src/lib/elm_panes.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 /**
   5  * TODO
   6  * Update the minimun height of the bar in the theme.
   7  * No minimun should be set in the vertical theme
   8  * Add events (move, start ...)
   9  */
  10
  11 typedef struct _Widget_Data Widget_Data;
  12
  13 struct _Widget_Data
  14 {
  15    Evas_Object *panes;
  16
  17    struct
  18      {
  19         Evas_Object *left;
  20         Evas_Object *right;
  21      } contents;
  22
  23    struct
  24      {
  25         int x_diff;
  26         int y_diff;
  27         Eina_Bool move;
  28      } move;
  29
  30    Eina_Bool clicked_double;
  31    Eina_Bool horizontal;
  32    Eina_Bool fixed;
  33 };
  34
  35 static const char *widtype = NULL;
  36 static void _del_hook(Evas_Object *obj);
  37 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  38 static void _theme_hook(Evas_Object *obj);
  39 static void _sizing_eval(Evas_Object *obj);
  40 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  41
  42 static const char SIG_CLICKED[] = "clicked";
  43 static const char SIG_PRESS[] = "press";
  44 static const char SIG_UNPRESS[] = "unpress";
  45 static const char SIG_CLICKED_DOUBLE[] = "clicked,double";
  46
  47 static const Evas_Smart_Cb_Description _signals[] = {
  48    {SIG_CLICKED, ""},
  49    {SIG_PRESS, ""},
  50    {SIG_UNPRESS, ""},
  51    {SIG_CLICKED_DOUBLE, ""},
  52    {NULL, NULL}
  53 };
  54
  55 static void
  56 _del_hook(Evas_Object *obj)
  57 {
  58    Widget_Data *wd = elm_widget_data_get(obj);
  59    if (!wd) return;
  60    free(wd);
  61 }
  62
  63 static void
  64 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  65 {
  66    Widget_Data *wd = elm_widget_data_get(obj);
  67    if (!wd) return;
  68    edje_object_mirrored_set(wd->panes, rtl);
  69 }
  70
  71 static void
  72 _theme_hook(Evas_Object *obj)
  73 {
  74    Widget_Data *wd = elm_widget_data_get(obj);
  75    const char *style = elm_widget_style_get(obj);
  76    double size;
  77
  78    if (!wd) return;
  79    _elm_widget_mirrored_reload(obj);
  80    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  81    size = elm_panes_content_left_size_get(obj);
  82
  83    if (wd->horizontal)
  84      _elm_theme_object_set(obj, wd->panes, "panes", "horizontal", style);
  85    else
  86      _elm_theme_object_set(obj, wd->panes, "panes", "vertical", style);
  87
  88    if (wd->contents.left)
  89      edje_object_part_swallow(wd->panes, "elm.swallow.left", wd->contents.left);
  90    if (wd->contents.right)
  91      edje_object_part_swallow(wd->panes, "elm.swallow.right", wd->contents.right);
  92    if (wd->fixed)
  93      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
  94
  95    edje_object_scale_set(wd->panes, elm_widget_scale_get(obj) *
  96                          _elm_config->scale);
  97    _sizing_eval(obj);
  98    elm_panes_content_left_size_set(obj, size);
  99 }
 100
 101 static Eina_Bool
 102 _elm_panes_focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
 103 {
 104    Widget_Data *wd = elm_widget_data_get(obj);
 105
 106    if (!wd)
 107      return EINA_FALSE;
 108
 109    double w, h;
 110    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 111    if (((wd->horizontal) && ( h == 0.0 )) || ((!wd->horizontal) && ( w == 0.0 )))
 112      return elm_widget_focus_next_get(wd->contents.right, dir, next);
 113
 114    Evas_Object *chain[2];
 115
 116    /* Direction */
 117    if (dir == ELM_FOCUS_PREVIOUS)
 118      {
 119         chain[0] = wd->contents.right;
 120         chain[1] = wd->contents.left;
 121      }
 122    else if (dir == ELM_FOCUS_NEXT)
 123      {
 124         chain[0] = wd->contents.left;
 125         chain[1] = wd->contents.right;
 126      }
 127    else
 128      return EINA_FALSE;
 129
 130    unsigned char i = elm_widget_focus_get(chain[1]);
 131
 132    if (elm_widget_focus_next_get(chain[i], dir, next))
 133      return EINA_TRUE;
 134
 135    i = !i;
 136
 137    Evas_Object *to_focus;
 138    if (elm_widget_focus_next_get(chain[i], dir, &to_focus))
 139      {
 140         *next = to_focus;
 141         return !!i;
 142      }
 143
 144    return EINA_FALSE;
 145 }
 146
