1 #include <Elementary.h>
5 * @defgroup Check Check
8 * The check widget allows for toggling a value between true or false (1 or 0).
10 * Check objects are a lot like radio objects in layout and functionality
11 * except they do not work as a group, but independently and only toggle the
12 * value of a boolean from false to true (0 or 1). elm_check_state_set() sets
13 * the boolean state (1 for true, 0 for false), and elm_check_state_get()
14 * returns the current state. For convenience, like the radio objects, you
15 * can set a pointer to a boolean directly with elm_check_state_pointer_set()
18 * Signals that you can add callbacks for are:
20 * "changed" - This is called whenever the user changes the state of one of the
23 typedef struct _Widget_Data Widget_Data;
27 Evas_Object *chk, *icon;
33 static const char *widtype = NULL;
34 static void _del_hook(Evas_Object *obj);
35 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
36 static void _theme_hook(Evas_Object *obj);
37 static void _disable_hook(Evas_Object *obj);
38 static void _sizing_eval(Evas_Object *obj);
39 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
40 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
41 static void _signal_check_off(void *data, Evas_Object *obj, const char *emission, const char *source);
42 static void _signal_check_on(void *data, Evas_Object *obj, const char *emission, const char *source);
43 static void _signal_check_toggle(void *data, Evas_Object *obj, const char *emission, const char *source);
44 static void _on_focus_hook(void *data, Evas_Object *obj);
45 static void _activate_hook(Evas_Object *obj);
46 static void _activate(Evas_Object *obj);
47 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
48 Evas_Callback_Type type, void *event_info);
50 static const char SIG_CHANGED[] = "changed";
51 static const Evas_Smart_Cb_Description _signals[] = {
57 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
59 if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
60 Evas_Event_Key_Down *ev = event_info;
61 if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
62 if (elm_widget_disabled_get(obj)) return EINA_FALSE;
63 if ((strcmp(ev->keyname, "Return")) &&
64 (strcmp(ev->keyname, "KP_Enter")) &&
65 (strcmp(ev->keyname, "space")))
68 ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
74 _del_hook(Evas_Object *obj)
76 Widget_Data *wd = elm_widget_data_get(obj);
78 if (wd->label) eina_stringshare_del(wd->label);
83 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
85 Widget_Data *wd = elm_widget_data_get(obj);
87 if (elm_widget_focus_get(obj))
89 edje_object_signal_emit(wd->chk, "elm,action,focus", "elm");
90 evas_object_focus_set(wd->chk, EINA_TRUE);
94 edje_object_signal_emit(wd->chk, "elm,action,unfocus", "elm");
95 evas_object_focus_set(wd->chk, EINA_FALSE);
100 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
102 Widget_Data *wd = elm_widget_data_get(obj);
104 edje_object_mirrored_set(wd->chk, rtl);
108 _theme_hook(Evas_Object *obj)
110 Widget_Data *wd = elm_widget_data_get(obj);
112 _elm_widget_mirrored_reload(obj);
113 _mirrored_set(obj, elm_widget_mirrored_get(obj));
114 _elm_theme_object_set(obj, wd->chk, "check", "base", elm_widget_style_get(obj));
116 edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
118 edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
120 edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
122 edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
124 edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
126 edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
127 edje_object_part_text_set(wd->chk, "elm.text", wd->label);
128 if (elm_widget_disabled_get(obj))
129 edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
130 edje_object_message_signal_process(wd->chk);
131 edje_object_scale_set(wd->chk, elm_widget_scale_get(obj) * _elm_config->scale);
136 _disable_hook(Evas_Object *obj)
138 Widget_Data *wd = elm_widget_data_get(obj);
140 if (elm_widget_disabled_get(obj))
141 edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
143 edje_object_signal_emit(wd->chk, "elm,state,enabled", "elm");
147 _sizing_eval(Evas_Object *obj)
149 Widget_Data *wd = elm_widget_data_get(obj);
150 Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
152 elm_coords_finger_size_adjust(1, &minw, 1, &minh);
153 edje_object_size_min_restricted_calc(wd->chk, &minw, &minh, minw, minh);
154 elm_coords_finger_size_adjust(1, &minw, 1, &minh);
155 evas_object_size_hint_min_set(obj, minw, minh);
156 evas_object_size_hint_max_set(obj, maxw, maxh);
160 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
162 Widget_Data *wd = elm_widget_data_get(data);
164 if (obj != wd->icon) return;
166 evas_object_size_hint_min_get(obj, &mw, &mh);
171 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
173 Widget_Data *wd = elm_widget_data_get(obj);
174 Evas_Object *sub = event_info;
178 edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
179 evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
180 _changed_size_hints, obj);
183 edje_object_message_signal_process(wd->chk);
188 _signal_check_off(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
190 Widget_Data *wd = elm_widget_data_get(data);
192 wd->state = EINA_FALSE;
193 if (wd->statep) *wd->statep = wd->state;
194 edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
195 evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
199 _signal_check_on(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
201 Widget_Data *wd = elm_widget_data_get(data);
203 wd->state = EINA_TRUE;
204 if (wd->statep) *wd->statep = wd->state;
205 edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
206 evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
210 _signal_check_toggle(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
216 _activate_hook(Evas_Object *obj)
222 _activate(Evas_Object *obj)
224 Widget_Data *wd = elm_widget_data_get(obj);
226 wd->state = !wd->state;
227 if (wd->statep) *wd->statep = wd->state;
229 edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
231 edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
232 evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
236 * Add a new Check object
238 * @param parent The parent object
239 * @return The new object or NULL if it cannot be created
244 elm_check_add(Evas_Object *parent)
250 ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
252 ELM_SET_WIDTYPE(widtype, "check");
253 elm_widget_type_set(obj, "check");
254 elm_widget_sub_object_add(parent, obj);
255 elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
256 elm_widget_data_set(obj, wd);
257 elm_widget_del_hook_set(obj, _del_hook);
258 elm_widget_theme_hook_set(obj, _theme_hook);
259 elm_widget_disable_hook_set(obj, _disable_hook);
260 elm_widget_can_focus_set(obj, EINA_TRUE);
261 elm_widget_activate_hook_set(obj, _activate_hook);
262 elm_widget_event_hook_set(obj, _event_hook);
264 wd->chk = edje_object_add(e);
265 _elm_theme_object_set(obj, wd->chk, "check", "base", "default");
266 edje_object_signal_callback_add(wd->chk, "elm,action,check,on", "",
267 _signal_check_on, obj);
268 edje_object_signal_callback_add(wd->chk, "elm,action,check,off", "",
269 _signal_check_off, obj);
270 edje_object_signal_callback_add(wd->chk, "elm,action,check,toggle", "",
271 _signal_check_toggle, obj);
272 elm_widget_resize_object_set(obj, wd->chk);
274 evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
276 _mirrored_set(obj, elm_widget_mirrored_get(obj));
279 // TODO: convert Elementary to subclassing of Evas_Smart_Class
280 // TODO: and save some bytes, making descriptions per-class and not instance!
