efl

1
/**
2
 * Simple Elementary's <b>gengrid widget</b> example, illustrating its
3
 * usage and API.
4
 *
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 * See stdout/stderr for output. Compile with:
6
 *
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 * @verbatim
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 * gcc -g gengrid_example.c -o gengrid_example `pkg-config --cflags --libs elementary`
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 * @endverbatim
10
 */
11

12
#include <Elementary.h>
13

14
typedef struct _Example_Item
15
{
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   const char *path;
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} Example_Item;
18

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static const char *imgs[9] =
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{
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   "panel_01.jpg",
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   "plant_01.jpg",
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   "rock_01.jpg",
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   "rock_02.jpg",
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   "sky_01.jpg",
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   "sky_02.jpg",
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   "sky_03.jpg",
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   "sky_04.jpg",
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   "wood_01.jpg",
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};
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static Elm_Gengrid_Item_Class *gic = NULL;
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static Evas_Object *before_bt, *after_bt;
34

35
/* change layouting mode */
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static void
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_horizontal_grid(void        *data,
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                 Evas_Object *obj,
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                 void        *event_info EINA_UNUSED)
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{
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   Evas_Object *grid = data;
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43
   elm_gengrid_horizontal_set(grid, elm_check_state_get(obj));
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}
45

46
/* "always select" callback */
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static void
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_always_select_change(void        *data,
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                      Evas_Object *obj,
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                      void        *event_info EINA_UNUSED)
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{
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   Evas_Object *grid = data;
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   Eina_Bool always = elm_check_state_get(obj);
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55
   if (always)
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     elm_gengrid_select_mode_set(grid, ELM_OBJECT_SELECT_MODE_ALWAYS);
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   else
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     elm_gengrid_select_mode_set(grid, ELM_OBJECT_SELECT_MODE_DEFAULT);
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   printf("\"Always select\" mode for gengrid items is now %s\n",
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           always ? "on" : "off");
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}
63

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/* "bouncing mode" callback */
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static void
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_bouncing_change(void        *data,
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                 Evas_Object *obj,
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                 void        *event_info EINA_UNUSED)
69
{
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   Evas_Object *grid = data;
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   Eina_Bool bounce = elm_check_state_get(obj);
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   elm_scroller_bounce_set(grid, bounce, bounce);
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   printf("Bouncing effect for gengrid is now %s\n",
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           bounce ? "on" : "off");
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}
78

79
/* multi-selection callback */
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static void
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_multi_change(void        *data,
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              Evas_Object *obj,
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              void        *event_info EINA_UNUSED)
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{
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   Evas_Object *grid = data;
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   Eina_Bool multi = elm_check_state_get(obj);
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   elm_gengrid_multi_select_set(grid, multi);
89

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   printf("Multi-selection for gengrid is now %s\n",
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           multi ? "on" : "off");
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   elm_object_disabled_set(before_bt, multi);
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   elm_object_disabled_set(after_bt, multi);
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   if (!multi)
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     {
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        Elm_Object_Item *gg_it;
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        const Eina_List *selected = elm_gengrid_selected_items_get(grid), *l;
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        EINA_LIST_FOREACH(selected, l, gg_it)
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           elm_gengrid_item_selected_set(gg_it, EINA_FALSE);
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     }
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}
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/* no selection callback */
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static void
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_no_sel_change(void        *data,
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               Evas_Object *obj,
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               void        *event_info EINA_UNUSED)
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{
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   Evas_Object *grid = data;
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   Eina_Bool no_sel = elm_check_state_get(obj);
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114
   if (no_sel)
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     elm_gengrid_select_mode_set(grid, ELM_OBJECT_SELECT_MODE_NONE);
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   else
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     elm_gengrid_select_mode_set(grid, ELM_OBJECT_SELECT_MODE_DEFAULT);
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   printf("Selection for gengrid items is now %s\n",
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           no_sel ? "disabled" : "enabled");
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}
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/* item selection callback */
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static void
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_grid_sel(void        *data,
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          Evas_Object *obj EINA_UNUSED,
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          void        *event_info)
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{
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   unsigned int x, y;
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   Example_Item *it = elm_object_item_data_get(event_info);
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   elm_gengrid_item_pos_get(event_info, &x, &y);
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   printf("Item [%p], with data [%p], path %s, at position (%u, %u),"
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           " has been selected\n", event_info, data, it->path, x, y);
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}
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/* new item with random path */
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static Example_Item *
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_item_new(void)
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{
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   Example_Item *it;
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   it = malloc(sizeof(*it));
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   it->path = eina_stringshare_add(imgs[rand() % (sizeof(imgs) /
146
                                                  sizeof(imgs[0]))]);
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   return it;
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}
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/* "insert before" callback */
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static void
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_before_bt_clicked(void        *data,
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                   Evas_Object *obj EINA_UNUSED,
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                   void        *event_info EINA_UNUSED)
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{
156
   Example_Item *it;
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   Evas_Object *grid = data;
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   Elm_Object_Item *sel;
159

