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efl/legacy/elementary/src/lib/elm_diskselector.c

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#include <Elementary.h>
#include "elm_priv.h"
#include "els_scroller.h"
#ifndef MAX
# define MAX(a, b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef CEIL
#define CEIL(a) (((a) % 2 != 0) ? ((a) / 2 + 1) : ((a) / 2))
#endif
#define DISPLAY_ITEM_NUM_MIN 3
typedef struct _Widget_Data Widget_Data;
typedef struct _Elm_Diskselector_Item Elm_Diskselector_Item;
struct _Widget_Data
{
Evas_Object *self;
Evas_Object *scroller;
Evas_Object *main_box;
Evas_Object *left_blank;
Evas_Object *right_blank;
Elm_Diskselector_Item *selected_item;
Elm_Diskselector_Item *first;
Elm_Diskselector_Item *second;
Elm_Diskselector_Item *s_last;
Elm_Diskselector_Item *last;
Eina_List *items;
Eina_List *r_items;
Eina_List *over_items;
Eina_List *under_items;
int item_count, len_threshold, len_side, display_item_num;
Ecore_Idle_Enterer *idler;
Ecore_Idle_Enterer *check_idler;
Evas_Coord minw, minh;
Eina_Bool init:1;
Eina_Bool round:1;
Eina_Bool display_item_num_by_api:1;
};
struct _Elm_Diskselector_Item
{
ELM_WIDGET_ITEM;
Eina_List *node;
Evas_Object *icon;
const char *label;
Evas_Smart_Cb func;
};
static const char *widtype = NULL;
static Eina_Bool _move_scroller(void *data);
static void _del_hook(Evas_Object * obj);
static void _del_pre_hook(Evas_Object * obj);
static void _sizing_eval(Evas_Object * obj);
static void _theme_hook(Evas_Object * obj);
static void _on_focus_hook(void *data, Evas_Object *obj);
static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src, Evas_Callback_Type type, void *event_info);
static void _sub_del(void *data, Evas_Object * obj, void *event_info);
static void _round_items_del(Widget_Data *wd);
static void _scroller_move_cb(void *data, Evas_Object *obj, void *event_info);
static void _item_click_cb(void *data, Evas_Object *obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__);
static void _selected_item_indicate(Elm_Diskselector_Item *it);
static void _item_text_set_hook(Elm_Object_Item *it,
const char *part,
const char *label);
static const char * _item_text_get_hook(const Elm_Object_Item *it,
const char *part);
static void _item_content_set_hook(Elm_Object_Item *it,
const char *part,
Evas_Object *content);
static Evas_Object * _item_content_get_hook(const Elm_Object_Item *it,
const char *part);
static const char SIG_SELECTED[] = "selected";
static const Evas_Smart_Cb_Description _signals[] = {
{SIG_SELECTED, ""},
{NULL, NULL}
};
static void
_diskselector_object_resize(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
{
Widget_Data *wd;
Evas_Coord w, h;
wd = elm_widget_data_get(data);
if (!wd) return;
if ((wd->minw == -1) && (wd->minh == -1))
elm_coords_finger_size_adjust(6, &wd->minw, 1, &wd->minh);
edje_object_size_min_restricted_calc
(elm_smart_scroller_edje_object_get
(wd->scroller), &wd->minw, &wd->minh, wd->minw, wd->minh);
evas_object_size_hint_min_set(obj, wd->minw, wd->minh);
evas_object_size_hint_max_set(obj, -1, -1);
evas_object_geometry_get(wd->scroller, NULL, NULL, &w, &h);
if (wd->round)
evas_object_resize(wd->main_box, (w / wd->display_item_num) * (wd->item_count + (CEIL(wd->display_item_num) * 2)), h);
else
evas_object_resize(wd->main_box, (w / wd->display_item_num) * (wd->item_count + CEIL(wd->display_item_num)), h);
elm_smart_scroller_paging_set(wd->scroller, 0, 0,
(int)(w / wd->display_item_num), 0);
if (!wd->idler)
wd->idler = ecore_idle_enterer_before_add(_move_scroller, data);
}
static void
_item_del(Elm_Diskselector_Item *item)
{
if (!item) return;
eina_stringshare_del(item->label);
if (item->icon)
evas_object_del(item->icon);
}
static int
_count_letter(const char *str)
{
int pos = 0;
int code = 0, chnum;
for (chnum = 0; ; chnum++)
{
pos = evas_string_char_next_get(str, pos, &code);
if (code == 0) break;
}
return chnum;
}
static int
_check_letter(const char *str, int length)
{
int pos = 0;
int code = 0, chnum;
for (chnum = 0; ; chnum++)
{
if (chnum == length) break;
pos = evas_string_char_next_get(str, pos, &code);
if (code == 0) break;
}
return pos;
}
static Eina_Bool
_check_string(void *data)
{
int mid, steps, length, diff;
Elm_Diskselector_Item *it;
Eina_List *list, *l;
Evas_Coord ox, ow;
char buf[1024];
Widget_Data *wd = data;
evas_object_geometry_get(wd->scroller, &ox, NULL, &ow, NULL);
if (ow <= 0)
return EINA_FALSE;
if (!wd->init)
return EINA_FALSE;
if (!wd->round)
list = wd->items;
else
