CEGUI (Crazy Eddie's GUI) Forums

this question is nothing but just a little personal curiosity.current format is okay,but i just think...

currently our layout format is


i don`t understand why don`t we do it this way:

or this way:


i just don`t understand what`s the point of <Property> as a xml element.seems it just a key-value pair,but the xml attributes is already naturally enumeratable key-value pairs.

and also a little question about udim,doesn`t "10%" and "10px" looks more comfortable than "{10,0}" and "{0,10}" for ui designers ?

Hi, interesting question

The main reason is one of validation. As you may (or may not) know, we support schema validation of our XML files via use of the Xerces-c++ XML parser - this way it's possible to check that things are largely correct as the XML is parsed (as well as enabling us to provide tools that can validate XML ahead of time). The upshot of this is that all element and attribute names need to be known ahead of time so they can be put into the .xsd files used for validation. For properties this is impossible since they can be added at any time by various means.

In regards to the 10% and 10px thing, yes it's easier for a human (or even a UI designer - those guys aren't human ) to understand and perhaps the tools should definitely employ that approach in the future. I don't think the XML should necessarily be changed to incorporate that since the XML is really supposed to be for automated / machine consumption (no, really!), whereas the tools are the human interface to the XML, so those could / should present the info in that manner.

CE.

PS. I know there's not a 'full set' of tools at the moment, but it's a work in progress

hi CE,
i understood now,thank you for the explanation.
and best wish for your toolset working.