1 #include <Elementary.h>
5 * @defgroup Slider Slider
7 * The slider adds a dragable “slider” widget for selecting the value of
8 * something within a range.
10 * Signals that you can add callbacks for are:
12 * changed - Whenever the slider value is changed by the user.
14 * delay,changed - A short time after the value is changed by the user.
15 * This will be called only when the user stops dragging for a very short
16 * period or when they release their finger/mouse, so it avoids possibly
17 * expensive reactions to the value change.
19 * slider,drag,start - dragging the slider indicator around has started
21 * slider,drag,stop - dragging the slider indicator around has stopped
23 * A slider can be horizontal or vertical. It can contain an Icon and has a
24 * primary label as well as a units label (that is formatted with floating
25 * point values and thus accepts a printf-style format string, like
26 * “%1.2f units”. There is also an indicator string that may be somewhere
27 * else (like on the slider itself) that also accepts a format string like
28 * units. Label, Icon Unit and Indicator strings/objects are optional.
30 * A slider may be inverted which means values invert, with high vales being
31 * on the left or top and low values on the right or bottom (as opposed to
32 * normally being low on the left or top and high on the bottom and right).
34 * The slider should have its minimum and maximum values set by the
35 * application with elm_slider_min_max_set() and value should also be set by
36 * the application before use with elm_slider_value_set(). The span of the
37 * slider is its length (horizontally or vertically). This will be scaled by
38 * the object or applications scaling factor. At any point code can query the
39 * slider for its value with elm_slider_value_get().
42 typedef struct _Widget_Data Widget_Data;
52 const char *indicator;
53 const char *(*indicator_format_func)(double val);
54 Eina_Bool horizontal : 1;
55 Eina_Bool inverted : 1;
56 Eina_Bool indicator_show : 1;
57 double val, val_min, val_max;
62 #define ELM_SLIDER_INVERTED_FACTOR (-1.0)
64 static const char *widtype = NULL;
65 static void _del_hook(Evas_Object *obj);
66 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
67 static void _theme_hook(Evas_Object *obj);
68 static void _disable_hook(Evas_Object *obj);
69 static void _sizing_eval(Evas_Object *obj);
70 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
71 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
72 static void _units_set(Evas_Object *obj);
73 static void _val_set(Evas_Object *obj);
74 static void _indicator_set(Evas_Object *obj);
75 static void _on_focus_hook(void *data, Evas_Object *obj);
76 static void _drag_up(void *data, Evas_Object *obj,
77 const char *emission, const char *source);
78 static void _drag_down(void *data, Evas_Object *obj,
79 const char *emission, const char *source);
80 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
81 Evas_Callback_Type type, void *event_info);
82 static void _spacer_cb(void *data, Evas * e, Evas_Object * obj, void *event_info);
84 static const char SIG_CHANGED[] = "changed";
85 static const char SIG_DELAY_CHANGED[] = "delay,changed";
86 static const char SIG_DRAG_START[] = "slider,drag,start";
87 static const char SIG_DRAG_STOP[] = "slider,drag,stop";
88 static const Evas_Smart_Cb_Description _signals[] = {
90 {SIG_DELAY_CHANGED, ""},
97 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
99 Evas_Event_Mouse_Wheel *mev;
100 Evas_Event_Key_Down *ev;
103 wd = elm_widget_data_get(obj);
104 if (!wd) return EINA_FALSE;
106 if (type == EVAS_CALLBACK_KEY_DOWN) goto key_down;
107 else if (type != EVAS_CALLBACK_MOUSE_WHEEL) return EINA_FALSE;
110 if (mev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