list = wd->r_items;
EINA_LIST_FOREACH(list, l, it)
{
Evas_Coord x, w;
int len;
evas_object_geometry_get(VIEW(it), &x, NULL, &w, NULL);
/* item not visible */
if ((x + w <= ox) || (x >= ox + ow))
continue;
len = _count_letter(it->label);
// // FIXME: len should be # of ut8f letters. ie count using utf8 string walk, not stringshare len
// len = eina_stringshare_strlen(it->label);
if (x <= ox + 5)
edje_object_signal_emit(VIEW(it), "elm,state,left_side",
"elm");
else if (x + w >= ox + ow - 5)
edje_object_signal_emit(VIEW(it), "elm,state,right_side",
"elm");
else
{
if ((wd->len_threshold) && (len > wd->len_threshold))
edje_object_signal_emit(VIEW(it), "elm,state,center_small",
"elm");
else
edje_object_signal_emit(VIEW(it), "elm,state,center",
"elm");
}
// if len is les that the limit len, skip anyway
if (len <= wd->len_side)
continue;
steps = len - wd->len_side + 1;
mid = x + w / 2;
if (mid <= ox + ow / 2)
diff = (ox + ow / 2) - mid;
else
diff = mid - (ox + ow / 2);
length = len - (int)(diff * steps / (ow / 3));
length = MAX(length, wd->len_side);
// limit string len to "length" ut8f chars
length = _check_letter(it->label, length);
// cut it off at byte mark returned form _check_letter
strncpy(buf, it->label, length);
buf[length] = '\0';
edje_object_part_text_set(VIEW(it), "elm.text", buf);
}
if (wd->check_idler)
ecore_idle_enterer_del(wd->check_idler);
wd->check_idler = NULL;
return EINA_FALSE;
}
static Eina_Bool
_item_del_pre_hook(Elm_Object_Item *it)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it, EINA_FALSE);
Elm_Diskselector_Item *item, *item2, *dit;
Eina_List *l;
int i = 0;
Widget_Data *wd;
item = (Elm_Diskselector_Item *) it;
wd = elm_widget_data_get(WIDGET(item));
if (!wd) return EINA_FALSE;
elm_box_unpack(wd->main_box, VIEW(item));
if (wd->round)
wd->r_items = eina_list_remove(wd->r_items, item);
wd->items = eina_list_remove(wd->items, item);
if (wd->selected_item == item)
{
dit = (Elm_Diskselector_Item *) eina_list_nth(wd->items, 0);
if (dit != item)
wd->selected_item = dit;
else
wd->selected_item = eina_list_nth(wd->items, 1);
_selected_item_indicate(wd->selected_item);
}
_item_del(item);
wd->item_count -= 1;
if (wd->round)
{
if (!wd->item_count)
{
evas_object_hide(wd->VIEW(first));
evas_object_hide(wd->VIEW(second));
evas_object_hide(wd->VIEW(last));
evas_object_hide(wd->VIEW(s_last));
EINA_LIST_FOREACH(wd->under_items, l, item2)
evas_object_hide(VIEW(item2));
EINA_LIST_FOREACH(wd->over_items, l, item2)
evas_object_hide(VIEW(item2));
}
else
{
dit = eina_list_nth(wd->items, 0);
if (dit)
{
eina_stringshare_replace(&wd->first->label, dit->label);
edje_object_part_text_set(wd->VIEW(first), "elm.text",
wd->first->label);
}
dit = eina_list_nth(wd->items, 1);
if (dit)
{
eina_stringshare_replace(&wd->second->label, dit->label);
edje_object_part_text_set(wd->VIEW(second), "elm.text",
wd->second->label);
}
// if more than 3 itmes should be displayed
for (i = 2; i < CEIL(wd->display_item_num); i++)
{
dit = eina_list_nth(wd->items, i);
item2 = eina_list_nth(wd->over_items, i - 2);
eina_stringshare_replace(&item2->label, dit->label);
edje_object_part_text_set(VIEW(item2), "elm.text", item2->label);
}
dit = eina_list_nth(wd->items, eina_list_count(wd->items) - 1);
if (dit)
{
eina_stringshare_replace(&wd->last->label, dit->label);
edje_object_part_text_set(wd->VIEW(last), "elm.text",
wd->last->label);
}
dit = eina_list_nth(wd->items, eina_list_count(wd->items) - 2);
if (dit)
{
eina_stringshare_replace(&wd->s_last->label, dit->label);
edje_object_part_text_set(wd->VIEW(s_last), "elm.text",
wd->s_last->label);
}
// if more than 3 itmes should be displayed
for (i = 3; i <= CEIL(wd->display_item_num); i++)
{
dit = eina_list_nth(wd->items, wd->item_count - i);
item2 = eina_list_nth(wd->under_items, i - 3);
eina_stringshare_replace(&item2->label, dit->label);
edje_object_part_text_set(VIEW(item2), "elm.text",
item2->label);
}
}
}
wd->check_idler = ecore_idle_enterer_before_add(_check_string, wd);
_sizing_eval(wd->self);
return EINA_TRUE;
}
static Elm_Diskselector_Item *
_item_new(Evas_Object *obj, Evas_Object *icon, const char *label, Evas_Smart_Cb func, const void *data)
{
Elm_Diskselector_Item *it;
const char *style = elm_widget_style_get(obj);
it = elm_widget_item_new(obj, Elm_Diskselector_Item);
if (!it) return NULL;
elm_widget_item_del_pre_hook_set(it, _item_del_pre_hook);
elm_widget_item_text_set_hook_set(it, _item_text_set_hook);
elm_widget_item_text_get_hook_set(it, _item_text_get_hook);
