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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)')