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iterator Class

(QTextBlock::iterator)

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

Header: #include <iterator>
qmake: QT += gui

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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