[Thunar-dev] Something weird with thumbnailers (transparency and no drop shadow)
thunardevlist at sstuhr.dk
Tue Aug 14 17:50:58 CEST 2007
On Tue, 2007-08-14 at 15:53 +0100, Erlend Davidson wrote:
> I've written a thumbnailer for OpenDocument files (which doesn't need
> libgsf), but I notice thunar isn't putting the nice border shadow around
> the icons thumbnailed using this. Furthermore, if I go into
> ~/.thumbnails/normal and find the actual thumbnail image it has
> transparent parts! The background colour (white) has been made
> transparent somehow.
> My thumbnailer isn't doing it AFAIK, it simply does:
> unzip -p "$ifile" Thumbnails/thumbnail.png | convert - -scale
> "$sizex$size" "png:$ofile"
> and the original thumbnail.png files in the ODF are not transparent.
I have just looked in an ODF document on my computer, and the
Thumbnails/thumbnail.png file (in my document file, at least) definitely
have a transparent background.
unzip -p "$ifile" Thumbnails/thumbnail.png | convert - +matte -scale "$sizex$size" "png:$ofile"
>From the ImageMagick documentation:
store matte channel if the image has one.
If the image does not have a matte channel, create an opaque
Use +matte to ignore the matte channel and to avoid writing a
matte channel in the output file.
> guess is that the transparency is somehow killing the border.
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