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more comments in resources.tcl

This commit is contained in:
Stefan Frederik 2021-11-07 01:32:03 +01:00
parent bb8ccce4d1
commit 1b8920f3f0
1 changed files with 15 additions and 0 deletions
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src/resources.tcl
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@ -40,6 +40,21 @@
## # we need to lose transparency in gif otherwise all antialiasing in png image is lost
## # so we set white background and eliminate alpha channel (unsupported in gif).
## convert -background white -alpha remove -alpha off paste.png gif:- |base64
##
## Following shell function (and call) converts a png base64 encoded to proper
## gif89a base64 encoded format:
## to_gif () {
## echo "image create photo $1 -data \""
## echo -n "$2" | base64 -d |convert -background white -alpha remove -alpha off - gif:- |base64
## echo '"'
## }
##
## to_gif CtxmenuBlank "
## iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAACXBIWXMAAACkAAAAsAGMLevkAAAA
## GXRFWHRTb2Z0d2FyZQB3d3cuaW5rc2NhcGUub3Jnm+48GgAAABJJREFUOI1jYBgFo2AUjAIIAAAE
## EAABf014jgAAAABJRU5ErkJggg==
## "
##
## Toolbar buttons