summaryrefslogtreecommitdiffstats
path: root/third_party/waf/waflib/extras/pyqt5.py
blob: 9c941764cc2492213ab38453c4c612504be35c43 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
#!/usr/bin/env python
# encoding: utf-8
# Federico Pellegrin, 2016-2019 (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_pyqt5', True):
		self.find_program(['pyuic5'], var='QT_PYUIC')
		self.find_program(['pyrcc5'], var='QT_PYRCC')
		self.find_program(['pylupdate5'], var='QT_PYLUPDATE')
	elif 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_PYRCC:
		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-pyqt5', action='store_true', default=False, dest='want_pyqt5', help='use PyQt5 bindings as python QT5 bindings (default PyQt5 is searched first, PySide2 after, PyQt4 last)')
	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, PyQt4 last)')
	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)')