin(x);
if (t < DEFAULT_WORKSPACE_CHANGE_ANIMATION_LENGTH) {
workspace_damage_all_surfaces(from);
workspace_damage_all_surfaces(to);
workspace_translate_out(from, shell->workspaces.anim_dir * y);
workspace_translate_in(to, shell->workspaces.anim_dir * y);
shell->workspaces.anim_current = y;
workspace_damage_all_surfaces(from);
workspace_damage_all_surfaces(to);
}
else {
finish_workspace_change_animation(shell, from, to);
}
}
static void
animate_workspace_change(struct desktop_shell *shell,
unsigned int index,
struct workspace *from,
struct workspace *to)
{
struct weston_output *output;
int dir;
if (index > shell->workspaces.current)
dir = -1;
else
dir = 1;
shell->workspaces.current = index;
shell->workspaces.anim_dir = dir;
shell->workspaces.anim_from = from;
shell->workspaces.anim_to = to;
shell->workspaces.anim_current = 0.0;
shell->workspaces.anim_timestamp = 0;
output = container_of(shell->compositor->output_list.next,
struct weston_output, link);
wl_list_insert(&output->animation_list,
&shell->workspaces.animation.link);
wl_list_insert(&from->layer.link, &to->layer.link);
workspace_translate_in(to, 0);
workspace_damage_all_surfaces(from);
workspace_damage_all_surfaces(to);
}
static void
change_workspace(struct desktop_shell *shell, unsigned int index)
{
@ -384,11 +603,24 @@ change_workspace(struct desktop_shell *shell, unsigned int index)
from = get_current_workspace(shell);
to = get_workspace(shell, index);
shell->workspaces.current = index;
wl_list_insert(&from->layer.link, &to->layer.link);
wl_list_remove(&from->layer.link);
if (shell->workspaces.anim_from == to &&
shell->workspaces.anim_to == from) {
reverse_workspace_change_animation(shell, index, from, to);
return;
}
weston_compositor_damage_all(shell->compositor);
if (shell->workspaces.anim_to != NULL)
finish_workspace_change_animation(shell,
shell->workspaces.anim_from,
shell->workspaces.anim_to);
if (workspace_is_empty(to) && workspace_is_empty(from)) {
shell->workspaces.current = index;
wl_list_insert(&from->layer.link, &to->layer.link);
wl_list_remove(&from->layer.link);
}
else
animate_workspace_change(shell, index, from, to);
}
static void
@ -1440,6 +1672,8 @@ create_shell_surface(void *shell, struct weston_surface *surface,
wl_list_init(&shsurf->rotation.transform.link);
weston_matrix_init(&shsurf->rotation.rotation);
wl_list_init(&shsurf->workspace_transform.link);
shsurf->type = SHELL_SURFACE_NONE;
shsurf->next_type = SHELL_SURFACE_NONE;
@ -2927,6 +3161,9 @@ shell_init(struct weston_compositor *ec)
}
activate_workspace(shell, 0);
wl_list_init(&shell->workspaces.animation.link);
shell->workspaces.animation.frame = animate_workspace_change_frame;
if (wl_display_add_global(ec->wl_display, &wl_shell_interface,
shell, bind_shell) == NULL)
return -1;

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