src/lib/edje_box_layout.c

   1 #include "edje_private.h"
   2
   3 typedef struct _Edje_Transition_Animation_Data Edje_Transition_Animation_Data;
   4 struct _Edje_Transition_Animation_Data
   5 {
   6    Evas_Object *obj;
   7    struct
   8    {
   9       Evas_Coord x, y, w, h;
  10    } start, end;
  11 };
  12
  13 struct _Edje_Part_Box_Animation
  14 {
  15    struct
  16    {
  17       Evas_Object_Box_Layout layout;
  18       void *data;
  19       void(*free_data)(void *data);
  20       Edje_Alignment align;
  21       Evas_Point padding;
  22    } start, end;
  23    Eina_List *objs;
  24    Eina_Bool recalculate:1;
  25    Evas_Object *box;
  26    double progress;
  27    double start_progress;
  28    int box_start_w, box_start_h;
  29 };
  30
  31 static void
  32 _edje_box_layout_find_all(const char *name, const char *name_alt, Evas_Object_Box_Layout *cb, void **data, void (**free_data)(void *data))
  33 {
  34    if (!_edje_box_layout_find(name, cb, data, free_data))
  35      {
  36         if ((!name_alt) ||
  37             (!_edje_box_layout_find(name_alt, cb, data, free_data)))
  38           {
  39              ERR("box layout '%s' (fallback '%s') not available, using horizontal.",
  40                  name, name_alt);
  41              *cb = evas_object_box_layout_horizontal;
  42              *free_data = NULL;
  43              *data = NULL;
  44           }
  45      }
  46 }
  47
  48 static void
  49 _edje_box_layout_calculate_coords(Evas_Object *obj, Evas_Object_Box_Data *priv, Edje_Part_Box_Animation *anim)
  50 {
  51    Eina_List *l;
  52    Edje_Transition_Animation_Data *tad;
  53    Evas_Coord x, y;
  54
  55    evas_object_geometry_get(obj, &x, &y, &anim->box_start_w, &anim->box_start_h);
  56    EINA_LIST_FOREACH(anim->objs, l, tad)
  57      {
  58         evas_object_geometry_get(tad->obj, &tad->start.x, &tad->start.y,
  59               &tad->start.w, &tad->start.h);
  60         tad->start.x = tad->start.x - x;
  61         tad->start.y = tad->start.y - y;
  62      }
  63    evas_object_box_padding_set(obj, anim->end.padding.x, anim->end.padding.y);
  64    evas_object_box_align_set(obj, TO_DOUBLE(anim->end.align.x), TO_DOUBLE(anim->end.align.y));
  65    anim->end.layout(obj, priv, anim->end.data);
  66    EINA_LIST_FOREACH(anim->objs, l, tad)
  67      {
  68         evas_object_geometry_get(tad->obj, &tad->end.x, &tad->end.y,
  69               &tad->end.w, &tad->end.h);
  70         tad->end.x = tad->end.x - x;
  71         tad->end.y = tad->end.y - y;
  72      }
  73 }
  74
  75 static void
  76 _edje_box_layout_exec(Evas_Object *obj, Edje_Part_Box_Animation *anim)
  77 {
  78    Eina_List *l;
  79    Edje_Transition_Animation_Data *tad;
  80    Evas_Coord x, y, w, h;
  81    Evas_Coord cur_x, cur_y, cur_w, cur_h;
  82    double progress;
  83
  84    evas_object_geometry_get(obj, &x, &y, &w, &h);
  85    progress = (anim->progress - anim->start_progress) / (1 - anim->start_progress);
  86
  87    EINA_LIST_FOREACH(anim->objs, l, tad)
  88      {
  89         cur_x = x + (tad->start.x + ((tad->end.x - tad->start.x) * progress)) * (w / (double)anim->box_start_w);
  90         cur_y = y + (tad->start.y + ((tad->end.y - tad->start.y) * progress)) * (h / (double)anim->box_start_h);
  91         cur_w = (w / (double)anim->box_start_w) * (tad->start.w + ((tad->end.w - tad->start.w) * progress));
  92         cur_h = (h / (double)anim->box_start_h) * (tad->start.h + ((tad->end.h - tad->start.h) * progress));
  93         evas_object_move(tad->obj, cur_x, cur_y);
  94         evas_object_resize(tad->obj, cur_w, cur_h);
  95      }
  96 }
  97
  98 static void
  99 _edje_box_layout(Evas_Object *obj, Evas_Object_Box_Data *priv, void *data)
 100 {
 101    Edje_Part_Box_Animation *anim = data;
 102    if (anim->progress < 0.01)
 103      {
 104         if (anim->start.layout)
 105           {
 106              evas_object_box_padding_set(obj, anim->start.padding.x, anim->start.padding.y);
 107              evas_object_box_align_set(obj, TO_DOUBLE(anim->start.align.x), TO_DOUBLE(anim->start.align.y));
 108              anim->start.layout(obj, priv, anim->start.data);
 109           }
 110         return;
 111      }
 112
 113    if (anim->recalculate)
 114      {
 115         _edje_box_layout_calculate_coords(obj, priv, anim);
 116         anim->start_progress = anim->progress;
 117         anim->recalculate = EINA_FALSE;
 118      }
 119
 120    if ((anim->progress > 0) && (anim->start_progress < 1))
 121       _edje_box_layout_exec(obj, anim);
 122 }
 123
 124 void
 125 _edje_box_layout_free_data(void *data)
