Evas_Coord b2x, b2y;
struct {
Evas_Coord x, y;
- double timestamp;
- } history[20];
+ double timestamp, localtimestamp;
+ } history[60];
+ struct {
+ double tadd, dxsum, dysum;
+ double est_timestamp_diff;
+ } hist;
double anim_start;
double anim_start2;
double anim_start3;
y = py;
}
elm_smart_scroller_child_pos_set(sd->smart_obj, x, y);
+ _update_wanted_coordinates(sd, x, y);
sd->pan_func.max_get(sd->pan_obj, &maxx, &maxy);
sd->pan_func.min_get(sd->pan_obj, &minx, &miny);
if (!sd->bounce_horiz)
(no_bounce_x_end && no_bounce_y_end))
{
_smart_anim_stop(sd->smart_obj);
- _update_wanted_coordinates(sd, px, py);
sd->down.momentum_animator = NULL;
sd->down.bounce_x_hold = 0;
sd->pan_func.get(sd->pan_obj, x, y);
}
-/* "internal_call" actually toggles whether we should save the coords and do
- * extra "speedup" checks, or not. */
-static void
-_elm_smart_scroller_child_region_show_internal(Evas_Object *obj, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h, Eina_Bool internal_call)
+/* returns TRUE when we need to move the scroller, FALSE otherwise.
+ * Updates w and h either way, so save them if you need them. */
+static Eina_Bool
+_elm_smart_scroller_child_region_show_internal(Evas_Object *obj, Evas_Coord *_x, Evas_Coord *_y, Evas_Coord w, Evas_Coord h)
{
- Evas_Coord mx = 0, my = 0, cw = 0, ch = 0, px = 0, py = 0, nx, ny, minx = 0, miny = 0;
+ Evas_Coord mx = 0, my = 0, cw = 0, ch = 0, px = 0, py = 0, nx, ny, minx = 0, miny = 0, pw = 0, ph = 0, x = *_x, y = *_y;
- API_ENTRY return;
+ API_ENTRY return EINA_FALSE;
sd->pan_func.max_get(sd->pan_obj, &mx, &my);
sd->pan_func.min_get(sd->pan_obj, &minx, &miny);
sd->pan_func.child_size_get(sd->pan_obj, &cw, &ch);
sd->pan_func.get(sd->pan_obj, &px, &py);
+ evas_object_geometry_get(sd->pan_obj, NULL, NULL, &pw, &ph);
nx = px;
if ((x < px) && ((x + w) < (px + (cw - mx)))) nx = x;
ny = py;
if ((y < py) && ((y + h) < (py + (ch - my)))) ny = y;
else if ((y > py) && ((y + h) > (py + (ch - my)))) ny = y + h - (ch - my);
- if (!internal_call)
- {
- sd->wx = x;
- sd->wy = y;
- sd->ww = w;
- sd->wh = h;
- if ((nx == px) && (ny == py)) return;
- }
if ((sd->down.bounce_x_animator) || (sd->down.bounce_y_animator) ||
(sd->scrollto.x.animator) || (sd->scrollto.y.animator))
sd->down.pdx = 0;
sd->down.pdy = 0;
}
+
x = nx;
- if ((x + w) > cw) x = cw - w;
+ if ((x + pw) > cw) x = cw - pw;
if (x < minx) x = minx;
y = ny;
- if ((y + h) > ch) y = ch - h;
+ if ((y + ph) > ch) y = ch - ph;
if (y < miny) y = miny;
- elm_smart_scroller_child_pos_set(obj, x, y);
+
+ if ((x == px) && (y == py)) return EINA_FALSE;
+ *_x = x;
+ *_y = y;
+ return EINA_TRUE;
}
/* Set should be used for calculated positions, for example, when we move
void
elm_smart_scroller_child_region_set(Evas_Object *obj, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h)
{
