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iterator Class

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

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iterator Class

  • Header: iterator

  • CMake:

    find_package(Qt6 REQUIRED COMPONENTS Gui)

    target_link_libraries(mytarget PRIVATE Qt6::Gui)

  • qmake: QT += gui

  • Group: iterator is part of Rich Text Processing APIs

Detailed Description

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:

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

See Also

See also QTextFragment

Member Function Documentation

 

[constexpr] iterator::iterator()

Constructs an iterator for this text block.

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

Returns 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

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

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