[udig-devel] Adding images or icons on a layer and detect them

[Frederic Renard]

Hi all,

 

I'm new to RCP and uDIG. 

I want to add images or icons on a layer (dynamicaly), and when the
mouse fly over this image (or icon) I want to display informations about
this icon.

I already created a extention to
net.refractions.udig.mapgraphics.mapgraphic  plugin who received data
dynamicaly and draw a circle at a position. 

I add a backgroundtool to net.refractions.udig.project.ui.tool. This
backgroundtool is responsible  to get mouse position , check if this is
a particular position (exactely icon position)  , and if it is, display
a message.

But my  backgroundtool 'overwrite' the initial uDig backgroundtools
(net.refractions.udig.tools.internal.ScrollZoom ,
net.refractions.udig.tools.internal.CursorPosition and
net.refractions.udig.tools.internal.PanMiddleMouse), .. and don't work.

 

My questions are :

- Is it possible to add a background tool to existing ones ? ( and if
the response is 'yes': how? )

- is it the right method to dynamicaly extract mouse position and doing
some actions ?

 

Best regards,

 

Frederick.

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