forked from enlightenment/efl
523 lines
19 KiB
C
523 lines
19 KiB
C
#include "evas_common_private.h"
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#include "evas_private.h"
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#include "evas_polygon_private.h"
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#define MY_CLASS EFL_CANVAS_POLYGON_CLASS
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/* private magic number for polygon objects */
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static const char o_type[] = "polygon";
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/* private struct for line object internal data */
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typedef struct _Efl_Canvas_Polygon_Point Efl_Canvas_Polygon_Point;
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struct _Efl_Canvas_Polygon_Point
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{
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Evas_Coord x, y;
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};
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/* private methods for polygon objects */
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static void evas_object_polygon_init(Evas_Object *eo_obj);
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static void evas_object_polygon_render(Evas_Object *eo_obj,
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Evas_Object_Protected_Data *obj,
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void *type_private_data,
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void *engine, void *output, void *context, void *surface,
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int x, int y, Eina_Bool do_async);
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static void evas_object_polygon_free(Evas_Object *eo_obj,
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Evas_Object_Protected_Data *obj,
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void *type_private_data);
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static void evas_object_polygon_render_pre(Evas_Object *eo_obj,
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Evas_Object_Protected_Data *obj,
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void *type_private_data);
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static void evas_object_polygon_render_post(Evas_Object *eo_obj,
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Evas_Object_Protected_Data *obj,
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void *type_private_data);
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static void *evas_object_polygon_engine_data_get(Evas_Object *eo_obj);
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static int evas_object_polygon_is_opaque(Evas_Object *eo_obj,
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Evas_Object_Protected_Data *obj,
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void *type_private_data);
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static int evas_object_polygon_was_opaque(Evas_Object *eo_obj,
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Evas_Object_Protected_Data *obj,
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void *type_private_data);
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static int evas_object_polygon_is_inside(Evas_Object *eo_obj,
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Evas_Object_Protected_Data *obj,
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void *type_private_data,
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Evas_Coord x, Evas_Coord y);
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static int evas_object_polygon_was_inside(Evas_Object *eo_obj,
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Evas_Object_Protected_Data *obj,
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void *type_private_data,
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Evas_Coord x, Evas_Coord y);
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static const Evas_Object_Func object_func =
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{
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/* methods (compulsory) */
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evas_object_polygon_free,
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evas_object_polygon_render,
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evas_object_polygon_render_pre,
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evas_object_polygon_render_post,
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evas_object_polygon_engine_data_get,
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/* these are optional. NULL = nothing */
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NULL,
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NULL,
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evas_object_polygon_is_opaque,
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evas_object_polygon_was_opaque,
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evas_object_polygon_is_inside,
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evas_object_polygon_was_inside,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL // render_prepare
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};
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/* the actual api call to add a rect */
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/* it has no other api calls as all properties are standard */
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EAPI Evas_Object *
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evas_object_polygon_add(Evas *e)
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{
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e = evas_find(e);
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EINA_SAFETY_ON_FALSE_RETURN_VAL(efl_isa(e, EVAS_CANVAS_CLASS), NULL);
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return efl_add(MY_CLASS, e, efl_canvas_object_legacy_ctor(efl_added));
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}
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EOLIAN static Eo *
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_efl_canvas_polygon_efl_object_constructor(Eo *eo_obj, Efl_Canvas_Polygon_Data *class_data EINA_UNUSED)
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{
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eo_obj = efl_constructor(efl_super(eo_obj, MY_CLASS));
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evas_object_polygon_init(eo_obj);
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return eo_obj;
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}
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EOLIAN static void
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_efl_canvas_polygon_point_add(Eo *eo_obj, Efl_Canvas_Polygon_Data *_pd, Eina_Position2D pos)
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{
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Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
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Efl_Canvas_Polygon_Data *o = _pd;
