Gengrid example

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Gengrid example
#include <Elementary.h>
typedef struct _Example_Item
{
const char *path;
} Example_Item;
static const char *imgs[9] =
{
"panel_01.jpg",
"plant_01.jpg",
"rock_01.jpg",
"rock_02.jpg",
"sky_01.jpg",
"sky_02.jpg",
"sky_03.jpg",
"sky_04.jpg",
"wood_01.jpg",
};
static Elm_Gengrid_Item_Class *gic = NULL;
static Evas_Object *before_bt, *after_bt;
/* change layouting mode */
static void
_horizontal_grid(void *data,
Evas_Object *obj,
void *event_info)
{
Evas_Object *grid = data;
elm_gengrid_horizontal_set(grid, elm_check_state_get(obj));
}
/* "always select" callback */
static void
_always_select_change(void *data,
Evas_Object *obj,
void *event_info)
{
Evas_Object *grid = data;
Eina_Bool always = elm_check_state_get(obj);
if (always)
elm_gengrid_select_mode_set(grid, ELM_OBJECT_SELECT_MODE_ALWAYS);
else
elm_gengrid_select_mode_set(grid, ELM_OBJECT_SELECT_MODE_DEFAULT);
fprintf(stdout, "\"Always select\" mode for gengrid items is now %s\n",
always ? "on" : "off");
}
/* "bouncing mode" callback */
static void
_bouncing_change(void *data,
Evas_Object *obj,
void *event_info)
{
Evas_Object *grid = data;
Eina_Bool bounce = elm_check_state_get(obj);
elm_scroller_bounce_set(grid, bounce, bounce);
fprintf(stdout, "Bouncing effect for gengrid is now %s\n",
bounce ? "on" : "off");
}
/* multi-selection callback */
static void
_multi_change(void *data,
Evas_Object *obj,
void *event_info)
{
Evas_Object *grid = data;
Eina_Bool multi = elm_check_state_get(obj);
elm_gengrid_multi_select_set(grid, multi);
fprintf(stdout, "Multi-selection for gengrid is now %s\n",
multi ? "on" : "off");
elm_object_disabled_set(before_bt, multi);
elm_object_disabled_set(after_bt, multi);
if (!multi)
{
Elm_Object_Item *gg_it;
const Eina_List *selected = elm_gengrid_selected_items_get(grid), *l;
EINA_LIST_FOREACH(selected, l, gg_it)
elm_gengrid_item_selected_set(gg_it, EINA_FALSE);
}
}
/* no selection callback */
static void
_no_sel_change(void *data,
Evas_Object *obj,
void *event_info)
{
Evas_Object *grid = data;
Eina_Bool no_sel = elm_check_state_get(obj);
if (no_sel)
elm_gengrid_select_mode_set(grid, ELM_OBJECT_SELECT_MODE_NONE);
else
elm_gengrid_select_mode_set(grid, ELM_OBJECT_SELECT_MODE_DEFAULT);
fprintf(stdout, "Selection for gengrid items is now %s\n",
no_sel ? "disabled" : "enabled");
}
/* item selection callback */
static void
_grid_sel(void *data,
Evas_Object *obj,
void *event_info)
{
unsigned int x, y;
Example_Item *it = elm_object_item_data_get(event_info);
elm_gengrid_item_pos_get(event_info, &x, &y);
fprintf(stdout, "Item [%p], with data [%p], path %s, at position (%d, %d),"
" has been selected\n", event_info, data, it->path, x, y);
}
/* new item with random path */
static Example_Item *
_item_new(void)
{
Example_Item *it;
it = malloc(sizeof(*it));
it->path = eina_stringshare_add(imgs[rand() % (sizeof(imgs) /
sizeof(imgs[0]))]);
return it;
}
/* "insert before" callback */
static void
_before_bt_clicked(void *data,
Evas_Object *obj,
void *event_info)
{
Example_Item *it;
Evas_Object *grid = data;
Elm_Object_Item *sel;
sel = elm_gengrid_selected_item_get(grid);
if (!sel)
return;
it = _item_new();
elm_gengrid_item_insert_before(grid, gic, it, sel, _grid_sel, NULL);
}
/* "insert after" callback */
static void
_after_bt_clicked(void *data,
Evas_Object *obj,
void *event_info)
{
Example_Item *it;
Evas_Object *grid = data;
Elm_Object_Item *sel;
sel = elm_gengrid_selected_item_get(grid);
if (!sel)
return;
it = _item_new();
elm_gengrid_item_insert_after(grid, gic, it, sel, _grid_sel, NULL);
}
