/usr/share/pyshared/jarabe/view/pulsingicon.py is in python-jarabe-0.96 0.96.1-2.1git1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 | # Copyright (C) 2008 One Laptop Per Child
#
# 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
import gobject
from sugar.graphics.icon import Icon, CanvasIcon
from sugar.graphics import style
_INTERVAL = 100
_STEP = math.pi / 10 # must be a fraction of pi, for clean caching
_MINIMAL_ALPHA_VALUE = 0.33
class Pulser(object):
def __init__(self, icon):
self._pulse_hid = None
self._icon = icon
self._phase = 0
self._start_scale = 1.0
self._end_scale = 1.0
self._zoom_steps = 1
self._current_zoom_step = 1
self._current_scale_step = 1
def set_zooming(self, start_scale, end_scale, zoom_steps):
""" Set start and end scale and number of steps in zoom animation """
self._start_scale = start_scale
self._end_scale = end_scale
self._zoom_steps = zoom_steps
self._current_scale_step = abs(self._start_scale - self._end_scale) / \
self._zoom_steps
self._icon.scale = self._start_scale
def start(self, restart=False):
if restart:
self._phase = 0
if self._pulse_hid is None:
self._pulse_hid = gobject.timeout_add(_INTERVAL, self.__pulse_cb)
if self._start_scale != self._end_scale:
self._icon.scale = self._start_scale + \
self._current_scale_step * self._current_zoom_step
def stop(self):
if self._pulse_hid is not None:
gobject.source_remove(self._pulse_hid)
self._pulse_hid = None
self._icon.xo_color = self._icon.get_base_color()
self._phase = 0
self._icon.alpha = 1.0
def update(self):
self._icon.xo_color = self._icon.base_color
self._icon.alpha = _MINIMAL_ALPHA_VALUE + \
(1 - _MINIMAL_ALPHA_VALUE) * (math.cos(self._phase) + 1) / 2
def __pulse_cb(self):
self._phase += _STEP
if self._current_zoom_step <= self._zoom_steps and \
self._start_scale != self._end_scale:
self._icon.scale = self._start_scale + \
self._current_scale_step * self._current_zoom_step
self._current_zoom_step += 1
self.update()
return True
class PulsingIcon(Icon):
__gtype_name__ = 'SugarPulsingIcon'
def __init__(self, **kwargs):
self._pulser = Pulser(self)
self._base_color = None
self._pulse_color = None
self._paused = False
self._pulsing = False
Icon.__init__(self, **kwargs)
self._palette = None
self.connect('destroy', self.__destroy_cb)
def set_pulse_color(self, pulse_color):
self._pulse_color = pulse_color
self._pulser.update()
def get_pulse_color(self):
return self._pulse_color
pulse_color = gobject.property(
type=object, getter=get_pulse_color, setter=set_pulse_color)
def set_base_color(self, base_color):
self._base_color = base_color
self._pulser.update()
def get_base_color(self):
return self._base_color
def set_zooming(self, start_size=style.SMALL_ICON_SIZE,
end_size=style.XLARGE_ICON_SIZE,
zoom_steps=10):
if start_size > end_size:
start_scale = 1.0
end_scale = float(end_size) / start_size
else:
start_scale = float(start_size) / end_size
end_scale = 1.0
self._pulser.set_zooming(start_scale, end_scale, zoom_steps)
base_color = gobject.property(
type=object, getter=get_base_color, setter=set_base_color)
def set_paused(self, paused):
self._paused = paused
if self._paused:
self._pulser.stop()
else:
self._pulser.start(restart=False)
def get_paused(self):
return self._paused
paused = gobject.property(
type=bool, default=False, getter=get_paused, setter=set_paused)
def set_pulsing(self, pulsing):
self._pulsing = pulsing
if self._pulsing:
self._pulser.start(restart=True)
else:
self._pulser.stop()
def get_pulsing(self):
return self._pulsing
pulsing = gobject.property(
type=bool, default=False, getter=get_pulsing, setter=set_pulsing)
def _get_palette(self):
return self._palette
def _set_palette(self, palette):
if self._palette is not None:
self._palette.props.invoker = None
self._palette = palette
palette = property(_get_palette, _set_palette)
def __destroy_cb(self, icon):
self._pulser.stop()
if self._palette is not None:
self._palette.destroy()
class CanvasPulsingIcon(CanvasIcon):
__gtype_name__ = 'SugarCanvasPulsingIcon'
def __init__(self, **kwargs):
self._pulser = Pulser(self)
self._base_color = None
self._pulse_color = None
self._paused = False
self._pulsing = False
CanvasIcon.__init__(self, **kwargs)
self.connect('destroy', self.__destroy_cb)
def __destroy_cb(self, box):
self._pulser.stop()
def set_pulse_color(self, pulse_color):
self._pulse_color = pulse_color
self._pulser.update()
def get_pulse_color(self):
return self._pulse_color
pulse_color = gobject.property(
type=object, getter=get_pulse_color, setter=set_pulse_color)
def set_base_color(self, base_color):
self._base_color = base_color
self._pulser.update()
def get_base_color(self):
return self._base_color
base_color = gobject.property(
type=object, getter=get_base_color, setter=set_base_color)
def set_paused(self, paused):
self._paused = paused
if self._paused:
self._pulser.stop()
elif self._pulsing:
self._pulser.start(restart=False)
def get_paused(self):
return self._paused
paused = gobject.property(
type=bool, default=False, getter=get_paused, setter=set_paused)
def set_pulsing(self, pulsing):
self._pulsing = pulsing
if self._paused:
return
if self._pulsing:
self._pulser.start(restart=True)
else:
self._pulser.stop()
def get_pulsing(self):
return self._pulsing
pulsing = gobject.property(
type=bool, default=False, getter=get_pulsing, setter=set_pulsing)
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