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# -*- Mode: Python; py-indent-offset: 4 -*-
# vim: tabstop=4 shiftwidth=4 expandtab
#
# Copyright (C) 2011-2012 Johan Dahlin <johan@gnome.org>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
# USA
"""
PyGTK compatibility layer.
This modules goes a little bit longer to maintain PyGTK compatibility than
the normal overrides system.
It is recommended to not depend on this layer, but only use it as an
intermediate step when porting your application to PyGI.
Compatibility might never be 100%, but the aim is to make it possible to run
a well behaved PyGTK application mostly unmodified on top of PyGI.
"""
import sys
import warnings
try:
# Python 3
from collections import UserList
UserList # pyflakes
with warnings.catch_warnings():
warnings.simplefilter('ignore')
from imp import reload
except ImportError:
# Python 2 ships that in a different module
from UserList import UserList
UserList # pyflakes
import gi
from gi.repository import GObject
_patches = []
_module_patches = []
_unset = object()
_enabled_registry = {}
def _patch(obj, name, new_value):
old_value = getattr(obj, name, _unset)
setattr(obj, name, new_value)
_patches.append((obj, name, old_value))
def _patch_module(name, new_value):
old_value = sys.modules.get(name, _unset)
sys.modules[name] = new_value
_module_patches.append((name, old_value))
def _install_enums(module, dest=None, strip=''):
if dest is None:
dest = module
modname = dest.__name__.rsplit('.', 1)[1].upper()
for attr in dir(module):
try:
obj = getattr(module, attr, None)
except:
continue
try:
if issubclass(obj, GObject.GEnum):
for value, enum in obj.__enum_values__.items():
name = enum.value_name
name = name.replace(modname + '_', '')
if strip and name.startswith(strip):
name = name[len(strip):]
_patch(dest, name, enum)
except TypeError:
continue
try:
if issubclass(obj, GObject.GFlags):
for value, flag in obj.__flags_values__.items():
try:
name = flag.value_names[-1].replace(modname + '_', '')
except IndexError:
# FIXME: this happens for some large flags which do not
# fit into a long on 32 bit systems
continue
_patch(dest, name, flag)
except TypeError:
continue
def _check_enabled(name, version=None):
"""Returns True in case it is already enabled"""
if name in _enabled_registry:
enabled_version = _enabled_registry[name]
if enabled_version != version:
raise ValueError(
"%r already enabled with different version (%r)" % (
name, enabled_version))
return True
else:
_enabled_registry[name] = version
return False
def enable():
if _check_enabled(""):
return
# gobject
from gi.repository import GLib
_patch_module('glib', GLib)
# gobject
from gi.repository import GObject
_patch_module('gobject', GObject)
from gi import _propertyhelper
_patch_module('gobject.propertyhelper', _propertyhelper)
# gio
from gi.repository import Gio
_patch_module('gio', Gio)
def _disable_all():
"""Reverse all effects of the enable_xxx() calls except for
require_version() calls and imports.
"""
_enabled_registry.clear()
for obj, name, old_value in reversed(_patches):
if old_value is _unset:
delattr(obj, name)
else:
# try if deleting is enough (for override proxies)
delattr(obj, name)
if getattr(obj, name, _unset) is not old_value:
setattr(obj, name, old_value)
del _patches[:]
for name, old_value in reversed(_module_patches):
if old_value is _unset:
del sys.modules[name]
else:
sys.modules[name] = old_value
del _module_patches[:]
reload(sys)
if sys.version_info < (3, 0):
sys.setdefaultencoding('ascii')
def enable_gtk(version='3.0'):
