src/bin/e_widget_radio.c

   1 #include "e.h"
   2
   3 struct _E_Radio_Group
   4 {
   5    int       *valptr;
   6    Eina_List *radios;
   7 };
   8
   9 typedef struct _E_Widget_Data E_Widget_Data;
  10 struct _E_Widget_Data
  11 {
  12    E_Radio_Group *group;
  13    Evas_Object   *o_radio;
  14    Evas_Object   *o_icon;
  15    int            valnum;
  16 };
  17
  18 static void _e_wid_del_hook(Evas_Object *obj);
  19 static void _e_wid_focus_hook(Evas_Object *obj);
  20 static void _e_wid_do(Evas_Object *obj);
  21 static void _e_wid_activate_hook(Evas_Object *obj);
  22 static void _e_wid_disable_hook(Evas_Object *obj);
  23 static void _e_wid_signal_cb1(void *data, Evas_Object *obj, const char *emission, const char *source);
  24 static void _e_wid_focus_steal(void *data, Evas *e, Evas_Object *obj, void *event_info);
  25 /* local subsystem functions */
  26
  27 /* externally accessible functions */
  28 EAPI E_Radio_Group *
  29 e_widget_radio_group_new(int *val)
  30 {
  31    E_Radio_Group *group;
  32
  33    group = calloc(1, sizeof(E_Radio_Group));
  34    group->valptr = val;
  35    return group;
  36 }
  37
  38 EAPI Evas_Object *
  39 e_widget_radio_add(Evas *evas, const char *label, int valnum, E_Radio_Group *group)
  40 {
  41    Evas_Object *obj, *o;
  42    E_Widget_Data *wd;
  43    Evas_Coord mw, mh;
  44
  45    obj = e_widget_add(evas);
  46
  47    e_widget_del_hook_set(obj, _e_wid_del_hook);
  48    e_widget_focus_hook_set(obj, _e_wid_focus_hook);
  49    e_widget_activate_hook_set(obj, _e_wid_activate_hook);
  50    e_widget_disable_hook_set(obj, _e_wid_disable_hook);
  51
  52    wd = calloc(1, sizeof(E_Widget_Data));
  53    wd->group = group;
  54    wd->valnum = valnum;
  55    e_widget_data_set(obj, wd);
  56
  57    o = edje_object_add(evas);
  58    wd->o_radio = o;
  59    e_theme_edje_object_set(o, "base/theme/widgets",
  60                            "e/widgets/radio");
  61    edje_object_signal_callback_add(o, "e,action,toggle", "*",
  62                                    _e_wid_signal_cb1, obj);
  63    edje_object_part_text_set(o, "e.text.label", label);
  64    evas_object_show(o);
  65    edje_object_size_min_calc(o, &mw, &mh);
  66    e_widget_size_min_set(obj, mw, mh);
  67    if ((wd->group) && (wd->group->valptr))
  68      {
  69         if (*(wd->group->valptr) == valnum)
  70           edje_object_signal_emit(o, "e,state,on", "e");
  71      }
  72    if (wd->group)
  73      {
  74         wd->group->radios = eina_list_append(wd->group->radios, obj);
  75      }
  76
  77    e_widget_sub_object_add(obj, o);
  78    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN,
  79                                   _e_wid_focus_steal, obj);
  80    e_widget_resize_object_set(obj, o);
  81
  82    return obj;
  83 }
  84
  85 EAPI Evas_Object *
  86 e_widget_radio_icon_add(Evas *evas, const char *label, const char *icon, int icon_w, int icon_h, int valnum, E_Radio_Group *group)
  87 {
  88    Evas_Object *obj, *o, *o2;
  89    E_Widget_Data *wd;
  90    Evas_Coord mw, mh;
  91
  92    obj = e_widget_add(evas);
  93
  94    e_widget_del_hook_set(obj, _e_wid_del_hook);
  95    e_widget_focus_hook_set(obj, _e_wid_focus_hook);
  96    e_widget_activate_hook_set(obj, _e_wid_activate_hook);
  97    e_widget_disable_hook_set(obj, _e_wid_disable_hook);
  98
  99    wd = calloc(1, sizeof(E_Widget_Data));
 100    wd->group = group;
 101    wd->valnum = valnum;
 102    e_widget_data_set(obj, wd);
 103
 104    o = edje_object_add(evas);
 105    wd->o_radio = o;
 106    e_theme_edje_object_set(o, "base/theme/widgets",
 107                            "e/widgets/radio_icon");
 108    edje_object_signal_callback_add(o, "e,action,toggle", "*",
 109                                    _e_wid_signal_cb1, obj);
 110    edje_object_part_text_set(o, "e.text.label", label);
 111    evas_object_show(o);
 112
 113    if (label)
 114      {
 115         edje_object_signal_emit(o, "e,state,labeled", "e");
 116         edje_object_message_signal_process(o);
 117      }
 118
 119    if (icon)
 120      {
 121         o2 = e_icon_add(evas);
 122         wd->o_icon = o2;
 123         e_util_icon_theme_set(o2, icon);
 124         evas_object_size_hint_min_set(o2, icon_w, icon_h);
 125         edje_object_part_swallow(wd->o_radio, "e.swallow.icon", o2);
 126         evas_object_show(o2);
 127         e_widget_sub_object_add(obj, o2);
