qsignalmapper.3qt

linux下GUI编程工具qt的在线连接帮助手册

'\" t
.TH QSignalMapper 3qt "11 October 2001" "Trolltech AS" \" -*- nroff -*-
.\" Copyright 1992-2001 Trolltech AS.  All rights reserved.  See the
.\" license file included in the distribution for a complete license
.\" statement.
.\"
.ad l
.nh
.SH NAME
QSignalMapper \- Bundles signals from identifiable senders
.PP
\fC#include <qsignalmapper.h>\fR
.PP
Inherits QObject.
.PP
.SS "Public Members"
.in +1c
.ti -1c
.BI "\fBQSignalMapper\fR ( QObject * parent, const char * name = 0 )"
.br
.ti -1c
.BI "\fB~QSignalMapper\fR ()"
.br
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.BI "virtual void \fBsetMapping\fR ( const QObject * sender, int identifier )"
.br
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.BI "virtual void \fBsetMapping\fR ( const QObject * sender, const QString & identifier )"
.br
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.BI "void \fBremoveMappings\fR ( const QObject * sender )"
.br
.in -1c
.SS "Public Slots"
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.BI "void \fBmap\fR ()"
.br
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.SS "Signals"
.in +1c
.ti -1c
.BI "void \fBmapped\fR ( int )"
.br
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.BI "void \fBmapped\fR ( const QString & )"
.br
.in -1c
.SH DESCRIPTION
The QSignalMapper class bundles signals from identifiable senders.
.PP
This class collects a set of parameterless signals, and re-emits them with integer or string parameters corresponding to the object that sent the signal.
.PP
See also Input/Output and Networking.
.SH MEMBER FUNCTION DOCUMENTATION
.SH "QSignalMapper::QSignalMapper ( QObject * parent, const char * name = 0 )"
Constructs a QSignalMapper with parent \fIparent\fR and name \fIname\fR. Like all QObjects, it will be deleted when the parent is deleted.
.SH "QSignalMapper::~QSignalMapper ()"
Destroys the QSignalMapper.
.SH "void QSignalMapper::map ()\fC [slot]\fR"
This slot emits signals based on which object sends signals to it.
.PP
Example: i18n/main.cpp.
.SH "void QSignalMapper::mapped ( int )\fC [signal]\fR"
This signal is emitted when map() is signaled from an object that has an integer mapping set.
.PP
See also setMapping().
.PP
Example: i18n/main.cpp.
.SH "void QSignalMapper::mapped ( const QString & )\fC [signal]\fR"
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
.PP
This signal is emitted when map() is signaled from an object that has a string mapping set.
.PP
See also setMapping().
.SH "void QSignalMapper::removeMappings ( const QObject * sender )"
Removes all mappings for \fIsender\fR. This is done automatically when mapped objects are destroyed.
.SH "void QSignalMapper::setMapping ( const QObject * sender, int identifier )\fC [virtual]\fR"
Adds a mapping so that when map() is signaled from the given \fIsender\fR, the signal mapped(\fIidentifier\fR) is emitted.
.PP
There may be at most one integer identifier for each object.
.PP
Example: i18n/main.cpp.
.SH "void QSignalMapper::setMapping ( const QObject * sender, const QString & identifier )\fC [virtual]\fR"
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
.PP
Adds a mapping so that when map() is signaled from the given \fIsender\fR, the signal mapper(\fIidentifier\fR) is emitted.
.PP
There may be at most one string identifier for each object, and
it may not be null.

.SH "SEE ALSO"
.BR http://doc.trolltech.com/qsignalmapper.html
.BR http://www.trolltech.com/faq/tech.html
.SH COPYRIGHT
Copyright 1992-2001 Trolltech AS, http://www.trolltech.com.  See the
license file included in the distribution for a complete license
statement.
.SH AUTHOR
Generated automatically from the source code.
.SH BUGS
If you find a bug in Qt, please report it as described in
.BR http://doc.trolltech.com/bughowto.html .
Good bug reports help us to help you. Thank you.
.P
The definitive Qt documentation is provided in HTML format; it is
located at $QTDIR/doc/html and can be read using Qt Assistant or with
a web browser. This man page is provided as a convenience for those
users who prefer man pages, although this format is not officially
supported by Trolltech. 
.P
If you find errors in this manual page, please report them to
.BR [e-mail] .
Please include the name of the manual page (qsignalmapper.3qt) and the Qt
version (3.0.0).