forked from enlightenment/efl
500 lines
12 KiB
C
500 lines
12 KiB
C
#include "evas_common_private.h"
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#include "evas_private.h"
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#include <errno.h>
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#define MY_CLASS EVAS_GRID_CLASS
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typedef struct _Evas_Grid_Data Evas_Grid_Data;
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typedef struct _Evas_Object_Grid_Option Evas_Object_Grid_Option;
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typedef struct _Evas_Object_Grid_Iterator Evas_Object_Grid_Iterator;
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typedef struct _Evas_Object_Grid_Accessor Evas_Object_Grid_Accessor;
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struct _Evas_Object_Grid_Option
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{
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Evas_Object *obj;
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Eina_List *l;
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int x, y, w, h;
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};
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struct _Evas_Grid_Data
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{
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Evas_Object_Smart_Clipped_Data base;
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Eina_List *children;
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struct {
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int w, h;
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} size;
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Eina_Bool is_mirrored : 1;
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};
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struct _Evas_Object_Grid_Iterator
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{
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Eina_Iterator iterator;
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Eina_Iterator *real_iterator;
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const Evas_Object *grid;
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};
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struct _Evas_Object_Grid_Accessor
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{
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Eina_Accessor accessor;
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Eina_Accessor *real_accessor;
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const Evas_Object *grid;
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};
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#define EVAS_OBJECT_GRID_DATA_GET(o, ptr) \
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Evas_Grid_Data *ptr = efl_data_scope_get(o, MY_CLASS)
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#define EVAS_OBJECT_GRID_DATA_GET_OR_RETURN(o, ptr) \
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EVAS_OBJECT_GRID_DATA_GET(o, ptr); \
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if (!ptr) \
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{ \
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CRI("no widget data for object %p (%s)", \
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o, evas_object_type_get(o)); \
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return; \
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}
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#define EVAS_OBJECT_GRID_DATA_GET_OR_RETURN_VAL(o, ptr, val) \
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EVAS_OBJECT_GRID_DATA_GET(o, ptr); \
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if (!ptr) \
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{ \
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CRI("No widget data for object %p (%s)", \
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o, evas_object_type_get(o)); \
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return val; \
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}
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static const char EVAS_OBJECT_GRID_OPTION_KEY[] = "|EvGd";
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static Eina_Bool
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_evas_object_grid_iterator_next(Evas_Object_Grid_Iterator *it, void **data)
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{
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Evas_Object_Grid_Option *opt;
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if (!eina_iterator_next(it->real_iterator, (void **)&opt))
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return EINA_FALSE;
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if (data) *data = opt->obj;
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return EINA_TRUE;
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}
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static Evas_Object *
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_evas_object_grid_iterator_get_container(Evas_Object_Grid_Iterator *it)
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{
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return (Evas_Object *)it->grid;
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}
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static void
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_evas_object_grid_iterator_free(Evas_Object_Grid_Iterator *it)
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{
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eina_iterator_free(it->real_iterator);
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free(it);
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}
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static Eina_Bool
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_evas_object_grid_accessor_get_at(Evas_Object_Grid_Accessor *it, unsigned int idx, void **data)
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{
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Evas_Object_Grid_Option *opt = NULL;
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if (!eina_accessor_data_get(it->real_accessor, idx, (void **)&opt))
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return EINA_FALSE;
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if (data) *data = opt->obj;
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return EINA_TRUE;
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}
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static Evas_Object *
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_evas_object_grid_accessor_get_container(Evas_Object_Grid_Accessor *it)
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{
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return (Evas_Object *)it->grid;
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}
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static void
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_evas_object_grid_accessor_free(Evas_Object_Grid_Accessor *it)
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{
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eina_accessor_free(it->real_accessor);
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free(it);
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}
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static Evas_Object_Grid_Option *
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_evas_object_grid_option_get(Evas_Object *o)
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{
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return evas_object_data_get(o, EVAS_OBJECT_GRID_OPTION_KEY);
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}
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static void
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_evas_object_grid_option_set(Evas_Object *o, const Evas_Object_Grid_Option *opt)
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{
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evas_object_data_set(o, EVAS_OBJECT_GRID_OPTION_KEY, opt);
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}
