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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"
#include "Eo.h"
EAPI Eo_Op EVAS_OBJ_LINE_BASE_ID = EO_NOOP;
#define MY_CLASS EVAS_OBJ_LINE_CLASS
/* private magic number for line objects */
static const char o_type[] = "line";
/* private struct for line object internal data */
typedef struct _Evas_Object_Line Evas_Object_Line;
struct _Evas_Object_Line
{
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 *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 unsigned int evas_object_line_id_get(Evas_Object *eo_obj);
static unsigned int evas_object_line_visual_id_get(Evas_Object *eo_obj);
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_id_get,
evas_object_line_visual_id_get,
evas_object_line_engine_data_get,
/* these are optional. NULL = nothing */
NULL,
NULL,
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
};
/* 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)
{
MAGIC_CHECK(e, Evas, MAGIC_EVAS);
return NULL;
MAGIC_CHECK_END();
Evas_Object *eo_obj = eo_add(EVAS_OBJ_LINE_CLASS, e);
eo_unref(eo_obj);
return eo_obj;
}
EAPI void
evas_object_line_xy_set(Evas_Object *eo_obj, Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2)
{
eo_do(eo_obj, evas_obj_line_xy_set(x1, y1, x2, y2));
}
static void
_line_xy_set(Eo *eo_obj, void *_pd, va_list *list)
{
Evas_Coord x1 = va_arg(*list, Evas_Coord);
Evas_Coord y1 = va_arg(*list, Evas_Coord);
Evas_Coord x2 = va_arg(*list, Evas_Coord);
Evas_Coord y2 = va_arg(*list, Evas_Coord);
Evas_Object_Line *o = _pd;
Evas_Coord min_x, max_x, min_y, max_y;
int is, was = 0;
MAGIC_CHECK(eo_obj, Evas_Object, MAGIC_OBJ);
return;
MAGIC_CHECK_END();
if ((x1 == o->cur.x1) && (y1 == o->cur.y1) &&
(x2 == o->cur.x2) && (y2 == o->cur.y2)) return;
Evas_Object_Protected_Data *obj = eo_data_scope_get(eo_obj, EVAS_OBJ_CLASS);
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_object_is_in_output_rect(eo_obj, obj,
obj->layer->evas->pointer.x,
obj->layer->evas->pointer.y,
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))
{
is = evas_object_is_in_output_rect(eo_obj, obj,
obj->layer->evas->pointer.x,
obj->layer->evas->pointer.y, 1, 1);
if (!evas_event_passes_through(eo_obj, obj) &&
!evas_event_freezes_through(eo_obj, obj) &&
!evas_object_is_source_invisible(eo_obj, obj))
{
if ((is ^ was) && obj->cur->visible)
evas_event_feed_mouse_move(obj->layer->evas->evas,
obj->layer->evas->pointer.x,
obj->layer->evas->pointer.y,
obj->layer->evas->last_timestamp,
NULL);
}
}
evas_object_inform_call_move(eo_obj, obj);
evas_object_inform_call_resize(eo_obj);
}
EAPI void
evas_object_line_xy_get(const Evas_Object *eo_obj, Evas_Coord *x1, Evas_Coord *y1, Evas_Coord *x2, Evas_Coord *y2)
{
MAGIC_CHECK(eo_obj, Evas_Object, MAGIC_OBJ);
if (x1) *x1 = 0;
if (y1) *y1 = 0;
if (x2) *x2 = 0;
if (y2) *y2 = 0;
return;
MAGIC_CHECK_END();
eo_do((Eo *)eo_obj, evas_obj_line_xy_get(x1, y1, x2, y2));
}
static void
_line_xy_get(Eo *eo_obj, void *_pd, va_list *list)
{
const Evas_Object_Line *o = _pd;
Evas_Coord *x1 = va_arg(*list, Evas_Coord *);
Evas_Coord *y1 = va_arg(*list, Evas_Coord *);
Evas_Coord *x2 = va_arg(*list, Evas_Coord *);
Evas_Coord *y2 = va_arg(*list, Evas_Coord *);
Evas_Object_Protected_Data *obj = eo_data_scope_get(eo_obj, EVAS_OBJ_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 = eo_data_scope_get(eo_obj, EVAS_OBJ_CLASS);