111 if (elm_widget_disabled_get(obj)) return EINA_FALSE;
113 if (mev->z < 0) _drag_up(obj, NULL, NULL, NULL);
114 else _drag_down(obj, NULL, NULL, NULL);
115 mev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
120 if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
121 if (elm_widget_disabled_get(obj)) return EINA_FALSE;
122 if ((!strcmp(ev->keyname, "Left"))
123 || (!strcmp(ev->keyname, "KP_Left")))
125 if (!wd->horizontal) return EINA_FALSE;
126 if (!wd->inverted) _drag_down(obj, NULL, NULL, NULL);
127 else _drag_up(obj, NULL, NULL, NULL);
128 ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
131 else if ((!strcmp(ev->keyname, "Right"))
132 || (!strcmp(ev->keyname, "KP_Right")))
134 if (!wd->horizontal) return EINA_FALSE;
135 if (!wd->inverted) _drag_up(obj, NULL, NULL, NULL);
136 else _drag_down(obj, NULL, NULL, NULL);
137 ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
140 else if ((!strcmp(ev->keyname, "Up")) || (!strcmp(ev->keyname, "KP_Up")))
142 if (wd->horizontal) return EINA_FALSE;
143 if (wd->inverted) _drag_up(obj, NULL, NULL, NULL);
144 else _drag_down(obj, NULL, NULL, NULL);
145 ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
148 else if ((!strcmp(ev->keyname, "Down")) || (!strcmp(ev->keyname, "KP_Down")))
150 if (wd->horizontal) return EINA_FALSE;
151 if (wd->inverted) _drag_down(obj, NULL, NULL, NULL);
152 else _drag_up(obj, NULL, NULL, NULL);
153 ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
156 else return EINA_FALSE;
160 _del_hook(Evas_Object *obj)
162 Widget_Data *wd = elm_widget_data_get(obj);
164 if (wd->label) eina_stringshare_del(wd->label);
165 if (wd->indicator) eina_stringshare_del(wd->units);
166 if (wd->delay) ecore_timer_del(wd->delay);
171 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
173 Widget_Data *wd = elm_widget_data_get(obj);
175 if (elm_widget_focus_get(obj))
177 edje_object_signal_emit(wd->slider, "elm,action,focus", "elm");
178 evas_object_focus_set(wd->slider, EINA_TRUE);
182 edje_object_signal_emit(wd->slider, "elm,action,unfocus", "elm");
183 evas_object_focus_set(wd->slider, EINA_FALSE);
188 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
190 Widget_Data *wd = elm_widget_data_get(obj);
192 edje_object_mirrored_set(wd->slider, rtl);
196 _theme_hook(Evas_Object *obj)
198 Widget_Data *wd = elm_widget_data_get(obj);
200 _mirrored_set(obj, elm_widget_mirrored_get(obj));
202 _elm_theme_object_set(obj, wd->slider, "slider", "horizontal", elm_widget_style_get(obj));
204 _elm_theme_object_set(obj, wd->slider, "slider", "vertical", elm_widget_style_get(obj));
207 edje_object_part_swallow(wd->slider, "elm.swallow.content", wd->icon);
208 edje_object_signal_emit(wd->slider, "elm,state,icon,visible", "elm");
211 edje_object_signal_emit(wd->slider, "elm,state,end,visible", "elm");
213 edje_object_signal_emit(wd->slider, "elm,state,end,hidden", "elm");
216 edje_object_part_text_set(wd->slider, "elm.text", wd->label);
217 edje_object_signal_emit(wd->slider, "elm,state,text,visible", "elm");
221 edje_object_signal_emit(wd->slider, "elm,state,units,visible", "elm");
224 evas_object_size_hint_min_set(wd->spacer, (double)wd->size * elm_widget_scale_get(obj) * _elm_config->scale, 1);
226 evas_object_size_hint_min_set(wd->spacer, 1, (double)wd->size * elm_widget_scale_get(obj) * _elm_config->scale);
229 edje_object_signal_emit(wd->slider, "elm,state,inverted,on", "elm");
231 edje_object_part_swallow(wd->slider, "elm.swallow.bar", wd->spacer);
234 edje_object_message_signal_process(wd->slider);
235 edje_object_scale_set(wd->slider, elm_widget_scale_get(obj) * _elm_config->scale);
241 _disable_hook(Evas_Object *obj)
243 Widget_Data *wd = elm_widget_data_get(obj);
245 if (elm_widget_disabled_get(obj))
246 edje_object_signal_emit(wd->slider, "elm,state,disabled", "elm");
