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(Experimental) Improve Sixel graphics support (#2544)

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Progress:

* Sixel image can now be displayed with other text, and is scrollable
* If an image can't be displayed entirely due to the scroll offset, fzf
  will render a wireframe to indicate that an image should be displayed
* Renamed $FZF_PREVIEW_{WIDTH,HEIGHT} to $FZF_PREVIEW_PIXEL_{WIDTH,HEIGHT}
  for clarity
* Added bin/fzf-preview.sh script to demonstrate how to display an image
  using Kitty or Sixel protocol

An example:

  ls *.jpg | fzf --preview='seq $((FZF_PREVIEW_LINES*9/10)); fzf-preview.sh {}; seq 100'

A known issue:

* If you reduce the size of the preview window, the image may extend
  beyond the preview window
This commit is contained in:
Junegunn Choi
2023-10-26 00:22:28 +09:00
parent bac385b59c
commit d02b9442a5
10 changed files with 169 additions and 93 deletions
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6
src/tui/light_unix.go
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@@ -110,10 +110,10 @@ func (r *LightRenderer) getch(nonblock bool) (int, bool) {
return int(b[0]), true
}
func (r *LightRenderer) Size() (termSize, error) {
func (r *LightRenderer) Size() TermSize {
ws, err := unix.IoctlGetWinsize(int(r.ttyin.Fd()), unix.TIOCGWINSZ)
if err != nil {
return termSize{}, err
return TermSize{}
}
return termSize{int(ws.Row), int(ws.Col), int(ws.Xpixel), int(ws.Ypixel)}, nil
return TermSize{int(ws.Row), int(ws.Col), int(ws.Xpixel), int(ws.Ypixel)}
}