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e_table.c

/*
 * vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
 */
#include "e.h"

typedef struct _E_Smart_Data E_Smart_Data;
typedef struct _E_Table_Item E_Table_Item;

struct _E_Smart_Data
{ 
   Evas_Coord       x, y, w, h;
   Evas_Object     *obj;
   Evas_Object     *clip;
   int              frozen;
   unsigned char    changed : 1;
   unsigned char    homogenous : 1;
   Evas_List       *items;
   struct {
      Evas_Coord    w, h;
   } min, max;
   struct {
      double        x, y;
   } align;
   struct {
      int           cols, rows;
   } size;
}; 

struct _E_Table_Item
{
   E_Smart_Data    *sd;
   int              col, row, colspan, rowspan;
   unsigned char    fill_w : 1;
   unsigned char    fill_h : 1;
   unsigned char    expand_w : 1;
   unsigned char    expand_h : 1;
   struct {
      Evas_Coord    w, h;
   } min, max;
   struct {
      double        x, y;
   } align;
   Evas_Object     *obj;
};

/* local subsystem functions */
static E_Table_Item *_e_table_smart_adopt(E_Smart_Data *sd, Evas_Object *obj);
static void        _e_table_smart_disown(Evas_Object *obj);
static void        _e_table_smart_item_del_hook(void *data, Evas *e, Evas_Object *obj, void *event_info);
static void        _e_table_smart_reconfigure(E_Smart_Data *sd);
static void        _e_table_smart_extents_calcuate(E_Smart_Data *sd);

static void _e_table_smart_init(void);
static void _e_table_smart_add(Evas_Object *obj);
static void _e_table_smart_del(Evas_Object *obj);
static void _e_table_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y);
static void _e_table_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h);
static void _e_table_smart_show(Evas_Object *obj);
static void _e_table_smart_hide(Evas_Object *obj);
static void _e_table_smart_color_set(Evas_Object *obj, int r, int g, int b, int a);
static void _e_table_smart_clip_set(Evas_Object *obj, Evas_Object *clip);
static void _e_table_smart_clip_unset(Evas_Object *obj);

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

/* externally accessible functions */
EAPI Evas_Object *
e_table_add(Evas *evas)
{
   _e_table_smart_init();
   return evas_object_smart_add(evas, _e_smart);
}

EAPI int
e_table_freeze(Evas_Object *obj)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   sd->frozen++;
   return sd->frozen;
}

EAPI int
e_table_thaw(Evas_Object *obj)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   sd->frozen--;
   if (sd->frozen <= 0) _e_table_smart_reconfigure(sd);
   return sd->frozen;
}

EAPI void
e_table_homogenous_set(Evas_Object *obj, int homogenous)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (sd->homogenous == homogenous) return;
   sd->homogenous = homogenous;
   sd->changed = 1;
   if (sd->frozen <= 0) _e_table_smart_reconfigure(sd);
}

EAPI void
e_table_pack(Evas_Object *obj, Evas_Object *child, int col, int row, int colspan, int rowspan)
{
   E_Smart_Data *sd;
   E_Table_Item *ti;
   
   sd = evas_object_smart_data_get(obj);
   _e_table_smart_adopt(sd, child);
   sd->items = evas_list_append(sd->items, child);
   ti = evas_object_data_get(child, "e_table_data");
   if (ti)
     {
      ti->col = col;
      ti->row = row;
      ti->colspan = colspan;
      ti->rowspan = rowspan;
      if (sd->size.cols < (col + colspan)) sd->size.cols = col + colspan;
      if (sd->size.rows < (row + rowspan)) sd->size.rows = row + rowspan;
     }
   sd->changed = 1;
   if (sd->frozen <= 0) _e_table_smart_reconfigure(sd);
}

EAPI void
e_table_pack_options_set(Evas_Object *obj, int fill_w, int fill_h, int expand_w, int expand_h, double align_x, double align_y, Evas_Coord min_w, Evas_Coord min_h, Evas_Coord max_w, Evas_Coord max_h)
{
   E_Table_Item *ti;
   
   ti = evas_object_data_get(obj, "e_table_data");
   if (!ti) return;
   ti->fill_w = fill_w;
   ti->fill_h = fill_h;
   ti->expand_w = expand_w;
   ti->expand_h = expand_h;
   ti->align.x = align_x;
   ti->align.y = align_y;
   ti->min.w = min_w;
   ti->min.h = min_h;
   ti->max.w = max_w;
   ti->max.h = max_h;
   ti->sd->changed = 1;
   if (ti->sd->frozen <= 0) _e_table_smart_reconfigure(ti->sd);
}

