1 #ifndef ELM_WIDGET_SLIDER_H
2 #define ELM_WIDGET_SLIDER_H
4 #include "elm_widget_layout.h"
10 * @section elm-slider-class The Elementary Slider Class
12 * Elementary, besides having the @ref Slider widget, exposes its
13 * foundation -- the Elementary Slider Class -- in order to create other
14 * widgets which are a slider with some more logic on top.
18 * @def ELM_SLIDER_CLASS
20 * Use this macro to cast whichever subclass of
21 * #Elm_Slider_Smart_Class into it, so to access its fields.
25 #define ELM_SLIDER_CLASS(x) ((Elm_Slider_Smart_Class *)x)
28 * @def ELM_SLIDER_DATA
30 * Use this macro to cast whichever subdata of
31 * #Elm_Slider_Smart_Data into it, so to access its fields.
35 #define ELM_SLIDER_DATA(x) ((Elm_Slider_Smart_Data *)x)
38 * @def ELM_SLIDER_SMART_CLASS_VERSION
40 * Current version for Elementary slider @b base smart class, a value
41 * which goes to _Elm_Slider_Smart_Class::version.
45 #define ELM_SLIDER_SMART_CLASS_VERSION 1
48 * @def ELM_SLIDER_SMART_CLASS_INIT
50 * Initializer for a whole #Elm_Slider_Smart_Class structure, with
51 * @c NULL values on its specific fields.
53 * @param smart_class_init initializer to use for the "base" field
54 * (#Evas_Smart_Class).
56 * @see EVAS_SMART_CLASS_INIT_NULL
57 * @see EVAS_SMART_CLASS_INIT_NAME_VERSION
58 * @see ELM_SLIDER_SMART_CLASS_INIT_NULL
59 * @see ELM_SLIDER_SMART_CLASS_INIT_NAME_VERSION
63 #define ELM_SLIDER_SMART_CLASS_INIT(smart_class_init) \
64 {smart_class_init, ELM_SLIDER_SMART_CLASS_VERSION}
67 * @def ELM_SLIDER_SMART_CLASS_INIT_NULL
69 * Initializer to zero out a whole #Elm_Slider_Smart_Class structure.
71 * @see ELM_SLIDER_SMART_CLASS_INIT_NAME_VERSION
72 * @see ELM_SLIDER_SMART_CLASS_INIT
76 #define ELM_SLIDER_SMART_CLASS_INIT_NULL \
77 ELM_SLIDER_SMART_CLASS_INIT(EVAS_SMART_CLASS_INIT_NULL)
80 * @def ELM_SLIDER_SMART_CLASS_INIT_NAME_VERSION
82 * Initializer to zero out a whole #Elm_Slider_Smart_Class structure and
83 * set its name and version.
85 * This is similar to #ELM_SLIDER_SMART_CLASS_INIT_NULL, but it will
86 * also set the version field of #Elm_Slider_Smart_Class (base field)
87 * to the latest #ELM_SLIDER_SMART_CLASS_VERSION and name it to the
90 * It will keep a reference to the name field as a <c>"const char *"</c>,
91 * i.e., the name must be available while the structure is
92 * used (hint: static or global variable!) and must not be modified.
94 * @see ELM_SLIDER_SMART_CLASS_INIT_NULL
95 * @see ELM_SLIDER_SMART_CLASS_INIT
99 #define ELM_SLIDER_SMART_CLASS_INIT_NAME_VERSION(name) \
100 ELM_SLIDER_SMART_CLASS_INIT \
101 (ELM_LAYOUT_SMART_CLASS_INIT_NAME_VERSION(name))
104 * Elementary slider base smart class. This inherits directly from
105 * #Elm_Layout_Smart_Class and is meant to build widgets extending the
106 * behavior of a slider.
108 * All of the functions listed on @ref Slider namespace will work for
109 * objects deriving from #Elm_Slider_Smart_Class.
111 typedef struct _Elm_Slider_Smart_Class
113 Elm_Layout_Smart_Class base;
115 int version; /**< Version of this smart class definition */
116 } Elm_Slider_Smart_Class;
119 * Base layout smart data extended with slider instance data.
121 typedef struct _Elm_Slider_Smart_Data Elm_Slider_Smart_Data;
122 struct _Elm_Slider_Smart_Data
124 Elm_Layout_Smart_Data base;
126 Evas_Object *spacer, *popup, *track;
130 const char *indicator;
132 char *(*indicator_format_func)(double val);
133 void (*indicator_format_free)(char *str);
135 char *(*units_format_func)(double val);
136 void (*units_format_free)(char *str);
138 double val, val_min, val_max, val2;
140 Evas_Coord downx, downy;
142 Eina_Bool horizontal : 1;
143 Eina_Bool inverted : 1;
144 Eina_Bool indicator_show : 1;
145 Eina_Bool spacer_down : 1;
146 Eina_Bool frozen : 1;
147 Eina_Bool popup_hiding : 1;
154 EAPI extern const char ELM_SLIDER_SMART_NAME[];
155 EAPI const Elm_Slider_Smart_Class *elm_slider_smart_class_get(void);
157 #define ELM_SLIDER_DATA_GET(o, sd) \
158 Elm_Slider_Smart_Data * sd = evas_object_smart_data_get(o)
160 #define ELM_SLIDER_DATA_GET_OR_RETURN(o, ptr) \
161 ELM_SLIDER_DATA_GET(o, ptr); \
164 CRITICAL("No widget data for object %p (%s)", \
165 o, evas_object_type_get(o)); \
169 #define ELM_SLIDER_DATA_GET_OR_RETURN_VAL(o, ptr, val) \
170 ELM_SLIDER_DATA_GET(o, ptr); \
173 CRITICAL("No widget data for object %p (%s)", \
174 o, evas_object_type_get(o)); \
178 #define ELM_SLIDER_CHECK(obj) \
179 if (!obj || !elm_widget_type_check((obj), ELM_SLIDER_SMART_NAME, \