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523 lines
17 KiB
523 lines
17 KiB
#############################################################################
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##
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## Copyright (C) 2019 Riverbank Computing Limited.
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## Copyright (C) 2006 Thorsten Marek.
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## All right reserved.
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##
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## This file is part of PyQt.
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##
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## You may use this file under the terms of the GPL v2 or the revised BSD
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## license as follows:
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##
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## "Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions are
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## met:
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## * Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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## * Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in
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## the documentation and/or other materials provided with the
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## distribution.
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## * Neither the name of the Riverbank Computing Limited nor the names
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## of its contributors may be used to endorse or promote products
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## derived from this software without specific prior written
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## permission.
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##
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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##
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#############################################################################
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import logging
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import os.path
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import sys
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from .exceptions import NoSuchClassError, UnsupportedPropertyError
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from .icon_cache import IconCache
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if sys.hexversion >= 0x03000000:
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from .port_v3.ascii_upper import ascii_upper
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else:
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from .port_v2.ascii_upper import ascii_upper
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logger = logging.getLogger(__name__)
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DEBUG = logger.debug
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QtCore = None
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QtGui = None
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QtWidgets = None
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def int_list(prop):
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return [int(child.text) for child in prop]
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def float_list(prop):
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return [float(child.text) for child in prop]
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bool_ = lambda v: v == "true"
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def qfont_enum(v):
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return getattr(QtGui.QFont, v)
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def needsWidget(func):
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func.needsWidget = True
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return func
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class Properties(object):
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def __init__(self, factory, qtcore_module, qtgui_module, qtwidgets_module):
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self.factory = factory
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global QtCore, QtGui, QtWidgets
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QtCore = qtcore_module
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QtGui = qtgui_module
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QtWidgets = qtwidgets_module
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self._base_dir = ''
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self.reset()
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def set_base_dir(self, base_dir):
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""" Set the base directory to be used for all relative filenames. """
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self._base_dir = base_dir
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self.icon_cache.set_base_dir(base_dir)
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def reset(self):
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self.buddies = []
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self.delayed_props = []
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self.icon_cache = IconCache(self.factory, QtGui)
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def _pyEnumMember(self, cpp_name):
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try:
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prefix, membername = cpp_name.split("::")
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except ValueError:
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prefix = 'Qt'
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membername = cpp_name
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if prefix == 'Qt':
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return getattr(QtCore.Qt, membername)
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scope = self.factory.findQObjectType(prefix)
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if scope is None:
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raise NoSuchClassError(prefix)
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return getattr(scope, membername)
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def _set(self, prop):
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expr = [self._pyEnumMember(v) for v in prop.text.split('|')]
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value = expr[0]
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for v in expr[1:]:
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value |= v
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return value
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def _enum(self, prop):
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return self._pyEnumMember(prop.text)
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def _number(self, prop):
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return int(prop.text)
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_UInt = _uInt = _longLong = _uLongLong = _number
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def _double(self, prop):
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return float(prop.text)
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def _bool(self, prop):
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return prop.text == 'true'
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def _stringlist(self, prop):
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return [self._string(p, notr='true') for p in prop]
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def _string(self, prop, notr=None):
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text = prop.text
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if text is None:
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return ""
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if prop.get('notr', notr) == 'true':
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return text
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disambig = prop.get('comment')
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return QtWidgets.QApplication.translate(self.uiname, text, disambig)
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_char = _string
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def _cstring(self, prop):
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return str(prop.text)
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def _color(self, prop):
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args = int_list(prop)
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# Handle the optional alpha component.
