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+#!/usr/bin/env python
+# encoding: utf-8
+# Federico Pellegrin, 2016-2018 (fedepell) adapted for Python
+
+"""
+This tool helps with finding Python Qt5 tools and libraries,
+and provides translation from QT5 files to Python code.
+
+The following snippet illustrates the tool usage::
+
+ def options(opt):
+ opt.load('py pyqt5')
+
+ def configure(conf):
+ conf.load('py pyqt5')
+
+ def build(bld):
+ bld(
+ features = 'py pyqt5',
+ source = 'main.py textures.qrc aboutDialog.ui',
+ )
+
+Here, the UI description and resource files will be processed
+to generate code.
+
+Usage
+=====
+
+Load the "pyqt5" tool.
+
+Add into the sources list also the qrc resources files or ui5
+definition files and they will be translated into python code
+with the system tools (PyQt5, pyside2, PyQt4 are searched in this
+order) and then compiled
+"""
+
+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
+from waflib.Tools import python
+from waflib import Task, Options
+from waflib.TaskGen import feature, extension
+from waflib.Configure import conf
+from waflib import Logs
+
+EXT_RCC = ['.qrc']
+"""
+File extension for the resource (.qrc) files
+"""
+
+EXT_UI = ['.ui']
+"""
+File extension for the user interface (.ui) files
+"""
+
+
+class XMLHandler(ContentHandler):
+ """
+ Parses ``.qrc`` files
+ """
+ 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)
+
+@extension(*EXT_RCC)
+def create_pyrcc_task(self, node):
+ "Creates rcc and py task for ``.qrc`` files"
+ rcnode = node.change_ext('.py')
+ self.create_task('pyrcc', node, rcnode)
+ if getattr(self, 'install_from', None):
+ self.install_from = self.install_from.get_bld()
+ else:
+ self.install_from = self.path.get_bld()
+ self.install_path = getattr(self, 'install_path', '${PYTHONDIR}')
+ self.process_py(rcnode)
+
+@extension(*EXT_UI)
+def create_pyuic_task(self, node):
+ "Create uic tasks and py for user interface ``.ui`` definition files"
+ uinode = node.change_ext('.py')
+ self.create_task('ui5py', node, uinode)
+ if getattr(self, 'install_from', None):
+ self.install_from = self.install_from.get_bld()
+ else:
+ self.install_from = self.path.get_bld()
+ self.install_path = getattr(self, 'install_path', '${PYTHONDIR}')
+ self.process_py(uinode)
+
+@extension('.ts')
+def add_pylang(self, node):
+ """Adds all the .ts file into ``self.lang``"""
+ self.lang = self.to_list(getattr(self, 'lang', [])) + [node]
+
+@feature('pyqt5')
+def apply_pyqt5(self):
+ """
+ The additional parameters are:
+
+ :param lang: list of translation files (\\*.ts) to process
+ :type lang: list of :py:class:`waflib.Node.Node` or string without the .ts extension
+ :param langname: if given, transform the \\*.ts files into a .qrc files to include in the binary file
+ :type langname: :py:class:`waflib.Node.Node` or string without the .qrc extension
+ """
+ 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, 'langname', None):
+ qmnodes = [k.outputs[0] for k in qmtasks]
+ rcnode = self.langname
+ if isinstance(rcnode, str):
+ rcnode = self.path.find_or_declare(rcnode + '.qrc')
+ t = self.create_task('qm2rcc', qmnodes, rcnode)
+ create_pyrcc_task(self, t.outputs[0])
+
+class pyrcc(Task.Task):
+ """
+ Processes ``.qrc`` files
+ """
+ color = 'BLUE'
+ run_str = '${QT_PYRCC} ${SRC} -o ${TGT}'
+ ext_out = ['.py']
+
+ def rcname(self):
+ return os.path.splitext(self.inputs[0].name)[0]
+
+ def scan(self):
+ """Parse the *.qrc* files"""
+ if not has_xml:
+ Logs.error('No xml.sax support was found, rcc dependencies will be incomplete!')
+ return ([], [])
+
+ parser = make_parser()
+ curHandler = XMLHandler()
+ parser.setContentHandler(curHandler)
+ fi = open(self.inputs[0].abspath(), 'r')
+ try:
+ parser.parse(fi)
+ finally:
+ fi.close()
+
+ nodes = []
+ names = []
+ root = self.inputs[0].parent
+ for x in curHandler.files:
+ nd = root.find_resource(x)
+ if nd:
+ nodes.append(nd)
+ else:
+ names.append(x)
+ return (nodes, names)
+
+
+class ui5py(Task.Task):
+ """
+ Processes ``.ui`` files for python
+ """
+ color = 'BLUE'
+ run_str = '${QT_PYUIC} ${SRC} -o ${TGT}'
+ ext_out = ['.py']
+
+class ts2qm(Task.Task):
+ """
+ Generates ``.qm`` files from ``.ts`` files
+ """
+ color = 'BLUE'
+ run_str = '${QT_LRELEASE} ${QT_LRELEASE_FLAGS} ${SRC} -qm ${TGT}'
+
+class qm2rcc(Task.Task):
+ """
+ Generates ``.qrc`` files from ``.qm`` files
+ """
+ color = 'BLUE'
+ after = 'ts2qm'
+ def run(self):
+ """Create a qrc file including the inputs"""
+ 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):
+ self.find_pyqt5_binaries()
+
+ # warn about this during the configuration too
+ if not has_xml:
+ Logs.error('No xml.sax support was found, rcc dependencies will be incomplete!')
+
+@conf
+def find_pyqt5_binaries(self):
+ """
+ Detects PyQt5 or pyside2 programs such as pyuic5/pyside2-uic, pyrcc5/pyside2-rcc
+ """
+ env = self.env
+
+ if getattr(Options.options, 'want_pyside2', True):
+ self.find_program(['pyside2-uic'], var='QT_PYUIC')
+ self.find_program(['pyside2-rcc'], var='QT_PYRCC')
+ self.find_program(['pyside2-lupdate'], var='QT_PYLUPDATE')
+ elif getattr(Options.options, 'want_pyqt4', True):
+ self.find_program(['pyuic4'], var='QT_PYUIC')
+ self.find_program(['pyrcc4'], var='QT_PYRCC')
+ self.find_program(['pylupdate4'], var='QT_PYLUPDATE')
+ else:
+ self.find_program(['pyuic5','pyside2-uic','pyuic4'], var='QT_PYUIC')
+ self.find_program(['pyrcc5','pyside2-rcc','pyrcc4'], var='QT_PYRCC')
+ self.find_program(['pylupdate5', 'pyside2-lupdate','pylupdate4'], var='QT_PYLUPDATE')
+
+ if not env.QT_PYUIC:
+ self.fatal('cannot find the uic compiler for python for qt5')
+
+ if not env.QT_PYUIC:
+ self.fatal('cannot find the rcc compiler for python for qt5')
+
+ self.find_program(['lrelease-qt5', 'lrelease'], var='QT_LRELEASE')
+
+def options(opt):
+ """
+ Command-line options
+ """
+ pyqt5opt=opt.add_option_group("Python QT5 Options")
+ pyqt5opt.add_option('--pyqt5-pyside2', action='store_true', default=False, dest='want_pyside2', help='use pyside2 bindings as python QT5 bindings (default PyQt5 is searched first, PySide2 after)')
+ pyqt5opt.add_option('--pyqt5-pyqt4', action='store_true', default=False, dest='want_pyqt4', help='use PyQt4 bindings as python QT5 bindings (default PyQt5 is searched first, PySide2 after, PyQt4 last)')