| Problem with scrollable draw widgets and frames [message #11461] |
Mon, 13 April 1998 00:00 |
Dyer Lytle
Messages: 11
Registered: April 1996
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Junior Member |
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Hi all,
I had an interesting problem today with a program which was
giving me an error I don't understand. I've condensed the
program and included it below. The program pops up a small
widget with a 'pushme' button. When I push the button, the
program attempts to pop up another widget containing a scrollable
graphics window but it dies in the attempt. This is IDL 5.03
and/or IDL 5.1 Beta running on a Sun Ultra-2 with the Solaris
operating system.
The funny thing is, if I remove the "frame = 1" keyword from the
draw widget definition, it works fine!
I don't know if this is platform specific, perhaps it is. Anyway
the error message I get is (and I get dumped out of IDL!):
------------------------------------------------------------ -------
IDL> test
% Compiled module: TEST.
% Compiled module: XMANAGER.
Warning:
Name: VertScrollBar
Class: XmScrollBar
The scrollbar page increment is less than 1.
Warning:
Name: HorScrollBar
Class: XmScrollBar
The scrollbar page increment is less than 1.
Error: Widget ScrolledWindowClipWindow has zero width and/or height
------------------------------------------------------------ --------
The program code is the following:
------------------------------------------------------------ --------
pro test2, leader
a = Widget_Base(Title='test', /Column, Group_Leader=leader, /Modal)
d = Widget_Draw(a, $
frame = 1, $
XSize=100, YSize=100, /Scroll, X_Scroll_Size=50, Y_Scroll_Size=50)
Widget_Control, a, /Realize
end
pro x_event, event
test2,event.top
end
pro test
x = Widget_Base(Title='test', /Column, XOffset=200, YOffset=200)
y = Widget_Button(x, Value='pushme')
Widget_Control, x, /Realize
Xmanager, 'x', x, Event_Handler='x_event'
end
------------------------------------------------------------ --------
Anybody know what I'm doing wrong or if this is a known bug?
Thanks,
-Dyer
--
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Dyer Lytle
dlytle@as.arizona.edu
http://tigger.as.arizona.edu/~dlytle
HST NICMOS Project
Steward Observatory
University of Arizona
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