160
   sel = elm_gengrid_selected_item_get(grid);
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   if (!sel)
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     return;
163

164
   it = _item_new();
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   elm_gengrid_item_insert_before(grid, gic, it, sel, _grid_sel, NULL);
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}
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/* "insert after" callback */
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static void
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_after_bt_clicked(void        *data,
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                  Evas_Object *obj EINA_UNUSED,
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                  void        *event_info EINA_UNUSED)
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{
174
   Example_Item *it;
175
   Evas_Object *grid = data;
176
   Elm_Object_Item *sel;
177

178
   sel = elm_gengrid_selected_item_get(grid);
179
   if (!sel)
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     return;
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182
   it = _item_new();
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   elm_gengrid_item_insert_after(grid, gic, it, sel, _grid_sel, NULL);
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}
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/* prepend an item */
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static void
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_prepend_bt_clicked(void        *data,
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                    Evas_Object *obj EINA_UNUSED,
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                    void        *event_info EINA_UNUSED)
191
{
192
   Example_Item *it;
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   Evas_Object *grid = data;
194

195
   it = _item_new();
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   elm_gengrid_item_prepend(grid, gic, it, _grid_sel, NULL);
197
}
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199
/* append an item */
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static void
201
_append_bt_clicked(void        *data,
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                   Evas_Object *obj EINA_UNUSED,
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                   void        *event_info EINA_UNUSED)
204
{
205
   Evas_Object *grid = data;
206
   Example_Item *it = _item_new();
207

208
   elm_gengrid_item_append(grid, gic, it, _grid_sel, NULL);
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}
210

211
/* delete items */
212
static void
213
_clear_cb(void        *data,
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          Evas_Object *obj EINA_UNUSED,
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          void        *event_info EINA_UNUSED)
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{
217
   elm_gengrid_clear(data);
218

219
   printf("Clearing the grid!\n");
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}
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/* bring in 1st item */
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static void
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_bring_1st_clicked(void        *data,
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                   Evas_Object *obj EINA_UNUSED,
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                   void        *event_info EINA_UNUSED)
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{
228
   Elm_Object_Item *gg_it = elm_gengrid_first_item_get(data);
229

230
   if (!gg_it) return;
231

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   elm_gengrid_item_bring_in(gg_it, ELM_GENGRID_ITEM_SCROLLTO_IN);
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}
234

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/* show last item */
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static void
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_show_last_clicked(void        *data,
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                   Evas_Object *obj EINA_UNUSED,
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                   void        *event_info EINA_UNUSED)
240
{
241
   Elm_Object_Item *gg_it = elm_gengrid_last_item_get(data);
242

243
   if (!gg_it) return;
244

245
   elm_gengrid_item_show(gg_it, ELM_GENGRID_ITEM_SCROLLTO_IN);
246
}
247

248
/* disable selected item */
249
static void
250
_toggle_disabled_cb(void        *data,
251
                    Evas_Object *obj EINA_UNUSED,
252
                    void        *event_info EINA_UNUSED)
253
{
254
   Elm_Object_Item *gg_it = elm_gengrid_selected_item_get(data);
255

256
   if (!gg_it) return;
257

258
   elm_gengrid_item_selected_set(gg_it, EINA_FALSE);
259
   elm_object_item_disabled_set(gg_it, EINA_TRUE);
260
}
261

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/* change items' size */
263
static void
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_size_changed(void        *data,
265
              Evas_Object *obj,
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              void        *event_info EINA_UNUSED)
267
{
268
   Evas_Object *grid = data;
269
   int size = elm_spinner_value_get(obj);
270

271
   elm_gengrid_item_size_set(grid, size, size);
272
}
273

274
/* item double click callback */
275
static void
276
_double_click(void        *data EINA_UNUSED,
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              Evas_Object *obj EINA_UNUSED,
278
              void        *event_info)
279
{
280
   printf("Double click on item with handle %p\n", event_info);
281
}
282

283
/* item long press callback */
284
static void
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_long_pressed(void        *data EINA_UNUSED,
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              Evas_Object *obj EINA_UNUSED,
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              void        *event_info)
288
{
289
   printf("Long press on item with handle %p\n", event_info);
290
}
291

