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Re: Printing

From: Lennart Borgman
Subject: Re: Printing
Date: Sat, 4 Apr 2009 08:54:32 +0200

On Sat, Apr 4, 2009 at 4:44 AM, YAMAMOTO Mitsuharu
<address@hidden> wrote:
>>>>>> On Thu, 02 Apr 2009 18:39:24 +0900, YAMAMOTO Mitsuharu <address@hidden> 
>>>>>> said:
>> I tried making a really preliminary proof-of-concept cairo port. :-)
>> It's still rough and has several glitches/limitations, but at least
>> it can generate a "resolution-independent screenshot" PDF as
>> attached.  Maybe I'll clean up the code this weekend and hopefully
>> post a patch.
> Here's the patch for the Emacs 23.0.92 pretest (not the trunk HEAD).
> * No configure support.  The easiest way would be to compile it with
>  the GTK+ support that is already linked with cairo libs.  Add
>  -DUSE_CAIRO to CFLAGS to activate the cairo code.
> * With an experimental function (x-export-frame-image FRAME TYPE), you
>  can get the current FRAME screenshot as a unibyte string in TYPE
>  format.  TYPE can be 'pdf, 'ps, 'png, or 'svg if the installed cairo
>  supports their formats.
> * Currently, texts, rectangles (filling and stroking), and trapezoids
>  for reliefs are drawn using cairo by hooking the corresponding
>  drawing routine calls in xterm.c.  They use X11 GC (with extension
>  data) for colors and clipping rectangles, but operations on them can
>  easily be ported to non-X11 (e.g., terminal-only) environments just
>  like the Carbon port.
> * Images could also be drawn with cairo, but I didn't do that because
>  the image drawing in xterm.c depends on X-specific data structures.
>  As a result, you can't see any images in the exported screenshot as
>  of now.
> * Stipples are ignored (both on screen and exported one).
> * Exported png images seem to be incorrect in some cases.  I suspect
>  it has something to do with cairo's cluttering the activated FT_Size
>  mentioned in ftcrfont.c, but I'm not sure.

Does this work on w32?

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