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#include <assert.h>
#include "private.h"

typedef struct _Elm_Params_Photocam
{
   Elm_Params base;
   const char *file;
   double zoom;
   const char *zoom_mode;
   Eina_Bool paused:1;
   Eina_Bool paused_exists:1;
   Eina_Bool zoom_exists:1;
} Elm_Params_Photocam;

static const char* choices[] = { "manual", "auto fit", "auto fill", NULL };

static Elm_Photocam_Zoom_Mode
_zoom_mode_setting_get(const char *zoom_mode_str)
{
   unsigned int i;

   assert(sizeof(choices)/sizeof(choices[0]) == ELM_PHOTOCAM_ZOOM_MODE_LAST + 1);

   for (i = 0; i < ELM_PHOTOCAM_ZOOM_MODE_LAST; i++)
     {
        if (!strcmp(zoom_mode_str, choices[i]))
          return i;
     }
   return ELM_PHOTOCAM_ZOOM_MODE_LAST;
}

static void
external_photocam_state_set(void *data EINA_UNUSED, Evas_Object *obj,
                            const void *from_params, const void *to_params,
                            float pos EINA_UNUSED)
{
   const Elm_Params_Photocam *p;

   if (to_params) p = to_params;
   else if (from_params) p = from_params;
   else return;

   if (p->file)
     elm_photocam_file_set(obj, p->file);
   if (p->zoom_exists)
     elm_photocam_zoom_set(obj, p->zoom);
   if (p->zoom_mode)
     {
        Elm_Photocam_Zoom_Mode set = _zoom_mode_setting_get(p->zoom_mode);
        if (set == ELM_PHOTOCAM_ZOOM_MODE_LAST) return;
        elm_photocam_zoom_mode_set(obj, set);
     }
   if (p->paused_exists)
     elm_photocam_paused_set(obj, p->paused);
}

static Eina_Bool
external_photocam_param_set(void *data EINA_UNUSED, Evas_Object *obj,
                            const Edje_External_Param *param)
{
   if (!strcmp(param->name, "file"))
     {
        if (param->type == EDJE_EXTERNAL_PARAM_TYPE_STRING)
          {
             elm_photocam_file_set(obj, param->s);
             return EINA_TRUE;
          }
     }
   else if (!strcmp(param->name, "zoom"))
     {
        if (param->type == EDJE_EXTERNAL_PARAM_TYPE_DOUBLE)
          {
             elm_photocam_zoom_set(obj, param->d);
             return EINA_TRUE;
          }
     }
   else if (!strcmp(param->name, "zoom mode"))
     {
        if (param->type == EDJE_EXTERNAL_PARAM_TYPE_STRING)
          {
             Elm_Photocam_Zoom_Mode set = _zoom_mode_setting_get(param->s);
             if (set == ELM_PHOTOCAM_ZOOM_MODE_LAST) return EINA_FALSE;
             elm_photocam_zoom_mode_set(obj, set);
             return EINA_TRUE;
          }
     }
   else if (!strcmp(param->name, "paused"))
     {
        if (param->type == EDJE_EXTERNAL_PARAM_TYPE_BOOL)
          {
             elm_photocam_paused_set(obj, param->i);
             return EINA_TRUE;
          }
     }

   ERR("unknown parameter '%s' of type '%s'",
       param->name, edje_external_param_type_str(param->type));

   return EINA_FALSE;
}

static Eina_Bool
external_photocam_param_get(void *data EINA_UNUSED, const Evas_Object *obj,
                            Edje_External_Param *param)
{
   if (!strcmp(param->name, "file"))
     {
        if (param->type == EDJE_EXTERNAL_PARAM_TYPE_STRING)
          {
             param->s = elm_photocam_file_get(obj);
             return EINA_TRUE;
          }
     }
   else if (!strcmp(param->name, "zoom"))
     {
        if (param->type == EDJE_EXTERNAL_PARAM_TYPE_DOUBLE)
          {
             param->d = elm_photocam_zoom_get(obj);
             return EINA_TRUE;
          }
     }
   else if (!strcmp(param->name, "zoom mode"))
     {
        if (param->type == EDJE_EXTERNAL_PARAM_TYPE_STRING)
          {
             Elm_Photocam_Zoom_Mode zoom_mode_set =
                elm_photocam_zoom_mode_get(obj);

             if (zoom_mode_set == ELM_PHOTOCAM_ZOOM_MODE_LAST)
               return EINA_FALSE;

             param->s = choices[zoom_mode_set];
             return EINA_TRUE;
          }
     }
   else if (!strcmp(param->name, "paused"))
     {
        if (param->type == EDJE_EXTERNAL_PARAM_TYPE_BOOL)
          {
             param->i = elm_photocam_paused_get(obj);
             return EINA_TRUE;
          }
     }

   ERR("unknown parameter '%s' of type '%s'",
       param->name, edje_external_param_type_str(param->type));

   return EINA_FALSE;
}

static void *
external_photocam_params_parse(void *data EINA_UNUSED,
                               Evas_Object *obj EINA_UNUSED,
                               const Eina_List *params)
{
   Elm_Params_Photocam *mem;
   Edje_External_Param *param;
   const Eina_List *l;

   mem = calloc(1, sizeof(Elm_Params_Photocam));
   if (!mem)
     return NULL;

   EINA_LIST_FOREACH(params, l, param)
     {
        if (!strcmp(param->name, "file"))
          mem->file = eina_stringshare_add(param->s);
        else if (!strcmp(param->name, "zoom"))
          {
             mem->zoom = param->d;
             mem->zoom_exists = EINA_TRUE;
          }
        else if (!strcmp(param->name, "zoom mode"))
          mem->zoom_mode = eina_stringshare_add(param->s);
        else if (!strcmp(param->name, "paused"))
          {
             mem->paused = !!param->i;
             mem->paused_exists = EINA_TRUE;
          }
     }

   return mem;
}

static Evas_Object *external_photocam_content_get(void *data EINA_UNUSED,
                                                  const Evas_Object *obj EINA_UNUSED,
                                                  const char *content EINA_UNUSED)
{
   ERR("No content.");
   return NULL;
}

static void
external_photocam_params_free(void *params)
{
   Elm_Params_Photocam *mem = params;

   if (mem->file)
     eina_stringshare_del(mem->file);
   if (mem->zoom_mode)
     eina_stringshare_del(mem->zoom_mode);
   free(mem);
}

static Edje_External_Param_Info external_photocam_params[] = {
     DEFINE_EXTERNAL_COMMON_PARAMS,
     EDJE_EXTERNAL_PARAM_INFO_STRING("file"),
     EDJE_EXTERNAL_PARAM_INFO_DOUBLE("zoom"),
     EDJE_EXTERNAL_PARAM_INFO_CHOICE_FULL("zoom mode", "manual", choices),
     EDJE_EXTERNAL_PARAM_INFO_BOOL("paused"),
     EDJE_EXTERNAL_PARAM_INFO_SENTINEL
};

DEFINE_EXTERNAL_ICON_ADD(photocam, "photocam");
DEFINE_EXTERNAL_TYPE_SIMPLE(photocam, "Photocam");