efl/legacy/evas/src/lib/canvas/evas_clip.c

175 lines
4.3 KiB
C

#include "evas_common.h"
#include "evas_private.h"
#include "Evas.h"
void
evas_object_clip_recalc(Evas_Object *obj)
{
int cx, cy, cw, ch, cvis, cr, cg, cb, ca;
int nx, ny, nw, nh, nvis, nr, ng, nb, na;
evas_object_coords_recalc(obj);
cx = obj->cur.cache.geometry.x; cy = obj->cur.cache.geometry.y;
cw = obj->cur.cache.geometry.w; ch = obj->cur.cache.geometry.h;
if (obj->cur.color.a == 0) cvis = 0;
else cvis = obj->cur.visible;
cr = obj->cur.color.r; cg = obj->cur.color.g;
cb = obj->cur.color.b; ca = obj->cur.color.a;
if (obj->cur.clipper)
{
evas_object_clip_recalc(obj->cur.clipper);
nx = obj->cur.clipper->cur.cache.clip.x;
ny = obj->cur.clipper->cur.cache.clip.y;
nw = obj->cur.clipper->cur.cache.clip.w;
nh = obj->cur.clipper->cur.cache.clip.h;
nvis = obj->cur.clipper->cur.cache.clip.visible;
nr = obj->cur.clipper->cur.cache.clip.r;
ng = obj->cur.clipper->cur.cache.clip.g;
nb = obj->cur.clipper->cur.cache.clip.b;
na = obj->cur.clipper->cur.cache.clip.a;
RECTS_CLIP_TO_RECT(cx, cy, cw, ch, nx, ny, nw, nh);
cvis = cvis * nvis;
cr = (cr * (nr + 1)) >> 8;
cg = (cg * (ng + 1)) >> 8;
cb = (cb * (nb + 1)) >> 8;
ca = (ca * (na + 1)) >> 8;
}
if ((ca == 0) || (cw <= 0) || (ch <= 0)) cvis = 0;
obj->cur.cache.clip.x = cx;
obj->cur.cache.clip.y = cy;
obj->cur.cache.clip.w = cw;
obj->cur.cache.clip.h = ch;
obj->cur.cache.clip.visible = cvis;
obj->cur.cache.clip.r = cr;
obj->cur.cache.clip.g = cg;
obj->cur.cache.clip.b = cb;
obj->cur.cache.clip.a = ca;
}
void
evas_object_recalc_clippees(Evas_Object *obj)
{
Evas_List *l;
evas_object_clip_recalc(obj);
for (l = obj->clip.clipees; l; l = l->next)
{
evas_object_recalc_clippees(l->data);
}
}
int
evas_object_clippers_is_visible(Evas_Object *obj)
{
if (obj->cur.visible)
{
if (obj->cur.clipper)
return evas_object_clippers_is_visible(obj->cur.clipper);
return 1;
}
return 0;
}
int
evas_object_clippers_was_visible(Evas_Object *obj)
{
if (obj->prev.visible)
{
if (obj->prev.clipper)
return evas_object_clippers_is_visible(obj->prev.clipper);
return 1;
}
return 0;
}
/* public functions */
void
evas_object_clip_set(Evas_Object *obj, Evas_Object *clip)
{
MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
return;
MAGIC_CHECK_END();
if (!clip)
{
evas_object_clip_unset(obj);
return;
}
MAGIC_CHECK(clip, Evas_Object, MAGIC_OBJ);
return;
MAGIC_CHECK_END();
if (obj->cur.clipper == clip) return;
if (obj->smart.smart)
{
if (obj->smart.smart->func_clip_set)
obj->smart.smart->func_clip_set(obj, clip);
}
if (obj->cur.clipper)
{
/* unclip */
obj->cur.clipper->clip.clipees = evas_list_remove(obj->cur.clipper->clip.clipees, obj);
evas_object_change(obj);
obj->cur.clipper = NULL;
}
/* clip me */
obj->cur.clipper = clip;
clip->clip.clipees = evas_list_append(clip->clip.clipees, obj);
evas_object_change(obj);
evas_object_recalc_clippees(obj);
if (!obj->smart.smart)
{
if (evas_object_is_in_output_rect(obj,
obj->layer->evas->pointer.x,
obj->layer->evas->pointer.y, 1, 1))
evas_event_feed_mouse_move(obj->layer->evas,
obj->layer->evas->pointer.x,
obj->layer->evas->pointer.y);
}
}
Evas_Object *
evas_object_clip_get(Evas_Object *obj)
{
MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
return NULL;
MAGIC_CHECK_END();
return obj->cur.clipper;
}
void
evas_object_clip_unset(Evas_Object *obj)
{
MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
return;
MAGIC_CHECK_END();
if (!obj->cur.clipper) return;
/* unclip */
if (obj->smart.smart)
{
if (obj->smart.smart->func_clip_unset)
obj->smart.smart->func_clip_unset(obj);
}
obj->cur.clipper->clip.clipees = evas_list_remove(obj->cur.clipper->clip.clipees, obj);
obj->cur.clipper = NULL;
evas_object_change(obj);
evas_object_recalc_clippees(obj);
if (!obj->smart.smart)
{
if (evas_object_is_in_output_rect(obj,
obj->layer->evas->pointer.x,
obj->layer->evas->pointer.y, 1, 1))
evas_event_feed_mouse_move(obj->layer->evas,
obj->layer->evas->pointer.x,
obj->layer->evas->pointer.y);
}
}
Evas_List *
evas_object_clipees_get(Evas_Object *obj)
{
MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
return NULL;
MAGIC_CHECK_END();
return obj->clip.clipees;
}