Bell System

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Profile for Omar Rizwan. Username @omar, social.omar.website. Role: admin

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"The program should, in some way, expand the concept of what computer paint programs are, as well as what mark making can be."

Joined on Dec, 2022. 805 posts. Followed by 297. Following 153.

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Omar Rizwan . @omar,

woah -- it's like it's an intermingling of levels of abstraction (the world of display and pixels vs. the world of characters and text)

Function: pixel-fill-region start end pixel-width ¶ Most Emacs buffers use monospaced text, so all the filling functions (like fill-region) work based on the number of characters and char-width. However, Emacs can render other types of things, like text that contains images and using proportional fonts, and the pixel-fill-region exists to handle that. It fills the region of text between start and end at pixel granularity, so text using variable-pitch fonts or several different fonts looks filled regardless of different character sizes. The argument pixel-width specifies the maximum pixel width a line is allowed to have after filling; it is the pixel-resolution equivalent of the fill-column in fill-region. For instance, this Lisp snippet will insert text using a proportional font, and then fill this to be no wider than 300 pixels: (insert (propertize "This is a sentence that's ends here." 'face 'variable-pitch)) (pixel-fill-region (point) (point-max) 300)
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