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[Octave-bug-tracker] [bug #53176] Variable Editor shows placeholder inst
[Octave-bug-tracker] [bug #53176] Variable Editor shows placeholder instead of the variable after executing 'clear all'
Sat, 17 Feb 2018 15:03:42 -0500 (EST)
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Follow-up Comment #1, bug #53176 (project octave):
"As a side note, if someone can explain me when the following line will be
used in the patch ?
I don't think we will want to print the statement other than a string. (for
which role== Qt::DisplayRole)"
The "subclassing" is described here:
of which the following seems most pertinent:
"Most models provide at least a textual representation of item data for the
Qt::DisplayRole, and well-behaved models should also provide valid information
for the Qt::ToolTipRole and Qt::WhatsThisRole. Supporting these roles enables
models to be used with standard Qt views. However, for some models that handle
highly-specialized data, it may be appropriate to provide data only for
I think what this means is that Qt entities like QTextEdit handle data in a
general way where some of its features may want a tooltip representation of
the data, or an icon representation of the data, etc. In this case Octave is
being a bit incomplete in just putting and X for any other role other than
displaying it, say, in a QTextEdit window.
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