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efl/src/lib/evas/canvas/evas_object_line.c

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#include "evas_common_private.h"
#include "evas_private.h"
#define MY_CLASS EVAS_LINE_CLASS
/* private magic number for line objects */
static const char o_type[] = "line";
/* private struct for line object internal data */
typedef struct _Evas_Line_Data Evas_Line_Data;
struct _Evas_Line_Data
{
struct {
struct {
Evas_Coord x1, y1, x2, y2;
struct {
Evas_Coord w, h;
} object;
} cache;
Evas_Coord x1, y1, x2, y2;
} cur, prev;
void *engine_data;
Eina_Bool changed : 1;
};
/* private methods for line objects */
static void evas_object_line_init(Evas_Object *eo_obj);
static void evas_object_line_render(Evas_Object *eo_obj,
Evas_Object_Protected_Data *obj,
void *type_private_data,
void *engine, void *output, void *context, void *surface,
int x, int y, Eina_Bool do_async);
static void evas_object_line_render_pre(Evas_Object *eo_obj,
Evas_Object_Protected_Data *obj,
void *type_private_data);
static void evas_object_line_render_post(Evas_Object *eo_obj,
Evas_Object_Protected_Data *obj,
void *type_private_data);
static void *evas_object_line_engine_data_get(Evas_Object *eo_obj);
static int evas_object_line_is_opaque(Evas_Object *eo_obj,
Evas_Object_Protected_Data *obj,
void *type_private_data);
static int evas_object_line_was_opaque(Evas_Object *eo_obj,
Evas_Object_Protected_Data *obj,
void *type_private_data);
static int evas_object_line_is_inside(Evas_Object *eo_obj,
Evas_Object_Protected_Data *obj,
void *type_private_data,
Evas_Coord x, Evas_Coord y);
static int evas_object_line_was_inside(Evas_Object *eo_obj,
Evas_Object_Protected_Data *obj,
void *type_private_data,
Evas_Coord x, Evas_Coord y);
static void evas_object_line_coords_recalc(Evas_Object *eo_obj,
Evas_Object_Protected_Data *obj,
void *type_private_data);
static const Evas_Object_Func object_func =
{
/* methods (compulsory) */
NULL,
evas_object_line_render,
evas_object_line_render_pre,
evas_object_line_render_post,
evas_object_line_engine_data_get,
/* these are optional. NULL = nothing */
NULL,
NULL,
evas_object_line_is_opaque,
evas_object_line_was_opaque,
evas_object_line_is_inside,
evas_object_line_was_inside,
evas_object_line_coords_recalc,
NULL,
NULL,
NULL,
NULL // render_prepare
};
/* the actual api call to add a rect */
/* it has no other api calls as all properties are standard */
EAPI Evas_Object *
evas_object_line_add(Evas *e)
{
e = evas_find(e);
EINA_SAFETY_ON_FALSE_RETURN_VAL(efl_isa(e, EVAS_CANVAS_CLASS), NULL);
return efl_add(EVAS_LINE_CLASS, e, efl_canvas_object_legacy_ctor(efl_added));
}
EOLIAN static void
_evas_line_xy_set(Eo *eo_obj, Evas_Line_Data *_pd, Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2)
{
Evas_Line_Data *o = _pd;
Evas_Coord min_x, max_x, min_y, max_y;
Eina_List *was = NULL;
MAGIC_CHECK(eo_obj, Evas_Object, MAGIC_OBJ);
return;
MAGIC_CHECK_END();
Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
if ((x1 == (obj->cur->geometry.x + o->cur.x1)) &&
(y1 == (obj->cur->geometry.y + o->cur.y1)) &&
(x2 == (obj->cur->geometry.x + o->cur.x2)) &&
(y2 == (obj->cur->geometry.y + o->cur.y2))) return;
evas_object_async_block(obj);
if (!(obj->layer->evas->is_frozen))
{
if (!evas_event_passes_through(eo_obj, obj) &&
!evas_event_freezes_through(eo_obj, obj) &&
!evas_object_is_source_invisible(eo_obj, obj))
was = _evas_pointer_list_in_rect_get(obj->layer->evas, eo_obj, obj,
1, 1);
}
if (x1 < x2)
{
min_x = x1;
max_x = x2;
}
else
{
min_x = x2;
max_x = x1;
}
if (y1 < y2)
{
min_y = y1;
max_y = y2;
}
else
{
min_y = y2;
max_y = y1;
}
EINA_COW_STATE_WRITE_BEGIN(obj, state_write, cur)
{
state_write->geometry.x = min_x;
state_write->geometry.y = min_y;
state_write->geometry.w = max_x - min_x + 2;
state_write->geometry.h = max_y - min_y + 2;
}
EINA_COW_STATE_WRITE_END(obj, state_write, cur);
//// obj->cur->cache.geometry.validity = 0;
o->cur.x1 = x1 - min_x;
o->cur.y1 = y1 - min_y;
o->cur.x2 = x2 - min_x;
o->cur.y2 = y2 - min_y;
o->changed = EINA_TRUE;
evas_object_change(eo_obj, obj);