elm_widget_item_content_set_hook_set(it, _item_content_set_hook);
elm_widget_item_content_get_hook_set(it, _item_content_get_hook);
it->label = eina_stringshare_add(label);
it->icon = icon;
it->func = func;
it->base.data = data;
VIEW(it) = edje_object_add(evas_object_evas_get(obj));
_elm_theme_object_set(obj, VIEW(it), "diskselector", "item", style);
evas_object_size_hint_weight_set(VIEW(it), EVAS_HINT_EXPAND,
EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(VIEW(it), EVAS_HINT_FILL,
EVAS_HINT_FILL);
evas_object_show(VIEW(it));
if (it->label)
{
edje_object_part_text_set(VIEW(it), "elm.text", it->label);
edje_object_signal_callback_add(VIEW(it), "elm,action,click", "", _item_click_cb, it);
}
if (it->icon)
{
evas_object_size_hint_min_set(it->icon, 24, 24);
evas_object_size_hint_max_set(it->icon, 40, 40);
edje_object_part_swallow(VIEW(it), "elm.swallow.icon", it->icon);
evas_object_show(it->icon);
elm_widget_sub_object_add(obj, it->icon);
}
return it;
}
static void
_theme_data_get(Widget_Data *wd)
{
const char* str;
str = edje_object_data_get(wd->right_blank, "len_threshold");
if (str) wd->len_threshold = MAX(0, atoi(str));
else wd->len_threshold = 0;
if (!wd->display_item_num_by_api)
{
str = edje_object_data_get(wd->right_blank, "display_item_num");
if (str) wd->display_item_num = MAX(DISPLAY_ITEM_NUM_MIN, atoi(str));
else wd->display_item_num = DISPLAY_ITEM_NUM_MIN;
}
str = edje_object_data_get(wd->right_blank, "min_width");
if (str) wd->minw = MAX(-1, atoi(str));
else wd->minw = -1;
str = edje_object_data_get(wd->right_blank, "min_height");
if (str) wd->minh = MAX(-1, atoi(str));
else wd->minh = -1;
}
static void
_del_hook(Evas_Object * obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
free(wd);
}
static void
_del_pre_hook(Evas_Object * obj)
{
Elm_Diskselector_Item *it;
Eina_List *l;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (wd->left_blank)
evas_object_del(wd->left_blank);
if (wd->right_blank)
evas_object_del(wd->right_blank);
if (wd->last)
{
eina_stringshare_del(wd->last->label);
evas_object_del(wd->VIEW(last));
free(wd->last);
}
if (wd->s_last)
{
eina_stringshare_del(wd->s_last->label);
evas_object_del(wd->VIEW(s_last));
free(wd->s_last);
}
if (wd->second)
{
eina_stringshare_del(wd->second->label);
evas_object_del(wd->VIEW(second));
free(wd->second);
}
if (wd->first)
{
eina_stringshare_del(wd->first->label);
evas_object_del(wd->VIEW(first));
free(wd->first);
}
EINA_LIST_FOREACH(wd->under_items, l, it)
{
if (it)
{
eina_stringshare_del(it->label);
evas_object_del(VIEW(it));
free(it);
}
}
EINA_LIST_FOREACH(wd->over_items, l, it)
{
if (it)
{
eina_stringshare_del(it->label);
evas_object_del(VIEW(it));
free(it);
}
}
EINA_LIST_FREE(wd->items, it)
{
_item_del(it);
elm_widget_item_free(it);
}
eina_list_free(wd->r_items);
}
static void
_sizing_eval(Evas_Object * obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
_diskselector_object_resize(obj, NULL, obj, NULL);
}
static void
_theme_hook(Evas_Object * obj)
{
Eina_List *l;
Elm_Diskselector_Item *it;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (wd->scroller)
elm_smart_scroller_object_theme_set(obj, wd->scroller, "diskselector",
"base", elm_widget_style_get(obj));
if (wd->round)
{
EINA_LIST_FOREACH(wd->r_items, l, it)
{
_elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
elm_widget_style_get(obj));
edje_object_part_text_set(VIEW(it), "elm.text", it->label);
}
}
else
{
EINA_LIST_FOREACH(wd->items, l, it)
{
_elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
elm_widget_style_get(obj));
edje_object_part_text_set(VIEW(it), "elm.text", it->label);
}
}
_elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
elm_widget_style_get(obj));
_theme_data_get(wd);
_sizing_eval(obj);
}
static void
_sub_del(void *data __UNUSED__, Evas_Object * obj, void *event_info)
{
Widget_Data *wd = elm_widget_data_get(obj);
Evas_Object *sub = event_info;
Elm_Diskselector_Item *it;
const Eina_List *l;
if (!wd) return;
if (!sub) abort();
if (sub == wd->scroller)
wd->scroller = NULL;
else
{
EINA_LIST_FOREACH(wd->items, l, it)
{
if (sub == it->icon)
{
it->icon = NULL;
_sizing_eval(obj);
break;
}
}
}
}
static void
_select_item(Elm_Diskselector_Item *it)
{
if (!it) return;
Widget_Data *wd = elm_widget_data_get(WIDGET(it));
wd->selected_item = it;
_selected_item_indicate(wd->selected_item);
if (it->func) it->func((void *)it->base.data, WIDGET(it), it);
evas_object_smart_callback_call(WIDGET(it), SIG_SELECTED, it);
}
static void
