[OpenLayers-Dev] Wanted: a generic control wrapper

[Cameron Shorter]

Sounds like you are asking for a ToolBar or ControlBar.
A ToolBar shows an array of Tool Icons. When you select a tool, you get 
a Control popup, or you change the way a Control works.

The entire Toolbar should be able to be hidden or expanded.

There should be a distinction between the different types of buttons.
They can be:
* 2 State - on/off, multiple tools can be selected at once
* Radio buttons - on/off, pressing one button deselects other radio buttons
* One Shot

(I'm also interested in this sort of functionality)

Ludwig Max Brinckmann wrote:
> I find that there is a little too much combination of 'business-logic' 
> and presentation in the way the LayerSwitcher is implemented. One aspect 
> of it is the actual layer control, but the other is just having a 
> control that can be opened and closed.
> 
> I do not know if you have considered separating the two, so that there 
> would be a generic control, which would set up the open/close 
> functionality and have some ways of positioning it on the page plus a 
> control over the size when opened.
> A second bit of functionality would be e.g. the layerswitcher, which 
> would simply fill a div in the generic control and to which the generic 
> control would delegate when redrawing the contents.
> This would make it easier to develop custom controls that one could fill 
> with additional functionality, with a shared behaviour/appearance on the 
> screen.
> 
> I hacked out some simple stuff that I just need for a demo here, but you 
> can see the base idea at
> http://iceds.ge.ucl.ac.uk/OL/control.html
> 
> On the right hand side are three controls, the top a variation of the 
> layerswitcher, the bottom two browsers that will allow adding a layer to 
> OpenLayers by clicking on a WMS Layer. All three controls just use the 
> same dummy control to handle the opening and there are ways to set the 
> size and position....
> 
> (The green sliders in the layerswitcher are supposed to enable a user to 
> adjust the opacity of a layer, but somehow the sliders do not get the 
> mouse focus, as the map dragging monopolises it. The layers are also 
> supposed to be restackable using scriptaculous sortable, but in this 
> version it does not work for the same reason).
> 
> I have only tested this on firefox (it does not work at all on IE) and 
> there a quite a few bugs in it, but I thought submitting the idea to get 
> some more input on how this could be done in the most generic fashion.
> 
> Ludwig
> 
> 
> 
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-- 
Cameron Shorter
http://cameron.shorter.net