/* prepend an item */
static void
_prepend_bt_clicked(void *data,
Evas_Object *obj,
void *event_info)
{
Example_Item *it;
Evas_Object *grid = data;
it = _item_new();
elm_gengrid_item_prepend(grid, gic, it, _grid_sel, NULL);
}
/* append an item */
static void
_append_bt_clicked(void *data,
Evas_Object *obj,
void *event_info)
{
Evas_Object *grid = data;
Example_Item *it = _item_new();
elm_gengrid_item_append(grid, gic, it, _grid_sel, NULL);
}
/* delete items */
static void
_clear_cb(void *data,
Evas_Object *obj,
void *event_info)
{
elm_gengrid_clear(data);
fprintf(stdout, "Clearing the grid!\n");
}
/* bring in 1st item */
static void
_bring_1st_clicked(void *data,
Evas_Object *obj,
void *event_info)
{
Elm_Object_Item *gg_it = elm_gengrid_first_item_get(data);
if (!gg_it) return;
elm_gengrid_item_bring_in(gg_it, ELM_GENGRID_ITEM_SCROLLTO_IN);
}
/* show last item */
static void
_show_last_clicked(void *data,
Evas_Object *obj,
void *event_info)
{
Elm_Object_Item *gg_it = elm_gengrid_last_item_get(data);
if (!gg_it) return;
elm_gengrid_item_show(gg_it, ELM_GENGRID_ITEM_SCROLLTO_IN);
}
/* disable selected item */
static void
_toggle_disabled_cb(void *data,
Evas_Object *obj,
void *event_info)
{
Elm_Object_Item *gg_it = elm_gengrid_selected_item_get(data);
if (!gg_it) return;
elm_gengrid_item_selected_set(gg_it, EINA_FALSE);
elm_object_item_disabled_set(gg_it, EINA_TRUE);
}
/* change items' size */
static void
_size_changed(void *data,
Evas_Object *obj,
void *event_info)
{
Evas_Object *grid = data;
int size = elm_spinner_value_get(obj);
elm_gengrid_item_size_set(grid, size, size);
}
/* item double click callback */
static void
_double_click(void *data,
Evas_Object *obj,
void *event_info)
{
fprintf(stdout, "Double click on item with handle %p\n", event_info);
}
/* item long press callback */
static void
_long_pressed(void *data,
Evas_Object *obj,
void *event_info)
{
fprintf(stdout, "Long press on item with handle %p\n", event_info);
}
/* label fetching callback */
static char *
_grid_label_get(void *data,
Evas_Object *obj,
const char *part)
{
const Example_Item *it = data;
char buf[256];
snprintf(buf, sizeof(buf), "Photo %s", it->path);
return strdup(buf);
}
/* icon fetching callback */
static Evas_Object *
_grid_content_get(void *data,
Evas_Object *obj,
const char *part)
{
const Example_Item *it = data;
if (!strcmp(part, "elm.swallow.icon"))
{
Evas_Object *icon = elm_bg_add(obj);
char buf[PATH_MAX];
snprintf(buf, sizeof(buf), "%s/images/%s", elm_app_data_dir_get(),
it->path);
elm_bg_file_set(icon, buf, NULL);
evas_object_size_hint_aspect_set(icon, EVAS_ASPECT_CONTROL_VERTICAL, 1,
1);
evas_object_show(icon);
return icon;
}
else if (!strcmp(part, "elm.swallow.end"))
{
Evas_Object *ck;
ck = elm_check_add(obj);
evas_object_propagate_events_set(ck, EINA_FALSE);
evas_object_show(ck);
return ck;
}
return NULL;
}
/* state fetching callback */
static Eina_Bool
_grid_state_get(void *data,
Evas_Object *obj,
const char *part)
{
return EINA_FALSE;
}
/* deletion callback */
static void
_grid_del(void *data,
Evas_Object *obj)
{
Example_Item *it = data;
eina_stringshare_del(it->path);
free(it);
}
/* scrolling animation stopped callback */
static void
_grid_scroll_stopped_cb(void *data,
Evas_Object *obj,
void *event_info)
{
int h_pagenumber = 0, v_pagenumber = 0;
elm_scroller_current_page_get(obj, &h_pagenumber, &v_pagenumber);
fprintf(stdout, "Grid current horiz page is %d, vert page is %d\n",
h_pagenumber, v_pagenumber);
}
/* items grid horizontal alignment change */
static void
_h_align_change_cb(void *data,
Evas_Object *obj,
void *event_info)
{
double v_align;