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alpha = int(prop.get("alpha", "255"))
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if alpha != 255:
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args.append(alpha)
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return QtGui.QColor(*args)
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def _point(self, prop):
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return QtCore.QPoint(*int_list(prop))
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def _pointf(self, prop):
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return QtCore.QPointF(*float_list(prop))
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def _rect(self, prop):
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return QtCore.QRect(*int_list(prop))
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def _rectf(self, prop):
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return QtCore.QRectF(*float_list(prop))
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def _size(self, prop):
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return QtCore.QSize(*int_list(prop))
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def _sizef(self, prop):
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return QtCore.QSizeF(*float_list(prop))
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def _pixmap(self, prop):
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if prop.text:
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fname = prop.text.replace("\\", "\\\\")
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if self._base_dir != '' and fname[0] != ':' and not os.path.isabs(fname):
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fname = os.path.join(self._base_dir, fname)
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return QtGui.QPixmap(fname)
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# Don't bother to set the property if the pixmap is empty.
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return None
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def _iconset(self, prop):
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return self.icon_cache.get_icon(prop)
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def _url(self, prop):
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return QtCore.QUrl(prop[0].text)
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def _locale(self, prop):
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lang = getattr(QtCore.QLocale, prop.attrib['language'])
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country = getattr(QtCore.QLocale, prop.attrib['country'])
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return QtCore.QLocale(lang, country)
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def _date(self, prop):
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return QtCore.QDate(*int_list(prop))
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def _datetime(self, prop):
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args = int_list(prop)
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return QtCore.QDateTime(QtCore.QDate(*args[-3:]), QtCore.QTime(*args[:-3]))
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def _time(self, prop):
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return QtCore.QTime(*int_list(prop))
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def _gradient(self, prop):
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name = 'gradient'
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# Create the specific gradient.
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gtype = prop.get('type', '')
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if gtype == 'LinearGradient':
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startx = float(prop.get('startx'))
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starty = float(prop.get('starty'))
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endx = float(prop.get('endx'))
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endy = float(prop.get('endy'))
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gradient = self.factory.createQObject('QLinearGradient', name,
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(startx, starty, endx, endy), is_attribute=False)
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elif gtype == 'ConicalGradient':
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centralx = float(prop.get('centralx'))
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centraly = float(prop.get('centraly'))
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angle = float(prop.get('angle'))
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gradient = self.factory.createQObject('QConicalGradient', name,
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(centralx, centraly, angle), is_attribute=False)
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elif gtype == 'RadialGradient':
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centralx = float(prop.get('centralx'))
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centraly = float(prop.get('centraly'))
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radius = float(prop.get('radius'))
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focalx = float(prop.get('focalx'))
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focaly = float(prop.get('focaly'))
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gradient = self.factory.createQObject('QRadialGradient', name,
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(centralx, centraly, radius, focalx, focaly),
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is_attribute=False)
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else:
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raise UnsupportedPropertyError(prop.tag)
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# Set the common values.
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spread = prop.get('spread')
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if spread:
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gradient.setSpread(getattr(QtGui.QGradient, spread))
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cmode = prop.get('coordinatemode')
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if cmode:
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gradient.setCoordinateMode(getattr(QtGui.QGradient, cmode))
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# Get the gradient stops.
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for gstop in prop:
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if gstop.tag != 'gradientstop':
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raise UnsupportedPropertyError(gstop.tag)
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position = float(gstop.get('position'))
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color = self._color(gstop[0])
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gradient.setColorAt(position, color)
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return gradient
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def _palette(self, prop):
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palette = self.factory.createQObject("QPalette", "palette", (),
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is_attribute=False)
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for palette_elem in prop:
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sub_palette = getattr(QtGui.QPalette, palette_elem.tag.title())
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for role, color in enumerate(palette_elem):
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if color.tag == 'color':
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# Handle simple colour descriptions where the role is
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# implied by the colour's position.
