File: qt4.py

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#! /usr/bin/env python
# encoding: utf-8
# WARNING! All changes made to this file will be lost!

import sys
if sys.hexversion < 0x020400f0: from sets import Set as set
try:
	from xml.sax import make_parser
	from xml.sax.handler import ContentHandler
except ImportError:
	has_xml=False
	ContentHandler=object
else:
	has_xml=True
import os,sys
from waflib.Tools import c_preproc,cxx
from waflib import TaskGen,Task,Utils,Runner,Options,Node,Errors
from waflib.TaskGen import feature,after_method,extension
from waflib.Logs import error
MOC_H=['.h','.hpp','.hxx','.hh']
EXT_RCC=['.qrc']
EXT_UI=['.ui']
EXT_QT4=['.cpp','.cc','.cxx','.C']
class qxx(cxx.cxx):
	def __init__(self,*k,**kw):
		Task.Task.__init__(self,*k,**kw)
		self.moc_done=0
	def scan(self):
		(nodes,names)=c_preproc.scan(self)
		for x in nodes:
			if x.name.endswith('.moc'):
				nodes.remove(x)
				names.append(x.path_from(self.inputs[0].parent.get_bld()))
		return(nodes,names)
	def runnable_status(self):
		if self.moc_done:
			return Task.Task.runnable_status(self)
		else:
			for t in self.run_after:
				if not t.hasrun:
					return Task.ASK_LATER
			self.add_moc_tasks()
			return Task.Task.runnable_status(self)
	def add_moc_tasks(self):
		node=self.inputs[0]
		bld=self.generator.bld
		try:
			self.signature()
		except KeyError:
			pass
		else:
			delattr(self,'cache_sig')
		moctasks=[]
		mocfiles=[]
		try:
			tmp_lst=bld.raw_deps[self.uid()]
			bld.raw_deps[self.uid()]=[]
		except KeyError:
			tmp_lst=[]
		for d in tmp_lst:
			if not d.endswith('.moc'):
				continue
			if d in mocfiles:
				error("paranoia owns")
				continue
			mocfiles.append(d)
			h_node=None
			try:ext=Options.options.qt_header_ext.split()
			except AttributeError:pass
			if not ext:ext=MOC_H
			base2=d[:-4]
			for x in[node.parent]+self.generator.includes_nodes:
				for e in ext:
					h_node=x.find_node(base2+e)
					if h_node:
						break
				else:
					continue
				break
			else:
				raise Errors.WafError('no header found for %r which is a moc file'%d)
			m_node=h_node.change_ext('.moc')
			bld.node_deps[(self.inputs[0].parent.abspath(),m_node.name)]=h_node
			task=Task.classes['moc'](env=self.env,generator=self.generator)
			task.set_inputs(h_node)
			task.set_outputs(m_node)
			gen=bld.producer
			gen.outstanding.insert(0,task)
			gen.total+=1
			moctasks.append(task)
		tmp_lst=bld.raw_deps[self.uid()]=mocfiles
		lst=bld.node_deps.get(self.uid(),())
		for d in lst:
			name=d.name
			if name.endswith('.moc'):
				task=Task.classes['moc'](env=self.env,generator=self.generator)
				task.set_inputs(bld.node_deps[(self.inputs[0].parent.abspath(),name)])
				task.set_outputs(d)
				gen=bld.producer
				gen.outstanding.insert(0,task)
				gen.total+=1
				moctasks.append(task)
		self.run_after.update(set(moctasks))
		self.moc_done=1
	run=Task.classes['cxx'].__dict__['run']
class trans_update(Task.Task):
	run_str='${QT_LUPDATE} ${SRC} -ts ${TGT}'
	color='BLUE'
Task.update_outputs(trans_update)
class XMLHandler(ContentHandler):
	def __init__(self):
		self.buf=[]
		self.files=[]
	def startElement(self,name,attrs):
		if name=='file':
			self.buf=[]
	def endElement(self,name):
		if name=='file':
			self.files.append(str(''.join(self.buf)))
	def characters(self,cars):
		self.buf.append(cars)
def create_rcc_task(self,node):
	rcnode=node.change_ext('_rc.cpp')
	rcctask=self.create_task('rcc',node,rcnode)
	cpptask=self.create_task('cxx',rcnode,rcnode.change_ext('.o'))