EAPI void
e_table_unpack(Evas_Object *obj)
{
   E_Table_Item *ti;
   E_Smart_Data *sd;
   
   ti = evas_object_data_get(obj, "e_table_data");
   if (!ti) return;
   sd = ti->sd;
   sd->items = evas_list_remove(sd->items, obj);
   _e_table_smart_disown(obj);
   sd->changed = 1;
   if (sd->frozen <= 0) _e_table_smart_reconfigure(sd);
}

EAPI void
e_table_col_row_size_get(Evas_Object *obj, int *cols, int *rows)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (sd->changed) _e_table_smart_extents_calcuate(sd);
   if (cols) *cols = sd->size.cols;
   if (rows) *rows = sd->size.rows;
}

EAPI void
e_table_min_size_get(Evas_Object *obj, Evas_Coord *minw, Evas_Coord *minh)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (sd->changed) _e_table_smart_extents_calcuate(sd);
   if (minw) *minw = sd->min.w;
   if (minh) *minh = sd->min.h;
}

EAPI void
e_table_max_size_get(Evas_Object *obj, Evas_Coord *maxw, Evas_Coord *maxh)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (sd->changed) _e_table_smart_extents_calcuate(sd);
   if (maxw) *maxw = sd->max.w;
   if (maxh) *maxh = sd->max.h;
}

EAPI void
e_table_align_get(Evas_Object *obj, double *ax, double *ay)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (ax) *ax = sd->align.x;
   if (ay) *ay = sd->align.y;
}

EAPI void
e_table_align_set(Evas_Object *obj, double ax, double ay)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if ((sd->align.x == ax) && (sd->align.y == ay)) return;
   sd->align.x = ax;
   sd->align.y = ay;
   sd->changed = 1;
   if (sd->frozen <= 0) _e_table_smart_reconfigure(sd);
}

/* local subsystem functions */
static E_Table_Item *
_e_table_smart_adopt(E_Smart_Data *sd, Evas_Object *obj)
{
   E_Table_Item *ti;
   
   ti = calloc(1, sizeof(E_Table_Item));
   if (!ti) return NULL;
   ti->sd = sd;
   ti->obj = obj;
   /* defaults */
   ti->col = 0;
   ti->row = 0;
   ti->colspan = 1;
   ti->rowspan = 1;
   ti->fill_w = 0;
   ti->fill_h = 0;
   ti->expand_w = 0;
   ti->expand_h = 0;
   ti->align.x = 0.5;
   ti->align.y = 0.5;
   ti->min.w = 0;
   ti->min.h = 0;
   ti->max.w = 0;
   ti->max.h = 0;
   evas_object_clip_set(obj, sd->clip);
   evas_object_stack_above(obj, sd->obj);
   evas_object_smart_member_add(obj, ti->sd->obj);
   evas_object_data_set(obj, "e_table_data", ti);
   evas_object_event_callback_add(obj, EVAS_CALLBACK_FREE,
                          _e_table_smart_item_del_hook, NULL);
   evas_object_stack_below(obj, sd->obj);
   if ((!evas_object_visible_get(sd->clip)) &&
       (evas_object_visible_get(sd->obj)))
     evas_object_show(sd->clip);
   return ti;
}

static void
_e_table_smart_disown(Evas_Object *obj)
{
   E_Table_Item *ti;
   
   ti = evas_object_data_get(obj, "e_table_data");
   if (!ti) return;
   if (!ti->sd->items)
     {
      if (evas_object_visible_get(ti->sd->clip))
        evas_object_hide(ti->sd->clip);
     }
   evas_object_event_callback_del(obj,
                          EVAS_CALLBACK_FREE,
                          _e_table_smart_item_del_hook);
   evas_object_smart_member_del(obj);
   evas_object_data_del(obj, "e_table_data");
   free(ti);
}

static void
_e_table_smart_item_del_hook(void *data, Evas *e, Evas_Object *obj, void *event_info)
{
   e_table_unpack(obj);
}

static void
_e_table_smart_reconfigure(E_Smart_Data *sd)
{
   Evas_Coord x, y, w, h, xx, yy;
   Evas_List *l;
   int minw, minh, expandw, expandh;

   if (!sd->changed) return;
   
   x = sd->x;
   y = sd->y;
   w = sd->w;
   h = sd->h;

