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"""SCons.Tool.qt
Tool-specific initialization for qt.
There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.
"""
#
# __COPYRIGHT__
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
import os.path
import re
import SCons.Defaults
import SCons.Tool
import SCons.Util
header_extensions = [".h", ".hxx", ".hpp", ".hh"]
if SCons.Util.case_sensitive_suffixes('.h', '.H'):
header_extensions.append('.H')
class _Automoc:
"""
Callable class, which works as an emitter for Programs, SharedLibraries and
StaticLibraries.
"""
def __init__(self, objBuilderName,uicDeclBuild,mocFromHBld,mocFromCppBld):
self.objBuilderName = objBuilderName
self.uicDeclBld = uicDeclBuild
self.mocFromHBld = mocFromHBld
self.mocFromCppBld = mocFromCppBld
def __call__(self, target, source, env):
"""
Smart autoscan function. Gets the list of objects for the Program
or Lib. Adds objects and builders for the special qt files.
"""
FS = SCons.Node.FS.default_fs
splitext = SCons.Util.splitext
# To make the following work, we assume that we stay in the
# root directory
old_os_cwd = os.getcwd()
old_fs_cwd = FS.getcwd()
FS.chdir(FS.Dir('#'), change_os_dir=1)
# a regular expression for the Q_OBJECT macro
# currently fails, when Q_OBJECT is in comment (e.g. /* Q_OBJECT */)
q_object_search = re.compile(r'\sQ_OBJECT[\s;]')
# out_sources contains at least all sources for the Library or Prog
out_sources = source[:]
for s in source:
prefix, suffix = splitext(str(s))
# Nodes for header (h) / moc file (moc_cpp) / cpp file (cpp)
# and ui.h file (ui_h)
cpp = s.sources[0]
ui = None
if cpp.sources != None and len(cpp.sources) > 0:
src_src_suffix = splitext(str(cpp.sources[0]))[1]
if src_src_suffix == env.subst('$QT_UISUFFIX'):
ui = cpp.sources[0]
src_prefix, src_suffix = splitext(str(cpp.srcnode()))
h=None
for h_ext in header_extensions:
if os.path.exists(src_prefix + h_ext):
h = FS.File(src_prefix + h_ext)
if ui:
# file built from .ui file -> build also header from .ui
h = self.uicDeclBld(env, prefix, ui)
env.Depends(cpp, h)
ui_h_suff = env.subst('$QT_UIHSUFFIX')
if os.path.exists(src_prefix + ui_h_suff):
# if a .ui.h file exists, we need to specify the dependecy ...
ui_h = FS.File(src_prefix + ui_h_suff)
env.Depends(cpp, ui_h)
if (h and q_object_search.search(h.get_contents())) or ui:
# h file with the Q_OBJECT macro found -> add moc_cpp
d,base = os.path.split(prefix)
src_ext = splitext(str(h))[1]
moc_cpp = FS.File(os.path.join(d,
env['QT_MOCNAMEGENERATOR'](base, src_ext, env)))
objBuilder = getattr(env, self.objBuilderName)
if env.get('QT_AUTOBUILD_MOC_SOURCES'):
moc_o = objBuilder(source=moc_cpp)
out_sources.append(moc_o)
objBuilder(moc_o, moc_cpp)
self.mocFromHBld(env, moc_cpp, h)
#moc_cpp.target_scanner = SCons.Defaults.CScan
if cpp and q_object_search.search(cpp.get_contents()):
# cpp file with Q_OBJECT macro found -> add moc
# (to be included in cpp)
d,base = os.path.split(prefix)
src_ext = splitext(str(cpp))[1]
moc = FS.File(os.path.join(d,
env['QT_MOCNAMEGENERATOR'](base, src_ext, env)))
self.mocFromCppBld(env, moc, cpp)
env.Ignore(moc, moc)
#moc.source_scanner = SCons.Defaults.CScan
os.chdir(old_os_cwd)
FS.chdir(old_fs_cwd)
if env.get('QT_AUTOBUILD_MOC_SOURCES'):
return (target, out_sources)
else:
return (target, source)
def _detect(env):
"""Not really safe, but fast method to detect the QT library"""
QTDIR = None
if not QTDIR:
QTDIR = env.get('QTDIR',None)
if not QTDIR:
QTDIR = os.environ.get('QTDIR',None)
if not QTDIR:
moc = env.Detect('moc')
if moc:
QTDIR = os.path.dirname(os.path.dirname(moc))
else:
QTDIR = None
return QTDIR
def generate(env):
"""Add Builders and construction variables for qt to an Environment."""
