"""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 (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The SCons Foundation
#
# 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__ = "src/engine/SCons/Tool/qt.py 4720 2010/03/24 03:14:11 jars"
import os.path
import re
import SCons.Action
import SCons.Builder
import SCons.Defaults
import SCons.Scanner
import SCons.Tool
import SCons.Util
class ToolQtWarning(SCons.Warnings.Warning):
pass
class GeneratedMocFileNotIncluded(ToolQtWarning):
pass
class QtdirNotFound(ToolQtWarning):
pass
SCons.Warnings.enableWarningClass(ToolQtWarning)
header_extensions = [".h", ".hxx", ".hpp", ".hh"]
if SCons.Util.case_sensitive_suffixes('.h', '.H'):
header_extensions.append('.H')
cplusplus = __import__('c++', globals(), locals(), [])
cxx_suffixes = cplusplus.CXXSuffixes
def checkMocIncluded(target, source, env):
moc = target[0]
cpp = source[0]
# looks like cpp.includes is cleared before the build stage :-(
# not really sure about the path transformations (moc.cwd? cpp.cwd?) :-/
path = SCons.Defaults.CScan.path(env, moc.cwd)
includes = SCons.Defaults.CScan(cpp, env, path)
if not moc in includes:
SCons.Warnings.warn(
GeneratedMocFileNotIncluded,
"Generated moc file '%s' is not included by '%s'" %
(str(moc), str(cpp)))
def find_file(filename, paths, node_factory):
for dir in paths:
node = node_factory(filename, dir)
if node.rexists():
return node
return None
class _Automoc:
"""
Callable class, which works as an emitter for Programs, SharedLibraries and
StaticLibraries.
"""
def __init__(self, objBuilderName):
self.objBuilderName = objBuilderName
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.
"""
try:
if int(env.subst('$QT_AUTOSCAN')) == 0:
return target, source
except ValueError:
pass
try:
debug = int(env.subst('$QT_DEBUG'))
except ValueError:
debug = 0
# some shortcuts used in the scanner
splitext = SCons.Util.splitext
objBuilder = getattr(env, self.objBuilderName)
# some regular expressions:
# Q_OBJECT detection
q_object_search = re.compile(r'[^A-Za-z0-9]Q_OBJECT[^A-Za-z0-9]')
# cxx and c comment 'eater'
#comment = re.compile(r'(//.*)|(/\*(([^*])|(\*[^/]))*\*/)')
# CW: something must be wrong with the regexp. See also bug #998222
# CURRENTLY THERE IS NO TEST CASE FOR THAT
# The following is kind of hacky to get builders working properly (FIXME)
objBuilderEnv = objBuilder.env
objBuilder.env = env
mocBuilderEnv = env.Moc.env
env.Moc.env = env
# make a deep copy for the result; MocH objects will be appended
out_sources = source[:]
for obj in source:
if not obj.has_builder():
# binary obj file provided
if debug:
print "scons: qt: '%s' seems to be a binary. Discarded." % str(obj)
continue
cpp = obj.sources[0]
if not splitext(str(cpp))[1] in cxx_suffixes:
if debug:
print "scons: qt: '%s' is no cxx file. Discarded." % str(cpp)
# c or fortran source
continue
#cpp_contents = comment.sub('', cpp.get_text_contents())
cpp_contents = cpp.get_text_contents()
h=None
for h_ext in header_extensions:
# try to find the header file in the corresponding source
# directory
hname = splitext(cpp.name)[0] + h_ext
h = find_file(hname, (cpp.get_dir(),), env.File)
if h:
if debug:
print "scons: qt: Scanning '%s' (header of '%s')" % (str(h), str(cpp))
#h_contents = comment.sub('', h.get_text_contents())
h_contents = h.get_text_contents()
break
if not h and debug:
print "scons: qt: no header for '%s'." % (str(cpp))
if h and q_object_search.search(h_contents):
# h file with the Q_OBJECT macro found -> add moc_cpp
moc_cpp = env.Moc(h)
moc_o = objBuilder(moc_cpp)
out_sources.append(moc_o)
#moc_cpp.target_scanner = SCons.Defaults.CScan
if debug:
print "scons: qt: found Q_OBJECT macro in '%s', moc'ing to '%s'" % (str(h), str(moc_cpp))
if cpp and q_object_search.search(cpp_contents):
# cpp file with Q_OBJECT macro found -> add moc
# (to be included in cpp)
moc = env.Moc(cpp)
env.Ignore(moc, moc)
if debug:
print "scons: qt: found Q_OBJECT macro in '%s', moc'ing to '%s'" % (str(cpp), str(moc))
#moc.source_scanner = SCons.Defaults.CScan
# restore the original env attributes (FIXME)
objBuilder.env = objBuilderEnv
env.Moc.env = mocBuilderEnv
return (target, out_sources)
AutomocShared = _Automoc('SharedObject')
AutomocStatic = _Automoc('StaticObject')
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.WhereIs('moc')
if moc:
QTDIR = os.path.dirname(os.path.dirname(moc))
SCons.Warnings.warn(
QtdirNotFound,
"Could not detect qt, using moc executable as a hint (QTDIR=%s)" % QTDIR)
else:
QTDIR = None
SCons.Warnings.warn(
QtdirNotFound,
"Could not detect qt, using empty QTDIR")
return QTDIR
def uicEmitter(target, source, env):
adjustixes = SCons.Util.adjustixes
bs = SCons.Util.splitext(str(source[0].name))[0]
bs = os.path.join(str(target[0].get_dir()),bs)
# first target (header) is automatically added by builder
if len(target) < 2:
# second target is implementation
target.append(adjustixes(bs,
env.subst('$QT_UICIMPLPREFIX'),
env.subst('$QT_UICIMPLSUFFIX')))
if len(target) < 3:
# third target is moc file
target.append(adjustixes(bs,
env.subst('$QT_MOCHPREFIX'),
env.subst('$QT_MOCHSUFFIX')))
return target, source
def uicScannerFunc(node, env, path):
lookout = []
lookout.extend(env['CPPPATH'])
lookout.append(str(node.rfile().dir))
includes = re.findall("<include.*?>(.*?)</include>", node.get_text_contents())
result = []
for incFile in includes:
dep = env.FindFile(incFile,lookout)
if dep:
result.append(dep)
return result
uicScanner = SCons.Scanner.Base(uicScannerFunc,
name = "UicScanner",
node_class = SCons.Node.FS.File,
node_factory = SCons.Node.FS.File,
recursive = 0)
def generate(env):
"""Add Builders and construction variables for qt to an Environment."""