292
/* label fetching callback */
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static char *
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_grid_label_get(void        *data,
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                Evas_Object *obj EINA_UNUSED,
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                const char  *part EINA_UNUSED)
297
{
298
   const Example_Item *it = data;
299
   char buf[256];
300

301
   snprintf(buf, sizeof(buf), "Photo %s", it->path);
302
   return strdup(buf);
303
}
304

305
/* icon fetching callback */
306
static Evas_Object *
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_grid_content_get(void        *data,
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                  Evas_Object *obj,
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                  const char  *part)
310
{
311
   const Example_Item *it = data;
312

313
   if (!strcmp(part, "elm.swallow.icon"))
314
     {
315
        Evas_Object *icon = elm_bg_add(obj);
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        char buf[PATH_MAX];
317

318
        snprintf(buf, sizeof(buf), "%s/images/%s", elm_app_data_dir_get(),
319
                 it->path);
320

321
        elm_bg_file_set(icon, buf, NULL);
322
        evas_object_size_hint_aspect_set(icon, EVAS_ASPECT_CONTROL_VERTICAL, 1,
323
                                         1);
324
        evas_object_show(icon);
325
        return icon;
326
     }
327
   else if (!strcmp(part, "elm.swallow.end"))
328
     {
329
        Evas_Object *ck;
330
        ck = elm_check_add(obj);
331
        evas_object_propagate_events_set(ck, EINA_FALSE);
332
        evas_object_show(ck);
333
        return ck;
334
     }
335

336
   return NULL;
337
}
338

339
/* state fetching callback */
340
static Eina_Bool
341
_grid_state_get(void        *data EINA_UNUSED,
342
                Evas_Object *obj EINA_UNUSED,
343
                const char  *part EINA_UNUSED)
344
{
345
   return EINA_FALSE;
346
}
347

348
/* deletion callback */
349
static void
350
_grid_del(void        *data,
351
          Evas_Object *obj EINA_UNUSED)
352
{
353
   Example_Item *it = data;
354

355
   eina_stringshare_del(it->path);
356
   free(it);
357
}
358

359
/* scrolling animation stopped callback */
360
static void
361
_grid_scroll_stopped_cb(void        *data EINA_UNUSED,
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                        Evas_Object *obj,
363
                        void        *event_info EINA_UNUSED)
364
{
365
   int h_pagenumber = 0, v_pagenumber = 0;
366
   elm_scroller_current_page_get(obj, &h_pagenumber, &v_pagenumber);
367
   printf("Grid current horiz page is %d, vert page is %d\n",
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           h_pagenumber, v_pagenumber);
369
}
370

371
/* items grid horizontal alignment change */
372
static void
373
_h_align_change_cb(void        *data,
374
                   Evas_Object *obj,
375
                   void        *event_info EINA_UNUSED)
376
{
377
   double v_align;
378
   double val = elm_slider_value_get(obj);
379

380
   elm_gengrid_align_get(data, NULL, &v_align);
381

382
   printf("Setting horizontal alignment to %f\n", val);
383
   elm_gengrid_align_set(data, val, v_align);
384
}
385

386
static void
387
_v_align_change_cb(void        *data,
388
                   Evas_Object *obj,
389
                   void        *event_info EINA_UNUSED)
390
{
391
   double h_align;
392
   double val = elm_slider_value_get(obj);
393

394
   elm_gengrid_align_get(data, &h_align, NULL);
395

396
   printf("Setting vertical alignment to %f\n", val);
397
   elm_gengrid_align_set(data, h_align, val);
398
}
399

400
/* page relative size change */
401
static void
402
_page_change_cb(void        *data,
403
                Evas_Object *obj,
404
                void        *event_info EINA_UNUSED)
405
{
406
   double val = elm_slider_value_get(obj);
407

408
   elm_scroller_page_relative_set(data, val, val);
409

410
   printf("Setting grid page's relative size to %f\n", val);
411
}
412

413
EAPI_MAIN int
414
elm_main(int    argc EINA_UNUSED,
415
         char **argv EINA_UNUSED)
416
{
417
   Evas_Object *win, *grid, *bx, *hbx_1, *hbx_2, *hbx_3, *bt, *ck, *sl, *sp;
418
   Eina_Bool bounce;
419
   double h, v;
420

421
   elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
422
   elm_app_info_set(elm_main, "elementary", "images");
423

424
   win = elm_win_util_standard_add("gengrid", "Generic Grid Example");
425
   elm_win_autodel_set(win, EINA_TRUE);
426

427
   bx = elm_box_add(win);
428
   evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
429
   elm_win_resize_object_add(win, bx);
430
   evas_object_show(bx);
431