 147 static void
 148 _sizing_eval(Evas_Object *obj)
 149 {
 150    Widget_Data *wd = elm_widget_data_get(obj);
 151    if (!wd) return;
 152 }
 153
 154 static void
 155 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 156 {
 157    _sizing_eval(data);
 158 }
 159
 160 static void
 161 _sub_del(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 162 {
 163    Widget_Data *wd = elm_widget_data_get(obj);
 164    Evas_Object *sub = event_info;
 165
 166    if (!wd) return;
 167    if (sub == wd->contents.left)
 168      {
 169         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 170                                             _changed_size_hints, obj);
 171         wd->contents.left = NULL;
 172         _sizing_eval(obj);
 173      }
 174    else if (sub == wd->contents.right)
 175      {
 176         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 177                                             _changed_size_hints, obj);
 178         wd->contents.right= NULL;
 179         _sizing_eval(obj);
 180      }
 181 }
 182
 183
 184 static void
 185 _clicked(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 186 {
 187    evas_object_smart_callback_call(data, SIG_CLICKED, NULL);
 188 }
 189
 190 static void
 191 _clicked_double(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 192 {
 193    Widget_Data *wd = elm_widget_data_get(data);
 194
 195    wd->clicked_double = EINA_TRUE;
 196 }
 197
 198 static void
 199 _press(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 200 {
 201    evas_object_smart_callback_call(data, SIG_PRESS, NULL);
 202 }
 203
 204 static void
 205 _unpress(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 206 {
 207    Widget_Data *wd = elm_widget_data_get(data);
 208    evas_object_smart_callback_call(data, SIG_UNPRESS, NULL);
 209
 210    if (wd->clicked_double)
 211      {
 212         evas_object_smart_callback_call(data, SIG_CLICKED_DOUBLE, NULL);
 213         wd->clicked_double = EINA_FALSE;
 214      }
 215 }
 216
 217 EAPI Evas_Object *
 218 elm_panes_add(Evas_Object *parent)
 219 {
 220    Evas_Object *obj;
 221    Evas *e;
 222    Widget_Data *wd;
 223
 224    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 225
 226    ELM_SET_WIDTYPE(widtype, "panes");
 227    elm_widget_type_set(obj, "panes");
 228    elm_widget_sub_object_add(parent, obj);
 229    elm_widget_data_set(obj, wd);
 230    elm_widget_del_hook_set(obj, _del_hook);
 231    elm_widget_theme_hook_set(obj, _theme_hook);
 232    elm_widget_focus_next_hook_set(obj, _elm_panes_focus_next_hook);
 233    elm_widget_can_focus_set(obj, EINA_FALSE);
 234
 235    wd->panes = edje_object_add(e);
 236    _elm_theme_object_set(obj, wd->panes, "panes", "vertical", "default");
 237    elm_widget_resize_object_set(obj, wd->panes);
 238    evas_object_show(wd->panes);
 239
 240    elm_panes_content_left_size_set(obj, 0.5);
 241
 242    edje_object_signal_callback_add(wd->panes, "elm,action,click", "",
 243                                    _clicked, obj);
 244    edje_object_signal_callback_add(wd->panes, "elm,action,click,double", "",
 245                                    _clicked_double, obj);
 246    edje_object_signal_callback_add(wd->panes, "elm,action,press", "",
 247                                    _press, obj);
 248    edje_object_signal_callback_add(wd->panes, "elm,action,unpress", "",
 249                                    _unpress, obj);
 250
 251    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 252    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 253                                   _changed_size_hints, obj);
 254
 255    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 256
 257    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 258    _sizing_eval(obj);
 259    return obj;
 260 }
 261
 262
 263 EAPI void
 264 elm_panes_content_left_set(Evas_Object *obj, Evas_Object *content)
 265 {
 266    ELM_CHECK_WIDTYPE(obj, widtype);
 267    Widget_Data *wd = elm_widget_data_get(obj);
 268    if (wd->contents.left)
 269      {
 270         evas_object_del(wd->contents.left);
 271         wd->contents.left = NULL;
 272      }
 273    if (content)
 274      {
 275         wd->contents.left = content;