_on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd)
return;
if (elm_widget_focus_get(obj))
{
edje_object_signal_emit(wd->self, "elm,action,focus", "elm");
evas_object_focus_set(wd->self, EINA_TRUE);
}
else
{
edje_object_signal_emit(wd->self, "elm,action,unfocus", "elm");
evas_object_focus_set(wd->self, EINA_FALSE);
}
}
static Eina_Bool
_event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
{
if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
Evas_Event_Key_Down *ev = event_info;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return EINA_FALSE;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
if (elm_widget_disabled_get(obj)) return EINA_FALSE;
Elm_Diskselector_Item *it = NULL;
Eina_List *l;
if (!wd->selected_item) {
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
return EINA_TRUE;
}
if ((!strcmp(ev->keyname, "Left")) || (!strcmp(ev->keyname, "KP_Left")) ||
(!strcmp(ev->keyname, "Up")) || (!strcmp(ev->keyname, "KP_Up")))
{
l = wd->selected_item->node->prev;
if ((!l) && (wd->round))
l = eina_list_last(wd->items);
}
else if ((!strcmp(ev->keyname, "Right")) || (!strcmp(ev->keyname, "KP_Right")) ||
(!strcmp(ev->keyname, "Down")) || (!strcmp(ev->keyname, "KP_Down")))
{
l = wd->selected_item->node->next;
if ((!l) && (wd->round))
l = wd->items;
}
else if ((!strcmp(ev->keyname, "Home")) || (!strcmp(ev->keyname, "KP_Home")))
l = wd->items;
else if ((!strcmp(ev->keyname, "End")) || (!strcmp(ev->keyname, "KP_End")))
l = eina_list_last(wd->items);
else return EINA_FALSE;
if (l)
it = eina_list_data_get(l);
if (it)
{
wd->selected_item = it;
if (!wd->idler)
wd->idler = ecore_idle_enterer_before_add(_move_scroller, obj);
}
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
return EINA_TRUE;
}
static void
_selected_item_indicate(Elm_Diskselector_Item *it)
{
Elm_Diskselector_Item *item;
Eina_List *l;
Widget_Data *wd;
wd = elm_widget_data_get(WIDGET(it));
if (!wd) return;
EINA_LIST_FOREACH(wd->r_items, l, item)
{
if (!strcmp(item->label, it->label)) edje_object_signal_emit(VIEW(item), "elm,state,selected", "elm");
else
edje_object_signal_emit(VIEW(item), "elm,state,default", "elm");
}
}
static void
_item_click_cb(void *data, Evas_Object *obj __UNUSED__,
const char *emission __UNUSED__, const char *source __UNUSED__)
{
Elm_Diskselector_Item *it = data;
if (!it) return;
Widget_Data *wd;
wd = elm_widget_data_get(WIDGET(it));
if (!wd) return;
if (wd->selected_item != it)
{
wd->selected_item = it;
_selected_item_indicate(wd->selected_item);
}
if (it->func) it->func((void *)it->base.data, WIDGET(it), it);
}
static void
_scroller_move_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Evas_Coord x, y, w, h, bw;
Widget_Data *wd = data;
_check_string(wd);
elm_smart_scroller_child_pos_get(obj, &x, &y);
elm_smart_scroller_child_viewport_size_get(obj, &w, &h);
if (wd->round)
{
evas_object_geometry_get(wd->main_box, NULL, NULL, &bw, NULL);
if (x > ((w / wd->display_item_num) * (wd->item_count + (wd->display_item_num % 2))))
elm_smart_scroller_child_region_show(wd->scroller,
x - ((w / wd->display_item_num) * wd->item_count),
y, w, h);
else if (x < 0)
elm_smart_scroller_child_region_show(wd->scroller,
x + ((w / wd->display_item_num) * wd->item_count),
y, w, h);
}
}
static void
_scroller_stop_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Elm_Diskselector_Item *it;
Widget_Data *wd = data;
Evas_Coord x, w, ow;
Eina_List *l, *list;
if (wd->idler) return;
if (!wd->round)
list = wd->items;
else
list = wd->r_items;
evas_object_geometry_get(wd->scroller, NULL, NULL, &ow, NULL);
EINA_LIST_FOREACH(list, l, it)
{
evas_object_geometry_get(VIEW(it), &x, NULL, &w, NULL);
if (abs((int)(ow / 2 - (int)(x + w / 2))) < 10) break;
}
if (!it) return;
_select_item(it);
}
static Eina_Bool
_move_scroller(void *data)
{
Evas_Object *obj = data;
Widget_Data *wd;
Eina_List *list, *l;
Elm_Diskselector_Item *dit;
Evas_Coord y, w, h;
int i;
wd = elm_widget_data_get(obj);
if (!wd) return EINA_FALSE;
if (!wd->round)
{
i = 0;
list = wd->items;
}
else
{
i = 1;
list = wd->r_items;
}
EINA_LIST_FOREACH(list, l, dit)
{
if (wd->selected_item == dit)
break;
i++;
}
if (wd->round) i -= CEIL(wd->display_item_num);
if (!dit)
{
wd->selected_item =
(Elm_Diskselector_Item *) eina_list_nth(wd->items, 0);
return EINA_FALSE;
}
evas_object_geometry_get(wd->scroller, NULL, &y, &w, &h);
elm_smart_scroller_child_region_show(wd->scroller, w / wd->display_item_num * i, y, w, h);
_select_item(dit);
if (wd->idler)
{
ecore_idle_enterer_del(wd->idler);
