1 #include <Elementary.h>
5 * @defgroup Toggle Toggle
8 * A toggle is a slider which can be used to toggle between
9 * two values. It has two states: on and off.
11 * Signals that you can add callbacks for are:
13 * changed - Whenever the toggle value has been changed. Is not called
14 * until the toggle is released by the cursor (assuming it has been triggered
15 * by the cursor in the first place).
18 typedef struct _Widget_Data Widget_Data;
27 const char *ontext, *offtext;
30 static const char *widtype = NULL;
31 static void _del_hook(Evas_Object *obj);
32 static void _disable_hook(Evas_Object *obj);
33 static void _theme_hook(Evas_Object *obj);
34 static void _sizing_eval(Evas_Object *obj);
35 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
36 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
37 static void _signal_toggle_off(void *data, Evas_Object *obj, const char *emission, const char *source);
38 static void _signal_toggle_on(void *data, Evas_Object *obj, const char *emission, const char *source);
40 static const char SIG_CHANGED[] = "changed";
41 static const Evas_Smart_Cb_Description _signals[] = {
47 _del_hook(Evas_Object *obj)
49 Widget_Data *wd = elm_widget_data_get(obj);
51 if (wd->label) eina_stringshare_del(wd->label);
52 if (wd->ontext) eina_stringshare_del(wd->ontext);
53 if (wd->offtext) eina_stringshare_del(wd->offtext);
58 _disable_hook(Evas_Object *obj)
60 Widget_Data *wd = elm_widget_data_get(obj);
62 if (elm_widget_disabled_get(obj))
63 edje_object_signal_emit(wd->tgl, "elm,state,disabled", "elm");
65 edje_object_signal_emit(wd->tgl, "elm,state,enabled", "elm");
69 _theme_hook(Evas_Object *obj)
71 Widget_Data *wd = elm_widget_data_get(obj);
73 _elm_theme_object_set(obj, wd->tgl, "toggle", "base", elm_widget_style_get(obj));
75 edje_object_signal_emit(wd->tgl, "elm,state,icon,visible", "elm");
77 edje_object_signal_emit(wd->tgl, "elm,state,icon,hidden", "elm");
79 edje_object_signal_emit(wd->tgl, "elm,state,toggle,on", "elm");
81 edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");
83 edje_object_signal_emit(wd->tgl, "elm,state,text,visible", "elm");
85 edje_object_signal_emit(wd->tgl, "elm,state,text,hidden", "elm");
86 edje_object_part_text_set(wd->tgl, "elm.text", wd->label);
87 edje_object_part_text_set(wd->tgl, "elm.ontext", wd->ontext);
88 edje_object_part_text_set(wd->tgl, "elm.offtext", wd->offtext);
89 edje_object_message_signal_process(wd->tgl);
90 edje_object_scale_set(wd->tgl, elm_widget_scale_get(obj) * _elm_config->scale);
95 _sizing_eval(Evas_Object *obj)
97 Widget_Data *wd = elm_widget_data_get(obj);
98 Evas_Coord minw = -1, minh = -1;
101 elm_coords_finger_size_adjust(1, &minw, 1, &minh);
102 edje_object_size_min_restricted_calc(wd->tgl, &minw, &minh, minw, minh);
103 elm_coords_finger_size_adjust(1, &minw, 1, &minh);
104 evas_object_size_hint_min_set(obj, minw, minh);
105 evas_object_size_hint_max_set(obj, -1, -1);
109 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
111 Widget_Data *wd = elm_widget_data_get(data);
113 if (obj != wd->icon) return;
118 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
120 Widget_Data *wd = elm_widget_data_get(obj);
121 Evas_Object *sub = event_info;
125 edje_object_signal_emit(wd->tgl, "elm,state,icon,hidden", "elm");
126 evas_object_event_callback_del_full
127 (sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, obj);
129 edje_object_message_signal_process(wd->tgl);
135 _signal_toggle_off(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
137 Widget_Data *wd = elm_widget_data_get(data);
140 if (wd->statep) *wd->statep = wd->state;
141 evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
145 _signal_toggle_on(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
147 Widget_Data *wd = elm_widget_data_get(data);
150 if (wd->statep) *wd->statep = wd->state;
151 evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
155 * Add a toggle to @p parent.
157 * @param[in] parent The parent object
159 * @return The toggle object
164 elm_toggle_add(Evas_Object *parent)
170 wd = ELM_NEW(Widget_Data);
171 e = evas_object_evas_get(parent);
172 obj = elm_widget_add(e);
173 ELM_SET_WIDTYPE(widtype, "toggle");
174 elm_widget_type_set(obj, "toggle");
175 elm_widget_sub_object_add(parent, obj);
176 elm_widget_data_set(obj, wd);
177 elm_widget_del_hook_set(obj, _del_hook);
178 elm_widget_theme_hook_set(obj, _theme_hook);
179 elm_widget_disable_hook_set(obj, _disable_hook);
181 wd->tgl = edje_object_add(e);
182 _elm_theme_object_set(obj, wd->tgl, "toggle", "base", "default");
183 wd->ontext = eina_stringshare_add("ON");
184 wd->offtext = eina_stringshare_add("OFF");
185 edje_object_signal_callback_add(wd->tgl, "elm,action,toggle,on", "",
186 _signal_toggle_on, obj);
187 edje_object_signal_callback_add(wd->tgl, "elm,action,toggle,off", "",
188 _signal_toggle_off, obj);
189 elm_widget_resize_object_set(obj, wd->tgl);
190 edje_object_part_text_set(wd->tgl, "elm.ontext", wd->ontext);
191 edje_object_part_text_set(wd->tgl, "elm.offtext", wd->offtext);
193 evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
197 // TODO: convert Elementary to subclassing of Evas_Smart_Class
198 // TODO: and save some bytes, making descriptions per-class and not instance!