if _check_enabled("gtk", version):
return
if version == "4.0":
raise ValueError("version 4.0 not supported")
# set the default encoding like PyGTK
reload(sys)
if sys.version_info < (3, 0):
sys.setdefaultencoding('utf-8')
# atk
gi.require_version('Atk', '1.0')
from gi.repository import Atk
_patch_module('atk', Atk)
_install_enums(Atk)
# pango
gi.require_version('Pango', '1.0')
from gi.repository import Pango
_patch_module('pango', Pango)
_install_enums(Pango)
# pangocairo
gi.require_version('PangoCairo', '1.0')
from gi.repository import PangoCairo
_patch_module('pangocairo', PangoCairo)
# gdk
gi.require_version('Gdk', version)
gi.require_version('GdkPixbuf', '2.0')
from gi.repository import Gdk
from gi.repository import GdkPixbuf
_patch_module('gtk.gdk', Gdk)
_install_enums(Gdk)
_install_enums(GdkPixbuf, dest=Gdk)
_patch(Gdk, "_2BUTTON_PRESS", 5)
_patch(Gdk, "BUTTON_PRESS", 4)
_patch(Gdk, "screen_get_default", Gdk.Screen.get_default)
_patch(Gdk, "Pixbuf", GdkPixbuf.Pixbuf)
_patch(Gdk, "PixbufLoader", GdkPixbuf.PixbufLoader.new_with_type)
_patch(Gdk, "pixbuf_new_from_data", GdkPixbuf.Pixbuf.new_from_data)
_patch(Gdk, "pixbuf_new_from_file", GdkPixbuf.Pixbuf.new_from_file)
try:
_patch(Gdk, "pixbuf_new_from_file_at_scale", GdkPixbuf.Pixbuf.new_from_file_at_scale)
except AttributeError:
pass
_patch(Gdk, "pixbuf_new_from_file_at_size", GdkPixbuf.Pixbuf.new_from_file_at_size)
_patch(Gdk, "pixbuf_new_from_inline", GdkPixbuf.Pixbuf.new_from_inline)
_patch(Gdk, "pixbuf_new_from_stream", GdkPixbuf.Pixbuf.new_from_stream)
_patch(Gdk, "pixbuf_new_from_stream_at_scale", GdkPixbuf.Pixbuf.new_from_stream_at_scale)
_patch(Gdk, "pixbuf_new_from_xpm_data", GdkPixbuf.Pixbuf.new_from_xpm_data)
_patch(Gdk, "pixbuf_get_file_info", GdkPixbuf.Pixbuf.get_file_info)
orig_get_formats = GdkPixbuf.Pixbuf.get_formats
def get_formats():
formats = orig_get_formats()
result = []
def make_dict(format_):
result = {}
result['description'] = format_.get_description()
result['name'] = format_.get_name()
result['mime_types'] = format_.get_mime_types()
result['extensions'] = format_.get_extensions()
return result
for format_ in formats:
result.append(make_dict(format_))
return result
_patch(Gdk, "pixbuf_get_formats", get_formats)
orig_get_frame_extents = Gdk.Window.get_frame_extents
def get_frame_extents(window):
try:
try:
rect = Gdk.Rectangle(0, 0, 0, 0)
except TypeError:
rect = Gdk.Rectangle()
orig_get_frame_extents(window, rect)
except TypeError:
rect = orig_get_frame_extents(window)
return rect
_patch(Gdk.Window, "get_frame_extents", get_frame_extents)
orig_get_origin = Gdk.Window.get_origin
def get_origin(self):
return orig_get_origin(self)[1:]
_patch(Gdk.Window, "get_origin", get_origin)
_patch(Gdk, "screen_width", Gdk.Screen.width)
_patch(Gdk, "screen_height", Gdk.Screen.height)
orig_gdk_window_get_geometry = Gdk.Window.get_geometry
def gdk_window_get_geometry(window):
return orig_gdk_window_get_geometry(window) + (window.get_visual().get_best_depth(),)
_patch(Gdk.Window, "get_geometry", gdk_window_get_geometry)
# gtk
gi.require_version('Gtk', version)
from gi.repository import Gtk
_patch_module('gtk', Gtk)
_patch(Gtk, "gdk", Gdk)
_patch(Gtk, "pygtk_version", (2, 99, 0))
_patch(Gtk, "gtk_version", (Gtk.MAJOR_VERSION,
Gtk.MINOR_VERSION,
Gtk.MICRO_VERSION))
_install_enums(Gtk)
# Action
def set_tool_item_type(menuaction, gtype):
warnings.warn('set_tool_item_type() is not supported',
gi.PyGIDeprecationWarning, stacklevel=2)
_patch(Gtk.Action, "set_tool_item_type", classmethod(set_tool_item_type))