248 edje_object_signal_emit(wd->slider, "elm,state,enabled", "elm");
252 _sizing_eval(Evas_Object *obj)
254 Widget_Data *wd = elm_widget_data_get(obj);
255 Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
257 elm_coords_finger_size_adjust(1, &minw, 1, &minh);
258 edje_object_size_min_restricted_calc(wd->slider, &minw, &minh, minw, minh);
259 elm_coords_finger_size_adjust(1, &minw, 1, &minh);
260 evas_object_size_hint_min_set(obj, minw, minh);
261 evas_object_size_hint_max_set(obj, maxw, maxh);
265 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
267 Widget_Data *wd = elm_widget_data_get(data);
269 if ((obj != wd->icon) && (obj != wd->end)) return;
274 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
276 Widget_Data *wd = elm_widget_data_get(obj);
277 Evas_Object *sub = event_info;
281 edje_object_signal_emit(wd->slider, "elm,state,icon,hidden", "elm");
282 evas_object_event_callback_del_full
283 (sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, obj);
285 edje_object_message_signal_process(wd->slider);
290 edje_object_signal_emit(wd->slider, "elm,state,end,hidden", "elm");
291 evas_object_event_callback_del_full(sub,
292 EVAS_CALLBACK_CHANGED_SIZE_HINTS,
293 _changed_size_hints, obj);
295 edje_object_message_signal_process(wd->slider);
301 _delay_change(void *data)
303 Widget_Data *wd = elm_widget_data_get(data);
304 if (!wd) return ECORE_CALLBACK_CANCEL;
306 evas_object_smart_callback_call(data, SIG_DELAY_CHANGED, NULL);
307 return ECORE_CALLBACK_CANCEL;
311 _val_fetch(Evas_Object *obj)
314 Widget_Data *wd = elm_widget_data_get(obj);
315 double posx = 0.0, posy = 0.0, pos = 0.0, val;
317 edje_object_part_drag_value_get(wd->slider, "elm.dragable.slider",
319 if (wd->horizontal) pos = posx;
322 rtl = elm_widget_mirrored_get(obj);
323 if ((!rtl && wd->inverted) || (rtl &&
324 ((!wd->horizontal && wd->inverted) ||
325 (wd->horizontal && !wd->inverted)))) pos = 1.0 - pos;
326 val = (pos * (wd->val_max - wd->val_min)) + wd->val_min;
330 evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
331 if (wd->delay) ecore_timer_del(wd->delay);
332 wd->delay = ecore_timer_add(0.2, _delay_change, obj);
337 _val_set(Evas_Object *obj)
340 Widget_Data *wd = elm_widget_data_get(obj);
343 if (wd->val_max > wd->val_min)
344 pos = (wd->val - wd->val_min) / (wd->val_max - wd->val_min);
347 if (pos < 0.0) pos = 0.0;
348 else if (pos > 1.0) pos = 1.0;
350 rtl = elm_widget_mirrored_get(obj);
351 if ((!rtl && wd->inverted) || (rtl &&
352 ((!wd->horizontal && wd->inverted) ||
353 (wd->horizontal && !wd->inverted)))) pos = 1.0 - pos;
354 edje_object_part_drag_value_set(wd->slider, "elm.dragable.slider", pos, pos);
358 _units_set(Evas_Object *obj)
360 Widget_Data *wd = elm_widget_data_get(obj);
366 snprintf(buf, sizeof(buf), wd->units, wd->val);
367 edje_object_part_text_set(wd->slider, "elm.units", buf);
370 edje_object_part_text_set(wd->slider, "elm.units", NULL);
374 _indicator_set(Evas_Object *obj)
376 Widget_Data *wd = elm_widget_data_get(obj);
378 if (wd->indicator_format_func)
381 buf = wd->indicator_format_func(wd->val);
382 edje_object_part_text_set(wd->slider, "elm.dragable.slider:elm.indicator", buf);
384 else if (wd->indicator)
387 snprintf(buf, sizeof(buf), wd->indicator, wd->val);
388 edje_object_part_text_set(wd->slider, "elm.dragable.slider:elm.indicator", buf);
391 edje_object_part_text_set(wd->slider, "elm.dragable.slider:elm.indicator", NULL);
395 _drag(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
399 _indicator_set(data);
403 _drag_start(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
406 evas_object_smart_callback_call(data, SIG_DRAG_START, NULL);
408 _indicator_set(data);
409 elm_widget_scroll_hold_push(data);
413 _drag_stop(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
