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[править] QTextBlock::iterator Class Reference
^{[модуль QtGui ]}

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

 #include <[[Qt:Документация 4.3.2/qtextblock | QTextBlock]]>

• Список всех членов, включая унаследованные

[править] Открытые функции

• 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

[править] Подробное описание

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.

[править] Описание функций-членов

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iterator::iterator ()

Constructs an iterator for this text block.

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iterator::iterator ( const iterator & other )

Copy constructor. Constructs a copy of the other iterator.

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bool iterator::atEnd () const

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

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QTextFragment iterator::fragment () const

Returns the text fragment the iterator currently points to.

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

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

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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.

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iterator iterator::operator++ ( int )

Эта перегруженная функция предоставлена для удобства.

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

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iterator & iterator::operator-- ()

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

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iterator iterator::operator-- ( int )

Эта перегруженная функция предоставлена для удобства.

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

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

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