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palette.setColor(sub_palette,
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QtGui.QPalette.ColorRole(role), self._color(color))
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elif color.tag == 'colorrole':
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role = getattr(QtGui.QPalette, color.get('role'))
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brush = self._brush(color[0])
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palette.setBrush(sub_palette, role, brush)
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else:
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raise UnsupportedPropertyError(color.tag)
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return palette
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def _brush(self, prop):
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brushstyle = prop.get('brushstyle')
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if brushstyle in ('LinearGradientPattern', 'ConicalGradientPattern', 'RadialGradientPattern'):
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gradient = self._gradient(prop[0])
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brush = self.factory.createQObject("QBrush", "brush", (gradient, ),
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is_attribute=False)
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else:
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color = self._color(prop[0])
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brush = self.factory.createQObject("QBrush", "brush", (color, ),
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is_attribute=False)
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brushstyle = getattr(QtCore.Qt, brushstyle)
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brush.setStyle(brushstyle)
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return brush
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#@needsWidget
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def _sizepolicy(self, prop, widget):
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values = [int(child.text) for child in prop]
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if len(values) == 2:
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# Qt v4.3.0 and later.
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horstretch, verstretch = values
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hsizetype = getattr(QtWidgets.QSizePolicy, prop.get('hsizetype'))
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vsizetype = getattr(QtWidgets.QSizePolicy, prop.get('vsizetype'))
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else:
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hsizetype, vsizetype, horstretch, verstretch = values
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hsizetype = QtWidgets.QSizePolicy.Policy(hsizetype)
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vsizetype = QtWidgets.QSizePolicy.Policy(vsizetype)
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sizePolicy = self.factory.createQObject('QSizePolicy', 'sizePolicy',
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(hsizetype, vsizetype), is_attribute=False)
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sizePolicy.setHorizontalStretch(horstretch)
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sizePolicy.setVerticalStretch(verstretch)
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sizePolicy.setHeightForWidth(widget.sizePolicy().hasHeightForWidth())
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return sizePolicy
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_sizepolicy = needsWidget(_sizepolicy)
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# font needs special handling/conversion of all child elements.
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_font_attributes = (("Family", lambda s: s),
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("PointSize", int),
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("Bold", bool_),
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("Italic", bool_),
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("Underline", bool_),
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("Weight", int),
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("StrikeOut", bool_),
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("Kerning", bool_),
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("StyleStrategy", qfont_enum))
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def _font(self, prop):
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newfont = self.factory.createQObject("QFont", "font", (),
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is_attribute = False)
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for attr, converter in self._font_attributes:
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v = prop.findtext("./%s" % (attr.lower(),))
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if v is None:
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continue
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getattr(newfont, "set%s" % (attr,))(converter(v))
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return newfont
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def _cursor(self, prop):
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return QtGui.QCursor(QtCore.Qt.CursorShape(int(prop.text)))
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def _cursorShape(self, prop):
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return QtGui.QCursor(getattr(QtCore.Qt, prop.text))
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def convert(self, prop, widget=None):
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try:
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func = getattr(self, "_" + prop[0].tag)
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except AttributeError:
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raise UnsupportedPropertyError(prop[0].tag)
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else:
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args = {}
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if getattr(func, "needsWidget", False):
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assert widget is not None
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args["widget"] = widget
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return func(prop[0], **args)
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def _getChild(self, elem_tag, elem, name, default=None):
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for prop in elem.findall(elem_tag):
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if prop.attrib["name"] == name:
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return self.convert(prop)
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else:
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return default
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def getProperty(self, elem, name, default=None):
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return self._getChild("property", elem, name, default)
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def getAttribute(self, elem, name, default=None):
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return self._getChild("attribute", elem, name, default)
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def setProperties(self, widget, elem):
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# Lines are sunken unless the frame shadow is explicitly set.
