From Newsgroup: comp.lang.tcl

TkSVG, the SVG Tk 9 support for Tk 8.6, has a 0.15 release:

https://github.com/tcltk-depot/tksvg/releases/tag/0.15

This is due to upstream changes in great SVGNANO project.

The changes are:

- support of the svg "color-order" attribute
- fixing a possible race condition in color values

There are binaries for MAC-OS, Linux and Win32/64.

Please comment, if those are helpful for you.

And thanks to magic other Christian to bring us all this gems !

Harald
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From Newsgroup: comp.lang.tcl

Am 13.10.2025 um 18:15 schrieb Harald Oehlmann:

TkSVG, the SVG Tk 9 support for Tk 8.6, has a 0.15 release:

https://github.com/tcltk-depot/tksvg/releases/tag/0.15

This is due to upstream changes in great SVGNANO project.

The changes are:

- support of the svg "color-order" attribute
- fixing a possible race condition in color values

There are binaries for MAC-OS, Linux and Win32/64.

Please comment, if those are helpful for you.

And thanks to magic other Christian to bring us all this gems !

Harald

Sorry, it is paint-order, not color order:

https://developer.mozilla.org/en-US/docs/Web/SVG/Reference/Attribute/paint-order

Harald
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From Newsgroup: comp.lang.tcl

On Mon, 13 Oct 2025 18:15:43 +0200, Harald Oehlmann wrote:

TkSVG, the SVG Tk 9 support for Tk 8.6, has a 0.15 release:

https://github.com/tcltk-depot/tksvg/releases/tag/0.15

This is due to upstream changes in great SVGNANO project.

The changes are:

- support of the svg "color-order" attribute
- fixing a possible race condition in color values

There are binaries for MAC-OS, Linux and Win32/64.

Please comment, if those are helpful for you.

And thanks to magic other Christian to bring us all this gems !

Harald

I find Tcl/Tk 9's SVG support really useful.

For my GUI applications _all_ my icons are SVG and for my buttons'
and menu items' -image I use this tiny function:

proc icon {svg {width 0}} {
if {!$width} {
return [image create photo -file $::APPPATH/images/$svg]
}
image create photo -file $::APPPATH/images/$svg \
-format "svg -scaletowidth $width"
}

And for color menus I generate color swatches programmatically,
again using SVG:

proc swatch {color size} {
const R [expr {max(3, $size / 4.0)}]
const W [expr {$R + 2.5}]
const SVG "<svg width=\"$size\" height=\"$size\"><rect x=\"0\"
y=\"0\" width=\"$size\" height=\"$size\" rx=\"$R\" ry=\"$R\"
fill=\"$color\" stroke-width=\"$W\" stroke=\"white\"></svg>"
image create photo -data $SVG
}

The only caveat is that for icons that contain text I must (once
each) load them into inkscape and for the text do "Object to Path"
so that they don't need any fonts.
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From Newsgroup: comp.lang.tcl

Am 14.10.2025 um 09:40 schrieb Mark Summerfield:

On Mon, 13 Oct 2025 18:15:43 +0200, Harald Oehlmann wrote:

TkSVG, the SVG Tk 9 support for Tk 8.6, has a 0.15 release:

https://github.com/tcltk-depot/tksvg/releases/tag/0.15

This is due to upstream changes in great SVGNANO project.

The changes are:

- support of the svg "color-order" attribute
- fixing a possible race condition in color values

There are binaries for MAC-OS, Linux and Win32/64.

Please comment, if those are helpful for you.

And thanks to magic other Christian to bring us all this gems !

Harald

I find Tcl/Tk 9's SVG support really useful.

For my GUI applications _all_ my icons are SVG and for my buttons'
and menu items' -image I use this tiny function:

proc icon {svg {width 0}} {
if {!$width} {
return [image create photo -file $::APPPATH/images/$svg]
}
image create photo -file $::APPPATH/images/$svg \
-format "svg -scaletowidth $width"
}

And for color menus I generate color swatches programmatically,
again using SVG:

proc swatch {color size} {
const R [expr {max(3, $size / 4.0)}]
const W [expr {$R + 2.5}]
const SVG "<svg width=\"$size\" height=\"$size\"><rect x=\"0\"
y=\"0\" width=\"$size\" height=\"$size\" rx=\"$R\" ry=\"$R\"
fill=\"$color\" stroke-width=\"$W\" stroke=\"white\"></svg>"
image create photo -data $SVG
}

The only caveat is that for icons that contain text I must (once
each) load them into inkscape and for the text do "Object to Path"
so that they don't need any fonts.

Great, that it is useful for you.
Ren|- replaced BLT by generated svg to render high quality anti-aliased
graphs on the fly.

If you look to Csabas work in Tk, some icon colors are also modified on
the fly, for example on dark themes.

Yes, the missing font support is often demanded, beside some color
shading options. There are TkSVG hooks to parse the font information and
to paint the font components externally. Nevertheless, this is currently
not implemented. I also use Inkscape.

And I think, the new paint-order is also useful.

Thanks for all,
Harald
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