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Efl_Canvas_Polygon_Point *p;
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Evas_Coord min_x, max_x, min_y, max_y;
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Eina_List *was = NULL;
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evas_object_async_block(obj);
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if (!obj->layer->evas->is_frozen)
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{
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if (!evas_event_passes_through(eo_obj, obj) &&
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!evas_event_freezes_through(eo_obj, obj) &&
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!evas_object_is_source_invisible(eo_obj, obj))
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was = _evas_pointer_list_in_rect_get(obj->layer->evas, eo_obj, obj,
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1, 1);
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}
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if (!o->points)
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{
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o->offset.x = obj->cur->geometry.x;
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o->offset.y = obj->cur->geometry.y;
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}
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else
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{
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/* Update all points and take offset into account. */
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Eina_List *over;
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EINA_LIST_FOREACH(o->points, over, p)
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{
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p->x += o->offset.x;
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p->y += o->offset.y;
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}
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}
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p = malloc(sizeof(Efl_Canvas_Polygon_Point));
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if (!p) return;
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p->x = pos.x + o->offset.x;
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p->y = pos.y + o->offset.y;
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if (!o->points)
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{
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EINA_COW_STATE_WRITE_BEGIN(obj, state_write, cur)
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{
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state_write->geometry.x = p->x;
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state_write->geometry.y = p->y;
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state_write->geometry.w = 2;
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state_write->geometry.h = 2;
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}
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EINA_COW_STATE_WRITE_END(obj, state_write, cur);
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}
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else
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{
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if (p->x < obj->cur->geometry.x) min_x = p->x;
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else min_x = obj->cur->geometry.x;
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if (p->x > (obj->cur->geometry.x + obj->cur->geometry.w - 2))
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max_x = p->x;
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else max_x = obj->cur->geometry.x + obj->cur->geometry.w - 2;
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if (p->y < obj->cur->geometry.y) min_y = p->y;
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else min_y = obj->cur->geometry.y;
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if (p->y > (obj->cur->geometry.y + obj->cur->geometry.h - 2))
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max_y = p->y;
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else max_y = obj->cur->geometry.y + obj->cur->geometry.h - 2;
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EINA_COW_STATE_WRITE_BEGIN(obj, state_write, cur)
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{
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state_write->geometry.x = min_x;
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state_write->geometry.y = min_y;
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state_write->geometry.w = max_x - min_x + 2;
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state_write->geometry.h = max_y - min_y + 2;
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}
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EINA_COW_STATE_WRITE_END(obj, state_write, cur);
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}
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o->points = eina_list_append(o->points, p);
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o->geometry = obj->cur->geometry;
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o->offset.x = 0;
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o->offset.y = 0;
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//// obj->cur->cache.geometry.validity = 0;
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o->changed = EINA_TRUE;
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evas_object_change(eo_obj, obj);
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evas_object_clip_dirty(eo_obj, obj);
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evas_object_coords_recalc(eo_obj, obj);
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if (!obj->layer->evas->is_frozen &&
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!evas_event_passes_through(eo_obj, obj) &&
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!evas_event_freezes_through(eo_obj, obj) &&
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!evas_object_is_source_invisible(eo_obj, obj) &&
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obj->cur->visible)
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_evas_canvas_event_pointer_in_list_mouse_move_feed(obj->layer->evas, was, eo_obj, obj, 1, 1, EINA_TRUE, NULL);
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eina_list_free(was);
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evas_object_inform_call_move(eo_obj, obj);
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evas_object_inform_call_resize(eo_obj, obj);
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}
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EOLIAN static void
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_efl_canvas_polygon_points_clear(Eo *eo_obj, Efl_Canvas_Polygon_Data *_pd)
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{
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Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
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Efl_Canvas_Polygon_Data *o = _pd;
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void *list_data;
