box_example_02.c
//Compile with:
//gcc -g box_example_02.c -o box_example_02 `pkg-config --cflags --libs elementary`
#include <Elementary.h>
typedef struct
{
Eina_List *transitions;
Evas_Object *box;
Evas_Object_Box_Layout last_layout;
} Transitions_Data;
static void
_add_cb(void *data, Evas_Object *obj, void *ev)
{
Evas_Object *btn;
Eina_List *children;
Transitions_Data *tdata = data;
btn = elm_button_add(tdata->box);
elm_object_text_set(btn, "I do nothing");
children = (Eina_List *)elm_box_children_get(tdata->box);
if (children)
{
elm_box_pack_after(tdata->box, btn, (Evas_Object *)children->data);
eina_list_free(children);
}
else
elm_box_pack_end(tdata->box, btn);
evas_object_show(btn);
}
static void
_clear_cb(void *data, Evas_Object *obj, void *ev)
{
Transitions_Data *tdata = data;
elm_box_clear(tdata->box);
}
static void
_unpack_cb(void *data, Evas_Object *obj, void *ev)
{
Transitions_Data *tdata = data;
elm_box_unpack(tdata->box, obj);
evas_object_move(obj, 0, 50);
evas_object_color_set(obj, 128, 64, 0, 128);
}
static void
_test_box_transition_change(void *data)
{
Transitions_Data *tdata = data;
Elm_Box_Transition *layout_data;
Evas_Object_Box_Layout next_layout;
if (!data) return;
next_layout = eina_list_data_get(tdata->transitions);
layout_data = elm_box_transition_new(2.0, tdata->last_layout,
NULL, NULL, next_layout, NULL, NULL,
_test_box_transition_change, tdata);
elm_box_layout_set(tdata->box, elm_box_layout_transition, layout_data,
elm_box_transition_free);
tdata->last_layout = next_layout;
tdata->transitions = eina_list_demote_list(tdata->transitions,
tdata->transitions);
}
EAPI_MAIN int
elm_main(int argc, char *argv[])
{
Evas_Object *win, *bigbox, *bx, *bt;
static Transitions_Data tdata = {
.transitions = NULL,
.box = NULL,
.last_layout = NULL
};
elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
win = elm_win_util_standard_add("box-transition", "Box Transition");
elm_win_autodel_set(win, EINA_TRUE);
bigbox = elm_box_add(win);
evas_object_size_hint_weight_set(bigbox, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_win_resize_object_add(win, bigbox);
evas_object_show(bigbox);
bx = elm_box_add(win);
elm_box_horizontal_set(bx, EINA_TRUE);
elm_box_pack_end(bigbox, bx);
evas_object_show(bx);
bt = elm_button_add(win);
elm_object_text_set(bt, "Add");
elm_box_pack_end(bx, bt);
evas_object_show(bt);
evas_object_smart_callback_add(bt, "clicked", _add_cb, &tdata);
bt = elm_button_add(win);
elm_object_text_set(bt, "Clear");
elm_box_pack_end(bx, bt);
evas_object_show(bt);
evas_object_smart_callback_add(bt, "clicked", _clear_cb, &tdata);
bx = elm_box_add(win);
evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(bx, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_box_pack_end(bigbox, bx);
evas_object_show(bx);
bt = elm_button_add(win);
elm_object_text_set(bt, "Button 1");
evas_object_smart_callback_add(bt, "clicked", _unpack_cb, &tdata);
evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_box_pack_end(bx, bt);
evas_object_show(bt);
bt = elm_button_add(win);
elm_object_text_set(bt, "Button 2");
evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0.0);
evas_object_size_hint_align_set(bt, 1.0, 0.5);
evas_object_smart_callback_add(bt, "clicked", _unpack_cb, &tdata);
elm_box_pack_end(bx, bt);
evas_object_show(bt);
bt = elm_button_add(win);
elm_object_text_set(bt, "Button 3");
evas_object_smart_callback_add(bt, "clicked", _unpack_cb, &tdata);
elm_box_pack_end(bx, bt);
evas_object_show(bt);
tdata.box = bx;
tdata.last_layout = evas_object_box_layout_horizontal;
tdata.transitions = eina_list_append(tdata.transitions,
evas_object_box_layout_vertical);
tdata.transitions = eina_list_append(tdata.transitions,
evas_object_box_layout_horizontal);
tdata.transitions = eina_list_append(tdata.transitions,
evas_object_box_layout_stack);
tdata.transitions = eina_list_append(tdata.transitions,
evas_object_box_layout_homogeneous_vertical);
tdata.transitions = eina_list_append(tdata.transitions,
evas_object_box_layout_homogeneous_horizontal);
tdata.transitions = eina_list_append(tdata.transitions,
evas_object_box_layout_flow_vertical);
tdata.transitions = eina_list_append(tdata.transitions,
evas_object_box_layout_flow_horizontal);
tdata.transitions = eina_list_append(tdata.transitions,
evas_object_box_layout_stack);
elm_box_layout_set(bx, evas_object_box_layout_horizontal, NULL, NULL);
_test_box_transition_change(&tdata);
evas_object_resize(win, 300, 320);
evas_object_show(win);
elm_run();
return 0;
}
ELM_MAIN()