Autogen: Doc: Update documentation for (CMAKE_)AUTOMOC_MACRO_NAMES

Help/manual/cmake-qt.7.rst

@@ -59,9 +59,10 @@ The :prop_tgt:`AUTOMOC` target property controls whether :manual:`cmake(1)`
 inspects the C++ files in the target to determine if they require ``moc`` to
 be run, and to create rules to execute ``moc`` at the appropriate time.
 
-If a ``Q_OBJECT`` or ``Q_GADGET`` macro is found in a header file, ``moc``
-will be run on the file.  The result will be put into a file named according
-to ``moc_<basename>.cpp``.  If the macro is found in a C++ implementation
+If a macro from :prop_tgt:`AUTOMOC_MACRO_NAMES` is found in a header file,
+``moc`` will be run on the file.  The result will be put into a file named
+according to ``moc_<basename>.cpp``.
+If the macro is found in a C++ implementation
 file, the moc output will be put into a file named according to
 ``<basename>.moc``, following the Qt conventions.  The ``<basename>.moc`` must
 be included by the user in the C++ implementation file with a preprocessor
@@ -95,9 +96,7 @@ following targets by setting the :variable:`CMAKE_AUTOMOC` variable.  The
 options to pass to ``moc``. The :variable:`CMAKE_AUTOMOC_MOC_OPTIONS`
 variable may be populated to pre-set the options for all following targets.
 
-The appearance of the strings ``Q_OBJECT`` or ``Q_GADGET`` in a source file
-determines if it needs to be ``moc`` processed. To search for additional
-strings, list them in :prop_tgt:`AUTOMOC_MACRO_NAMES`.
+Additional macro names to search for can be added to :prop_tgt:`AUTOMOC_MACRO_NAMES`.
 
 Additional ``moc`` dependency file names can be extracted from source code
 by using :prop_tgt:`AUTOMOC_DEPEND_FILTERS`.

Help/prop_tgt/AUTOMOC.rst

@@ -12,8 +12,8 @@ When this property is set ``ON``, CMake will scan the header and
 source files at build time and invoke moc accordingly.
 
 * If an ``#include`` statement like ``#include "moc_<basename>.cpp"`` is found,
-  the ``Q_OBJECT`` or ``Q_GADGET`` macros are expected in an otherwise empty
-  line of the ``<basename>.h(xx)`` header file. ``moc`` is run on the header
+  a macro from :prop_tgt:`AUTOMOC_MACRO_NAMES` is expected to appear in the
+  ``<basename>.h(xx)`` header file. ``moc`` is run on the header
   file to generate ``moc_<basename>.cpp`` in the
   ``<AUTOGEN_BUILD_DIR>/include`` directory which is automatically added
   to the target's :prop_tgt:`INCLUDE_DIRECTORIES`.
@@ -26,11 +26,12 @@ source files at build time and invoke moc accordingly.
   * See :prop_tgt:`AUTOGEN_BUILD_DIR`.
 
 * If an ``#include`` statement like ``#include "<basename>.moc"`` is found,
-  then ``Q_OBJECT`` or ``Q_GADGET`` macros are expected in the current source
-  file and ``moc`` is run on the source file itself.
+  a macro from :prop_tgt:`AUTOMOC_MACRO_NAMES` is expected to appear in the
+  source file and ``moc`` is run on the source file itself.
 
 * Header files that are not included by an ``#include "moc_<basename>.cpp"``
-  statement are nonetheless scanned for ``Q_OBJECT`` or ``Q_GADGET`` macros.
+  statement are nonetheless scanned for a macro out of
+  :prop_tgt:`AUTOMOC_MACRO_NAMES`.
   The resulting ``moc_<basename>.cpp`` files are generated in custom
   directories and automatically included in a generated
   ``<AUTOGEN_BUILD_DIR>/mocs_compilation.cpp`` file,
@@ -44,8 +45,9 @@ source files at build time and invoke moc accordingly.
 
 * Additionally, header files with the same base name as a source file,
   (like ``<basename>.h``) or ``_p`` appended to the base name (like
-  ``<basename>_p.h``), are parsed for ``Q_OBJECT`` or ``Q_GADGET`` macros,
-  and if found, ``moc`` is also executed on those files.
+  ``<basename>_p.h``), are scanned for a macro out of
+  :prop_tgt:`AUTOMOC_MACRO_NAMES`, and if found, ``moc``
+  is also executed on those files.
 
