Update the TCON (genre) frame as we create it so that we don't keep ID3v2.3

formatted data sitting around waiting to be written to 2.4 tags.

BUG:132018


git-svn-id: svn://anonsvn.kde.org/home/kde/trunk/kdesupport/taglib@578687 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

toolkit/tstring.cpp

@@ -287,6 +287,14 @@ int String::find(const String &s, int offset) const
     return -1;
 }
 
+bool String::startsWith(const String &s) const
+{
+  if(s.length() > length())
+    return false;
+
+  return substr(0, s.length()) == s;
+}
+
 String String::substr(uint position, uint n) const
 {
   if(n > position + d->data.size())
@@ -325,6 +333,11 @@ TagLib::uint String::size() const
   return d->data.size();
 }
 
+TagLib::uint String::length() const
+{
+  return size();
+}
+
 bool String::isEmpty() const
 {
   return d->data.size() == 0;

toolkit/tstring.h

@@ -219,6 +219,11 @@ namespace TagLib {
      */
     int find(const String &s, int offset = 0) const;
 
+    /*!
+     * Returns true if the strings starts with the substring \a s.
+     */
+    bool startsWith(const String &s) const;
+
     /*!
      * Extract a substring from this string starting at \a position and
      * continuing for \a n characters.
@@ -243,6 +248,11 @@ namespace TagLib {
      */
     uint size() const;
 
+    /*!
+     * Returns the length of the string.  Equivalent to size().
+     */
+    uint length() const;
+
     /*!
      * Returns true if the string is empty.
      *