416 evas_object_smart_callback_call(data, SIG_DRAG_STOP, NULL);
418 _indicator_set(data);
419 elm_widget_scroll_hold_pop(data);
423 _drag_step(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
427 _indicator_set(data);
431 _drag_up(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
436 wd = elm_widget_data_get(data);
439 if (wd->inverted) step *= ELM_SLIDER_INVERTED_FACTOR;
441 edje_object_part_drag_step(wd->slider, "elm.dragable.slider", step, step);
445 _drag_down(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
450 wd = elm_widget_data_get(data);
453 if (wd->inverted) step *= ELM_SLIDER_INVERTED_FACTOR;
455 edje_object_part_drag_step(wd->slider, "elm.dragable.slider", step, step);
459 _spacer_cb(void *data, Evas *e, Evas_Object *obj __UNUSED__, void *event_info)
461 Widget_Data *wd = elm_widget_data_get(data);
462 Evas_Event_Mouse_Down *ev = event_info;
463 Evas_Coord x, y, w, h;
464 double button_x, button_y;
466 evas_object_geometry_get(wd->spacer, &x, &y, &w, &h);
467 edje_object_part_drag_value_get(wd->slider, "elm.dragable.slider", &button_x, &button_y);
470 button_x = ((double)ev->output.x - (double)x) / (double)w;
471 if (button_x > 1) button_x = 1;
472 if (button_x < 0) button_x = 0;
476 button_y = ((double)ev->output.y - (double)y) / (double)h;
477 if (button_y > 1) button_y = 1;
478 if (button_y < 0) button_y = 0;
480 edje_object_part_drag_value_set(wd->slider, "elm.dragable.slider", button_x, button_y);
481 evas_event_feed_mouse_cancel(e, 0, NULL);
482 evas_event_feed_mouse_down(e, 1, EVAS_BUTTON_NONE, 0, NULL);
486 * Add a new slider to the parent
488 * @param parent The parent object
489 * @return The new object or NULL if it cannot be created
494 elm_slider_add(Evas_Object *parent)
500 EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
502 wd = ELM_NEW(Widget_Data);
503 e = evas_object_evas_get(parent);
505 obj = elm_widget_add(e);
506 ELM_SET_WIDTYPE(widtype, "slider");
507 elm_widget_type_set(obj, "slider");
508 elm_widget_sub_object_add(parent, obj);
509 elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
510 elm_widget_data_set(obj, wd);
511 elm_widget_del_hook_set(obj, _del_hook);
512 elm_widget_theme_hook_set(obj, _theme_hook);
513 elm_widget_disable_hook_set(obj, _disable_hook);
514 elm_widget_can_focus_set(obj, EINA_TRUE);
515 elm_widget_event_hook_set(obj, _event_hook);
517 wd->horizontal = EINA_TRUE;
518 wd->indicator_show = EINA_TRUE;
523 wd->slider = edje_object_add(e);
524 _elm_theme_object_set(obj, wd->slider, "slider", "horizontal", "default");
525 elm_widget_resize_object_set(obj, wd->slider);
526 edje_object_signal_callback_add(wd->slider, "drag", "*", _drag, obj);
527 edje_object_signal_callback_add(wd->slider, "drag,start", "*", _drag_start, obj);
528 edje_object_signal_callback_add(wd->slider, "drag,stop", "*", _drag_stop, obj);
529 edje_object_signal_callback_add(wd->slider, "drag,step", "*", _drag_step, obj);
530 edje_object_signal_callback_add(wd->slider, "drag,page", "*", _drag_stop, obj);
531 // edje_object_signal_callback_add(wd->slider, "drag,set", "*", _drag_stop, obj);
532 edje_object_part_drag_value_set(wd->slider, "elm.dragable.slider", 0.0, 0.0);
534 wd->spacer = evas_object_rectangle_add(e);
535 evas_object_color_set(wd->spacer, 0, 0, 0, 0);
536 evas_object_pass_events_set(wd->spacer, EINA_TRUE);
537 elm_widget_sub_object_add(obj, wd->spacer);
538 edje_object_part_swallow(wd->slider, "elm.swallow.bar", wd->spacer);
539 evas_object_event_callback_add(wd->spacer, EVAS_CALLBACK_MOUSE_DOWN, _spacer_cb, obj);
540 evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
542 _mirrored_set(obj, elm_widget_mirrored_get(obj));
545 // TODO: convert Elementary to subclassing of Evas_Smart_Class
546 // TODO: and save some bytes, making descriptions per-class and not instance!