   _e_table_smart_extents_calcuate(sd);
   
   minw = sd->min.w;
   minh = sd->min.h;
   expandw = 0;
   expandh = 0;
   if (w < minw)
     {
      x = x + ((w - minw) * (1.0 - sd->align.x));
      w = minw;
     }
   if (h < minh)
     {
      y = y + ((h - minh) * (1.0 - sd->align.y));
      h = minh;
     }
   for (l = sd->items; l; l = l->next)
     {
      E_Table_Item *ti;
      Evas_Object *obj;
      
      obj = l->data;
      ti = evas_object_data_get(obj, "e_table_data");
      if (ti->expand_w) expandw++;
      if (ti->expand_w) expandh++;
     }
   if (expandw == 0)
     {
      x += (w - minw) / 2;
      w = minw;
     }
   if (expandh == 0)
     {
      y += (h - minh) / 2;
      h = minh;
     }
   x = sd->x;
   y = sd->y;
   if (sd->homogenous)
     {
      for (l = sd->items; l; l = l->next)
        {
           E_Table_Item *ti;
           Evas_Object *obj;
           Evas_Coord ww, hh, ow, oh;
           
           obj = l->data;
           ti = evas_object_data_get(obj, "e_table_data");
           
           xx = x + ((ti->col) * (w / (Evas_Coord)sd->size.cols));
           yy = y + ((ti->row) * (h / (Evas_Coord)sd->size.rows));
           ww = ((w / (Evas_Coord)sd->size.cols) * (ti->colspan));
           hh = ((h / (Evas_Coord)sd->size.rows) * (ti->rowspan));
           ow = ti->min.w;
           if (ti->expand_w) ow = ww;
           if ((ti->max.w >= 0) && (ti->max.w < ow)) ow = ti->max.w;
           oh = ti->min.h;
           if (ti->expand_h) oh = hh;
           if ((ti->max.h >= 0) && (ti->max.h < oh)) oh = ti->max.h;
           evas_object_move(obj, 
                        xx + (Evas_Coord)(((double)(ww - ow)) * ti->align.x),
                        yy + (Evas_Coord)(((double)(hh - oh)) * ti->align.y));
           evas_object_resize(obj, ow, oh);
        }
     }
   else
     {
      int i, ex, tot, need, num, dif, left, nx;
      for (l = sd->items; l; l = l->next)
        {
           E_Table_Item *ti;
           Evas_Object *obj;
           
           obj = l->data;
           ti = evas_object_data_get(obj, "e_table_data");  
           if (sd->size.cols < (ti->col + ti->colspan))
             sd->size.cols = ti->col + ti->colspan;
           if (sd->size.rows < (ti->row + ti->rowspan))
             sd->size.rows = ti->row + ti->rowspan;
        }
      if ((sd->size.cols > 0) && (sd->size.rows > 0))
        {
           int *cols, *rows, *colsx, *rowsx;
           
           cols = calloc(sd->size.cols, sizeof(int));
           rows = calloc(sd->size.rows, sizeof(int));
           colsx = calloc(sd->size.cols, sizeof(int));
           rowsx = calloc(sd->size.rows, sizeof(int));
           
           for (l = sd->items; l; l = l->next)
             {
              E_Table_Item *ti;
              Evas_Object *obj;

              obj = l->data;
              ti = evas_object_data_get(obj, "e_table_data");
              for (i = ti->col; i < (ti->col + ti->colspan); i++)
                colsx[i] |= ti->expand_w;
              for (i = ti->row; i < (ti->row + ti->rowspan); i++)
                rowsx[i] |= ti->expand_h;
             }
           
           for (l = sd->items; l; l = l->next)
             {
              E_Table_Item *ti;
              Evas_Object *obj;
              
              obj = l->data;
              ti = evas_object_data_get(obj, "e_table_data");
              