- _elm_smart_scroller_child_region_show_internal(obj, x, y, w, h, EINA_TRUE);
+ if (_elm_smart_scroller_child_region_show_internal(obj, &x, &y, w, h))
+ elm_smart_scroller_child_pos_set(obj, x, y);
}
/* Set should be used for setting the wanted position, for example a user scroll
void
elm_smart_scroller_child_region_show(Evas_Object *obj, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h)
{
- _elm_smart_scroller_child_region_show_internal(obj, x, y, w, h, EINA_FALSE);
+ API_ENTRY return;
+ sd->wx = x;
+ sd->wy = y;
+ sd->ww = w;
+ sd->wh = h;
+ if (_elm_smart_scroller_child_region_show_internal(obj, &x, &y, w, h))
+ elm_smart_scroller_child_pos_set(obj, x, y);
}
void
void
elm_smart_scroller_region_bring_in(Evas_Object *obj, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h)
{
- Evas_Coord mx = 0, my = 0, cw = 0, ch = 0, px = 0, py = 0, nx, ny, minx = 0, miny = 0;
-
API_ENTRY return;
- sd->pan_func.max_get(sd->pan_obj, &mx, &my);
- sd->pan_func.min_get(sd->pan_obj, &minx, &miny);
- sd->pan_func.child_size_get(sd->pan_obj, &cw, &ch);
- sd->pan_func.get(sd->pan_obj, &px, &py);
-
- nx = px;
- if ((x < px) && ((x + w) < (px + (cw - mx)))) nx = x;
- else if ((x > px) && ((x + w) > (px + (cw - mx)))) nx = x + w - (cw - mx);
- ny = py;
- if ((y < py) && ((y + h) < (py + (ch - my)))) ny = y;
- else if ((y > py) && ((y + h) > (py + (ch - my)))) ny = y + h - (ch - my);
- sd->wx = x;
- sd->wy = y;
- sd->ww = w;
- sd->wh = h;
- if ((nx == px) && (ny == py)) return;
- if ((sd->down.bounce_x_animator) || (sd->down.bounce_y_animator) ||
- (sd->scrollto.x.animator) || (sd->scrollto.y.animator))
- {
- _smart_anim_stop(sd->smart_obj);
- }
- if (sd->scrollto.x.animator)
- {
- ecore_animator_del(sd->scrollto.x.animator);
- sd->scrollto.x.animator = NULL;
- }
- if (sd->scrollto.y.animator)
- {
- ecore_animator_del(sd->scrollto.y.animator);
- sd->scrollto.y.animator = NULL;
- }
- if (sd->down.bounce_x_animator)
- {
- ecore_animator_del(sd->down.bounce_x_animator);
- sd->down.bounce_x_animator = NULL;
- sd->bouncemex = 0;
- }
- if (sd->down.bounce_y_animator)
- {
- ecore_animator_del(sd->down.bounce_y_animator);
- sd->down.bounce_y_animator = NULL;
- sd->bouncemey = 0;
- }
- if (sd->down.hold_animator)
+ if (_elm_smart_scroller_child_region_show_internal(obj, &x, &y, w, h))
{
- ecore_animator_del(sd->down.hold_animator);
- sd->down.hold_animator = NULL;
- _smart_drag_stop(sd->smart_obj);
+ _smart_scrollto_x(sd, _elm_config->bring_in_scroll_friction, x);
+ _smart_scrollto_y(sd, _elm_config->bring_in_scroll_friction, y);
}
- if (sd->down.momentum_animator)
- {
- ecore_animator_del(sd->down.momentum_animator);
- sd->down.momentum_animator = NULL;
- sd->down.bounce_x_hold = 0;
- sd->down.bounce_y_hold = 0;
- sd->down.ax = 0;
- sd->down.ay = 0;
- sd->down.pdx = 0;
- sd->down.pdy = 0;
- }
- x = nx;
- if ((x + w) > cw) x = cw - w;
- if (x < minx) x = minx;
