mirror of
https://gitlab.com/ita1024/waf.git
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242 lines
6.7 KiB
Python
242 lines
6.7 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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# Federico Pellegrin, 2016-2018 (fedepell) adapted for Python
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"""
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This tool helps with finding Python Qt5 tools and libraries,
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and provides translation from QT5 files to Python code.
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The following snippet illustrates the tool usage::
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def options(opt):
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opt.load('py pyqt5')
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def configure(conf):
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conf.load('py pyqt5')
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def build(bld):
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bld(
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features = 'py pyqt5',
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source = 'main.py textures.qrc aboutDialog.ui',
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)
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Here, the UI description and resource files will be processed
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to generate code.
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Usage
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=====
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Load the "pyqt5" tool.
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Add into the sources list also the qrc resources files or ui5
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definition files and they will be translated into python code
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with the system tools (PyQt5, pyside2, PyQt4 are searched in this
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order) and then compiled
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"""
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try:
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from xml.sax import make_parser
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from xml.sax.handler import ContentHandler
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except ImportError:
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has_xml = False
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ContentHandler = object
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else:
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has_xml = True
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import os
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from waflib.Tools import python
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from waflib import Task, Options
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from waflib.TaskGen import feature, extension
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from waflib.Configure import conf
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from waflib import Logs
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EXT_RCC = ['.qrc']
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"""
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File extension for the resource (.qrc) files
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"""
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EXT_UI = ['.ui']
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"""
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File extension for the user interface (.ui) files
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"""
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class XMLHandler(ContentHandler):
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"""
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Parses ``.qrc`` files
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"""
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def __init__(self):
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self.buf = []
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self.files = []
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def startElement(self, name, attrs):
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if name == 'file':
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self.buf = []
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def endElement(self, name):
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if name == 'file':
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self.files.append(str(''.join(self.buf)))
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def characters(self, cars):
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self.buf.append(cars)
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@extension(*EXT_RCC)
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def create_pyrcc_task(self, node):
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"Creates rcc and py task for ``.qrc`` files"
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rcnode = node.change_ext('.py')
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self.create_task('pyrcc', node, rcnode)
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if getattr(self, 'install_from', None):
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self.install_from = self.install_from.get_bld()
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else:
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self.install_from = self.path.get_bld()
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self.install_path = getattr(self, 'install_path', '${PYTHONDIR}')
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self.process_py(rcnode)
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@extension(*EXT_UI)
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def create_pyuic_task(self, node):
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"Create uic tasks and py for user interface ``.ui`` definition files"
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uinode = node.change_ext('.py')
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self.create_task('ui5py', node, uinode)
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if getattr(self, 'install_from', None):
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self.install_from = self.install_from.get_bld()
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else:
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self.install_from = self.path.get_bld()
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self.install_path = getattr(self, 'install_path', '${PYTHONDIR}')
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self.process_py(uinode)
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@extension('.ts')
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def add_pylang(self, node):
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"""Adds all the .ts file into ``self.lang``"""
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self.lang = self.to_list(getattr(self, 'lang', [])) + [node]
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@feature('pyqt5')
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def apply_pyqt5(self):
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"""
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The additional parameters are:
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:param lang: list of translation files (\*.ts) to process
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:type lang: list of :py:class:`waflib.Node.Node` or string without the .ts extension
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:param langname: if given, transform the \*.ts files into a .qrc files to include in the binary file
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:type langname: :py:class:`waflib.Node.Node` or string without the .qrc extension
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"""
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if getattr(self, 'lang', None):
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qmtasks = []
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for x in self.to_list(self.lang):
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if isinstance(x, str):
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x = self.path.find_resource(x + '.ts')
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qmtasks.append(self.create_task('ts2qm', x, x.change_ext('.qm')))
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if getattr(self, 'langname', None):
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qmnodes = [k.outputs[0] for k in qmtasks]
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rcnode = self.langname
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if isinstance(rcnode, str):
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rcnode = self.path.find_or_declare(rcnode + '.qrc')
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t = self.create_task('qm2rcc', qmnodes, rcnode)
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create_pyrcc_task(self, t.outputs[0])
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class pyrcc(Task.Task):
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"""
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Processes ``.qrc`` files
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"""
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color = 'BLUE'
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run_str = '${QT_PYRCC} ${SRC} -o ${TGT}'
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ext_out = ['.py']
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def rcname(self):
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return os.path.splitext(self.inputs[0].name)[0]
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def scan(self):
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"""Parse the *.qrc* files"""
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if not has_xml:
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Logs.error('No xml.sax support was found, rcc dependencies will be incomplete!')
