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# Copyright (C) 2006-2007 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import gtk
import cairo
def _grab_pixbuf(window=None):
if not window:
screen = gtk.gdk.screen_get_default()
window = screen.get_root_window()
color_map = gtk.gdk.colormap_get_system()
(x, y, w, h, bpp) = window.get_geometry()
return gtk.gdk.pixbuf_get_from_drawable(None, window, color_map, x, y, 0, 0, w, h)
class OverlayWindow(gtk.Window):
def __init__(self, lower_window):
gtk.Window.__init__(self)
self._lower_window = lower_window
self._img = gtk.Image()
self.add(self._img)
self.realize()
self.window.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DIALOG)
self.window.set_accept_focus(False)
self.window.set_transient_for(lower_window)
self.set_decorated(False)
self.set_position(gtk.WIN_POS_CENTER_ALWAYS)
self.set_default_size(gtk.gdk.screen_width(), gtk.gdk.screen_height())
self.set_app_paintable(True)
# self.connect('expose-event', self._expose_cb)
def appear(self):
pbuf = _grab_pixbuf(self._lower_window)
#pbuf.saturate_and_pixelate(pbuf, 0.5, False)
w = pbuf.get_width()
h = pbuf.get_height()
pbuf2 = pbuf.composite_color_simple(w, h, gtk.gdk.INTERP_NEAREST, 100, 1024, 0, 0)
self._img.set_from_pixbuf(pbuf2)
self.show_all()
def disappear(self):
self._img.set_from_pixbuf(None)
self.hide()
def _expose_cb(self, widget, event):
cr = widget.window.cairo_create()
cr.set_source_rgba(0.0, 0.0, 0.0, 0.4) # Transparent
cr.set_operator(cairo.OPERATOR_SOURCE)
cr.paint()
return False
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