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static Evas_Object_Grid_Option *
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_evas_object_grid_option_del(Evas_Object *o)
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{
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return evas_object_data_del(o, EVAS_OBJECT_GRID_OPTION_KEY);
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}
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static void
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_on_child_del(void *data, Evas *evas EINA_UNUSED, Evas_Object *child, void *einfo EINA_UNUSED)
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{
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Evas_Object *grid = data;
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evas_object_grid_unpack(grid, child);
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}
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static void
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_evas_object_grid_child_connect(Evas_Object *o, Evas_Object *child)
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{
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evas_object_event_callback_add
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(child, EVAS_CALLBACK_DEL, _on_child_del, o);
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}
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static void
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_evas_object_grid_child_disconnect(Evas_Object *o, Evas_Object *child)
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{
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evas_object_event_callback_del_full
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(child, EVAS_CALLBACK_DEL, _on_child_del, o);
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}
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EVAS_SMART_SUBCLASS_NEW("Evas_Object_Grid", _evas_object_grid,
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Evas_Smart_Class, Evas_Smart_Class,
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evas_object_smart_clipped_class_get, NULL)
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static void
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_evas_object_grid_smart_add(Evas_Object *o)
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{
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Evas_Object_Smart_Clipped_Data *base;
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Evas_Grid_Data *priv;
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// Grid is an ugly mix of legacy & eo...
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base = evas_object_smart_data_get(o);
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priv = efl_data_scope_get(o, MY_CLASS);
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priv->base = *base;
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evas_object_smart_data_set(o, priv);
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priv->size.w = 100;
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priv->size.h = 100;
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}
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static void
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_evas_object_grid_smart_del(Evas_Object *o)
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{
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EVAS_OBJECT_GRID_DATA_GET(o, priv);
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Eina_List *l;
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l = priv->children;
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while (l)
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{
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Evas_Object_Grid_Option *opt = l->data;
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_evas_object_grid_child_disconnect(o, opt->obj);
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_evas_object_grid_option_del(opt->obj);
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free(opt);
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l = eina_list_remove_list(l, l);
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}
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}
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static void
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_evas_object_grid_smart_resize(Evas_Object *o, Evas_Coord w, Evas_Coord h)
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{
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Evas_Coord ow, oh;
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evas_object_geometry_get(o, NULL, NULL, &ow, &oh);
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if ((ow == w) && (oh == h)) return;
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evas_object_smart_changed(o);
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}
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static void
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_evas_object_grid_smart_calculate(Evas_Object *o)
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{
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Eina_List *l;
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Evas_Object_Grid_Option *opt;
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Evas *e;
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Evas_Coord x, y, w, h;
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long long xl, yl, wl, hl, vwl, vhl;
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Eina_Bool mirror;
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EVAS_OBJECT_GRID_DATA_GET_OR_RETURN(o, priv);
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if (!priv->children) return;
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e = evas_object_evas_get(o);
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evas_event_freeze(e);
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evas_object_geometry_get(o, &x, &y, &w, &h);
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xl = x;
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yl = y;
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wl = w;
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hl = h;
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mirror = priv->is_mirrored;
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vwl = priv->size.w;
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vhl = priv->size.h;
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EINA_LIST_FOREACH(priv->children, l, opt)
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{
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long long x1, y1, x2, y2;
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if (vwl > 0)
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{
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if (!mirror)
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{
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x1 = xl + ((wl * (long long)opt->x) / vwl);
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x2 = xl + ((wl * (long long)(opt->x + opt->w)) / vwl);
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}
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else
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{
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x1 = xl + ((wl * (vwl - (long long)(opt->x + opt->w))) / vwl);
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x2 = xl + ((wl * (vwl - (long long)opt->x)) / vwl);
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}
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}
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else
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{
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x1 = xl;
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x2 = xl;
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}
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if (vhl > 0)
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{
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y1 = yl + ((hl * (long long)opt->y) / vhl);
