Make some scrolling code more readable.

This commit is contained in:
Gustavo Lima Chaves 2013-03-21 15:32:36 -03:00
parent 1343040dcf
commit d26a894a26
1 changed files with 301 additions and 302 deletions

View File

@ -2465,100 +2465,99 @@ _elm_scroll_mouse_down_event_cb(void *data,
if (_elm_scroll_smooth_debug) _elm_scroll_smooth_debug_init();
#endif
if (_elm_config->thumbscroll_enable)
if (!_elm_config->thumbscroll_enable) return;
sid->down.hold = EINA_FALSE;
if ((sid->down.bounce_x_animator) || (sid->down.bounce_y_animator) ||
(sid->down.momentum_animator) || (sid->scrollto.x.animator) ||
(sid->scrollto.y.animator))
{
sid->down.hold = EINA_FALSE;
if ((sid->down.bounce_x_animator) || (sid->down.bounce_y_animator) ||
(sid->down.momentum_animator) || (sid->scrollto.x.animator) ||
(sid->scrollto.y.animator))
{
ev->event_flags |= EVAS_EVENT_FLAG_ON_SCROLL |
EVAS_EVENT_FLAG_ON_HOLD;
sid->down.scroll = EINA_TRUE;
sid->down.hold = EINA_TRUE;
_elm_scroll_anim_stop(sid);
}
if (sid->scrollto.x.animator)
{
ecore_animator_del(sid->scrollto.x.animator);
sid->scrollto.x.animator = NULL;
}
if (sid->scrollto.y.animator)
{
ecore_animator_del(sid->scrollto.y.animator);
sid->scrollto.y.animator = NULL;
}
if (sid->down.bounce_x_animator)
{
ecore_animator_del(sid->down.bounce_x_animator);
sid->down.bounce_x_animator = NULL;
sid->bouncemex = EINA_FALSE;
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
if (sid->down.bounce_y_animator)
{
ecore_animator_del(sid->down.bounce_y_animator);
sid->down.bounce_y_animator = NULL;
sid->bouncemey = EINA_FALSE;
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
if (sid->down.hold_animator)
{
ecore_animator_del(sid->down.hold_animator);
sid->down.hold_animator = NULL;
_elm_scroll_drag_stop(sid);
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
if (sid->down.momentum_animator)
{
ecore_animator_del(sid->down.momentum_animator);
sid->down.momentum_animator = NULL;
sid->down.bounce_x_hold = EINA_FALSE;
sid->down.bounce_y_hold = EINA_FALSE;
sid->down.ax = 0;
sid->down.ay = 0;
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
if (ev->button == 1)
{
sid->down.hist.est_timestamp_diff =
ecore_loop_time_get() - ((double)ev->timestamp / 1000.0);
sid->down.hist.tadd = 0.0;
sid->down.hist.dxsum = 0.0;
sid->down.hist.dysum = 0.0;
sid->down.now = EINA_TRUE;
sid->down.dragged = EINA_FALSE;
sid->down.dir_x = EINA_FALSE;
sid->down.dir_y = EINA_FALSE;
sid->down.x = ev->canvas.x;
sid->down.y = ev->canvas.y;
eo_do(sid->obj, elm_scrollable_interface_content_pos_get(&x, &y));
sid->down.sx = x;
sid->down.sy = y;
sid->down.locked = EINA_FALSE;
memset(&(sid->down.history[0]), 0,
sizeof(sid->down.history[0]) * 60);
#ifdef EVTIME
sid->down.history[0].timestamp = ev->timestamp / 1000.0;
sid->down.history[0].localtimestamp = ecore_loop_time_get();
#else
sid->down.history[0].timestamp = ecore_loop_time_get();
#endif
sid->down.history[0].x = ev->canvas.x;
sid->down.history[0].y = ev->canvas.y;
}
sid->down.dragged_began = EINA_FALSE;
sid->down.hold_parent = EINA_FALSE;
sid->down.cancelled = EINA_FALSE;
if (sid->hold || sid->freeze)
sid->down.want_reset = EINA_TRUE;
else
sid->down.want_reset = EINA_FALSE;
ev->event_flags |= EVAS_EVENT_FLAG_ON_SCROLL |
EVAS_EVENT_FLAG_ON_HOLD;
sid->down.scroll = EINA_TRUE;
sid->down.hold = EINA_TRUE;