547 evas_object_smart_callbacks_descriptions_set(obj, _signals);
552 * Set the label of the slider
554 * @param obj The slider object
555 * @param label The text label string in UTF-8
560 elm_slider_label_set(Evas_Object *obj, const char *label)
562 ELM_CHECK_WIDTYPE(obj, widtype);
563 Widget_Data *wd = elm_widget_data_get(obj);
565 eina_stringshare_replace(&wd->label, label);
568 edje_object_signal_emit(wd->slider, "elm,state,text,visible", "elm");
569 edje_object_message_signal_process(wd->slider);
573 edje_object_signal_emit(wd->slider, "elm,state,text,hidden", "elm");
574 edje_object_message_signal_process(wd->slider);
576 edje_object_part_text_set(wd->slider, "elm.text", label);
581 * Get the label of the slider
583 * @param obj The slider object
584 * @return The text label string in UTF-8
589 elm_slider_label_get(const Evas_Object *obj)
591 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
592 Widget_Data *wd = elm_widget_data_get(obj);
593 if (!wd) return NULL;
598 * Set the icon object (leftmost widget) of the slider object.
600 * Once the icon object is set, a previously set one will be deleted.
601 * If you want to keep that old content object, use the
602 * elm_slider_icon_unset() function.
604 * @param obj The slider object
605 * @param icon The icon object
607 * @note If the object being set does not have minimum size hints set,
608 * it won't get properly displayed.
613 elm_slider_icon_set(Evas_Object *obj, Evas_Object *icon)
615 ELM_CHECK_WIDTYPE(obj, widtype);
616 Widget_Data *wd = elm_widget_data_get(obj);
618 if (wd->icon == icon) return;
619 if (wd->icon) evas_object_del(wd->icon);
623 elm_widget_sub_object_add(obj, icon);
624 evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
625 _changed_size_hints, obj);
626 edje_object_part_swallow(wd->slider, "elm.swallow.icon", icon);
627 edje_object_signal_emit(wd->slider, "elm,state,icon,visible", "elm");
628 edje_object_message_signal_process(wd->slider);
634 * Unset the leftmost widget of the slider, unparenting and
637 * @param obj The slider object
638 * @return the previously set icon sub-object of this slider, on
641 * @see elm_slider_icon_set()
646 elm_slider_icon_unset(Evas_Object *obj)
648 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
649 Widget_Data *wd = elm_widget_data_get(obj);
650 Evas_Object *ret = NULL;
651 if (!wd) return NULL;
654 elm_widget_sub_object_del(obj, wd->icon);
656 edje_object_part_unswallow(wd->slider, wd->icon);
657 edje_object_signal_emit(wd->slider, "elm,state,icon,hidden", "elm");
665 * Get the icon object of the slider object. This object is owned by
666 * the scrolled entry and should not be modified.
