def create_item(self,
component,
coords=(),
item=None,
canvas=None,
silently=False,
**kwargs):
canvas = canvas or self.canvas
if item is None:
opts = dict(**component.defaults)
opts.update(kwargs)
item = component(canvas, *coords, **opts)
# generate a unique id
item.name = self.generator.generate(component, self._ids)
canvas._cv_items.append(item)
item._prev_index = canvas._cv_items.index(item)
node = canvas._cv_tree.add_as_node(item=item)
item.bind("<ButtonRelease-1>", lambda e: self._handle_select(item, e),
True)
item.bind("<ButtonRelease-1>", lambda e: self._handle_end(item, e),
True)
item.bind("<Motion>", lambda e: self._handle_move(item, e), True)
MenuUtils.bind_context(item, self._show_item_menu(item))
MenuUtils.bind_all_context(node, self._show_item_menu(item))
if not silently:
self.studio.new_action(
Action(lambda _: self.remove_items([item], silently=True),
lambda _: self.restore_items([item])))
return item
def on_widget_add(self, widget: PseudoWidget, parent=None):
if parent is None:
node = self._tree.add_as_node(widget=widget)
else:
parent = parent.node
node = parent.add_as_node(widget=widget)
# let the designer render the menu for us
MenuUtils.bind_all_context(
node, lambda e: self.studio.designer.show_menu(e, widget)
if self.studio.designer else None)
def _attach(self, obj):
# bind events for context menu and object selection
# all widget additions call this method so clear empty message
self._show_empty(False)
MenuUtils.bind_all_context(obj,
lambda e: self.show_menu(e, obj),
add='+')
obj.bind_all(
'<Shift-ButtonPress-1>',
lambda e: self.highlight.set_function(self.highlight.move, e),
add='+')
obj.bind_all('<Motion>', self.on_motion, '+')
obj.bind_all('<ButtonRelease>', self.highlight.clear_resize, '+')
if "text" in obj.keys():
obj.bind_all("<Double-Button-1>",
lambda _: self._show_text_editor(obj))
self.objects.append(obj)
if self.root_obj is None:
self.root_obj = obj
obj.bind_all("<Button-1>",
lambda e: self._handle_select(obj, e),
add='+')
# bind shortcuts
self._shortcut_mgr.bind_widget(obj)