557 lines
14 KiB
C
557 lines
14 KiB
C
#include "e.h"
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/* FIXME: something is weird here - i had to reverse all stacking logic to make
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* it work... */
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typedef struct _E_Smart_Data E_Smart_Data;
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typedef struct _E_Layout_Item E_Layout_Item;
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struct _E_Smart_Data
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{
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Evas_Coord x, y, w, h;
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Evas_Coord vw, vh;
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Evas_Object *obj;
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Evas_Object *clip;
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int frozen;
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unsigned char changed E_BITFIELD;
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Eina_Inlist *items;
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};
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struct _E_Layout_Item
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{
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EINA_INLIST;
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E_Smart_Data *sd;
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Evas_Coord x, y, w, h;
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Evas_Object *obj;
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};
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/* local subsystem functions */
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static E_Layout_Item *_e_layout_smart_adopt(E_Smart_Data *sd, Evas_Object *obj);
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static void _e_layout_smart_disown(Evas_Object *obj);
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static void _e_layout_smart_item_del_hook(void *data, Evas *e, Evas_Object *obj, void *event_info);
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static void _e_layout_smart_reconfigure(E_Smart_Data *sd);
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static void _e_layout_smart_move_resize_item(E_Layout_Item *li);
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static void _e_layout_smart_init(void);
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static void _e_layout_smart_add(Evas_Object *obj);
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static void _e_layout_smart_del(Evas_Object *obj);
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static void _e_layout_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y);
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static void _e_layout_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h);
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static void _e_layout_smart_show(Evas_Object *obj);
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static void _e_layout_smart_hide(Evas_Object *obj);
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static void _e_layout_smart_color_set(Evas_Object *obj, int r, int g, int b, int a);
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static void _e_layout_smart_clip_set(Evas_Object *obj, Evas_Object *clip);
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static void _e_layout_smart_clip_unset(Evas_Object *obj);
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/* local subsystem globals */
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static Evas_Smart *_e_smart = NULL;
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/* externally accessible functions */
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E_API Evas_Object *
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e_layout_add(Evas *evas)
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{
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_e_layout_smart_init();
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return evas_object_smart_add(evas, _e_smart);
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}
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E_API int
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e_layout_freeze(Evas_Object *obj)
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{
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E_Smart_Data *sd;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERR(0);
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sd = evas_object_smart_data_get(obj);
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sd->frozen++;
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return sd->frozen;
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}
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E_API int
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e_layout_thaw(Evas_Object *obj)
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{
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E_Smart_Data *sd;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERR(0);
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sd = evas_object_smart_data_get(obj);
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sd->frozen--;
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if (sd->frozen <= 0) _e_layout_smart_reconfigure(sd);
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return sd->frozen;
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}
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E_API void
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e_layout_virtual_size_set(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
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{
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E_Smart_Data *sd;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERRNR();
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sd = evas_object_smart_data_get(obj);
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if (w < 1) w = 1;
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if (h < 1) h = 1;
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if ((sd->vw == w) && (sd->vh == h)) return;
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sd->vw = w;
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sd->vh = h;
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sd->changed = 1;
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if (sd->frozen <= 0) _e_layout_smart_reconfigure(sd);
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}
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E_API void
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e_layout_virtual_size_get(Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
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{
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E_Smart_Data *sd;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERRNR();
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sd = evas_object_smart_data_get(obj);
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if (w) *w = sd->vw;
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if (h) *h = sd->vh;
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}
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E_API void
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e_layout_coord_canvas_to_virtual(Evas_Object *obj, Evas_Coord cx, Evas_Coord cy, Evas_Coord *vx, Evas_Coord *vy)
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{
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E_Smart_Data *sd;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERRNR();
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sd = evas_object_smart_data_get(obj);
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if (vx) *vx = (cx - sd->x) * ((double)(sd->vw) / sd->w);
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if (vy) *vy = (cy - sd->y) * ((double)(sd->vh) / sd->h);
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}
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E_API void
