src/lib/elm_panes.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 /**
   5  * @defgroup Panes Panes
   6  *
   7  */
   8
   9 typedef struct _Widget_Data Widget_Data;
  10
  11 struct _Widget_Data
  12 {
  13    Evas_Object *panes;
  14
  15    struct
  16      {
  17         Evas_Object *left;
  18         Evas_Object *right;
  19      } contents;
  20
  21    struct
  22      {
  23         int x_diff;
  24         int y_diff;
  25         Eina_Bool move;
  26      } move;
  27
  28    Eina_Bool clicked_double;
  29    Eina_Bool horizontal;
  30 };
  31
  32 static const char *widtype = NULL;
  33 static void _del_hook(Evas_Object *obj);
  34 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  35 static void _theme_hook(Evas_Object *obj);
  36 static void _sizing_eval(Evas_Object *obj);
  37 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  38
  39 static void
  40 _del_hook(Evas_Object *obj)
  41 {
  42    Widget_Data *wd = elm_widget_data_get(obj);
  43    if (!wd) return;
  44    free(wd);
  45 }
  46
  47 static void
  48 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  49 {
  50    Widget_Data *wd = elm_widget_data_get(obj);
  51    if (!wd) return;
  52    edje_object_mirrored_set(wd->panes, rtl);
  53 }
  54
  55 static void
  56 _theme_hook(Evas_Object *obj)
  57 {
  58    Widget_Data *wd = elm_widget_data_get(obj);
  59    const char *style = elm_widget_style_get(obj);
  60    double size;
  61
  62    if (!wd) return;
  63    _elm_widget_mirrored_reload(obj);
  64    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  65    size = elm_panes_content_left_size_get(obj);
  66
  67    if (wd->horizontal)
  68      _elm_theme_object_set(obj, wd->panes, "panes", "horizontal", style);
  69    else
  70      _elm_theme_object_set(obj, wd->panes, "panes", "vertical", style);
  71
  72    if (wd->contents.left)
  73      edje_object_part_swallow(wd->panes, "elm.swallow.left", wd->contents.left);
  74    if (wd->contents.right)
  75      edje_object_part_swallow(wd->panes, "elm.swallow.right", wd->contents.right);
  76
  77    edje_object_scale_set(wd->panes, elm_widget_scale_get(obj) *
  78                          _elm_config->scale);
  79    _sizing_eval(obj);
  80    elm_panes_content_left_size_set(obj, size);
  81 }
  82
  83 static Eina_Bool
  84 _elm_panes_focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
  85 {
  86    Widget_Data *wd = elm_widget_data_get(obj);
  87
  88    if (!wd)
  89      return EINA_FALSE;
  90
  91    double w, h;
  92    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
  93    if (((wd->horizontal) && ( h == 0.0 )) || ((!wd->horizontal) && ( w == 0.0 )))
  94      return elm_widget_focus_next_get(wd->contents.right, dir, next);
  95
  96    Evas_Object *chain[2];
  97
  98    /* Direction */
  99    if (dir == ELM_FOCUS_PREVIOUS)
 100      {
 101         chain[0] = wd->contents.right;
 102         chain[1] = wd->contents.left;
 103      }
 104    else if (dir == ELM_FOCUS_NEXT)
 105      {
 106         chain[0] = wd->contents.left;
 107         chain[1] = wd->contents.right;
 108      }
 109    else
 110      return EINA_FALSE;
 111
 112    unsigned char i = elm_widget_focus_get(chain[1]);
 113
 114    if (elm_widget_focus_next_get(chain[i], dir, next))
 115      return EINA_TRUE;
 116
 117    i = !i;
 118
 119    Evas_Object *to_focus;
 120    if (elm_widget_focus_next_get(chain[i], dir, &to_focus))
 121      {
 122         *next = to_focus;
 123         return !!i;
 124      }
 125
 126    return EINA_FALSE;
 127 }
 128
 129 static void
 130 _sizing_eval(Evas_Object *obj)
 131 {
 132    Widget_Data *wd = elm_widget_data_get(obj);
 133    if (!wd) return;
 134 }
 135
 136 static void
 137 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 138 {
 139    _sizing_eval(data);
 140 }
 141
 142 static void
 143 _sub_del(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 144 {
 145    Widget_Data *wd = elm_widget_data_get(obj);
 146    Evas_Object *sub = event_info;
 147
 148    if (!wd) return;
 149    if (sub == wd->contents.left)
 150      {
 151         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 152                                             _changed_size_hints, obj);
 153         wd->contents.left = NULL;
 154         _sizing_eval(obj);
 155      }
 156    else if (sub == wd->contents.right)
 157      {
