Files
Nassi-Shneiderman-Diagramm-…/draw/Iinstruction.py
2021-03-15 14:12:41 +01:00

216 lines
6.7 KiB
Python

"""Iinstruction.py: #TODO"""
__author__ = "Weckyy702"
from typing import Iterable, List
from abc import ABCMeta, abstractmethod
from draw import code_to_image as cti
class Iinstruction(metaclass=ABCMeta):
"""Base class for all instructions"""
def __init__(self, instruction_text: str) -> None:
self.instruction_text = instruction_text
@abstractmethod
def to_image(self, x:int, y:int, x_sz: int) -> Iterable[float]:
pass
@abstractmethod
def getblkheight(self) -> float:
pass
@abstractmethod
def getblkwidth(self) -> float:
pass
@abstractmethod
def __str__(self) -> str:
pass
def _getblkheight(self) -> float:
return cti.get_text_size(self.instruction_text)[1] + cti.PADDING_Y #padding
def _getblkwidth(self) -> float:
return cti.get_text_size(self.instruction_text)[0] + cti.PADDING_X #padding
class generic_instruction(Iinstruction):
"""Any instruction that is not a control structure"""
def __init__(self, instruction_text: str) -> None:
Iinstruction.__init__(self, instruction_text)
def to_image(self, x:int, y:int, x_sz: int) -> Iterable[float]:
return cti.draw_generic_instruction(self.instruction_text, x, y, x_sz, self.getblkheight())
def getblkheight(self) -> float:
return self._getblkheight()
def getblkwidth(self) -> float:
return self._getblkwidth()
def __str__(self) -> str:
return self.instruction_text
class if_instruction(Iinstruction):
"""Conditional structure
NOT.
A.
LOOP
"""
def __init__(self, instruction_text: str, true_case: List[Iinstruction], false_case: List[Iinstruction]=None) -> None:
Iinstruction.__init__(self, instruction_text)
self.true_case = true_case
self.false_case = false_case
def get_trueheight(self) -> float:
sz = 0.0
for inst in self.true_case:
sz += inst.getblkheight()
return sz
def get_falseheight(self) -> float:
sz = 0.0
if self.false_case:
for inst in self.false_case:
sz += inst.getblkwidth()
return sz
def get_truewidth(self) -> float:
w = 200.0
for inst in self.true_case:
w = max(w, inst.getblkwidth())
return w
def get_falsewidth(self) -> float:
w = 200.0
if self.false_case:
for inst in self.false_case:
w = max(w, inst.getblkwidth())
return w
def getblkheight(self) -> float:
return self._getblkheight() + max(self.get_trueheight(), self.get_falseheight())
def getblkwidth(self) -> float:
return max(self._getblkwidth(), self.get_truewidth() + self.get_falsewidth())
def to_image(self, x:int, y:int, x_sz: int) -> Iterable[float]:
true_w = self.get_truewidth()
false_w = self.get_falsewidth()
true_x, true_y, false_x, false_y = cti.draw_if_statement(
self.instruction_text, x, y, true_w, false_w, self.getblkheight()
)
self.draw_true_case(true_x, true_y, true_w)
self.draw_false_case(false_x, false_y, false_w)
blk_size = self.getblkheight()
return x, y + blk_size
def draw_true_case(self, x: float, y:float, x_sz:float):
for instruction in self.true_case:
x, y = instruction.to_image(x, y, x_sz)
def draw_false_case(self, x: float, y:float, x_sz:float):
if self.false_case:
for instruction in self.false_case:
x, y = instruction.to_image(x, y, x_sz)
def __str__(self) -> str:
res = f"if({self.instruction_text}) {'{'}\n"
for inst in self.true_case:
res += '\t'+str(inst)+";\n"
res += "}"
if self.false_case:
res += " else {"
for inst in self.true_case:
res += '\t'+str(inst)+";\n"
res += "}"
return res
# class switch_instruction(Iinstruction):
# """Switch structure"""
# def __init__(self, instruction_text: str, cases: List[List[Iinstruction]]) -> None:
# Iinstruction.__init__(self, instruction_text)
# self.child_cases = cases
# def to_image(self, x:int, y:int, x_sz: int, y_sz: int) -> Iterable[float]:
# """TODO: implement"""
# return []
# def draw_children(self, x:float, y:float, x_sz:float, y_sz:float) -> float:
# """TODO: implement"""
# return 0.0
class while_instruction_front(Iinstruction):
def __init__(self, condition: str, instructions: List[Iinstruction]) -> None:
Iinstruction.__init__(self, condition)
self.child_instructions = instructions
def get_children_height(self) -> float:
children_sz = 0
for inst in self.child_instructions:
children_sz += inst.getblkheight()
return children_sz
def get_children_width(self) -> float:
w = 0.0
for inst in self.child_instructions:
w += inst.getblkheight()
return w
def getblkheight(self) -> float:
return self._getblkheight() + self.get_children_height()
def getblkwidth(self) -> float:
return max(self._getblkwidth(), self.get_children_width())
def to_image(self, x:int, y:int, x_sz: int) -> Iterable[float]:
children_x, children_y, children_sz_x = cti.draw_while_loop_front(self.instruction_text, x, y, x_sz, self.getblkheight())
self.draw_children(children_x, children_y, children_sz_x)
return x, y + self.getblkheight()
def draw_children(self, x:float, y:float, x_sz:float):
for inst in self.child_instructions:
x, y = inst.to_image(x, y, x_sz)
return self.get_children_height()
def __str__(self) -> str:
res = "while(" + self.instruction_text + "){\n"
for inst in self.child_instructions:
res += '\t'+str(inst)+";\n"
res += '}'
return res
class while_instruction_back(while_instruction_front):
def __init__(self, condition: str, instructions: List[Iinstruction]) -> None:
while_instruction_front.__init__(self, condition, instructions)
def to_image(self, x:int, y:int, x_sz: int):
children_x, children_y, children_sz_x = cti.draw_while_loop_back(self.instruction_text, x, y, x_sz, self.getblkheight())
self.draw_children(children_x, children_y, children_sz_x)
return x, y + self.getblksize()
def __str__(self) -> str:
res = "do{\n"
for inst in self.child_instructions:
res += '\t' +str(inst) + ";\n"
res += f"{'}'}while({self.instruction_text});"
return res
class for_instruction(while_instruction_front):
pass