1143   \since 4.7

  1144 

  1145   Returns the resolved text direction.

  1146 

  1147   If the block has no explicit direction set, it will resolve the

  1148   direction from the blocks content. Returns either Qt::LeftToRight

  1149   or Qt::RightToLeft.

  1150 

  1151   \sa QTextFormat::layoutDirection(), QString::isRightToLeft(), Qt::LayoutDirection

  1152 */

  1153 Qt::LayoutDirection QTextBlock::textDirection() const

  1154 {

  1155     Qt::LayoutDirection dir = blockFormat().layoutDirection();

  1156     if (dir != Qt::LayoutDirectionAuto)

  1157         return dir;

  1158 

  1159     const QString buffer = p->buffer();

  1160 

  1161     const int pos = position();

  1162     QTextDocumentPrivate::FragmentIterator it = p->find(pos);

  1163     QTextDocumentPrivate::FragmentIterator end = p->find(pos + length() - 1); // -1 to omit the block separator char

  1164     for (; it != end; ++it) {

  1165         const QTextFragmentData * const frag = it.value();

  1166         const QChar *p = buffer.constData() + frag->stringPosition;

  1167         const QChar * const end = p + frag->size_array[0];

  1168         while (p < end) {

  1169             switch(QChar::direction(p->unicode()))

  1170             {

  1171             case QChar::DirL:

  1172                 return Qt::LeftToRight;

  1173             case QChar::DirR:

  1174             case QChar::DirAL:

  1175                 return Qt::RightToLeft;

  1176             default:

  1177                 break;

  1178             }

  1179             ++p;

  1180         }

  1181     }

  1182     return Qt::LeftToRight;

  1183 }

  1184 

  1185 /*!