Commits on Aug 27, 2023

1. feat(backend): backend provides window_size, add Size struct …

   For image (sixel, iTerm2, Kitty...) support that handles graphics in
   terms of `Rect` so that the image area can be included in layouts.
   
   For example: an image is loaded with a known pixel-size, and drawn, but
   the image protocol has no mechanism of knowing the actual cell/character
   area that been drawn on. It is then impossible to skip overdrawing the
   area.
   
   Returning the window size in pixel-width / pixel-height, together with
   colums / rows, it can be possible to account the pixel size of each cell
   / character, and then known the `Rect` of a given image, and also resize
   the image so that it fits exactly in a `Rect`.
   
   Crossterm and termwiz also both return both sizes from one syscall,
   while termion does two.
   
   Add a `Size` struct for the cases where a `Rect`'s `x`/`y` is unused
   (always zero).
   
   `Size` is not "clipped" for `area < u16::max_value()` like `Rect`. This
   is why there are `From` implementations between the two.

   

   benjajaja committed Aug 27, 2023
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