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bug#18528: 24.3.93; Crash during restoration of frameset from desktop
From: |
martin rudalics |
Subject: |
bug#18528: 24.3.93; Crash during restoration of frameset from desktop |
Date: |
Tue, 23 Sep 2014 18:15:49 +0200 |
>> We have to check these values anyway because our window structure might
>> be too complex to fit into the rectangle returned by GetClientRect.
>
> Sorry, I don't think I understand this. GetClientRect just returns
> the dimensions of our frame, it doesn't know anything about Emacs
> windows.
If all values returned by GetClientRect are zero, it's all to obvious
that our windows won't fit. But if, for example, rect.right - rect.left
is too small to fit our windows, we face a similar same problem and have
to handle that anyway. So I'm not sure whether we should separately
deal with the case where all rectangle values are zero.
>> I never got around to ask you: Do you anywhere see a need to round up
>> the values of new_cols and new_lines in cases like this?
>
> Yes, I think so. I think the reason we didn't see any problems with
> that is that GUI windows always over-allocate their glyph matrices, to
> be prepared for dealing with the smallest possible font, which is
> rarely if ever used. But I think if you actually use that smallest
> font for the default face, you will see the problem.
I thought it's not needed because in required_matrix_width we use the
pixel width when HAVE_WINDOW_SYSTEM is defined.
> (Just make sure you don't round up for TTY frames, so as not to add
> one extra row there.)
martin
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, Eli Zaretskii, 2014/09/22
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, martin rudalics, 2014/09/22
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, Eli Zaretskii, 2014/09/22
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, martin rudalics, 2014/09/23
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, Eli Zaretskii, 2014/09/23
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop,
martin rudalics <=
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, Eli Zaretskii, 2014/09/23
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, martin rudalics, 2014/09/23
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, Eli Zaretskii, 2014/09/23
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, Eli Zaretskii, 2014/09/23
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, martin rudalics, 2014/09/24
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, Eli Zaretskii, 2014/09/24
- bug#18528: 24.3.93; Crash during restoration of frameset from desktop, Eli Zaretskii, 2014/09/24