double val = elm_slider_value_get(obj);
elm_gengrid_align_get(data, NULL, &v_align);
fprintf(stdout, "Setting horizontal alignment to %f\n", val);
elm_gengrid_align_set(data, val, v_align);
}
static void
_v_align_change_cb(void *data,
Evas_Object *obj,
void *event_info)
{
double h_align;
double val = elm_slider_value_get(obj);
elm_gengrid_align_get(data, &h_align, NULL);
fprintf(stdout, "Setting vertical alignment to %f\n", val);
elm_gengrid_align_set(data, h_align, val);
}
/* page relative size change */
static void
_page_change_cb(void *data,
Evas_Object *obj,
void *event_info)
{
double val = elm_slider_value_get(obj);
elm_scroller_page_relative_set(data, val, val);
fprintf(stdout, "Setting grid page's relative size to %f\n", val);
}
EAPI_MAIN int
elm_main(int argc,
char **argv)
{
Evas_Object *win, *grid, *bx, *hbx_1, *hbx_2, *hbx_3, *bt, *ck, *sl, *sp;
Eina_Bool bounce;
double h, v;
srand(time(NULL));
elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
elm_app_info_set(elm_main, "elementary", "images");
win = elm_win_util_standard_add("gengrid", "Generic Grid Example");
elm_win_autodel_set(win, EINA_TRUE);
bx = elm_box_add(win);
evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_win_resize_object_add(win, bx);
evas_object_show(bx);
grid = elm_gengrid_add(win);
elm_gengrid_item_size_set(grid, 150, 150);
evas_object_size_hint_weight_set(grid, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(grid, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_box_pack_end(bx, grid);
evas_object_smart_callback_add(grid, "clicked,double", _double_click, NULL);
evas_object_smart_callback_add(grid, "longpressed", _long_pressed, NULL);
evas_object_show(grid);
hbx_1 = elm_box_add(win);
evas_object_size_hint_weight_set(hbx_1, EVAS_HINT_EXPAND, 0.0);
elm_box_horizontal_set(hbx_1, EINA_TRUE);
elm_box_pack_end(bx, hbx_1);
evas_object_show(hbx_1);
bt = elm_button_add(win);
elm_object_text_set(bt, "Append");
evas_object_smart_callback_add(bt, "clicked", _append_bt_clicked, grid);
elm_box_pack_end(hbx_1, bt);
evas_object_show(bt);
bt = elm_button_add(win);
elm_object_text_set(bt, "Prepend");
evas_object_smart_callback_add(bt, "clicked", _prepend_bt_clicked, grid);
elm_box_pack_end(hbx_1, bt);
evas_object_show(bt);
before_bt = elm_button_add(win);
elm_object_text_set(before_bt, "Insert before");
evas_object_smart_callback_add(before_bt, "clicked", _before_bt_clicked,
grid);
elm_box_pack_end(hbx_1, before_bt);
evas_object_show(before_bt);
after_bt = elm_button_add(win);
elm_object_text_set(after_bt, "Insert after");
evas_object_smart_callback_add(after_bt, "clicked", _after_bt_clicked, grid);
elm_box_pack_end(hbx_1, after_bt);
evas_object_show(after_bt);
bt = elm_button_add(win);
elm_object_text_set(bt, "Clear");
evas_object_smart_callback_add(bt, "clicked", _clear_cb, grid);
elm_box_pack_end(hbx_1, bt);
evas_object_show(bt);
bt = elm_button_add(win);
elm_object_text_set(bt, "Bring in 1st");
evas_object_smart_callback_add(bt, "clicked", _bring_1st_clicked, grid);
elm_box_pack_end(hbx_1, bt);
evas_object_show(bt);
bt = elm_button_add(win);
elm_object_text_set(bt, "Show last");
evas_object_smart_callback_add(bt, "clicked", _show_last_clicked, grid);
elm_box_pack_end(hbx_1, bt);
evas_object_show(bt);
sp = elm_spinner_add(win);
elm_spinner_min_max_set(sp, 10, 1024);
elm_spinner_value_set(sp, 150);
elm_spinner_label_format_set(sp, "Item size: %.0f");
evas_object_smart_callback_add(sp, "changed", _size_changed, grid);
evas_object_size_hint_weight_set(sp, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_box_pack_end(hbx_1, sp);
evas_object_show(sp);