281 evas_object_smart_callbacks_descriptions_set(obj, _signals);
286 * Set the text label of the check object
288 * @param obj The check object
289 * @param label The text label string in UTF-8
294 elm_check_label_set(Evas_Object *obj, const char *label)
296 ELM_CHECK_WIDTYPE(obj, widtype);
297 Widget_Data *wd = elm_widget_data_get(obj);
299 eina_stringshare_replace(&wd->label, label);
301 edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
303 edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
304 edje_object_message_signal_process(wd->chk);
305 edje_object_part_text_set(wd->chk, "elm.text", label);
310 * Get the text label of the check object
312 * @param obj The check object
313 * @return The text label string in UTF-8
318 elm_check_label_get(const Evas_Object *obj)
320 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
321 Widget_Data *wd = elm_widget_data_get(obj);
322 if (!wd) return NULL;
327 * Set the icon object of the check object
329 * Once the icon object is set, a previously set one will be deleted.
330 * If you want to keep that old content object, use the
331 * elm_check_icon_unset() function.
333 * @param obj The check object
334 * @param icon The icon object
339 elm_check_icon_set(Evas_Object *obj, Evas_Object *icon)
341 ELM_CHECK_WIDTYPE(obj, widtype);
342 Widget_Data *wd = elm_widget_data_get(obj);
344 if (wd->icon == icon) return;
345 if (wd->icon) evas_object_del(wd->icon);
349 elm_widget_sub_object_add(obj, icon);
350 evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
351 _changed_size_hints, obj);
352 edje_object_part_swallow(wd->chk, "elm.swallow.content", icon);
353 edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
354 edje_object_message_signal_process(wd->chk);
360 * Get the icon object of the check object
362 * @param obj The check object
363 * @return The icon object
368 elm_check_icon_get(const Evas_Object *obj)
370 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
371 Widget_Data *wd = elm_widget_data_get(obj);
372 if (!wd) return NULL;
377 * Unset the icon used for the check object
379 * Unparent and return the icon object which was set for this widget.
381 * @param obj The check object
382 * @return The icon object that was being used
387 elm_check_icon_unset(Evas_Object *obj)
389 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
390 Widget_Data *wd = elm_widget_data_get(obj);
391 if (!wd) return NULL;
392 if (!wd->icon) return NULL;
393 Evas_Object *icon = wd->icon;
394 elm_widget_sub_object_del(obj, wd->icon);
395 edje_object_part_unswallow(wd->chk, wd->icon);
401 * Set the on/off state of the check object
403 * This sets the state of the check and will also set the value if pointed to
404 * to the state supplied, but will not call any callbacks.
406 * @param obj The check object
407 * @param state The state to use (1 == on, 0 == off)
412 elm_check_state_set(Evas_Object *obj, Eina_Bool state)
414 ELM_CHECK_WIDTYPE(obj, widtype);
415 Widget_Data *wd = elm_widget_data_get(obj);
417 if (state != wd->state)
420 if (wd->statep) *wd->statep = wd->state;
422 edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
424 edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
429 * Get the state of the check object
431 * @param obj The check object
432 * @return The boolean state
437 elm_check_state_get(const Evas_Object *obj)
439 ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
440 Widget_Data *wd = elm_widget_data_get(obj);
441 if (!wd) return EINA_FALSE;
446 * Set a convenience pointer to a boolean to change
448 * This sets a pointer to a boolean, that, in addition to the check objects
449 * state will also be modified directly. To stop setting the object pointed
450 * to simply use NULL as the statep parameter. If statep is not NULL, then
451 * when this is called, the check objects state will also be modified to
452 * reflect the value of the boolean statep points to, just like calling
453 * elm_check_state_set().
455 * @param obj The check object
456 * @param statep Pointer to the boolean to modify
461 elm_check_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
463 ELM_CHECK_WIDTYPE(obj, widtype);
464 Widget_Data *wd = elm_widget_data_get(obj);
469 if (*wd->statep != wd->state)
471 wd->state = *wd->statep;
473 edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
475 edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");