wd->idler = NULL;
}
wd->init = EINA_TRUE;
_check_string(wd);
return EINA_TRUE;
}
static void
_round_item_del(Widget_Data *wd, Elm_Diskselector_Item *it)
{
if (!it) return;
elm_box_unpack(wd->main_box, VIEW(it));
wd->r_items = eina_list_remove(wd->r_items, it);
eina_stringshare_del(it->label);
elm_widget_item_free(it);
}
static void
_round_items_del(Widget_Data *wd)
{
Eina_List *l;
Elm_Diskselector_Item * it;
_round_item_del(wd, wd->last);
wd->last = NULL;
_round_item_del(wd, wd->s_last);
wd->s_last = NULL;
_round_item_del(wd, wd->second);
wd->second = NULL;
_round_item_del(wd, wd->first);
wd->first = NULL;
EINA_LIST_FOREACH(wd->under_items, l, it)
{
_round_item_del(wd, it);
}
wd->under_items = eina_list_free(wd->under_items);
EINA_LIST_FOREACH(wd->over_items, l, it)
{
_round_item_del(wd, it);
}
wd->over_items = eina_list_free(wd->over_items);
}
static void
_round_items_add(Widget_Data *wd)
{
Elm_Diskselector_Item *dit;
Elm_Diskselector_Item *it;
Elm_Diskselector_Item *temp_it;
int i = 0;
dit = it = eina_list_nth(wd->items, 0);
if (!dit) return;
if (!wd->first)
{
wd->first = _item_new(WIDGET(it), it->icon, it->label, it->func,
it->base.data);
wd->first->node = it->node;
wd->r_items = eina_list_append(wd->r_items, wd->first);
}
it = eina_list_nth(wd->items, 1);
if (!it)
it = dit;
if (!wd->second)
{
wd->second = _item_new(WIDGET(it), it->icon, it->label, it->func,
it->base.data);
wd->second->node = it->node;
wd->r_items = eina_list_append(wd->r_items, wd->second);
}
// if more than 3 itmes should be displayed
for (i = 2; i < CEIL(wd->display_item_num); i++)
{
it = eina_list_nth(wd->items, i);
if (!it) it = dit;
temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
wd->over_items = eina_list_append(wd->over_items, temp_it);
wd->r_items = eina_list_append(wd->r_items, temp_it);
}
it = eina_list_nth(wd->items, wd->item_count - 1);
if (!it)
it = dit;
if (!wd->last)
{
wd->last = _item_new(WIDGET(it), it->icon, it->label, it->func,
it->base.data);
wd->last->node = it->node;
wd->r_items = eina_list_prepend(wd->r_items, wd->last);
}
it = eina_list_nth(wd->items, wd->item_count - 2);
if (!it)
it = dit;
if (!wd->s_last)
{
wd->s_last = _item_new(WIDGET(it), it->icon, it->label, it->func,
it->base.data);
wd->s_last->node = it->node;
wd->r_items = eina_list_prepend(wd->r_items, wd->s_last);
}
// if more than 3 itmes should be displayed
for (i = 3; i <= CEIL(wd->display_item_num); i++)
{
it = eina_list_nth(wd->items, wd->item_count - i);
if (!it) it = dit;
temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
wd->under_items = eina_list_append(wd->under_items, temp_it);
wd->r_items = eina_list_prepend(wd->r_items, temp_it);
}
}
static void
_item_icon_set(Elm_Diskselector_Item *it, Evas_Object *icon)
{
if (it->icon == icon) return;
if (it->icon)
evas_object_del(it->icon);
it->icon = icon;
if (VIEW(it))
{
evas_object_size_hint_min_set(it->icon, 24, 24);
evas_object_size_hint_max_set(it->icon, 40, 40);
edje_object_part_swallow(VIEW(it), "elm.swallow.icon", it->icon);
evas_object_show(it->icon);
elm_widget_sub_object_add(WIDGET(it), it->icon);
}
}
static void
_check_identical_item(Elm_Diskselector_Item *it, Evas_Object *icon)
{
Widget_Data *wd;
Elm_Diskselector_Item *dit;
Eina_List *l;
int idx = 0;
int ic = 0;
int ac = 0;
wd = elm_widget_data_get(WIDGET(it));
if (!wd) return;
if (wd->round)
{
// Get index from indentical item from round items
EINA_LIST_FOREACH(wd->r_items, l, dit)
{
if (it == dit) break;
idx++;
}
// No item to match
ic = eina_list_count(wd->r_items);
if (idx >= ic) return;
dit = NULL;
// Number of added items: CEIL(wd->display_item_num)
ac = CEIL(wd->display_item_num);
if (((idx >= 0) && (idx < ac)) ||
((idx >= ac) && (idx < (2 * ac))))
{
// Selected item: under, low region
dit = eina_list_nth(wd->r_items,
idx + ic - (2 * ac));
}
else if (((idx >= (ic - ac)) && (idx < ic)) ||
((idx >= (ic - (2 * ac))) && (idx < ic - ac)))
{
// Selected item: over, high region
dit = eina_list_nth(wd->r_items,
idx - ic + (2 * ac));
}
if(dit) _item_icon_set(dit, icon);
_sizing_eval(wd->self);
}
}
static void
_item_text_set_hook(Elm_Object_Item *it, const char *part, const char *label)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
Elm_Diskselector_Item *item;
if (part && strcmp(part, "default")) return;
item = (Elm_Diskselector_Item *) it;
eina_stringshare_replace(&item->label, label);
edje_object_part_text_set(VIEW(item), "elm.text", item->label);
}
static const char *
