A shortcut for forcing a redraw when setting a property

[trevordevore]

I'm finding that I'm having to write lots of setProps that just assign the value passed in to a property and then force a redraw. This gets a little redundant. It would be nice if we could somehow specify that the control should be redrawn whenever a property is set. Maybe something like this:

Code: Select all

property chevronYOffset       get mChevYOffset    set mChevYOffset with redraw

[LCMark]

@trevordevore: This is a really good idea

Indeed, I think there's a generalization here - the idea of a 'trigger':

Code: Select all

property myProperty get mMyProperty set mMyProperty trigger RedrawMe

Here 'RedrawMe' would be a handler something like:

Code: Select all

handler RedrawMe
  redraw all
end handler

A further extension could be to allow any statement which takes no inputs as part of the trigger clause:

Code: Select all

property myProperty get mMyProperty set mMyProperty trigger redraw all

All that being said, 'redraw' is perhaps something which should be a flag on the property itself - can you think of any other common triggers which might see use?

[trevordevore]

I like the idea of a trigger. I haven't come across any other common triggers just yet. Depending on the final implementation of the sizing conversion we are having you may want to trigger a resize when setting a property.

[LCMark]

@trevordevore: I've filed http://quality.runrev.com/show_bug.cgi?id=14901 to do with property triggers.