/* set up methods (compulsory) */
obj->func = &object_func;
obj->private_data = eo_data_ref(eo_obj, MY_CLASS);
obj->type = o_type;
}
static void
_constructor(Eo *eo_obj, void *class_data, va_list *list EINA_UNUSED)
{
Evas_Object_Protected_Data *obj;
Evas_Object_Line *o;
Eo *parent;
eo_do_super(eo_obj, MY_CLASS, eo_constructor());
obj = eo_data_scope_get(eo_obj, EVAS_OBJ_CLASS);
evas_object_line_init(eo_obj);
eo_do(eo_obj, eo_parent_get(&parent));
evas_object_inject(eo_obj, obj, evas_object_evas_get(parent));
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;
}
static void
evas_object_line_render(Evas_Object *eo_obj EINA_UNUSED,
Evas_Object_Protected_Data *obj,
void *type_private_data,
void *output, void *context, void *surface, int x, int y, Eina_Bool do_async)
{
Evas_Object_Line *o = type_private_data;
/* render object to surface with context, and offxet by x,y */
obj->layer->evas->engine.func->context_color_set(output,
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(output,
context);
obj->layer->evas->engine.func->context_anti_alias_set(output, context,
obj->cur->anti_alias);
obj->layer->evas->engine.func->context_render_op_set(output, context,
obj->cur->render_op);
obj->layer->evas->engine.func->line_draw(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_Object_Line *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,
Evas_Object_Protected_Data *obj EINA_UNUSED,
void *type_private_data)
{
Evas_Object_Line *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(eo_obj);
/* move cur to prev safely for object data */
evas_object_cur_prev(eo_obj);
o->prev = o->cur;
}
static unsigned int evas_object_line_id_get(Evas_Object *eo_obj)
{
Evas_Object_Line *o = eo_data_scope_get(eo_obj, MY_CLASS);
if (!o) return 0;
return MAGIC_OBJ_LINE;
}
static unsigned int evas_object_line_visual_id_get(Evas_Object *eo_obj)
{
Evas_Object_Line *o = eo_data_scope_get(eo_obj, MY_CLASS);
if (!o) return 0;
return MAGIC_OBJ_SHAPE;
}
static void *evas_object_line_engine_data_get(Evas_Object *eo_obj)
{
Evas_Object_Line *o = eo_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_Object_Line *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;
}
static void
_class_constructor(Eo_Class *klass)
{
const Eo_Op_Func_Description func_desc[] = {
EO_OP_FUNC(EO_BASE_ID(EO_BASE_SUB_ID_CONSTRUCTOR), _constructor),
EO_OP_FUNC(EVAS_OBJ_LINE_ID(EVAS_OBJ_LINE_SUB_ID_XY_SET), _line_xy_set),
EO_OP_FUNC(EVAS_OBJ_LINE_ID(EVAS_OBJ_LINE_SUB_ID_XY_GET), _line_xy_get),
EO_OP_FUNC_SENTINEL
};
eo_class_funcs_set(klass, func_desc);
}
static const Eo_Op_Description op_desc[] = {
EO_OP_DESCRIPTION(EVAS_OBJ_LINE_SUB_ID_XY_SET, "Sets the coordinates of the end points of the given evas line object."),
EO_OP_DESCRIPTION(EVAS_OBJ_LINE_SUB_ID_XY_GET, "Retrieves the coordinates of the end points of the given evas line object."),
EO_OP_DESCRIPTION_SENTINEL
};
static const Eo_Class_Description class_desc = {
EO_VERSION,
"Evas_Object_Line",
EO_CLASS_TYPE_REGULAR,
EO_CLASS_DESCRIPTION_OPS(&EVAS_OBJ_LINE_BASE_ID, op_desc, EVAS_OBJ_LINE_SUB_ID_LAST),
NULL,
sizeof(Evas_Object_Line),
_class_constructor,
NULL
};
EO_DEFINE_CLASS(evas_object_line_class_get, &class_desc, EVAS_OBJ_CLASS, NULL);
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