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return ([], [])
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parser = make_parser()
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curHandler = XMLHandler()
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parser.setContentHandler(curHandler)
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fi = open(self.inputs[0].abspath(), 'r')
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try:
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parser.parse(fi)
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finally:
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fi.close()
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nodes = []
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names = []
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root = self.inputs[0].parent
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for x in curHandler.files:
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nd = root.find_resource(x)
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if nd:
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nodes.append(nd)
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else:
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names.append(x)
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return (nodes, names)
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class ui5py(Task.Task):
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"""
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Processes ``.ui`` files for python
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"""
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color = 'BLUE'
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run_str = '${QT_PYUIC} ${SRC} -o ${TGT}'
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ext_out = ['.py']
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class ts2qm(Task.Task):
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"""
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Generates ``.qm`` files from ``.ts`` files
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"""
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color = 'BLUE'
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run_str = '${QT_LRELEASE} ${QT_LRELEASE_FLAGS} ${SRC} -qm ${TGT}'
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class qm2rcc(Task.Task):
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"""
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Generates ``.qrc`` files from ``.qm`` files
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"""
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color = 'BLUE'
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after = 'ts2qm'
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def run(self):
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"""Create a qrc file including the inputs"""
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txt = '\n'.join(['<file>%s</file>' % k.path_from(self.outputs[0].parent) for k in self.inputs])
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code = '<!DOCTYPE RCC><RCC version="1.0">\n<qresource>\n%s\n</qresource>\n</RCC>' % txt
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self.outputs[0].write(code)
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def configure(self):
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self.find_pyqt5_binaries()
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# warn about this during the configuration too
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if not has_xml:
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Logs.error('No xml.sax support was found, rcc dependencies will be incomplete!')
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@conf
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def find_pyqt5_binaries(self):
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"""
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Detects PyQt5 or pyside2 programs such as pyuic5/pyside2-uic, pyrcc5/pyside2-rcc
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"""
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env = self.env
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if getattr(Options.options, 'want_pyside2', True):
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self.find_program(['pyside2-uic'], var='QT_PYUIC')
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self.find_program(['pyside2-rcc'], var='QT_PYRCC')
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self.find_program(['pyside2-lupdate'], var='QT_PYLUPDATE')
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elif getattr(Options.options, 'want_pyqt4', True):
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self.find_program(['pyuic4'], var='QT_PYUIC')
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self.find_program(['pyrcc4'], var='QT_PYRCC')
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self.find_program(['pylupdate4'], var='QT_PYLUPDATE')
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else:
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self.find_program(['pyuic5','pyside2-uic','pyuic4'], var='QT_PYUIC')
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self.find_program(['pyrcc5','pyside2-rcc','pyrcc4'], var='QT_PYRCC')
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self.find_program(['pylupdate5', 'pyside2-lupdate','pylupdate4'], var='QT_PYLUPDATE')
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if not env.QT_PYUIC:
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self.fatal('cannot find the uic compiler for python for qt5')
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if not env.QT_PYUIC:
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self.fatal('cannot find the rcc compiler for python for qt5')
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self.find_program(['lrelease-qt5', 'lrelease'], var='QT_LRELEASE')
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def options(opt):
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"""
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Command-line options
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"""
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pyqt5opt=opt.add_option_group("Python QT5 Options")
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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)')
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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)')
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