src/bin/e_widget_button.c

   1 #include "e.h"
   2
   3 typedef enum _E_Widget_Button_Type E_Widget_Button_Type;
   4 enum _E_Widget_Button_Type
   5 {
   6    E_WIDGET_BUTTON_TEXT = 1 << 0,
   7    E_WIDGET_BUTTON_ICON = 1 << 1
   8 };
   9
  10 typedef struct _E_Widget_Data E_Widget_Data;
  11 struct _E_Widget_Data
  12 {
  13    Evas_Object         *o_button;
  14    Evas_Object         *o_icon;
  15    void                 (*func)(void *data, void *data2);
  16    void                *data;
  17    void                *data2;
  18    E_Widget_Button_Type type;
  19 };
  20
  21 static void _e_wid_del_hook(Evas_Object *obj);
  22 static void _e_wid_focus_hook(Evas_Object *obj);
  23 static void _e_wid_activate_hook(Evas_Object *obj);
  24 static void _e_wid_disable_hook(Evas_Object *obj);
  25 static void _e_wid_signal_cb1(void *data, Evas_Object *obj, const char *emission, const char *source);
  26 static void _e_wid_focus_steal(void *data, Evas *e, Evas_Object *obj, void *event_info);
  27 static void _e_wid_button_state_send(E_Widget_Data *wd);
  28 /* local subsystem functions */
  29
  30 /* externally accessible functions */
  31 EAPI Evas_Object *
  32 e_widget_button_add(Evas *evas, const char *label, const char *icon, void (*func)(void *data, void *data2), void *data, void *data2)
  33 {
  34    Evas_Object *obj, *o;
  35    E_Widget_Data *wd;
  36    Evas_Coord mw, mh;
  37
  38    obj = e_widget_add(evas);
  39
  40    e_widget_del_hook_set(obj, _e_wid_del_hook);
  41    e_widget_focus_hook_set(obj, _e_wid_focus_hook);
  42    e_widget_activate_hook_set(obj, _e_wid_activate_hook);
  43    e_widget_disable_hook_set(obj, _e_wid_disable_hook);
  44    wd = calloc(1, sizeof(E_Widget_Data));
  45    wd->func = func;
  46    wd->data = data;
  47    wd->data2 = data2;
  48    e_widget_data_set(obj, wd);
  49
  50    o = edje_object_add(evas);
  51    wd->o_button = o;
  52    e_theme_edje_object_set(o, "base/theme/widgets",
  53                            "e/widgets/button");
  54    edje_object_signal_callback_add(o, "e,action,click", "",
  55                                    _e_wid_signal_cb1, obj);
  56    if ((label) && (label[0] != 0))
  57      {
  58         edje_object_part_text_set(o, "e.text.label", label);
  59         wd->type |= E_WIDGET_BUTTON_TEXT;
  60      }
  61
  62    e_widget_sub_object_add(obj, o);
  63    evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN,
  64                                   _e_wid_focus_steal, obj);
  65    e_widget_resize_object_set(obj, o);
  66    evas_object_show(o);
  67
  68    if (icon)
  69      {
  70         o = e_icon_add(evas);
  71         wd->o_icon = o;
  72         e_util_icon_theme_set(o, icon);
  73         edje_object_part_swallow(wd->o_button, "e.swallow.icon", o);
  74         e_widget_sub_object_add(obj, o);
  75         evas_object_show(o);
  76         wd->type |= E_WIDGET_BUTTON_ICON;
  77      }
  78
  79    _e_wid_button_state_send(wd);
  80    edje_object_size_min_calc(wd->o_button, &mw, &mh);
  81    e_widget_size_min_set(obj, mw, mh);
  82
  83    return obj;
  84 }
  85
  86 EAPI void
  87 e_widget_button_label_set(Evas_Object *obj, const char *label)
  88 {
  89    E_Widget_Data *wd;
  90    int mw, mh;
  91
  92    wd = e_widget_data_get(obj);
  93    edje_object_part_text_set(wd->o_button, "e.text.label", label);
  94    if ((label) && (label[0] != 0))
  95      wd->type |= E_WIDGET_BUTTON_TEXT;
  96    else