 158         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 159                                             _changed_size_hints, obj);
 160         wd->contents.right= NULL;
 161         _sizing_eval(obj);
 162      }
 163 }
 164
 165 static void
 166 _clicked(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 167 {
 168    evas_object_smart_callback_call(data, "clicked", NULL);
 169 }
 170
 171 static void
 172 _clicked_double(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 173 {
 174    Widget_Data *wd = elm_widget_data_get(data);
 175
 176    wd->clicked_double = EINA_TRUE;
 177 }
 178
 179 static void
 180 _press(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 181 {
 182    evas_object_smart_callback_call(data, "press", NULL);
 183 }
 184
 185 static void
 186 _unpress(void *data, Evas_Object *obj __UNUSED__ , const char *emission __UNUSED__, const char *source __UNUSED__)
 187 {
 188    Widget_Data *wd = elm_widget_data_get(data);
 189    evas_object_smart_callback_call(data, "unpress", NULL);
 190
 191    if (wd->clicked_double)
 192      {
 193         evas_object_smart_callback_call(data, "clicked,double", NULL);
 194         wd->clicked_double = EINA_FALSE;
 195      }
 196 }
 197
 198 /**
 199  * Add a new panes to the parent
 200  *
 201  * @param parent The parent object
 202  * @return The new object or NULL if it cannot be created
 203  *
 204  * @ingroup Panes
 205  */
 206 EAPI Evas_Object *
 207 elm_panes_add(Evas_Object *parent)
 208 {
 209    Evas_Object *obj;
 210    Evas *e;
 211    Widget_Data *wd;
 212
 213    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 214
 215    ELM_SET_WIDTYPE(widtype, "panes");
 216    elm_widget_type_set(obj, "panes");
 217    elm_widget_sub_object_add(parent, obj);
 218    elm_widget_data_set(obj, wd);
 219    elm_widget_del_hook_set(obj, _del_hook);
 220    elm_widget_theme_hook_set(obj, _theme_hook);
 221    elm_widget_focus_next_hook_set(obj, _elm_panes_focus_next_hook);
 222    elm_widget_can_focus_set(obj, EINA_FALSE);
 223
 224    wd->panes = edje_object_add(e);
 225    _elm_theme_object_set(obj, wd->panes, "panes", "vertical", "default");
 226    elm_widget_resize_object_set(obj, wd->panes);
 227    evas_object_show(wd->panes);
 228
 229    elm_panes_content_left_size_set(obj, 0.5);
 230
 231    edje_object_signal_callback_add(wd->panes, "elm,action,click", "",
 232                                    _clicked, obj);
 233    edje_object_signal_callback_add(wd->panes, "elm,action,click,double", "",
 234                                    _clicked_double, obj);
 235    edje_object_signal_callback_add(wd->panes, "elm,action,press", "",
 236                                    _press, obj);
 237    edje_object_signal_callback_add(wd->panes, "elm,action,unpress", "",
 238                                    _unpress, obj);
 239
 240    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 241    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 242                                   _changed_size_hints, obj);
 243
 244    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 245    _sizing_eval(obj);
 246    return obj;
 247 }
 248
 249
 250 /**
 251  * Set the left content of the panes widget.
 252  *
 253  * Once the content object is set, a previously set one will be deleted.
 254  * If you want to keep that old content object, use the
 255  * elm_panes_content_left_unset() function.
 256  *
 257  * @param obj The panes object
 258  * @param content The new left content object
 259  *
 260  * @ingroup Panes
 261  */
 262 EAPI void
 263 elm_panes_content_left_set(Evas_Object *obj, Evas_Object *content)
 264 {
 265    ELM_CHECK_WIDTYPE(obj, widtype);
 266    Widget_Data *wd = elm_widget_data_get(obj);
 267    if (wd->contents.left)
 268      {
 269         evas_object_del(wd->contents.left);
 270         wd->contents.left = NULL;
 271      }
 272    if (content)
 273      {
 274         wd->contents.left = content;
 275         elm_widget_sub_object_add(obj, content);
 276         edje_object_part_swallow(wd->panes, "elm.swallow.left", content);
 277      }
 278 }
 279
 280 /**
 281  * Set the right content of the panes widget.
 282  *
 283  * Once the content object is set, a previously set one will be deleted.
 284  * If you want to keep that old content object, use the
 285  * elm_panes_content_right_unset() function.
