efl/legacy/elementary/src/lib/elm_actionslider.c

625 lines
19 KiB
C

/**
* @addtogroup Actionslider Actionslider
*
* A actionslider is a switcher for 3 labels with customizable
* magnet properties. When the position is set with magnet, the knob
* will be moved to it if it's nearest the magnetized position.
*
* Signals that you can add callbacks for are:
*
* "selected" - when user selects a position (the label is passed as
* event info)".
* "pos_changed" - when a button reaches to the special position like
* "left", "right" and "center".
*/
#include <Elementary.h>
#include <math.h>
#include "elm_priv.h"
typedef struct _Widget_Data Widget_Data;
struct _Widget_Data
{
Evas_Object *as; // actionslider
Evas_Object *drag_button_base;
Elm_Actionslider_Pos magnet_position, enabled_position;
const char *text_left, *text_right, *text_center;
const char *indicator_label;
Ecore_Animator *button_animator;
double final_position;
Eina_Bool mouse_down : 1;
};
static const char *widtype = NULL;
static const char SIG_CHANGED[] = "pos_changed";
static const char SIG_SELECTED[] = "selected";
static const Evas_Smart_Cb_Description _signals[] =
{
{SIG_CHANGED, ""},
{SIG_SELECTED, ""},
{NULL, NULL}
};
static void
_del_hook(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (wd->drag_button_base)
{
evas_object_del(wd->drag_button_base);
wd->drag_button_base = NULL;
}
if (wd->text_left) eina_stringshare_del(wd->text_left);
if (wd->text_right) eina_stringshare_del(wd->text_right);
if (wd->text_center) eina_stringshare_del(wd->text_center);
if (wd->indicator_label) eina_stringshare_del(wd->indicator_label);
free(wd);
}
static Elm_Actionslider_Pos
_get_pos_by_orientation(const Evas_Object *obj, Elm_Actionslider_Pos pos)
{
if (elm_widget_mirrored_get(obj))
{
switch (pos)
{
case ELM_ACTIONSLIDER_LEFT:
pos = ELM_ACTIONSLIDER_RIGHT;
break;
case ELM_ACTIONSLIDER_RIGHT:
pos = ELM_ACTIONSLIDER_LEFT;
break;
default:
break;
}
}
return pos;
}
static void
_mirrored_set(Evas_Object *obj, Eina_Bool rtl)
{
Widget_Data *wd = elm_widget_data_get(obj);
double pos;
if (!wd) return;
if (edje_object_mirrored_get(wd->as) == rtl)
return;
edje_object_mirrored_set(wd->as, rtl);
if (!elm_widget_mirrored_get(obj))
{
edje_object_part_text_set(wd->as, "elm.text.left", wd->text_left);
edje_object_part_text_set(wd->as, "elm.text.right", wd->text_right);
}
else
{
edje_object_part_text_set(wd->as, "elm.text.left", wd->text_right);
edje_object_part_text_set(wd->as, "elm.text.right", wd->text_left);
}
edje_object_part_drag_value_get(wd->as, "elm.drag_button_base", &pos, NULL);
edje_object_part_drag_value_set(wd->as, "elm.drag_button_base", 1.0 - pos, 0.5);
}
static void
_sizing_eval(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
Evas_Coord minw = -1, minh = -1;
if (!wd) return;
elm_coords_finger_size_adjust(1, &minw, 1, &minh);
evas_object_size_hint_min_set(wd->drag_button_base, minw, minh);
evas_object_size_hint_max_set(wd->drag_button_base, -1, -1);
minw = -1;
minh = -1;
