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World: r3wp

[Postscript] Emitting Postscript from REBOL

Graham
18-Apr-2006
[751]
compose copy [ ]
Henrik
18-Apr-2006
[752]
size-text is the limit of the size of the face as well
Graham
18-Apr-2006
[753]
oh ..
Henrik
18-Apr-2006
[754x9]
center: func [text width font] [
  (width / 2) - (first size-text make face compose copy [
    text: (text)
    font: (font)
    size: (as-pair width 100)
  ])
]
hmm... maybe a different one is better...
center: func [text size font] [
  (size/x / 2) - (first size-text make face compose copy [
    text: (text)
    font: (font)
    size: (size)
  ])
]
center: func [text size font] [
  divide subtract size/x first size-text make face compose copy [
    text: (text)
    font: (font)
    size: (size)
  ] 2
]
getting better :-)
offsets a few pixels to the left, but it seems to center the text
the offset gets bigger when using a larger font.. wonder what causes 
it
anyhoo:


img: draw make image! 297x210 compose [pen red font (make face/font 
[size: 30]) text (as-pair center "BOOM!" 297x210 make face/font [size: 
30] 20) "BOOM!"]
view layout [image img]
I hope this can be done a little prettier...
Henrik
19-Apr-2006
[763]
http://www.hmkdesign.dk/run14.png<--- the offset can be seen at 
the bottom. I haven't tested, but maybe the kerning between the VID 
and DRAW font rendering isn't the same.
Geomol
19-Apr-2006
[764]
That looks like a nice little application! :-) Nice!
Henrik
19-Apr-2006
[765]
been working on that thing for way too long... but hopefully it can 
be completed now
james_nak
19-Apr-2006
[766]
How did you do those lists with the rows and columns? : - )  Just 
kidding, Looks great.
Henrik
19-Apr-2006
[767]
that's current generation LIST-VIEW. no hidden mirrors or anything.
james_nak
19-Apr-2006
[768]
You mean the version that is posted?
Henrik
19-Apr-2006
[769x3]
yes
well, there might actually be one feature missing in 0.0.38: focusing 
and unfocusing of list views
unfocused list views sport a grey selector instead of a green one
Graham
19-Apr-2006
[772]
Henrik, nice .. but I can't see the problem.
Henrik
19-Apr-2006
[773]
the "paper" in the bottom shows "0000". They are slightly aligned 
to the left. They shouldn't be.
Graham
19-Apr-2006
[774x2]
Ahh..
but that's a View preview - presumably the postscript print out is 
centred?
Henrik
19-Apr-2006
[776]
I hope so
Graham
19-Apr-2006
[777x8]
I noticed that viewing pdfs from ps2pdf is not exact.
the vertical height is not right in the pdf.
If you look at my layout examples above, you can see that the font 
size is not the same as the point size used in View.
So, that a fontsize of 20 gives a y: 23
fontsize of 12, gives y: 15
Perhaps they should be equal.
but it may relate to the horizontal displacement problem you're having.
can any view experts explain why the difference?
Henrik
19-Apr-2006
[785]
that's right. the font points are of a smaller dpi than the coordinate 
system it seems
Graham
19-Apr-2006
[786]
I'll submit a rambo ...
Henrik
19-Apr-2006
[787x2]
I think the font size is bound to the screen resolution
under linux they tend to go up or down, because you can set the DPI 
settings in X
Graham
19-Apr-2006
[789]
So, what do you suggest?
Henrik
19-Apr-2006
[790]
post a RAMBO and see what happens. at least on the size difference 
between fonts in VID and fonts in DRAW
Graham
19-Apr-2006
[791]
Perhaps you can ..
Henrik
19-Apr-2006
[792]
I can't confirm it, and I haven't worked that much with it yet to 
be certain.
Graham
20-Apr-2006
[793x3]
Posted a rambo on the subject.
I can't see RT changing anything here without invalidating every 
script before that uses a
font.
Henrik
20-Apr-2006
[796]
it'll have to be worked around for now. if the size deviation is 
proportional to the size of the font, it could be fixed with a coefficient 
on the font size of the DRAW text
Graham
20-Apr-2006
[797x2]
Chris posted this to me
Is this indicative of the current problem?

>> foreach typeface ["arial" "times new roman" "verdana" "trebuchet 
ms"][

[    layout [tx: text font [name: typeface size: 10] do [probe second 
size-text tx]]
[    ]
13
12
12
15
Henrik
21-Apr-2006
[799x2]
hmm... preview.app has a funny way of detecting when to rotate the 
paper. if the first given text is rotated 90 degrees, it will rotate 
the paper, otherwise it will not. I wonder if this is standard behaviour?
oh, great, now I can't print Danish letters with PS