src/bin/e_widget_deskpreview.c

   1 #include "e.h"
   2
   3 typedef struct _E_Widget_Data E_Widget_Data;
   4 struct _E_Widget_Data
   5 {
   6    Evas_Object         *obj, *table;
   7    Eina_List           *desks;
   8    int                  w, h, dx, dy, cx, cy;
   9 };
  10 typedef struct _E_Widget_Desk_Data E_Widget_Desk_Data;
  11 struct _E_Widget_Desk_Data
  12 {
  13    Evas_Object *icon, *thumb;
  14    int          zone, con, x, y;
  15    Ecore_Event_Handler *bg_upd_hdl;
  16    Eina_Bool configurable : 1;
  17 };
  18
  19 /* local function prototypes */
  20 static void      _e_wid_data_del(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__);
  21 static void      _e_wid_del_hook(Evas_Object *obj);
  22 static void      _e_wid_reconfigure(E_Widget_Data *wd);
  23 static void      _e_wid_desk_cb_config(void *data, Evas *evas, Evas_Object *obj, void *event);
  24 static void      _e_wid_cb_resize(void *data, Evas *evas, Evas_Object *obj, void *event);
  25 static Eina_Bool _e_wid_cb_bg_update(void *data, int type, void *event);
  26
  27 EAPI Evas_Object *
  28 e_widget_deskpreview_add(Evas *evas, int nx, int ny)
  29 {
  30    Evas_Object *obj;
  31    E_Widget_Data *wd;
  32
  33    obj = e_widget_add(evas);
  34    wd = E_NEW(E_Widget_Data, 1);
  35    wd->obj = obj;
  36    wd->dx = nx;
  37    wd->dy = ny;
  38    e_widget_data_set(obj, wd);
  39    e_widget_del_hook_set(obj, _e_wid_del_hook);
  40
  41    wd->table = evas_object_table_add(evas);
  42    evas_object_table_padding_set(wd->table, 0, 0);
  43    evas_object_table_align_set(wd->table, 0.5, 0.5);
  44    e_widget_resize_object_set(wd->obj, wd->table);
  45    evas_object_show(wd->table);
  46    e_widget_sub_object_add(wd->obj, wd->table);
  47
  48    e_widget_deskpreview_num_desks_set(obj, wd->dx, wd->dy);
  49
  50    evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE,
  51                                   _e_wid_cb_resize, NULL);
  52    return obj;
  53 }
  54
  55 EAPI void
  56 e_widget_deskpreview_num_desks_set(Evas_Object *obj, int nx, int ny)
  57 {
  58    E_Widget_Data *wd;
  59
  60    if (!(wd = e_widget_data_get(obj))) return;
  61    wd->dx = nx;
  62    wd->dy = ny;
  63    _e_wid_reconfigure(wd);
  64 }
  65
  66 EAPI Evas_Object *
  67 e_widget_deskpreview_desk_add(Evas_Object *obj, E_Zone *zone, int x, int y, int w, int h)
  68 {
  69    E_Widget_Desk_Data *dd;
  70    const char *bgfile;
  71
  72    bgfile = e_bg_file_get(zone->container->num, zone->num, x, y);
  73
  74    dd = E_NEW(E_Widget_Desk_Data, 1);
  75    dd->con = zone->container->num;
  76    dd->zone = zone->num;
  77    dd->x = x;
  78    dd->y = y;
  79
  80    dd->icon = edje_object_add(evas_object_evas_get(obj));
  81    e_theme_edje_object_set(dd->icon, "base/theme/widgets",
  82                            "e/widgets/deskpreview/desk");
  83
  84    dd->thumb = e_icon_add(evas_object_evas_get(obj));
  85    e_icon_fill_inside_set(dd->thumb, EINA_FALSE);
  86    e_icon_file_edje_set(dd->thumb, bgfile, "e/desktop/background");
  87    evas_object_show(dd->thumb);
  88    edje_object_part_swallow(dd->icon, "e.swallow.content", dd->thumb);
  89
  90    evas_object_size_hint_min_set(dd->icon, w, h);
  91    evas_object_size_hint_max_set(dd->icon, w, h);
  92    evas_object_show(dd->icon);
  93    evas_object_data_set(dd->icon, "desk_data", dd);
  94    dd->configurable = EINA_TRUE;
  95    evas_object_event_callback_add(dd->icon, EVAS_CALLBACK_FREE, _e_wid_data_del, dd);
  96    evas_object_event_callback_add(dd->icon, EVAS_CALLBACK_MOUSE_DOWN,
  97                                   _e_wid_desk_cb_config, dd);
  98    dd->bg_upd_hdl = ecore_event_handler_add(E_EVENT_BG_UPDATE,
  99                                             _e_wid_cb_bg_update, dd);
 100
 101    return dd->icon;
 102 }
 103
 104 EAPI void
 105 e_widget_deskpreview_desk_configurable_set(Evas_Object *obj, Eina_Bool enable)
 106 {
 107    E_Widget_Desk_Data *dd;
 108
 109    EINA_SAFETY_ON_NULL_RETURN(obj);
 110    dd = evas_object_data_get(obj, "desk_data");
 111    EINA_SAFETY_ON_NULL_RETURN(dd);
 112    enable = !!enable;
 113    if (dd->configurable == enable) return;
 114    if (enable)
 115      evas_object_event_callback_add(dd->icon, EVAS_CALLBACK_MOUSE_DOWN,
 116                                     _e_wid_desk_cb_config, dd);
 117    else
 118      evas_object_event_callback_del_full(dd->icon, EVAS_CALLBACK_MOUSE_DOWN,
 119                                          _e_wid_desk_cb_config, dd);