432
   grid = elm_gengrid_add(win);
433
   elm_gengrid_item_size_set(grid, 150, 150);
434
   evas_object_size_hint_weight_set(grid, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
435
   evas_object_size_hint_align_set(grid, EVAS_HINT_FILL, EVAS_HINT_FILL);
436
   elm_box_pack_end(bx, grid);
437
   evas_object_smart_callback_add(grid, "clicked,double", _double_click, NULL);
438
   evas_object_smart_callback_add(grid, "longpressed", _long_pressed, NULL);
439
   evas_object_show(grid);
440

441
   hbx_1 = elm_box_add(win);
442
   evas_object_size_hint_weight_set(hbx_1, EVAS_HINT_EXPAND, 0.0);
443
   elm_box_horizontal_set(hbx_1, EINA_TRUE);
444
   elm_box_pack_end(bx, hbx_1);
445
   evas_object_show(hbx_1);
446

447
   bt = elm_button_add(win);
448
   elm_object_text_set(bt, "Append");
449
   evas_object_smart_callback_add(bt, "clicked", _append_bt_clicked, grid);
450
   elm_box_pack_end(hbx_1, bt);
451
   evas_object_show(bt);
452

453
   bt = elm_button_add(win);
454
   elm_object_text_set(bt, "Prepend");
455
   evas_object_smart_callback_add(bt, "clicked", _prepend_bt_clicked, grid);
456
   elm_box_pack_end(hbx_1, bt);
457
   evas_object_show(bt);
458

459
   before_bt = elm_button_add(win);
460
   elm_object_text_set(before_bt, "Insert before");
461
   evas_object_smart_callback_add(before_bt, "clicked", _before_bt_clicked,
462
                                  grid);
463
   elm_box_pack_end(hbx_1, before_bt);
464
   evas_object_show(before_bt);
465

466
   after_bt = elm_button_add(win);
467
   elm_object_text_set(after_bt, "Insert after");
468
   evas_object_smart_callback_add(after_bt, "clicked", _after_bt_clicked, grid);
469
   elm_box_pack_end(hbx_1, after_bt);
470
   evas_object_show(after_bt);
471

472
   bt = elm_button_add(win);
473
   elm_object_text_set(bt, "Clear");
474
   evas_object_smart_callback_add(bt, "clicked", _clear_cb, grid);
475
   elm_box_pack_end(hbx_1, bt);
476
   evas_object_show(bt);
477

478
   bt = elm_button_add(win);
479
   elm_object_text_set(bt, "Bring in 1st");
480
   evas_object_smart_callback_add(bt, "clicked", _bring_1st_clicked, grid);
481
   elm_box_pack_end(hbx_1, bt);
482
   evas_object_show(bt);
483

484
   bt = elm_button_add(win);
485
   elm_object_text_set(bt, "Show last");
486
   evas_object_smart_callback_add(bt, "clicked", _show_last_clicked, grid);
487
   elm_box_pack_end(hbx_1, bt);
488
   evas_object_show(bt);
489

490
   sp = elm_spinner_add(win);
491
   elm_spinner_min_max_set(sp, 10, 1024);
492
   elm_spinner_value_set(sp, 150);
493
   elm_spinner_label_format_set(sp, "Item size: %.0f");
494
   evas_object_smart_callback_add(sp, "changed", _size_changed, grid);
495
   evas_object_size_hint_weight_set(sp, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
496
   elm_box_pack_end(hbx_1, sp);
497
   evas_object_show(sp);
498

499
   hbx_2 = elm_box_add(win);
500
   evas_object_size_hint_weight_set(hbx_2, EVAS_HINT_EXPAND, 0.0);
501
   elm_box_horizontal_set(hbx_2, EINA_TRUE);
502
   elm_box_pack_end(bx, hbx_2);
503
   evas_object_show(hbx_2);
504

505
   bt = elm_button_add(win);
506
   elm_object_text_set(bt, "Disable item");
507
   evas_object_smart_callback_add(bt, "clicked", _toggle_disabled_cb, grid);
508
   elm_box_pack_end(hbx_2, bt);
509
   evas_object_show(bt);
510

511
   ck = elm_check_add(win);
512
   elm_object_text_set(ck, "Horizontal mode");
513
   evas_object_smart_callback_add(ck, "changed", _horizontal_grid, grid);
514
   elm_box_pack_end(hbx_2, ck);
515
   evas_object_show(ck);
516

517
   ck = elm_check_add(win);
518
   elm_object_text_set(ck, "Always select");
519
   evas_object_smart_callback_add(ck, "changed", _always_select_change, grid);
520
   elm_box_pack_end(hbx_2, ck);
521
   evas_object_show(ck);
522