- _smart_scrollto_x(sd, _elm_config->bring_in_scroll_friction, x);
- y = ny;
- if ((y + h) > ch) y = ch - h;
- if (y < miny) y = miny;
- _smart_scrollto_y(sd, _elm_config->bring_in_scroll_friction, y);
}
void
INTERNAL_ENTRY;
Evas_Coord ww, wh, wx = sd->wx;
+ if (sd->down.now || sd->down.momentum_animator ||
+ sd->down.bounce_x_animator || sd->down.bounce_y_animator ||
+ sd->down.hold_animator || sd->down.onhold_animator) return;
+
/* Flip to RTL cords only if init in RTL mode */
if(sd->is_mirrored)
wx = _elm_smart_scroller_x_mirrored_get(obj, sd->wx);
}
if (ev->button == 1)
{
+ sd->down.hist.est_timestamp_diff =
+ ecore_loop_time_get() - ((double)ev->timestamp / 1000.0);
sd->down.now = 1;
sd->down.dragged = 0;
sd->down.dir_x = 0;
sd->down.sx = x;
sd->down.sy = y;
sd->down.locked = 0;
- memset(&(sd->down.history[0]), 0, sizeof(sd->down.history[0]) * 20);
+ memset(&(sd->down.history[0]), 0, sizeof(sd->down.history[0]) * 60);
#ifdef EVTIME
sd->down.history[0].timestamp = ev->timestamp / 1000.0;
+ sd->down.history[0].localtimestamp = ecore_loop_time_get();
#else
sd->down.history[0].timestamp = ecore_loop_time_get();
#endif
}
}
+static void
+_down_coord_eval(Smart_Data *sd, Evas_Coord *x, Evas_Coord *y)
+{
+ Evas_Coord minx, miny;
+
+ if (sd->down.dir_x) *x = sd->down.sx - (*x - sd->down.x);
+ else *x = sd->down.sx;
+ if (sd->down.dir_y) *y = sd->down.sy - (*y - sd->down.y);
+ else *y = sd->down.sy;
+
+ if ((sd->down.dir_x) || (sd->down.dir_y))
+ {
+ if (!((sd->down.dir_x) && (sd->down.dir_y)))
+ {
+ if (sd->down.dir_x) *y = sd->down.locked_y;
+ else *x = sd->down.locked_x;
+ }
+ }
+
+ sd->pan_func.min_get(sd->pan_obj, &minx, &miny);
+
+ if (*x < minx)
+ *x += (minx - *x) * _elm_config->thumbscroll_border_friction;
+ else if (sd->child.w <= sd->w)
+ *x += (sd->down.sx - *x) * _elm_config->thumbscroll_border_friction;
+ else if ((sd->child.w - sd->w + minx) < *x)
+ *x += (sd->child.w - sd->w + minx - *x) *
+ _elm_config->thumbscroll_border_friction;
+
+ if (*y < miny)
+ *y += (miny - *y) * _elm_config->thumbscroll_border_friction;
+ else if (sd->child.h <= sd->h)
+ *y += (sd->down.sy - *y) * _elm_config->thumbscroll_border_friction;
+ else if ((sd->child.h - sd->h + miny) < *y)
+ *y += (sd->child.h - sd->h + miny - *y) *
+ _elm_config->thumbscroll_border_friction;
+}
+
static Eina_Bool
_smart_hold_animator(void *data)
{
Smart_Data *sd = data;
- Evas_Coord ox, oy;
+ Evas_Coord ox = 0, oy = 0, fx, fy;
+
+ fx = sd->down.hold_x;
+ fy = sd->down.hold_y;
+ if (_elm_config->scroll_smooth_amount > 0.0)
+ {
+ int i, count = 0;
+ Evas_Coord basex, basey, x, y;
+ double dt, t, tdiff, tnow;
+ struct {
+ Evas_Coord x, y, dx, dy;
+ double t, dt;
+ } pos[60];
+
+ // FIXME: assume server and client have the same "timezone"
+ // (0 timepoint) for now. this needs to be figured out in advance
+ // though.