_item_text_get_hook(const Elm_Object_Item *it, const char *part)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
if (part && strcmp(part, "default")) return NULL;
return ((Elm_Diskselector_Item *) it)->label;
}
static void
_item_content_set_hook(Elm_Object_Item *it,
const char *part,
Evas_Object *content)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
if (part && strcmp(part, "icon")) return;
_item_icon_set((Elm_Diskselector_Item *) it, content);
_check_identical_item((Elm_Diskselector_Item *) it, content);
}
static Evas_Object *
_item_content_get_hook(const Elm_Object_Item *it, const char *part)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
if (part && strcmp(part, "icon")) return NULL;
return ((Elm_Diskselector_Item *) it)->icon;
}
EAPI Evas_Object *
elm_diskselector_add(Evas_Object *parent)
{
Evas *e;
Evas_Object *obj;
Widget_Data *wd;
ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
ELM_SET_WIDTYPE(widtype, "diskselector");
elm_widget_type_set(obj, "diskselector");
elm_widget_sub_object_add(parent, obj);
elm_widget_data_set(obj, wd);
elm_widget_del_hook_set(obj, _del_hook);
elm_widget_del_pre_hook_set(obj, _del_pre_hook);
elm_widget_theme_hook_set(obj, _theme_hook);
elm_widget_can_focus_set(obj, EINA_TRUE);
elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
elm_widget_event_hook_set(obj, _event_hook);
wd->self = obj;
wd->item_count = 0;
wd->round = EINA_FALSE;
wd->init = EINA_FALSE;
wd->len_side = 3;
wd->display_item_num_by_api = EINA_FALSE;
wd->scroller = elm_smart_scroller_add(e);
elm_smart_scroller_widget_set(wd->scroller, obj);
_theme_hook(obj);
elm_widget_resize_object_set(obj, wd->scroller);
elm_smart_scroller_policy_set(wd->scroller, ELM_SMART_SCROLLER_POLICY_OFF,
ELM_SMART_SCROLLER_POLICY_OFF);
elm_smart_scroller_bounce_allow_set(wd->scroller, EINA_TRUE, EINA_FALSE);
evas_object_smart_callback_add(wd->scroller, "scroll", _scroller_move_cb,
wd);
evas_object_smart_callback_add(wd->scroller, "animate,stop",
_scroller_stop_cb, wd);
_elm_theme_object_set(obj, wd->scroller, "diskselector", "base",
"default");
evas_object_event_callback_add(wd->scroller, EVAS_CALLBACK_RESIZE,
_diskselector_object_resize, obj);
wd->main_box = elm_box_add(parent);
elm_box_horizontal_set(wd->main_box, EINA_TRUE);
elm_box_homogeneous_set(wd->main_box, EINA_TRUE);
evas_object_size_hint_weight_set(wd->main_box, EVAS_HINT_EXPAND,
EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(wd->main_box, EVAS_HINT_FILL,
EVAS_HINT_FILL);
_elm_theme_object_set(obj, wd->main_box, "diskselector", "base",
"default");
elm_widget_sub_object_add(obj, wd->main_box);
elm_smart_scroller_child_set(wd->scroller, wd->main_box);
wd->left_blank = edje_object_add(evas_object_evas_get(obj));
_elm_theme_object_set(obj, wd->left_blank, "diskselector", "item",
"default");
evas_object_size_hint_weight_set(wd->left_blank, EVAS_HINT_EXPAND,
EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(wd->left_blank, EVAS_HINT_FILL,
EVAS_HINT_FILL);
elm_box_pack_end(wd->main_box, wd->left_blank);
evas_object_show(wd->left_blank);
wd->right_blank = edje_object_add(evas_object_evas_get(obj));
_elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
"default");
evas_object_size_hint_weight_set(wd->right_blank, EVAS_HINT_EXPAND,
EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(wd->right_blank, EVAS_HINT_FILL,
EVAS_HINT_FILL);
elm_box_pack_end(wd->main_box, wd->right_blank);
evas_object_show(wd->right_blank);
_theme_data_get(wd);
evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
evas_object_smart_callbacks_descriptions_set(obj, _signals);
_sizing_eval(obj);
return obj;
}
EAPI Eina_Bool
elm_diskselector_round_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return EINA_FALSE;
return wd->round;
}
EAPI void
elm_diskselector_round_set(Evas_Object * obj, Eina_Bool round)
{
Eina_List *elist;
Elm_Diskselector_Item *it;
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (wd->round == round)
return;
wd->round = round;
if (round)
{
wd->r_items = eina_list_clone(wd->items);
elm_box_unpack(wd->main_box, wd->left_blank);
evas_object_hide(wd->left_blank);
elm_box_unpack(wd->main_box, wd->right_blank);
evas_object_hide(wd->right_blank);
if (!wd->items)
return;
_round_items_add(wd);
if (wd->last)
elm_box_pack_start(wd->main_box, wd->VIEW(last));
if (wd->s_last)
elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
// if more than 3 items should be displayed
EINA_LIST_FOREACH(wd->under_items, elist, it)
elm_box_pack_start(wd->main_box, VIEW(it));
