Hi Chuck, I won't go over the arguments again as to why I think SVG is the wrong language for this. If you are interested, an old post summarises some of the debate, in "Loosely Couple Objects and Declarative Programming":
<http://internet-apps.blogspot.com/2004/11/loosely-coupled-objects-and.html> The platform we are building does exactly what you describe, and in fact there is even a thermometer widget in the current download of Sidewinder, available from our site: <http://www.formsPlayer.com/> (Other demos include a calculator with aqua buttons, digital clocks, analogue clocks showing the time around the world, Wiki pictures of New York tourist attractions overlaid onto Terraserver maps...you get the idea!) However, the main reason I wanted to comment, is that we have also just posted some screenshots of much more complex controls, made up in turn of other controls: <http://internet-apps.blogspot.com/2005/11/platform-20.html> For example, we show how easy it is to put together a 'Flickr strip'--a set of images based on the same tag. This strip is made up of 'Flickr thumbnails', which in turn comprise the actual Flickr image, overlaid with an SVG analogue clock that shows the time the photo was taken. Moving the mouse over the clock makes it larger. This is all an amalgam of XHTML, XForms, SVG and XBL. It is *not* the same as writing everything in some SVG widget library, or even a 'Flash library', as seems to be the trend at the moment. It's far more powerful and flexible than that. (For example, each embedded widget can make its own web service requests via XForms, allowing it to get further information if needed. This technique is used to retrieve Technorati information about the author of a blog, whilst you are navigating.) I hope that shows you what is possible, and that in fact the programming model you described is entirely possible. Regards, Mark Mark Birbeck CEO x-port.net Ltd. e: [EMAIL PROTECTED] t: +44 (0) 20 7689 9232 w: http://www.formsPlayer.com/ Download our XForms processor from http://www.formsPlayer.com/ > -----Original Message----- > From: svg-developers@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of Chuck > Sent: 07 November 2005 01:31 > To: svg-developers@yahoogroups.com > Subject: [svg-developers] SVG1.2 When???? > > I am fairly new to the SVG community so this question may be > out of ignorance... when will SVG1.2 and Rendering Custom > Content spec be an official recommendation and when will the > major players implement it? > > One feature I sorely need in SVG is the ability to create > widget libraries who's trees are visible when they are > instantiated in a document. For example, I would want to > define a thermometer widget > (symbol) in an external file that will be included > (instantiated) in one or more documents. While in the > document I want to be able to dynamically change the graphic > that indicates the current temperature. > Furthermore, I'd like all instatinations of the thermometer > widget to update should the template widget (look) be > modified (so as reduce maintenance requirements). > > Currenlty, with symbols, the children are not visible. 1.2 > has a "Rendering Custom Content" specification that may solve > this issue (via shadow tree). > > Love to hear feedback on this. > > > > > > > ------------------------ Yahoo! Groups Sponsor > --------------------~--> Get Bzzzy! (real tools to help you > find a job). Welcome to the Sweet Life. > http://us.click.yahoo.com/A77XvD/vlQLAA/TtwFAA/1U_rlB/TM > -------------------------------------------------------------- > ------~-> > > ----- > To unsubscribe send a message to: > [EMAIL PROTECTED] > -or- > visit http://groups.yahoo.com/group/svg-developers and click > "edit my membership" > ---- > Yahoo! Groups Links > > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/TtwFAA/1U_rlB/TM --------------------------------------------------------------------~-> ----- To unsubscribe send a message to: [EMAIL PROTECTED] -or- visit http://groups.yahoo.com/group/svg-developers and click "edit my membership" ---- Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