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e_layout_coord_virtual_to_canvas(Evas_Object *obj, Evas_Coord vx, Evas_Coord vy, Evas_Coord *cx, Evas_Coord *cy)
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{
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E_Smart_Data *sd;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERRNR();
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sd = evas_object_smart_data_get(obj);
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if (cx) *cx = vx * ((double)(sd->w) / sd->vw) + sd->x;
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if (cy) *cy = vy * ((double)(sd->h) / sd->vh) + sd->y;
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}
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E_API void
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e_layout_pack(Evas_Object *obj, Evas_Object *child)
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{
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E_Smart_Data *sd;
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E_Layout_Item *li;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERRNR();
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sd = evas_object_smart_data_get(obj);
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li = _e_layout_smart_adopt(sd, child);
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sd->items = eina_inlist_append(sd->items, EINA_INLIST_GET(li));
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evas_object_lower(child);
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if (sd->frozen <= 0) _e_layout_smart_move_resize_item(li);
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}
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E_API void
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e_layout_child_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
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{
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E_Layout_Item *li;
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li = evas_object_data_get(obj, "e_layout_data");
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if (!li) return;
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if ((li->x == x) && (li->y == y)) return;
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li->x = x;
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li->y = y;
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if (li->sd->frozen <= 0) _e_layout_smart_move_resize_item(li);
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}
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E_API Evas_Object *
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e_layout_child_above_get(Evas_Object *obj)
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{
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E_Layout_Item *li;
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li = evas_object_data_get(obj, "e_layout_data");
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EINA_SAFETY_ON_NULL_RETURN_VAL(li, NULL);
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li = (E_Layout_Item*)EINA_INLIST_GET(li)->next;
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return li ? li->obj : NULL;
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}
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E_API Evas_Object *
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e_layout_child_below_get(Evas_Object *obj)
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{
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E_Layout_Item *li;
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li = evas_object_data_get(obj, "e_layout_data");
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EINA_SAFETY_ON_NULL_RETURN_VAL(li, NULL);
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li = (E_Layout_Item*)EINA_INLIST_GET(li)->prev;
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return li ? li->obj : NULL;
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}
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E_API Evas_Object *
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e_layout_top_child_get(Evas_Object *obj)
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{
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E_Smart_Data *sd;
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E_Layout_Item *li;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERRNR() NULL;
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sd = evas_object_smart_data_get(obj);
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if (!sd->items) return NULL;
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li = (E_Layout_Item*)sd->items->last;
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return li->obj;
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}
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E_API void
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e_layout_child_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
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{
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E_Layout_Item *li;
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li = evas_object_data_get(obj, "e_layout_data");
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if (!li) return;
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if (w < 0) w = 0;
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if (h < 0) h = 0;
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if ((li->w == w) && (li->h == h)) return;
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li->w = w;
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li->h = h;
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if (li->sd->frozen <= 0) _e_layout_smart_move_resize_item(li);
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}
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E_API void
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e_layout_child_lower(Evas_Object *obj)
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{
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E_Layout_Item *li;
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li = evas_object_data_get(obj, "e_layout_data");
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if (!li) return;
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if ((!li->sd->items) || (!EINA_INLIST_GET(li)->next)) return;
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li->sd->items = eina_inlist_promote(li->sd->items, EINA_INLIST_GET(li));
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evas_object_lower(obj);
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}
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E_API void
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e_layout_child_raise(Evas_Object *obj)
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{
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E_Layout_Item *li;
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li = evas_object_data_get(obj, "e_layout_data");
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if (!li) return;
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if ((!li->sd->items) || (!EINA_INLIST_GET(li)->prev)) return;
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li->sd->items = eina_inlist_demote(li->sd->items, EINA_INLIST_GET(li));
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evas_object_raise(obj);
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}
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E_API void
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e_layout_child_lower_below(Evas_Object *obj, Evas_Object *below)
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{
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E_Layout_Item *li, *li2;
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EINA_SAFETY_ON_NULL_RETURN(obj);
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EINA_SAFETY_ON_NULL_RETURN(below);
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if (obj == below) return;
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li = evas_object_data_get(obj, "e_layout_data");
