cola/app.py

   1 # Copyright (C) 2009, David Aguilar <davvid@gmail.com>
   2 """Provides the cola QApplication subclass"""
   3 # style note: we use camelCase here since we're masquerading a Qt class
   4
   5 import os
   6
   7 from PyQt4 import QtCore
   8 from PyQt4 import QtGui
   9
  10 from cola import utils
  11 from cola import resources
  12 from cola import i18n
  13 from cola.decorators import memoize
  14
  15
  16 @memoize
  17 def instance(argv):
  18    return QtGui.QApplication(list(argv))
  19
  20
  21 class ColaApplication(object):
  22     """The main cola application
  23
  24     ColaApplication handles i18n of user-visible data
  25     """
  26
  27     def __init__(self, argv, locale=None, gui=True):
  28         """Initialize our QApplication for translation
  29         """
  30         if locale:
  31             os.environ['LANG'] = locale
  32             i18n.install()
  33
  34         # monkey-patch Qt's translate() to use our translate()
  35         if gui:
  36             self._app = instance(tuple(argv))
  37             self._app.setWindowIcon(QtGui.QIcon(resources.icon('git.svg')))
  38             self._translate_base = QtGui.QApplication.translate
  39             QtGui.QApplication.translate = self.translate
  40         else:
  41             self._app = QtCore.QCoreApplication(argv)
  42             self._translate_base = QtCore.QCoreApplication.translate
  43             QtCore.QCoreApplication.translate = self.translate
  44
  45     def translate(self, context, txt):
  46         """
  47         Translate strings with gettext
  48
  49         Supports @@noun/@@verb specifiers.
  50
  51         """
  52         trtxt = i18n.gettext(txt)
  53         if trtxt[-6:-4] == '@@': # handle @@verb / @@noun
  54             trtxt = trtxt[:-6]
  55         return trtxt
  56
  57     def activeWindow(self):
  58         """Wrap activeWindow()"""
  59         return self._app.activeWindow()
  60
  61     def exec_(self):
  62         """Wrap exec_()"""
  63         return self._app.exec_()
  64
  65     def setStyleSheet(self, txt):
  66         """Wrap setStyleSheet(txt)"""
  67         return self._app.setStyleSheet(txt)