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Diffstat (limited to 'engine/SCons/Tool/qt.py')
| -rw-r--r-- | engine/SCons/Tool/qt.py | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/engine/SCons/Tool/qt.py b/engine/SCons/Tool/qt.py new file mode 100644 index 0000000..004fce7 --- /dev/null +++ b/engine/SCons/Tool/qt.py @@ -0,0 +1,336 @@ + +"""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 - 2014 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 2014/09/27 12:51:43 garyo" + +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(object): + """ + 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: |