Mark Heckmann <mark.heckmann <at> gmx.de> writes:
>
> Hi all,
>
> I have a gtable and a ggraphic widget.
> I want to drag an element from the table onto the graphic.
> When the drag object is released over the ggraphic widget, I want the
> mouse coordinates inside the ggraphic to be returned.
> Right now I do not know how to get the mouse ccordinates of the
> ggraphic widget at any given time.
> How can I access the ggraphics mouse coordinates?
>
The handler has h$x and h$y components to do this. In your code
(which I clipped to save space) you might
look at:
defHandlerTarget = function(h, ...){
theArgs <- list(...)
w <- theArgs[[1]]
allocation = w$GetAllocation()
## h$x, h$y give x,y coords for g
x = h$x/allocation$width
y = 1 - (allocation$height - h$y)/allocation$height
print(c(x,y))
}
If that doesn't help, let me know.
> Below you find my sample code (windows only due to ggraphics).
>
(The ggraphics widget works with linux and mac too, although the mac can have
issues with some installations.)
> TIA,
> Mark
>
..snip..
> –––––––––––––––––––––––––––––––––––––––
> Mark Heckmann
> Dipl. Wirt.-Ing. cand. Psych.
> Vorstraße 93 B01
> 28359 Bremen
> Blog: www.markheckmann.de
> R-Blog: http://ryouready.wordpress.com
>
>
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