elm_coords_finger_size_adjust(3, &minw, 1, &minh);
edje_object_size_min_restricted_calc(wd->as, &minw, &minh, minw, minh);
evas_object_size_hint_min_set(obj, minw, minh);
evas_object_size_hint_max_set(obj, -1, -1);
}
static void
_theme_hook(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
_elm_widget_mirrored_reload(obj);
if (!edje_object_part_swallow_get(wd->as, "elm.drag_button_base"))
edje_object_part_unswallow(wd->as, wd->drag_button_base);
_elm_theme_object_set(obj, wd->as, "actionslider",
"base", elm_widget_style_get(obj));
_elm_theme_object_set(obj, wd->drag_button_base, "actionslider",
"drag_button", elm_widget_style_get(obj));
edje_object_part_swallow(wd->as, "elm.drag_button_base", wd->drag_button_base);
_mirrored_set(obj, elm_widget_mirrored_get(obj));
edje_object_part_text_set(wd->as, "elm.text.center", wd->text_center);
edje_object_part_text_set(wd->as, "elm.text.indicator", wd->indicator_label);
edje_object_message_signal_process(wd->as);
_sizing_eval(obj);
}
static void
_drag_button_down_cb(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
{
Widget_Data *wd = elm_widget_data_get((Evas_Object *) data);
if (!wd) return;
wd->mouse_down = EINA_TRUE;
}
static void
_drag_button_move_cb(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
{
Evas_Object *obj = (Evas_Object *) data;
Widget_Data *wd = elm_widget_data_get(obj);
double pos = 0.0;
if (!wd) return;
if (!wd->mouse_down) return;
edje_object_part_drag_value_get(wd->as, "elm.drag_button_base", &pos, NULL);
if (pos == 0.0)
evas_object_smart_callback_call(obj, SIG_CHANGED,
(void *) ((!elm_widget_mirrored_get(obj)) ?
"left" : "right"));
else if (pos == 1.0)
evas_object_smart_callback_call(obj, SIG_CHANGED,
(void *) ((!elm_widget_mirrored_get(obj)) ?
"right" : "left"));
else if (pos >= 0.45 && pos <= 0.55)
evas_object_smart_callback_call(obj, SIG_CHANGED, (void *)"center");
}
static Eina_Bool
_button_animation(void *data)
{
Evas_Object *obj = data;
Widget_Data *wd = elm_widget_data_get(obj);
double cur_position = 0.0, new_position = 0.0;
double move_amount = 0.05;
Eina_Bool flag_finish_animation = EINA_FALSE;
if (!wd) return EINA_FALSE;
edje_object_part_drag_value_get(wd->as,
"elm.drag_button_base", &cur_position, NULL);
{
double adjusted_final;
adjusted_final = (!elm_widget_mirrored_get(obj)) ?
wd->final_position : 1.0 - wd->final_position;
if ((adjusted_final == 0.0) ||
(adjusted_final == 0.5 && cur_position >= adjusted_final))
{
new_position = cur_position - move_amount;
if (new_position <= adjusted_final)
{
new_position = adjusted_final;
flag_finish_animation = EINA_TRUE;
}
}
else if ((adjusted_final == 1.0) ||
(adjusted_final == 0.5 && cur_position < adjusted_final))
{
new_position = cur_position + move_amount;
if (new_position >= adjusted_final)
{
new_position = adjusted_final;
flag_finish_animation = EINA_TRUE;
}
}
edje_object_part_drag_value_set(wd->as,
"elm.drag_button_base", new_position, 0.5);
}
if (flag_finish_animation)
{
if ((!wd->final_position) &&
