add layout designer

src/font.cpp

@@ -21,6 +21,9 @@ bool Font::load(const std::string& ttf, int font_size, float font_scale)
         LOG("Font::load loaded");
         auto bitmap = std::make_unique<uint8_t[]>(w*h);
         chars.resize(num_chars);
+        //int offset = stbtt_FindMatchingFont(file.m_data, "Arial Bold", STBTT_MACSTYLE_DONTCARE);
+        //if (offset < 0)
+        //    offset = 0;
         stbtt_BakeFontBitmap(file.m_data, 0, (float)font_size*scale, bitmap.get(), w, h, start_char, num_chars, chars.data());
         calc_bounds();
         font_tex.create(w, h, GL_R8, GL_RED, bitmap.get());