199 evas_object_smart_callbacks_descriptions_set(obj, _signals);
204 * Sets the label to be displayed with the toggle.
206 * @param[in] obj The toggle object
207 * @param[in] label The label to be displayed
212 elm_toggle_label_set(Evas_Object *obj, const char *label)
214 ELM_CHECK_WIDTYPE(obj, widtype);
215 Widget_Data *wd = elm_widget_data_get(obj);
217 eina_stringshare_replace(&wd->label, label);
219 edje_object_signal_emit(wd->tgl, "elm,state,text,visible", "elm");
221 edje_object_signal_emit(wd->tgl, "elm,state,text,hidden", "elm");
222 edje_object_message_signal_process(wd->tgl);
223 edje_object_part_text_set(wd->tgl, "elm.text", label);
228 * Gets the label of the toggle
230 * @param[in] obj The toggle object
231 * @return The label of the toggle
236 elm_toggle_label_get(const Evas_Object *obj)
238 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
239 Widget_Data *wd = elm_widget_data_get(obj);
240 if (!wd) return NULL;
245 * Sets the icon to be displayed with the toggle.
247 * Once the icon object is set, a previously set one will be deleted.
249 * @param[in] obj The toggle object
250 * @param[in] icon The icon object to be displayed
255 elm_toggle_icon_set(Evas_Object *obj, Evas_Object *icon)
257 ELM_CHECK_WIDTYPE(obj, widtype);
258 Widget_Data *wd = elm_widget_data_get(obj);
260 if (wd->icon == icon) return;
261 if (wd->icon) evas_object_del(wd->icon);
265 elm_widget_sub_object_add(obj, icon);
266 evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
267 _changed_size_hints, obj);
268 edje_object_part_swallow(wd->tgl, "elm.swallow.content", icon);
269 edje_object_signal_emit(wd->tgl, "elm,state,icon,visible", "elm");
270 edje_object_message_signal_process(wd->tgl);
276 * Gets the icon of the toggle
278 * @param[in] obj The toggle object
279 * @return The icon object
284 elm_toggle_icon_get(const Evas_Object *obj)
286 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
287 Widget_Data *wd = elm_widget_data_get(obj);
288 if (!wd) return NULL;
293 * Sets the labels to be associated with the on and off states of the toggle.
295 * @param[in] obj The toggle object
296 * @param[in] onlabel The label displayed when the toggle is in the "on" state
297 * @param[in] offlabel The label displayed when the toggle is in the "off" state
302 elm_toggle_states_labels_set(Evas_Object *obj, const char *onlabel, const char *offlabel)
304 ELM_CHECK_WIDTYPE(obj, widtype);
305 Widget_Data *wd = elm_widget_data_get(obj);
307 eina_stringshare_replace(&wd->ontext, onlabel);
308 eina_stringshare_replace(&wd->offtext, offlabel);
309 edje_object_part_text_set(wd->tgl, "elm.ontext", onlabel);
310 edje_object_part_text_set(wd->tgl, "elm.offtext", offlabel);
316 * Gets the labels associated with the on and off states of the toggle.
318 * @param[in] obj The toggle object
319 * @param[in] onlabel A char** to place the onlabel of @p obj into
320 * @param[in] offlabel A char** to place the offlabel of @p obj into
325 elm_toggle_states_labels_get(const Evas_Object *obj, const char **onlabel, const char **offlabel)
327 if (onlabel) *onlabel = NULL;
328 if (offlabel) *offlabel = NULL;
329 ELM_CHECK_WIDTYPE(obj, widtype);
330 Widget_Data *wd = elm_widget_data_get(obj);
332 if (onlabel) *onlabel = wd->ontext;
333 if (offlabel) *offlabel = wd->offtext;
337 * Sets the state of the toggle to @p state.
339 * @param[in] obj The toggle object
340 * @param[in] state The state of @p obj
345 elm_toggle_state_set(Evas_Object *obj, Eina_Bool state)
347 ELM_CHECK_WIDTYPE(obj, widtype);
348 Widget_Data *wd = elm_widget_data_get(obj);
350 if (state != wd->state)
353 if (wd->statep) *wd->statep = wd->state;
355 edje_object_signal_emit(wd->tgl, "elm,state,toggle,on", "elm");
357 edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");
362 * Gets the state of the toggle to @p state.
364 * @param[in] obj The toggle object
365 * @return The state of @p obj
370 elm_toggle_state_get(const Evas_Object *obj)
372 ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
373 Widget_Data *wd = elm_widget_data_get(obj);
374 if (!wd) return EINA_FALSE;
379 * Sets the state pointer of the toggle to @p statep.
381 * @param[in] obj The toggle object
382 * @param[in] statep The state pointer of @p obj
387 elm_toggle_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
389 ELM_CHECK_WIDTYPE(obj, widtype);
390 Widget_Data *wd = elm_widget_data_get(obj);
395 if (*wd->statep != wd->state)
397 wd->state = *wd->statep;
399 edje_object_signal_emit(wd->tgl, "elm,state,toggle,on", "elm");
401 edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");