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This add an overload to disconnect which is symetrical to the new
syntax of connect.
It is possible to diconnect connection like this:
QObject::connect( sender, &Sender::valueChanged,
receiver, &Receiver::updateValue );
QObject::disconnect( sender, &Sender::valueChanged,
receiver, &Receiver::updateValue );
This overload only work with pointer to member function, and not static
functions or functors.
The test is copied from tst_QObject::disconnect(), just
changed the syntax of the connection and disconnection
Change-Id: Ia8f819100cb12098e32877522b97b732b1e676a8
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
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In addition to the old connection syntax, you can now connect using function pointers.
connect(sender, &Sender::valueChanged,
receiver, &Receiver::updateValue );
You can connect also to functor or C++11 lambdas
The connections are now type safe (no more problems with namespaces
or typedefs). Implicit type conversion is also supported.
The new syntax forces us to change the meaning of signal form
protected to public, in order to be able to access the signal's
address everywhere
The way it works is by introducing new overload of QObject::connect
that take function pointer as parametter. Those new overload are template
function, that are implemented inline. The actual implementation is
in QObject::connectImpl which take a QObject::QSlotObject* as parametter
for the slot. That slot object contains a virtual function which call
the slot which has to be implemented in the header as it depends on the
template parametter. So the internals of QObjectPrivate::Connection
will store this QObjectSlot* in order to be able to make the call.
You can read a full description here:
http://developer.qt.nokia.com/wiki/New_Signal_Slot_Syntax
History of commits before it was imported on gerrit:
https://qt.gitorious.org/~ogoffart/qt/ogoffarts-qtbase/commits/qobject_connect_ptr
Thread on the mailing list:
http://lists.qt.nokia.com/pipermail/qt5-feedback/2011-August/000796.html
http://lists.qt.nokia.com/pipermail/qt5-feedback/2011-September/001248.html
(The discussions on the mailing list were about trying to find a
solution that do not need making signals public, but no user friendly
solution was found)
Note: support for QueuedConnection, and the symetric QObject::disconnect is
added in another commit.
Qt::UniqueConnection is not supported yet in the new overload.
Change-Id: I67d08436b0720e7f2992be9f7e34770960fa58fa
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Merge-request: 40
Reviewed-by: olivier
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@nokia.com>
Change-Id: I1194ba0d8bba92ece3132171e230cece341ec127
Reviewed-on: http://codereview.qt.nokia.com/2957
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@nokia.com>
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This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:
http://qt.gitorious.org/qt/pages/GitIntroductionWithQt
If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.
Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
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