_elm_scroll_anim_stop(sid);
}
if (sid->scrollto.x.animator)
{
ecore_animator_del(sid->scrollto.x.animator);
sid->scrollto.x.animator = NULL;
}
if (sid->scrollto.y.animator)
{
ecore_animator_del(sid->scrollto.y.animator);
sid->scrollto.y.animator = NULL;
}
if (sid->down.bounce_x_animator)
{
ecore_animator_del(sid->down.bounce_x_animator);
sid->down.bounce_x_animator = NULL;
sid->bouncemex = EINA_FALSE;
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
if (sid->down.bounce_y_animator)
{
ecore_animator_del(sid->down.bounce_y_animator);
sid->down.bounce_y_animator = NULL;
sid->bouncemey = EINA_FALSE;
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
if (sid->down.hold_animator)
{
ecore_animator_del(sid->down.hold_animator);
sid->down.hold_animator = NULL;
_elm_scroll_drag_stop(sid);
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
if (sid->down.momentum_animator)
{
ecore_animator_del(sid->down.momentum_animator);
sid->down.momentum_animator = NULL;
sid->down.bounce_x_hold = EINA_FALSE;
sid->down.bounce_y_hold = EINA_FALSE;
sid->down.ax = 0;
sid->down.ay = 0;
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
if (ev->button == 1)
{
sid->down.hist.est_timestamp_diff =
ecore_loop_time_get() - ((double)ev->timestamp / 1000.0);
sid->down.hist.tadd = 0.0;
sid->down.hist.dxsum = 0.0;
sid->down.hist.dysum = 0.0;
sid->down.now = EINA_TRUE;
sid->down.dragged = EINA_FALSE;
sid->down.dir_x = EINA_FALSE;
sid->down.dir_y = EINA_FALSE;
sid->down.x = ev->canvas.x;
sid->down.y = ev->canvas.y;
eo_do(sid->obj, elm_scrollable_interface_content_pos_get(&x, &y));
sid->down.sx = x;
sid->down.sy = y;
sid->down.locked = EINA_FALSE;
memset(&(sid->down.history[0]), 0,
sizeof(sid->down.history[0]) * 60);
#ifdef EVTIME
sid->down.history[0].timestamp = ev->timestamp / 1000.0;
sid->down.history[0].localtimestamp = ecore_loop_time_get();
#else
sid->down.history[0].timestamp = ecore_loop_time_get();
#endif
sid->down.history[0].x = ev->canvas.x;
sid->down.history[0].y = ev->canvas.y;
}
sid->down.dragged_began = EINA_FALSE;
sid->down.hold_parent = EINA_FALSE;
sid->down.cancelled = EINA_FALSE;
if (sid->hold || sid->freeze)
sid->down.want_reset = EINA_TRUE;
else
sid->down.want_reset = EINA_FALSE;
}
static Eina_Bool
@ -2881,249 +2880,249 @@ _elm_scroll_mouse_move_event_cb(void *data,
evas_post_event_callback_push(e, _elm_scroll_post_event_move, sid);
// FIXME: respect elm_widget_scroll_hold_get of parent container
if (_elm_config->thumbscroll_enable)
if (!_elm_config->thumbscroll_enable)
return;
if (sid->down.now)
{
if (sid->down.now)
int dodir = 0;
if ((sid->scrollto.x.animator) && (!sid->hold) && (!sid->freeze))
{
int dodir = 0;
Evas_Coord px;
ecore_animator_del(sid->scrollto.x.animator);
sid->scrollto.x.animator = NULL;
eo_do(sid->pan_obj, elm_obj_pan_pos_get(&px, NULL));
sid->down.sx = px;
sid->down.x = sid->down.history[0].x;
}
if ((sid->scrollto.x.animator) && (!sid->hold) && (!sid->freeze))
{
Evas_Coord px;
ecore_animator_del(sid->scrollto.x.animator);
sid->scrollto.x.animator = NULL;
eo_do(sid->pan_obj, elm_obj_pan_pos_get(&px, NULL));
sid->down.sx = px;
sid->down.x = sid->down.history[0].x;
}
if ((sid->scrollto.y.animator) && (!sid->hold) && (!sid->freeze))
{
Evas_Coord py;
ecore_animator_del(sid->scrollto.y.animator);
sid->scrollto.y.animator = NULL;