              /* handle horizontal */
              ex = 0;
              tot = 0;
              num = ti->colspan;
              for (i = ti->col; i < (ti->col + num); i++)
                {
                   if (colsx[i]) ex++;
                   tot += cols[i];
                }
              need = ti->min.w;
              if (tot < need)
                {
                   dif = need - tot;
                   left = dif;
                   if (ex == 0)
                   {
                      nx = num;
                      for (i = ti->col; i < (ti->col + num); i++)
                        {
                         if (nx > 1)
                           {
                              cols[i] += dif / num;
                              left -= dif / num;
                           }
                         else
                           {
                              cols[i] += left;
                              left = 0;
                           }
                         nx--;
                        }
                   }
                   else
                   {
                      nx = ex;
                      for (i = ti->col; i < (ti->col + num); i++)
                        {
                         if (colsx[i])
                           {
                              if (nx > 1)
                              {
                                 cols[i] += dif / ex;
                                 left -= dif / ex;
                              }
                              else
                              {
                                 cols[i] += left;
                                 left = 0;
                              }
                              nx--;
                           }
                        }
                   }
                }
              
              /* handle vertical */
              ex = 0;
              tot = 0;
              num = ti->rowspan;
              for (i = ti->row; i < (ti->row + num); i++)
                {
                   if (rowsx[i]) ex++;
                   tot += rows[i];
                }
              need = ti->min.h;
              if (tot < need)
                {
                   dif = need - tot;
                   left = dif;
                   if (ex == 0)
                   {
                      nx = num;
                      for (i = ti->row; i < (ti->row + num); i++)
                        {
                         if (nx > 1)
                           {
                              rows[i] += dif / num;
                              left -= dif / num;
                           }
                         else
                           {
                              rows[i] += left;
                              left = 0;
                           }
                         nx--;
                        }
                   }
                   else
                   {
                      nx = ex;
                      for (i = ti->row; i < (ti->row + num); i++)
                        {
                         if (rowsx[i])
                           {
                              if (nx > 1)
                              {
                                 rows[i] += dif / ex;
                                 left -= dif / ex;
                              }
                              else
                              {
                                 rows[i] += left;
                                 left = 0;
                              }
                              nx--;
                           }
                        }
                   }
                }
             }
           
           ex = 0;
           for (i = 0; i < sd->size.cols; i++) { if (colsx[i]) ex++; }
           tot = 0;
           for (i = 0; i < sd->size.cols; i++) tot += cols[i];
           dif = w - tot;
           if ((ex > 0) && (dif > 0))
             {
              int exl;
              
              left = dif;
              exl = ex;
              for (i = 0; i < sd->size.cols; i++)
                {
                   if (colsx[i])
                   {
                      if (exl == 1)
                        {
                         cols[i] += left;
                         exl--;
                         left = 0;
                        }
                      else
                        {                  
                         cols[i] += dif / ex;
                         exl--;
                         left -= dif / ex;
                        }
                   }
                }
             }
           
           ex = 0;
           for (i = 0; i < sd->size.rows; i++) { if (rowsx[i]) ex++; }
           tot = 0;
           for (i = 0; i < sd->size.rows; i++) tot += rows[i];
           dif = h - tot;
           if ((ex > 0) && (dif > 0))
             {
              int exl;
              
              left = dif;
              exl = ex;
              for (i = 0; i < sd->size.rows; i++)
                {
                   if (rowsx[i])
                   {
                      if (exl == 1)
                        {
                         rows[i] += left;
                         exl--;
                         left = 0;
                        }
                      else
                        {                  
                         rows[i] += dif / ex;
                         exl--;
                         left -= dif / ex;
                        }
                   }
                }
             }
           
           for (l = sd->items; l; l = l->next)
             {
              E_Table_Item *ti;
              Evas_Object *obj;
              Evas_Coord ww, hh, ow, oh, i;
              
              obj = l->data;
              ti = evas_object_data_get(obj, "e_table_data");
              
              xx = x;
              for (i = 0; i < ti->col; i++) xx += cols[i];
              ww = 0;
              for (i = ti->col; i < (ti->col + ti->colspan); i++) ww += cols[i];
              yy = y;
              for (i = 0; i < ti->row; i++) yy += rows[i];
              hh = 0;
              for (i = ti->row; i < (ti->row + ti->rowspan); i++) hh += rows[i];

              ow = ti->min.w;
              if (ti->fill_w) ow = ww;
              if ((ti->max.w >= 0) && (ti->max.w < ow)) ow = ti->max.w;
              oh = ti->min.h;
              if (ti->fill_h) oh = hh;
              if ((ti->max.h >= 0) && (ti->max.h < oh)) oh = ti->max.h;
              evas_object_move(obj, 
                           xx + (Evas_Coord)(((double)(ww - ow)) * ti->align.x),
                           yy + (Evas_Coord)(((double)(hh - oh)) * ti->align.y));
              evas_object_resize(obj, ow, oh);
             }
           free(rows);
           free(cols);
           free(rowsx);
           free(colsx);
        }
     }
   sd->changed = 0;
}