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li2 = evas_object_data_get(below, "e_layout_data");
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if ((!li) || (!li2) || (li->sd != li2->sd)) return;
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li->sd->items = eina_inlist_remove(li->sd->items, EINA_INLIST_GET(li));
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evas_object_stack_below(obj, below);
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li->sd->items = eina_inlist_prepend_relative(li->sd->items, EINA_INLIST_GET(li), EINA_INLIST_GET(li2));
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}
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E_API void
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e_layout_child_raise_above(Evas_Object *obj, Evas_Object *above)
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{
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E_Layout_Item *li, *li2;
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EINA_SAFETY_ON_NULL_RETURN(obj);
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EINA_SAFETY_ON_NULL_RETURN(above);
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if (obj == above) return;
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li = evas_object_data_get(obj, "e_layout_data");
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li2 = evas_object_data_get(above, "e_layout_data");
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if ((!li) || (!li2) || (li->sd != li2->sd)) return;
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li->sd->items = eina_inlist_remove(li->sd->items, EINA_INLIST_GET(li));
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evas_object_stack_above(obj, above);
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li->sd->items = eina_inlist_append_relative(li->sd->items, EINA_INLIST_GET(li), EINA_INLIST_GET(li2));
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}
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E_API void
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e_layout_child_geometry_get(Evas_Object *obj, Evas_Coord *x, Evas_Coord *y, Evas_Coord *w, Evas_Coord *h)
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{
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E_Layout_Item *li;
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li = evas_object_data_get(obj, "e_layout_data");
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if (!li) return;
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if (x) *x = li->x;
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if (y) *y = li->y;
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if (w) *w = li->w;
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if (h) *h = li->h;
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}
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E_API void
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e_layout_unpack(Evas_Object *obj)
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{
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E_Layout_Item *li;
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E_Smart_Data *sd;
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li = evas_object_data_get(obj, "e_layout_data");
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if (!li) return;
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sd = li->sd;
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sd->items = eina_inlist_remove(sd->items, EINA_INLIST_GET(li));
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_e_layout_smart_disown(obj);
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}
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E_API Eina_List *
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e_layout_children_get(Evas_Object *obj)
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{
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E_Smart_Data *sd;
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Eina_List *l = NULL;
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E_Layout_Item *li;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERRNR() NULL;
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sd = evas_object_smart_data_get(obj);
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EINA_INLIST_FOREACH(sd->items, li)
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l = eina_list_append(l, li->obj);
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return l;
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}
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E_API Evas_Object *
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e_layout_top_child_at_xy_get(Evas_Object *obj, Evas_Coord x, Evas_Coord y, Eina_Bool vis, const Eina_List *ignore)
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{
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E_Smart_Data *sd;
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E_Layout_Item *li;
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if (evas_object_smart_smart_get(obj) != _e_smart) SMARTERRNR() NULL;
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sd = evas_object_smart_data_get(obj);
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if (!sd->items) return NULL;
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EINA_INLIST_REVERSE_FOREACH(sd->items, li)
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if (E_INSIDE(x, y, li->x, li->y, li->w, li->h))
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{
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if (eina_list_data_find(ignore, li->obj)) continue;
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if ((!vis) || evas_object_visible_get(li->obj))
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return li->obj;
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}
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return NULL;
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}
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/* local subsystem functions */
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static E_Layout_Item *
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_e_layout_smart_adopt(E_Smart_Data *sd, Evas_Object *obj)
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{
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E_Layout_Item *li;
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li = evas_object_data_get(obj, "e_layout_data");
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if (li) e_layout_unpack(obj);
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li = calloc(1, sizeof(E_Layout_Item));
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if (!li) return NULL;
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li->sd = sd;
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li->obj = obj;
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/* defaults */
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li->x = 0;
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li->y = 0;
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li->w = 0;
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li->h = 0;
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evas_object_clip_set(obj, sd->clip);
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evas_object_smart_member_add(obj, li->sd->obj);
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evas_object_data_set(obj, "e_layout_data", li);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_FREE,
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_e_layout_smart_item_del_hook, NULL);
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if ((!evas_object_visible_get(sd->clip)) &&
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(evas_object_visible_get(sd->obj)))
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evas_object_show(sd->clip);
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return li;
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}
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static void
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_e_layout_smart_disown(Evas_Object *obj)
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{