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y2 = yl + ((hl * (long long)(opt->y + opt->h)) / vhl);
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}
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else
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{
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y1 = yl;
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y2 = yl;
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}
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evas_object_move(opt->obj, x1, y1);
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evas_object_resize(opt->obj, x2 - x1, y2 - y1);
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}
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evas_event_thaw(e);
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}
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static void
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_evas_object_grid_smart_set_user(Evas_Smart_Class *sc)
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{
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sc->add = _evas_object_grid_smart_add;
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sc->del = _evas_object_grid_smart_del;
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sc->resize = _evas_object_grid_smart_resize;
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sc->calculate = _evas_object_grid_smart_calculate;
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}
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EAPI Evas_Object *
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evas_object_grid_add(Evas *evas)
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{
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MAGIC_CHECK(evas, Evas, MAGIC_EVAS);
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return NULL;
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MAGIC_CHECK_END();
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return efl_add(MY_CLASS, evas, efl_canvas_object_legacy_ctor(efl_added));
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}
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EOLIAN static Eo *
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_evas_grid_efl_object_constructor(Eo *obj, Evas_Grid_Data *class_data EINA_UNUSED)
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{
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efl_canvas_group_clipped_set(obj, EINA_TRUE);
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obj = efl_constructor(efl_super(obj, MY_CLASS));
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evas_object_smart_attach(obj, _evas_object_grid_smart_class_new());
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return obj;
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}
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EOLIAN static Evas_Object*
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_evas_grid_add_to(Eo *parent, Evas_Grid_Data *_pd EINA_UNUSED)
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{
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Evas *evas;
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Evas_Object *ret;
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evas = evas_object_evas_get(parent);
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ret = evas_object_grid_add(evas);
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evas_object_smart_member_add(ret, parent);
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return ret;
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}
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EOLIAN static void
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_evas_grid_size_set(Eo *o, Evas_Grid_Data *priv, int w, int h)
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{
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if ((priv->size.w == w) && (priv->size.h == h)) return;
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priv->size.w = w;
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priv->size.h = h;
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evas_object_smart_changed(o);
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}
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EOLIAN static void
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_evas_grid_size_get(Eo *o EINA_UNUSED, Evas_Grid_Data *priv, int *w, int *h)
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{
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if (w) *w = priv->size.w;
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if (h) *h = priv->size.h;
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}
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EOLIAN static Eina_Bool
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_evas_grid_pack(Eo *o, Evas_Grid_Data *priv, Evas_Object *child, int x, int y, int w, int h)
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{
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Evas_Object_Grid_Option *opt;
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Eina_Bool newobj = EINA_FALSE;
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opt = _evas_object_grid_option_get(child);
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if (!opt)
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{
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opt = malloc(sizeof(*opt));
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if (!opt)
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{
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ERR("could not allocate grid option data.");
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return EINA_FALSE;
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}
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newobj = EINA_TRUE;
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}
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opt->x = x;
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opt->y = y;
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opt->w = w;
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opt->h = h;
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if (newobj)
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{
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opt->obj = child;
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priv->children = eina_list_append(priv->children, opt);
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opt->l = eina_list_last(priv->children);
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_evas_object_grid_option_set(child, opt);
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evas_object_smart_member_add(child, o);
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_evas_object_grid_child_connect(o, child);
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}
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// FIXME: we could keep a changed list
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evas_object_smart_changed(o);
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return EINA_TRUE;
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}
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static void
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_evas_object_grid_remove_opt(Evas_Grid_Data *priv, Evas_Object_Grid_Option *opt)
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{
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priv->children = eina_list_remove_list(priv->children, opt->l);
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opt->l = NULL;
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}
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EOLIAN static Eina_Bool
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_evas_grid_unpack(Eo *o, Evas_Grid_Data *priv, Evas_Object *child)
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{
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Evas_Object_Grid_Option *opt;
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if (o != evas_object_smart_parent_get(child))
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{
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ERR("cannot unpack child from incorrect grid!");