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Eina_List *was;
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evas_object_async_block(obj);
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was = _evas_pointer_list_in_rect_get(obj->layer->evas, eo_obj, obj, 1, 1);
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EINA_LIST_FREE(o->points, list_data)
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{
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free(list_data);
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}
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EINA_COW_STATE_WRITE_BEGIN(obj, state_write, cur)
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{
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state_write->geometry.x = 0;
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state_write->geometry.y = 0;
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state_write->geometry.w = 0;
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state_write->geometry.h = 0;
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}
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EINA_COW_STATE_WRITE_END(obj, state_write, cur);
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//// obj->cur->cache.geometry.validity = 0;
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o->changed = EINA_TRUE;
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evas_object_change(eo_obj, obj);
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evas_object_clip_dirty(eo_obj, obj);
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evas_object_coords_recalc(eo_obj, obj);
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if (obj->cur->visible)
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_evas_canvas_event_pointer_in_list_mouse_move_feed(obj->layer->evas, was, eo_obj, obj, 1, 1, EINA_FALSE, NULL);
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eina_list_free(was);
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evas_object_inform_call_move(eo_obj, obj);
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evas_object_inform_call_resize(eo_obj, obj);
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}
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/* all nice and private */
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static void
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evas_object_polygon_init(Evas_Object *eo_obj)
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{
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Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
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/* set up methods (compulsory) */
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obj->func = &object_func;
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obj->private_data = efl_data_ref(eo_obj, MY_CLASS);
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obj->type = o_type;
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}
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EOLIAN static void
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_efl_canvas_polygon_efl_object_destructor(Eo *eo_obj, Efl_Canvas_Polygon_Data *_pd EINA_UNUSED)
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{
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Evas_Object_Protected_Data *obj = efl_data_scope_get(eo_obj, EFL_CANVAS_OBJECT_CLASS);
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evas_object_polygon_free(eo_obj, obj, obj->private_data);
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efl_destructor(efl_super(eo_obj, MY_CLASS));
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}
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static void
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evas_object_polygon_free(Evas_Object *eo_obj EINA_UNUSED,
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Evas_Object_Protected_Data *obj,
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void *type_private_data)
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{
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Efl_Canvas_Polygon_Data *o = type_private_data;
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void *list_data;
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/* free obj */
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EINA_LIST_FREE(o->points, list_data)
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{
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free(list_data);
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}
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o->engine_data = obj->layer->evas->engine.func->polygon_points_clear(ENC, o->engine_data);
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}
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static void
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evas_object_polygon_render(Evas_Object *eo_obj EINA_UNUSED,
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Evas_Object_Protected_Data *obj,
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void *type_private_data,
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void *engine, void *output, void *context, void *surface, int x, int y, Eina_Bool do_async)
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{
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Efl_Canvas_Polygon_Data *o = type_private_data;
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Eina_List *l;
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Efl_Canvas_Polygon_Point *p;
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/* render object to surface with context, and offxet by x,y */
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obj->layer->evas->engine.func->context_color_set(engine,
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context,
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obj->cur->cache.clip.r,
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obj->cur->cache.clip.g,
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obj->cur->cache.clip.b,
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obj->cur->cache.clip.a);
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obj->layer->evas->engine.func->context_multiplier_unset(engine, context);
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obj->layer->evas->engine.func->context_render_op_set(engine, context,
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obj->cur->render_op);
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if (o->changed)
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{
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o->engine_data = obj->layer->evas->engine.func->polygon_points_clear(engine, o->engine_data);
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EINA_LIST_FOREACH(o->points, l, p)
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{
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//px = evas_coord_world_x_to_screen(obj->layer->evas, p->x);
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//py = evas_coord_world_y_to_screen(obj->layer->evas, p->y);
