enlightenment/src/bin/e_scrollbar.c

236 lines
6.0 KiB
C

/*
* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
*/
#include "e.h"
/*
* TODO:
* - add event handlers for scrolling
* - add functions to set / get values and min / max
*/
typedef struct _E_Scrollbar_Smart_Data E_Scrollbar_Smart_Data;
struct _E_Scrollbar_Smart_Data
{
Evas_Object *edje_object;
struct {
double min;
double max;
} value;
E_Scrollbar_Direction direction;
};
static void _e_scrollbar_smart_add(Evas_Object *object);
static void _e_scrollbar_smart_del(Evas_Object *object);
static void _e_scrollbar_smart_raise(Evas_Object *object);
static void _e_scrollbar_smart_lower(Evas_Object *object);
static void _e_scrollbar_smart_stack_above(Evas_Object *object, Evas_Object *above);
static void _e_scrollbar_smart_stack_below(Evas_Object *object, Evas_Object *below);
static void _e_scrollbar_smart_move(Evas_Object *object, Evas_Coord x, Evas_Coord y);
static void _e_scrollbar_smart_resize(Evas_Object *object, Evas_Coord w, Evas_Coord h);
static void _e_scrollbar_smart_show(Evas_Object *object);
static void _e_scrollbar_smart_hide(Evas_Object *object);
static Evas_Smart *e_scrollbar_smart = NULL;
Evas_Object *
e_scrollbar_add(Evas *evas)
{
if (!e_scrollbar_smart)
{
e_scrollbar_smart = evas_smart_new("e_entry",
_e_scrollbar_smart_add, /* add */
_e_scrollbar_smart_del, /* del */
NULL, /* layer_set */
_e_scrollbar_smart_raise, /* raise */
_e_scrollbar_smart_lower, /* lower */
_e_scrollbar_smart_stack_above, /* stack_above */
_e_scrollbar_smart_stack_below, /* stack_below */
_e_scrollbar_smart_move, /* move */
_e_scrollbar_smart_resize, /* resize */
_e_scrollbar_smart_show, /* show */
_e_scrollbar_smart_hide, /* hide */
NULL, /* color_set */
NULL, /* clip_set */
NULL, /* clip_unset */
NULL); /* data*/
}
return evas_object_smart_add(evas, e_scrollbar_smart);
}
void
e_scrollbar_direction_set(Evas_Object *object, E_Scrollbar_Direction dir)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
if (scrollbar_sd->direction == dir)
return;
switch (dir)
{
case E_SCROLLBAR_HORISONTAL:
e_theme_edje_object_set(scrollbar_sd->edje_object,
"base/theme/widgets/hscrollbar",
"widgets/hscrollbar");
break;
case E_SCROLLBAR_VERTICAL:
e_theme_edje_object_set(scrollbar_sd->edje_object,
"base/theme/widgets/vscrollbar",
"widgets/vscrollbar");
break;
}
}
E_Scrollbar_Direction
e_scrollbar_direction_get(Evas_Object *object)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return E_SCROLLBAR_HORISONTAL;
return scrollbar_sd->direction;
}
/**************************
* Private functions
**************************/
static void
_e_scrollbar_smart_add(Evas_Object *object)
{
Evas *evas;
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(evas = evas_object_evas_get(object)))
return;
scrollbar_sd = calloc(1, sizeof(E_Scrollbar_Smart_Data));
if (!scrollbar_sd) return;
scrollbar_sd->value.min = 0.0;
scrollbar_sd->value.max = 1.0;
scrollbar_sd->edje_object = edje_object_add(evas);
e_theme_edje_object_set(scrollbar_sd->edje_object,
"base/theme/widgets/hscrollbar",
"widgets/hscrollbar");
scrollbar_sd->direction = E_SCROLLBAR_HORISONTAL;
evas_object_smart_member_add(scrollbar_sd->edje_object, object);
evas_object_smart_data_set(object, scrollbar_sd);
}
static void
_e_scrollbar_smart_del(Evas_Object *object)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
evas_object_del(scrollbar_sd->edje_object);
free(scrollbar_sd);
}
static void
_e_scrollbar_smart_raise(Evas_Object *object)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
evas_object_raise(scrollbar_sd->edje_object);
}
static void
_e_scrollbar_smart_lower(Evas_Object *object)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
evas_object_lower(scrollbar_sd->edje_object);
}
static void
_e_scrollbar_smart_stack_above(Evas_Object *object, Evas_Object *above)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || (!above) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
evas_object_stack_above(scrollbar_sd->edje_object, above);
}
/* Called when the object is stacked below another object */
static void
_e_scrollbar_smart_stack_below(Evas_Object *object, Evas_Object *below)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || (!below) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
evas_object_stack_below(scrollbar_sd->edje_object, below);
}
/* Called when the object is moved */
static void
_e_scrollbar_smart_move(Evas_Object *object, Evas_Coord x, Evas_Coord y)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
evas_object_move(scrollbar_sd->edje_object, x, y);
}
/* Called when the object is resized */
static void
_e_scrollbar_smart_resize(Evas_Object *object, Evas_Coord w, Evas_Coord h)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
evas_object_resize(scrollbar_sd->edje_object, w, h);
}
static void
_e_scrollbar_smart_show(Evas_Object *object)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
evas_object_show(scrollbar_sd->edje_object);
}
static void
_e_scrollbar_smart_hide(Evas_Object *object)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
evas_object_hide(scrollbar_sd->edje_object);
}