evas_object_coords_recalc(eo_obj, obj);
evas_object_clip_dirty(eo_obj, obj);
if (!(obj->layer->evas->is_frozen) &&
!evas_event_passes_through(eo_obj, obj) &&
!evas_event_freezes_through(eo_obj, obj) &&
!evas_object_is_source_invisible(eo_obj, obj) &&
obj->cur->visible)
_evas_canvas_event_pointer_in_list_mouse_move_feed(obj->layer->evas, was, eo_obj, obj, 1, 1, EINA_TRUE, NULL);
eina_list_free(was);
evas_object_inform_call_move(eo_obj, obj);
evas_object_inform_call_resize(eo_obj, obj);
}
EOLIAN static void
_evas_line_xy_get(const Eo *eo_obj, Evas_Line_Data *_pd, Evas_Coord *x1, Evas_Coord *y1, Evas_Coord *x2, Evas_Coord *y2)
{
const Evas_Line_Data *o = _pd;
Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
if (x1) *x1 = obj->cur->geometry.x + o->cur.x1;
if (y1) *y1 = obj->cur->geometry.y + o->cur.y1;
if (x2) *x2 = obj->cur->geometry.x + o->cur.x2;
if (y2) *y2 = obj->cur->geometry.y + o->cur.y2;
}
/* all nice and private */
static void
evas_object_line_init(Evas_Object *eo_obj)
{
Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
/* set up methods (compulsory) */
obj->func = &object_func;
obj->private_data = efl_data_ref(eo_obj, MY_CLASS);
obj->type = o_type;
}
EOLIAN static Eo *
_evas_line_efl_object_constructor(Eo *eo_obj, Evas_Line_Data *class_data EINA_UNUSED)
{
Evas_Line_Data *o;
eo_obj = efl_constructor(efl_super(eo_obj, MY_CLASS));
evas_object_line_init(eo_obj);
o = class_data;
/* alloc obj private data */
o->cur.x1 = 0;
o->cur.y1 = 0;
o->cur.x2 = 31;
o->cur.y2 = 31;
o->prev = o->cur;
return eo_obj;
}
static void
evas_object_line_render(Evas_Object *eo_obj EINA_UNUSED,
Evas_Object_Protected_Data *obj,
void *type_private_data,
void *engine, void *output, void *context, void *surface,
int x, int y, Eina_Bool do_async)
{
Evas_Line_Data *o = type_private_data;
/* render object to surface with context, and offxet by x,y */
obj->layer->evas->engine.func->context_color_set(engine,
context,
obj->cur->cache.clip.r,
obj->cur->cache.clip.g,
obj->cur->cache.clip.b,
obj->cur->cache.clip.a);
obj->layer->evas->engine.func->context_multiplier_unset(engine, context);
obj->layer->evas->engine.func->context_anti_alias_set(engine, context,
obj->cur->anti_alias);
obj->layer->evas->engine.func->context_render_op_set(engine, context,
obj->cur->render_op);
obj->layer->evas->engine.func->line_draw(engine, output,
context,
surface,
o->cur.cache.x1 + x,
o->cur.cache.y1 + y,
o->cur.cache.x2 + x,
o->cur.cache.y2 + y,
do_async);
}
static void
evas_object_line_render_pre(Evas_Object *eo_obj,
Evas_Object_Protected_Data *obj,
void *type_private_data)
{
Evas_Line_Data *o = type_private_data;
int is_v, was_v;
Eina_Bool changed_color = EINA_FALSE;
/* dont pre-render the obj twice! */
if (obj->pre_render_done) return;
obj->pre_render_done = EINA_TRUE;
/* pre-render phase. this does anything an object needs to do just before */
/* rendering. this could mean loading the image data, retrieving it from */
/* elsewhere, decoding video etc. */
/* then when this is done the object needs to figure if it changed and */
/* if so what and where and add the appropriate redraw lines */
/* if someone is clipping this obj - go calculate the clipper */
if (obj->cur->clipper)
{
if (obj->cur->cache.clip.dirty)
evas_object_clip_recalc(obj->cur->clipper);
obj->cur->clipper->func->render_pre(obj->cur->clipper->object,
obj->cur->clipper,
obj->cur->clipper->private_data);
}
/* now figure what changed and add draw rects */
/* if it just became visible or invisible */
is_v = evas_object_is_visible(eo_obj, obj);
was_v = evas_object_was_visible(eo_obj, obj);
if (is_v != was_v)
{
evas_object_render_pre_visible_change(&obj->layer->evas->clip_changes, eo_obj, is_v, was_v);
goto done;
}
if (obj->changed_map || obj->changed_src_visible)
{
evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes, eo_obj,
obj);
goto done;
}
/* it's not visible - we accounted for it appearing or not so just abort */
if (!is_v) goto done;
/* clipper changed this is in addition to anything else for obj */
evas_object_render_pre_clipper_change(&obj->layer->evas->clip_changes, eo_obj);