CLVar = SCons.Util.CLVar
Action = SCons.Action.Action
Builder = SCons.Builder.Builder
env.SetDefault(QTDIR = _detect(env),
QT_BINPATH = os.path.join('$QTDIR', 'bin'),
QT_CPPPATH = os.path.join('$QTDIR', 'include'),
QT_LIBPATH = os.path.join('$QTDIR', 'lib'),
QT_MOC = os.path.join('$QT_BINPATH','moc'),
QT_UIC = os.path.join('$QT_BINPATH','uic'),
QT_LIB = 'qt', # may be set to qt-mt
QT_AUTOSCAN = 1, # scan for moc'able sources
# Some QT specific flags. I don't expect someone wants to
# manipulate those ...
QT_UICIMPLFLAGS = CLVar(''),
QT_UICDECLFLAGS = CLVar(''),
QT_MOCFROMHFLAGS = CLVar(''),
QT_MOCFROMCXXFLAGS = CLVar('-i'),
# suffixes/prefixes for the headers / sources to generate
QT_UICDECLPREFIX = '',
QT_UICDECLSUFFIX = '.h',
QT_UICIMPLPREFIX = 'uic_',
QT_UICIMPLSUFFIX = '$CXXFILESUFFIX',
QT_MOCHPREFIX = 'moc_',
QT_MOCHSUFFIX = '$CXXFILESUFFIX',
QT_MOCCXXPREFIX = '',
QT_MOCCXXSUFFIX = '.moc',
QT_UISUFFIX = '.ui',
# Commands for the qt support ...
# command to generate header, implementation and moc-file
# from a .ui file
QT_UICCOM = [
CLVar('$QT_UIC $QT_UICDECLFLAGS -o ${TARGETS[0]} $SOURCE'),
CLVar('$QT_UIC $QT_UICIMPLFLAGS -impl ${TARGETS[0].file} '
'-o ${TARGETS[1]} $SOURCE'),
CLVar('$QT_MOC $QT_MOCFROMHFLAGS -o ${TARGETS[2]} ${TARGETS[0]}')],
# command to generate meta object information for a class
# declarated in a header
QT_MOCFROMHCOM = (
'$QT_MOC $QT_MOCFROMHFLAGS -o ${TARGETS[0]} $SOURCE'),
# command to generate meta object information for a class
# declarated in a cpp file
QT_MOCFROMCXXCOM = [
CLVar('$QT_MOC $QT_MOCFROMCXXFLAGS -o ${TARGETS[0]} $SOURCE'),
Action(checkMocIncluded,None)])
# ... and the corresponding builders
uicBld = Builder(action=SCons.Action.Action('$QT_UICCOM', '$QT_UICCOMSTR'),
emitter=uicEmitter,
src_suffix='$QT_UISUFFIX',
suffix='$QT_UICDECLSUFFIX',
prefix='$QT_UICDECLPREFIX',
source_scanner=uicScanner)
mocBld = Builder(action={}, prefix={}, suffix={})
for h in header_extensions:
act = SCons.Action.Action('$QT_MOCFROMHCOM', '$QT_MOCFROMHCOMSTR')
mocBld.add_action(h, act)
mocBld.prefix[h] = '$QT_MOCHPREFIX'
mocBld.suffix[h] = '$QT_MOCHSUFFIX'
for cxx in cxx_suffixes:
act = SCons.Action.Action('$QT_MOCFROMCXXCOM', '$QT_MOCFROMCXXCOMSTR')
mocBld.add_action(cxx, act)
mocBld.prefix[cxx] = '$QT_MOCCXXPREFIX'
mocBld.suffix[cxx] = '$QT_MOCCXXSUFFIX'
# register the builders
env['BUILDERS']['Uic'] = uicBld
env['BUILDERS']['Moc'] = mocBld
static_obj, shared_obj = SCons.Tool.createObjBuilders(env)
static_obj.add_src_builder('Uic')
shared_obj.add_src_builder('Uic')
# We use the emitters of Program / StaticLibrary / SharedLibrary
# to scan for moc'able files
# 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.AppendUnique(PROGEMITTER =[AutomocStatic],
SHLIBEMITTER=[AutomocShared],
LIBEMITTER =[AutomocStatic],
# Of course, we need to link against the qt libraries
CPPPATH=["$QT_CPPPATH"],
LIBPATH=["$QT_LIBPATH"],
LIBS=['$QT_LIB'])
def exists(env):
return _detect(env)
# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4:
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