efl/legacy/elementary/src/lib/elm_widget_button.h

144 lines
4.4 KiB
C

#ifndef ELM_WIDGET_BUTTON_H
#define ELM_WIDGET_BUTTON_H
#include "elm_widget_layout.h"
/**
* @addtogroup Widget
* @{
*
* @section elm-button-class The Elementary Button Class
*
* Elementary, besides having the @ref Button widget, exposes its
* foundation -- the Elementary Button Class -- in order to create
* other widgets which are, basically, a button with some more logic
* on top.
*/
/**
* @def ELM_BUTTON_CLASS
*
* Use this macro to cast whichever subclass of
* #Elm_Button_Smart_Class into it, so to access its fields.
*
* @ingroup Widget
*/
#define ELM_BUTTON_CLASS(x) ((Elm_Button_Smart_Class *) x)
/**
* @def ELM_BUTTON_DATA
*
* Use this macro to cast whichever subdata of
* #Elm_Button_Smart_Data into it, so to access its fields.
*
* @ingroup Widget
*/
#define ELM_BUTTON_DATA(x) ((Elm_Button_Smart_Data *) x)
/**
* @def ELM_BUTTON_SMART_CLASS_VERSION
*
* Current version for Elementary button @b base smart class, a value
* which goes to _Elm_Button_Smart_Class::version.
*
* @ingroup Widget
*/
#define ELM_BUTTON_SMART_CLASS_VERSION 1
/**
* @def ELM_BUTTON_SMART_CLASS_INIT
*
* Initializer for a whole #Elm_Button_Smart_Class structure, with
* @c NULL values on its specific fields.
*
* @param smart_class_init initializer to use for the "base" field
* (#Evas_Smart_Class).
*
* @see EVAS_SMART_CLASS_INIT_NULL
* @see EVAS_SMART_CLASS_INIT_NAME_VERSION
* @see ELM_BUTTON_SMART_CLASS_INIT_NULL
* @see ELM_BUTTON_SMART_CLASS_INIT_NAME_VERSION
*
* @ingroup Widget
*/
#define ELM_BUTTON_SMART_CLASS_INIT(smart_class_init) \
{smart_class_init, ELM_BUTTON_SMART_CLASS_VERSION, EINA_TRUE}
/**
* @def ELM_BUTTON_SMART_CLASS_INIT_NULL
*
* Initializer to zero out a whole #Elm_Button_Smart_Class structure.
*
* @see ELM_BUTTON_SMART_CLASS_INIT_NAME_VERSION
* @see ELM_BUTTON_SMART_CLASS_INIT
*
* @ingroup Widget
*/
#define ELM_BUTTON_SMART_CLASS_INIT_NULL \
ELM_BUTTON_SMART_CLASS_INIT(EVAS_SMART_CLASS_INIT_NULL)
/**
* @def ELM_BUTTON_SMART_CLASS_INIT_NAME_VERSION
*
* Initializer to zero out a whole #Elm_Button_Smart_Class structure and
* set its name and version.
*
* This is similar to #ELM_BUTTON_SMART_CLASS_INIT_NULL, but it will
* also set the version field of #Elm_Button_Smart_Class (base field)
* to the latest #ELM_BUTTON_SMART_CLASS_VERSION and name it to the
* specific value.
*
* It will keep a reference to the name field as a <c>"const char *"</c>,
* i.e., the name must be available while the structure is
* used (hint: static or global variable!) and must not be modified.
*
* @see ELM_BUTTON_SMART_CLASS_INIT_NULL
* @see ELM_BUTTON_SMART_CLASS_INIT
*
* @ingroup Widget
*/
#define ELM_BUTTON_SMART_CLASS_INIT_NAME_VERSION(name) \
ELM_BUTTON_SMART_CLASS_INIT(ELM_LAYOUT_SMART_CLASS_INIT_NAME_VERSION(name))
/**
* Elementary button base smart class. This inherits directly from
* #Elm_Layout_Smart_Class and is meant to build widgets extending the
* behavior of a button.
*
* All of the functions listed on @ref Button namespace will work for
* objects deriving from #Elm_Button_Smart_Class.
*/
typedef struct _Elm_Button_Smart_Class
{
Elm_Layout_Smart_Class base; /**< Layout widget class struct, since we're inheriting from it */
int version; /**< Version of this smart class definition */
Eina_Bool admits_autorepeat : 1; /**< Whether the button objects of this class admit auto-repetition of click events, when one holds the click on them. This is true by default. */
} Elm_Button_Smart_Class;
/**
* Base widget smart data extended with button instance data.
*/
typedef struct _Elm_Button_Smart_Data
{
Elm_Layout_Smart_Data base; /**< Base widget smart data as first member obligatory, as we're inheriting from it */
/* auto-repeat stuff */
double ar_threshold; /**< Time to wait until first auto-repeated click is generated */
double ar_interval; /**< Time frame for subsequent auto-repeated clicks, after the first automatic one is triggerred */
Ecore_Timer *timer; /**< Internal timer object for auto-repeat behavior */
Eina_Bool autorepeat : 1; /**< Whether auto-repetition of clicks is enabled or not (bound to _Elm_Button_Smart_Class::admits_autorepeat) */
Eina_Bool repeating : 1; /**< Whether auto-repetition is going on */
} Elm_Button_Smart_Data;
/**
* @}
*/
EAPI const Elm_Button_Smart_Class *elm_button_smart_class_get(void);
#endif