[comp.windows.x.motif] ScrolledText bug?

lystad@skvax1.csc.ti.com (05/17/91)

  I am using X11R4 and Motif 1.1 on a Sparc Station 1+.  I have created  a
Scrolled Text widget  using XmCreateScrolledText.   The text  displayed is
one large string consisting of lines that are wider than the display by as
little as fifty characters  or by almost  as much as  500 characters.  The
text is editable, but  when I insert  characters on a  line it disappears,
though  it  may  take  the  addition  of  several  characters  before   it
disappears.  The line  isn't really  gone, however.   Each time  I type  a
character the portion of the  line after the cursor  blinks in and out  of
view.  (I don't remember whether or not the portion of the line before the
cursor does too or not.) Also, scrolling slowly horizontally will  restore
the portions of the line that  come back onto the screen.   Fast scrolling
often doesn't work.

  I have created a little menu that  allows the font to be changed  on the
above scrolled text window.  I've used XtSetValues on XmNfontList.  With a
fixed width font of width greater than 6, many of the lines will only show
from the  first  half  letter  to  occasionally  as  much  as half a dozen
letters.  Many  of  the  lines  are  shown  completely,  however.   I have
observed that it is  not always the  same lines that  are show completely,
and the amount of a given line that cannot be seen varies.  Often, though,
consecutive lines will have  the same fraction  shown.  This happens  both
when I change font initially and when  I scroll with the larger fonts.   I
have also observed the same problem with all of the larger variable  width
fonts that I've tried.  Scrolling in either direction can restore a  given
line, though vertical scrolling often doesn't.

  If you can help me with these problems please respond by email.  Thanks.

          Garr Lystad