hbx_2 = elm_box_add(win);
evas_object_size_hint_weight_set(hbx_2, EVAS_HINT_EXPAND, 0.0);
elm_box_horizontal_set(hbx_2, EINA_TRUE);
elm_box_pack_end(bx, hbx_2);
evas_object_show(hbx_2);
bt = elm_button_add(win);
elm_object_text_set(bt, "Disable item");
evas_object_smart_callback_add(bt, "clicked", _toggle_disabled_cb, grid);
elm_box_pack_end(hbx_2, bt);
evas_object_show(bt);
ck = elm_check_add(win);
elm_object_text_set(ck, "Horizontal mode");
evas_object_smart_callback_add(ck, "changed", _horizontal_grid, grid);
elm_box_pack_end(hbx_2, ck);
evas_object_show(ck);
ck = elm_check_add(win);
elm_object_text_set(ck, "Always select");
evas_object_smart_callback_add(ck, "changed", _always_select_change, grid);
elm_box_pack_end(hbx_2, ck);
evas_object_show(ck);
ck = elm_check_add(win);
elm_scroller_bounce_get(grid, &bounce, NULL);
elm_object_text_set(ck, "Bouncing");
elm_check_state_set(ck, bounce);
evas_object_smart_callback_add(ck, "changed", _bouncing_change, grid);
elm_box_pack_end(hbx_2, ck);
evas_object_show(ck);
ck = elm_check_add(win);
elm_object_text_set(ck, "Multi-selection");
elm_check_state_set(ck, elm_gengrid_multi_select_get(grid));
evas_object_smart_callback_add(ck, "changed", _multi_change, grid);
elm_box_pack_end(hbx_2, ck);
evas_object_show(ck);
ck = elm_check_add(win);
elm_object_text_set(ck, "No selection");
evas_object_smart_callback_add(ck, "changed", _no_sel_change, grid);
elm_box_pack_end(hbx_2, ck);
evas_object_show(ck);
hbx_3 = elm_box_add(win);
evas_object_size_hint_weight_set(hbx_3, EVAS_HINT_EXPAND, 0.0);
elm_box_horizontal_set(hbx_3, EINA_TRUE);
elm_box_pack_end(bx, hbx_3);
evas_object_show(hbx_3);
elm_gengrid_align_get(grid, &h, &v);
evas_object_smart_callback_add(grid, "scroll,anim,stop", _grid_scroll_stopped_cb, NULL);
sl = elm_slider_add(win);
elm_object_text_set(sl, "Horiz. alignment");
elm_slider_span_size_set(sl, 100);
evas_object_size_hint_align_set(sl, 0.5, EVAS_HINT_FILL);
evas_object_size_hint_weight_set(sl, 0.0, EVAS_HINT_EXPAND);
elm_slider_indicator_format_set(sl, "%1.1f");
elm_slider_value_set(sl, h);
elm_box_pack_end(hbx_3, sl);
evas_object_show(sl);
evas_object_smart_callback_add(sl, "changed", _h_align_change_cb, grid);
sl = elm_slider_add(win);
elm_object_text_set(sl, "Vert. alignment");
elm_slider_span_size_set(sl, 100);
evas_object_size_hint_align_set(sl, 0.5, EVAS_HINT_FILL);
evas_object_size_hint_weight_set(sl, 0.0, EVAS_HINT_EXPAND);
elm_slider_indicator_format_set(sl, "%1.1f");
elm_slider_value_set(sl, v);
elm_box_pack_end(hbx_3, sl);
evas_object_show(sl);
evas_object_smart_callback_add(sl, "changed", _v_align_change_cb, grid);
elm_gengrid_align_get(grid, &h, &v);
sl = elm_slider_add(win);
elm_object_text_set(sl, "Page rel. size");
elm_slider_span_size_set(sl, 100);
evas_object_size_hint_align_set(sl, 0.5, EVAS_HINT_FILL);
evas_object_size_hint_weight_set(sl, 0.0, EVAS_HINT_EXPAND);
elm_slider_indicator_format_set(sl, "%1.1f");
elm_slider_value_set(sl, h);
elm_box_pack_end(hbx_3, sl);
evas_object_show(sl);
_page_change_cb(grid, sl, NULL);
evas_object_smart_callback_add(sl, "changed", _page_change_cb, grid);
if (!gic)
{
gic = elm_gengrid_item_class_new();
gic->item_style = "default";
gic->func.text_get = _grid_label_get;
gic->func.content_get = _grid_content_get;
gic->func.state_get = _grid_state_get;
gic->func.del = _grid_del;
} // we only create the first time its needed. we dont unref/free
_append_bt_clicked(grid, NULL, NULL);
_append_bt_clicked(grid, NULL, NULL);
_append_bt_clicked(grid, NULL, NULL);
evas_object_resize(win, 600, 600);
evas_object_show(win);
elm_run();
return 0;
}
ELM_MAIN()