 276         elm_widget_sub_object_add(obj, content);
 277         edje_object_part_swallow(wd->panes, "elm.swallow.left", content);
 278      }
 279 }
 280
 281 EAPI void
 282 elm_panes_content_right_set(Evas_Object *obj, Evas_Object *content)
 283 {
 284    ELM_CHECK_WIDTYPE(obj, widtype);
 285    Widget_Data *wd = elm_widget_data_get(obj);
 286    if (wd->contents.right)
 287      {
 288         evas_object_del(wd->contents.right);
 289         wd->contents.right = NULL;
 290      }
 291    if (content)
 292      {
 293         wd->contents.right = content;
 294         elm_widget_sub_object_add(obj, content);
 295         edje_object_part_swallow(wd->panes, "elm.swallow.right", content);
 296      }
 297 }
 298
 299 EAPI Evas_Object *
 300 elm_panes_content_left_get(const Evas_Object *obj)
 301 {
 302    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 303    Widget_Data *wd = elm_widget_data_get(obj);
 304    return wd->contents.left;
 305 }
 306
 307 EAPI Evas_Object *
 308 elm_panes_content_right_get(const Evas_Object *obj)
 309 {
 310    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 311    Widget_Data *wd = elm_widget_data_get(obj);
 312    return wd->contents.right;
 313 }
 314
 315 EAPI Evas_Object *
 316 elm_panes_content_left_unset(Evas_Object *obj)
 317 {
 318    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 319    Widget_Data *wd = elm_widget_data_get(obj);
 320    if (!wd) return NULL;
 321    if (!wd->contents.left) return NULL;
 322    Evas_Object *content = wd->contents.left;
 323    elm_widget_sub_object_del(obj, content);
 324    edje_object_part_unswallow(wd->panes, content);
 325    wd->contents.left = NULL;
 326    return content;
 327 }
 328
 329 EAPI Evas_Object *
 330 elm_panes_content_right_unset(Evas_Object *obj)
 331 {
 332    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 333    Widget_Data *wd = elm_widget_data_get(obj);
 334    if (!wd) return NULL;
 335    if (!wd->contents.right) return NULL;
 336    Evas_Object *content = wd->contents.right;
 337    elm_widget_sub_object_del(obj, content);
 338    edje_object_part_unswallow(wd->panes, content);
 339    wd->contents.right = NULL;
 340    return content;
 341 }
 342
 343 EAPI double
 344 elm_panes_content_left_size_get(const Evas_Object *obj)
 345 {
 346    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 347    Widget_Data *wd = elm_widget_data_get(obj);
 348    double w, h;
 349
 350    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 351    if (wd->horizontal) return h;
 352    else return w;
 353 }
 354
 355 EAPI void
 356 elm_panes_content_left_size_set(Evas_Object *obj, double size)
 357 {
 358    ELM_CHECK_WIDTYPE(obj, widtype);
 359    Widget_Data *wd = elm_widget_data_get(obj);
 360
 361    if (size < 0.0) size = 0.0;
 362    else if (size > 1.0) size = 1.0;
 363    if (wd->horizontal)
 364      edje_object_part_drag_value_set(wd->panes, "elm.bar", 0.0, size);
 365    else
 366      edje_object_part_drag_value_set(wd->panes, "elm.bar", size, 0.0);
 367 }
 368
 369 EAPI void
 370 elm_panes_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 371 {
 372    ELM_CHECK_WIDTYPE(obj, widtype);
 373    Widget_Data *wd = elm_widget_data_get(obj);
 374
 375    wd->horizontal = horizontal;
 376    _theme_hook(obj);
 377    elm_panes_content_left_size_set(obj, 0.5);
 378 }
 379
 380 EAPI Eina_Bool
 381 elm_panes_horizontal_get(const Evas_Object *obj)
 382 {
 383    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 384    Widget_Data *wd = elm_widget_data_get(obj);
 385    return wd->horizontal;
 386 }
 387
 388 EAPI void
 389 elm_panes_fixed_set(Evas_Object *obj, Eina_Bool fixed)
 390 {
 391    ELM_CHECK_WIDTYPE(obj, widtype);
 392    Widget_Data *wd = elm_widget_data_get(obj);
 393    wd->fixed = fixed;
 394    if (wd->fixed == EINA_TRUE)
 395      edje_object_signal_emit(wd->panes, "elm.panes.fixed", "elm");
 396    else
 397      edje_object_signal_emit(wd->panes, "elm.panes.unfixed", "elm");
 398 }
 399
 400 EAPI Eina_Bool
 401 elm_panes_fixed_get(const Evas_Object *obj)
 402 {
 403    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 404    Widget_Data *wd = elm_widget_data_get(obj);
 405    return wd->fixed;
 406 }