	try:
		self.compiled_tasks.append(cpptask)
	except AttributeError:
		self.compiled_tasks=[cpptask]
	return cpptask
def create_uic_task(self,node):
	uictask=self.create_task('ui4',node)
	uictask.outputs=[self.path.find_or_declare(self.env['ui_PATTERN']%node.name[:-3])]
def add_lang(self,node):
	self.lang=self.to_list(getattr(self,'lang',[]))+[node]
def apply_qt4(self):
	if getattr(self,'lang',None):
		qmtasks=[]
		for x in self.to_list(self.lang):
			if isinstance(x,str):
				x=self.path.find_resource(x+'.ts')
			qmtasks.append(self.create_task('ts2qm',x,x.change_ext('.qm')))
		if getattr(self,'update',None)and Options.options.trans_qt4:
			cxxnodes=[a.inputs[0]for a in self.compiled_tasks]
			for x in qmtasks:
				self.create_task('trans_update',cxxnodes,x.inputs)
		if getattr(self,'langname',None):
			qmnodes=[x.outputs[0]for x in qmtasks]
			rcnode=self.langname
			if isinstance(rcnode,str):
				rcnode=self.path.find_or_declare(rcnode+'.qrc')
			t=self.create_task('qm2rcc',qmnodes,rcnode)
			k=create_rcc_task(self,t.outputs[0])
			self.link_task.inputs.append(k.outputs[0])
	lst=[]
	for flag in self.to_list(self.env['CXXFLAGS']):
		if len(flag)<2:continue
		f=flag[0:2]
		if f in['-D','-I','/D','/I']:
			lst.append(flag)
	self.env['MOC_FLAGS']=lst
def cxx_hook(self,node):
	return self.create_compiled_task('qxx',node)
class rcc(Task.Task):
	color='BLUE'
	run_str='${QT_RCC} -name ${SRC[0].name} ${SRC[0].abspath()} ${RCC_ST} -o ${TGT}'
	ext_out=['.h']
	def scan(self):
		node=self.inputs[0]
		parser=make_parser()
		curHandler=XMLHandler()
		parser.setContentHandler(curHandler)
		fi=open(self.inputs[0].abspath())
		parser.parse(fi)
		fi.close()
		nodes=[]
		names=[]
		root=self.inputs[0].parent
		for x in curHandler.files:
			nd=root.find_resource(x)
			if nd:nodes.append(nd)
			else:names.append(x)
		return(nodes,names)
class moc(Task.Task):
	color='BLUE'
	run_str='${QT_MOC} ${MOC_FLAGS} ${SRC} ${MOC_ST} ${TGT}'
class ui4(Task.Task):
	color='BLUE'
	run_str='${QT_UIC} ${SRC} -o ${TGT}'
	ext_out=['.h']
class ts2qm(Task.Task):
	color='BLUE'
	run_str='${QT_LRELEASE} ${QT_LRELEASE_FLAGS} ${SRC} -qm ${TGT}'
class qm2rcc(Task.Task):
	color='BLUE'
	after='ts2qm'
	def run(self):
		txt='\n'.join(['<file>%s</file>'%k.path_from(self.outputs[0].parent)for k in self.inputs])
		code='<!DOCTYPE RCC><RCC version="1.0">\n<qresource>\n%s\n</qresource>\n</RCC>'%txt
		self.outputs[0].write(code)
def configure(self):
	env=self.env
	opt=Options.options
	qtdir=getattr(opt,'qtdir','')
	qtbin=getattr(opt,'qtbin','')
	qtlibs=getattr(opt,'qtlibs','')
	useframework=getattr(opt,'use_qt4_osxframework',True)
	paths=[]
	if qtdir:
		qtbin=os.path.join(qtdir,'bin')
	if not qtdir:
		qtdir=self.environ.get('QT4_ROOT','')
		qtbin=os.path.join(qtdir,'bin')
	if qtbin:
		paths=[qtbin]
	if not qtdir:
		paths=os.environ.get('PATH','').split(os.pathsep)
		paths.append('/usr/share/qt4/bin/')
		try:
			lst=Utils.listdir('/usr/local/Trolltech/')
		except OSError:
			pass
		else:
			if lst:
				lst.sort()
				lst.reverse()
				qtdir='/usr/local/Trolltech/%s/'%lst[0]
				qtbin=os.path.join(qtdir,'bin')
				paths.append(qtbin)
	cand=None
	prev_ver=['4','0','0']
	for qmk in['qmake-qt4','qmake4','qmake']:
		try:
			qmake=self.find_program(qmk,path_list=paths)
		except self.errors.ConfigurationError:
			pass
		else:
			try:
				version=self.cmd_and_log([qmake,'-query','QT_VERSION']).strip()
			except self.errors.ConfigurationError:
				pass
			else:
				if version:
					new_ver=version.split('.')