eo_do(sid->pan_obj, elm_obj_pan_pos_get(NULL, &py));
sid->down.sy = py;
sid->down.y = sid->down.history[0].y;
}
if ((sid->scrollto.y.animator) && (!sid->hold) && (!sid->freeze))
{
Evas_Coord py;
ecore_animator_del(sid->scrollto.y.animator);
sid->scrollto.y.animator = NULL;
eo_do(sid->pan_obj, elm_obj_pan_pos_get(NULL, &py));
sid->down.sy = py;
sid->down.y = sid->down.history[0].y;
}
#ifdef SCROLLDBG
DBG("::: %i %i\n", ev->cur.canvas.x, ev->cur.canvas.y);
DBG("::: %i %i\n", ev->cur.canvas.x, ev->cur.canvas.y);
#endif
memmove(&(sid->down.history[1]), &(sid->down.history[0]),
sizeof(sid->down.history[0]) * (60 - 1));
memmove(&(sid->down.history[1]), &(sid->down.history[0]),
sizeof(sid->down.history[0]) * (60 - 1));
#ifdef EVTIME
sid->down.history[0].timestamp = ev->timestamp / 1000.0;
sid->down.history[0].localtimestamp = ecore_loop_time_get();
sid->down.history[0].timestamp = ev->timestamp / 1000.0;
sid->down.history[0].localtimestamp = ecore_loop_time_get();
#else
sid->down.history[0].timestamp = ecore_loop_time_get();
sid->down.history[0].timestamp = ecore_loop_time_get();
#endif
sid->down.history[0].x = ev->cur.canvas.x;
sid->down.history[0].y = ev->cur.canvas.y;
sid->down.history[0].x = ev->cur.canvas.x;
sid->down.history[0].y = ev->cur.canvas.y;
if (!sid->down.dragged_began)
if (!sid->down.dragged_began)
{
x = ev->cur.canvas.x - sid->down.x;
y = ev->cur.canvas.y - sid->down.y;
sid->down.hdir = -1;
sid->down.vdir = -1;
if (x > 0) sid->down.hdir = LEFT;
else if (x < 0)
sid->down.hdir = RIGHT;
if (y > 0) sid->down.vdir = UP;
else if (y < 0)
sid->down.vdir = DOWN;
if (x < 0) x = -x;
if (y < 0) y = -y;
if ((sid->one_direction_at_a_time) &&
(!((sid->down.dir_x) || (sid->down.dir_y))))
{
x = ev->cur.canvas.x - sid->down.x;
y = ev->cur.canvas.y - sid->down.y;
sid->down.hdir = -1;
sid->down.vdir = -1;
if (x > 0) sid->down.hdir = LEFT;
else if (x < 0)
sid->down.hdir = RIGHT;
if (y > 0) sid->down.vdir = UP;
else if (y < 0)
sid->down.vdir = DOWN;
if (x < 0) x = -x;
if (y < 0) y = -y;
if ((sid->one_direction_at_a_time) &&
(!((sid->down.dir_x) || (sid->down.dir_y))))
if (x > _elm_config->thumbscroll_threshold)
{
if (x > _elm_config->thumbscroll_threshold)
{
if (x > (y * 2))
{
sid->down.dir_x = EINA_TRUE;
sid->down.dir_y = EINA_FALSE;
dodir++;
}
}
if (y > _elm_config->thumbscroll_threshold)
{
if (y > (x * 2))
{
sid->down.dir_x = EINA_FALSE;
sid->down.dir_y = EINA_TRUE;
dodir++;
}
}
if (!dodir)
if (x > (y * 2))
{
sid->down.dir_x = EINA_TRUE;
sid->down.dir_y = EINA_TRUE;
sid->down.dir_y = EINA_FALSE;
dodir++;
}
}
else
if (y > _elm_config->thumbscroll_threshold)
{
if (y > (x * 2))
{
sid->down.dir_x = EINA_FALSE;
sid->down.dir_y = EINA_TRUE;
dodir++;
}
}
if (!dodir)
{
sid->down.dir_x = EINA_TRUE;
sid->down.dir_y = EINA_TRUE;
}
}
if ((!sid->hold) && (!sid->freeze))
else
{
if ((sid->down.dragged) ||
(((x * x) + (y * y)) >
(_elm_config->thumbscroll_threshold *
sid->down.dir_x = EINA_TRUE;
sid->down.dir_y = EINA_TRUE;
}
}
if ((!sid->hold) && (!sid->freeze))
{
if ((sid->down.dragged) ||
(((x * x) + (y * y)) >
(_elm_config->thumbscroll_threshold *
_elm_config->thumbscroll_threshold)))
{
sid->down.dragged_began = EINA_TRUE;
if (!sid->down.dragged)
{
sid->down.dragged_began = EINA_TRUE;
if (!sid->down.dragged)
{
sid->down.want_dragged = EINA_TRUE;