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return EINA_FALSE;
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}
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opt = _evas_object_grid_option_del(child);
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if (!opt)
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{
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ERR("cannot unpack child with no packing option!");
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return EINA_FALSE;
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}
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_evas_object_grid_child_disconnect(o, child);
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_evas_object_grid_remove_opt(priv, opt);
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evas_object_smart_member_del(child);
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free(opt);
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return EINA_TRUE;
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}
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EOLIAN static void
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_evas_grid_clear(Eo *o, Evas_Grid_Data *priv, Eina_Bool clear)
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{
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Evas_Object_Grid_Option *opt;
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EINA_LIST_FREE(priv->children, opt)
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{
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_evas_object_grid_child_disconnect(o, opt->obj);
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_evas_object_grid_option_del(opt->obj);
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evas_object_smart_member_del(opt->obj);
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if (clear)
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evas_object_del(opt->obj);
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free(opt);
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}
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}
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EOLIAN static Eina_Bool
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_evas_grid_pack_get(const Eo *o EINA_UNUSED, Evas_Grid_Data *_pd EINA_UNUSED, Evas_Object *child, int *x, int *y, int *w, int *h)
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{
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Evas_Object_Grid_Option *opt;
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if (x) *x = 0;
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if (y) *y = 0;
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if (w) *w = 0;
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if (h) *h = 0;
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opt = _evas_object_grid_option_get(child);
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if (!opt) return 0;
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if (x) *x = opt->x;
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if (y) *y = opt->y;
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if (w) *w = opt->w;
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if (h) *h = opt->h;
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return 1;
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}
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EOLIAN static Eina_Iterator*
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_evas_grid_iterator_new(const Eo *o, Evas_Grid_Data *priv)
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{
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Evas_Object_Grid_Iterator *it;
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if (!priv->children) return NULL;
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it = calloc(1, sizeof(Evas_Object_Grid_Iterator));
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if (!it) return NULL;
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EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
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it->real_iterator = eina_list_iterator_new(priv->children);
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it->grid = o;
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it->iterator.next = FUNC_ITERATOR_NEXT(_evas_object_grid_iterator_next);
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it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_evas_object_grid_iterator_get_container);
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it->iterator.free = FUNC_ITERATOR_FREE(_evas_object_grid_iterator_free);
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return &it->iterator;
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}
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EOLIAN static Eina_Accessor*
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_evas_grid_accessor_new(const Eo *o, Evas_Grid_Data *priv)
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{
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Evas_Object_Grid_Accessor *it;
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if (!priv->children) return NULL;
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it = calloc(1, sizeof(Evas_Object_Grid_Accessor));
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if (!it) return NULL;
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EINA_MAGIC_SET(&it->accessor, EINA_MAGIC_ACCESSOR);
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it->real_accessor = eina_list_accessor_new(priv->children);
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it->grid = o;
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it->accessor.get_at = FUNC_ACCESSOR_GET_AT(_evas_object_grid_accessor_get_at);
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it->accessor.get_container = FUNC_ACCESSOR_GET_CONTAINER(_evas_object_grid_accessor_get_container);
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it->accessor.free = FUNC_ACCESSOR_FREE(_evas_object_grid_accessor_free);
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return &it->accessor;
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}
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EOLIAN static Eina_List*
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_evas_grid_children_get(Eo *o EINA_UNUSED, Evas_Grid_Data *priv)
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{
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Eina_List *new_list = NULL, *l;
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Evas_Object_Grid_Option *opt;
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EINA_LIST_FOREACH(priv->children, l, opt)
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new_list = eina_list_append(new_list, opt->obj);
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return new_list;
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}
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EOLIAN static Eina_Bool
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_evas_grid_mirrored_get(Eo *o EINA_UNUSED, Evas_Grid_Data *priv)
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{
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return priv->is_mirrored;
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}
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EOLIAN static void
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_evas_grid_mirrored_set(Eo *o EINA_UNUSED, Evas_Grid_Data *priv, Eina_Bool mirrored)
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{
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mirrored = !!mirrored;
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if (priv->is_mirrored != mirrored)
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{
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priv->is_mirrored = mirrored;
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_evas_object_grid_smart_calculate(o);
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}
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}
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#include "canvas/evas_grid.eo.c"
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