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
|
# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2004-2017 European Synchrotron Radiation Facility
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ###########################################################################*/
"""Common wrapper over Python Qt bindings:
- `PyQt5 <http://pyqt.sourceforge.net/Docs/PyQt5/>`_,
- `PyQt4 <http://pyqt.sourceforge.net/Docs/PyQt4/>`_ or
- `PySide <http://www.pyside.org>`_.
If a Qt binding is already loaded, it will use it, otherwise the different
Qt bindings are tried in this order: PyQt4, PySide, PyQt5.
The name of the loaded Qt binding is stored in the BINDING variable.
For an alternative solution providing a structured namespace,
see `qtpy <https://pypi.python.org/pypi/QtPy/>`_ which
provides the namespace of PyQt5 over PyQt4 and PySide.
"""
__authors__ = ["V.A. Sole - ESRF Data Analysis"]
__license__ = "MIT"
__date__ = "26/12/2020"
import logging
import sys
import traceback
_logger = logging.getLogger(__name__)
BINDING = None
"""The name of the Qt binding in use: 'PyQt5', 'PyQt4' or 'PySide'."""
QtBinding = None # noqa
"""The Qt binding module in use: PyQt5, PyQt4 or PySide."""
HAS_SVG = False
"""True if Qt provides support for Scalable Vector Graphics (QtSVG)."""
HAS_OPENGL = False
"""True if Qt provides support for OpenGL (QtOpenGL)."""
# First check for an already loaded wrapper
if 'PySide.QtCore' in sys.modules:
BINDING = 'PySide'
elif 'PyQt5.QtCore' in sys.modules:
BINDING = 'PyQt5'
elif 'PyQt4.QtCore' in sys.modules:
BINDING = 'PyQt4'
else: # Then try Qt bindings
try:
import PyQt4 # noqa
except ImportError:
try:
import PySide # noqa
except ImportError:
try:
import PyQt5 # noqa
except ImportError:
raise ImportError(
'No Qt wrapper found. Install PyQt4, PyQt5 or PySide.')
else:
BINDING = 'PyQt5'
else:
BINDING = 'PySide'
else:
BINDING = 'PyQt4'
if BINDING == 'PyQt4':
_logger.debug('Using PyQt4 bindings')
import PyQt4 as QtBinding # noqa
from PyQt4.QtCore import * # noqa
from PyQt4.QtGui import * # noqa
try:
from PyQt4.QtOpenGL import * # noqa
except ImportError:
_logger.info("PyQt4.QtOpenGL not available")
HAS_OPENGL = False
else:
HAS_OPENGL = True
try:
from PyQt4.QtSvg import * # noqa
except ImportError:
_logger.info("PyQt4.QtSvg not available")
HAS_SVG = False
else:
HAS_SVG = True
from PyQt4.uic import loadUi # noqa
Signal = pyqtSignal
Property = pyqtProperty
Slot = pyqtSlot
elif BINDING == 'PySide':
_logger.debug('Using PySide bindings')
import PySide as QtBinding # noqa
from PySide.QtCore import * # noqa
from PySide.QtGui import * # noqa
try:
from PySide.QtOpenGL import * # noqa
except ImportError:
_logger.info("PySide.QtOpenGL not available")
HAS_OPENGL = False
else:
HAS_OPENGL = True
try:
from PySide.QtSvg import * # noqa
except ImportError:
_logger.info("PySide.QtSvg not available")
HAS_SVG = False
else:
HAS_SVG = True
pyqtSignal = Signal
elif BINDING == 'PyQt5':
_logger.debug('Using PyQt5 bindings')
import PyQt5 as QtBinding # noqa
from PyQt5.QtCore import * # noqa
from PyQt5.QtGui import * # noqa
from PyQt5.QtWidgets import * # noqa
from PyQt5.QtPrintSupport import * # noqa
try:
from PyQt5.QtOpenGL import * # noqa
except ImportError:
_logger.info("PySide.QtOpenGL not available")
HAS_OPENGL = False
else:
HAS_OPENGL = True
try:
from PyQt5.QtSvg import * # noqa
except ImportError:
_logger.info("PyQt5.QtSvg not available")
HAS_SVG = False
else:
HAS_SVG = True
from PyQt5.uic import loadUi # noqa
Signal = pyqtSignal
Property = pyqtProperty
Slot = pyqtSlot
else:
raise ImportError('No Qt wrapper found. Install PyQt4, PyQt5 or PySide')
|