Files
Nassi-Shneiderman-Diagramm-…/interpreter/NassiShneidermann.py
2021-01-03 17:12:21 +01:00

75 lines
2.6 KiB
Python

from interpreter.interpret_source import Function_scope
from typing import Dict, List
import logging
from enum import IntEnum
import os.path
import secrets
from draw.Iinstruction import Iinstruction
from interpreter.interpret_source import JavaInterpreter
from draw.code_to_image_wrapper import NSD_writer
import draw.code_to_image as cti
class Overwrite_behaviour(IntEnum):
SKIP = 0
OVERWWRITE = 1
RANDOM_NAME = 2
OB = Overwrite_behaviour
class NassiShneidermanDiagram:
def __init__(self, do_debug: bool):
self.function_scopes: List[Function_scope] = []
self.init_logging(do_debug)
def init_logging(self, debug: bool):
logLevel = logging.INFO
if debug:
logLevel = logging.DEBUG
logging.basicConfig(level=logLevel)
def set_font(self, font_filepath: str):
cti.set_font(font_filepath)
def _save_scope(self, scope: Function_scope, output_path: str, x_size: int):
"""DEBUGING ONLY"""
image_y_sz = scope.get_height()
with NSD_writer(output_path, x_size, image_y_sz):
x, y = 0, 0
for instruction in scope.contents:
x, y = instruction.to_image(x, y, x_size)
def check_conflicts(self, filepath:str, behavoiur: Overwrite_behaviour):
if os.path.exists(filepath + ".png"):
if behavoiur == OB.SKIP:
return None
elif behavoiur == OB.OVERWWRITE:
return filepath
else:
while os.path.exists(filepath+".png"):
filepath = filepath + str(secrets.token_hex(1))
return filepath
return filepath
def convert_to_image(self, output_path: str, on_conflict: Overwrite_behaviour=OB.SKIP, x_size: int=200):
for scope in self.function_scopes:
filepath = f"{output_path}/{scope.name}"
filepath = self.check_conflicts(filepath, on_conflict)
if filepath is not None:
logging.info(f"Saving NSD to {filepath}.png...")
try:
self._save_scope(scope, filepath, x_size)
except Exception as e:
logging.error(f"Failed to save image {filepath} with error '{e}'")
raise e
except:
logging.error(f"Failed to save image {filepath}. Unknown error")
raise
def load_from_file(self, filepath:str, itp_custom_tags: Dict[str, List[str]]):
itp = JavaInterpreter(filepath)
itp.reset_tags(itp_custom_tags)
self.function_scopes = itp.load_instruction_scopes()