 128      }
 129
 130    edje_object_size_min_calc(o, &mw, &mh);
 131    e_widget_size_min_set(obj, mw, mh);
 132    if ((wd->group) && (wd->group->valptr))
 133      {
 134         if (*(wd->group->valptr) == valnum)
 135           edje_object_signal_emit(o, "e,state,on", "e");
 136      }
 137    if (wd->group)
 138      wd->group->radios = eina_list_append(wd->group->radios, obj);
 139
 140    e_widget_sub_object_add(obj, o);
 141    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN,
 142                                   _e_wid_focus_steal, obj);
 143    e_widget_resize_object_set(obj, o);
 144
 145    return obj;
 146 }
 147
 148 EAPI void
 149 e_widget_radio_toggle_set(Evas_Object *obj, int toggle)
 150 {
 151    E_Widget_Data *wd;
 152
 153    if (!(wd = e_widget_data_get(obj))) return;
 154
 155    if (toggle)
 156      {
 157         Eina_List *l;
 158         Evas_Object *sobj;
 159
 160         EINA_LIST_FOREACH(wd->group->radios, l, sobj)
 161           {
 162              if (sobj != obj)
 163                {
 164                   wd = e_widget_data_get(sobj);
 165                   if (wd->valnum == *(wd->group->valptr))
 166                     {
 167                        edje_object_signal_emit(wd->o_radio, "e,state,off", "e");
 168                        break;
 169                     }
 170                }
 171           }
 172         wd = e_widget_data_get(obj);
 173         *(wd->group->valptr) = wd->valnum;
 174         edje_object_signal_emit(wd->o_radio, "e,state,on", "e");
 175      }
 176    else
 177      edje_object_signal_emit(wd->o_radio, "e,state,off", "e");
 178    evas_object_smart_callback_call(obj, "changed", NULL);
 179 }
 180
 181 static void
 182 _e_wid_del_hook(Evas_Object *obj)
 183 {
 184    E_Widget_Data *wd;
 185
 186    wd = e_widget_data_get(obj);
 187    if (wd->group)
 188      {
 189         wd->group->radios = eina_list_remove(wd->group->radios, obj);
 190         if (!wd->group->radios) free(wd->group);
 191      }
 192    free(wd);
 193 }
 194
 195 static void
 196 _e_wid_focus_hook(Evas_Object *obj)
 197 {
 198    E_Widget_Data *wd;
 199
 200    wd = e_widget_data_get(obj);
 201    if (e_widget_focus_get(obj))
 202      {
 203         edje_object_signal_emit(wd->o_radio, "e,state,focused", "e");
 204         evas_object_focus_set(wd->o_radio, 1);
 205      }
 206    else
 207      {
 208         edje_object_signal_emit(wd->o_radio, "e,state,unfocused", "e");
 209         evas_object_focus_set(wd->o_radio, 0);
 210      }
 211 }
 212
 213 static void
 214 _e_wid_do(Evas_Object *obj)
 215 {
 216    E_Widget_Data *wd;
 217
 218    if (e_widget_disabled_get(obj)) return;
 219
 220    wd = e_widget_data_get(obj);
 221    if ((wd->group) && (wd->group->valptr))
 222      {
 223         Eina_List *l;
 224         Evas_Object *sobj;
 225         int toggled = 0;
 226
 227         EINA_LIST_FOREACH(wd->group->radios, l, sobj)
 228           {
 229              if (sobj != obj)
 230                {
 231                   wd = e_widget_data_get(sobj);
 232                   if (wd->valnum == *(wd->group->valptr))
 233                     {
 234                        edje_object_signal_emit(wd->o_radio, "e,state,off", "e");
 235                        toggled = 1;
 236                        break;
 237                     }
 238                }
 239           }
 240         if (!toggled) return;
 241         wd = e_widget_data_get(obj);
 242         *(wd->group->valptr) = wd->valnum;
 243         edje_object_signal_emit(wd->o_radio, "e,state,on", "e");
 244      }
 245    evas_object_smart_callback_call(obj, "changed", NULL);
 246 }
 247
 248 static void
 249 _e_wid_activate_hook(Evas_Object *obj)
 250 {
 251    _e_wid_do(obj);
 252 }
 253
 254 static void
 255 _e_wid_disable_hook(Evas_Object *obj)
 256 {
 257    E_Widget_Data *wd;
 258
 259    wd = e_widget_data_get(obj);
 260    if (e_widget_disabled_get(obj))
 261      edje_object_signal_emit(wd->o_radio, "e,state,disabled", "e");
 262    else
 263      edje_object_signal_emit(wd->o_radio, "e,state,enabled", "e");
 264 }
 265
 266 static void
 267 _e_wid_signal_cb1(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 268 {
 269    _e_wid_do(data);
 270    e_widget_change(data);
 271 }
 272
 273 static void
 274 _e_wid_focus_steal(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 275 {
 276    e_widget_focus_steal(data);
 277 }
 278