Crash in vr3

[Edward K. Ream]

After starting vr3, I get the following when changing nodes, even after vr3-hide:

RuntimeError: wrapped C/C++ object of type QToolBar has been deleted

Traceback (most recent call last):

  File "c:\leo.repo\leo-editor\leo\core\leoPlugins.py", line 322, in callTagHandler
    result = handler(tag, keywords)

  File "c:\leo.repo\leo-editor\leo\plugins\viewrendered3.py", line 1345, in update
    self.show_toolbar()

  File "c:\leo.repo\leo-editor\leo\plugins\viewrendered3.py", line 2714, in show_toolbar
    if _toolbar and _toolbar.isHidden():

Edward

[Thomas Passin]

I get that too, sometimes, and I don't know why yet.  On my system(s), VR3 keeps working even after that, though the same thing sometimes gets raised over and over, after it happens once.

On my copy, I have changed the position of a try statement to catch this and at least be a little calmer about printing an error message.

The new code reads:

def show_toolbar(self):
    try:
        _toolbar = self.vr3_toolbar
    except RuntimeError as e:
        g.es(f'show_toolbar(): {type(e)}: {e}')
        return

    try:
        if _toolbar and _toolbar.isHidden():
            _toolbar.setVisible(True)
    except RuntimeError as e:
        g.es('show_toolbar(): %s: %s' % (type(e), e))

As I say, this does not *cure* the problem, it just calms things down a little.

[Edward K. Ream]

On Wed, Mar 25, 2020 at 9:34 AM Thomas Passin <tbp1...@gmail.com> wrote:

I get that too, sometimes, and I don't know why yet.  On my system(s), VR3 keeps working even after that, though the same thing sometimes gets raised over and over, after it happens once.

On my copy, I have changed the position of a try statement to catch this and at least be a little calmer about printing an error message.

Ok. Thanks.

Edward