if (wd->first)
elm_box_pack_end(wd->main_box, wd->VIEW(first));
if (wd->second)
elm_box_pack_end(wd->main_box, wd->VIEW(second));
// if more than 3 items should be displayed
EINA_LIST_FOREACH(wd->over_items, elist, it)
elm_box_pack_end(wd->main_box, VIEW(it));
}
else
{
_round_items_del(wd);
elm_box_pack_start(wd->main_box, wd->left_blank);
elm_box_pack_end(wd->main_box, wd->right_blank);
eina_list_free(wd->r_items);
wd->r_items = NULL;
}
_selected_item_indicate(wd->selected_item);
_sizing_eval(obj);
}
EAPI int
elm_diskselector_side_label_length_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) 0;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return 0;
return wd->len_side;
}
EAPI void
elm_diskselector_side_label_length_set(Evas_Object *obj, int len)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
wd->len_side = len;
}
EAPI void
elm_diskselector_side_label_lenght_set(Evas_Object *obj, int len)
{
return elm_diskselector_side_label_length_set(obj, len);
}
EAPI int
elm_diskselector_side_label_lenght_get(const Evas_Object *obj)
{
return elm_diskselector_side_label_length_get(obj);
}
EAPI void
elm_diskselector_bounce_set(Evas_Object *obj, Eina_Bool h_bounce, Eina_Bool v_bounce)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (wd->scroller)
elm_smart_scroller_bounce_allow_set(wd->scroller, h_bounce, v_bounce);
}
EAPI void
elm_diskselector_bounce_get(const Evas_Object *obj, Eina_Bool *h_bounce, Eina_Bool *v_bounce)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
elm_smart_scroller_bounce_allow_get(wd->scroller, h_bounce, v_bounce);
}
EAPI void
elm_diskselector_scroller_policy_get(const Evas_Object *obj, Elm_Scroller_Policy *policy_h, Elm_Scroller_Policy *policy_v)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Elm_Smart_Scroller_Policy s_policy_h, s_policy_v;
Widget_Data *wd = elm_widget_data_get(obj);
if ((!wd) || (!wd->scroller)) return;
elm_smart_scroller_policy_get(wd->scroller, &s_policy_h, &s_policy_v);
*policy_h = (Elm_Scroller_Policy) s_policy_h;
*policy_v = (Elm_Scroller_Policy) s_policy_v;
}
EAPI void
elm_diskselector_scroller_policy_set(Evas_Object *obj, Elm_Scroller_Policy policy_h, Elm_Scroller_Policy policy_v)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if ((!wd) || (!wd->scroller)) return;
if ((policy_h >= ELM_SCROLLER_POLICY_LAST) ||
(policy_v >= ELM_SCROLLER_POLICY_LAST))
return;
elm_smart_scroller_policy_set(wd->scroller, policy_h, policy_v);
}
EAPI void
elm_diskselector_clear(Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
Elm_Diskselector_Item *it;
if (!wd) return;
if (!wd->items) return;
wd->selected_item = NULL;
EINA_LIST_FREE(wd->items, it)
{
_item_del(it);
elm_widget_item_free(it);
}
_round_items_del(wd);
_sizing_eval(obj);
}
EAPI const Eina_List *
elm_diskselector_items_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return NULL;
return wd->items;
}
EAPI Elm_Object_Item *
elm_diskselector_item_append(Evas_Object *obj, const char *label, Evas_Object *icon, Evas_Smart_Cb func, const void *data)
{
Elm_Diskselector_Item *it;
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return NULL;
it = _item_new(obj, icon, label, func, data);
wd->items = eina_list_append(wd->items, it);
it->node = eina_list_last(wd->items);
wd->item_count++;
if (wd->round)
{
_round_items_del(wd);
wd->r_items = eina_list_append(wd->r_items, it);
_round_items_add(wd);
if (wd->last)
elm_box_pack_start(wd->main_box, wd->VIEW(last));
if (wd->s_last)
elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
elm_box_pack_end(wd->main_box, VIEW(it));
if (wd->first)
elm_box_pack_end(wd->main_box, wd->VIEW(first));
if (wd->second)
elm_box_pack_end(wd->main_box, wd->VIEW(second));
}
else
{
elm_box_unpack(wd->main_box, wd->right_blank);
elm_box_pack_end(wd->main_box, VIEW(it));
elm_box_pack_end(wd->main_box, wd->right_blank);
}
if (!wd->selected_item)
wd->selected_item = it;
if (!wd->idler)
wd->idler = ecore_idle_enterer_before_add(_move_scroller, obj);
_sizing_eval(obj);
return (Elm_Object_Item *) it;
}
EAPI void
elm_diskselector_item_del(Elm_Object_Item * it)
{
elm_object_item_del(it);
}
EAPI const char *
elm_diskselector_item_label_get(const Elm_Object_Item * it)
{
return _item_text_get_hook(it, NULL);
}
EAPI void
elm_diskselector_item_label_set(Elm_Object_Item * it, const char *label)
{
_item_text_set_hook(it, NULL, label);
}
EAPI Elm_Object_Item *
elm_diskselector_selected_item_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return NULL;
return (Elm_Object_Item *) wd->selected_item;
