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#include "evas_common.h"
#include "evas_private.h"
void
evas_object_clip_dirty(Evas_Object *obj)
{
Eina_List *l;
Evas_Object *data;
if (obj->cur.cache.clip.dirty) return ;
obj->cur.cache.clip.dirty = 1;
EINA_LIST_FOREACH(obj->clip.clipees, l, data)
evas_object_clip_dirty(data);
}
void
evas_object_recalc_clippees(Evas_Object *obj)
{
Eina_List *l;
Evas_Object *data;
if (obj->cur.cache.clip.dirty)
{
evas_object_clip_recalc(obj);
EINA_LIST_FOREACH(obj->clip.clipees, l, data)
evas_object_recalc_clippees(data);
}
}
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;
}
/* aaaaargh (pirate voice) ... notes!
*
* we have a big problem until now that's gone undetected... until yesterday.
* that problem involves clips and maps and smart objects. hooray! 3 of the
* more complex bits of evas - and maps and smart objects being one of the
* nastiest ones.
*
* what is the problem? when a clip crosses a map boundary. that is to say
* that when the clipper and clippee are not within the child tree of the
* mapped object. in this case "bad stuff" happens. basically as clips are
* then used to render objects, but they no longer apply as you'd expect as
* the map transfomr the objects to-be-clipped separately from the objects
* that clip them and this whole relationship is broken by maps. it somehow
* managed to not break with the advent of smart objects. lucky me... but
* maps killed it. now... what do we do? that is a good question. detect
* such a broken link and "turn off clipping" in that event - sure. but this
* isn't going to be cheap as ANY addition or deletion of a map to an object
* or any change in clipper of an object or any change in smart object
* membership needs to walk the obj tree both up and down from the changed
* object and probably walk entire object trees to find these and mark them.
* thats silly-expensive and i was about to fix it that way but it has since
* dawned on me that that is just going to kill performance in some critical
* areas like during object setup and manipulation, as well as teardown.
*
* aaaaagh! best for now is to document this as a "don't do it damnit!" thing
* and have the apps avoid it. but even then - how to do this? this is not
* easy. everywhere i turn so far i come up to either expensive operations,
* breaks in logic, or nasty re-work of apps or4 the whole concept of clipping,
* smart objects and maps... and that will have to wait for evas 2.0
*
* the below does clip fixups etc. in the even a clip spans a map boundary.
* not pretty, but necessary.
*/
#define MAP_ACROSS 1
static void
evas_object_child_map_across_mark(Evas_Object *obj, Evas_Object *map_obj, Eina_Bool force)
{
#ifdef MAP_ACROSS
if ((obj->cur.map_parent != map_obj) || force)
{
obj->cur.map_parent = map_obj;
obj->cur.cache.clip.dirty = 1;
evas_object_clip_recalc(obj);
if (obj->smart.smart)
{
Evas_Object *obj2;
EINA_INLIST_FOREACH(evas_object_smart_members_get_direct(obj), obj2)
{
// if obj has its own map - skip it. already done
if ((obj2->cur.map) && (obj2->cur.usemap)) continue;
evas_object_child_map_across_mark(obj2, map_obj, force);
}
}
else if (obj->clip.clipees)
{
Eina_List *l;
Evas_Object *obj2;
EINA_LIST_FOREACH(obj->clip.clipees, l, obj2)
evas_object_child_map_across_mark(obj2, map_obj, force);
}
}
#endif
}
void
evas_object_clip_across_check(Evas_Object *obj)
{
#ifdef MAP_ACROSS
if (!obj->cur.clipper) return;
if (obj->cur.clipper->cur.map_parent != obj->cur.map_parent)
evas_object_child_map_across_mark(obj, obj->cur.map_parent, 1);
#endif
}
void
evas_object_clip_across_clippees_check(Evas_Object *obj)
{
#ifdef MAP_ACROSS
Eina_List *l;
Evas_Object *obj2;
if (!obj->clip.clipees) return;
// schloooooooooooow:
// evas_object_child_map_across_mark(obj, obj->cur.map_parent, 1);
// buggy:
evas_object_child_map_across_mark(obj, obj->cur.map_parent, 0);
if (obj->cur.cache.clip.dirty)
{
EINA_LIST_FOREACH(obj->clip.clipees, l, obj2)
evas_object_clip_across_clippees_check(obj2);
}
#endif
}
// this function is called on an object when map is enabled or disabled on it
// thus creating a "map boundary" at that point.
