World: r3wp
[Postscript] Emitting Postscript from REBOL
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Henrik 14-Oct-2008 [1815x2] | interesting that you can run the file. I can't. |
and I've already added scaling | |
Geomol 14-Oct-2008 [1817x5] | I had a problem some time ago showing PS files, I produced. I think, it was some cache. |
The dialect code, you produce, looks ok. I'm really not a shark with PS, so it doesn't mean, it's 100%, even if it looks ok to me. :) | |
Best way is to test, test, test, I'm afraid. | |
I can't get image! datatype to work in the postscript dialect (your suggestion). If I have it as a word, that is being "get", it works. | |
It's because, an image! datatype is the sequence make image! [ .... and that is being parsed. | |
Henrik 14-Oct-2008 [1822x4] | I don't get The 'img variable is set to an image! type, just like it is when using load-image from a file or url (which I couldn't get to work either). |
Sorry, should be: I don't get it. The 'img variable is set to an image! type, just like it is when using load-image from a file! or url! (which I couldn't get to work either). | |
I'm very confused right now. Images now work, but are placed in the wrong corner, despite being given the same coordinates as text and boxes. | |
solved the positioning problem | |
Graham 4-Dec-2008 [1826x2] | Henrik, did you create a dialect that takes a VID layout and produces a printout in PS? |
Yes... I know it's 1am for you! | |
Henrik 4-Dec-2008 [1828] | yes, I did |
Graham 4-Dec-2008 [1829] | How well does it work? |
Henrik 4-Dec-2008 [1830] | actually not a dialect, it just converts a View object tree to postscript. it's used in the same way as to-image is on a layout. |
Graham 4-Dec-2008 [1831x2] | Kewl |
Have you published it? | |
Henrik 4-Dec-2008 [1833x2] | http://rebol.hmkdesign.dk/files/vid-postscript2.png |
http://rebol.hmkdesign.dk/files/to-postscript.r | |
Graham 4-Dec-2008 [1835] | close .... |
Henrik 4-Dec-2008 [1836] | if you're doing B/W stuff and not worrying too much about text wrapping, then it should work. |
Graham 4-Dec-2008 [1837] | since it works on a view object ... it should work on Rebgui as well |
Henrik 4-Dec-2008 [1838] | no bitmap support and no wrapped text support. |
Graham 4-Dec-2008 [1839] | why not? |
Henrik 4-Dec-2008 [1840] | (which is why it says wednesday twice in one of the fields in the postscript output. |
Graham 4-Dec-2008 [1841] | the ps dialect supports rebol image format |
Henrik 4-Dec-2008 [1842] | because that is handled at the View level. text wrapping information is not available in the layout tree. |
Graham 4-Dec-2008 [1843] | Hope Vid+ doesn't have that limitation |
Henrik 4-Dec-2008 [1844] | The approach would be similar, but I don't know if that information can be extracted. Perhaps it can if Cyphre is pushed hard enough. :-) |
Graham 4-Dec-2008 [1845x2] | Pehaps we need some hooks into the layout engine that allows us to extract this type of data |
eg. we can submit an area to the layout engine and get a graphic back at a specified resolution | |
Henrik 4-Dec-2008 [1847] | rich text has some bugs, which cyphre is able to fix once he gets time, so I hope this will be possible to hook into. i.e. it's not a closed part that we can't touch. |
Graham 4-Dec-2008 [1848x2] | so, we can do the text formmating using VID+ and take it out as a graphic |
probably better if we can get the xy of each character in the text string | |
Henrik 4-Dec-2008 [1850x2] | that is possible |
I'll get to know it more when we get to build a real rich text editor | |
Graham 5-Dec-2008 [1852] | Doesn't seem to work with layouts from rebgui >> lo2: display "Test" [ text "hello" ] >> unview/all >> type? lo2 == object! >> to-postscript lo2 ** Script Error: Cannot use path on none! value ** Where: ps-face ** Near: if f/font/name [append font-name 'Helvetica] if find |
Henrik 5-Dec-2008 [1853x2] | perhaps the layout tree is different for rebgui |
all to-postscript.r does is go through the layout tree and renders each object as a postscript color box with a text box on top of it. face values are just mapped into postscript. | |
Graham 5-Dec-2008 [1855x3] | the first place it barfs in this simple layout is here if f/font/name [append font-name 'Helvetica] |
Which seems to say, if you have specified a font, ignore it and just use helvetica! | |
for Rebgui ... f/font is none | |
Henrik 5-Dec-2008 [1858] | I think that was supposed to be some kind of font mapping which wasn't finished. |
Graham 5-Dec-2008 [1859x5] | Probably the best thing is to ensure the user uses the PostScript TTFs in their layouts |
and then you can map | |
Let me check to see what mapping I use ... | |
; map postscript fonts to windows fonts fonts: [ Bookman-Demi "URW Bookman L Demi Bold" Bookman-DemiItalic "URW Bookman L Demi Bold Italic" Bookman-Light "URW Bookman L Light" Bookman-LightItalic "URW Bookman L Light Italic" Courier "Nimbus Mono L" Courier-Oblique "Nimbus Mono L Regular Oblique" Courier-Bold "Nimbus Mono L Bold" Courier-BoldOblique "Nimbus Mono L Bold Oblique" AvantGarde-Book "URW Gothic L Book" AvantGarde-BookOblique "URW Gothic L Book Oblique" AvantGarde-Demi "URW Gothic L Demi" AvantGarde-DemiOblique "URW Gothic L Demi Oblique" Helvetica "Nimbus Sans L" Helvetica-Oblique "Nimbus Sans L Regular Italic" Helvetica-Bold "Nimbus Sans L Bold" Helvetica-BoldOblique "Nimbus Sans L Bold Italic" Helvetica-Narrow "Nimbus Sans L Condensed" Helvetica-Narrow-Oblique "Nimbus Sans L Condensed Italic" Helvetica-Narrow-Bold "Nimbus Sans L Condensed Bold" Helvetica-Narrow-BoldOblique "Nimbus Sans L Condensed Bold Italic" Palatino-Roman "URW Palladio L Roman" Palatino-Italic "URW Palladio L Italic" Palatino-Bold "URW Palladio L Bold" Palatino-BoldItalic "URW Palladio L Bold Italic" NewCenturySchlbk-Roman "Century Schoolbook L Roman" NewCenturySchlbk-Italic "Century Schoolbook L Italic" NewCenturySchlbk-Bold "Century Schoolbook L Bold" NewCenturySchlbk-BoldItalic "Century Schoolbook L Bold Italic" Times-Roman "Nimbus Roman No9 L" Times-Italic "Nimbus Roman No9 L Regular Italic" Times-Bold "Nimbus Roman No9 L Medium" Times-BoldItalic "Nimbus Roman No9 L Medium Italic" Times-BoldOblique "Nimbus Roman No9 L Medium Italic" Symbol "Standard Symbols L" ZapfChancery-MediumItalic "URW Chancery L Medium Italic" ZapfDingbats "Dingbats" free 3 of 9 regular "FREE3OF9.TTF" ] | |
the last one is a bar code font I use | |
Geomol 8-Feb-2009 [1864] | I just realized, my postscript pages are gone with my old homepage. Moving things over to ... |
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