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o->engine_data = obj->layer->evas->engine.func->polygon_point_add(engine,
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o->engine_data,
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p->x, p->y);
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}
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}
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if (o->engine_data)
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obj->layer->evas->engine.func->polygon_draw(engine,
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output,
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context,
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surface,
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o->engine_data,
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o->offset.x + x, o->offset.y + y,
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do_async);
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}
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static void
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evas_object_polygon_render_pre(Evas_Object *eo_obj,
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Evas_Object_Protected_Data *obj,
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void *type_private_data)
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{
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Efl_Canvas_Polygon_Data *o = type_private_data;
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int is_v, was_v;
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/* dont pre-render the obj twice! */
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if (obj->pre_render_done) return;
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obj->pre_render_done = EINA_TRUE;
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/* pre-render phase. this does anything an object needs to do just before */
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/* rendering. this could mean loading the image data, retrieving it from */
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/* elsewhere, decoding video etc. */
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/* then when this is done the object needs to figure if it changed and */
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/* if so what and where and add the appropriate redraw lines */
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/* if someone is clipping this obj - go calculate the clipper */
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if (obj->cur->clipper)
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{
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if (obj->cur->cache.clip.dirty)
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evas_object_clip_recalc(obj->cur->clipper);
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obj->cur->clipper->func->render_pre(obj->cur->clipper->object,
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obj->cur->clipper,
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obj->cur->clipper->private_data);
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}
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/* now figure what changed and add draw rects */
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/* if it just became visible or invisible */
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is_v = evas_object_is_visible(obj);
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was_v = evas_object_was_visible(obj);
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if (is_v != was_v)
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{
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evas_object_render_pre_visible_change(&obj->layer->evas->clip_changes, eo_obj, is_v, was_v);
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goto done;
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}
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if (obj->changed_map || obj->changed_src_visible)
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{
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evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes, eo_obj, obj);
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goto done;
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}
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/* it's not visible - we accounted for it appearing or not so just abort */
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if (!is_v) goto done;
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/* clipper changed this is in addition to anything else for obj */
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evas_object_render_pre_clipper_change(&obj->layer->evas->clip_changes, eo_obj);
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/* if we restacked (layer or just within a layer) */
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if (obj->restack)
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{
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evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes, eo_obj, obj);
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goto done;
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}
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/* if it changed render op */
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if (obj->cur->render_op != obj->prev->render_op)
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{
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evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes, eo_obj, obj);
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goto done;
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}
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/* if it changed color */
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if ((obj->cur->color.r != obj->prev->color.r) ||
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(obj->cur->color.g != obj->prev->color.g) ||
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(obj->cur->color.b != obj->prev->color.b) ||
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(obj->cur->color.a != obj->prev->color.a))
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{
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evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes, eo_obj, obj);
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goto done;
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}
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/* if it changed geometry - and obviously not visibility or color */
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/* calculate differences since we have a constant color fill */
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/* we really only need to update the differences */
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if ((obj->cur->geometry.x != obj->prev->geometry.x) ||
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(obj->cur->geometry.y != obj->prev->geometry.y) ||
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(obj->cur->geometry.w != obj->prev->geometry.w) ||