668 * @param obj The slider object
669 * @return The icon object
674 elm_slider_icon_get(const Evas_Object *obj)
676 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
677 Widget_Data *wd = elm_widget_data_get(obj);
678 if (!wd) return NULL;
683 * Set the length of the dragable region of the slider
685 * This sets the minimum width or height (depending on orientation) of the
686 * area of the slider that allows the slider to be dragged around. This in
687 * turn affects the objects minimum size (along with icon label and unit
688 * text). Note that this will also get multiplied by the scale factor.
690 * @param obj The slider object
691 * @param size The length of the slider area
696 elm_slider_span_size_set(Evas_Object *obj, Evas_Coord size)
698 ELM_CHECK_WIDTYPE(obj, widtype);
699 Widget_Data *wd = elm_widget_data_get(obj);
701 if (wd->size == size) return;
704 evas_object_size_hint_min_set(wd->spacer, (double)wd->size * elm_widget_scale_get(obj) * _elm_config->scale, 1);
706 evas_object_size_hint_min_set(wd->spacer, 1, (double)wd->size * elm_widget_scale_get(obj) * _elm_config->scale);
707 if (wd->indicator_show)
708 edje_object_signal_emit(wd->slider, "elm,state,val,show", "elm");
710 edje_object_signal_emit(wd->slider, "elm,state,val,hide", "elm");
711 edje_object_part_swallow(wd->slider, "elm.swallow.bar", wd->spacer);
716 * Get the length of the dragable region of the slider
718 * This gets the minimum width or height (depending on orientation) of
719 * the area of the slider that allows the slider to be dragged
720 * around. Note that this will also get multiplied by the scale
723 * @param obj The slider object
724 * @return The length of the slider area
729 elm_slider_span_size_get(const Evas_Object *obj)
731 ELM_CHECK_WIDTYPE(obj, widtype) 0;
732 Widget_Data *wd = elm_widget_data_get(obj);
738 * Set the format string of the unit area
740 * If NULL, this disabls the unit area display. If not it sets the format
741 * string for the unit text. The unit text is provided a floating point
742 * value, so the unit text can display up to 1 floating point value. Note that
743 * this is optional. Use a format string such as "%1.2f meters" for example.
745 * @param obj The slider object
746 * @param units The format string for the units display
751 elm_slider_unit_format_set(Evas_Object *obj, const char *units)
753 ELM_CHECK_WIDTYPE(obj, widtype);
754 Widget_Data *wd = elm_widget_data_get(obj);
756 eina_stringshare_replace(&wd->units, units);
759 edje_object_signal_emit(wd->slider, "elm,state,units,visible", "elm");
760 edje_object_message_signal_process(wd->slider);
764 edje_object_signal_emit(wd->slider, "elm,state,units,hidden", "elm");
765 edje_object_message_signal_process(wd->slider);
772 * Get the format string for the unit area
774 * The slider may also display a value (the value of the slider) somewhere
775 * (for example above the slider knob that is dragged around). This sets the
776 * format string for this. See elm_slider_unit_format_set() for more
777 * information on how this works.
779 * @param obj The slider object
780 * @return The format string for the unit display.
785 elm_slider_unit_format_get(const Evas_Object *obj)
787 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
788 Widget_Data *wd = elm_widget_data_get(obj);
789 if (!wd) return NULL;
794 * Set the format string for the indicator area
796 * The slider may also display a value (the value of the slider) somewhere
797 * (for example above the slider knob that is dragged around). This sets the
798 * format string for this. See elm_slider_unit_format_set() for more
799 * information on how this works.
801 * @param obj The slider object
802 * @param indicator The format string for the indicator display
807 elm_slider_indicator_format_set(Evas_Object *obj, const char *indicator)
809 ELM_CHECK_WIDTYPE(obj, widtype);
810 Widget_Data *wd = elm_widget_data_get(obj);
812 eina_stringshare_replace(&wd->indicator, indicator);
817 * Get the format string for the indicator area
819 * The slider may also display a value (the value of the slider) somewhere
820 * (for example above the slider knob that is dragged around). This sets the
821 * format string for this. See elm_slider_indicator_format_set() for more
822 * information on how this works.
824 * @param obj The slider object
825 * @return The format string for the indicator display.
