def handle_edge_release(self, _event: tk.Event) -> None:
edge = self.drawing_edge
self.drawing_edge = None
# not drawing edge return
if edge is None:
return
# edge dst must be a node
logging.debug("current selected: %s", self.selected)
src_node = self.nodes.get(edge.src)
dst_node = self.nodes.get(self.selected)
if not dst_node or not src_node:
edge.delete()
return
# edge dst is same as src, delete edge
if edge.src == self.selected:
edge.delete()
return
# ignore repeated edges
token = create_edge_token(edge.src, self.selected)
if token in self.edges:
edge.delete()
return
# rj45 nodes can only support one link
if NodeUtils.is_rj45_node(src_node.core_node.type) and src_node.edges:
edge.delete()
return
if NodeUtils.is_rj45_node(dst_node.core_node.type) and dst_node.edges:
edge.delete()
return
# set dst node and snap edge to center
edge.complete(self.selected)
self.edges[edge.token] = edge
src_node.edges.add(edge)
dst_node.edges.add(edge)
self.core.create_link(edge, src_node, dst_node)
def handle_edge_release(self, _event: tk.Event) -> None:
edge = self.drawing_edge
self.drawing_edge = None
# not drawing edge return
if edge is None:
return
# edge dst must be a node
logging.debug("current selected: %s", self.selected)
src_node = self.nodes.get(edge.src)
dst_node = self.nodes.get(self.selected)
if not dst_node or not src_node:
edge.delete()
return
# edge dst is same as src, delete edge
if edge.src == self.selected:
edge.delete()
return
# rj45 nodes can only support one link
if NodeUtils.is_rj45_node(src_node.core_node.type) and src_node.edges:
edge.delete()
return
if NodeUtils.is_rj45_node(dst_node.core_node.type) and dst_node.edges:
edge.delete()
return
# only 1 link between bridge based nodes
is_src_bridge = NodeUtils.is_bridge_node(src_node.core_node)
is_dst_bridge = NodeUtils.is_bridge_node(dst_node.core_node)
common_links = src_node.edges & dst_node.edges
if all([is_src_bridge, is_dst_bridge, common_links]):
edge.delete()
return
# finalize edge creation
self.complete_edge(src_node, dst_node, edge)
def draw(self) -> None:
self.top.columnconfigure(0, weight=1)
row = 0
# field states
state = tk.DISABLED if self.app.core.is_runtime() else tk.NORMAL
combo_state = tk.DISABLED if self.app.core.is_runtime() else "readonly"
# field frame
frame = ttk.Frame(self.top)
frame.grid(sticky=tk.EW)
frame.columnconfigure(1, weight=1)
# icon field
label = ttk.Label(frame, text="Icon")
label.grid(row=row, column=0, sticky=tk.EW, padx=PADX, pady=PADY)
self.image_button = ttk.Button(
frame,
text="Icon",
image=self.image,
compound=tk.NONE,
command=self.click_icon,
)
self.image_button.grid(row=row, column=1, sticky=tk.EW)
row += 1
# name field
label = ttk.Label(frame, text="Name")
label.grid(row=row, column=0, sticky=tk.EW, padx=PADX, pady=PADY)
entry = validation.NodeNameEntry(frame,
textvariable=self.name,
state=state)
entry.grid(row=row, column=1, sticky=tk.EW)
row += 1
# node type field
if NodeUtils.is_model_node(self.node.type):
label = ttk.Label(frame, text="Type")
label.grid(row=row, column=0, sticky=tk.EW, padx=PADX, pady=PADY)
combobox = ttk.Combobox(
frame,
textvariable=self.type,
values=list(NodeUtils.NODE_MODELS),
state=combo_state,
)
combobox.grid(row=row, column=1, sticky=tk.EW)
row += 1
# container image field
if NodeUtils.is_image_node(self.node.type):
label = ttk.Label(frame, text="Image")
label.grid(row=row, column=0, sticky=tk.EW, padx=PADX, pady=PADY)
entry = ttk.Entry(frame,
textvariable=self.container_image,
state=state)
