Efl text format: change "halign" and "valign" to use enums

Value-based alignment (e.g. 0.5, 0.3 etc) isn't very practical.
Horizontal and vertical alignments will be assigned with enums
"left", "center", "right", "auto", "locale", for horizontal alignment,
and "top", "center" and "bottom" for vertical alignment.

This changes the previously added "halign" and "valign" properties.

src/lib/efl/interfaces/efl_text_format.eo

@@ -7,6 +7,24 @@ enum Efl.Text.Format.Wrap {
    hyphenation [[Wrap mode hyphenation]]
 }
 
+enum Efl.Text.Format.Horizontal_Alignment_Type {
+   [[Horizontal alignment of the text]]
+   legacy: efl_text_horizontal_alignment;
+   auto,    [[Respects LTR/RTL (bidirectional) settings]]
+   locale,  [[Respects locale's langauge settings]]
+   left,    [[Text is placed at the left end of the line]]
+   right,   [[Text is placed at the right end of the line]]
+   center   [[Text is places at the center of the line]]
+}
+
+enum Efl.Text.Format.Vertical_Alignment_Type {
+   [[Horizontal alignment of the text]]
+   legacy: efl_text_vertical_alignment;
+   top,    [[Text is placed at the top]]
+   center, [[Text is placed at the center]]
+   bottom  [[Text is placed at the bottom]]
+}
+
 interface Efl.Text.Format {
    [[The look and layout of the text
 
@@ -40,18 +58,16 @@ interface Efl.Text.Format {
       }
 
       @property halign {
-         [[Horizontal alignment of text (number from 0.0 to 1.0)]]
-         values
-         {
-            value: double;
+         [[Horizontal alignment of text]]
+         values {
+            value: Efl.Text.Format.Horizontal_Alignment_Type;
          }
       }
 
       @property valign {
-         [[Vertical alignment of text (number from -1.0 to 1.0)]]
-         values
-         {
-            value: double;
+         [[Vertical alignment of text]]
+         values {
+            value: Efl.Text.Format.Vertical_Alignment_Type;
          }
       }
 

src/lib/efl/interfaces/efl_text_types.eot

@@ -31,4 +31,3 @@ enum Efl.Text.Cursor.Cursor_Type
    before, [[Cursor type before]]
    under [[Cursor type under]]
 }
-

src/lib/evas/canvas/evas_object_textblock.c

@@ -15379,35 +15379,82 @@ _efl_canvas_text_efl_text_format_multiline_get(Eo *obj EINA_UNUSED, Efl_Canvas_T
 }
 
 static void
-_efl_canvas_text_efl_text_format_halign_set(Eo *obj EINA_UNUSED, Efl_Canvas_Text_Data *o EINA_UNUSED, double value EINA_UNUSED)
+_efl_canvas_text_efl_text_format_halign_set(Eo *obj, Efl_Canvas_Text_Data *o, Efl_Text_Format_Horizontal_Alignment_Type type)
 {
-   if (value < 0.0)
+   if (type == EFL_TEXT_HORIZONTAL_ALIGNMENT_AUTO)
      {
-        _FMT_SET(halign_auto, EINA_TRUE);
+        _FMT_SET(halign_auto, EVAS_TEXTBLOCK_ALIGN_AUTO_NORMAL);
+     }
+   else if (type == EFL_TEXT_HORIZONTAL_ALIGNMENT_LOCALE)
+     {
+        _FMT_SET(halign_auto, EVAS_TEXTBLOCK_ALIGN_AUTO_LOCALE);
      }
    else
      {
+        double value = 0.0; // EFL_TEXT_HORIZONTAL_ALIGNMENT_LEFT
         _FMT(halign_auto) = EINA_FALSE;
+
+        if (type == EFL_TEXT_HORIZONTAL_ALIGNMENT_CENTER)
+          {
+             value = 0.5;
+          }
+        else if (type == EFL_TEXT_HORIZONTAL_ALIGNMENT_RIGHT)
+          {
+             value = 1.0;
+          }
         _FMT_SET(halign, value);
      }
 }
 
-static double
-_efl_canvas_text_efl_text_format_halign_get(Eo *obj EINA_UNUSED, Efl_Canvas_Text_Data *o EINA_UNUSED)
+static Efl_Text_Format_Horizontal_Alignment_Type
+_efl_canvas_text_efl_text_format_halign_get(Eo *obj EINA_UNUSED, Efl_Canvas_Text_Data *o)
 {
-   return (_FMT(halign_auto) ? -1.0 : _FMT(halign));
+   Efl_Text_Format_Horizontal_Alignment_Type ret =
+      EFL_TEXT_HORIZONTAL_ALIGNMENT_LEFT;
+
+   if (_FMT(halign_auto) == EVAS_TEXTBLOCK_ALIGN_AUTO_NORMAL)
+     {
+        ret = EFL_TEXT_HORIZONTAL_ALIGNMENT_AUTO;
+     }
+   else if (_FMT(halign_auto) == EVAS_TEXTBLOCK_ALIGN_AUTO_LOCALE)
+     {
+        ret = EFL_TEXT_HORIZONTAL_ALIGNMENT_LOCALE;
+     }
+   else if (EINA_DBL_EQ(_FMT(halign), 0.5))
+     {
+        ret = EFL_TEXT_HORIZONTAL_ALIGNMENT_CENTER;
+     }
+   else if (EINA_DBL_EQ(_FMT(halign), 1.0))
+     {
+        ret = EFL_TEXT_HORIZONTAL_ALIGNMENT_RIGHT;
+     }
+   return ret;
 }
 
 static void
-_efl_canvas_text_efl_text_format_valign_set(Eo *obj EINA_UNUSED, Efl_Canvas_Text_Data *o EINA_UNUSED, double value EINA_UNUSED)
+_efl_canvas_text_efl_text_format_valign_set(Eo *obj, Efl_Canvas_Text_Data *o,
+      Efl_Text_Format_Vertical_Alignment_Type type)
 {
-   _FMT_SET(valign, value);
+   double value = 0.0; // EFL_TEXT_VERTICAL_ALIGNMENT_TOP
+   if (type == EFL_TEXT_VERTICAL_ALIGNMENT_CENTER)
+     {
+        value = 0.5;
+     }
+   else if (type == EFL_TEXT_VERTICAL_ALIGNMENT_BOTTOM)
+     {
+        value = 1.0;
+     }
+   if (!EINA_DBL_EQ(o->valign, value))
+     {
+        o->valign = value;
+        _canvas_text_format_changed(obj, o);
+     }
 }
 
-static double
+static Efl_Text_Format_Vertical_Alignment_Type
 _efl_canvas_text_efl_text_format_valign_get(Eo *obj EINA_UNUSED, Efl_Canvas_Text_Data *o EINA_UNUSED)
 {
-   return _FMT(valign);
+   return o->valign;
 }
 
 static void