830 elm_slider_indicator_format_get(const Evas_Object *obj)
832 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
833 Widget_Data *wd = elm_widget_data_get(obj);
834 if (!wd) return NULL;
835 return wd->indicator;
839 * Set orientation of the slider
841 * @param obj The slider object
842 * @param horizontal If set, the slider will be horizontal
847 elm_slider_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
849 ELM_CHECK_WIDTYPE(obj, widtype);
850 Widget_Data *wd = elm_widget_data_get(obj);
852 horizontal = !!horizontal;
853 if (wd->horizontal == horizontal) return;
854 wd->horizontal = horizontal;
859 * Get orientation of the slider
861 * @param obj The slider object
862 * @return If @c EINA_TRUE the slider will be horizontal, else it is
867 elm_slider_horizontal_get(const Evas_Object *obj)
869 ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
870 Widget_Data *wd = elm_widget_data_get(obj);
871 if (!wd) return EINA_FALSE;
872 return wd->horizontal;
876 * Set the minimum and maximum values for the slider
878 * Maximum mut be greater than minimum.
880 * @param obj The slider object
881 * @param min The minimum value
882 * @param max The maximum value
887 elm_slider_min_max_set(Evas_Object *obj, double min, double max)
889 ELM_CHECK_WIDTYPE(obj, widtype);
890 Widget_Data *wd = elm_widget_data_get(obj);
892 if ((wd->val_min == min) && (wd->val_max == max)) return;
895 if (wd->val < wd->val_min) wd->val = wd->val_min;
896 if (wd->val > wd->val_max) wd->val = wd->val_max;
903 * Get the minimum and maximum values for the slider
905 * @param obj The slider object
906 * @param min The pointer to store minimum value, may be @c NULL.
907 * @param max The pointer to store maximum value, may be @c NULL.
912 elm_slider_min_max_get(const Evas_Object *obj, double *min, double *max)
916 ELM_CHECK_WIDTYPE(obj, widtype);
917 Widget_Data *wd = elm_widget_data_get(obj);
919 if (min) *min = wd->val_min;
920 if (max) *max = wd->val_max;
924 * Set the value the slider indicates
926 * @param obj The slider object
927 * @param val The value (must be between min and max for the slider)
932 elm_slider_value_set(Evas_Object *obj, double val)
934 ELM_CHECK_WIDTYPE(obj, widtype);
935 Widget_Data *wd = elm_widget_data_get(obj);
937 if (wd->val == val) return;
939 if (wd->val < wd->val_min) wd->val = wd->val_min;
940 if (wd->val > wd->val_max) wd->val = wd->val_max;
947 * Get the value the slider has
949 * @param obj The slider object
950 * @return The value of the slider
955 elm_slider_value_get(const Evas_Object *obj)
957 ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
958 Widget_Data *wd = elm_widget_data_get(obj);
964 * Invert the slider display
966 * Normally the slider will display and interpret values from low to high
967 * and when horizontal that is left to right. When vertical that is top
968 * to bottom. This inverts this (so from right to left or bottom to top) if
969 * inverted is set to 1.
971 * @param obj The slider object
972 * @param inverted The inverted flag. 1 == inverted, 0 == normal
977 elm_slider_inverted_set(Evas_Object *obj, Eina_Bool inverted)
979 ELM_CHECK_WIDTYPE(obj, widtype);
980 Widget_Data *wd = elm_widget_data_get(obj);
982 inverted = !!inverted;
983 if (wd->inverted == inverted) return;
984 wd->inverted = inverted;
986 edje_object_signal_emit(wd->slider, "elm,state,inverted,on", "elm");
988 edje_object_signal_emit(wd->slider, "elm,state,inverted,off", "elm");
989 edje_object_message_signal_process(wd->slider);
996 * Get if the slider display is inverted (backwards)
998 * @param obj The slider object
999 * @return If @c EINA_TRUE the slider will be inverted.
