Evas font: Support no bidi no shaping mode in font rendering.

For no bidi: just don't set the bidi stuff. I.e paragraph props and the
other stuff (including text_props_direction_set). If you disable BiDi you most
likely want to disable shaping as well.
For no shaping: Disable bidi (i.e don't set direction) and pass
EVAS_TEXT_PROPS_MODE_NONE to info create.

This will prove especially useful for textgrid, but not only.

SVN revision: 72032

legacy/evas/src/lib/canvas/evas_object_text.c

@@ -450,7 +450,7 @@ _evas_object_text_item_new(Evas_Object *obj, Evas_Object_Text *o,
      {
         ENFN->font_text_props_info_create(ENDT,
               fi, str + pos, &it->text_props,
-              o->bidi_par_props, it->text_pos, len);
+              o->bidi_par_props, it->text_pos, len, EVAS_TEXT_PROPS_MODE_SHAPE);
 
         ENFN->font_string_size_get(ENDT,
               o->font,

legacy/evas/src/lib/canvas/evas_object_textblock.c

@@ -3004,7 +3004,7 @@ skip:
                {
                   c->ENFN->font_text_props_info_create(c->ENDT,
                         cur_fi, str, &ti->text_props, c->par->bidi_props,
-                        ti->parent.text_pos, run_len);
+                        ti->parent.text_pos, run_len, EVAS_TEXT_PROPS_MODE_SHAPE);
                }
              str += run_len;
              script_len -= run_len;
@@ -3508,7 +3508,7 @@ _layout_ellipsis_item_new(Ctxt *c, const Evas_Object_Textblock_Item *cur_it)
 
         c->ENFN->font_text_props_info_create(c->ENDT,
               cur_fi, _ellip_str, &ellip_ti->text_props,
-              c->par->bidi_props, ellip_ti->parent.text_pos, len);
+              c->par->bidi_props, ellip_ti->parent.text_pos, len, EVAS_TEXT_PROPS_MODE_SHAPE);
      }
 
    _text_item_update_sizes(c, ellip_ti);

legacy/evas/src/lib/engines/common/evas_font_ot.c

@@ -243,7 +243,7 @@ _evas_common_font_ot_unicode_funcs_get(void)
 }
 
 static void
-_evas_common_font_ot_shape(hb_buffer_t *buffer, RGBA_Font_Int *fi)
+_evas_common_font_ot_shape(hb_buffer_t *buffer, RGBA_Font_Int *fi, Evas_Text_Props_Mode mode)
 {
    /* Create hb_font if not previously created */
    if (!fi->ft.hb_font)
@@ -258,12 +258,20 @@ _evas_common_font_ot_shape(hb_buffer_t *buffer, RGBA_Font_Int *fi)
               _evas_common_font_ot_font_funcs_get(), fi, NULL);
      }
 
-   hb_shape(fi->ft.hb_font, buffer, NULL, 0);
+   if (mode == EVAS_TEXT_PROPS_MODE_SHAPE)
+     {
+        hb_shape(fi->ft.hb_font, buffer, NULL, 0);
+     }
+   else
+     {
+        const char *shaper_list[] = { "fallback", NULL };
+        hb_shape_full(fi->ft.hb_font, buffer, NULL, 0, shaper_list);
+     }
 }
 
 EAPI Eina_Bool
 evas_common_font_ot_populate_text_props(const Eina_Unicode *text,
-      Evas_Text_Props *props, int len)
+      Evas_Text_Props *props, int len, Evas_Text_Props_Mode mode)
 {
    RGBA_Font_Int *fi;
    hb_buffer_t *buffer;
@@ -297,7 +305,7 @@ evas_common_font_ot_populate_text_props(const Eina_Unicode *text,
    /* FIXME: add run-time conversions if needed, which is very unlikely */
    hb_buffer_add_utf32(buffer, (const uint32_t *) text, slen, 0, slen);
 
-   _evas_common_font_ot_shape(buffer, fi);
+   _evas_common_font_ot_shape(buffer, fi, mode);
 
    props->len = hb_buffer_get_length(buffer);
    props->info->ot = calloc(props->len,

legacy/evas/src/lib/engines/common/evas_font_ot.h

@@ -40,6 +40,6 @@ evas_common_font_ot_cluster_size_get(const Evas_Text_Props *props, size_t char_i
 
