1 #include <Elementary.h>
7 * A toggle is a slider which can be used to toggle between
8 * two values. It has two states: on and off.
10 * Signals that you can add callbacks for are:
12 * changed - Whenever the toggle value has been changed. Is not called
13 * until the toggle is released by the cursor (assuming it has been triggered
14 * by the cursor in the first place).
17 typedef struct _Widget_Data Widget_Data;
26 const char *ontext, *offtext;
29 static const char *widtype = NULL;
30 static void _del_hook(Evas_Object *obj);
31 static void _disable_hook(Evas_Object *obj);
32 static void _theme_hook(Evas_Object *obj);
33 static void _sizing_eval(Evas_Object *obj);
34 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
35 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
36 static void _signal_toggle_off(void *data, Evas_Object *obj, const char *emission, const char *source);
37 static void _signal_toggle_on(void *data, Evas_Object *obj, const char *emission, const char *source);
39 static const char SIG_CHANGED[] = "changed";
40 static const Evas_Smart_Cb_Description _signals[] = {
46 _del_hook(Evas_Object *obj)
48 Widget_Data *wd = elm_widget_data_get(obj);
50 if (wd->label) eina_stringshare_del(wd->label);
51 if (wd->ontext) eina_stringshare_del(wd->ontext);
52 if (wd->offtext) eina_stringshare_del(wd->offtext);
57 _disable_hook(Evas_Object *obj)
59 Widget_Data *wd = elm_widget_data_get(obj);
61 if (elm_widget_disabled_get(obj))
62 edje_object_signal_emit(wd->tgl, "elm,state,disabled", "elm");
64 edje_object_signal_emit(wd->tgl, "elm,state,enabled", "elm");
68 _theme_hook(Evas_Object *obj)
70 Widget_Data *wd = elm_widget_data_get(obj);
72 _elm_theme_object_set(obj, wd->tgl, "toggle", "base", elm_widget_style_get(obj));
74 edje_object_signal_emit(wd->tgl, "elm,state,icon,visible", "elm");
76 edje_object_signal_emit(wd->tgl, "elm,state,icon,hidden", "elm");
78 edje_object_signal_emit(wd->tgl, "elm,state,toggle,on", "elm");
80 edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");
82 edje_object_signal_emit(wd->tgl, "elm,state,text,visible", "elm");
84 edje_object_signal_emit(wd->tgl, "elm,state,text,hidden", "elm");
85 edje_object_part_text_set(wd->tgl, "elm.text", wd->label);
86 edje_object_part_text_set(wd->tgl, "elm.ontext", wd->ontext);
87 edje_object_part_text_set(wd->tgl, "elm.offtext", wd->offtext);
88 edje_object_message_signal_process(wd->tgl);
89 edje_object_scale_set(wd->tgl, elm_widget_scale_get(obj) * _elm_config->scale);
94 _sizing_eval(Evas_Object *obj)
96 Widget_Data *wd = elm_widget_data_get(obj);
97 Evas_Coord minw = -1, minh = -1;
100 elm_coords_finger_size_adjust(1, &minw, 1, &minh);
101 edje_object_size_min_restricted_calc(wd->tgl, &minw, &minh, minw, minh);
102 elm_coords_finger_size_adjust(1, &minw, 1, &minh);
103 evas_object_size_hint_min_set(obj, minw, minh);
104 evas_object_size_hint_max_set(obj, -1, -1);
108 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
110 Widget_Data *wd = elm_widget_data_get(data);
112 if (obj != wd->icon) return;
117 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
119 Widget_Data *wd = elm_widget_data_get(obj);
120 Evas_Object *sub = event_info;
124 edje_object_signal_emit(wd->tgl, "elm,state,icon,hidden", "elm");
125 evas_object_event_callback_del_full
126 (sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, obj);
133 _signal_toggle_off(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
135 Widget_Data *wd = elm_widget_data_get(data);
138 if (wd->statep) *wd->statep = wd->state;
139 evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
143 _signal_toggle_on(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
145 Widget_Data *wd = elm_widget_data_get(data);
148 if (wd->statep) *wd->statep = wd->state;
149 evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
153 * Add a toggle to @p parent.
155 * @param parent The parent object
157 * @return The toggle object
162 elm_toggle_add(Evas_Object *parent)
168 wd = ELM_NEW(Widget_Data);
169 e = evas_object_evas_get(parent);
170 obj = elm_widget_add(e);
171 ELM_SET_WIDTYPE(widtype, "toggle");
172 elm_widget_type_set(obj, "toggle");
173 elm_widget_sub_object_add(parent, obj);
174 elm_widget_data_set(obj, wd);
175 elm_widget_del_hook_set(obj, _del_hook);
176 elm_widget_theme_hook_set(obj, _theme_hook);
177 elm_widget_disable_hook_set(obj, _disable_hook);
179 wd->tgl = edje_object_add(e);
180 _elm_theme_object_set(obj, wd->tgl, "toggle", "base", "default");
181 wd->ontext = eina_stringshare_add("ON");
182 wd->offtext = eina_stringshare_add("OFF");
183 edje_object_signal_callback_add(wd->tgl, "elm,action,toggle,on", "",
184 _signal_toggle_on, obj);
185 edje_object_signal_callback_add(wd->tgl, "elm,action,toggle,off", "",
186 _signal_toggle_off, obj);
187 elm_widget_resize_object_set(obj, wd->tgl);
188 edje_object_part_text_set(wd->tgl, "elm.ontext", wd->ontext);
189 edje_object_part_text_set(wd->tgl, "elm.offtext", wd->offtext);
191 evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
195 // TODO: convert Elementary to subclassing of Evas_Smart_Class
196 // TODO: and save some bytes, making descriptions per-class and not instance!
