/usr/lib/python3/dist-packages/PyQt4/uic/properties.py is in python3-pyqt4 4.10.4+dfsg-1ubuntu1.
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##
## Copyright (C) 2011 Riverbank Computing Limited.
## Copyright (C) 2006 Thorsten Marek.
## All right reserved.
##
## This file is part of PyQt.
##
## You may use this file under the terms of the GPL v2 or the revised BSD
## license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
## * Neither the name of the Riverbank Computing Limited nor the names
## of its contributors may be used to endorse or promote products
## derived from this software without specific prior written
## permission.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
##
#############################################################################
import logging
import os.path
import sys
from PyQt4.uic.exceptions import UnsupportedPropertyError
from PyQt4.uic.icon_cache import IconCache
if sys.hexversion >= 0x03000000:
from PyQt4.uic.port_v3.ascii_upper import ascii_upper
else:
from PyQt4.uic.port_v2.ascii_upper import ascii_upper
logger = logging.getLogger(__name__)
DEBUG = logger.debug
QtCore = None
QtGui = None
def int_list(prop):
return [int(child.text) for child in prop]
def float_list(prop):
return [float(child.text) for child in prop]
bool_ = lambda v: v == "true"
def qfont_enum(v):
return getattr(QtGui.QFont, v)
def needsWidget(func):
func.needsWidget = True
return func
class Properties(object):
def __init__(self, factory, QtCore_mod, QtGui_mod):
global QtGui, QtCore
QtGui = QtGui_mod
QtCore = QtCore_mod
self.factory = factory
self._base_dir = ''
self.reset()
def set_base_dir(self, base_dir):
""" Set the base directory to be used for all relative filenames. """
self._base_dir = base_dir
self.icon_cache.set_base_dir(base_dir)
def reset(self):
self.buddies = []
self.delayed_props = []
self.icon_cache = IconCache(self.factory, QtGui)
def _pyEnumMember(self, cpp_name):
try:
prefix, membername = cpp_name.split("::")
except ValueError:
prefix = "Qt"
membername = cpp_name
if prefix == "Qt":
return getattr(QtCore.Qt, membername)
scope = self.factory.findQObjectType(prefix)
if scope is None:
raise AttributeError("unknown enum %s" % cpp_name)
return getattr(scope, membername)
def _set(self, prop):
expr = [self._pyEnumMember(v) for v in prop.text.split('|')]
value = expr[0]
for v in expr[1:]:
value |= v
return value
def _enum(self, prop):
return self._pyEnumMember(prop.text)
def _number(self, prop):
return int(prop.text)
_uInt = _longLong = _uLongLong = _number
def _double(self, prop):
return float(prop.text)
def _bool(self, prop):
return prop.text == 'true'
def _stringlist(self, prop):
return [self._string(p, notr='true') for p in prop]
def _string(self, prop, notr=None):
text = prop.text
if text is None:
return ""
if prop.get('notr', notr) == 'true':
return text
disambig = prop.get('comment')
# Allow for Qt5 without deprecated features.
try:
encoding = QtGui.QApplication.UnicodeUTF8
translated = QtGui.QApplication.translate(self.uiname, text,
disambig, encoding)
except AttributeError:
translated = QtGui.QApplication.translate(self.uiname, text,
disambig)
return translated
_char = _string
def _cstring(self, prop):
return str(prop.text)
def _color(self, prop):
args = int_list(prop)
# Handle the optional alpha component.
alpha = int(prop.get("alpha", "255"))
if alpha != 255:
args.append(alpha)
return QtGui.QColor(*args)
def _point(self, prop):
return QtCore.QPoint(*int_list(prop))
def _pointf(self, prop):
return QtCore.QPointF(*float_list(prop))
def _rect(self, prop):
return QtCore.QRect(*int_list(prop))
def _rectf(self, prop):
return QtCore.QRectF(*float_list(prop))
def _size(self, prop):
return QtCore.QSize(*int_list(prop))
def _sizef(self, prop):
return QtCore.QSizeF(*float_list(prop))
def _pixmap(self, prop):
if prop.text:
fname = prop.text.replace("\\", "\\\\")
if self._base_dir != '' and fname[0] != ':' and not os.path.isabs(fname):
fname = os.path.join(self._base_dir, fname)
return QtGui.QPixmap(fname)
# Don't bother to set the property if the pixmap is empty.
return None
def _iconset(self, prop):
return self.icon_cache.get_icon(prop)
def _url(self, prop):
return QtCore.QUrl(prop[0].text)
def _locale(self, prop):
lang = getattr(QtCore.QLocale, prop.attrib['language'])
country = getattr(QtCore.QLocale, prop.attrib['country'])
return QtCore.QLocale(lang, country)
def _date(self, prop):
return QtCore.QDate(*int_list(prop))
def _datetime(self, prop):
args = int_list(prop)
return QtCore.QDateTime(QtCore.QDate(*args[-3:]), QtCore.QTime(*args[:-3]))
def _time(self, prop):
return QtCore.QTime(*int_list(prop))
def _gradient(self, prop):
name = 'gradient'