env['QTDIR'] = _detect(env)
env['QT_MOC'] = os.path.join('$QTDIR','bin','moc')
env['QT_UIC'] = os.path.join('$QTDIR','bin','uic')
env['QT_LIB'] = 'qt'
# Should moc-generated sources be automatically compiled?
env['QT_AUTOBUILD_MOC_SOURCES'] = 1
# Some QT specific flags. I don't expect someone wants to
# manipulate those ...
env['QT_UICIMPLFLAGS'] = SCons.Util.CLVar('')
env['QT_UICDECLFLAGS'] = SCons.Util.CLVar('')
env['QT_MOCFROMHFLAGS'] = SCons.Util.CLVar('')
env['QT_MOCFROMCXXFLAGS'] = SCons.Util.CLVar('-i')
# Suffixes for the headers / sources to generate
env['QT_HSUFFIX'] = '.h'
env['QT_UISUFFIX'] = '.ui'
env['QT_UIHSUFFIX'] = '.ui.h'
env['QT_MOCNAMEGENERATOR'] = \
lambda x, src_suffix, env: 'moc_' + x + env.get('CXXFILESUFFIX','.cc')
# Commands for the qt support ...
# command to generate implementation (cpp) file from a .ui file
env['QT_UICIMPLCOM'] = ('$QT_UIC $QT_UICIMPLFLAGS -impl '
'${TARGETS[0].filebase}$QT_HSUFFIX '
'-o $TARGET $SOURCES')
# command to generate declaration (h) file from a .ui file
env['QT_UICDECLCOM'] = ('$QT_UIC $QT_UICDECLFLAGS '
'-o ${TARGETS[0].base}$QT_HSUFFIX $SOURCES')
# command to generate meta object information for a class declarated
# in a header
env['QT_MOCFROMHCOM'] = '$QT_MOC $QT_MOCFROMHFLAGS -o $TARGET $SOURCE'
# command to generate meta object information for a class declatazed
# in a cpp file
env['QT_MOCFROMCXXCOM'] = '$QT_MOC $QT_MOCFROMCXXFLAGS -o $TARGET $SOURCE'
# ... and the corresponding builders
uicDeclBld = SCons.Builder.Builder(action='$QT_UICDECLCOM',
src_suffix='$QT_UISUFFIX',
suffix='$QT_HSUFFIX')
mocFromHBld = SCons.Builder.Builder(action='$QT_MOCFROMHCOM',
src_suffix='$QT_HSUFFIX',
suffix='$QT_MOCSUFFIX')
mocFromCppBld = SCons.Builder.Builder(action='$QT_MOCFROMCXXCOM',
src_suffix='$QT_CXXSUFFIX',
suffix='$QT_MOCSUFFIX')
# we use CXXFile to generate .cpp files from .ui files
c_file, cxx_file = SCons.Tool.createCFileBuilders(env)
cxx_file.add_action('$QT_UISUFFIX', '$QT_UICIMPLCOM')
# We use the emitters of Program / StaticLibrary / SharedLibrary
# to produce almost all builders except .cpp from .ui
# First, make sure the Environment has Object builders.
SCons.Tool.createObjBuilders(env)
# We can't refer to the builders directly, we have to fetch them
# as Environment attributes because that sets them up to be called
# correctly later by our emitter.
env.Append(PROGEMITTER = [_Automoc('StaticObject',
uicDeclBld,mocFromHBld,mocFromCppBld)],
SHLIBEMITTER = [_Automoc('SharedObject',
uicDeclBld,mocFromHBld,mocFromCppBld)],
LIBEMITTER = [_Automoc('StaticObject',
uicDeclBld,mocFromHBld,mocFromCppBld)])
# Of course, we need to link against the qt libraries
env.AppendUnique(CPPPATH=[os.path.join('$QTDIR', 'include')])
env.AppendUnique(LIBPATH=[os.path.join('$QTDIR', 'lib')])
env.AppendUnique(LIBS=['$QT_LIB'])
def exists(env):
return _detect(env)
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