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130 lines
4.0 KiB
Python
130 lines
4.0 KiB
Python
# Created By: Virgil Dupras
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# Created On: 2009-05-03
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# Copyright 2013 Hardcoded Software (http://www.hardcoded.net)
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#
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# This software is licensed under the "BSD" License as described in the "LICENSE" file,
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# which should be included with this package. The terms are also available at
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# http://www.hardcoded.net/licenses/bsd_license
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from PyQt4.QtCore import Qt, QSettings, QRect, QPyNullVariant
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from hscommon.trans import trget
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from hscommon.util import tryint
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tr = trget('qtlib')
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LANGNAMES = {
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'en': tr("English"),
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'fr': tr("French"),
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'de': tr("German"),
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'zh_CN': tr("Chinese (Simplified)"),
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'cs': tr("Czech"),
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'it': tr("Italian"),
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'hy': tr("Armenian"),
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'ru': tr("Russian"),
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'uk': tr("Ukrainian"),
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'nl': tr('Dutch'),
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'pt_BR': tr("Brazilian"),
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'es': tr("Spanish"),
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'vi': tr("Vietnamese"),
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}
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def normalize_for_serialization(v):
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# QSettings doesn't consider set/tuple as "native" typs for serialization, so if we don't
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# change them into a list, we get a weird serialized QVariant value which isn't a very
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# "portable" value.
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if isinstance(v, (set, tuple)):
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v = list(v)
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if isinstance(v, list):
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v = [normalize_for_serialization(item) for item in v]
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return v
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def adjust_after_deserialization(v):
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# In some cases, when reading from prefs, we end up with strings that are supposed to be
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# bool or int. Convert these.
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if isinstance(v, list):
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return [adjust_after_deserialization(sub) for sub in v]
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if isinstance(v, str):
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# might be bool or int, try them
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if v == 'true':
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return True
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elif v == 'false':
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return False
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else:
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return tryint(v, v)
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if isinstance(v, QPyNullVariant):
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return None
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return v
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# About QRect conversion:
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# I think Qt supports putting basic structures like QRect directly in QSettings, but I prefer not
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# to rely on it and stay with generic structures.
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class Preferences:
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def __init__(self):
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self.reset()
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self._settings = QSettings()
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def _load_values(self, settings, get):
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pass
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def get_rect(self, name, default=None):
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r = self.get_value(name, default)
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if r is not None:
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return QRect(*r)
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else:
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return None
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def get_value(self, name, default=None):
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if self._settings.contains(name):
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result = adjust_after_deserialization(self._settings.value(name))
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if result is not None:
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return result
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else:
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# If result is None, but still present in self._settings, it usually means a value
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# like "@Invalid".
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return default
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else:
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return default
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def load(self):
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self.reset()
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self._load_values(self._settings)
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def reset(self):
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pass
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def _save_values(self, settings, set_):
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pass
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def save(self):
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self._save_values(self._settings)
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self._settings.sync()
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def set_rect(self, name, r):
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if isinstance(r, QRect):
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rectAsList = [r.x(), r.y(), r.width(), r.height()]
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self.set_value(name, rectAsList)
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def set_value(self, name, value):
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self._settings.setValue(name, normalize_for_serialization(value))
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def saveGeometry(self, name, widget):
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# We save geometry under a 5-sized int array: first item is a flag for whether the widget
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# is maximized and the other 4 are (x, y, w, h).
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m = 1 if widget.isMaximized() else 0
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r = widget.geometry()
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rectAsList = [r.x(), r.y(), r.width(), r.height()]
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self.set_value(name, [m] + rectAsList)
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def restoreGeometry(self, name, widget):
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l = self.get_value(name)
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if l and len(l) == 5:
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m, x, y, w, h = l
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if m:
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widget.setWindowState(Qt.WindowMaximized)
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else:
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r = QRect(x, y, w, h)
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widget.setGeometry(r)
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