}
EAPI void
elm_diskselector_item_selected_set(Elm_Object_Item *it, Eina_Bool selected)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
Widget_Data *wd;
Elm_Diskselector_Item *item = (Elm_Diskselector_Item *) it;
wd = elm_widget_data_get(WIDGET(item));
if (!wd) return;
if ((wd->selected_item == item) && (selected))
return;
if ((wd->selected_item == item) && (!selected))
wd->selected_item = eina_list_data_get(wd->items);
else
{
wd->selected_item = item;
_selected_item_indicate(wd->selected_item);
}
if (!wd->idler)
wd->idler = ecore_idle_enterer_before_add(_move_scroller, WIDGET(item));
}
EAPI Eina_Bool
elm_diskselector_item_selected_get(const Elm_Object_Item *it)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it, EINA_FALSE);
Widget_Data *wd = elm_widget_data_get(WIDGET(it));
if (!wd) return EINA_FALSE;
return (wd->selected_item == ((Elm_Diskselector_Item *) it));
}
EAPI void
elm_diskselector_item_del_cb_set(Elm_Object_Item *it, Evas_Smart_Cb func)
{
elm_object_item_del_cb_set(it, func);
}
EAPI void *
elm_diskselector_item_data_get(const Elm_Object_Item *it)
{
return elm_object_item_data_get(it);
}
EAPI Evas_Object *
elm_diskselector_item_icon_get(const Elm_Object_Item *it)
{
return _item_content_get_hook(it, NULL);
}
EAPI void
elm_diskselector_item_icon_set(Elm_Object_Item *it, Evas_Object *icon)
{
_item_content_set_hook(it, NULL, icon);
}
EAPI Elm_Object_Item *
elm_diskselector_item_prev_get(const Elm_Object_Item *it)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
Elm_Diskselector_Item *item = (Elm_Diskselector_Item *) it;
if (item->node->prev) return item->node->prev->data;
else return NULL;
}
EAPI Elm_Object_Item *
elm_diskselector_item_next_get(const Elm_Object_Item *it)
{
ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
Elm_Diskselector_Item *item = (Elm_Diskselector_Item *) it;
if (item->node->next) return item->node->next->data;
else return NULL;
}
EAPI Elm_Object_Item *
elm_diskselector_first_item_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd || !wd->items) return NULL;
return eina_list_data_get(wd->items);
}
EAPI Elm_Object_Item *
elm_diskselector_last_item_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd || !wd->items) return NULL;
return eina_list_data_get(eina_list_last(wd->items));
}
EAPI void
elm_diskselector_item_tooltip_text_set(Elm_Object_Item *it, const char *text)
{
elm_object_item_tooltip_text_set(it, text);
}
EAPI void
elm_diskselector_item_tooltip_content_cb_set(Elm_Object_Item *it, Elm_Tooltip_Item_Content_Cb func, const void *data, Evas_Smart_Cb del_cb)
{
elm_object_item_tooltip_content_cb_set(it, func, data, del_cb);
}
EAPI void
elm_diskselector_item_tooltip_unset(Elm_Object_Item *it)
{
elm_object_item_tooltip_unset(it);
}
EAPI void
elm_diskselector_item_tooltip_style_set(Elm_Object_Item *it, const char *style)
{
elm_object_item_tooltip_style_set(it, style);
}
EAPI const char *
elm_diskselector_item_tooltip_style_get(const Elm_Object_Item *it)
{
return elm_object_item_tooltip_style_get(it);
}
EAPI void
elm_diskselector_item_cursor_set(Elm_Object_Item *it, const char *cursor)
{
elm_object_item_cursor_set(it, cursor);
}
EAPI const char *
elm_diskselector_item_cursor_get(const Elm_Object_Item *it)
{
return elm_object_item_cursor_get(it);
}
EAPI void
elm_diskselector_item_cursor_unset(Elm_Object_Item *it)
{
elm_object_item_cursor_unset(it);
}
EAPI void
elm_diskselector_item_cursor_style_set(Elm_Object_Item *it, const char *style)
{
elm_object_item_cursor_style_set(it, style);
}
EAPI const char *
elm_diskselector_item_cursor_style_get(const Elm_Object_Item *it)
{
return elm_object_item_cursor_style_get(it);
}
EAPI void
elm_diskselector_item_cursor_engine_only_set(Elm_Object_Item *it, Eina_Bool engine_only)
{
elm_object_item_cursor_engine_only_set(it, engine_only);
}
EAPI Eina_Bool
elm_diskselector_item_cursor_engine_only_get(const Elm_Object_Item *it)
{
return elm_object_item_cursor_engine_only_get(it);
}
EAPI void
elm_diskselector_display_item_num_set(Evas_Object *obj, int num)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (num < DISPLAY_ITEM_NUM_MIN) num = DISPLAY_ITEM_NUM_MIN;
wd->display_item_num = num;
wd->display_item_num_by_api = EINA_TRUE;
}
EAPI int
elm_diskselector_display_item_num_get(const Evas_Object *item)
{
ELM_CHECK_WIDTYPE(item, widtype) (-1);
Widget_Data *wd = elm_widget_data_get(item);
if (!wd) return -1;
return wd->display_item_num;
}
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