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set_sunken = (elem.attrib.get('class') == 'Line')
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for prop in elem.findall('property'):
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prop_name = prop.attrib['name']
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DEBUG("setting property %s" % (prop_name,))
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if prop_name == 'frameShadow':
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set_sunken = False
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try:
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stdset = bool(int(prop.attrib['stdset']))
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except KeyError:
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stdset = True
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if not stdset:
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self._setViaSetProperty(widget, prop)
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elif hasattr(self, prop_name):
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getattr(self, prop_name)(widget, prop)
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else:
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prop_value = self.convert(prop, widget)
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if prop_value is not None:
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getattr(widget, 'set%s%s' % (ascii_upper(prop_name[0]), prop_name[1:]))(prop_value)
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if set_sunken:
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widget.setFrameShadow(QtWidgets.QFrame.Sunken)
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# SPECIAL PROPERTIES
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# If a property has a well-known value type but needs special,
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# context-dependent handling, the default behaviour can be overridden here.
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# Delayed properties will be set after the whole widget tree has been
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# populated.
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def _delayed_property(self, widget, prop):
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prop_value = self.convert(prop)
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if prop_value is not None:
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prop_name = prop.attrib["name"]
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self.delayed_props.append((widget, False,
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'set%s%s' % (ascii_upper(prop_name[0]), prop_name[1:]),
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prop_value))
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# These properties will be set with a widget.setProperty call rather than
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# calling the set<property> function.
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def _setViaSetProperty(self, widget, prop):
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prop_value = self.convert(prop, widget)
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if prop_value is not None:
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prop_name = prop.attrib['name']
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# This appears to be a Designer/uic hack where stdset=0 means that
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# the viewport should be used.
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if prop[0].tag == 'cursorShape':
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widget.viewport().setProperty(prop_name, prop_value)
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else:
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widget.setProperty(prop_name, prop_value)
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# Ignore the property.
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def _ignore(self, widget, prop):
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pass
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# Define properties that use the canned handlers.
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currentIndex = _delayed_property
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currentRow = _delayed_property
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showDropIndicator = _setViaSetProperty
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intValue = _setViaSetProperty
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value = _setViaSetProperty
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objectName = _ignore
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margin = _ignore
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leftMargin = _ignore
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topMargin = _ignore
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rightMargin = _ignore
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bottomMargin = _ignore
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spacing = _ignore
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horizontalSpacing = _ignore
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verticalSpacing = _ignore
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# tabSpacing is actually the spacing property of the widget's layout.
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def tabSpacing(self, widget, prop):
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prop_value = self.convert(prop)
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if prop_value is not None:
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self.delayed_props.append((widget, True, 'setSpacing', prop_value))
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# buddy setting has to be done after the whole widget tree has been
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# populated. We can't use delay here because we cannot get the actual
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# buddy yet.
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def buddy(self, widget, prop):
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buddy_name = prop[0].text
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if buddy_name:
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self.buddies.append((widget, buddy_name))
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# geometry is handled specially if set on the toplevel widget.
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def geometry(self, widget, prop):
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if widget.objectName() == self.uiname:
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geom = int_list(prop[0])
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widget.resize(geom[2], geom[3])
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else:
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widget.setGeometry(self._rect(prop[0]))
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def orientation(self, widget, prop):
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# If the class is a QFrame, it's a line.
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if widget.metaObject().className() == 'QFrame':
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widget.setFrameShape(
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{'Qt::Horizontal': QtWidgets.QFrame.HLine,
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'Qt::Vertical' : QtWidgets.QFrame.VLine}[prop[0].text])
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else:
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widget.setOrientation(self._enum(prop[0]))
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# The isWrapping attribute of QListView is named inconsistently, it should
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# be wrapping.
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def isWrapping(self, widget, prop):
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widget.setWrapping(self.convert(prop))
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# This is a pseudo-property injected to deal with margins.
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def pyuicMargins(self, widget, prop):
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widget.setContentsMargins(*int_list(prop))
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# This is a pseudo-property injected to deal with spacing.
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def pyuicSpacing(self, widget, prop):
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horiz, vert = int_list(prop)
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if horiz == vert:
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widget.setSpacing(horiz)
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else:
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if horiz >= 0:
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widget.setHorizontalSpacing(horiz)
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if vert >= 0:
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widget.setVerticalSpacing(vert)
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|