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Re: Calculate window size in pixels
From: |
Ehud Karni |
Subject: |
Re: Calculate window size in pixels |
Date: |
Mon, 9 May 2005 14:02:21 +0300 |
On 06 May 2005 17:40:41 +0200, Mathias Dahl wrote:
>
> (defun window-height-pixels ()
> (let ((line-pixel-height-ratio (/ (+ (frame-pixel-height) 0.0)
> (frame-height))))
> (truncate (* (window-height) line-pixel-height-ratio))))
>
> (defun window-width-pixels ()
> (let ((column-pixel-width-ratio (/ (+ (frame-pixel-width) 0.0)
> (frame-width))))
> (truncate (* (window-width) column-pixel-width-ratio))))
I think that `frame-char-height' and `frame-char-width' is what you
are looking for.
I use the following to change the font without resizing the frames. This uses
only the `editable' part of the frame - without the border and menus areas.
(defun set-font-keep-size (font)
"set font to use, keep window size"
(let ((fht (* (frame-parameter nil 'height) (frame-char-height)))
(fwd (* (frame-parameter nil 'width) (frame-char-width))))
(set-default-font font)
(set-frame-value-all 'font font)
(set-frame-value-all 'height (/ fht (frame-char-height)))
(set-frame-value-all 'width (/ fwd (frame-char-width)))))
`set-frame-value-all is my function to set a value on all frames.
Ehud.
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