def _setup_manager(self):
""" Setup the layout manager.
This method will create or reset the layout manager and update
it with a new layout table.
"""
# Layout ownership can only be transferred *after* the init
# layout method is called, as layout occurs bottom up. The
# manager is only created if ownership is unlikely to change.
share_layout = self.declaration.share_layout
if share_layout and isinstance(self.parent(), QtContainer):
del self._layout_timer
del self._layout_manager
return
manager = self._layout_manager
if manager is None:
item = QtContainerItem()
item.declaration = self.declaration
item.widget_item = QWidgetItem(self.widget)
item.origin = LayoutPoint()
item.offset = LayoutPoint()
item.margins_func = self.margins_func
manager = self._layout_manager = LayoutManager(item)
manager.set_items(self._create_layout_items())
def init_cns_layout(self):
""" Initialize the constraints layout.
"""
# Layout ownership can only be transferred *after* this init
# layout method is called, since layout occurs bottom up. So,
# we only initialize a layout manager if ownership is unlikely
# to be transferred.
if not self.will_transfer():
offset_table, layout_table = self._build_layout_table()
cns = self._generate_constraints(layout_table)
manager = LayoutManager()
manager.initialize(cns)
self._offset_table = offset_table
self._layout_table = layout_table
self._layout_manager = manager
self._refresh = self._build_refresher(manager)
self._update_sizes()
def init_cns_layout(self):
""" Initialize the constraints layout.
"""
# Layout ownership can only be transferred *after* this init
# layout method is called, since layout occurs bottom up. So,
# we only initialize a layout manager if ownership is unlikely
# to be transferred.
if not self.will_transfer():
offset_table, layout_table = self._build_layout_table()
cns = self._generate_constraints(layout_table)
manager = LayoutManager()
manager.initialize(cns)
self._offset_table = offset_table
self._layout_table = layout_table
self._layout_manager = manager
self._refresh = self._build_refresher(manager)
self._update_sizes()
def init_layout(self):
""" Initializes the layout for the container.
"""
super(QtContainer, self).init_layout()
# Layout ownership can only be transferred *after* this init
# layout method is called, since layout occurs bottom up. So,
# we only initialize a layout manager if we are not going to
# transfer ownership at some point.
if not self.will_transfer():
offset_table, layout_table = self._build_layout_table()
cns = self._generate_constraints(layout_table)
# Initializing the layout manager can fail if the objective
# function is unbounded. We let that failure occur so it can
# be logged. Nothing is stored until it succeeds.
manager = LayoutManager()
manager.initialize(cns)
self._offset_table = offset_table
self._layout_table = layout_table
self._layout_manager = manager
self._refresh = self._build_refresher(manager)
self.refresh_sizes()
def init_layout(self):
""" Initializes the layout for the container.
"""
super(QtContainer, self).init_layout()
# Layout ownership can only be transferred *after* this init
# layout method is called, since layout occurs bottom up. So,
# we only initialize a layout manager if we are not going to
# transfer ownership at some point.
if not self.will_transfer():
offset_table, layout_table = self._build_layout_table()
cns = self._generate_constraints(layout_table)
# Initializing the layout manager can fail if the objective
# function is unbounded. We let that failure occur so it can
# be logged. Nothing is stored until it succeeds.
manager = LayoutManager()
manager.initialize(cns)
self._offset_table = offset_table
self._layout_table = layout_table
self._layout_manager = manager
self._refresh = self._build_refresher(manager)
self.refresh_sizes()
