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bug#19972: Font size change doesn't update (window-total-width)

From: Jan D.
Subject: bug#19972: Font size change doesn't update (window-total-width)
Date: Mon, 02 Mar 2015 18:42:56 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.5.0


Eli Zaretskii skrev den 2015-03-02 14:27:
From: Steve Purcell <address@hidden>
Date: Mon, 2 Mar 2015 07:57:26 +0000

- Consider the case of full-screen frames, which never change in pixel size.

They do for me.  See the previous messages.

So there really shouldn’t be any assumption that the frame size will 
necessarily change when the font changes.

In this case, Emacs itself changes the frame size, so it can expect it
to change.

In X you can never be sure. You can request a frame change but it can be denied. For example, fullscreen or tiling window manager. There should be no assumption that what Emacs request w.r.t. frame size actually occurs.

I think there's some X event due to the window manager that then
resizes the frame back, but we either don't react to it, or somehow
interpret it incorrectly.

No, the window manager denies the original frame resize. There is no "resizing back".

        Jan D.

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