def ask_add_storage(self, expr: str) -> bool:
try:
# Put the expression into parser to see if it is legal
parse_params(expr)
except Exception as error:
logger.warn(error)
QMessageBox.warning(
self,
"Loading failed",
"Your expression is in an incorrect format."
)
return False
name, ok = QInputDialog.getText(
self,
"Storage",
"Please input name tag:"
)
if not ok:
return False
name_list = [
self.mechanism_storage.item(i).text()
for i in range(self.mechanism_storage.count())
]
i = 0
name = name or f"Prototype_{i}"
while name in name_list:
name = f"Prototype_{i}"
i += 1
self.__add_storage(name, expr)
return True
def parse_expression(self, expr: str) -> None:
"""Parse expression."""
try:
args_list = parse_params(expr)
except LarkError:
QMessageBox.warning(
self,
"Loading failed",
f"Your expression is in an incorrect format."
)
else:
for args in args_list:
links = args.links.split(',')
link_names = {vlink.name for vlink in self.vlink_list}
for link_name in links:
# If link name not exist
if link_name not in link_names:
self.add_link(link_name, 'Blue')
row_count = self.entities_point.rowCount()
self.command_stack.beginMacro(f"Add {{Point{row_count}}}")
self.command_stack.push(AddTable(
self.vpoint_list,
self.entities_point
))
self.command_stack.push(EditPointTable(
row_count,
self.vpoint_list,
self.vlink_list,
self.entities_point,
self.entities_link,
args
))
self.command_stack.endMacro()