# Create the specific gradient.
gtype = prop.get('type', '')
if gtype == 'LinearGradient':
startx = float(prop.get('startx'))
starty = float(prop.get('starty'))
endx = float(prop.get('endx'))
endy = float(prop.get('endy'))
gradient = self.factory.createQObject('QLinearGradient', name,
(startx, starty, endx, endy), is_attribute=False)
elif gtype == 'ConicalGradient':
centralx = float(prop.get('centralx'))
centraly = float(prop.get('centraly'))
angle = float(prop.get('angle'))
gradient = self.factory.createQObject('QConicalGradient', name,
(centralx, centraly, angle), is_attribute=False)
elif gtype == 'RadialGradient':
centralx = float(prop.get('centralx'))
centraly = float(prop.get('centraly'))
radius = float(prop.get('radius'))
focalx = float(prop.get('focalx'))
focaly = float(prop.get('focaly'))
gradient = self.factory.createQObject('QRadialGradient', name,
(centralx, centraly, radius, focalx, focaly),
is_attribute=False)
else:
raise UnsupportedPropertyError(prop.tag)
# Set the common values.
spread = prop.get('spread')
if spread:
gradient.setSpread(getattr(QtGui.QGradient, spread))
cmode = prop.get('coordinatemode')
if cmode:
gradient.setCoordinateMode(getattr(QtGui.QGradient, cmode))
# Get the gradient stops.
for gstop in prop:
if gstop.tag != 'gradientstop':
raise UnsupportedPropertyError(gstop.tag)
position = float(gstop.get('position'))
color = self._color(gstop[0])
gradient.setColorAt(position, color)
return name
def _palette(self, prop):
palette = self.factory.createQObject("QPalette", "palette", (),
is_attribute=False)
for palette_elem in prop:
sub_palette = getattr(QtGui.QPalette, palette_elem.tag.title())
for role, color in enumerate(palette_elem):
if color.tag == 'color':
# Handle simple colour descriptions where the role is
# implied by the colour's position.
palette.setColor(sub_palette,
QtGui.QPalette.ColorRole(role), self._color(color))
elif color.tag == 'colorrole':
role = getattr(QtGui.QPalette, color.get('role'))
brush = self._brush(color[0])
palette.setBrush(sub_palette, role, brush)
else:
raise UnsupportedPropertyError(color.tag)
return palette
def _brush(self, prop):
brushstyle = prop.get('brushstyle')
if brushstyle in ('LinearGradientPattern', 'ConicalGradientPattern', 'RadialGradientPattern'):
gradient = self._gradient(prop[0])
brush = self.factory.createQObject("QBrush", "brush", (gradient, ),
is_attribute=False)
else:
color = self._color(prop[0])
brush = self.factory.createQObject("QBrush", "brush", (color, ),
is_attribute=False)
brushstyle = getattr(QtCore.Qt, brushstyle)
brush.setStyle(brushstyle)
return brush
#@needsWidget
def _sizepolicy(self, prop, widget):
values = [int(child.text) for child in prop]
if len(values) == 2:
# Qt v4.3.0 and later.
horstretch, verstretch = values
hsizetype = getattr(QtGui.QSizePolicy, prop.get('hsizetype'))
vsizetype = getattr(QtGui.QSizePolicy, prop.get('vsizetype'))
else:
hsizetype, vsizetype, horstretch, verstretch = values
hsizetype = QtGui.QSizePolicy.Policy(hsizetype)
vsizetype = QtGui.QSizePolicy.Policy(vsizetype)
sizePolicy = self.factory.createQObject("QSizePolicy", "sizePolicy",
(hsizetype, vsizetype), is_attribute=False)
sizePolicy.setHorizontalStretch(horstretch)
sizePolicy.setVerticalStretch(verstretch)
sizePolicy.setHeightForWidth(widget.sizePolicy().hasHeightForWidth())
return sizePolicy
_sizepolicy = needsWidget(_sizepolicy)
