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Help: Improve AUTOMOC documentation layout

This commit is contained in:
Brad King 2016-04-15 14:04:28 -04:00
parent 840b830bc6
commit d350308af6
1 changed files with 23 additions and 16 deletions
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39
Help/prop_tgt/AUTOMOC.rst
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@ -6,22 +6,29 @@ Should the target be processed with automoc (for Qt projects).
AUTOMOC is a boolean specifying whether CMake will handle the Qt ``moc``
preprocessor automatically, i.e. without having to use the
:module:`QT4_WRAP_CPP() <FindQt4>` or QT5_WRAP_CPP() macro. Currently Qt4 and Qt5 are
supported. When this property is set ``ON``, CMake will scan the
source files at build time and invoke moc accordingly. If an ``#include``
statement like ``#include "moc_foo.cpp"`` is found, the ``Q_OBJECT`` class
declaration is expected in the header, and ``moc`` is run on the header
file. If an ``#include`` statement like ``#include "foo.moc"`` is found, then
a ``Q_OBJECT`` is expected in the current source file and ``moc`` is run on
the file itself. Additionally, header files with the same base name (like
``foo.h``) or ``_p`` appended to the base name (like ``foo_p.h``) are parsed
for ``Q_OBJECT`` macros, and if found, ``moc`` is also executed on those files.
``AUTOMOC`` checks multiple header alternative extensions, such as
``hpp``, ``hxx`` etc when searching for headers.
The resulting moc files, which are not included as shown above in any
of the source files are included in a generated
``<targetname>_automoc.cpp`` file, which is compiled as part of the
target. This property is initialized by the value of the
:variable:`CMAKE_AUTOMOC` variable if it is set when a target is created.
supported.
When this property is set ``ON``, CMake will scan the
source files at build time and invoke moc accordingly.
* If an ``#include`` statement like ``#include "moc_foo.cpp"`` is found,
the ``Q_OBJECT`` class declaration is expected in the header, and
``moc`` is run on the header file.
* If an ``#include`` statement like ``#include "foo.moc"`` is found,
then a ``Q_OBJECT`` is expected in the current source file and ``moc``
is run on the file itself. Additionally, header files with the same
base name (like ``foo.h``) or ``_p`` appended to the base name (like
``foo_p.h``) are parsed for ``Q_OBJECT`` macros, and if found, ``moc``
is also executed on those files. ``AUTOMOC`` checks multiple header
alternative extensions, such as ``hpp``, ``hxx`` etc when searching
for headers. The resulting moc files, which are not included as shown
above in any of the source files are included in a generated
``<targetname>_automoc.cpp`` file, which is compiled as part of the
target.
This property is initialized by the value of the :variable:`CMAKE_AUTOMOC`
variable if it is set when a target is created.
Additional command line options for moc can be set via the
:prop_tgt:`AUTOMOC_MOC_OPTIONS` property.