edje: Add dpi feature.

Summary:
This dpi is used to get the scale for each collection.
If each collection has a described dpi, it calculates a proper scale
based on the dpi and dpi which is described in the collection.

@feature

Test Plan:
If add dpi to collection of edc, the edje will save the value as the dpi of the collection.
For example, if the dpi of your device is 100, you just set dpi: 100 in the collection of edc.
If the edj is loaded in another device(dpi is 200), it will scaled 2 times.
It is possible that the described dpi of application and theme are different.
In that case, application and theme have a different scale.
It makes the edj that made in different environment works in one device.

Reviewers: seoz, zmike, JackDanielZ, Hermet, woohyun, cedric, raster

Reviewed By: raster

Subscribers: cedric

Differential Revision: https://phab.enlightenment.org/D1190

src/bin/edje/edje_cc.c

@@ -364,6 +364,7 @@ main(int argc, char **argv)
 				* does not load nicely as a NULL or 0 value
 				* and needs a special fallback initialization
 				*/
+   edje_file->base_scale = FROM_INT(1);
 
    source_edd();
    source_fetch();

src/bin/edje/edje_cc_handlers.c

@@ -201,6 +201,7 @@ static void st_color_class_color2(void);
 static void st_color_class_color3(void);
 
 static void ob_collections(void);
+static void st_collections_base_scale(void);
 
 static void ob_collections_group(void);
 static void st_collections_group_name(void);
@@ -516,6 +517,7 @@ New_Statement_Handler statement_handlers[] =
      IMAGE_SET_STATEMENTS("collections")
      {"collections.font", st_fonts_font}, /* dup */
      FONT_STYLE_CC_STATEMENTS("collections.")
+     {"collections.base_scale", st_collections_base_scale},
 
      {"collections.sounds.sample.name", st_collections_group_sound_sample_name},
      {"collections.sounds.sample.source", st_collections_group_sound_sample_source},
@@ -2463,6 +2465,37 @@ ob_collections(void)
      }
 }
 
+/**
+    @page edcref
+    @block
+        base_scale
+    @context
+        collections {
+            ..
+            base_scale: 1.2;
+            ..
+        }
+    @description
+        The base_scale is the standard scale value of the collection.
+        The default base_scale is 1.0. It means the collection is made in the environment
+        which is same with a desktop(The monitor has 96 dpi).
+        If you make a collection in another environment(ex: 115 dpi), you have to
+        set the base_scale(ex: 1.2). Then it will be shown same size in the desktop.
+    @endblock
+*/
+static void
+st_collections_base_scale(void)
+{
+   check_min_arg_count(1);
+
+   edje_file->base_scale = FROM_DOUBLE(parse_float_range(0, 0.0, 999999999.0));
+   if (edje_file->base_scale == ZERO)
+     {
+        ERR("The base_scale is 0.0. The value should be bigger than 0.0.");
+        exit(-1);
+     }
+}
+
 /**
    @edcsubsection{collections_sounds,Sounds}
  */

src/lib/edje/edje_cache.c

@@ -300,6 +300,11 @@ _edje_file_open(const Eina_File *f, const char *coll, int *error_ret, Edje_Part_
 	WRN("`%s` may use feature from a newer edje and could not show up as expected.",
             eina_file_filename_get(f));
      }
+   if (edf->base_scale <= ZERO)
+     {
+        edf->base_scale = FROM_INT(1);
+        WRN("The base_scale can not be a 0.0. It is changed the default value(1.0)");
+     }
 
    edf->path = eina_stringshare_add(eina_file_filename_get(f));
    edf->references = 1;

src/lib/edje/edje_calc.c

@@ -1437,8 +1437,8 @@ _edje_textblock_recalc_apply(Edje *ed, Edje_Real_Part *ep,
 {
    /* FIXME: this is just an hack. */
    FLOAT_T sc;
-   sc = ed->scale;
-   if (sc == ZERO) sc = _edje_scale;
+   sc = DIV(ed->scale, ed->file->base_scale);
+   if (sc == ZERO) sc = DIV(_edje_scale, ed->file->base_scale);
    if (chosen_desc->text.fit_x || chosen_desc->text.fit_y)
      {
         _edje_part_recalc_single_textblock(sc, ed, ep, chosen_desc, params,
@@ -2267,8 +2267,8 @@ _edje_part_recalc_single(Edje *ed,
    int minw = 0, minh = 0, maxw = 0, maxh = 0;
    FLOAT_T sc;
 
