Tizen Native API
5.0
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genlist_example_05.c
//Compile with: //gcc -g genlist_example_05.c -o genlist_example_05 `pkg-config --cflags --libs elementary` #include <Elementary.h> #define N_ITEMS 6 typedef struct _Node_Data { Eina_List *children; int value; int level; Eina_Bool favorite; } Node_Data; static Elm_Genlist_Item_Class *_itc = NULL; static Elm_Genlist_Item_Class *_itp = NULL; static Elm_Genlist_Item_Class *_itfav = NULL; static int nitems = 0; static char * _item_label_get(void *data, Evas_Object *obj EINA_UNUSED, const char *part) { char buf[256] = {0}; Node_Data *d = data; if (!strcmp(part, "elm.text")) snprintf(buf, sizeof(buf), "Item # %i (level %i)", d->value, d->level); return strdup(buf); } static Evas_Object * _item_content_get(void *data EINA_UNUSED, Evas_Object *obj, const char *part) { Evas_Object *ic = elm_icon_add(obj); if (!strcmp(part, "elm.swallow.icon")) elm_icon_standard_set(ic, "file"); evas_object_size_hint_aspect_set(ic, EVAS_ASPECT_CONTROL_VERTICAL, 1, 1); return ic; } static void _item_sel_cb(void *data, Evas_Object *obj, void *event_info) { printf("sel item data [%p] on genlist obj [%p], item pointer [%p]\n", data, obj, event_info); } static char * _parent_label_get(void *data, Evas_Object *obj EINA_UNUSED, const char *part EINA_UNUSED) { char buf[256]; Node_Data *d = data; snprintf(buf, sizeof(buf), "Group %d (%d items)", d->value / 7, eina_list_count(d->children)); return strdup(buf); } static Evas_Object * _parent_content_get(void *data EINA_UNUSED, Evas_Object *obj, const char *part) { Evas_Object *ic = elm_icon_add(obj); if (!strcmp(part, "elm.swallow.icon")) elm_icon_standard_set(ic, "folder"); evas_object_size_hint_aspect_set(ic, EVAS_ASPECT_CONTROL_VERTICAL, 1, 1); return ic; } static char * _favorite_label_get(void *data, Evas_Object *obj EINA_UNUSED, const char *part) { char buf[256] = {0}; Node_Data *d = data; if (!strcmp(part, "elm.text")) snprintf(buf, sizeof(buf), "Favorite # %i", d->value); return strdup(buf); } static Evas_Object * _favorite_content_get(void *data EINA_UNUSED, Evas_Object *obj, const char *part) { Evas_Object *ic = elm_icon_add(obj); if (!strcmp(part, "elm.swallow.icon")) elm_icon_standard_set(ic, "apps"); evas_object_size_hint_aspect_set(ic, EVAS_ASPECT_CONTROL_VERTICAL, 1, 1); return ic; } static void _append_cb(void *data, Evas_Object *o EINA_UNUSED, void *event_info EINA_UNUSED) { Evas_Object *list = data; Elm_Object_Item *glit, *parent = NULL; Node_Data *pdata, *d = malloc(sizeof(*d)); d->children = NULL; d->value = nitems++; d->favorite = EINA_FALSE; glit = elm_genlist_selected_item_get(list); if (glit) parent = elm_genlist_item_parent_get(glit); if (parent) { d->level = elm_genlist_item_expanded_depth_get(parent) + 1; pdata = elm_object_item_data_get(parent); pdata->children = eina_list_append(pdata->children, d); } else d->level = 0; elm_genlist_item_append(list, _itc, d, parent, ELM_GENLIST_ITEM_NONE, _item_sel_cb, NULL); } static void _favorite_cb(void *data, Evas_Object *o EINA_UNUSED, void *event_info EINA_UNUSED) { Evas_Object *list = data; Elm_Object_Item *glit = elm_genlist_selected_item_get(list); if (!glit) return; Node_Data *d = elm_object_item_data_get(glit); d->favorite = !d->favorite; if (d->favorite) elm_genlist_item_item_class_update(glit, _itfav); else { if (d->children) elm_genlist_item_item_class_update(glit, _itp); else