197 evas_object_smart_callbacks_descriptions_set(obj, _signals);
202 * Sets the label to be displayed with the toggle.
204 * @param obj The toggle object
205 * @param label The label to be displayed
210 elm_toggle_label_set(Evas_Object *obj, const char *label)
212 ELM_CHECK_WIDTYPE(obj, widtype);
213 Widget_Data *wd = elm_widget_data_get(obj);
215 eina_stringshare_replace(&wd->label, label);
217 edje_object_signal_emit(wd->tgl, "elm,state,text,visible", "elm");
219 edje_object_signal_emit(wd->tgl, "elm,state,text,hidden", "elm");
220 edje_object_message_signal_process(wd->tgl);
221 edje_object_part_text_set(wd->tgl, "elm.text", label);
226 * Gets the label of the toggle
228 * @param obj The toggle object
229 * @return The label of the toggle
234 elm_toggle_label_get(const Evas_Object *obj)
236 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
237 Widget_Data *wd = elm_widget_data_get(obj);
238 if (!wd) return NULL;
243 * Sets the icon to be displayed with the toggle.
245 * @param obj The toggle object
246 * @param icon The icon object to be displayed
251 elm_toggle_icon_set(Evas_Object *obj, Evas_Object *icon)
253 ELM_CHECK_WIDTYPE(obj, widtype);
254 Widget_Data *wd = elm_widget_data_get(obj);
256 if ((wd->icon != icon) && (wd->icon))
257 elm_widget_sub_object_del(obj, wd->icon);
260 elm_widget_sub_object_add(obj, icon);
261 evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
262 _changed_size_hints, obj);
263 edje_object_part_swallow(wd->tgl, "elm.swallow.content", icon);
264 edje_object_signal_emit(wd->tgl, "elm,state,icon,visible", "elm");
269 * Gets the icon of the toggle
271 * @param obj The toggle object
272 * @return The icon object
277 elm_toggle_icon_get(const Evas_Object *obj)
279 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
280 Widget_Data *wd = elm_widget_data_get(obj);
281 if (!wd) return NULL;
286 * Sets the labels to be associated with the on and off states of the toggle.
288 * @param obj The toggle object
289 * @param onlabel The label displayed when the toggle is in the "on" state
290 * @param offlabel The label displayed when the toggle is in the "off" state
295 elm_toggle_states_labels_set(Evas_Object *obj, const char *onlabel, const char *offlabel)
297 ELM_CHECK_WIDTYPE(obj, widtype);
298 Widget_Data *wd = elm_widget_data_get(obj);
300 eina_stringshare_replace(&wd->ontext, onlabel);
301 eina_stringshare_replace(&wd->offtext, offlabel);
302 edje_object_part_text_set(wd->tgl, "elm.ontext", onlabel);
303 edje_object_part_text_set(wd->tgl, "elm.offtext", offlabel);
309 * Gets the labels associated with the on and off states of the toggle.
311 * @param obj The toggle object
312 * @param onlabel A char** to place the onlabel of @p obj into
313 * @param offlabel A char** to place the offlabel of @p obj into
318 elm_toggle_states_labels_get(const Evas_Object *obj, const char **onlabel, const char **offlabel)
320 if (onlabel) *onlabel = NULL;
321 if (offlabel) *offlabel = NULL;
322 ELM_CHECK_WIDTYPE(obj, widtype);
323 Widget_Data *wd = elm_widget_data_get(obj);
325 if (onlabel) *onlabel = wd->ontext;
326 if (offlabel) *offlabel = wd->offtext;
330 * Sets the state of the toggle to @p state.
332 * @param obj The toggle object
333 * @param state The state of @p obj
338 elm_toggle_state_set(Evas_Object *obj, Eina_Bool state)
340 ELM_CHECK_WIDTYPE(obj, widtype);
341 Widget_Data *wd = elm_widget_data_get(obj);
343 if (state != wd->state)
346 if (wd->statep) *wd->statep = wd->state;
348 edje_object_signal_emit(wd->tgl, "elm,state,toggle,on", "elm");
350 edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");
355 * Gets the state of the toggle to @p state.
357 * @param obj The toggle object
358 * @return The state of @p obj
363 elm_toggle_state_get(const Evas_Object *obj)
365 ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
366 Widget_Data *wd = elm_widget_data_get(obj);
367 if (!wd) return EINA_FALSE;
372 * Sets the state pointer of the toggle to @p statep.
374 * @param obj The toggle object
375 * @param statep The state pointer of @p obj
380 elm_toggle_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
382 ELM_CHECK_WIDTYPE(obj, widtype);
383 Widget_Data *wd = elm_widget_data_get(obj);
388 if (*wd->statep != wd->state)
390 wd->state = *wd->statep;
392 edje_object_signal_emit(wd->tgl, "elm,state,toggle,on", "elm");
394 edje_object_signal_emit(wd->tgl, "elm,state,toggle,off", "elm");