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(obj->cur->geometry.h != obj->prev->geometry.h) ||
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(o->changed))
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{
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evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes, eo_obj, obj);
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goto done;
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}
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done:
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if ((obj->cur->geometry.x != obj->prev->geometry.x) ||
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(obj->cur->geometry.y != obj->prev->geometry.y))
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{
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if (!o->changed)
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{
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o->offset.x = obj->cur->geometry.x - obj->prev->geometry.x;
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o->offset.y = obj->cur->geometry.y - obj->prev->geometry.y;
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}
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else
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{
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o->offset.x = obj->cur->geometry.x - o->geometry.x;
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o->offset.y = obj->cur->geometry.y - o->geometry.y;
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}
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}
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evas_object_render_pre_effect_updates(&obj->layer->evas->clip_changes, eo_obj, is_v, was_v);
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}
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static void
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evas_object_polygon_render_post(Evas_Object *eo_obj EINA_UNUSED,
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Evas_Object_Protected_Data *obj,
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void *type_private_data EINA_UNUSED)
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{
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/* this moves the current data to the previous state parts of the object */
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/* in whatever way is safest for the object. also if we don't need object */
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/* data anymore we can free it if the object deems this is a good idea */
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/* remove those pesky changes */
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evas_object_clip_changes_clean(obj);
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/* move cur to prev safely for object data */
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evas_object_cur_prev(obj);
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}
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static void *evas_object_polygon_engine_data_get(Evas_Object *eo_obj)
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{
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Efl_Canvas_Polygon_Data *o = efl_data_scope_get(eo_obj, MY_CLASS);
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return o->engine_data;
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}
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static int
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evas_object_polygon_is_opaque(Evas_Object *eo_obj EINA_UNUSED,
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Evas_Object_Protected_Data *obj EINA_UNUSED,
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void *type_private_data EINA_UNUSED)
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{
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/* this returns 1 if the internal object data implies that the object is */
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/* currently fully opaque over the entire line it occupies */
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return 0;
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}
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static int
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evas_object_polygon_was_opaque(Evas_Object *eo_obj EINA_UNUSED,
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Evas_Object_Protected_Data *obj EINA_UNUSED,
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void *type_private_data EINA_UNUSED)
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{
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/* this returns 1 if the internal object data implies that the object was */
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/* previously fully opaque over the entire line it occupies */
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return 0;
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}
|
|
|
|
/* We count the number of edges a "ray" 90 degs upwards from our point
|
|
* intersects with. If it's even, we are outside of the polygon, if it's odd,
|
|
* we are inside of it. */
|
|
static int
|
|
evas_object_polygon_is_inside(Evas_Object *eo_obj EINA_UNUSED,
|
|
Evas_Object_Protected_Data *obj EINA_UNUSED,
|
|
void *type_private_data,
|
|
Evas_Coord x, Evas_Coord y)
|
|
{
|
|
Efl_Canvas_Polygon_Data *o = type_private_data;
|
|
int num_edges = 0; /* Number of edges we crossed */
|
|
Eina_List *itr;
|
|
Efl_Canvas_Polygon_Point *p;
|
|
|
|
if (!o->points) return 0;
|
|
|
|
/* Adjust X and Y according to current geometry */
|
|
x -= o->offset.x;
|
|
y -= o->offset.y;
|
|
|
|
if (eina_list_count(o->points) == 1)
|
|
{
|
|
p = eina_list_data_get(o->points);
|
|
return ((p->x == x) && (p->y == y));
|
|
}
|
|
|
|
EINA_LIST_FOREACH(o->points, itr, p)
|
|
{
|
|
Evas_Coord line_y;
|
|
Eina_List *next = eina_list_next(itr);
|
|
Efl_Canvas_Polygon_Point *p_next;
|
|
/* Get the next, or if there's no next, take the first */
|
|
if (next)
|
|
{
|
|
p_next = eina_list_data_get(next);
|
|
}
|
|
else
|
|
{
|
|
p_next = eina_list_data_get(o->points);
|
|
}
|
|
|
|
/* Make sure that we are directly below the edge,
|
|
* and that p->x != p_next->x */
|
|
if (((p->x < p_next->x) && (p->x <= x) && (x < p_next->x)) ||
|
|
((p->x > p_next->x) && (p_next->x < x) && (x <= p->x)))
|
|
{
|
|
line_y = ((double) (p->y - p_next->y) /
|
|
(double) (p->x - p_next->x)) *
|
|
(x - p_next->x) + p_next->y;
|
|
/* We crossed that edge if the line is directly above us */
|
|
if (line_y < y)
|
|
num_edges++;
|
|
}
|
|
}
|
|
|
|
/* Return true if num_edges is odd */
|
|
return ((num_edges % 2) == 1);
|
|
}
|
|
|
|
static int
|
|
evas_object_polygon_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;
|
|
}
|
|
|
|
EAPI void
|
|
evas_object_polygon_point_add(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
|
|
{
|
|
efl_canvas_polygon_point_add(obj, EINA_POSITION2D(x, y));
|
|
}
|
|
|
|
EAPI void
|
|
evas_object_polygon_points_clear(Evas_Object *obj)
|
|
{
|
|
efl_canvas_polygon_points_clear(obj);
|
|
}
|
|
|
|
#include "canvas/efl_canvas_polygon.eo.c"
|