enlightenment/src/bin/e_livethumb.c

#include "e.h"

#define SMART_NAME     "e_livethumb"
#define API_ENTRY      E_Smart_Data * sd; sd = evas_object_smart_data_get(obj); if ((!obj) || (!sd) || (evas_object_type_get(obj) && strcmp(evas_object_type_get(obj), SMART_NAME)))
#define INTERNAL_ENTRY E_Smart_Data * sd; sd = evas_object_smart_data_get(obj); if (!sd) return;
typedef struct _E_Smart_Data E_Smart_Data;
typedef struct _E_Smart_Item E_Smart_Item;

struct _E_Smart_Data
{
   Evas_Coord   x, y, w, h;

   Evas_Object *smart_obj;
   Evas_Object *evas_obj;
   Evas_Object *thumb_obj;
   Evas        *evas;
   Evas_Coord   vw, vh;
};

/* local subsystem functions */
static void _e_smart_reconfigure(E_Smart_Data *sd);
static void _e_smart_add(Evas_Object *obj);
static void _e_smart_del(Evas_Object *obj);
static void _e_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y);
static void _e_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h);
static void _e_smart_show(Evas_Object *obj);
static void _e_smart_hide(Evas_Object *obj);
static void _e_smart_color_set(Evas_Object *obj, int r, int g, int b, int a);
static void _e_smart_clip_set(Evas_Object *obj, Evas_Object *clip);
static void _e_smart_clip_unset(Evas_Object *obj);
static void _e_smart_init(void);

/* local subsystem globals */
static Evas_Smart *_e_smart = NULL;

/* externally accessible functions */
EAPI Evas_Object *
e_livethumb_add(Evas *e)
{
   _e_smart_init();
   return evas_object_smart_add(e, _e_smart);
}

EAPI Evas *
e_livethumb_evas_get(Evas_Object *obj)
{
   API_ENTRY return NULL;
   return sd->evas;
}

EAPI void
e_livethumb_vsize_set(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
{
   API_ENTRY return;
   if ((w == sd->vw) && (h == sd->vh)) return;
   sd->vw = w;
   sd->vh = h;
   evas_object_image_size_set(sd->evas_obj, sd->vw, sd->vh);
   if (sd->thumb_obj) evas_object_resize(sd->thumb_obj, sd->vw, sd->vh);
}

EAPI void
e_livethumb_vsize_get(Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
{
   API_ENTRY return;
   if (w) *w = sd->vw;
   if (h) *h = sd->vh;
}

static void
_e_livethumb_edje_preloaded(void *data EINA_UNUSED, Evas_Object *obj,
                            const char *emission EINA_UNUSED,
                            const char *source EINA_UNUSED)
{
   evas_object_show(obj);
}

EAPI void
e_livethumb_thumb_set(Evas_Object *obj, Evas_Object *thumb)
{
   API_ENTRY return;
   if (!thumb)
     {
        sd->thumb_obj = NULL;
        return;
     }
   sd->thumb_obj = thumb;
   if (!strcmp(evas_object_type_get(thumb), "edje"))
     {
        edje_object_signal_callback_add(thumb,
                                        "preload,done", "",
                                        _e_livethumb_edje_preloaded, NULL);
        edje_object_preload(thumb, EINA_FALSE);
     }
   else
     {
        evas_object_show(sd->thumb_obj);
     }
   evas_object_move(sd->thumb_obj, 0, 0);
   evas_object_resize(sd->thumb_obj, sd->vw, sd->vh);
}

EAPI Evas_Object *
e_livethumb_thumb_get(Evas_Object *obj)
{
   API_ENTRY return NULL;
   return sd->thumb_obj;
}

/* local subsystem functions */

static void
_e_smart_reconfigure(E_Smart_Data *sd)
{
   evas_object_move(sd->evas_obj, sd->x, sd->y);
   evas_object_resize(sd->evas_obj, sd->w, sd->h);
   evas_object_image_fill_set(sd->evas_obj, 0, 0, sd->w, sd->h);
}

static void
_e_smart_add(Evas_Object *obj)
{
   E_Smart_Data *sd;

   sd = calloc(1, sizeof(E_Smart_Data));
   if (!sd) return;
   evas_object_smart_data_set(obj, sd);

   sd->smart_obj = obj;
   sd->x = 0;
   sd->y = 0;
   sd->w = 0;
   sd->h = 0;
   sd->vw = 1;
   sd->vh = 1;

   sd->evas_obj = ecore_evas_object_image_new(ecore_evas_ecore_evas_get(evas_object_evas_get(obj)));
   ecore_evas_alpha_set(evas_object_data_get(sd->evas_obj, "Ecore_Evas"), 1);
   evas_object_smart_member_add(sd->evas_obj, obj);
   evas_object_image_size_set(sd->evas_obj, sd->vw, sd->vh);
   sd->evas = ecore_evas_get(evas_object_data_get(sd->evas_obj, "Ecore_Evas"));
   e_canvas_add(evas_object_data_get(sd->evas_obj, "Ecore_Evas"));
}

static void
_e_smart_del(Evas_Object *obj)
{
   INTERNAL_ENTRY;
   e_canvas_del(evas_object_data_get(sd->evas_obj, "Ecore_Evas"));
   evas_object_del(sd->evas_obj);
   free(sd);
}

static void
_e_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
{
   INTERNAL_ENTRY;
   if ((sd->x == x) && (sd->y == y)) return;
   sd->x = x;
   sd->y = y;
   _e_smart_reconfigure(sd);
}

static void
_e_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
{
   INTERNAL_ENTRY;
   if ((sd->w == w) && (sd->h == h)) return;
   sd->w = w;
   sd->h = h;
   _e_smart_reconfigure(sd);
}

static void
_e_smart_show(Evas_Object *obj)
{
   INTERNAL_ENTRY;
   evas_object_show(sd->evas_obj);
}

static void
_e_smart_hide(Evas_Object *obj)
{
   INTERNAL_ENTRY;
   evas_object_hide(sd->evas_obj);
}

static void
_e_smart_color_set(Evas_Object *obj, int r, int g, int b, int a)
{
   INTERNAL_ENTRY;
   evas_object_color_set(sd->evas_obj, r, g, b, a);
}

static void
_e_smart_clip_set(Evas_Object *obj, Evas_Object *clip)
{
   INTERNAL_ENTRY;
   evas_object_clip_set(sd->evas_obj, clip);
}

static void
_e_smart_clip_unset(Evas_Object *obj)
{
   INTERNAL_ENTRY;
   evas_object_clip_unset(sd->evas_obj);
}

/* never need to touch this */

static void
_e_smart_init(void)
{
   if (_e_smart) return;
   {
      static const Evas_Smart_Class sc =
      {
         SMART_NAME,
         EVAS_SMART_CLASS_VERSION,
         _e_smart_add,
         _e_smart_del,
         _e_smart_move,
         _e_smart_resize,
         _e_smart_show,
         _e_smart_hide,
         _e_smart_color_set,
         _e_smart_clip_set,
         _e_smart_clip_unset,
         NULL,
         NULL,
         NULL,
         NULL,
         NULL,
         NULL,
         NULL
      };
      _e_smart = evas_smart_class_new(&sc);
   }
}