# Alignment
orig_Alignment = Gtk.Alignment
class Alignment(orig_Alignment):
def __init__(self, xalign=0.0, yalign=0.0, xscale=0.0, yscale=0.0):
orig_Alignment.__init__(self)
self.props.xalign = xalign
self.props.yalign = yalign
self.props.xscale = xscale
self.props.yscale = yscale
_patch(Gtk, "Alignment", Alignment)
# Box
orig_pack_end = Gtk.Box.pack_end
def pack_end(self, child, expand=True, fill=True, padding=0):
orig_pack_end(self, child, expand, fill, padding)
_patch(Gtk.Box, "pack_end", pack_end)
orig_pack_start = Gtk.Box.pack_start
def pack_start(self, child, expand=True, fill=True, padding=0):
orig_pack_start(self, child, expand, fill, padding)
_patch(Gtk.Box, "pack_start", pack_start)
# TreeViewColumn
orig_tree_view_column_pack_end = Gtk.TreeViewColumn.pack_end
def tree_view_column_pack_end(self, cell, expand=True):
orig_tree_view_column_pack_end(self, cell, expand)
_patch(Gtk.TreeViewColumn, "pack_end", tree_view_column_pack_end)
orig_tree_view_column_pack_start = Gtk.TreeViewColumn.pack_start
def tree_view_column_pack_start(self, cell, expand=True):
orig_tree_view_column_pack_start(self, cell, expand)
_patch(Gtk.TreeViewColumn, "pack_start", tree_view_column_pack_start)
# CellLayout
orig_cell_pack_end = Gtk.CellLayout.pack_end
def cell_pack_end(self, cell, expand=True):
orig_cell_pack_end(self, cell, expand)
_patch(Gtk.CellLayout, "pack_end", cell_pack_end)
orig_cell_pack_start = Gtk.CellLayout.pack_start
def cell_pack_start(self, cell, expand=True):
orig_cell_pack_start(self, cell, expand)
_patch(Gtk.CellLayout, "pack_start", cell_pack_start)
orig_set_cell_data_func = Gtk.CellLayout.set_cell_data_func
def set_cell_data_func(self, cell, func, user_data=_unset):
def callback(*args):
if args[-1] == _unset:
args = args[:-1]
return func(*args)
orig_set_cell_data_func(self, cell, callback, user_data)
_patch(Gtk.CellLayout, "set_cell_data_func", set_cell_data_func)
# CellRenderer
class GenericCellRenderer(Gtk.CellRenderer):
pass
_patch(Gtk, "GenericCellRenderer", GenericCellRenderer)
# ComboBox
orig_combo_row_separator_func = Gtk.ComboBox.set_row_separator_func
def combo_row_separator_func(self, func, user_data=_unset):
def callback(*args):
if args[-1] == _unset:
args = args[:-1]
return func(*args)
orig_combo_row_separator_func(self, callback, user_data)
_patch(Gtk.ComboBox, "set_row_separator_func", combo_row_separator_func)
# ComboBoxEntry
class ComboBoxEntry(Gtk.ComboBox):
def __init__(self, **kwds):
Gtk.ComboBox.__init__(self, has_entry=True, **kwds)
def set_text_column(self, text_column):
self.set_entry_text_column(text_column)
def get_text_column(self):
return self.get_entry_text_column()
_patch(Gtk, "ComboBoxEntry", ComboBoxEntry)
def combo_box_entry_new():
return Gtk.ComboBoxEntry()
_patch(Gtk, "combo_box_entry_new", combo_box_entry_new)
def combo_box_entry_new_with_model(model):
return Gtk.ComboBoxEntry(model=model)
_patch(Gtk, "combo_box_entry_new_with_model", combo_box_entry_new_with_model)
# Container
def install_child_property(container, flag, pspec):
warnings.warn('install_child_property() is not supported',
gi.PyGIDeprecationWarning, stacklevel=2)
_patch(Gtk.Container, "install_child_property", classmethod(install_child_property))
def new_text():
combo = Gtk.ComboBox()
model = Gtk.ListStore(str)
combo.set_model(model)
combo.set_entry_text_column(0)
return combo
_patch(Gtk, "combo_box_new_text", new_text)
def append_text(self, text):
model = self.get_model()
model.append([text])
_patch(Gtk.ComboBox, "append_text", append_text)