elm_genlist_item_item_class_update(glit, _itc); } elm_genlist_item_update(glit); } static void _add_child_cb(void *data, Evas_Object *o EINA_UNUSED, void *event_info EINA_UNUSED) { Evas_Object *list = data; Elm_Object_Item *glit = elm_genlist_selected_item_get(list); Elm_Object_Item *glit_prev, *glit_parent; if (!glit) return; Node_Data *d = elm_object_item_data_get(glit); glit_prev = elm_genlist_item_prev_get(glit); glit_parent = elm_genlist_item_parent_get(glit); Eina_Bool change_item = !d->children; // creating new item data Node_Data *ndata = malloc(sizeof(*ndata)); ndata->value = nitems++; ndata->children = NULL; ndata->favorite = EINA_FALSE; ndata->level = elm_genlist_item_expanded_depth_get(glit) + 1; d->children = eina_list_append(d->children, ndata); // Changing leaf item to parent item if (change_item) { elm_object_item_del(glit); if (glit_prev != glit_parent) glit = elm_genlist_item_insert_after(list, _itp, d, glit_parent, glit_prev, ELM_GENLIST_ITEM_TREE, _item_sel_cb, NULL); else glit = elm_genlist_item_prepend(list, _itp, d, glit_parent, ELM_GENLIST_ITEM_TREE, _item_sel_cb, NULL); elm_genlist_item_expanded_set(glit, EINA_FALSE); elm_genlist_item_selected_set(glit, EINA_TRUE); } else if (elm_genlist_item_expanded_get(glit)) { elm_genlist_item_append(list, _itc, ndata, glit, ELM_GENLIST_ITEM_NONE, _item_sel_cb, NULL); } elm_genlist_item_update(glit); } static void _clear_list(Node_Data *d) { Node_Data *tmp; EINA_LIST_FREE(d->children, tmp) _clear_list(tmp); free(d); } static void _del_item_cb(void *data, Evas_Object *o EINA_UNUSED, void *event_info EINA_UNUSED) { Evas_Object *list = data; Elm_Object_Item *glit = elm_genlist_selected_item_get(list); Elm_Object_Item *glit_parent = NULL; if (!glit) return; Node_Data *pdata, *d = elm_object_item_data_get(glit); glit_parent = elm_genlist_item_parent_get(glit); elm_genlist_item_subitems_clear(glit); elm_object_item_del(glit); if (glit_parent) { pdata = elm_object_item_data_get(glit_parent); pdata->children = eina_list_remove(pdata->children, d); } _clear_list(d); elm_genlist_item_update(glit_parent); } static void _expand_request_cb(void *data EINA_UNUSED, Evas_Object *o EINA_UNUSED, void *event_info) { Elm_Object_Item *glit = event_info; printf("expand request on item: %p\n", event_info); elm_genlist_item_expanded_set(glit, EINA_TRUE); } static void _contract_request_cb(void *data EINA_UNUSED, Evas_Object *o EINA_UNUSED, void *event_info) { Elm_Object_Item *glit = event_info; printf("contract request on item: %p\n", event_info); elm_genlist_item_expanded_set(glit, EINA_FALSE); } static void _expanded_cb(void *data EINA_UNUSED, Evas_Object *o EINA_UNUSED, void *event_info) { Eina_List *l; Elm_Object_Item *glit = event_info; Node_Data *it_data, *d = elm_object_item_data_get(glit); Evas_Object *list = elm_object_item_widget_get(glit); Elm_Genlist_Item_Class *ic; EINA_LIST_FOREACH(d->children, l, it_data) { Elm_Object_Item *nitem; Elm_Genlist_Item_Type type = ELM_GENLIST_ITEM_NONE; printf("expanding item: #%d from parent #%d\n", it_data->value, d->value); if (it_data->favorite) ic = _itfav; else if (it_data->children) { ic = _itp; type = ELM_GENLIST_ITEM_TREE; } else ic = _itc; nitem = elm_genlist_item_append(list, ic, it_data, glit, type, _item_sel_cb, NULL); elm_genlist_item_expanded_set(nitem, EINA_FALSE); } } static void _contracted_cb(void *data EINA_UNUSED, Evas_Object *o EINA_UNUSED, void *event_info) { Elm_Object_Item *glit = event_info; elm_genlist_item_subitems_clear(glit); } static Evas_Object * _button_add(Evas_Object *list, Evas_Object *box, const char *label, Evas_Smart_Cb cb) { Evas_Object *bt; bt = elm_button_add(elm_object_parent_widget_get(list)); elm_object_text_set(bt, label); elm_box_pack_end(box, bt); evas_object_show(bt); if (cb) evas_object_smart_callback_add(bt, "clicked", cb, list); return bt; } EAPI_MAIN int elm_main(int argc EINA_UNUSED, char **argv EINA_UNUSED) { Evas_Object *win, *box, *fbox; Evas_Object *list; int i; win = elm_win_util_standard_add("genlist", "Genlist"); elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED); elm_win_autodel_set(win, EINA_TRUE); box = elm_box_add(win); evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); elm_win_resize_object_add(win, box); evas_object_show(box); if (!_itc) { _itc = elm_genlist_item_class_new(); _itc->item_style = "default"; _itc->func.text_get = _item_label_get; _itc->func.content_get = _item_content_get; _itc->func.state_get = NULL; _itc->func.del = NULL; } if (!_itp) { _itp = elm_genlist_item_class_new(); _itp->item_style = "default"; _itp->func.text_get = _parent_label_get; _itp->func.content_get = _parent_content_get; _itp->func.state_get = NULL; _itp->func.del = NULL; } if (!_itfav) { _itfav = elm_genlist_item_class_new(); _itfav->item_style = "default"; _itfav->func.text_get = _favorite_label_get; _itfav->func.content_get = _favorite_content_get; _itfav->func.state_get = NULL; _itfav->func.del = NULL; } list = elm_genlist_add(win); evas_object_size_hint_weight_set(list, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); evas_object_size_hint_align_set(list, EVAS_HINT_FILL, EVAS_HINT_FILL); elm_box_pack_end(box, list); evas_object_show(list); fbox = elm_box_add(win); elm_box_layout_set(fbox, evas_object_box_layout_flow_horizontal, NULL, NULL); evas_object_size_hint_weight_set(fbox, EVAS_HINT_EXPAND, 0); evas_object_size_hint_align_set(fbox, EVAS_HINT_FILL, EVAS_HINT_FILL); elm_box_pack_end(box, fbox); evas_object_show(fbox); _button_add(list, fbox, "append item", _append_cb); _button_add(list, fbox, "favorite", _favorite_cb); _button_add(list, fbox, "add child", _add_child_cb); _button_add(list, fbox, "del item", _del_item_cb); Node_Data *pdata = NULL; // data for the parent of the group Elm_Object_Item *glg = NULL; for (i = 0; i < N_ITEMS; i++) { Elm_Object_Item *gli = NULL; Node_Data *data = malloc(sizeof(*data)); // data for this item data->children = NULL; data->value = i; data->favorite = EINA_FALSE; nitems++; printf("creating item: #%d\n", data->value); if (i % 3 == 0) { glg = gli = elm_genlist_item_append(list, _itp, data, NULL, ELM_GENLIST_ITEM_TREE, _item_sel_cb, NULL); elm_genlist_item_expanded_set(glg, EINA_TRUE); pdata = data; data->level = 0; } else { gli = elm_genlist_item_append(list, _itc, data, glg, ELM_GENLIST_ITEM_NONE, _item_sel_cb, NULL); if (pdata) pdata->children = eina_list_append(pdata->children, data); data->level = 1; } } evas_object_smart_callback_add(list, "expand,request", _expand_request_cb, list); evas_object_smart_callback_add(list, "contract,request", _contract_request_cb, list); evas_object_smart_callback_add(list, "expanded", _expanded_cb, list); evas_object_smart_callback_add(list, "contracted", _contracted_cb, list); evas_object_resize(win, 420, 600); evas_object_show(win); elm_run(); return 0; } ELM_MAIN()