1003 elm_slider_inverted_get(const Evas_Object *obj)
1005 ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
1006 Widget_Data *wd = elm_widget_data_get(obj);
1007 if (!wd) return EINA_FALSE;
1008 return wd->inverted;
1012 * Set the format function pointer for the inducator area
1014 * Set the callback function to format the indicator string.
1015 * See elm_slider_indicator_format_set() for more info on how this works.
1017 * @param obj The slider object
1018 * @param indicator The format string for the indicator display
1019 * @param func The indicator format function
1024 elm_slider_indicator_format_function_set(Evas_Object *obj, const char *(*func)(double val))
1026 ELM_CHECK_WIDTYPE(obj, widtype);
1027 Widget_Data *wd = elm_widget_data_get(obj);
1029 wd->indicator_format_func = func;
1030 _indicator_set(obj);
1034 * Set the end object (rightmost widget) of the slider object.
1036 * Once the end object is set, a previously set one will be deleted.
1037 * If you want to keep that old content object, use the
1038 * elm_button_end_unset() function.
1040 * @param obj The slider object
1041 * @param end The end object
1043 * @note If the object being set does not have minimum size hints set,
1044 * it won't get properly displayed.
1049 elm_slider_end_set(Evas_Object *obj, Evas_Object *end)
1051 ELM_CHECK_WIDTYPE(obj, widtype);
1052 Widget_Data *wd = elm_widget_data_get(obj);
1054 if (wd->end == end) return;
1055 if (wd->end) evas_object_del(wd->end);
1059 elm_widget_sub_object_add(obj, end);
1060 evas_object_event_callback_add(end, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
1061 _changed_size_hints, obj);
1062 edje_object_part_swallow(wd->slider, "elm.swallow.end", end);
1063 edje_object_signal_emit(wd->slider, "elm,state,end,visible", "elm");
1064 edje_object_message_signal_process(wd->slider);
1070 * Unset the rightmost widget of the slider, unparenting and
1073 * @param obj The slider object
1074 * @return the previously set end sub-object of this slider, on
1077 * @see elm_slider_end_set()
1082 elm_slider_end_unset(Evas_Object *obj)
1084 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1085 Widget_Data *wd = elm_widget_data_get(obj);
1086 Evas_Object *ret = NULL;
1087 if (!wd) return NULL;
1090 elm_widget_sub_object_del(obj, wd->end);
1092 edje_object_part_unswallow(wd->slider, wd->end);
1093 edje_object_signal_emit(wd->slider, "elm,state,end,hidden", "elm");
1101 * Get the end icon object of the slider object. This object is owned
1102 * by the scrolled entry and should not be modified.
1104 * @param obj The slider object
1105 * @return The end icon object
1110 elm_slider_end_get(const Evas_Object *obj)
1112 ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1113 Widget_Data *wd = elm_widget_data_get(obj);
1114 if (!wd) return NULL;
1119 * Set whether to the slider indicator (augmented knob) at all.
1121 * @param obj The slider object
1122 * @param show @c EINA_TRUE will make it show it, @c EINA_FALSE will
1123 * let the knob alwayes at default size.
1125 * @note It will conflict with elm_slider_indicator_format_set(), if
1126 * you wanted those effects.
1131 elm_slider_indicator_show_set(Evas_Object *obj, Eina_Bool show)
1133 ELM_CHECK_WIDTYPE(obj, widtype);
1134 Widget_Data *wd = elm_widget_data_get(obj);
1136 wd->indicator_show = EINA_TRUE;
1137 edje_object_signal_emit(wd->slider, "elm,state,val,show", "elm");
1140 wd->indicator_show = EINA_FALSE;
1141 edje_object_signal_emit(wd->slider, "elm,state,val,hide", "elm");
1146 * Get the state of indicator in the slider (if it's being shown or
1149 * @param obj The slider object
1150 * @return @c EINA_TRUE if the indicator is being shown, @c EINA_FALSE
1156 elm_slider_indicator_show_get(const Evas_Object *obj)
1158 ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
1159 Widget_Data *wd = elm_widget_data_get(obj);
1160 if (!wd) return EINA_FALSE;
1161 return wd->indicator_show;