  97      wd->type = ~(wd->type & E_WIDGET_BUTTON_TEXT);
  98    _e_wid_button_state_send(wd);
  99    edje_object_size_min_calc(wd->o_button, &mw, &mh);
 100    e_widget_size_min_set(obj, mw, mh);
 101 }
 102
 103 EAPI void
 104 e_widget_button_icon_set(Evas_Object *obj, Evas_Object *icon)
 105 {
 106    E_Widget_Data *wd;
 107    int mw, mh;
 108
 109    wd = e_widget_data_get(obj);
 110    if (wd->o_icon)
 111      {
 112         e_widget_sub_object_del(obj, wd->o_icon);
 113         evas_object_hide(wd->o_icon);
 114         edje_object_part_unswallow(wd->o_button, wd->o_icon);
 115         evas_object_del(wd->o_icon);
 116         wd->o_icon = NULL;
 117      }
 118    if (icon)
 119      {
 120         wd->o_icon = icon;
 121         edje_object_part_swallow(wd->o_button, "e.swallow.icon", icon);
 122         evas_object_pass_events_set(icon, 1);
 123         evas_object_show(icon);
 124         e_widget_sub_object_add(obj, icon);
 125         wd->type |= E_WIDGET_BUTTON_ICON;
 126      }
 127    else
 128      wd->type = ~(wd->type & E_WIDGET_BUTTON_ICON);
 129    _e_wid_button_state_send(wd);
 130    edje_object_size_min_calc(wd->o_button, &mw, &mh);
 131    e_widget_size_min_set(obj, mw, mh);
 132 }
 133
 134 static void
 135 _e_wid_del_hook(Evas_Object *obj)
 136 {
 137    E_Widget_Data *wd;
 138
 139    wd = e_widget_data_get(obj);
 140    free(wd);
 141 }
 142
 143 static void
 144 _e_wid_focus_hook(Evas_Object *obj)
 145 {
 146    E_Widget_Data *wd;
 147
 148    wd = e_widget_data_get(obj);
 149    if (e_widget_focus_get(obj))
 150      {
 151         edje_object_signal_emit(wd->o_button, "e,state,focused", "e");
 152         evas_object_focus_set(wd->o_button, 1);
 153      }
 154    else
 155      {
 156         edje_object_signal_emit(wd->o_button, "e,state,unfocused", "e");
 157         evas_object_focus_set(wd->o_button, 0);
 158      }
 159 }
 160
 161 static void
 162 _e_wid_activate_hook(Evas_Object *obj)
 163 {
 164    E_Widget_Data *wd;
 165
 166    wd = e_widget_data_get(obj);
 167    if (wd->func) wd->func(wd->data, wd->data2);
 168 }
 169
 170 static void
 171 _e_wid_disable_hook(Evas_Object *obj)
 172 {
 173    E_Widget_Data *wd;
 174
 175    wd = e_widget_data_get(obj);
 176    if (e_widget_disabled_get(obj))
 177      edje_object_signal_emit(wd->o_button, "e,state,disabled", "e");
 178    else
 179      edje_object_signal_emit(wd->o_button, "e,state,enabled", "e");
 180 }
 181
 182 static void
 183 _e_wid_signal_cb1(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 184 {
 185    Evas_Object *wid;
 186
 187    wid = data;
 188    if ((!wid) || (e_widget_disabled_get(wid))) return;
 189    e_widget_focus_steal(wid);
 190    e_widget_change(wid);
 191    _e_wid_activate_hook(wid);
 192 }
 193
 194 static void
 195 _e_wid_focus_steal(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 196 {
 197    e_widget_focus_steal(data);
 198 }
 199
 200 static void
 201 _e_wid_button_state_send(E_Widget_Data *wd)
 202 {
 203    if ((!wd) || (!wd->o_button)) return;
 204    if (wd->type & E_WIDGET_BUTTON_TEXT)
 205      {
 206         if (wd->type & E_WIDGET_BUTTON_ICON)
 207           edje_object_signal_emit(wd->o_button, "e,state,combo", "e");
 208         else
 209           edje_object_signal_emit(wd->o_button, "e,state,text", "e");
 210      }
 211    else if (wd->type & E_WIDGET_BUTTON_ICON)
 212      edje_object_signal_emit(wd->o_button, "e,state,icon", "e");
 213    edje_object_message_signal_process(wd->o_button);
 214 }