nanogui: How to draw pixmap with transparency
Subject:
Re: [nanogui] How to draw pixmap with transparency
From:
Julian Smart ####@####.####
Date:
27 Feb 2002 13:31:25 -0000
Message-Id: <4.2.0.58.20020227132645.038b5220@pop>
At 11:18 AM 2/27/02 +0000, Alex Holden wrote:
>I'm not sure. There are quite a few ROPs available, look for MWROP_* in
>include/mwtypes.h. I may have a look at this later if I get a chance,
>it's been on my TODO list for a while.
That would be great, I'm sure there must be one or two other people who
could use the ability draw pixmaps transparently :-) I suppose I could do
it a pixel at a time, checking against the mask to see if I need to draw
that pixel, but... ugh...
>> A separate question -- is there a Nano-X-approved to way to convert font
>sizes expressed
>> in points to a height in pixels? I currently use the pixels-per-cm value
>to calculate it
>> but I get > 40 pixels for a point size of 12, which is a bit excessive.
>
>I think you should be able to do a GrGetFontInfo() and look at the
>height field of the GR_FONT_INFO structure.
Thanks, though unfortunately I need to convert the other way around
(the wxWindows wxFont constructor takes a font size expressed
in points). I may need to set a global fudge factor to get the size
right.
Regards,
Julian
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