Ok I'm a Python noob, been doing OK so far, working on a data
conversion program and want to create some character image files from
an 8-bit ROM file.
Creating the image I've got down, I open the file and use TK to draw
the images... but
1) It does not seem to end (running in IDLE), I have to kill the
process to retry it seems tkinter does not close(?)
2) Once I added the Image module open won't open my binary file
(complains its not an image file, which is isnt.) I am sure I need to
prefix open with something but I can't seem to find an example of how
to word it,
Below is the code (if it is lousy its because I've mainly been
borrowing by examples as I go...) Any suggestions are gretly
appreciated.
#!/usr/local/bin/python
from Tkinter import *
from string import *
from Image import *
root = Tk()
root.title('Canvas')
#open commodore Cset rom
cset = open("chargen","r")
canvas = Canvas(width=16, height=16, bg='white')
canvas.pack(expand=YES, fill=BOTH)
# character size factor
size = 2
# read all 512 characters from ROM
for cchar in range(0, 511, 1):
#draw line
while charline < 8:
position = 0
x = cset.read(1)
ch = ord(x)
# draw pixels
while position < 8:
if ch & ( 2 ** position ):
xp = 1+(7-position)*size
yp = 1+charline*size
canvas.create_rectangle(xp,yp,xp+size,yp+size,
fill='black', width=0)
position += 1
charline += 1
#save character image
outfile = "/home/mydir/work/char"+zfill(cchar,3)+".png"
canvas.save(outfile,"png")
#clear canvas for next char...
canvas.create_rectangle(1,1,size*8,size*8, fill='white', width=0)
root.mainloop()
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