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More scrollbar work (callbacks and accessors). 

there's a problem with getting the values. FIXME included.


SVN revision: 17181
This commit is contained in:
codewarrior 2005-10-05 00:40:06 +00:00 committed by codewarrior
parent 2b7cbc4b44
commit e4c7ca2f72
2 changed files with 156 additions and 15 deletions
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142
src/bin/e_scrollbar.c
View File

@ -16,11 +16,14 @@ struct _E_Scrollbar_Smart_Data
Evas_Object *edje_object;
struct {
double min;
double max;
double min;
double max;
double current;
} value;
E_Scrollbar_Direction direction;
Evas_List *callbacks;
};
static void _e_scrollbar_smart_add(Evas_Object *object);
@ -33,7 +36,8 @@ static void _e_scrollbar_smart_move(Evas_Object *object, Evas_Coord x, Evas_Coor
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 void _e_scrollbar_drag_cb (void *data, Evas_Object *object, const char *emission, const char *source);
static Evas_Smart *e_scrollbar_smart = NULL;
Evas_Object *
@ -99,6 +103,104 @@ e_scrollbar_direction_get(Evas_Object *object)
return scrollbar_sd->direction;
}
void
e_scrollbar_callback_drag_add (Evas_Object *object, void (*func) (Evas_Object *obj, double value, void *data), void *data)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
E_Scrollbar_Drag_Handler *handler;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
handler = E_NEW(E_Scrollbar_Drag_Handler, 1);
handler->data = data;
handler->cb.drag = func;
scrollbar_sd->callbacks = evas_list_append(scrollbar_sd->callbacks, handler);
}
void
e_scrollbar_value_set (Evas_Object *object, double value)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
scrollbar_sd->value.current = value;
if (scrollbar_sd->direction == E_SCROLLBAR_HORIZONTAL)
edje_object_part_drag_value_set (scrollbar_sd->edje_object, "drag", value, 0);
else
edje_object_part_drag_value_set (scrollbar_sd->edje_object, "drag", 0, value);
}
double
e_scrollbar_value_get (Evas_Object *object)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
double dx, dy;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
/* FIXME:
* we have a problem here. if we printf the dx and dy we get 0
*/
edje_object_part_drag_value_get (scrollbar_sd->edje_object, "drag", &dx, &dy);
if (scrollbar_sd->direction == E_SCROLLBAR_HORIZONTAL)
scrollbar_sd->value.current = dx;
else
scrollbar_sd->value.current = dy;
return scrollbar_sd->value.current;
}
void
e_scrollbar_increments_set (Evas_Object *object, double step, double page)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
if (scrollbar_sd->direction == E_SCROLLBAR_HORIZONTAL)
{
edje_object_part_drag_step_set (scrollbar_sd->edje_object, "drag", step, 0);
edje_object_part_drag_page_set (scrollbar_sd->edje_object, "drag", page, 0);
} else {
edje_object_part_drag_step_set (scrollbar_sd->edje_object, "drag", 0, step);
edje_object_part_drag_page_set (scrollbar_sd->edje_object, "drag", 0, page);
}
}
void
e_scrollbar_increments_get (Evas_Object *object, double *step, double *page)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
double stepx; double stepy;
double pagex; double pagey;
if ((!object) || !(scrollbar_sd = evas_object_smart_data_get(object)))
return;
edje_object_part_drag_step_get (scrollbar_sd->edje_object, "drag", &stepx, &stepy);
edje_object_part_drag_page_get (scrollbar_sd->edje_object, "drag", &pagex, &pagey);
if (scrollbar_sd->direction == E_SCROLLBAR_HORIZONTAL)
{
*step = stepx;
*page = pagex;
} else {
*step = stepy;
*page = pagey;
}
}
/**************************
* Private functions
**************************/
@ -116,14 +218,14 @@ _e_scrollbar_smart_add(Evas_Object *object)
if (!scrollbar_sd) return;
scrollbar_sd->value.min = 0.0;
scrollbar_sd->value.max = 1.0;
scrollbar_sd->callbacks = NULL;
scrollbar_sd->direction = E_SCROLLBAR_HORIZONTAL;
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_HORIZONTAL;
edje_object_signal_callback_add(scrollbar_sd->edje_object, "drag", "*", _e_scrollbar_drag_cb, scrollbar_sd);
evas_object_data_set (scrollbar_sd->edje_object, "smart", object);
evas_object_smart_member_add(scrollbar_sd->edje_object, object);
evas_object_smart_data_set(object, scrollbar_sd);
@ -233,3 +335,27 @@ _e_scrollbar_smart_hide(Evas_Object *object)
evas_object_hide(scrollbar_sd->edje_object);
}
static void
_e_scrollbar_drag_cb (void *data, Evas_Object *object, const char *emission, const char *source)
{
E_Scrollbar_Smart_Data *scrollbar_sd;
Evas_Object *smart_object;
Evas_List *l;
if ((!object) || !(smart_object = evas_object_data_get(object, "smart")))
return;
scrollbar_sd = evas_object_smart_data_get(smart_object);
if (!scrollbar_sd)
return;
scrollbar_sd->value.current = e_scrollbar_value_get (object);
for (l = scrollbar_sd->callbacks; l; l = l->next)
{
E_Scrollbar_Drag_Handler *handler;
handler = l->data;
handler->cb.drag (smart_object, scrollbar_sd->value.current, handler->data);
}
}

29
src/bin/e_scrollbar.h
View File

@ -3,20 +3,35 @@
*/
#ifdef E_TYPEDEFS
typedef enum _E_Scrollbar_Direction
{
E_SCROLLBAR_HORIZONTAL,
E_SCROLLBAR_VERTICAL
} E_Scrollbar_Direction;
typedef struct _E_Scrollbar_Drag_Handler E_Scrollbar_Drag_Handler;
typedef enum _E_Scrollbar_Direction E_Scrollbar_Direction;
#else
#ifndef E_SCROLLBAR_H
#define E_SCROLLBAR_H
struct _E_Scrollbar_Drag_Handler
{
void *data;
struct {
void (*drag)(Evas_Object *obj, double value, void *data);
} cb;
};
enum _E_Scrollbar_Direction
{
E_SCROLLBAR_HORIZONTAL,
E_SCROLLBAR_VERTICAL
};
EAPI Evas_Object *e_scrollbar_add(Evas *evas);
EAPI void e_scrollbar_direction_set(Evas_Object *object,
E_Scrollbar_Direction dir);
EAPI void e_scrollbar_direction_set(Evas_Object *object, E_Scrollbar_Direction dir);
EAPI E_Scrollbar_Direction e_scrollbar_direction_get(Evas_Object *object);
EAPI void e_scrollbar_callback_drag_add (Evas_Object *object, void (*func)(Evas_Object *obj, double value, void *data), void *data);
EAPI void e_scrollbar_value_set (Evas_Object *object, double value);
EAPI double e_scrollbar_value_get (Evas_Object *object);
EAPI void e_scrollbar_increments_set (Evas_Object *object, double step, double page);
EAPI void e_scrollbar_increments_get (Evas_Object *object, double *step, double *page);
#endif
#endif