 126 {
 127    Edje_Transition_Animation_Data *tad;
 128    Edje_Part_Box_Animation *anim = data;
 129    if (anim->start.free_data && anim->start.data)
 130       anim->start.free_data(anim->start.data);
 131    if (anim->end.free_data && anim->end.data)
 132       anim->end.free_data(anim->end.data);
 133    EINA_LIST_FREE(anim->objs, tad)
 134       free(tad);
 135    free(data);
 136 }
 137
 138 Edje_Part_Box_Animation *
 139 _edje_box_layout_anim_new(Evas_Object *box)
 140 {
 141    Edje_Part_Box_Animation *anim = calloc(1, sizeof(Edje_Part_Box_Animation));
 142    if (!anim)
 143       return NULL;
 144
 145    anim->box = box;
 146    evas_object_box_layout_set(box, _edje_box_layout, anim, NULL);
 147
 148    return anim;
 149 }
 150
 151 void
 152 _edje_box_recalc_apply(Edje *ed __UNUSED__, Edje_Real_Part *ep, Edje_Calc_Params *p3 __UNUSED__, Edje_Part_Description_Box *chosen_desc)
 153 {
 154    Evas_Object_Box_Data *priv;
 155 #if 0
 156    int min_w, min_h;
 157 #endif
 158    if ((ep->param2) && (ep->description_pos != ZERO))
 159      {
 160         Edje_Part_Description_Box *param2_desc = (Edje_Part_Description_Box *)ep->param2->description;
 161         if (ep->anim->end.layout == NULL)
 162           {
 163              _edje_box_layout_find_all(param2_desc->box.layout, param2_desc->box.alt_layout, &ep->anim->end.layout, &ep->anim->end.data, &ep->anim->end.free_data);
 164              ep->anim->end.padding.x = param2_desc->box.padding.x;
 165              ep->anim->end.padding.y = param2_desc->box.padding.y;
 166              ep->anim->end.align.x = param2_desc->box.align.x;
 167              ep->anim->end.align.y = param2_desc->box.align.y;
 168
 169              priv = evas_object_smart_data_get(ep->object);
 170              if (priv == NULL)
 171                 return;
 172
 173              evas_object_box_padding_set(ep->object, ep->anim->start.padding.x, ep->anim->start.padding.y);
 174              evas_object_box_align_set(ep->object, TO_DOUBLE(ep->anim->start.align.x), TO_DOUBLE(ep->anim->start.align.y));
 175              ep->anim->start.layout(ep->object, priv, ep->anim->start.data);
 176              _edje_box_layout_calculate_coords(ep->object, priv, ep->anim);
 177              ep->anim->start_progress = 0.0;
 178           }
 179         evas_object_smart_changed(ep->object);
 180      }
 181    else
 182      {
 183         ep->anim->end.layout = NULL;
 184      }
 185
 186    if (ep->description_pos < 0.01 || !ep->anim->start.layout)
 187      {
 188         _edje_box_layout_find_all(chosen_desc->box.layout, chosen_desc->box.alt_layout, &ep->anim->start.layout, &ep->anim->start.data, &ep->anim->start.free_data);
 189         ep->anim->start.padding.x = chosen_desc->box.padding.x;
 190         ep->anim->start.padding.y = chosen_desc->box.padding.y;
 191         ep->anim->start.align.x = chosen_desc->box.align.x;
 192         ep->anim->start.align.y = chosen_desc->box.align.y;
 193         evas_object_smart_changed(ep->object);
 194      }
 195
 196    ep->anim->progress = ep->description_pos;
 197
 198    if (evas_object_smart_need_recalculate_get(ep->object))
 199      {
 200         evas_object_smart_need_recalculate_set(ep->object, 0);
 201         evas_object_smart_calculate(ep->object);
 202      }
 203 #if 0 /* Why the hell do we affect part size after resize ??? */
 204    evas_object_size_hint_min_get(ep->object, &min_w, &min_h);
 205    if (chosen_desc->box.min.h && (p3->w < min_w))
 206      p3->w = min_w;
 207    if (chosen_desc->box.min.v && (p3->h < min_h))
 208      p3->h = min_h;
 209 #endif
 210 }
 211
 212 Eina_Bool
 213 _edje_box_layout_add_child(Edje_Real_Part *rp, Evas_Object *child_obj)
 214 {
 215    Edje_Transition_Animation_Data *tad;
 216    tad = calloc(1, sizeof(Edje_Transition_Animation_Data));
 217    if (!tad)
 218       return EINA_FALSE;
 219    tad->obj = child_obj;
 220    rp->anim->objs = eina_list_append(rp->anim->objs, tad);
 221    rp->anim->recalculate = EINA_TRUE;
 222    return EINA_TRUE;
 223 }
 224
 225 void
 226 _edje_box_layout_remove_child(Edje_Real_Part *rp, Evas_Object *child_obj)
 227 {
 228    Eina_List *l;
 229    Edje_Transition_Animation_Data *tad;
 230
 231    EINA_LIST_FOREACH(rp->anim->objs, l, tad)
 232      {
 233         if (tad->obj == child_obj)
 234           {
 235              free(eina_list_data_get(l));
 236              rp->anim->objs = eina_list_remove_list(rp->anim->objs, l);
 237              rp->anim->recalculate = EINA_TRUE;
 238              break;
 239           }
 240      }
 241    rp->anim->recalculate = EINA_TRUE;
 242 }