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82 lines
3.1 KiB
82 lines
3.1 KiB
13 years ago
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'\" t
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.TH QGLayoutIterator 3qt "2 February 2007" "Trolltech AS" \" -*- nroff -*-
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.\" Copyright 1992-2007 Trolltech ASA. All rights reserved. See the
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.\" license file included in the distribution for a complete license
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.\" statement.
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.\"
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.ad l
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.nh
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.SH NAME
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QGLayoutIterator \- Abstract base class of internal layout iterators
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.SH SYNOPSIS
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\fC#include <qlayout.h>\fR
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.PP
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.SS "Public Members"
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.in +1c
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.ti -1c
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.BI "virtual \fB~QGLayoutIterator\fR ()"
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.br
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.ti -1c
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.BI "virtual QLayoutItem * \fBnext\fR () = 0"
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.br
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.ti -1c
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.BI "virtual QLayoutItem * \fBcurrent\fR () = 0"
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.br
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.ti -1c
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.BI "virtual QLayoutItem * \fBtakeCurrent\fR () = 0"
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.br
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.in -1c
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.SH DESCRIPTION
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The QGLayoutIterator class is an abstract base class of internal layout iterators.
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.PP
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(This class is \fInot\fR OpenGL related, it just happens to start with the letters QGL...)
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.PP
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Subclass this class to create a custom layout. The functions that must be implemented are next(), current(), and takeCurrent().
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.PP
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The QGLayoutIterator implements the functionality of QLayoutIterator. Each subclass of QLayout needs a QGLayoutIterator subclass.
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.PP
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See also Widget Appearance and Style and Layout Management.
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.SH MEMBER FUNCTION DOCUMENTATION
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.SH "QGLayoutIterator::~QGLayoutIterator ()\fC [virtual]\fR"
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Destroys the iterator
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.SH "QLayoutItem * QGLayoutIterator::current ()\fC [pure virtual]\fR"
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Implemented in subclasses to return the current item, or 0 if there is no current item.
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.PP
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Examples:
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.)l customlayout/border.cpp, customlayout/card.cpp, and customlayout/flow.cpp.
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.SH "QLayoutItem * QGLayoutIterator::next ()\fC [pure virtual]\fR"
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Implemented in subclasses to move the iterator to the next item and return that item, or 0 if there is no next item.
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.PP
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Examples:
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.)l customlayout/border.cpp, customlayout/card.cpp, and customlayout/flow.cpp.
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.SH "QLayoutItem * QGLayoutIterator::takeCurrent ()\fC [pure virtual]\fR"
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Implemented in subclasses. The function must remove the current item from the layout without deleting it, move the iterator to the next item and return the removed item, or 0 if no item was removed.
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.PP
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Examples:
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.)l customlayout/border.cpp, customlayout/card.cpp, and customlayout/flow.cpp.
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.SH "SEE ALSO"
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.BR http://doc.trolltech.com/qglayoutiterator.html
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.BR http://www.trolltech.com/faq/tech.html
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.SH COPYRIGHT
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Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the
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license file included in the distribution for a complete license
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statement.
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.SH AUTHOR
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Generated automatically from the source code.
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.SH BUGS
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If you find a bug in Qt, please report it as described in
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.BR http://doc.trolltech.com/bughowto.html .
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Good bug reports help us to help you. Thank you.
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.P
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The definitive Qt documentation is provided in HTML format; it is
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located at $QTDIR/doc/html and can be read using Qt Assistant or with
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a web browser. This man page is provided as a convenience for those
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users who prefer man pages, although this format is not officially
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supported by Trolltech.
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.P
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If you find errors in this manual page, please report them to
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.BR qt-bugs@trolltech.com .
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Please include the name of the manual page (qglayoutiterator.3qt) and the Qt
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version (3.3.8).
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