/usr/share/pyshared/jarabe/desktop/snowflakelayout.py is in python-jarabe-0.98 0.98.8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 | # 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 math
from gi.repository import Gtk
from gi.repository import Gdk
from sugar3.graphics import style
_BASE_DISTANCE = style.zoom(25)
_CHILDREN_FACTOR = style.zoom(3)
class SnowflakeLayout(Gtk.Container):
__gtype_name__ = 'SugarSnowflakeLayout'
def __init__(self):
Gtk.Container.__init__(self)
self.set_has_window(False)
self._nflakes = 0
self._children = {}
def do_realize(self):
self.set_realized(True)
self.set_window(self.get_parent_window())
for child in self._children.keys():
child.set_parent_window(self.get_parent_window())
self.queue_resize()
def do_add(self, child):
if child.get_realized():
child.set_parent_window(self.get_parent_window())
child.set_parent(self)
def do_forall(self, include_internals, callback):
for child in self._children.keys():
callback(child)
def do_remove(self, child):
child.unparent()
def add_icon(self, child, center=False):
if not center:
self._nflakes += 1
self._children[child] = center
self.add(child)
def remove(self, child):
if not child in self._children:
return
if not self._children[child]: # not centered
self._nflakes -= 1
del self._children[child]
self.remove(child)
def do_get_preferred_size(self):
size = self._calculate_size()
requisition = Gtk.Requisition()
requisition.width = size
requisition.height = size
return (requisition, requisition)
def do_get_preferred_width(self):
size = self._calculate_size()
return (size, size)
def do_get_preferred_height(self):
size = self._calculate_size()
return (size, size)
def do_size_allocate(self, allocation):
self.set_allocation(allocation)
r = self._get_radius()
index = 0
for child, centered in self._children.items():
child_request = child.size_request()
child_width, child_height = \
child_request.width, child_request.height
rect = Gdk.Rectangle()
rect.x = 0
rect.y = 0
rect.width = child_width
rect.height = child_height
width = allocation.width - child_width
height = allocation.height - child_height
if centered:
rect.x = allocation.x + width / 2
rect.y = allocation.y + height / 2
else:
angle = 2 * math.pi * index / self._nflakes
if self._nflakes != 2:
angle -= math.pi / 2
dx = math.cos(angle) * r
dy = math.sin(angle) * r
rect.x = int(allocation.x + width / 2 + dx)
rect.y = int(allocation.y + height / 2 + dy)
index += 1
child.size_allocate(rect)
def _get_radius(self):
radius = int(_BASE_DISTANCE + _CHILDREN_FACTOR * self._nflakes)
for child, centered in self._children.items():
if centered:
child_request = child.size_request()
child_width, child_height = \
child_request.width, child_request.height
radius += max(child_width, child_height) / 2
return radius
def _calculate_size(self):
thickness = 0
for child in self._children.keys():
child_request = child.size_request()
child_width, child_height = \
child_request.width, child_request.height
thickness = max(thickness, max(child_width, child_height))
return self._get_radius() * 2 + thickness
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