Remove centering facet from benchmark stream utilities

BasicString::format now supports center alignment for string types, so
this feature may be used instead of the custom centering facet.

Author: trflynn89

bench/util/stream_util.hpp

@@ -8,50 +8,6 @@
 
 namespace fly::benchmark {
 
-/**
- * Helper class to center text within a specified width within a steam.
- *
- * @author Timothy Flynn ([email protected])
- * @version Decmber 12, 2020
- */
-template <typename StringType>
-class Center
-{
-public:
-    /**
-     * Constructor.
-     *
-     * @param width The width to center the text within.
-     * @param value The text to be centered.
-     */
-    Center(std::size_t width, const StringType &value);
-
-    /**
-     * Print the centered text.
-     *
-     * @param stream The stream to print the text into.
-     * @param center The instance holding the centering data.
-     *
-     * @return The same stream object.
-     */
-    friend std::ostream &operator<<(std::ostream &stream, const Center &center)
-    {
-        center.print(stream);
-        return stream;
-    }
-
-private:
-    /**
-     * Print the centered text.
-     *
-     * @param stream The stream to print the text into.
-     */
-    void print(std::ostream &stream) const;
-
-    const std::streamsize m_width;
-    const StringType &m_value;
-};
-
 /**
  * Locale facet to format numbers with comma separators.
  *
@@ -72,33 +28,4 @@ class CommaPunctuation final : public std::numpunct<std::ios::char_type>
     std::string do_grouping() const override;
 };
 
-//==================================================================================================
-template <typename StringType>
-Center<StringType>::Center(std::size_t width, const StringType &value) :
-    m_width(static_cast<std::streamsize>(width)),
-    m_value(value)
-{
-}
-
-//==================================================================================================
-template <typename StringType>
-void Center<StringType>::print(std::ostream &stream) const
-{
-    const std::streamsize length = static_cast<std::streamsize>(m_value.size());
-
-    if (m_width > length)
-    {
-        const std::streamsize left = (m_width + length) / 2;
-
-        fly::detail::BasicStreamModifiers<std::string> scoped_modifiers(stream);
-        stream << std::right;
-        stream << std::setw(left) << m_value;
-        stream << std::setw(m_width - left) << "";
-    }
-    else
-    {
-        stream << m_value;
-    }
-}
-
 } // namespace fly::benchmark

bench/util/table.hpp

@@ -264,7 +264,7 @@ void Table<Args...>::print_title(std::ostream &stream, std::size_t table_width)
     const std::size_t title_width = table_width - 4;
 
     auto title = std::string_view(m_title).substr(0, title_width);
-    stream << style << fly::String::format(" {} ", Center(title_width, title));
+    stream << style << fly::String::format(" {:^{}} ", title, title_width);
 
     print_column_separator(stream, s_border_style) << '\n';
     print_row_separator(stream, table_width);
@@ -281,7 +281,7 @@ void Table<Args...>::print_headers(std::ostream &stream, std::size_t table_width
         const auto style = fly::Styler(s_header_style, s_header_color);
         stream << style;
 
-        stream << fly::String::format(" {} ", Center(m_column_widths[index], m_headers[index]));
+        stream << fly::String::format(" {:^{}} ", m_headers[index], m_column_widths[index]);
     }
 
     print_column_separator(stream, s_border_style) << '\n';