 EAPI Eina_Bool
 evas_common_font_ot_populate_text_props(const Eina_Unicode *text,
-      Evas_Text_Props *props, int len);
+      Evas_Text_Props *props, int len, Evas_Text_Props_Mode mode);
 #endif
 

legacy/evas/src/lib/engines/common/evas_text_utils.c

@@ -283,46 +283,16 @@ evas_common_text_props_merge(Evas_Text_Props *item1,
    PROPS_CHANGE(item1);
 }
 
-EAPI Eina_Bool
-evas_common_text_props_content_create(void *_fi, const Eina_Unicode *text,
-      Evas_Text_Props *text_props, const Evas_BiDi_Paragraph_Props *par_props,
-      size_t par_pos, int len)
-{
-   RGBA_Font_Int *fi = (RGBA_Font_Int *) _fi;
-
-   if (text_props->info)
-     {
-        evas_common_text_props_content_unref(text_props);
-     }
-   if (len == 0)
-     {
-        text_props->info = NULL;
-        text_props->start = text_props->len = text_props->text_offset = 0;
-     }
-   text_props->info = calloc(1, sizeof(Evas_Text_Props_Info));
-
-   text_props->font_instance = fi;
-
-   evas_common_font_int_reload(fi);
-   if (fi->src->current_size != fi->size)
-     {
-        evas_common_font_source_reload(fi->src);
-        FTLOCK();
-        FT_Activate_Size(fi->ft.size);
-        FTUNLOCK();
-        fi->src->current_size = fi->size;
-     }
-
-   text_props->changed = EINA_TRUE;
-
 #ifdef OT_SUPPORT
+static inline void
+_content_create_ot(RGBA_Font_Int *fi, const Eina_Unicode *text,
+      Evas_Text_Props *text_props, int len, Evas_Text_Props_Mode mode)
+{
    size_t char_index;
    Evas_Font_Glyph_Info *gl_itr;
    Evas_Coord pen_x = 0, adjust_x = 0;
-   (void) par_props;
-   (void) par_pos;
 
-   evas_common_font_ot_populate_text_props(text, text_props, len);
+   evas_common_font_ot_populate_text_props(text, text_props, len, mode);
 
    gl_itr = text_props->info->glyph;
    for (char_index = 0 ; char_index < text_props->len ; char_index++)
@@ -380,7 +350,14 @@ evas_common_text_props_content_create(void *_fi, const Eina_Unicode *text,
         fi = text_props->font_instance;
         gl_itr++;
      }
-#else
+}
+#endif
+
+static inline void
+_content_create_regular(RGBA_Font_Int *fi, const Eina_Unicode *text,
+      Evas_Text_Props *text_props, const Evas_BiDi_Paragraph_Props *par_props,
+      size_t par_pos, int len, Evas_Text_Props_Mode mode)
+{
    /* We are walking the string in visual ordering */
    Evas_Font_Glyph_Info *gl_itr;
    Eina_Bool use_kerning;
@@ -390,12 +367,16 @@ evas_common_text_props_content_create(void *_fi, const Eina_Unicode *text,
    int adv_d, i;
 #if !defined(OT_SUPPORT) && defined(BIDI_SUPPORT)
    Eina_Unicode *base_str = NULL;
-   if (text_props->bidi.dir == EVAS_BIDI_DIRECTION_RTL)
+   if (mode == EVAS_TEXT_PROPS_MODE_SHAPE)
      {
-        text = base_str = eina_unicode_strndup(text, len);
-        evas_bidi_shape_string(base_str, par_props, par_pos, len);
+        if (text_props->bidi.dir == EVAS_BIDI_DIRECTION_RTL)
+          {
+             text = base_str = eina_unicode_strndup(text, len);
+             evas_bidi_shape_string(base_str, par_props, par_pos, len);
+          }
      }
 #else
+   (void) mode;
    (void) par_props;
    (void) par_pos;
 #endif
@@ -475,6 +456,46 @@ evas_common_text_props_content_create(void *_fi, const Eina_Unicode *text,
    if (base_str)
       free(base_str);
 # endif
+}
+
+EAPI Eina_Bool
+evas_common_text_props_content_create(void *_fi, const Eina_Unicode *text,
+      Evas_Text_Props *text_props, const Evas_BiDi_Paragraph_Props *par_props,
+      size_t par_pos, int len, Evas_Text_Props_Mode mode)
+{
+   RGBA_Font_Int *fi = (RGBA_Font_Int *) _fi;
+
+   if (text_props->info)
+     {
+        evas_common_text_props_content_unref(text_props);
+     }
+   if (len == 0)
+     {
+        text_props->info = NULL;
+        text_props->start = text_props->len = text_props->text_offset = 0;
+     }
+   text_props->info = calloc(1, sizeof(Evas_Text_Props_Info));
+
+   text_props->font_instance = fi;
+
+   evas_common_font_int_reload(fi);
+   if (fi->src->current_size != fi->size)
+     {
+        evas_common_font_source_reload(fi->src);
+        FTLOCK();
+        FT_Activate_Size(fi->ft.size);
+        FTUNLOCK();
+        fi->src->current_size = fi->size;
+     }
+
+   text_props->changed = EINA_TRUE;
+
+#ifdef OT_SUPPORT
+   (void) par_props;
+   (void) par_pos;
+   _content_create_ot(fi, text, text_props, len, mode);
+#else
+   _content_create_regular(fi, text, text_props, par_props, par_pos, len, mode);
 #endif
 
