Implement Font::MeasureString (TODO: double check!!)

src/JGL/Font.cpp

@@ -112,4 +112,43 @@ namespace JGL
     {
         return Font(path);
     }
+
+    Vector2 Font::MeasureString(const std::string &text, float ptSize) {
+
+        // TODO: Work in-progress implementation unfortunately.
+        // This is likely returning slightly incorrect results for likely several reasons.
+        // Half-ass solution for now ~ dawsh.
+
+        FT_BBox glyph_bbox;
+
+        Vector2 extents = Vector2(0,0);
+
+        for (const char& c : text)
+        {
+
+            FT_GlyphSlot slot = face->glyph;
+            auto glyph_index = FT_Get_Char_Index(this->face, c);
+
+            auto error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT);
+            if (error)
+                continue;
+
+
+
+
+            Vector2 advance = {static_cast<float>(slot->advance.x >> 6),
+                               static_cast<float>(slot->advance.y >> 6)};
+
+            extents += advance;
+        }
+
+        if (extents.y == 0)
+        {
+            extents.y = face->bbox.yMax / 64;
+        }
+
+        return extents;
+    }
+
+
 }