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E_Layout_Item *li;
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li = evas_object_data_get(obj, "e_layout_data");
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if (!li) return;
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if (!li->sd->items)
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{
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if (evas_object_visible_get(li->sd->clip))
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evas_object_hide(li->sd->clip);
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}
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evas_object_event_callback_del(obj,
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EVAS_CALLBACK_FREE,
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_e_layout_smart_item_del_hook);
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evas_object_smart_member_del(obj);
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evas_object_data_del(obj, "e_layout_data");
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free(li);
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}
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static void
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_e_layout_smart_item_del_hook(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED)
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{
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e_layout_unpack(obj);
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}
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static void
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_e_layout_smart_reconfigure(E_Smart_Data *sd)
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{
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E_Layout_Item *li;
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if (!sd->changed) return;
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EINA_INLIST_FOREACH(sd->items, li)
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_e_layout_smart_move_resize_item(li);
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sd->changed = 0;
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}
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static void
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_e_layout_smart_move_resize_item(E_Layout_Item *li)
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{
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evas_object_move(li->obj,
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li->sd->x + ((li->x * li->sd->w) / li->sd->vw),
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li->sd->y + ((li->y * li->sd->h) / li->sd->vh));
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evas_object_resize(li->obj,
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MAX((li->w * li->sd->w) / li->sd->vw, 1),
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MAX((li->h * li->sd->h) / li->sd->vh, 1));
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}
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static void
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_e_layout_smart_init(void)
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{
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if (_e_smart) return;
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{
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static const Evas_Smart_Class sc =
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{
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"e_layout",
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EVAS_SMART_CLASS_VERSION,
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_e_layout_smart_add,
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_e_layout_smart_del,
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_e_layout_smart_move,
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_e_layout_smart_resize,
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_e_layout_smart_show,
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_e_layout_smart_hide,
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_e_layout_smart_color_set,
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_e_layout_smart_clip_set,
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_e_layout_smart_clip_unset,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL
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};
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_e_smart = evas_smart_class_new(&sc);
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}
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}
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static void
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_e_layout_smart_add(Evas_Object *obj)
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{
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E_Smart_Data *sd;
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sd = calloc(1, sizeof(E_Smart_Data));
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if (!sd) return;
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sd->obj = obj;
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sd->x = 0;
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sd->y = 0;
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sd->w = 0;
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sd->h = 0;
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sd->vw = 1;
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sd->vh = 1;
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sd->clip = evas_object_rectangle_add(evas_object_evas_get(obj));
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evas_object_smart_member_add(sd->clip, obj);
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evas_object_move(sd->clip, -100001, -100001);
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evas_object_resize(sd->clip, 200002, 200002);
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evas_object_color_set(sd->clip, 255, 255, 255, 255);
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evas_object_smart_data_set(obj, sd);
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}
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static void
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_e_layout_smart_del(Evas_Object *obj)
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{
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E_Smart_Data *sd;
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sd = evas_object_smart_data_get(obj);
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if (!sd) return;
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while (sd->items)
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{
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E_Layout_Item *li = (E_Layout_Item*)sd->items;
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sd->items = eina_inlist_remove(sd->items, EINA_INLIST_GET(li));
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_e_layout_smart_disown(li->obj);
|
|
}
|
|
evas_object_del(sd->clip);
|
|
free(sd);
|
|
}
|
|
|
|
static void
|
|
_e_layout_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
|
|
{
|
|
E_Smart_Data *sd;
|
|
E_Layout_Item *li;
|
|
Evas_Coord dx, dy;
|
|
|
|
sd = evas_object_smart_data_get(obj);
|
|
if (!sd) return;
|
|
if ((x == sd->x) && (y == sd->y)) return;
|
|
dx = x - sd->x;
|
|
dy = y - sd->y;
|
|
EINA_INLIST_FOREACH(sd->items, li)
|
|
{
|
|
Evas_Coord ox, oy;
|
|
|
|
evas_object_geometry_get(li->obj, &ox, &oy, NULL, NULL);
|
|
evas_object_move(li->obj, ox + dx, oy + dy);
|
|
}
|
|
sd->x = x;
|
|
sd->y = y;
|
|
}
|
|
|
|
static void
|
|
_e_layout_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;
|
|
if (sd->frozen <= 0) _e_layout_smart_reconfigure(sd);
|
|
}
|
|
|
|
static void
|
|
_e_layout_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_layout_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_layout_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_layout_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_layout_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);
|
|
}
|
|
|