    text_props->text_len = len;

legacy/evas/src/lib/engines/common/evas_text_utils.h

@@ -53,6 +53,12 @@ struct _Evas_Font_Glyph_Info
    Evas_Coord pen_after;
 };
 
+typedef enum
+{
+   EVAS_TEXT_PROPS_MODE_NONE = 0,
+   EVAS_TEXT_PROPS_MODE_SHAPE
+} Evas_Text_Props_Mode;
+
 
 void
 evas_common_text_props_bidi_set(Evas_Text_Props *props,
@@ -64,7 +70,7 @@ evas_common_text_props_script_set(Evas_Text_Props *props, Evas_Script_Type scr);
 EAPI Eina_Bool
 evas_common_text_props_content_create(void *_fi, const Eina_Unicode *text,
       Evas_Text_Props *text_props, const Evas_BiDi_Paragraph_Props *par_props,
-      size_t par_pos, int len);
+      size_t par_pos, int len, Evas_Text_Props_Mode mode);
 
 void
 evas_common_text_props_content_copy_and_ref(Evas_Text_Props *dst,

legacy/evas/src/lib/include/evas_private.h

@@ -836,7 +836,7 @@ struct _Evas_Func
    void (*image_content_hint_set)          (void *data, void *surface, int hint);
    int  (*image_content_hint_get)          (void *data, void *surface);
    int  (*font_pen_coords_get)             (void *data, Evas_Font_Set *font, const Evas_Text_Props *intl_props, int pos, int *cpen_x, int *cy, int *cadv, int *ch);
-   Eina_Bool (*font_text_props_info_create) (void *data __UNUSED__, Evas_Font_Instance *fi, const Eina_Unicode *text, Evas_Text_Props *intl_props, const Evas_BiDi_Paragraph_Props *par_props, size_t pos, size_t len);
+   Eina_Bool (*font_text_props_info_create) (void *data __UNUSED__, Evas_Font_Instance *fi, const Eina_Unicode *text, Evas_Text_Props *intl_props, const Evas_BiDi_Paragraph_Props *par_props, size_t pos, size_t len, Evas_Text_Props_Mode mode);
    int  (*font_right_inset_get)            (void *data, Evas_Font_Set *font, const Evas_Text_Props *text_props);
 
 #if 0 // filtering disabled

legacy/evas/src/modules/engines/software_generic/evas_engine.c

@@ -1241,10 +1241,10 @@ eng_font_pen_coords_get(void *data __UNUSED__, Evas_Font_Set *font, const Evas_T
 }
 
 static Eina_Bool
-eng_font_text_props_info_create(void *data __UNUSED__, Evas_Font_Instance *fi, const Eina_Unicode *text, Evas_Text_Props *text_props, const Evas_BiDi_Paragraph_Props *par_props, size_t par_pos, size_t len)
+eng_font_text_props_info_create(void *data __UNUSED__, Evas_Font_Instance *fi, const Eina_Unicode *text, Evas_Text_Props *text_props, const Evas_BiDi_Paragraph_Props *par_props, size_t par_pos, size_t len, Evas_Text_Props_Mode mode)
 {
    return evas_common_text_props_content_create((RGBA_Font_Int *) fi, text,
-         text_props, par_props, par_pos, len);
+         text_props, par_props, par_pos, len, mode);
 }
 
 static int