Files
Nassi-Shneiderman-Diagramm-…/draw/code_to_image.py
2021-02-09 15:42:14 +01:00

133 lines
4.8 KiB
Python

#!/usr/bin/env python
"""code_to_image.py: #TODO"""
__author__ = "plexx, Weckyy702"
from typing import Iterable
from PIL import Image, ImageDraw, ImageFont
import os
datei_endung = ".png"
img = None
output_img = None
_bkp_font = ImageFont.truetype("res/fonts/NotoSans-Regular.ttf", 12) # ImageFont.load_default()
#in case set_font does funky stuff, backup the original font
font = _bkp_font
def NSD_init(x: float, y: float):
#get input_img
global img, output_img
#img = Image.open(input_dir + file_name + datei_endung)
img = Image.new("RGB", (x, y), "white")
output_img = ImageDraw.Draw(img)
def set_font(font_filepath: str):
if not os.path.exists(font_filepath):
raise FileNotFoundError("TTF file was not found!")
global font
try:
font = ImageFont.truetype(font_filepath, 12)
except:
font = _bkp_font
raise
def get_text_size(text: str):
if not font:
raise Exception("Output image was not initialized! Make sure to call NSD_init first")
return font.getsize(text)
def draw_debug_tile(x, y, x_sz, y_sz):
from random import randint
output_img.rectangle((x, y) + (x + x_sz, y + y_sz), fill=(randint(0, 255)))
return x, y + y_sz
def draw_generic_instruction(instruction: str, x, y, xsize, ysize) -> Iterable[float]:
if not output_img:
raise Exception("Output image was not initialized! Make sure to call NSD_init first")
#draw shit
output_img.rectangle((x,y) + (x + xsize, y + ysize), outline=(0), width=1)
#text shit
output_img.multiline_text((x + xsize * .5, y + ysize * .5), instruction, font=font, anchor="mm", align="right", fill=(0))
return x, y + ysize
def draw_if_statement(condition: str, x: int, y: int, true_w: int, false_w: int, ysize: int):
"""Draw an if statement into the NSD"""
if not output_img:
raise Exception("Output image was not initialized! Make sure to call NSD_init first")
text_h = font.getsize(condition)[1] + 5
box_w = true_w + false_w
output_img.line((x,y) + (x + box_w/2, y + text_h), fill=(0))
output_img.line((x + box_w, y) + (x + box_w/2, y + text_h), fill=(0))
output_img.rectangle((x, y + text_h) + (x + box_w, y + ysize), outline=(0), width=1)
output_img.rectangle((x, y) + (x + box_w, y + text_h), outline=(0), width=1)
output_img.line((x + true_w, y + text_h) + (x + true_w, y + ysize), fill=(0))
# condition text
output_img.multiline_text((x + box_w / 2, y + text_h / 2), condition, fill=(0), font=font, anchor="mm", spacing=4, align='right')
# true / false
output_img.text((x + 5, y + text_h), "true", font = font, fill = (0), anchor="ld")
output_img.text((x + box_w - 5, y + text_h), "false", font = font, fill = (0), anchor="rd")
#x, and y of "true" and "false" label
return x, y + text_h, x + true_w, y + text_h
def draw_while_loop_front(condition: str, x: int, y: int, xsize: int, ysize: int):
if not output_img:
raise Exception("Output image was not initialized! Make sure to call NSD_init first")
text_y_sz = font.getsize(condition)[1]
#the box
output_img.line((x,y) + (x + xsize, y), fill=(0))
output_img.line((x,y) + (x, y + ysize), fill=(0))
output_img.line((x + xsize * .1, y + text_y_sz) + (x + xsize, y + text_y_sz), fill=(0))
output_img.line((x + xsize, y) + (x + xsize, y + text_y_sz), fill=(0))
output_img.line((x, y + ysize) + (x + xsize * .1, y + ysize ), fill=(0))
output_img.line((x + xsize * .1, y + ysize) + (x + xsize * .1, y + text_y_sz), fill=(0))
#the text
output_img.text((x + xsize * .1, y + text_y_sz * .5), condition, font = font, fill = (0), anchor="lm")
#the x, y offset then the x,y draw size (the canvas)
return x + xsize * .1, y + text_y_sz, xsize * .9
def draw_while_loop_back(condition: str, x: int, y: int, xsize: int, ysize: int):
if not output_img:
raise Exception("Output image was not initialized! Make sure to call NSD_init first")
text_y_sz = get_text_size(condition)[1]
#the box
output_img.line((x,y) + (x + xsize * .1, y), fill=0)
output_img.line((x + xsize * .1, y) + (x + xsize * .1, y + ysize - text_y_sz), fill=0)
output_img.line((x + xsize * .1, y + ysize - text_y_sz) + (x + xsize, y + ysize - text_y_sz), fill=0)
output_img.line((x + xsize, y + ysize - text_y_sz) + (x + xsize, y + ysize), fill=0)
output_img.line((x,y + ysize) + (x + xsize, y + ysize), fill=0)
output_img.line((x,y) + (x, y + ysize), fill=0)
#the text
output_img.text((x + xsize * .1, y + ysize - text_y_sz * .5), condition, font = font, fill = (0), anchor="lm")
#the x, y offset then the x,y draw size (the canvas)
return x + xsize * .1, y, xsize * .9
def NSD_save(filepath: str):
"""Save the created file"""
filepath = filepath.removesuffix(".png")
img.save(filepath + datei_endung ,"PNG")