Re: [Springframework-developer] GUI validation feedback

[Sam N. <sam...@ma...>]

Oh, I should point out that I would expect such an API to ship with a 
few template types, such as an Abstract base class for convenience, and 
classes displaying the validation information on a JLabel to the left, 
right, above and below a control, along with some measure of 
customization (text colour, font size etc). At present I am unsure to 
replace the notion of a TemplateClass with a TemplateFactory, as this 
seems to make a little more sense to me.

Sam Newman wrote:

> I've been thinking about the issue of feeding back validation 
> information to desktop applications (think: SWT or Swing) for 
> spring-rcp. If we take Struts as an example, we need:
> 
> 1. General message areas
> 2. Field specific feedback
> 
> So, if you are filling in a form and don't fill in a required field, you 
> really want an message to that affect next to the field. The problem is 
> that you do not want to require that the user define each and every 
> location for errors - it would be nice if you could just define simple 
> JTextFields, JLabels etc. and identify them as fields.
> My proposed solution is to add a Factory, which is capable of taking a 
> control (field, combobox, list etc) and a optional template, which then 
> produces a Component which includes the field and an for feedback which 
> will be propagated. The template will be a component which defines where 
> the field can be and where the message will be. I suggest the following 
> API:
> 
> void addTemplate(Class componentClass, FeedbackTemplate template)
> void setDefaultTemplate(FeedBackTemplate template);
> 

<snip>


-- 
sam
http://www.magpiebrain.com/