(wd->enabled_position & ELM_ACTIONSLIDER_LEFT))
evas_object_smart_callback_call(data, SIG_SELECTED,
(void *)wd->text_left);
else if ((wd->final_position == 0.5) &&
(wd->enabled_position & ELM_ACTIONSLIDER_CENTER))
evas_object_smart_callback_call(data, SIG_SELECTED,
(void *)wd->text_center);
else if ((wd->final_position == 1) &&
(wd->enabled_position & ELM_ACTIONSLIDER_RIGHT))
evas_object_smart_callback_call(data, SIG_SELECTED,
(void *)wd->text_right);
return EINA_FALSE;
}
return EINA_TRUE;
}
static void
_drag_button_up_cb(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
{
Evas_Object *obj = (Evas_Object *) data;
Widget_Data *wd = elm_widget_data_get(obj);
double position = 0.0;
if (!wd) return;
wd->mouse_down = EINA_FALSE;
edje_object_part_drag_value_get(wd->as, "elm.drag_button_base",
&position, NULL);
if ((wd->enabled_position & ELM_ACTIONSLIDER_LEFT) &&
((!elm_widget_mirrored_get(obj) && position == 0.0) ||
(elm_widget_mirrored_get(obj) && position == 1.0)))
{
wd->final_position = 0;
evas_object_smart_callback_call(data, SIG_SELECTED,
(void *) wd->text_left);
return;
}
if (position >= 0.45 && position <= 0.55 &&
(wd->enabled_position & ELM_ACTIONSLIDER_CENTER))
{
wd->final_position = 0.5;
evas_object_smart_callback_call(data, SIG_SELECTED,
(void *)wd->text_center);
return;
}
if ((wd->enabled_position & ELM_ACTIONSLIDER_RIGHT) &&
((!elm_widget_mirrored_get(obj) && position == 1.0) ||
(elm_widget_mirrored_get(obj) && position == 0.0)))
{
wd->final_position = 1;
evas_object_smart_callback_call(data, SIG_SELECTED,
(void *) wd->text_right);
return;
}
if (wd->magnet_position == ELM_ACTIONSLIDER_NONE) return;
#define _FINAL_POS_BY_ORIENTATION(x) (x)
#define _POS_BY_ORIENTATION(x) \
((!elm_widget_mirrored_get(obj)) ? \
x : 1.0 - x)
position = _POS_BY_ORIENTATION(position);
if (position < 0.3)
{
if (wd->magnet_position & ELM_ACTIONSLIDER_LEFT)
wd->final_position = _FINAL_POS_BY_ORIENTATION(0);
else if (wd->magnet_position & ELM_ACTIONSLIDER_CENTER)
wd->final_position = 0.5;
else if (wd->magnet_position & ELM_ACTIONSLIDER_RIGHT)
wd->final_position = _FINAL_POS_BY_ORIENTATION(1);
}
else if ((position >= 0.3) && (position <= 0.7))
{
if (wd->magnet_position & ELM_ACTIONSLIDER_CENTER)
wd->final_position = 0.5;
else if (position < 0.5)
{
if (wd->magnet_position & ELM_ACTIONSLIDER_LEFT)
wd->final_position = _FINAL_POS_BY_ORIENTATION(0);
else
wd->final_position = _FINAL_POS_BY_ORIENTATION(1);
}
else
{
if (wd->magnet_position & ELM_ACTIONSLIDER_RIGHT)
wd->final_position = _FINAL_POS_BY_ORIENTATION(1);
else
wd->final_position = _FINAL_POS_BY_ORIENTATION(0);
}
}
else
{
if (wd->magnet_position & ELM_ACTIONSLIDER_RIGHT)
wd->final_position = _FINAL_POS_BY_ORIENTATION(1);
else if (wd->magnet_position & ELM_ACTIONSLIDER_CENTER)
wd->final_position = 0.5;
else
wd->final_position = _FINAL_POS_BY_ORIENTATION(0);
}
wd->button_animator = ecore_animator_add(_button_animation, data);
#undef _FINAL_POS_BY_ORIENTATION
}
/**
* Add a new actionslider to the parent.
