def tableView_objectValueForTableColumn_row_(self, table, column,
row: int):
value = self.interface.data[row]
try:
data = value._impl
except AttributeError:
data = TogaData.alloc().init()
value._impl = data
data.attrs = {
attr: attr_impl(value, attr, self.interface.factory)
for attr in value._attrs
}
return data
def outlineView_child_ofItem_(self, tree, child: int, item):
# Get the object representing the row
if item is None:
node = self.interface.data[child]
else:
node = item.attrs['node'][child]
# Get the Cocoa implementation for the row. If an _impl
# doesn't exist, create a data object for it, and
# populate it with initial values for each column.
try:
node_impl = node._impl
except AttributeError:
node_impl = TogaData.alloc().init()
node_impl.attrs = {'node': node}
node._impl = node_impl
return node_impl
def outlineView_objectValueForTableColumn_byItem_(self, tree, column,
item):
col_identifier = self._impl.column_identifiers[id(column.identifier)]
try:
value = getattr(item.attrs['node'], col_identifier)
# Allow for an (icon, value) tuple as the simple case
# for encoding an icon in a table cell. Otherwise, look
# for an icon attribute.
if isinstance(value, tuple):
icon_iface, value = value
else:
# If the value has an icon attribute, get the _impl.
# Icons are deferred resources, so we bind to the factory.
try:
icon = value.icon.bind(self.interface.factory)
except AttributeError:
icon_iface = None
except AttributeError:
# If the node doesn't have a property with the
# accessor name, assume an empty string value.
value = ''
icon_iface = None
# If the value has an icon, get the _impl.
# Icons are deferred resources, so we provide the factory.
if icon_iface:
icon = icon_iface.bind(self.interface.factory)
else:
icon = None
# Now construct the data object for the cell.
# If the datum already exists, reuse and update it.
# If an icon is present, create a TogaData object.
# Otherwise, just use the string (because a Python string)
# is transparently an ObjC object, so it works as a value.
obj = item.attrs['values'][col_identifier]
if obj is None or isinstance(obj, str):
if icon:
# Create a TogaData value
obj = TogaData.alloc().init()
obj.attrs = {
'label': str(value),
'icon': icon,
}
else:
# Create/Update the string value
obj = str(value)
item.attrs['values'][col_identifier] = obj
else:
# Datum exists, and is currently an icon.
if icon:
# Update TogaData values
obj.attrs = {
'label': str(value),
'icon': icon,
}
else:
# Convert to a simple string.
obj = str(value)
item.attrs['values'][col_identifier] = obj
return obj