import Printing
import Qd
import Fm
import Res
# some constants
PostScriptBegin = 190 # Set driver state to PostScript
PostScriptEnd = 191 # Restore QuickDraw state
PostScriptHandle = 192 # PostScript data referenced in handle
CHUNK_SIZE = 0x8000 # max size of PicComment
def PostScript(text):
"""embed text as plain PostScript in print job."""
handle = Res.Resource('')
Qd.PicComment(PostScriptBegin, 0, handle)
while text:
chunk = text[:CHUNK_SIZE]
text = text[CHUNK_SIZE:]
handle.data = chunk
Qd.PicComment(PostScriptHandle, len(chunk), handle)
handle.data = ''
Qd.PicComment(PostScriptEnd, 0, handle)
# create a new print record
printrecord = Printing.NewTPrintRecord()
# open the printer
Printing.PrOpen()
try:
# initialize print record with default values
Printing.PrintDefault(printrecord)
# page setup, ok is 0 when user cancelled
ok = Printing.PrStlDialog(printrecord)
if not ok:
raise KeyboardInterrupt
# at this stage, you should save the print record in your document for later
# reference.
# print job dialog, ok is 0 when user cancelled
ok = Printing.PrJobDialog(printrecord)
if not ok:
raise KeyboardInterrupt
# once per document
port = Printing.PrOpenDoc(printrecord)
# port is the Printer's GrafPort, it is also the current port, so no need to Qd.SetPort(port)
try:
# start printing a page
# XXX should really look up what pages to print by
# inspecting the print record.
Printing.PrOpenPage(port, None)
try:
# use QuickDraw like in any other GrafPort
Qd.FrameRect((10, 250, 100, 500))
Qd.FrameRect((10, 510, 100, 600))
Qd.MoveTo(10, 100)
Qd.TextSize(50)
Qd.TextFont(Fm.GetFNum("Helvetica"))
Qd.DrawString("It rreally works!")
Qd.MoveTo(10, 150)
Qd.TextSize(20)
Qd.DrawString("(and now for a little PostScript...)")
# example PostScript code
ps = """
% the coordinate system is the quickdraw one, which is flipped
% compared to the default PS one. That means text will appear
% flipped when used directly from PostScript.
% As an example we start by defining a custom scalefont operator
% that corrects this.
/myscalefont{[exch 0 0 2 index neg 0 0]makefont}def
0.75 setgray
0 0 moveto
0 30 lineto 10000 30 lineto
10000 0 lineto closepath fill
0 setgray
5 25 moveto /Courier findfont 20 myscalefont setfont
(Printed with PostScript!) show
2 setlinewidth [10 10 5 10] 0 setdash 5 5 moveto 400 0 rlineto stroke
"""
# embed the PostScript code in the print job
PostScript(ps)
finally:
# when done with the page
Printing.PrClosePage(port)
finally:
# when done with the document
Printing.PrCloseDoc(port)
finally:
# when done printing
Printing.PrClose()
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