					if new_ver>prev_ver:
						cand=qmake
						prev_ver=new_ver
	if cand:
		qmake=cand
	else:
		self.fatal('could not find qmake for qt4')
	self.env.QMAKE=qmake
	qtincludes=self.cmd_and_log([qmake,'-query','QT_INSTALL_HEADERS']).strip()
	qtdir=self.cmd_and_log([qmake,'-query','QT_INSTALL_PREFIX']).strip()+os.sep
	qtbin=self.cmd_and_log([qmake,'-query','QT_INSTALL_BINS']).strip()+os.sep
	if not qtlibs:
		try:
			qtlibs=self.cmd_and_log([qmake,'-query','QT_INSTALL_LIBS']).strip()
		except Errors.WafError:
			qtlibs=os.path.join(qtdir,'lib')
	def find_bin(lst,var):
		for f in lst:
			try:
				ret=self.find_program(f,path_list=paths)
			except self.errors.ConfigurationError:
				pass
			else:
				env[var]=ret
				break
	find_bin(['uic-qt3','uic3'],'QT_UIC3')
	find_bin(['uic-qt4','uic'],'QT_UIC')
	if not env['QT_UIC']:
		self.fatal('cannot find the uic compiler for qt4')
	try:
		version=self.cmd_and_log(env['QT_UIC']+" -version 2>&1").strip()
	except self.errors.ConfigurationError:
		self.fatal('your uic compiler is for qt3, add uic for qt4 to your path')
	version=version.replace('Qt User Interface Compiler ','')
	version=version.replace('User Interface Compiler for Qt','')
	if version.find(' 3.')!=-1:
		self.msg('Checking for uic version','(%s: too old)'%version,False)
		self.fatal('uic is too old')
	self.msg('Checking for uic version','(%s)'%version)
	find_bin(['moc-qt4','moc'],'QT_MOC')
	find_bin(['rcc'],'QT_RCC')
	find_bin(['lrelease-qt4','lrelease'],'QT_LRELEASE')
	find_bin(['lupdate-qt4','lupdate'],'QT_LUPDATE')
	env['UIC3_ST']='%s -o %s'
	env['UIC_ST']='%s -o %s'
	env['MOC_ST']='-o'
	env['ui_PATTERN']='ui_%s.h'
	env['QT_LRELEASE_FLAGS']=['-silent']
	vars="QtCore QtGui QtUiTools QtNetwork QtOpenGL QtSql QtSvg QtTest QtXml QtWebKit Qt3Support".split()
	vars_debug=[a+'_debug'for a in vars]
	if not'PKG_CONFIG_PATH'in os.environ:
		os.environ['PKG_CONFIG_PATH']='%s:%s/pkgconfig:/usr/lib/qt4/lib/pkgconfig:/opt/qt4/lib/pkgconfig:/usr/lib/qt4/lib:/opt/qt4/lib'%(qtlibs,qtlibs)
	for i in vars_debug+vars:
		try:
			self.check_cfg(package=i,args='--cflags --libs')
		except self.errors.ConfigurationError:
			pass
	def process_lib(vars_,coreval):
		for d in vars_:
			var=d.upper()
			if var=='QTCORE':
				continue
			value=env['LIBPATH_'+var]
			if value:
				core=env[coreval]
				accu=[]
				for lib in value:
					if lib in core:
						continue
					accu.append(lib)
				env['LIBPATH_'+var]=accu
	process_lib(vars,'LIBPATH_QTCORE')
	process_lib(vars_debug,'LIBPATH_QTCORE_DEBUG')
	if Options.options.want_rpath:
		def process_rpath(vars_,coreval):
			for d in vars_:
				var=d.upper()
				value=env['LIBPATH_'+var]
				if value:
					core=env[coreval]
					accu=[]
					for lib in value:
						if var!='QTCORE':
							if lib in core:
								continue
						accu.append('-Wl,--rpath='+lib)
					env['RPATH_'+var]=accu
		process_rpath(vars,'LIBPATH_QTCORE')
		process_rpath(vars_debug,'LIBPATH_QTCORE_DEBUG')
def options(opt):
	opt.add_option('--want-rpath',action='store_true',default=False,dest='want_rpath',help='enable the rpath for qt libraries')
	opt.add_option('--header-ext',type='string',default='',help='header extension for moc files',dest='qt_header_ext')
	for i in'qtdir qtbin qtlibs'.split():
		opt.add_option('--'+i,type='string',default='',dest=i)
	if sys.platform=="darwin":
		opt.add_option('--no-qt4-framework',action="store_false",help='do not use the framework version of Qt4 in OS X',dest='use_qt4_osxframework',default=True)
	opt.add_option('--translate',action="store_true",help="collect translation strings",dest="trans_qt4",default=False)

extension(*EXT_RCC)(create_rcc_task)
extension(*EXT_UI)(create_uic_task)
extension('.ts')(add_lang)
feature('qt4')(apply_qt4)
after_method('apply_link')(apply_qt4)
extension(*EXT_QT4)(cxx_hook)