 120    dd->configurable = enable;
 121 }
 122
 123 /* local function prototypes */
 124 static void
 125 _e_wid_data_del(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 126 {
 127    E_Widget_Desk_Data *dd;
 128    dd = data;
 129    if (!dd) return;
 130    if (dd->bg_upd_hdl) ecore_event_handler_del(dd->bg_upd_hdl);
 131    if (dd->thumb) evas_object_del(dd->thumb);
 132    E_FREE(dd);
 133 }
 134
 135 static void
 136 _e_wid_del_hook(Evas_Object *obj)
 137 {
 138    E_Widget_Data *wd;
 139    Evas_Object *o;
 140
 141    if (!(wd = e_widget_data_get(obj))) return;
 142
 143    EINA_LIST_FREE(wd->desks, o)
 144      evas_object_del(o);
 145
 146    E_FREE(wd);
 147 }
 148
 149 static void
 150 _e_wid_reconfigure(E_Widget_Data *wd)
 151 {
 152    Eina_List *l, *ll;
 153    Evas_Object *dw;
 154    E_Zone *zone;
 155    int tw, th, mw, mh, y;
 156    E_Widget_Desk_Data *dd;
 157    double zone_ratio, desk_ratio;
 158
 159    zone = e_util_zone_current_get(e_manager_current_get());
 160
 161    evas_object_geometry_get(wd->table, NULL, NULL, &tw, &th);
 162    if ((tw == 0) || (th == 0))
 163      {
 164         mw = mh = 0;
 165      }
 166    else
 167      {
 168         zone_ratio = (double) zone->w / zone->h;
 169         desk_ratio = (tw / wd->dx) / (th / wd->dy);
 170
 171         if (zone_ratio > desk_ratio)
 172           {
 173              mw = tw / wd->dx;
 174              mh = mw / zone_ratio;
 175           }
 176         else
 177           {
 178              mh = th / wd->dy;
 179              mw = mh * zone_ratio;
 180           }
 181      }
 182
 183    EINA_LIST_FOREACH_SAFE (wd->desks, l, ll, dw)
 184      {
 185         if (!(dd = evas_object_data_get(dw, "desk_data"))) continue;
 186         if ((dd->x < wd->dx) && (dd->y < wd->dy))
 187           {
 188              evas_object_size_hint_min_set(dw, mw, mh);
 189              evas_object_size_hint_max_set(dw, mw, mh);
 190           }
 191         else
 192           {
 193              evas_object_del(dd->thumb);
 194              evas_object_del(dw);
 195              wd->desks = eina_list_remove(wd->desks, dw);
 196           }
 197      }
 198
 199    for (y = 0; y < wd->dy; y++)
 200      {
 201         int x, sx;
 202
 203         if (y >= wd->cy) sx = 0;
 204         else sx = wd->cx;
 205         for (x = sx; x < wd->dx; x++)
 206           {
 207              Evas_Object *dp;
 208
 209              dp = e_widget_deskpreview_desk_add(wd->obj, zone, x, y, mw, mh);
 210              evas_object_size_hint_aspect_set(dp, EVAS_ASPECT_CONTROL_BOTH, zone->w, zone->h);
 211              evas_object_table_pack(wd->table, dp, x, y, 1, 1);
 212              wd->desks = eina_list_append(wd->desks, dp);
 213           }
 214      }
 215
 216    wd->cx = wd->dx;
 217    wd->cy = wd->dy;
 218 }
 219
 220 static void
 221 _e_wid_desk_cb_config(void *data, Evas *evas __UNUSED__, Evas_Object *obj __UNUSED__, void *event)
 222 {
 223    E_Widget_Desk_Data *dd;
 224    Evas_Event_Mouse_Down *ev;
 225
 226    ev = event;
 227    if (!(dd = data)) return;
 228    if (ev->button == 1)
 229      {
 230         E_Container *con;
 231         char buff[256];
 232
 233         con = e_container_current_get(e_manager_current_get());
 234         snprintf(buff, sizeof(buff), "%i %i %i %i",
 235                  dd->con, dd->zone, dd->x, dd->y);
 236         e_configure_registry_call("internal/desk", con, buff);
 237      }
 238 }
 239
 240 static void
 241 _e_wid_cb_resize(void *data __UNUSED__, Evas *evas __UNUSED__, Evas_Object *obj, void *event __UNUSED__)
 242 {
 243    E_Widget_Data *wd;
 244
 245    if (!(wd = e_widget_data_get(obj))) return;
 246    _e_wid_reconfigure(wd);
 247 }
 248
 249 static Eina_Bool
 250 _e_wid_cb_bg_update(void *data, int type, void *event)
 251 {
 252    E_Event_Bg_Update *ev;
 253    E_Widget_Desk_Data *dd;
 254
 255    if (type != E_EVENT_BG_UPDATE) return ECORE_CALLBACK_PASS_ON;
 256    if (!(dd = data)) return ECORE_CALLBACK_PASS_ON;
 257    ev = event;
 258
 259    if (((ev->container < 0) || (dd->con == ev->container)) &&
 260        ((ev->zone < 0) || (dd->zone == ev->zone)) &&
 261        ((ev->desk_x < 0) || (dd->x == ev->desk_x)) &&
 262        ((ev->desk_y < 0) || (dd->y == ev->desk_y)))
 263      {
 264         const char *bgfile;
 265
 266         bgfile = e_bg_file_get(dd->con, dd->zone, dd->x, dd->y);
 267         e_icon_file_edje_set(dd->thumb, bgfile, "e/desktop/background");
 268      }
 269
 270    return ECORE_CALLBACK_PASS_ON;
 271 }
 272