 * ``AUTOMOC`` always checks multiple header alternative extensions,
   such as ``hpp``, ``hxx``, etc. when searching for headers.
@@ -69,9 +71,7 @@ automoc targets together in an IDE, e.g.  in MSVS.
 The global property :prop_gbl:`AUTOGEN_SOURCE_GROUP` can be used to group
 files generated by :prop_tgt:`AUTOMOC` together in an IDE, e.g.  in MSVS.
 
-The appearance of the strings ``Q_OBJECT`` or ``Q_GADGET`` in a source file
-determines if it needs to be ``moc`` processed. To search for additional
-strings, list them in :prop_tgt:`AUTOMOC_MACRO_NAMES`.
+Additional macro names to search for can be added to :prop_tgt:`AUTOMOC_MACRO_NAMES`.
 
 Additional ``moc`` dependency file names can be extracted from source code
 by using :prop_tgt:`AUTOMOC_DEPEND_FILTERS`.

Help/prop_tgt/AUTOMOC_MACRO_NAMES.rst

@@ -1,20 +1,23 @@
 AUTOMOC_MACRO_NAMES
 -------------------
 
-Additional macro names used by :prop_tgt:`AUTOMOC`
-to determine if a C++ file needs to be processed by ``moc``.
+A :ref:`;-list <CMake Language Lists>` list of macro names used by
+:prop_tgt:`AUTOMOC` to determine if a C++ file needs to be processed by ``moc``.
 
 This property is only used if the :prop_tgt:`AUTOMOC` property is ``ON``
 for this target.
 
-CMake searches for the strings ``Q_OBJECT`` and ``Q_GADGET`` to
-determine if a file needs to be processed by ``moc``.
-:prop_tgt:`AUTOMOC_MACRO_NAMES` allows to add additional strings to the
-search list. This is useful for cases where the ``Q_OBJECT`` or ``Q_GADGET``
-macro is hidden inside another macro.
+When running :prop_tgt:`AUTOMOC`, CMake searches for the strings listed in
+:prop_tgt:`AUTOMOC_MACRO_NAMES` in C++ source and header files.
+If any of the strings is found
+
+- as the first non space string on a new line or
+- as the first non space string after a ``{`` on a new line,
+
+then the file will be processed by ``moc``.
 
 By default :prop_tgt:`AUTOMOC_MACRO_NAMES` is initialized from
-:variable:`CMAKE_AUTOMOC_MACRO_NAMES`, which is empty by default.
+:variable:`CMAKE_AUTOMOC_MACRO_NAMES`.
 
 See the :manual:`cmake-qt(7)` manual for more information on using CMake
 with Qt.
@@ -25,4 +28,4 @@ In this case the the ``Q_OBJECT`` macro is hidden inside an other macro
 called ``CUSTOM_MACRO``. To let CMake know that source files, that contain
 ``CUSTOM_MACRO``, need to be ``moc`` processed, we call::
 
-  set_property(TARGET tgt PROPERTY AUTOMOC_MACRO_NAMES "CUSTOM_MACRO")
+  set_property(TARGET tgt APPEND PROPERTY AUTOMOC_MACRO_NAMES "CUSTOM_MACRO")

Help/variable/CMAKE_AUTOMOC_MACRO_NAMES.rst

@@ -1,14 +1,15 @@
 CMAKE_AUTOMOC_MACRO_NAMES
 ----------------------------
 
-Additional macro names used by :variable:`CMAKE_AUTOMOC`
-to determine if a C++ file needs to be processed by ``moc``.
+A :ref:`;-list <CMake Language Lists>` list of macro names used by
+:variable:`CMAKE_AUTOMOC` to determine if a C++ file needs to be
+processed by ``moc``.
 
 This variable is used to initialize the :prop_tgt:`AUTOMOC_MACRO_NAMES`
 property on all the targets. See that target property for additional
 information.
 
-By default it is empty.
+The default value is ``Q_OBJECT;Q_GADGET;Q_NAMESPACE``.
 
 Example
 -------
@@ -16,4 +17,4 @@ Let CMake know that source files that contain ``CUSTOM_MACRO`` must be ``moc``
 processed as well::
 
   set(CMAKE_AUTOMOC ON)
-  set(CMAKE_AUTOMOC_MACRO_NAMES "CUSTOM_MACRO")
+  list(APPEND CMAKE_AUTOMOC_MACRO_NAMES "CUSTOM_MACRO")