_patch(Gtk, "expander_new_with_mnemonic", Gtk.Expander.new_with_mnemonic)
_patch(Gtk, "icon_theme_get_default", Gtk.IconTheme.get_default)
_patch(Gtk, "image_new_from_pixbuf", Gtk.Image.new_from_pixbuf)
_patch(Gtk, "image_new_from_stock", Gtk.Image.new_from_stock)
_patch(Gtk, "image_new_from_animation", Gtk.Image.new_from_animation)
_patch(Gtk, "image_new_from_icon_set", Gtk.Image.new_from_icon_set)
_patch(Gtk, "image_new_from_file", Gtk.Image.new_from_file)
_patch(Gtk, "settings_get_default", Gtk.Settings.get_default)
_patch(Gtk, "window_set_default_icon", Gtk.Window.set_default_icon)
try:
_patch(Gtk, "clipboard_get", Gtk.Clipboard.get)
except AttributeError:
pass
# AccelGroup
_patch(Gtk.AccelGroup, "connect_group", Gtk.AccelGroup.connect)
# StatusIcon
_patch(Gtk, "status_icon_position_menu", Gtk.StatusIcon.position_menu)
_patch(Gtk.StatusIcon, "set_tooltip", Gtk.StatusIcon.set_tooltip_text)
# Scale
orig_HScale = Gtk.HScale
orig_VScale = Gtk.VScale
class HScale(orig_HScale):
def __init__(self, adjustment=None):
orig_HScale.__init__(self, adjustment=adjustment)
_patch(Gtk, "HScale", HScale)
class VScale(orig_VScale):
def __init__(self, adjustment=None):
orig_VScale.__init__(self, adjustment=adjustment)
_patch(Gtk, "VScale", VScale)
_patch(Gtk, "stock_add", lambda items: None)
# Widget
_patch(Gtk.Widget, "window", property(fget=Gtk.Widget.get_window))
_patch(Gtk, "widget_get_default_direction", Gtk.Widget.get_default_direction)
orig_size_request = Gtk.Widget.size_request
def size_request(widget):
class SizeRequest(UserList):
def __init__(self, req):
self.height = req.height
self.width = req.width
UserList.__init__(self, [self.width, self.height])
return SizeRequest(orig_size_request(widget))
_patch(Gtk.Widget, "size_request", size_request)
_patch(Gtk.Widget, "hide_all", Gtk.Widget.hide)
class BaseGetter(object):
def __init__(self, context):
self.context = context
def __getitem__(self, state):
color = self.context.get_background_color(state)
return Gdk.Color(red=int(color.red * 65535),
green=int(color.green * 65535),
blue=int(color.blue * 65535))
class Styles(object):
def __init__(self, widget):
context = widget.get_style_context()
self.base = BaseGetter(context)
self.black = Gdk.Color(red=0, green=0, blue=0)
class StyleDescriptor(object):
def __get__(self, instance, class_):
return Styles(instance)
_patch(Gtk.Widget, "style", StyleDescriptor())
# TextView
orig_text_view_scroll_to_mark = Gtk.TextView.scroll_to_mark
def text_view_scroll_to_mark(self, mark, within_margin,
use_align=False, xalign=0.5, yalign=0.5):
return orig_text_view_scroll_to_mark(self, mark, within_margin,
use_align, xalign, yalign)
_patch(Gtk.TextView, "scroll_to_mark", text_view_scroll_to_mark)
# Window
orig_set_geometry_hints = Gtk.Window.set_geometry_hints
def set_geometry_hints(self, geometry_widget=None,
min_width=-1, min_height=-1, max_width=-1, max_height=-1,
base_width=-1, base_height=-1, width_inc=-1, height_inc=-1,
min_aspect=-1.0, max_aspect=-1.0):
geometry = Gdk.Geometry()
geom_mask = Gdk.WindowHints(0)
if min_width >= 0 or min_height >= 0:
geometry.min_width = max(min_width, 0)
geometry.min_height = max(min_height, 0)
geom_mask |= Gdk.WindowHints.MIN_SIZE
if max_width >= 0 or max_height >= 0:
geometry.max_width = max(max_width, 0)
geometry.max_height = max(max_height, 0)
geom_mask |= Gdk.WindowHints.MAX_SIZE
if base_width >= 0 or base_height >= 0:
geometry.base_width = max(base_width, 0)
geometry.base_height = max(base_height, 0)
geom_mask |= Gdk.WindowHints.BASE_SIZE
if width_inc >= 0 or height_inc >= 0:
