cola/qtcompat.py

   1 from __future__ import division, absolute_import, unicode_literals
   2
   3 from PyQt4 import QtGui
   4 from PyQt4 import QtCore
   5
   6
   7 def patch(obj, attr, value):
   8     if not hasattr(obj, attr):
   9         setattr(obj, attr, value)
  10
  11
  12 def install():
  13     set_contents_margins = lambda self, *args: self.setMargin(max(args))
  14     patch(QtGui.QHBoxLayout, 'setContentsMargins', set_contents_margins)
  15     patch(QtGui.QVBoxLayout, 'setContentsMargins', set_contents_margins)
  16
  17     set_margin = lambda self, x: self.setContentsMargins(x, x, x, x)
  18     patch(QtGui.QHBoxLayout, 'setMargin', set_margin)
  19     patch(QtGui.QVBoxLayout, 'setMargin', set_margin)
  20
  21     patch(QtGui.QKeySequence, 'Preferences', 'Ctrl+,')
  22     patch(QtGui.QGraphicsItem, 'mapRectToScene', _map_rect_to_scene)
  23
  24
  25 def add_search_path(prefix, path):
  26     if hasattr(QtCore.QDir, 'addSearchPath'):
  27         QtCore.QDir.addSearchPath(prefix, path)
  28
  29 def set_common_dock_options(window):
  30     if not hasattr(window, 'setDockOptions'):
  31         return
  32     nested = QtGui.QMainWindow.AllowNestedDocks
  33     tabbed = QtGui.QMainWindow.AllowTabbedDocks
  34     animated = QtGui.QMainWindow.AnimatedDocks
  35     window.setDockOptions(nested | tabbed | animated)
  36
  37
  38 def _map_rect_to_scene(self, rect):
  39     """Only available in newer PyQt4 versions"""
  40     return self.sceneTransform().mapRect(rect)