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57 lines
1.9 KiB
Python
57 lines
1.9 KiB
Python
import time
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import os # library to use bash commands
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import keyboard
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def preview_output(preview_button_count, last_module):
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#open last_module.ps, read its content and save it as print.ps
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fileInput = open(last_module + ".ps", "rt") # rt = read text mode
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#output file to write the result to
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fileOutput = open("print.ps", "wt") # wt = write text mode
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# read the input file, search for a patterns, replace it with new patterns (that take the values from the input sensor)
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# uses regular expressions library (re)
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content = fileInput.read()
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# write the new text to the output file
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fileOutput.write(content)
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#close input and output files
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fileInput.close()
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fileOutput.close()
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#on first button press: open preview
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if preview_button_count == 1:
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print("start preview of print.ps")
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os.system("gv -fullscreen print.ps &") # open file in ghostscript viewer in fullscreen mode
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#on additional button press: refresh preview
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elif preview_button_count >= 2:
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print("refresh preview of print.ps")
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keyboard.send(".") # refresh file that is open in ghostscript viewer
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def print_output(last_module):
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#open last_module.ps, read its content and save it as print.ps
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fileInput = open(last_module + ".ps", "rt") # rt = read text mode
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#output file to write the result to
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fileOutput = open("print.ps", "wt") # wt = write text mode
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# read the input file, search for a patterns, replace it with new patterns (that take the values from the input sensor)
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# uses regular expressions library (re)
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content = fileInput.read()
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# write the new text to the output file
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fileOutput.write(content)
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#close input and output files
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fileInput.close()
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fileOutput.close()
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#on button press: send to printer
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print("send print.ps to printer")
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os.system("lp print.ps") # lp is the bash print command
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