Advice on XML editor development
peter at ursus.demon.co.uk
Mon Apr 27 23:06:54 BST 1998
At 21:30 27/04/98 +0800, James K. Tauber wrote:
>What I am envisaging is a generic editor that given an editing sheet for
>MathML would become an equation editor or given an editing sheet CML would
>enable editing of molecular structure diagrams. Of course, such editing
>sheets would include code but that code would presumable have a lot of
>overlap with the code attached to XSL stylesheets for display. I would
>imagine Java Classes, for example with both display and editing interfaces
>for this purpose.
I have thought about this a lot and have been working on about the third
version for CML support. Say we are working at a node-centered level - e.g.
the DOM/JUMBO or whatever knows about <MOL>...</MOL> but there is no point
in either a tree- or eventstream display or editing of the children. We
click on <MOL> and might expect the following types of functionality:
- display() // to anywhere , probably a new JFrame
- getDisplayComponent(boolean editable) // returns a JComponent which
// can be embedded in a TabbedPane, Table, etc.
- highlight(String foreignAddress); highlights a subcomponent of the
object (e.g. an atom in a molecule)
- drawToGraphics(Graphics g, Scaler s);
// draw onto an exiting graphics so that many objects can be rendered.
Scaler is a GKS-like scaling (I expect Java2D will supersede that)
This could be very general - it would allow a molecule and a maths eqn to
be draw to the same surface, either to be edited, parts of them to be
I am reasonably confident this will work - if others are interested in
following this discussion I'd be delighted.
>Is anyone working on this sort of thing?
>James Tauber / jtauber at jtauber.com
>Perth, Western Australia
>XML Pages: http://www.jtauber.com/xml/
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