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index_example_01.c: sample code internal refactoring. 

- avoid using unnecessary global variable.
- use common name for item variable, it.
- print out more useful messages on _active_set.
This commit is contained in:
Daniel Juyung Seo 2013-11-20 10:40:02 +09:00
parent 7e53ba272d
commit 674287da50
1 changed files with 40 additions and 62 deletions
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102
legacy/elementary/src/examples/index_example_01.c
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@ -12,22 +12,13 @@
#include <Elementary.h>
#include <assert.h>
struct example_data
{
Evas_Object *list, *index;
};
struct example_data d = {NULL, NULL};
static const char *dict[] = \
{
#include "dict.txt"
};
static void
_index_item_del(void *data,
Evas_Object *obj,
void *event_info)
_index_item_del(void *data, Evas_Object *obj, void *event_info)
{
fprintf(stdout, "Deleting index node (%s). Comparing index "
"item data reported via callback with the one returned by "
@ -39,55 +30,46 @@ _index_item_del(void *data,
/* delete an index item */
static void
_item_del(void *data,
Evas_Object *obj,
void *event_info)
_item_del(void *data, Evas_Object *obj, void *event_info)
{
Elm_Object_Item *iit = elm_index_selected_item_get(d.index, 0);
Elm_Object_Item *it = elm_index_selected_item_get(data, 0);
if (!iit) return;
if (!it) return;
fprintf(stdout, "Deleting last selected index item, which had letter"
" %s (pointing to %p)\n", elm_index_item_letter_get(iit),
elm_object_item_data_get(iit));
" %s (pointing to %p)\n", elm_index_item_letter_get(it),
elm_object_item_data_get(it));
elm_object_item_del(iit);
elm_index_level_go(d.index, 0);
elm_object_item_del(it);
elm_index_level_go(data, 0);
}
static void
_item_del_all(void *data,
Evas_Object *obj,
void *event_info)
_item_del_all(void *data, Evas_Object *obj, void *event_info)
{
elm_index_item_clear(d.index);
elm_index_level_go(d.index, 0);
elm_index_item_clear(data);
elm_index_level_go(data, 0);
}
static void
_active_set(void *data,
Evas_Object *obj,
void *event_info)
_active_set(void *data, Evas_Object *obj, void *event_info)
{
elm_index_autohide_disabled_set
(d.index, !elm_index_autohide_disabled_get(d.index));
Eina_Bool disabled = elm_index_autohide_disabled_get(data);
elm_index_autohide_disabled_set(data, !disabled);
fprintf(stdout, "Toggling index programmatically.\n");
fprintf(stdout, "Toggling index programmatically to %s.\n",
!disabled ? "On" : "Off");
}
/* "delay,changed" hook */
static void
_index_changed(void *data,
Evas_Object *obj,
void *event_info)
_index_changed(void *data, Evas_Object *obj, void *event_info)
{
elm_list_item_bring_in(elm_object_item_data_get(event_info));
}
static void
_index_selected(void *data,
Evas_Object *obj,
void *event_info)
_index_selected(void *data, Evas_Object *obj, void *event_info)
{
Elm_Object_Item *lit = event_info;
@ -98,10 +80,9 @@ _index_selected(void *data,
}
EAPI_MAIN int
elm_main(int argc,
char **argv)
elm_main(int argc, char **argv)
{
Evas_Object *win, *hbox, *vbox, *bt, *sep;
Evas_Object *win, *hbox, *vbox, *bt, *sep, *list, *id;
Elm_Object_Item *lit;
unsigned int i;
char curr = 0;
@ -110,28 +91,28 @@ elm_main(int argc,
win = elm_win_util_standard_add("index", "Index Example");
elm_win_autodel_set(win, EINA_TRUE);
evas_object_resize(win, 320, 600);
evas_object_show(win);
vbox = elm_box_add(win);
evas_object_size_hint_weight_set(vbox, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_win_resize_object_add(win, vbox);
evas_object_show(vbox);
d.list = elm_list_add(win);
evas_object_size_hint_weight_set(d.list, EVAS_HINT_EXPAND,
EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(d.list, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_show(d.list);
elm_box_pack_end(vbox, d.list);
list = elm_list_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);
evas_object_show(list);
elm_box_pack_end(vbox, list);
d.index = elm_index_add(win);
evas_object_size_hint_weight_set(d.index, EVAS_HINT_EXPAND,
EVAS_HINT_EXPAND);
elm_win_resize_object_add(win, d.index);
evas_object_show(d.index);
id = elm_index_add(win);
evas_object_size_hint_weight_set(id, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_win_resize_object_add(win, id);
evas_object_show(id);
for (i = 0; i < (sizeof(dict) / sizeof(dict[0])); i++)
{
lit = elm_list_item_append(d.list, dict[i], NULL, NULL, NULL, NULL);
lit = elm_list_item_append(list, dict[i], NULL, NULL, NULL, NULL);
if (curr != dict[i][0])
{
@ -142,20 +123,20 @@ elm_main(int argc,
/* indexing by first letters */
snprintf(buf, sizeof(buf), "%c", curr);
index_it = elm_index_item_append(d.index, buf, NULL, lit);
index_it = elm_index_item_append(id, buf, NULL, lit);
/* this is here just to demostrate the API call */
it = elm_index_item_find(d.index, lit);
it = elm_index_item_find(id, lit);
assert(it == index_it);
elm_object_item_del_cb_set(index_it, _index_item_del);
}
}
evas_object_smart_callback_add(d.index, "delay,changed", _index_changed,
evas_object_smart_callback_add(id, "delay,changed", _index_changed,
NULL);
evas_object_smart_callback_add(d.index, "selected", _index_selected, NULL);
elm_index_level_go(d.index, 0);
evas_object_smart_callback_add(id, "selected", _index_selected, NULL);
elm_index_level_go(id, 0);
/* attribute setting knobs */
sep = elm_separator_add(win);
@ -172,25 +153,22 @@ elm_main(int argc,
bt = elm_button_add(win);
elm_object_text_set(bt, "bring in index");
evas_object_smart_callback_add(bt, "clicked", _active_set, NULL);
evas_object_smart_callback_add(bt, "clicked", _active_set, id);
elm_box_pack_end(hbox, bt);
evas_object_show(bt);
bt = elm_button_add(win);
elm_object_text_set(bt, "delete last selected item");
evas_object_smart_callback_add(bt, "clicked", _item_del, NULL);
evas_object_smart_callback_add(bt, "clicked", _item_del, id);
elm_box_pack_end(hbox, bt);
evas_object_show(bt);
bt = elm_button_add(win);
elm_object_text_set(bt, "delete all items");
evas_object_smart_callback_add(bt, "clicked", _item_del_all, NULL);
evas_object_smart_callback_add(bt, "clicked", _item_del_all, id);
elm_box_pack_end(hbox, bt);
evas_object_show(bt);
evas_object_resize(win, 320, 600);
evas_object_show(win);
elm_run();
elm_shutdown();