static void
_e_table_smart_extents_calcuate(E_Smart_Data *sd)
{
   Evas_List *l;
   int minw, minh;

   sd->max.w = -1; /* max < 0 == unlimited */
   sd->max.h = -1;
   sd->size.cols = 0;
   sd->size.rows = 0;
   
   minw = 0;
   minh = 0;
   if (sd->homogenous)
     {
      for (l = sd->items; l; l = l->next)
        {
           E_Table_Item *ti;
           Evas_Object *obj;
           int mw, mh;
           
           obj = l->data;
           ti = evas_object_data_get(obj, "e_table_data");  
           if (sd->size.cols < (ti->col + ti->colspan))
             sd->size.cols = ti->col + ti->colspan;
           if (sd->size.rows < (ti->row + ti->rowspan))
             sd->size.rows = ti->row + ti->rowspan;
           mw = (ti->min.w + (ti->colspan - 1)) / ti->colspan;
           mh = (ti->min.h + (ti->rowspan - 1)) / ti->rowspan;
           if (minw < mw) minw = mw;
           if (minh < mh) minh = mh;
        }
      minw *= sd->size.cols;
      minh *= sd->size.rows;
     }
   else
     {
      int i, ex, tot, need, num, dif, left, nx;
      for (l = sd->items; l; l = l->next)
        {
           E_Table_Item *ti;
           Evas_Object *obj;
           
           obj = l->data;
           ti = evas_object_data_get(obj, "e_table_data");  
           if (sd->size.cols < (ti->col + ti->colspan))
             sd->size.cols = ti->col + ti->colspan;
           if (sd->size.rows < (ti->row + ti->rowspan))
             sd->size.rows = ti->row + ti->rowspan;
        }
      if ((sd->size.cols > 0) && (sd->size.rows > 0))
        {
           int *cols, *rows, *colsx, *rowsx;
           
           cols = calloc(sd->size.cols, sizeof(int));
           rows = calloc(sd->size.rows, sizeof(int));
           colsx = calloc(sd->size.cols, sizeof(int));
           rowsx = calloc(sd->size.rows, sizeof(int));
           
           for (l = sd->items; l; l = l->next)
             {
              E_Table_Item *ti;
              Evas_Object *obj;

              obj = l->data;
              ti = evas_object_data_get(obj, "e_table_data");
              for (i = ti->col; i < (ti->col + ti->colspan); i++)
                colsx[i] |= ti->expand_w;
              for (i = ti->row; i < (ti->row + ti->rowspan); i++)
                rowsx[i] |= ti->expand_h;
             }
           
           for (l = sd->items; l; l = l->next)
             {
              E_Table_Item *ti;
              Evas_Object *obj;
              
              obj = l->data;
              ti = evas_object_data_get(obj, "e_table_data");
              
              /* handle horizontal */
              ex = 0;
              tot = 0;
              num = ti->colspan;
              for (i = ti->col; i < (ti->col + num); i++)
                {
                   if (colsx[i]) ex++;
                   tot += cols[i];
                }
              need = ti->min.w;
              if (tot < need)
                {
                   dif = need - tot;
                   left = dif;
                   if (ex == 0)
                   {
                      nx = num;
                      for (i = ti->col; i < (ti->col + num); i++)
                        {
                         if (nx > 1)
                           {
                              cols[i] += dif / num;
                              left -= dif / num;
                           }
                         else
                           {
                              cols[i] += left;
                              left = 0;
                           }
                         nx--;
                        }
                   }
                   else
                   {
                      nx = ex;
                      for (i = ti->col; i < (ti->col + num); i++)
                        {
                         if (colsx[i])
                           {
                              if (nx > 1)
                              {
                                 cols[i] += dif / ex;
                                 left -= dif / ex;
                              }
                              else
                              {
                                 cols[i] += left;
                                 left = 0;
                              }
                              nx--;
                           }
                        }
                   }
                }
              