 286  *
 287  * @param obj The panes object
 288  * @param content The new right content object
 289  *
 290  * @ingroup Panes
 291  */
 292 EAPI void
 293 elm_panes_content_right_set(Evas_Object *obj, Evas_Object *content)
 294 {
 295    ELM_CHECK_WIDTYPE(obj, widtype);
 296    Widget_Data *wd = elm_widget_data_get(obj);
 297    if (wd->contents.right)
 298      {
 299         evas_object_del(wd->contents.right);
 300         wd->contents.right = NULL;
 301      }
 302    if (content)
 303      {
 304         wd->contents.right = content;
 305         elm_widget_sub_object_add(obj, content);
 306         edje_object_part_swallow(wd->panes, "elm.swallow.right", content);
 307      }
 308 }
 309
 310 /**
 311  * Get the left content used for the panes
 312  *
 313  * Return the left content object which is set for this widget.
 314  *
 315  * @param obj The panes object
 316  * @return The left content object that is being used
 317  *
 318  * @ingroup Panes
 319  */
 320 EAPI Evas_Object *
 321 elm_panes_content_left_get(const Evas_Object *obj)
 322 {
 323    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 324    Widget_Data *wd = elm_widget_data_get(obj);
 325    return wd->contents.left;
 326 }
 327
 328 /**
 329  * Get the right content used for the panes
 330  *
 331  * Return the right content object which is set for this widget.
 332  *
 333  * @param obj The panes object
 334  * @return The right content object that is being used
 335  *
 336  * @ingroup Panes
 337  */
 338 EAPI Evas_Object *
 339 elm_panes_content_right_get(const Evas_Object *obj)
 340 {
 341    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 342    Widget_Data *wd = elm_widget_data_get(obj);
 343    return wd->contents.right;
 344 }
 345
 346 /**
 347  * Unset the left content used for the panes
 348  *
 349  * Unparent and return the left content object which was set for this widget.
 350  *
 351  * @param obj The panes object
 352  * @return The left content object that was being used
 353  *
 354  * @ingroup Panes
 355  */
 356 EAPI Evas_Object *
 357 elm_panes_content_left_unset(Evas_Object *obj)
 358 {
 359    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 360    Widget_Data *wd = elm_widget_data_get(obj);
 361    if (!wd) return NULL;
 362    if (!wd->contents.left) return NULL;
 363    Evas_Object *content = wd->contents.left;
 364    elm_widget_sub_object_del(obj, content);
 365    edje_object_part_unswallow(wd->panes, content);
 366    wd->contents.left = NULL;
 367    return content;
 368 }
 369
 370 /**
 371  * Unset the right content used for the panes
 372  *
 373  * Unparent and return the right content object which was set for this widget.
 374  *
 375  * @param obj The panes object
 376  * @return The right content object that was being used
 377  *
 378  * @ingroup Panes
 379  */
 380 EAPI Evas_Object *
 381 elm_panes_content_right_unset(Evas_Object *obj)
 382 {
 383    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 384    Widget_Data *wd = elm_widget_data_get(obj);
 385    if (!wd) return NULL;
 386    if (!wd->contents.right) return NULL;
 387    Evas_Object *content = wd->contents.right;
 388    elm_widget_sub_object_del(obj, content);
 389    edje_object_part_unswallow(wd->panes, content);
 390    wd->contents.right = NULL;
 391    return content;
 392 }
 393
 394 EAPI double
 395 elm_panes_content_left_size_get(const Evas_Object *obj)
 396 {
 397    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 398    Widget_Data *wd = elm_widget_data_get(obj);
 399    double w, h;
 400
 401    edje_object_part_drag_value_get(wd->panes, "elm.bar", &w, &h);
 402    if (wd->horizontal) return h;
 403    else return w;
 404 }
 405
 406 EAPI void
 407 elm_panes_content_left_size_set(Evas_Object *obj, double size)
 408 {
 409    ELM_CHECK_WIDTYPE(obj, widtype);
 410    Widget_Data *wd = elm_widget_data_get(obj);
 411
 412    if (size < 0.0) size = 0.0;
 413    else if (size > 1.0) size = 1.0;
 414    if (wd->horizontal)
 415      edje_object_part_drag_value_set(wd->panes, "elm.bar", 0.0, size);
 416    else
 417      edje_object_part_drag_value_set(wd->panes, "elm.bar", size, 0.0);
 418 }
 419
 420 EAPI void
 421 elm_panes_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 422 {
 423    ELM_CHECK_WIDTYPE(obj, widtype);
 424    Widget_Data *wd = elm_widget_data_get(obj);
 425
 426    wd->horizontal = horizontal;
 427    _theme_hook(obj);
 428    elm_panes_content_left_size_set(obj, 0.5);
 429 }
 430
 431 EAPI Eina_Bool
 432 elm_panes_horizontal_get(const Evas_Object *obj)
 433 {
 434    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 435    Widget_Data *wd = elm_widget_data_get(obj);
 436    return wd->horizontal;
 437 }