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
}
if (sid->down.dragged)
{
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
}
if (sid->down.dir_x)
x = sid->down.sx - (ev->cur.canvas.x - sid->down.x);
else
x = sid->down.sx;
if (sid->down.dir_y)
y = sid->down.sy - (ev->cur.canvas.y - sid->down.y);
else
y = sid->down.sy;
if (sid->down.want_reset)
{
sid->down.x = ev->cur.canvas.x;
sid->down.y = ev->cur.canvas.y;
sid->down.want_reset = EINA_FALSE;
}
if ((sid->down.dir_x) || (sid->down.dir_y))
{
if (!sid->down.locked)
{
sid->down.locked_x = x;
sid->down.locked_y = y;
sid->down.locked = EINA_TRUE;
}
if (!((sid->down.dir_x) && (sid->down.dir_y)))
{
if (sid->down.dir_x) y = sid->down.locked_y;
else x = sid->down.locked_x;
}
}
{
Evas_Coord minx, miny, mx, my;
eo_do(sid->pan_obj, elm_obj_pan_pos_min_get(&minx, &miny));
eo_do(sid->pan_obj, elm_obj_pan_pos_max_get(&mx, &my));
if (y < miny)
y += (miny - y) *
_elm_config->thumbscroll_border_friction;
else if (my <= 0)
y += (sid->down.sy - y) *
_elm_config->thumbscroll_border_friction;
else if ((my + miny) < y)
y += (my + miny - y) *
_elm_config->thumbscroll_border_friction;
if (x < minx)
x += (minx - x) *
_elm_config->thumbscroll_border_friction;
else if (mx <= 0)
x += (sid->down.sx - x) *
_elm_config->thumbscroll_border_friction;
else if ((mx + minx) < x)
x += (mx + minx - x) *
_elm_config->thumbscroll_border_friction;
}
sid->down.hold_x = x;
sid->down.hold_y = y;
if (!sid->down.hold_animator)
sid->down.hold_animator =
ecore_animator_add(_elm_scroll_hold_animator, sid);
sid->down.want_dragged = EINA_TRUE;
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
}
else
if (sid->down.dragged)
{
if (sid->down.dragged_began)
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
}
if (sid->down.dir_x)
x = sid->down.sx - (ev->cur.canvas.x - sid->down.x);
else
x = sid->down.sx;
if (sid->down.dir_y)
y = sid->down.sy - (ev->cur.canvas.y - sid->down.y);
else
y = sid->down.sy;
if (sid->down.want_reset)
{
sid->down.x = ev->cur.canvas.x;
sid->down.y = ev->cur.canvas.y;
sid->down.want_reset = EINA_FALSE;
}
if ((sid->down.dir_x) || (sid->down.dir_y))
{
if (!sid->down.locked)
{
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
if (!sid->down.hold)
{
sid->down.hold = EINA_TRUE;
evas_event_feed_hold
(e, 1, ev->timestamp, ev->data);
}
sid->down.locked_x = x;
sid->down.locked_y = y;
sid->down.locked = EINA_TRUE;
}
if (!((sid->down.dir_x) && (sid->down.dir_y)))
{
if (sid->down.dir_x) y = sid->down.locked_y;
else x = sid->down.locked_x;
}
}
{
Evas_Coord minx, miny, mx, my;
eo_do(sid->pan_obj, elm_obj_pan_pos_min_get(&minx, &miny));
eo_do(sid->pan_obj, elm_obj_pan_pos_max_get(&mx, &my));
if (y < miny)
y += (miny - y) *
_elm_config->thumbscroll_border_friction;
else if (my <= 0)
y += (sid->down.sy - y) *
_elm_config->thumbscroll_border_friction;
else if ((my + miny) < y)
y += (my + miny - y) *
_elm_config->thumbscroll_border_friction;
if (x < minx)
x += (minx - x) *
_elm_config->thumbscroll_border_friction;
else if (mx <= 0)
x += (sid->down.sx - x) *
_elm_config->thumbscroll_border_friction;
else if ((mx + minx) < x)
x += (mx + minx - x) *
_elm_config->thumbscroll_border_friction;
}
sid->down.hold_x = x;
sid->down.hold_y = y;
if (!sid->down.hold_animator)
sid->down.hold_animator =
ecore_animator_add(_elm_scroll_hold_animator, sid);