entry.grid(row=row, column=1, sticky=tk.EW)
row += 1
if NodeUtils.is_container_node(self.node.type):
# server
frame.grid(sticky=tk.EW)
frame.columnconfigure(1, weight=1)
label = ttk.Label(frame, text="Server")
label.grid(row=row, column=0, sticky=tk.EW, padx=PADX, pady=PADY)
servers = ["localhost"]
servers.extend(list(sorted(self.app.core.servers.keys())))
combobox = ttk.Combobox(frame,
textvariable=self.server,
values=servers,
state=combo_state)
combobox.grid(row=row, column=1, sticky=tk.EW)
row += 1
if NodeUtils.is_rj45_node(self.node.type):
response = self.app.core.client.get_ifaces()
logging.debug("host machine available interfaces: %s", response)
ifaces = ListboxScroll(frame)
ifaces.listbox.config(state=state)
ifaces.grid(row=row,
column=0,
columnspan=2,
sticky=tk.EW,
padx=PADX,
pady=PADY)
for inf in sorted(response.ifaces[:]):
ifaces.listbox.insert(tk.END, inf)
row += 1
ifaces.listbox.bind("<<ListboxSelect>>", self.iface_select)
# interfaces
if self.canvas_node.ifaces:
self.draw_ifaces()
self.draw_spacer()
self.draw_buttons()
def draw(self):
self.top.columnconfigure(0, weight=1)
row = 0
# field frame
frame = ttk.Frame(self.top)
frame.grid(sticky="ew")
frame.columnconfigure(1, weight=1)
# icon field
label = ttk.Label(frame, text="Icon")
label.grid(row=row, column=0, sticky="ew", padx=PADX, pady=PADY)
self.image_button = ttk.Button(
frame,
text="Icon",
image=self.image,
compound=tk.NONE,
command=self.click_icon,
)
self.image_button.grid(row=row, column=1, sticky="ew")
row += 1
# name field
label = ttk.Label(frame, text="Name")
label.grid(row=row, column=0, sticky="ew", padx=PADX, pady=PADY)
entry = ttk.Entry(
frame,
textvariable=self.name,
validate="key",
validatecommand=(self.app.validation.name, "%P"),
)
entry.bind(
"<FocusOut>",
lambda event: self.app.validation.focus_out(event, "noname"))
entry.grid(row=row, column=1, sticky="ew")
row += 1
# node type field
if NodeUtils.is_model_node(self.node.type):
label = ttk.Label(frame, text="Type")
label.grid(row=row, column=0, sticky="ew", padx=PADX, pady=PADY)
combobox = ttk.Combobox(
frame,
textvariable=self.type,
values=list(NodeUtils.NODE_MODELS),
state="readonly",
)
combobox.grid(row=row, column=1, sticky="ew")
row += 1
# container image field
if NodeUtils.is_image_node(self.node.type):
label = ttk.Label(frame, text="Image")
label.grid(row=row, column=0, sticky="ew", padx=PADX, pady=PADY)
entry = ttk.Entry(frame, textvariable=self.container_image)
entry.grid(row=row, column=1, sticky="ew")
row += 1
if NodeUtils.is_container_node(self.node.type):
# server
frame.grid(sticky="ew")
frame.columnconfigure(1, weight=1)
label = ttk.Label(frame, text="Server")
label.grid(row=row, column=0, sticky="ew", padx=PADX, pady=PADY)
servers = ["localhost"]
servers.extend(list(sorted(self.app.core.servers.keys())))
combobox = ttk.Combobox(frame,
textvariable=self.server,
values=servers,
state="readonly")
combobox.grid(row=row, column=1, sticky="ew")
row += 1
if NodeUtils.is_rj45_node(self.node.type):
response = self.app.core.client.get_interfaces()
logging.debug("host machine available interfaces: %s", response)
interfaces = ListboxScroll(frame)
interfaces.grid(row=row,
column=0,
columnspan=2,
sticky="ew",
padx=PADX,
pady=PADY)
for inf in sorted(response.interfaces[:]):
interfaces.listbox.insert(tk.END, inf)
row += 1
interfaces.listbox.bind("<<ListboxSelect>>", self.interface_select)
# interfaces
if self.canvas_node.interfaces:
self.draw_interfaces()
self.draw_spacer()
self.draw_buttons()