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bug#18195: 24.3.92; window-screen-lines is not accurate

From: Dmitry Gutov
Subject: bug#18195: 24.3.92; window-screen-lines is not accurate
Date: Tue, 05 Aug 2014 14:03:37 +0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0

On 08/05/2014 12:38 PM, martin rudalics wrote:


mentioned in that thread, all you want is to display all lines of a
completion buffer.  Is that correct?

Not at all. Have you tried Company?

This issue is about completion popup, which displays completions in the current buffer and window, in a rectangle rendered using an overlay. There are screenshots in that issue thread.

Before the popup is rendered, we need to determine how much of it would fit below the current line, and if there's not enough space, we render it above the current line.

Even if the buffer is shorter than the window, we can temporarily pad it, so when calculating the height of the window, we need to take the whole of it into account. That's why `count-screen-line' doesn't seem like a good approach either.

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