class SpreadLayout(gobject.GObject, hippo.CanvasLayout):
__gtype_name__ = 'SugarSpreadLayout'
def __init__(self):
gobject.GObject.__init__(self)
self._box = None
min_width, width = self.do_get_width_request()
min_height, height = self.do_get_height_request(width)
self._grid = Grid(int(width / _CELL_SIZE), int(height / _CELL_SIZE))
self._grid.connect('child-changed', self._grid_child_changed_cb)
def add(self, child):
self._box.append(child)
width, height = self._get_child_grid_size(child)
self._grid.add(child, width, height)
def remove(self, child):
self._grid.remove(child)
self._box.remove(child)
def move(self, child, x, y):
self._grid.move(child, x / _CELL_SIZE, y / _CELL_SIZE, locked=True)
def do_set_box(self, box):
self._box = box
def do_get_height_request(self, for_width):
return 0, gtk.gdk.screen_height() - style.GRID_CELL_SIZE
def do_get_width_request(self):
return 0, gtk.gdk.screen_width()
def do_allocate(self, x, y, width, height,
req_width, req_height, origin_changed):
for child in self._box.get_layout_children():
# We need to always get requests to not confuse hippo
min_w, child_width = child.get_width_request()
min_h, child_height = child.get_height_request(child_width)
rect = self._grid.get_child_rect(child.item)
child.allocate(int(round(rect.x * _CELL_SIZE)),
int(round(rect.y * _CELL_SIZE)),
child_width,
child_height,
origin_changed)
def _get_child_grid_size(self, child):
min_width, width = child.get_width_request()
min_height, height = child.get_height_request(width)
width = math.ceil(width / _CELL_SIZE)
height = math.ceil(height / _CELL_SIZE)
return int(width), int(height)
def _grid_child_changed_cb(self, grid, child):
child.emit_request_changed()
class RandomActivityLayout(ActivityLayout):
"""Lay out icons randomly; try to nudge them around to resolve overlaps."""
__gtype_name__ = 'RandomActivityLayout'
icon_name = 'view-freeform'
"""Name of icon used in home view dropdown palette."""
key = 'random-layout'
"""String used in profile to represent this view."""
# TRANS: label for the freeform layout in the pathway view
palette_name = _('Freeform')
"""String used to identify this layout in home view dropdown palette."""
def __init__(self):
ActivityLayout.__init__(self)
min_width_, width = self.do_get_width_request()
min_height_, height = self.do_get_height_request(width)
self._grid = Grid(width / _CELL_SIZE, height / _CELL_SIZE)
self._grid.connect('child-changed', self.__grid_child_changed_cb)
def __grid_child_changed_cb(self, grid, child):
child.emit_request_changed()
def append(self, icon, locked=False):
ActivityLayout.append(self, icon, locked)
min_width_, child_width = icon.get_width_request()
min_height_, child_height = icon.get_height_request(child_width)
min_width_, width = self.box.get_width_request()
min_height_, height = self.box.get_height_request(width)
if icon in self.fixed_positions:
x, y = self.fixed_positions[icon]
x = min(x, width - child_width)
y = min(y, height - child_height)
elif hasattr(icon, 'get_bundle_id'):
name_hash = hashlib.md5(icon.get_bundle_id())
x = int(name_hash.hexdigest()[:5], 16) % (width - child_width)
y = int(name_hash.hexdigest()[-5:], 16) % (height - child_height)
else:
x = None
y = None
if x is None or y is None:
self._grid.add(icon, child_width / _CELL_SIZE,
child_height / _CELL_SIZE)
else:
self._grid.add(icon, child_width / _CELL_SIZE,
child_height / _CELL_SIZE, x / _CELL_SIZE,
y / _CELL_SIZE)
def remove(self, icon):
self._grid.remove(icon)
ActivityLayout.remove(self, icon)
def move_icon(self, icon, x, y, locked=False):
self._grid.move(icon, x / _CELL_SIZE, y / _CELL_SIZE, locked)
ActivityLayout.move_icon(self, icon, x, y, locked)
def do_allocate(self, x, y, width, height, req_width, req_height,
origin_changed):
for child in self.box.get_layout_children():
# We need to always get requests to not confuse hippo
min_w_, child_width = child.get_width_request()
min_h_, child_height = child.get_height_request(child_width)
rect = self._grid.get_child_rect(child.item)
child.allocate(rect.x * _CELL_SIZE, rect.y * _CELL_SIZE,
child_width, child_height, origin_changed)
def allow_dnd(self):
return True
class RandomLayout(FavoritesLayout):
"""Lay out icons randomly; try to nudge them around to resolve overlaps."""
__gtype_name__ = 'RandomLayout'
icon_name = 'view-freeform'
"""Name of icon used in home view dropdown palette."""
key = 'random-layout'
"""String used in profile to represent this view."""
# TRANS: label for the freeform layout in the favorites view
palette_name = _('Freeform')
"""String used to identify this layout in home view dropdown palette."""
def __init__(self):
FavoritesLayout.__init__(self)
min_width_, width = self.do_get_width_request()
min_height_, height = self.do_get_height_request(width)
self._grid = Grid(width / _CELL_SIZE, height / _CELL_SIZE)
self._grid.connect('child-changed', self.__grid_child_changed_cb)
def __grid_child_changed_cb(self, grid, child):
child.emit_request_changed()
def append(self, icon, locked=False):
FavoritesLayout.append(self, icon, locked)
min_width_, child_width = icon.get_width_request()
min_height_, child_height = icon.get_height_request(child_width)
min_width_, width = self.box.get_width_request()
min_height_, height = self.box.get_height_request(width)
if icon in self.fixed_positions:
x, y = self.fixed_positions[icon]
x = min(x, width - child_width)
y = min(y, height - child_height)
elif hasattr(icon, 'get_bundle_id'):
name_hash = hashlib.md5(icon.get_bundle_id())
x = int(name_hash.hexdigest()[:5], 16) % (width - child_width)
y = int(name_hash.hexdigest()[-5:], 16) % (height - child_height)
else:
x = None
y = None
if x is None or y is None:
self._grid.add(icon,
child_width / _CELL_SIZE, child_height / _CELL_SIZE)
else:
self._grid.add(icon,
child_width / _CELL_SIZE, child_height / _CELL_SIZE,
x / _CELL_SIZE, y / _CELL_SIZE)
def remove(self, icon):
self._grid.remove(icon)
FavoritesLayout.remove(self, icon)
def move_icon(self, icon, x, y, locked=False):
self._grid.move(icon, x / _CELL_SIZE, y / _CELL_SIZE, locked)
FavoritesLayout.move_icon(self, icon, x, y, locked)
def do_allocate(self, x, y, width, height, req_width, req_height,
origin_changed):
for child in self.box.get_layout_children():
# We need to always get requests to not confuse hippo
min_w_, child_width = child.get_width_request()
min_h_, child_height = child.get_height_request(child_width)
rect = self._grid.get_child_rect(child.item)
child.allocate(rect.x * _CELL_SIZE,
rect.y * _CELL_SIZE,
child_width,
child_height,
origin_changed)
def allow_dnd(self):
return True