*
* @param parent The parent object
* @return The new actionslider object or NULL if it cannot be created
*
* @ingroup Actionslider
*/
EAPI Evas_Object *
elm_actionslider_add(Evas_Object *parent)
{
Evas_Object *obj;
Widget_Data *wd;
Evas *e;
ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
ELM_SET_WIDTYPE(widtype, "actionslider");
elm_widget_type_set(obj, "actionslider");
elm_widget_sub_object_add(parent, obj);
elm_widget_data_set(obj, wd);
elm_widget_del_hook_set(obj, _del_hook);
elm_widget_theme_hook_set(obj, _theme_hook);
wd->mouse_down = EINA_FALSE;
wd->enabled_position = ELM_ACTIONSLIDER_ALL;
wd->as = edje_object_add(e);
_elm_theme_object_set(obj, wd->as, "actionslider", "base", "default");
elm_widget_resize_object_set(obj, wd->as);
wd->drag_button_base = evas_object_rectangle_add(e);
evas_object_color_set(wd->drag_button_base, 0, 0, 0, 0);
edje_object_part_swallow(wd->as, "elm.drag_button_base", wd->drag_button_base);
edje_object_signal_callback_add(wd->as,
"elm.drag_button,mouse,up", "",
_drag_button_up_cb, obj);
edje_object_signal_callback_add(wd->as,
"elm.drag_button,mouse,down", "",
_drag_button_down_cb, obj);
edje_object_signal_callback_add(wd->as,
"elm.drag_button,mouse,move", "",
_drag_button_move_cb, obj);
evas_object_smart_callbacks_descriptions_set(obj, _signals);
_mirrored_set(obj, elm_widget_mirrored_get(obj));
_sizing_eval(obj);
return obj;
}
/**
* Set actionslider indicator position.
*
* @param obj The actionslider object.
* @param pos The position of the indicator.
*
* @ingroup Actionslider
*/
EAPI void
elm_actionslider_indicator_pos_set(Evas_Object *obj, Elm_Actionslider_Pos pos)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
double position = 0.0;
if (!wd) return;
pos = _get_pos_by_orientation(obj, pos);
if (pos == ELM_ACTIONSLIDER_CENTER) position = 0.5;
else if (pos == ELM_ACTIONSLIDER_RIGHT) position = 1.0;
edje_object_part_drag_value_set(wd->as, "elm.drag_button_base", position, 0.5);
}
/**
* Get actionslider indicator position.
*
* @param obj The actionslider object.
* @return The position of the indicator.
*
* @ingroup Actionslider
*/
EAPI Elm_Actionslider_Pos
elm_actionslider_indicator_pos_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) ELM_ACTIONSLIDER_NONE;
Widget_Data *wd = elm_widget_data_get(obj);
double position;
if (!wd) return ELM_ACTIONSLIDER_NONE;
edje_object_part_drag_value_get(wd->as, "elm.drag_button_base", &position, NULL);
if (position < 0.3)
return _get_pos_by_orientation(obj, ELM_ACTIONSLIDER_LEFT);
else if (position < 0.7)
return ELM_ACTIONSLIDER_CENTER;
else
return _get_pos_by_orientation(obj, ELM_ACTIONSLIDER_RIGHT);
}
/**
* Set actionslider magnet position.
*
* @param obj The actionslider object.
* @param pos Bit mask indicating the magnet positions.
* Example: use (ELM_ACTIONSLIDER_LEFT | ELM_ACTIONSLIDER_RIGHT)
* to put magnet property on both positions
*
* @ingroup Actionslider
*/
EAPI void
elm_actionslider_magnet_pos_set(Evas_Object *obj, Elm_Actionslider_Pos pos)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
wd->magnet_position = pos;
}
/**
* Get actionslider magnet position.
*
* @param obj The actionslider object.
* @return The positions with magnet property.
*
* @ingroup Actionslider
*/
EAPI Elm_Actionslider_Pos
elm_actionslider_magnet_pos_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) ELM_ACTIONSLIDER_NONE;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return ELM_ACTIONSLIDER_NONE;
return wd->magnet_position;
}
/**
* Set actionslider enabled position.
*
* All the positions are enabled by default.
*
* @param obj The actionslider object.
