Qt Reference Documentation

iterator Class Reference

(QTextBlock::iterator)

The QTextBlock::iterator class provides an iterator for reading the contents of a QTextBlock. More...

 #include <QTextBlock>

Public Functions

iterator ()
iterator ( const iterator & other )
bool atEnd () const
QTextFragment fragment () const
bool operator!= ( const iterator & other ) const
iterator & operator++ ()
iterator operator++ ( int )
iterator & operator-- ()
iterator operator-- ( int )
bool operator== ( const iterator & other ) const

Detailed Description

The QTextBlock::iterator class provides an iterator for reading the contents of a QTextBlock.

A block consists of a sequence of text fragments. This class provides a way to iterate over these, and read their contents. It does not provide a way to modify the internal structure or contents of the block.

An iterator can be constructed and used to access the fragments within a text block in the following way:

     QTextBlock::iterator it;
     for (it = currentBlock.begin(); !(it.atEnd()); ++it) {
         QTextFragment currentFragment = it.fragment();
         if (currentFragment.isValid())
             processFragment(currentFragment);
     }

See also QTextFragment.

Member Function Documentation

iterator::iterator ()

Constructs an iterator for this text block.

iterator::iterator ( const iterator & other )

Copy constructor. Constructs a copy of the other iterator.

bool iterator::atEnd () const

Returns true if the current item is the last item in the text block.

QTextFragment iterator::fragment () const

Returns the text fragment the iterator currently points to.

bool iterator::operator!= ( const iterator & other ) const

Retuns true if this iterator is different from the other iterator; otherwise returns false.

iterator & iterator::operator++ ()

The prefix ++ operator (++i) advances the iterator to the next item in the hash and returns an iterator to the new current item.

iterator iterator::operator++ ( int )

The postfix ++ operator (i++) advances the iterator to the next item in the text block and returns an iterator to the old current item.

iterator & iterator::operator-- ()

The prefix -- operator (--i) makes the preceding item current and returns an iterator pointing to the new current item.

iterator iterator::operator-- ( int )

The postfix -- operator (i--) makes the preceding item current and returns an iterator to the old current item.

bool iterator::operator== ( const iterator & other ) const

Retuns true if this iterator is the same as the other iterator; otherwise returns false.

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