WIP: added lib module to qmake-based python module build

This works:

  import klayout.db
  import klayout.lib
  print(klayout.db.Library.library_names())   # says ["Basic"]

Also works:

  from klayout import *

Does not work:

  # import klayout.lib needs to be done before the libraries
  # are used initially
  import klayout.db
  print(klayout.db.Library.library_names())   # says []
  import klayout.lib
  print(klayout.db.Library.library_names())   # says []

setup.py

@@ -399,6 +399,22 @@ _db = Library(config.root + '._db',
               sources=list(_db_sources))
 config.add_extension(_db)
 
+# ------------------------------------------------------------------
+# _lib dependency library
+
+_lib_path = os.path.join("src", "lib", "lib")
+_lib_sources = set(glob.glob(os.path.join(_lib_path, "*.cc")))
+
+_lib = Library(config.root + '._lib',
+              define_macros=config.macros() + [('MAKE_LIB_LIBRARY', 1)],
+              include_dirs=[_tl_path, _db_path, _lib_path],
+              extra_objects=[config.path_of('_tl', _tl_path), config.path_of('_db', _db_path)],
+              language='c++',
+              extra_link_args=config.link_args('_lib'),
+              extra_compile_args=config.compile_args('_lib'),
+              sources=list(_lib_sources))
+config.add_extension(_lib)
+
 # ------------------------------------------------------------------
 # _rdb dependency library
 
@@ -468,6 +484,19 @@ db = Extension(config.root + '.dbcore',
                extra_link_args=config.link_args('dbcore'),
                sources=list(db_sources))
 
+# ------------------------------------------------------------------
+# lib extension library
+
+lib_path = os.path.join("src", "pymod", "lib")
+lib_sources = set(glob.glob(os.path.join(lib_path, "*.cc")))
+
+lib = Extension(config.root + '.libcore',
+               define_macros=config.macros(),
+               include_dirs=[_lib_path, _tl_path, _db_path],
+               extra_objects=[config.path_of('_lib', _lib_path), config.path_of('_tl', _tl_path), config.path_of('_db', _db_path)],
+               extra_link_args=config.link_args('libcore'),
+               sources=list(lib_sources))
+
 # ------------------------------------------------------------------
 # rdb extension library
 
@@ -507,4 +536,4 @@ if __name__ == '__main__':
           url='https://github.com/klayoutmatthias/klayout',
           packages=find_packages('src/pymod/distutils_src'),
           package_dir={'': 'src/pymod/distutils_src'},  # https://github.com/pypa/setuptools/issues/230
-          ext_modules=[_tl, _gsi, _pya, _db, _rdb] + db_plugins + [tl, db, rdb])
+          ext_modules=[_tl, _gsi, _pya, _db, _lib, _rdb] + db_plugins + [tl, db, lib, rdb])

src/pymod/__init__.py.noqt

@@ -1,5 +1,5 @@
 
 # klayout library definition file
 
-__all__ = [ "tl", "db", "lay", "rdb" ]
+__all__ = [ "tl", "db", "lib", "lay", "rdb" ]
 

src/pymod/__init__.py.qt4

@@ -1,5 +1,5 @@
 
 # klayout library definition file
 
-__all__ = [ "tl", "db", "rdb", "QtCore", "QtGui", "QtXml", "QtSql", "QtNetwork", "QtDesigner", "lay" ]
+__all__ = [ "tl", "db", "lib", "rdb", "QtCore", "QtGui", "QtXml", "QtSql", "QtNetwork", "QtDesigner", "lay" ]
 

src/pymod/__init__.py.qt5

@@ -1,7 +1,7 @@
 
 # klayout library definition file
 
-__all__ = [ "tl", "db", "rdb", 
+__all__ = [ "tl", "db", "lib", "rdb", 
             "QtCore", "QtGui", "QtNetwork", "QtSql", "QtWidgets", "QtDesigner", 
             "QtMultimedia", "QtPrintSupport", "QtSvg", "QtXmlPatterns", "QtXml", 
             "lay" ]

src/pymod/__init__.py.qtless

@@ -1,4 +1,4 @@
 # klayout library definition file
 
-__all__ = [ "tl", "db", "rdb" ]
+__all__ = [ "tl", "db", "lib", "rdb" ]
 

src/pymod/distutils_src/klayout/lib/__init__.py

@@ -0,0 +1,4 @@
+import klayout.libcore
+from klayout.libcore import *
+
+__all__ = klayout.libcore.__all__

src/pymod/distutils_src/pya/__init__.py

@@ -3,5 +3,6 @@
 # TODO: We need a specification document explaining what should go into pya
 
 from klayout.db import *  # noqa
+from klayout.lib import *  # noqa
 from klayout.tl import *  # noqa
 from klayout.rdb import *  # noqa

src/pymod/lib/lib.pro

@@ -0,0 +1,13 @@
+
+TARGET = libcore
+REALMODULE = lib
+
+include($$PWD/../pymod.pri)
+
+SOURCES = \
+  libMain.cc \
+
+HEADERS += \
+
+LIBS += -lklayout_lib
+

src/pymod/lib/libMain.cc

@@ -0,0 +1,33 @@
+
+/*
+
+  KLayout Layout Viewer
+  Copyright (C) 2006-2019 Matthias Koefferlein
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+*/
+
+#include "../pymodHelper.h"
+
+//  to force linking of the lib module
+#include "../../lib/lib/libForceLink.h"
+
+static PyObject *lib_module_init (const char *pymod_name, const char *mod_name, const char *mod_description)
+{
+  return module_init (pymod_name, mod_name, mod_description);
+}
+
+DEFINE_PYMOD_WITH_INIT(libcore, "lib", "KLayout core module 'lib'", lib_module_init)

src/pymod/pymod.pro

@@ -4,6 +4,7 @@ SUBDIRS = \
   db \
   tl \
   rdb \
+  lib \
 
 !equals(HAVE_QT, "0") {