* @param pos Bit mask indicating the enabled positions.
* Example: use (ELM_ACTIONSLIDER_LEFT | ELM_ACTIONSLIDER_RIGHT)
* to enable both positions, so the user can select it.
*
* @ingroup Actionslider
*/
EAPI void
elm_actionslider_enabled_pos_set(Evas_Object *obj, Elm_Actionslider_Pos pos)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
wd->enabled_position = pos;
}
/**
* Get actionslider enabled position.
*
* All the positions are enabled by default.
*
* @param obj The actionslider object.
* @return The enabled positions.
*
* @ingroup Actionslider
*/
EAPI Elm_Actionslider_Pos
elm_actionslider_enabled_pos_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) ELM_ACTIONSLIDER_NONE;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return ELM_ACTIONSLIDER_NONE;
return wd->enabled_position;
}
/**
* Set actionslider labels.
*
* @param obj The actionslider object
* @param left_label The label which is going to be set.
* @param center_label The label which is going to be set.
* @param right_label The label which is going to be set.
*
* @ingroup Actionslider
*/
EAPI void
elm_actionslider_labels_set(Evas_Object *obj, const char *left_label, const char *center_label, const char *right_label)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
eina_stringshare_replace(&wd->text_left, left_label);
eina_stringshare_replace(&wd->text_center, center_label);
eina_stringshare_replace(&wd->text_right, right_label);
if (!elm_widget_mirrored_get(obj))
{
edje_object_part_text_set(wd->as, "elm.text.left", wd->text_left);
edje_object_part_text_set(wd->as, "elm.text.right", wd->text_right);
}
else
{
edje_object_part_text_set(wd->as, "elm.text.left", wd->text_right);
edje_object_part_text_set(wd->as, "elm.text.right", wd->text_left);
}
edje_object_part_text_set(wd->as, "elm.text.center", center_label);
}
/**
* Get actionslider labels.
*
* @param obj The actionslider object
* @param left_label A char** to place the left_label of @p obj into
* @param center_label A char** to place the center_label of @p obj into
* @param right_label A char** to place the right_label of @p obj into
*
* @ingroup Actionslider
*/
EAPI void
elm_actionslider_labels_get(const Evas_Object *obj, const char **left_label, const char **center_label, const char **right_label)
{
if (left_label) *left_label= NULL;
if (center_label) *center_label= NULL;
if (right_label) *right_label= NULL;
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (left_label) *left_label = wd->text_left;
if (center_label) *center_label = wd->text_center;
if (right_label) *right_label = wd->text_right;
}
/**
* Get actionslider selected label.
*
* @param obj The actionslider object
* @return The selected label
*
* @ingroup Actionslider
*/
EAPI const char *
elm_actionslider_selected_label_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return NULL;
if ((wd->final_position == 0.0) &&
(wd->enabled_position & ELM_ACTIONSLIDER_LEFT))
return wd->text_left;
if ((wd->final_position == 0.5) &&
(wd->enabled_position & ELM_ACTIONSLIDER_CENTER))
return wd->text_center;
if ((wd->final_position == 1.0) &&
(wd->enabled_position & ELM_ACTIONSLIDER_RIGHT))
return wd->text_right;
return NULL;
}
/**
* Set the label used on the indicator object.
*
* @param obj The actionslider object
* @param label The label which is going to be set.
*
* @ingroup Actionslider
*/
EAPI void
elm_actionslider_indicator_label_set(Evas_Object *obj, const char *label)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
eina_stringshare_replace(&wd->indicator_label, label);
edje_object_part_text_set(wd->as, "elm.text.indicator", wd->indicator_label);
}
/**
* Get the label used on the indicator object.
*
* @param obj The actionslider object
* @return The indicator label
*
* @ingroup Actionslider
*/
EAPI const char *
elm_actionslider_indicator_label_get(Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return NULL;
return wd->indicator_label;
}