Smalltalk - Re: [Ann] DragPanels: Floating palette windows with drag-and-drop in Morphic

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Re: [Ann] DragPanels: Floating palette windows with drag-and-drop in Morphic

Posted by Nicolai Hess on Jun 29, 2015; 12:17pm
URL: https://forum.world.st/Ann-DragPanels-Floating-palette-windows-with-drag-and-drop-in-Morphic-tp4834283p4834586.html

2015-06-29 12:16 GMT+02:00 Stephan Eggermont <[hidden email]>:

On 29-06-15 10:26, Hannes Hirzel wrote:

Thank you, Stephan, for providing a well worked out example continuing where
Morphic tutorials normally end. This is a real need to unearth functions
which have been there fore years but mostly unused.

The two video clips document the use cases of the code nicely.

A question not answered yet is: How do I export the panel with the cards as
an SVG file?

Hmm. What would be the best way to do that?
- I assume in Bloc with Cairo I should be able to use an SVGCanvas?

There is no SVGCanvas. Only AthensCanvas with different possible backends (only cairo and balloon for now)

- SVG is pretty simple, I could just walk the morph tree and generate a file.

Yes, but clipping may be an issue, and any Morph with a slightly more advanded drawing method (like lists)

may be more difficult. And you need a way to convert patterns/images to something that can be included

in a svg file.

- Roassal2 has SVG export. I could generate a Roassal image and export that.

Roassal is based on its own drawing/shape library (Trachel). Yes Trachel uses Athens, but trachels

svg export does not (AFAIK).

Stephan