On Sat, 5 Aug 2000, Ben Escoto wrote:
> >>>>> "JH" == James Henstridge <[EMAIL PROTECTED]>
> >>>>> wrote the following on Sat, 5 Aug 2000 17:04:23 +0800 (WST)
>
> >> I would like to fill a GnomeCanvasItem on the GnomeCanvas with
> >> an xpm. How is this done?
>
> JH> A stipple is a bitmap, so unless the image is only two colours,
> JH> I don't think this would work. I am not sure if there is a way
> JH> to do what you want with the standard canvas items.
>
> Thanks for your response, I appreciate it. Then is the best way
> to do it to forget about the GnomeCanvas and just use gdk commands?
> For instance, could I make a bitmap of a polygon, and then use that to
> screen off an image, and the result would have the same effect as
> sticking a pixmap in a polygon? I just don't want to waste time
> trying to do something in a way that can't be done or in an obviously
> stupid way.
That is basically correct. You want to create a 1-bit depth pixmap
(bitmap) as a mask, and draw the polygon on that. Then set it as a clip
mask for the GC and then draw the pixmap with it. This will clip the
pixmap.
>
> For instance, I orginally wrote my program (a spherical pager,
> see http://www.stanford.edu/~bescoto/tmp/sphere-pager.jpg for current
> screenshot) using Tkinter, but then switched it to Gtk because I was
> under the impression that GnomeCanvas had (working) anti-aliased
> graphics and polygons I could stick pictures in...
>
>
> --
> Ben Escoto
James.
--
Email: [EMAIL PROTECTED]
WWW: http://www.daa.com.au/~james/
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