geometry.width_inc = max(width_inc, 0)
geometry.height_inc = max(height_inc, 0)
geom_mask |= Gdk.WindowHints.RESIZE_INC
if min_aspect >= 0.0 or max_aspect >= 0.0:
if min_aspect <= 0.0 or max_aspect <= 0.0:
raise TypeError("aspect ratios must be positive")
geometry.min_aspect = min_aspect
geometry.max_aspect = max_aspect
geom_mask |= Gdk.WindowHints.ASPECT
return orig_set_geometry_hints(self, geometry_widget, geometry, geom_mask)
_patch(Gtk.Window, "set_geometry_hints", set_geometry_hints)
_patch(Gtk, "window_list_toplevels", Gtk.Window.list_toplevels)
_patch(Gtk, "window_set_default_icon_name", Gtk.Window.set_default_icon_name)
# gtk.unixprint
class UnixPrint(object):
pass
unixprint = UnixPrint()
_patch_module('gtkunixprint', unixprint)
# gtk.keysyms
with warnings.catch_warnings():
warnings.simplefilter('ignore', category=RuntimeWarning)
from gi.overrides import keysyms
_patch_module('gtk.keysyms', keysyms)
_patch(Gtk, "keysyms", keysyms)
from . import generictreemodel
_patch(Gtk, "GenericTreeModel", generictreemodel.GenericTreeModel)
def enable_vte():
if _check_enabled("vte"):
return
gi.require_version('Vte', '0.0')
from gi.repository import Vte
_patch_module('vte', Vte)
def enable_poppler():
if _check_enabled("poppler"):
return
gi.require_version('Poppler', '0.18')
from gi.repository import Poppler
_patch_module('poppler', Poppler)
_patch(Poppler, "pypoppler_version", (1, 0, 0))
def enable_webkit(version='1.0'):
if _check_enabled("webkit", version):
return
gi.require_version('WebKit', version)
from gi.repository import WebKit
_patch_module('webkit', WebKit)
_patch(WebKit.WebView, "get_web_inspector", WebKit.WebView.get_inspector)
def enable_gudev():
if _check_enabled("gudev"):
return
gi.require_version('GUdev', '1.0')
from gi.repository import GUdev
_patch_module('gudev', GUdev)
def enable_gst():
if _check_enabled("gst"):
return
gi.require_version('Gst', '0.10')
from gi.repository import Gst
_patch_module('gst', Gst)
_install_enums(Gst)
_patch(Gst, "registry_get_default", Gst.Registry.get_default)
_patch(Gst, "element_register", Gst.Element.register)
_patch(Gst, "element_factory_make", Gst.ElementFactory.make)
_patch(Gst, "caps_new_any", Gst.Caps.new_any)
_patch(Gst, "get_pygst_version", lambda: (0, 10, 19))
_patch(Gst, "get_gst_version", lambda: (0, 10, 40))
from gi.repository import GstInterfaces
_patch_module('gst.interfaces', GstInterfaces)
_install_enums(GstInterfaces)
from gi.repository import GstAudio
_patch_module('gst.audio', GstAudio)
_install_enums(GstAudio)
from gi.repository import GstVideo
_patch_module('gst.video', GstVideo)
_install_enums(GstVideo)
from gi.repository import GstBase
_patch_module('gst.base', GstBase)
_install_enums(GstBase)
_patch(Gst, "BaseTransform", GstBase.BaseTransform)
_patch(Gst, "BaseSink", GstBase.BaseSink)
from gi.repository import GstController
_patch_module('gst.controller', GstController)
_install_enums(GstController, dest=Gst)
from gi.repository import GstPbutils
_patch_module('gst.pbutils', GstPbutils)
_install_enums(GstPbutils)
def enable_goocanvas():
if _check_enabled("goocanvas"):
return
gi.require_version('GooCanvas', '2.0')
from gi.repository import GooCanvas
_patch_module('goocanvas', GooCanvas)
_install_enums(GooCanvas, strip='GOO_CANVAS_')
_patch(GooCanvas, "ItemSimple", GooCanvas.CanvasItemSimple)
_patch(GooCanvas, "Item", GooCanvas.CanvasItem)
_patch(GooCanvas, "Image", GooCanvas.CanvasImage)
_patch(GooCanvas, "Group", GooCanvas.CanvasGroup)
_patch(GooCanvas, "Rect", GooCanvas.CanvasRect)