# font needs special handling/conversion of all child elements.
_font_attributes = (("Family", str),
("PointSize", int),
("Bold", bool_),
("Italic", bool_),
("Underline", bool_),
("Weight", int),
("StrikeOut", bool_),
("Kerning", bool_),
("StyleStrategy", qfont_enum))
def _font(self, prop):
newfont = self.factory.createQObject("QFont", "font", (),
is_attribute = False)
for attr, converter in self._font_attributes:
v = prop.findtext("./%s" % (attr.lower(),))
if v is None:
continue
getattr(newfont, "set%s" % (attr,))(converter(v))
return newfont
def _cursor(self, prop):
return QtGui.QCursor(QtCore.Qt.CursorShape(int(prop.text)))
def _cursorShape(self, prop):
return QtGui.QCursor(getattr(QtCore.Qt, prop.text))
def convert(self, prop, widget=None):
try:
func = getattr(self, "_" + prop[0].tag)
except AttributeError:
raise UnsupportedPropertyError(prop[0].tag)
else:
args = {}
if getattr(func, "needsWidget", False):
assert widget is not None
args["widget"] = widget
return func(prop[0], **args)
def _getChild(self, elem_tag, elem, name, default=None):
for prop in elem.findall(elem_tag):
if prop.attrib["name"] == name:
return self.convert(prop)
else:
return default
def getProperty(self, elem, name, default=None):
return self._getChild("property", elem, name, default)
def getAttribute(self, elem, name, default=None):
return self._getChild("attribute", elem, name, default)
def setProperties(self, widget, elem):
try:
self.wclass = elem.attrib["class"]
except KeyError:
pass
for prop in elem.findall("property"):
prop_name = prop.attrib["name"]
DEBUG("setting property %s" % (prop_name,))
try:
stdset = bool(int(prop.attrib["stdset"]))
except KeyError:
stdset = True
if not stdset:
self._setViaSetProperty(widget, prop)
elif hasattr(self, prop_name):
getattr(self, prop_name)(widget, prop)
else:
prop_value = self.convert(prop, widget)
if prop_value is not None:
getattr(widget, "set%s%s" % (ascii_upper(prop_name[0]), prop_name[1:]))(prop_value)
# SPECIAL PROPERTIES
# If a property has a well-known value type but needs special,
# context-dependent handling, the default behaviour can be overridden here.
# Delayed properties will be set after the whole widget tree has been
# populated.
def _delayed_property(self, widget, prop):
prop_value = self.convert(prop)
if prop_value is not None:
prop_name = prop.attrib["name"]
self.delayed_props.append((widget, False,
'set%s%s' % (ascii_upper(prop_name[0]), prop_name[1:]),
prop_value))
# These properties will be set with a widget.setProperty call rather than
# calling the set<property> function.
def _setViaSetProperty(self, widget, prop):
prop_value = self.convert(prop)
if prop_value is not None:
prop_name = prop.attrib['name']
# This appears to be a Designer/uic hack where stdset=0 means that
# the viewport should be used.
if prop[0].tag == 'cursorShape':
widget.viewport().setProperty(prop_name, prop_value)
else:
widget.setProperty(prop_name, prop_value)
# Ignore the property.
def _ignore(self, widget, prop):
pass
# Define properties that use the canned handlers.
currentIndex = _delayed_property
currentRow = _delayed_property
showDropIndicator = _setViaSetProperty
intValue = _setViaSetProperty
value = _setViaSetProperty
objectName = _ignore
leftMargin = _ignore
topMargin = _ignore
rightMargin = _ignore
bottomMargin = _ignore
horizontalSpacing = _ignore
verticalSpacing = _ignore
# tabSpacing is actually the spacing property of the widget's layout.
def tabSpacing(self, widget, prop):
prop_value = self.convert(prop)
if prop_value is not None:
self.delayed_props.append((widget, True, 'setSpacing', prop_value))
# buddy setting has to be done after the whole widget tree has been
# populated. We can't use delay here because we cannot get the actual
# buddy yet.
def buddy(self, widget, prop):
buddy_name = prop[0].text
if buddy_name:
self.buddies.append((widget, buddy_name))
# geometry is handled specially if set on the toplevel widget.
def geometry(self, widget, prop):
if widget.objectName() == self.uiname:
geom = int_list(prop[0])
widget.resize(geom[2], geom[3])
else:
widget.setGeometry(self._rect(prop[0]))
def orientation(self, widget, prop):
# If the class is a QFrame, it's a line.
if widget.metaObject().className() == "QFrame":
widget.setFrameShape(
{"Qt::Horizontal": QtGui.QFrame.HLine,
"Qt::Vertical" : QtGui.QFrame.VLine}[prop[0].text])
# In Qt Designer, lines appear to be sunken, QFormBuilder loads
# them as such, uic generates plain lines. We stick to the look in
# Qt Designer.
widget.setFrameShadow(QtGui.QFrame.Sunken)
else:
widget.setOrientation(self._enum(prop[0]))
# The isWrapping attribute of QListView is named inconsistently, it should
# be wrapping.
def isWrapping(self, widget, prop):
widget.setWrapping(self.convert(prop))
# This is a pseudo-property injected to deal with setContentsMargin()
# introduced in Qt v4.3.
def pyuicContentsMargins(self, widget, prop):
widget.setContentsMargins(*int_list(prop))
# This is a pseudo-property injected to deal with setHorizontalSpacing()
# and setVerticalSpacing() introduced in Qt v4.3.
def pyuicSpacing(self, widget, prop):
horiz, vert = int_list(prop)
if horiz == vert:
widget.setSpacing(horiz)
else:
if horiz >= 0:
widget.setHorizontalSpacing(horiz)
if vert >= 0:
widget.setVerticalSpacing(vert)
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