-   sc = ed->scale;
-   if (sc == ZERO) sc = _edje_scale;
+   sc = DIV(ed->scale, ed->file->base_scale);
+   if (sc == ZERO) sc = DIV(_edje_scale, ed->file->base_scale);
    _edje_part_recalc_single_min_max(sc, ed, ep, desc, &minw, &minh, &maxw, &maxh);
    if (minw < mmw) minw = mmw;
    if (minh < mmh) minh = mmh;
@@ -2651,8 +2651,8 @@ _edje_image_recalc_apply(Edje *ed, Edje_Real_Part *ep, Edje_Calc_Params *p3, Edj
 {
    FLOAT_T sc;
 
-   sc = ed->scale;
-   if (sc == 0.0) sc = _edje_scale;
+   sc = DIV(ed->scale, ed->file->base_scale);
+   if (sc == ZERO) sc = DIV(_edje_scale, ed->file->base_scale);
    eo_do(ep->object,
 	 evas_obj_image_fill_set(p3->type.common.fill.x, p3->type.common.fill.y,
 				 p3->type.common.fill.w, p3->type.common.fill.h),

src/lib/edje/edje_data.c

@@ -427,6 +427,7 @@ _edje_edd_init(void)
    EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_file, Edje_File, "version", version, EET_T_INT);
    EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_file, Edje_File, "minor", minor, EET_T_INT);
    EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_file, Edje_File, "feature_ver", feature_ver, EET_T_INT);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_file, Edje_File, "base_scale", base_scale, EDJE_T_FLOAT);
    EET_DATA_DESCRIPTOR_ADD_SUB(_edje_edd_edje_file, Edje_File, "external_dir", external_dir, _edje_edd_edje_external_directory);
    EET_DATA_DESCRIPTOR_ADD_SUB(_edje_edd_edje_file, Edje_File, "image_dir", image_dir, _edje_edd_edje_image_directory);
    EET_DATA_DESCRIPTOR_ADD_SUB(_edje_edd_edje_file, Edje_File, "sound_dir", sound_dir, _edje_edd_edje_sound_directory);

src/lib/edje/edje_entry.c

@@ -2118,8 +2118,8 @@ _edje_part_mouse_down_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_
                        d2 = d * d;
                        d = (r2->y + (r2->h / 2)) - cy;
                        d2 += d * d;
-                       sc = en->ed->scale;
-                       if (sc == ZERO) sc = _edje_scale;
+                       sc = DIV(en->ed->scale, en->ed->file->base_scale);
+                       if (sc == ZERO) sc = DIV(_edje_scale, en->ed->file->base_scale);
                        d = (Evas_Coord)MUL(FROM_INT(20), sc); // FIXME: maxing number!
                        d = d * d;
                        if (d1 < d2)

src/lib/edje/edje_private.h

@@ -478,6 +478,7 @@ struct _Edje_File
    int                             version;
    int				   minor;
    int                             feature_ver;
+   FLOAT_T                         base_scale;
 
    Eina_Hash                      *data;
    Eina_Hash			  *fonts;

src/lib/edje/edje_text.c

@@ -85,8 +85,8 @@ _edje_text_fit_x(Edje *ed, Edje_Real_Part *ep,
 {
    FLOAT_T sc;
 
-   sc = ed->scale;
-   if (sc == ZERO) sc = _edje_scale;
+   sc = DIV(ed->scale, ed->file->base_scale);
+   if (sc == ZERO) sc = DIV(_edje_scale, ed->file->base_scale);
 
    *free_text = 0;
    if (sw <= 1) return "";
@@ -179,8 +179,8 @@ _edje_text_recalc_apply(Edje *ed, Edje_Real_Part *ep,
 
    if ((ep->type != EDJE_RP_TYPE_TEXT) ||
        (!ep->typedata.text)) return;
-   sc = ed->scale;
-   if (sc == 0.0) sc = _edje_scale;
+   sc = DIV(ed->scale, ed->file->base_scale);
+   if (sc == ZERO) sc = DIV(_edje_scale, ed->file->base_scale);
    text = edje_string_get(&chosen_desc->text.text);
    font = _edje_text_class_font_get(ed, chosen_desc, &size, &sfont);
    filter = chosen_desc->text.filter.str;