World: r3wp
[Postscript] Emitting Postscript from REBOL
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Gabriele 14-Mar-2009 [1924x3] | You can use metrics.bin, or you can even use my TeX based typesetter, as that is completely independent from the PDF Maker. |
it needs work, it's quite slow the way it is now, and I need to redo the math as the approach I used doesn't work very well (the results are good anyway, it's just that there are too many special cases in the code). | |
still... even if you just study the pdf maker you'll learn all you need about what you need to do. | |
Geomol 14-Mar-2009 [1927] | Thanks, Gabriele. I have the info to make those alignments and will probably do it next week. |
Geomol 16-Mar-2009 [1928] | I made the center- and right-alignment of text for PDF output. See Announce! |
Geomol 17-Mar-2009 [1929] | Ver. 0.4.7 of PostScript dialect incl. PDF output uploaded: http://www.fys.ku.dk/~niclasen/postscript/ - I included font widths in rebps2pdf.r instead of separate binary, and - fixed a bug. |
Geomol 20-Mar-2009 [1930] | List of printers supporting Level 2 PostScript directly without software driver as of 2/2/1998: http://www.postscript.org/FAQs/language/node95.html |
Geomol 2-Jun-2009 [1931x2] | I'm working on a Print Markup Language for a customer, that will output the REBOL postscript dialect, so it can produce PostScript and PDF output. When producing text, it's possible to specify centered and right-aligned text by using the words CENTER or RIGHT after the text followed by the size of the area, wherein the text should be aligned. Example: at 100x100 "Right-aligned text" right 400 has the same effect as: at 500x100 "Right-aligned text" right 0 Suggestion: The dialect will be more simple, if the size is dropped. Then the position (from AT) is the right border of the text on the output. Same for CENTER, where the position will be the center of the text. I know, Henrik use this dialect. What do you say? If others use this dialect, I would like to hear your opinions! If I change this in the dialect, it may mean changes to your code. |
Because all content in the dialect starts with a word or a string, I could make the size optional. It will just mean a more complicated dialect, but it won't break your code. | |
Henrik 2-Jun-2009 [1933x2] | Geomol, did you try my VID->postscript conversion function? It might be able to do some of what you need. |
it does not do word wrapping however. that's a problem that I've not yet solved. | |
Maxim 2-Jun-2009 [1935] | there is VID manual word-wrapping code in glayout lib if you need it. |
Henrik 2-Jun-2009 [1936] | interesting. how does it work? |
Geomol 2-Jun-2009 [1937] | hm, I remember something about that. I think, I tried it a while ago. But what about the suggestion for a change to the dialect? |
Henrik 2-Jun-2009 [1938x3] | http://rebol.hmkdesign.dk/files/vid-postscript2.png |
if you drop the position marker, will it be simpler or harder to build formatted tables? | |
oops, size marker, not position marker | |
Geomol 2-Jun-2009 [1941x3] | It should make no difference. Dropping the size just mean, you need to add the size to the possition yourself. The thing is, in my examples here, I often know the final right border (pos + size), so I always have size set to zero. And then it struck me, that I don't need the size. |
at 0x0 "some long text that will be right aligned" right 800 is the same as at 800x0 "some long text that will be right aligned" right | |
I like the second way better. | |
Maxim 2-Jun-2009 [1944] | glayout wordwrap functions uses the internal view commands which calculate word-wrap. |
Henrik 2-Jun-2009 [1945] | Maxim, so they will be identical to what is seen in View instead of DRAW? |
Maxim 2-Jun-2009 [1946x3] | I was using it specifically to build HUGE tables (300000cells) and its deadly fast. |
yes. | |
you can use it to wordwrap draw text too. | |
Henrik 2-Jun-2009 [1949x2] | this will be useful when I will get to finish the function, perhaps in a month or so. |
Geomol, I guess it doesn't harm layout capabilities. | |
Geomol 2-Jun-2009 [1951] | Do you use the RIGHT and CENTER options in the dialect in your code today? Would you have to change alot, if I drop the size in the dialect? |
Maxim 2-Jun-2009 [1952] | the function is called get-word-wrap in the glayout lib (on rebol.org) |
Henrik 2-Jun-2009 [1953x2] | Geomol, there are some subtle bugs that I've not been able to figure out, causing certain layouts not to print, so I stick to a specific version right now. |
It's a little annoying having only a 1-2 week window a year to work with postscript. | |
Maxim 2-Jun-2009 [1955:last] | get-word-wrap can even return the pair size next to the lines, if you need the info to properly place the text :-) |
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