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# Slideshow Shuffle Plugin for Eye of GNOME
# Copyright (C) 2008 Johannes Marbach <jm@rapidrabbit.de>
#
# 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
from gi.repository import GObject, Gtk, Eog
import random
class SlideshowShufflePlugin(GObject.Object, Eog.WindowActivatable):
# Override EogWindowActivatable's window property
window = GObject.property(type=Eog.Window)
def __init__(self):
GObject.Object.__init__(self)
def do_activate(self):
random.seed()
self.slideshow = False
self.state_handler_id = \
self.window.connect('window-state-event', self.state_changed_cb, self)
def do_deactivate(self):
self.window.disconnect(self.state_handler_id)
# The callback functions are done statically to avoid causing additional
# references on the window property causing eog to not quit correctly.
@staticmethod
def state_changed_cb(window, event, self):
mode = self.window.get_mode()
if mode == Eog.WindowMode.SLIDESHOW and not self.slideshow:
# Slideshow starts
self.slideshow = True
# Query position of current image
if not window.get_image():
pos = 0
else:
pos = window.get_store().get_pos_by_image(window.get_image())
# Generate random map
uri_list = [row[2].get_uri_for_display() \
for row in window.get_store()]
self.map = {uri_list.pop(pos): 0}
supply = list(range(1, len(uri_list) + 1))
for uri in uri_list:
self.map[uri] = supply.pop(random.randint(0, len(supply) - 1))
# Put random sort function in place
self.window.get_store().\
set_default_sort_func(self.random_sort_function, self)
elif mode == Eog.WindowMode.NORMAL and self.slideshow:
# Slideshow ends
self.slideshow = False
# Put alphabetic sort function in place
self.window.get_store().\
set_default_sort_func(self.alphabetic_sort_function)
@staticmethod
def random_sort_function(store, iter1, iter2, self):
pos1 = self.map[store[iter1][2].get_uri_for_display()]
pos2 = self.map[store[iter2][2].get_uri_for_display()]
if pos1 > pos2:
return 1
elif pos1 < pos2:
return -1
else:
return 0
@staticmethod
def alphabetic_sort_function(store, iter1, iter2, data = None):
uri1 = store[iter1][2].get_uri_for_display().lower()
uri2 = store[iter2][2].get_uri_for_display().lower()
if uri1 > uri2:
return 1
elif uri1 < uri2:
return -1
else:
return 0
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