| Compound Widgets [message #67798] |
Sat, 29 August 2009 06:49 |
weclifton
Messages: 12
Registered: May 2007
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Junior Member |
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Hi,
I've been creating my own widgets sucessfully for a while but want
to leverage existing compound widgets for common tasks (duh). My
problem is I do not understand how to incorporate them into my
applications -- for example, I would like to use the cw_light_editor.
I add it to a base widget (triggered by a menu event):
Pro edit_lighting, event
;Retreive pointer to structure of parameters to be passed between
events
Widget_Control, event.top, GET_UVALUE=info
;Create base widget for light editor
lightingBase=Widget_Base(COLUMN=1, TITLE='Lighting', GROUP_LEADER=
(*info).tlb, UNAME='lightingBase')
;Create compound widget, add my light object
lightEditor = cw_light_editor(lightingBase, light=(*info).oLight0)
;Realize the base/compound widget
Widget_Control, lightingBase, /REALIZE
End
My light object is simply:
;Create light object (oLight0 is added to the parameter structure)
oLight0 = Obj_New('IDLgrLight')
;Set some properties
oLight0->SetProperty, $
INTENSITY= 0.500000, $
LOCATION= [10.0000000, 10.0000000, 20.0000000], $
TYPE= 2 ;Directional
;Add the light to my model object
oModel->Add, oLight0
When I run this, my application freezes and IDL throws a fatal error.
What am I doing wrong? I've looked at the xdice.pro example and David
Fanning's book, but still can't figure out what is going on.
Thanks,
Bill
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