if ((obj->cur->color.r != obj->prev->color.r) ||
(obj->cur->color.g != obj->prev->color.g) ||
(obj->cur->color.b != obj->prev->color.b) ||
(obj->cur->color.a != obj->prev->color.a))
changed_color = EINA_TRUE;
/* if we restacked (layer or just within a layer) */
/* or if it changed anti_alias */
/* or if ii changed render op */
/* or if it changed color */
if ((obj->restack) ||
(obj->cur->anti_alias != obj->prev->anti_alias) ||
(obj->cur->render_op != obj->prev->render_op) ||
(changed_color)
)
{
evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes,
eo_obj, obj);
goto done;
}
/* if it changed geometry - and obviously not visibility or color */
/* calculate differences since we have a constant color fill */
/* we really only need to update the differences */
if ((obj->cur->geometry.x != obj->prev->geometry.x) ||
(obj->cur->geometry.y != obj->prev->geometry.y) ||
(obj->cur->geometry.w != obj->prev->geometry.w) ||
(obj->cur->geometry.h != obj->prev->geometry.h) ||
((o->changed) &&
((o->cur.x1 != o->prev.x1) ||
(o->cur.y1 != o->prev.y1) ||
(o->cur.x2 != o->prev.x2) ||
(o->cur.y2 != o->prev.y2)))
)
{
evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes, eo_obj, obj);
goto done;
}
done:
evas_object_render_pre_effect_updates(&obj->layer->evas->clip_changes, eo_obj, is_v, was_v);
}
static void
evas_object_line_render_post(Evas_Object *eo_obj EINA_UNUSED,
Evas_Object_Protected_Data *obj,
void *type_private_data)
{
Evas_Line_Data *o = type_private_data;
/* this moves the current data to the previous state parts of the object */
/* in whatever way is safest for the object. also if we don't need object */
/* data anymore we can free it if the object deems this is a good idea */
/* remove those pesky changes */
evas_object_clip_changes_clean(obj);
/* move cur to prev safely for object data */
evas_object_cur_prev(obj);
o->prev = o->cur;
}
static void *evas_object_line_engine_data_get(Evas_Object *eo_obj)
{
Evas_Line_Data *o = efl_data_scope_get(eo_obj, MY_CLASS);
return o->engine_data;
}
static int
evas_object_line_is_opaque(Evas_Object *eo_obj EINA_UNUSED,
Evas_Object_Protected_Data *obj EINA_UNUSED,
void *type_private_data EINA_UNUSED)
{
/* this returns 1 if the internal object data implies that the object is */
/* currently fully opaque over the entire line it occupies */
return 0;
}
static int
evas_object_line_was_opaque(Evas_Object *eo_obj EINA_UNUSED,
Evas_Object_Protected_Data *obj EINA_UNUSED,
void *type_private_data EINA_UNUSED)
{
/* this returns 1 if the internal object data implies that the object was */
/* previously fully opaque over the entire line it occupies */
return 0;
}
static int
evas_object_line_is_inside(Evas_Object *eo_obj EINA_UNUSED,
Evas_Object_Protected_Data *obj EINA_UNUSED,
void *type_private_data EINA_UNUSED,
Evas_Coord x EINA_UNUSED, Evas_Coord y EINA_UNUSED)
{
/* this returns 1 if the canvas co-ordinates are inside the object based */
/* on object private data. not much use for rects, but for polys, images */
/* and other complex objects it might be */
return 1;
}
static int
evas_object_line_was_inside(Evas_Object *eo_obj EINA_UNUSED,
Evas_Object_Protected_Data *obj EINA_UNUSED,
void *type_private_data EINA_UNUSED,
Evas_Coord x EINA_UNUSED, Evas_Coord y EINA_UNUSED)
{
/* this returns 1 if the canvas co-ordinates were inside the object based */
/* on object private data. not much use for rects, but for polys, images */
/* and other complex objects it might be */
return 1;
}
static void
evas_object_line_coords_recalc(Evas_Object *eo_obj EINA_UNUSED,
Evas_Object_Protected_Data *obj,
void *type_private_data)
{
Evas_Line_Data *o = type_private_data;
o->cur.cache.x1 = obj->cur->geometry.x + o->cur.x1;
o->cur.cache.y1 = obj->cur->geometry.y + o->cur.y1;
o->cur.cache.x2 = obj->cur->geometry.x + o->cur.x2;
o->cur.cache.y2 = obj->cur->geometry.y + o->cur.y2;
o->cur.cache.object.w = obj->cur->geometry.w;
o->cur.cache.object.h = obj->cur->geometry.h;
}
#include "canvas/evas_line.eo.c"
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