comp.lang.idl-pvwave archive - RDF feed
type: channel
description: Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
items: Re: widget_label bug in IDL 5

Re: widget_label bug in IDL 5
type: item
description: Jean-Yves BROCHOT wrote: > > I built this little based widget application in IDL 5 > >> base = WIDGET_BASE( /COLUMN, /BASE_ALIGN_CENTER) >> label = widget_label(base, xsize=300) >> b1 = WIDGET_BASE(base, /ROW, /BASE_ALIGN_CENTER) >> draw1 = widget_draw(b1, xsize=200, ysize=100) >> draw2 = widget_draw(b1, xsize=200, ysize=200) >> widget_control, base, /realize > > now, if I send the command > >> widget_control, label, set_value='I have moved' > > the widget_base base is resized of 4 pixels on X and Y. > > If I do the same in IDL 4, application don't resize. > > If somebody know how I can avoid this resizing, I'm interessed. > > thanks. Jean-Yves - This is definitely a bug in IDL 5.0. You can work around this problem for now by using: widget_control, base, update=0 widget_control, label, set_value='I have moved' widget_control, base, update=1 RSI has confirmed that this is indeed a problem. Our programs would resize themselves so that the buttons, sliders etc. would be off the screen! You might want to check David Fanning's web page to look for a pretty comprehensive list of bug reports and their replies. Dave -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~ David S. Foster Univ. of California, San Diego Programmer/Analyst Brain Image Analysis Laboratory foster@bial1.ucsd.edu Department of Psychiatry (619) 622-5892 8950 Via La Jolla Drive, Suite 2200 La Jolla, CA 92037 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
creator: David Foster
date: 1997-08-08T07:00:00-00:00

Re: widget_label bug in IDL 5
type: item
description: brochot@cnrs-orleans.fr (Jean-Yves BROCHOT) wrote: >> base = WIDGET_BASE( /COLUMN, /BASE_ALIGN_CENTER) >> label = widget_label(base, xsize=300) >> b1 = WIDGET_BASE(base, /ROW, /BASE_ALIGN_CENTER) >> draw1 = widget_draw(b1, xsize=200, ysize=100) >> draw2 = widget_draw(b1, xsize=200, ysize=200) >> widget_control, base, /realize > > now, if I send the command > >> widget_control, label, set_value='I have moved' > > the widget_base base is resized of 4 pixels on X and Y. > > If I do the same in IDL 4, application don't resize. > > If somebody know how I can avoid this resizing, I'm interessed. Me too! Same problem here. It helps sometimes not to change the label's size. I use a monospaced font and initialize my labels with something like VALUE=' ', and don't change the number of characters later. Similar problem: try adding another base to the bottom of your widget. Again, the whole widget is resized. Not always, but often enough. Even labels become bigger in both X and Y direction. Alex -- Alex Schuster Wonko@weird.cologne.de PGP Key available alex@pet.mpin-koeln.mpg.de
creator: wonko
date: 1997-08-11T07:00:00-00:00