              /* handle vertical */
              ex = 0;
              tot = 0;
              num = ti->rowspan;
              for (i = ti->row; i < (ti->row + num); i++)
                {
                   if (rowsx[i]) ex++;
                   tot += rows[i];
                }
              need = ti->min.h;
              if (tot < need)
                {
                   dif = need - tot;
                   left = dif;
                   if (ex == 0)
                   {
                      nx = num;
                      for (i = ti->row; i < (ti->row + num); i++)
                        {
                         if (nx > 1)
                           {
                              rows[i] += dif / num;
                              left -= dif / num;
                           }
                         else
                           {
                              rows[i] += left;
                              left = 0;
                           }
                         nx--;
                        }
                   }
                   else
                   {
                      nx = ex;
                      for (i = ti->row; i < (ti->row + num); i++)
                        {
                         if (rowsx[i])
                           {
                              if (nx > 1)
                              {
                                 rows[i] += dif / ex;
                                 left -= dif / ex;
                              }
                              else
                              {
                                 rows[i] += left;
                                 left = 0;
                              }
                              nx--;
                           }
                        }
                   }
                }
             }
           for (i = 0; i < sd->size.cols; i++) minw += cols[i];
           for (i = 0; i < sd->size.rows; i++) minh += rows[i];
           free(rows);
           free(cols);
           free(rowsx);
           free(colsx);
        }
     }
   sd->min.w = minw;
   sd->min.h = minh;
}

static void
_e_table_smart_init(void)
{
   if (_e_smart) return;
     {
      static const Evas_Smart_Class sc =
        {
           "e_table",
             EVAS_SMART_CLASS_VERSION,
             _e_table_smart_add,
             _e_table_smart_del,
             _e_table_smart_move,
             _e_table_smart_resize,
             _e_table_smart_show,
             _e_table_smart_hide,
             _e_table_smart_color_set,
             _e_table_smart_clip_set,
             _e_table_smart_clip_unset,
             NULL
        };
      _e_smart = evas_smart_class_new(&sc);
     }
}

static void
_e_table_smart_add(Evas_Object *obj)
{
   E_Smart_Data *sd;
   
   sd = calloc(1, sizeof(E_Smart_Data));
   if (!sd) return;
   sd->obj = obj;
   sd->x = 0;
   sd->y = 0;
   sd->w = 0;
   sd->h = 0;
   sd->clip = evas_object_rectangle_add(evas_object_evas_get(obj));
   evas_object_smart_member_add(sd->clip, obj);
   evas_object_move(sd->clip, -100002, -100002);
   evas_object_resize(sd->clip, 200004, 200004);
   evas_object_color_set(sd->clip, 255, 255, 255, 255);
   evas_object_smart_data_set(obj, sd);
}
   
static void
_e_table_smart_del(Evas_Object *obj)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (!sd) return;
   e_table_freeze(obj);
   while (sd->items)
     {
      Evas_Object *child;
      
      child = sd->items->data;
      e_table_unpack(child);
     }
   e_table_thaw(obj);
   evas_object_del(sd->clip);
   free(sd);
}

static void
_e_table_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (!sd) return;
   if ((x == sd->x) && (y == sd->y)) return;
   if ((x == sd->x) && (y == sd->y)) return;
     {
      Evas_List *l;
      Evas_Coord dx, dy;
      
      dx = x - sd->x;
      dy = y - sd->y;
      for (l = sd->items; l; l = l->next)
        {
           Evas_Coord ox, oy;
           
           evas_object_geometry_get(l->data, &ox, &oy, NULL, NULL);
           evas_object_move(l->data, ox + dx, oy + dy);
        }
     }
   sd->x = x;
   sd->y = y;
}

static void
_e_table_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (!sd) return;
   if ((w == sd->w) && (h == sd->h)) return;
   sd->w = w;
   sd->h = h;
   sd->changed = 1;
   _e_table_smart_reconfigure(sd);
}

static void
_e_table_smart_show(Evas_Object *obj)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (!sd) return;
   if (sd->items) evas_object_show(sd->clip);
}

static void
_e_table_smart_hide(Evas_Object *obj)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (!sd) return;
   evas_object_hide(sd->clip);
}

static void
_e_table_smart_color_set(Evas_Object *obj, int r, int g, int b, int a)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (!sd) return;   
   evas_object_color_set(sd->clip, r, g, b, a);
}

static void
_e_table_smart_clip_set(Evas_Object *obj, Evas_Object *clip)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (!sd) return;
   evas_object_clip_set(sd->clip, clip);
}

static void
_e_table_smart_clip_unset(Evas_Object *obj)
{
   E_Smart_Data *sd;
   
   sd = evas_object_smart_data_get(obj);
   if (!sd) return;
   evas_object_clip_unset(sd->clip);
}  

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