+ tdiff = sd->down.hist.est_timestamp_diff;
+ tnow = ecore_time_get() - tdiff;
+ t = tnow;
+ for (i = 0; i < 60; i++)
+ {
+ // oldest point is sd->down.history[i]
+ // newset is sd->down.history[0]
+ dt = t - sd->down.history[i].timestamp;
+ if (dt > 0.1)
+ {
+ i--;
+ break;
+ }
+ x = sd->down.history[i].x;
+ y = sd->down.history[i].y;
+ _down_coord_eval(sd, &x, &y);
+ if (i == 0)
+ {
+ basex = x;
+ basey = y;
+ }
+ pos[i].x = x - basex;
+ pos[i].y = y - basey;
+ pos[i].t =
+ sd->down.history[i].timestamp - sd->down.history[0].timestamp;
+ count++;
+ }
+ count = i;
+ if (count >= 2)
+ {
+ double dtsum = 0.0, tadd, maxdt;
+ double dxsum = 0.0, dysum = 0.0, xsum = 0.0, ysum = 0.0;
+ for (i = 0; i < (count - 1); i++)
+ {
+ pos[i].dx = pos[i].x - pos[i + 1].x;
+ pos[i].dy = pos[i].y - pos[i + 1].y;
+ pos[i].dt = pos[i].t - pos[i + 1].t;
+ dxsum += pos[i].dx;
+ dysum += pos[i].dy;
+ dtsum += pos[i].dt;
+ xsum += pos[i].x;
+ ysum += pos[i].y;
+ }
+ maxdt = pos[i].t;
+ dxsum /= (double)i;
+ dysum /= (double)i;
+ dtsum /= (double)i;
+ xsum /= (double)i;
+ ysum /= (double)i;
+ tadd = tnow - sd->down.history[0].timestamp + _elm_config->scroll_smooth_future_time;
+ tadd = tadd - (maxdt / 2);
+#define WEIGHT(n, o, v) n = (o * (v - 1.0)) + (n * v)
+ WEIGHT(tadd, sd->down.hist.tadd, _elm_config->scroll_smooth_history_weight);
+ WEIGHT(dxsum, sd->down.hist.dxsum, _elm_config->scroll_smooth_history_weight);
+ WEIGHT(dysum, sd->down.hist.dysum, _elm_config->scroll_smooth_history_weight);
+ fx = basex + xsum + ((dxsum * tadd) / dtsum);
+ fy = basey + ysum + ((dysum * tadd) / dtsum);
+ sd->down.hist.tadd = tadd;
+ sd->down.hist.dxsum = dxsum;
+ sd->down.hist.dysum = dysum;
+ fx = WEIGHT(fx, sd->down.hold_x, _elm_config->scroll_smooth_amount);
+ fy = WEIGHT(fy, sd->down.hold_y, _elm_config->scroll_smooth_amount);
+ }
+ }
+
elm_smart_scroller_child_pos_get(sd->smart_obj, &ox, &oy);
if (sd->down.dir_x)
{
(!elm_widget_drag_child_locked_x_get(sd->widget)))
{
ox = sd->down.hold_x;
+ ox = fx;
}
}
if (sd->down.dir_y)
(!elm_widget_drag_child_locked_y_get(sd->widget)))
{
oy = sd->down.hold_y;
+ oy = fy;
}
}
+
elm_smart_scroller_child_pos_set(sd->smart_obj, ox, oy);
return ECORE_CALLBACK_RENEW;
}
#ifdef SCROLLDBG
printf("------ %i %i\n", ev->canvas.x, ev->canvas.y);
#endif
- for (i = 0; i < 20; i++)
+ for (i = 0; i < 60; i++)
{
dt = t - sd->down.history[i].timestamp;
if (dt > 0.2) break;
ax /= (i + 1);
ay /= (i + 1);
at /= (i + 1);
- at *= 4.0;
+ at *= 4.0; // magic number! just trial and error shows this makes it behave "nicer" and not run off at high speed all the time
dx = ev->canvas.x - ax;
dy = ev->canvas.y - ay;
if (at > 0)
printf("::: %i %i\n", ev->cur.canvas.x, ev->cur.canvas.y);
#endif
memmove(&(sd->down.history[1]), &(sd->down.history[0]),
- sizeof(sd->down.history[0]) * 19);
+ sizeof(sd->down.history[0]) * (60 - 1));
#ifdef EVTIME
sd->down.history[0].timestamp = ev->timestamp / 1000.0;
+ sd->down.history[0].localtimestamp = ecore_loop_time_get();
#else
sd->down.history[0].timestamp = ecore_loop_time_get();
#endif
else x = sd->down.locked_x;
}
}
- if (_elm_config->thumbscroll_border_friction > 0.0)
{
Evas_Coord minx, miny;
sd->pan_func.min_get(sd->pan_obj, &minx, &miny);
x += (sd->child.w - sd->w + minx - x) *
_elm_config->thumbscroll_border_friction;
}
-
+
sd->down.hold_x = x;
sd->down.hold_y = y;
if (!sd->down.hold_animator)
projects / framework / uifw / elementary.git / blobdiff