}
else
{
if (sid->down.dragged_began)
{
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
if (!sid->down.hold)
{
sid->down.hold = EINA_TRUE;
evas_event_feed_hold
(e, 1, ev->timestamp, ev->data);
}
}
}
else if (!sid->freeze)
{
double vx = 0.0, vy = 0.0;
}
else if (!sid->freeze)
{
double vx = 0.0, vy = 0.0;
x = ev->cur.canvas.x - sid->x;
y = ev->cur.canvas.y - sid->y;
if (x < _elm_config->thumbscroll_hold_threshold)
{
if (_elm_config->thumbscroll_hold_threshold > 0.0)
vx = -(double)(_elm_config->thumbscroll_hold_threshold - x)
/ _elm_config->thumbscroll_hold_threshold;
else
vx = -1.0;
}
else if (x > (sid->w - _elm_config->thumbscroll_hold_threshold))
{
if (_elm_config->thumbscroll_hold_threshold > 0.0)
vx = (double)(_elm_config->thumbscroll_hold_threshold -
(sid->w - x)) /
_elm_config->thumbscroll_hold_threshold;
else
vx = 1.0;
}
if (y < _elm_config->thumbscroll_hold_threshold)
{
if (_elm_config->thumbscroll_hold_threshold > 0.0)
vy = -(double)(_elm_config->thumbscroll_hold_threshold - y)
/ _elm_config->thumbscroll_hold_threshold;
else
vy = -1.0;
}
else if (y > (sid->h - _elm_config->thumbscroll_hold_threshold))
{
if (_elm_config->thumbscroll_hold_threshold > 0.0)
vy = (double)(_elm_config->thumbscroll_hold_threshold -
(sid->h - y)) /
_elm_config->thumbscroll_hold_threshold;
else
vy = 1.0;
}
if ((vx != 0.0) || (vy != 0.0))
{
sid->down.onhold_vx = vx;
sid->down.onhold_vy = vy;
if (!sid->down.onhold_animator)
{
sid->down.onhold_vxe = 0.0;
sid->down.onhold_vye = 0.0;
sid->down.onhold_tlast = 0.0;
sid->down.onhold_animator = ecore_animator_add
(_elm_scroll_on_hold_animator, sid);
}
}
x = ev->cur.canvas.x - sid->x;
y = ev->cur.canvas.y - sid->y;
if (x < _elm_config->thumbscroll_hold_threshold)
{
if (_elm_config->thumbscroll_hold_threshold > 0.0)
vx = -(double)(_elm_config->thumbscroll_hold_threshold - x)
/ _elm_config->thumbscroll_hold_threshold;
else
vx = -1.0;
}
else if (x > (sid->w - _elm_config->thumbscroll_hold_threshold))
{
if (_elm_config->thumbscroll_hold_threshold > 0.0)
vx = (double)(_elm_config->thumbscroll_hold_threshold -
(sid->w - x)) /
_elm_config->thumbscroll_hold_threshold;
else
vx = 1.0;
}
if (y < _elm_config->thumbscroll_hold_threshold)
{
if (_elm_config->thumbscroll_hold_threshold > 0.0)
vy = -(double)(_elm_config->thumbscroll_hold_threshold - y)
/ _elm_config->thumbscroll_hold_threshold;
else
vy = -1.0;
}
else if (y > (sid->h - _elm_config->thumbscroll_hold_threshold))
{
if (_elm_config->thumbscroll_hold_threshold > 0.0)
vy = (double)(_elm_config->thumbscroll_hold_threshold -
(sid->h - y)) /
_elm_config->thumbscroll_hold_threshold;
else
vy = 1.0;
}
if ((vx != 0.0) || (vy != 0.0))
{
sid->down.onhold_vx = vx;
sid->down.onhold_vy = vy;
if (!sid->down.onhold_animator)
{
if (sid->down.onhold_animator)
{
ecore_animator_del(sid->down.onhold_animator);
sid->down.onhold_animator = NULL;
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
sid->down.onhold_vxe = 0.0;
sid->down.onhold_vye = 0.0;
sid->down.onhold_tlast = 0.0;
sid->down.onhold_animator = ecore_animator_add
(_elm_scroll_on_hold_animator, sid);
}
}
else
{
if (sid->down.onhold_animator)
{
ecore_animator_del(sid->down.onhold_animator);
sid->down.onhold_animator = NULL;
if (sid->content_info.resized)
_elm_scroll_wanted_region_set(sid->obj);
}
}
}