523
   ck = elm_check_add(win);
524
   elm_scroller_bounce_get(grid, &bounce, NULL);
525
   elm_object_text_set(ck, "Bouncing");
526
   elm_check_state_set(ck, bounce);
527
   evas_object_smart_callback_add(ck, "changed", _bouncing_change, grid);
528
   elm_box_pack_end(hbx_2, ck);
529
   evas_object_show(ck);
530

531
   ck = elm_check_add(win);
532
   elm_object_text_set(ck, "Multi-selection");
533
   elm_check_state_set(ck, elm_gengrid_multi_select_get(grid));
534
   evas_object_smart_callback_add(ck, "changed", _multi_change, grid);
535
   elm_box_pack_end(hbx_2, ck);
536
   evas_object_show(ck);
537

538
   ck = elm_check_add(win);
539
   elm_object_text_set(ck, "No selection");
540
   evas_object_smart_callback_add(ck, "changed", _no_sel_change, grid);
541
   elm_box_pack_end(hbx_2, ck);
542
   evas_object_show(ck);
543

544
   hbx_3 = elm_box_add(win);
545
   evas_object_size_hint_weight_set(hbx_3, EVAS_HINT_EXPAND, 0.0);
546
   elm_box_horizontal_set(hbx_3, EINA_TRUE);
547
   elm_box_pack_end(bx, hbx_3);
548
   evas_object_show(hbx_3);
549

550
   elm_gengrid_align_get(grid, &h, &v);
551
   evas_object_smart_callback_add(grid, "scroll,anim,stop", _grid_scroll_stopped_cb, NULL);
552

553
   sl = elm_slider_add(win);
554
   elm_object_text_set(sl, "Horiz. alignment");
555
   elm_slider_span_size_set(sl, 100);
556
   evas_object_size_hint_align_set(sl, 0.5, EVAS_HINT_FILL);
557
   evas_object_size_hint_weight_set(sl, 0.0, EVAS_HINT_EXPAND);
558
   elm_slider_indicator_format_set(sl, "%1.1f");
559
   elm_slider_value_set(sl, h);
560
   elm_box_pack_end(hbx_3, sl);
561
   evas_object_show(sl);
562

563
   evas_object_smart_callback_add(sl, "changed", _h_align_change_cb, grid);
564

565
   sl = elm_slider_add(win);
566
   elm_object_text_set(sl, "Vert. alignment");
567
   elm_slider_span_size_set(sl, 100);
568
   evas_object_size_hint_align_set(sl, 0.5, EVAS_HINT_FILL);
569
   evas_object_size_hint_weight_set(sl, 0.0, EVAS_HINT_EXPAND);
570
   elm_slider_indicator_format_set(sl, "%1.1f");
571
   elm_slider_value_set(sl, v);
572
   elm_box_pack_end(hbx_3, sl);
573
   evas_object_show(sl);
574

575
   evas_object_smart_callback_add(sl, "changed", _v_align_change_cb, grid);
576

577
   elm_gengrid_align_get(grid, &h, &v);
578

579
   sl = elm_slider_add(win);
580
   elm_object_text_set(sl, "Page rel. size");
581
   elm_slider_span_size_set(sl, 100);
582
   evas_object_size_hint_align_set(sl, 0.5, EVAS_HINT_FILL);
583
   evas_object_size_hint_weight_set(sl, 0.0, EVAS_HINT_EXPAND);
584
   elm_slider_indicator_format_set(sl, "%1.1f");
585
   elm_slider_value_set(sl, h);
586
   elm_box_pack_end(hbx_3, sl);
587
   evas_object_show(sl);
588

589
   _page_change_cb(grid, sl, NULL);
590
   evas_object_smart_callback_add(sl, "changed", _page_change_cb, grid);
591

592
   if (!gic)
593
     {
594
        gic = elm_gengrid_item_class_new();
595
        gic->item_style = "default";
596
        gic->func.text_get = _grid_label_get;
597
        gic->func.content_get = _grid_content_get;
598
        gic->func.state_get = _grid_state_get;
599
        gic->func.del = _grid_del;
600
     } // we only create the first time its needed. we dont unref/free
601

602
   _append_bt_clicked(grid, NULL, NULL);
603
   _append_bt_clicked(grid, NULL, NULL);
604
   _append_bt_clicked(grid, NULL, NULL);
605

606
   evas_object_resize(win, 600, 600);
607
   evas_object_show(win);
608

609
   elm_run();
610

611
   return 0;
612
}
613
ELM_MAIN()
614