//
// FIXME: flip2 test broken in elm - might be show/hide of clips
void
evas_object_mapped_clip_across_mark(Evas_Object *obj)
{
#ifdef MAP_ACROSS
if ((obj->cur.map) && (obj->cur.usemap))
evas_object_child_map_across_mark(obj, obj, 0);
else
{
if (obj->smart.parent)
evas_object_child_map_across_mark
(obj, obj->smart.parent->cur.map_parent, 0);
else
evas_object_child_map_across_mark(obj, NULL, 0);
}
#endif
}
/* public functions */
extern const char *o_rect_type;
EAPI 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 == clip) return;
if (evas_object_intercept_call_clip_set(obj, clip)) return;
// illegal to set anything but a rect as a clip
if (clip->type != o_rect_type)
{
ERR("For now a clip on other object than a rectangle is disabled");
return;
}
if (obj->smart.smart)
{
if (obj->smart.smart->smart_class->clip_set)
obj->smart.smart->smart_class->clip_set(obj, clip);
}
if (obj->cur.clipper)
{
/* unclip */
obj->cur.clipper->clip.clipees = eina_list_remove(obj->cur.clipper->clip.clipees, obj);
if (!obj->cur.clipper->clip.clipees)
{
obj->cur.clipper->cur.have_clipees = 0;
if (obj->cur.clipper->cur.visible)
evas_damage_rectangle_add(obj->cur.clipper->layer->evas,
obj->cur.clipper->cur.geometry.x,
obj->cur.clipper->cur.geometry.y,
obj->cur.clipper->cur.geometry.w,
obj->cur.clipper->cur.geometry.h);
}
evas_object_change(obj->cur.clipper);
evas_object_change(obj);
obj->cur.clipper = NULL;
}
/* clip me */
if ((!clip->clip.clipees) && (clip->cur.visible))
{
/* Basically it just went invisible */
clip->changed = 1;
clip->layer->evas->changed = 1;
evas_damage_rectangle_add(clip->layer->evas,
clip->cur.geometry.x, clip->cur.geometry.y,
clip->cur.geometry.w, clip->cur.geometry.h);
}
obj->cur.clipper = clip;
clip->clip.clipees = eina_list_append(clip->clip.clipees, obj);
if (clip->clip.clipees) clip->cur.have_clipees = 1;
/* If it's NOT a rectangle set the mask bits too */
/* FIXME: Optmz ths chck */
if (strcmp(evas_object_type_get(clip),"rectangle") == 0)
obj->cur.mask = NULL;
else
{
void *engdata;
obj->cur.mask = clip;
engdata = clip->func->engine_data_get(clip);
/* FIXME: Images only */
clip->layer->evas->engine.func->image_mask_create(
clip->layer->evas->engine.data.output,
engdata);
}
evas_object_change(clip);
evas_object_change(obj);
evas_object_clip_dirty(obj);
evas_object_recalc_clippees(obj);
if ((!obj->smart.smart) &&
(!((obj->cur.map) && (obj->cur.usemap))))
{
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,
obj->layer->evas->last_timestamp,
NULL);
}
evas_object_clip_across_check(obj);
}
EAPI Evas_Object *
evas_object_clip_get(const Evas_Object *obj)
{
MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
return NULL;
MAGIC_CHECK_END();
return obj->cur.clipper;
}
EAPI 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 (evas_object_intercept_call_clip_unset(obj)) return;
if (obj->smart.smart)
{
if (obj->smart.smart->smart_class->clip_unset)
obj->smart.smart->smart_class->clip_unset(obj);
}
if (obj->cur.clipper)
{
obj->cur.clipper->clip.clipees = eina_list_remove(obj->cur.clipper->clip.clipees, obj);
if (!obj->cur.clipper->clip.clipees)
{
obj->cur.clipper->cur.have_clipees = 0;
if (obj->cur.clipper->cur.visible)
evas_damage_rectangle_add(obj->cur.clipper->layer->evas,
obj->cur.clipper->cur.geometry.x,
obj->cur.clipper->cur.geometry.y,
obj->cur.clipper->cur.geometry.w,
obj->cur.clipper->cur.geometry.h);
}
evas_object_change(obj->cur.clipper);
}
obj->cur.clipper = NULL;
evas_object_change(obj);
evas_object_clip_dirty(obj);
evas_object_recalc_clippees(obj);
if ((!obj->smart.smart) &&
(!((obj->cur.map) && (obj->cur.usemap))))
{
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,
obj->layer->evas->last_timestamp,
NULL);
}
evas_object_clip_across_check(obj);
}
EAPI const Eina_List *
evas_object_clipees_get(const Evas_Object *obj)
{
MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
return NULL;
MAGIC_CHECK_END();
return obj->clip.clipees;
}
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