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org-latex-preview: Add imagemagick support 

* lisp/org-latex-preview.el (org-preview-latex-process-alist,
org-preview-latex--create-tex-file, org-preview-precompile):
Add a new entry `:latex-precompiler' to
`org-preview-latex-process-alist', and tweak imagemagick-specific
`:image-converter' entries.  The function `org-preview-precompile' now
accepts two arguments.  Extra processing info is used to find the
right precompilation command.
This commit is contained in:
Karthik Chikmagalur 2022-12-29 02:31:18 -08:00 committed by TEC
parent 7bc9de054a
commit 69265adff0
Signed by: tec
SSH Key Fingerprint: SHA256:eobz41Mnm0/iYWBvWThftS0ElEs1ftBr6jamutnXc/A
1 changed files with 12 additions and 5 deletions
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lisp/org-latex-preview.el
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@ -136,6 +136,7 @@ All available processes and theirs documents can be found in
:image-output-type "png"
:image-size-adjust (1.0 . 1.0)
:latex-compiler ("latex -interaction nonstopmode -output-directory %o %f")
:latex-precompiler ("latex -ini -jobname=%b \"&latex\" mylatexformat.ltx %f")
:image-converter ("dvipng --follow -D %D -T tight -o %B-%%09d.png %f")
:transparent-image-converter
("dvipng --follow -D %D -T tight -bg Transparent -o %B-%%09d.png %f"))
@ -151,6 +152,7 @@ All available processes and theirs documents can be found in
:image-output-type "svg"
:image-size-adjust (1.4 . 1.2)
:latex-compiler ("latex -interaction nonstopmode -output-directory %o %f")
:latex-precompiler ("latex -ini -jobname=%b \"&latex\" mylatexformat.ltx %f")
:image-converter ("dvisvgm --page=1- --no-fonts --bbox=preview --scale=%S -o %B-%%9p.svg %f"))
(imagemagick
:programs ("latex" "convert")
@ -160,8 +162,9 @@ All available processes and theirs documents can be found in
:image-output-type "png"
:image-size-adjust (1.0 . 1.0)
:latex-compiler ("pdflatex -interaction nonstopmode -output-directory %o %f")
:latex-precompiler ("pdftex -ini -jobname=%b \"&pdflatex\" mylatexformat.ltx %f")
:image-converter
("convert -density %D -trim -antialias %f -quality 100 %O")))
("convert -density %D -trim -antialias %f -quality 100 %B-%%09d.png")))
"Definitions of external processes for LaTeX previewing.
Org mode can use some external commands to generate TeX snippet's images for
previewing or inserting into HTML files, e.g., \"dvipng\". This variable tells
@ -632,7 +635,9 @@ The path of the created LaTeX file is returned."
"\n\\usepackage[active,tightpage,auctex]{preview}\n")))
(with-temp-file tex-temp-name
(insert (if org-preview-use-precompilation
(concat "%&" (org-preview-precompile header))
(concat "%&"
(org-preview-precompile
processing-info header))
header))
(insert "\n\\begin{document}\n")
(dolist (str preview-strings)
@ -762,7 +767,10 @@ The path of the created LaTeX file is returned."
(write-region nil nil svg-file nil 0)))))
(org-latex-preview--cleanup-callback nil nil extended-info))
(defun org-preview-precompile (header)
;; TODO: Switching processes from imagemagick to dvi* with an existing
;; dump-file during a single Emacs session should trigger
;; re-precompilation with the new precompile command.
(defun org-preview-precompile (processing-info header)
"Precompile/dump LaTeX HEADER (preamble) text.
This dump is named using its sha1 hash and placed in
@ -786,8 +794,7 @@ process."
(insert header "\n\\endofdump\n"))
(file-name-base
(org-compile-file
header-file
'("latex -ini -jobname=%b \"&latex\" mylatexformat.ltx %f")
header-file (plist-get processing-info :latex-precompiler)
"fmt")))))
(defun org-preview-latex--tex-styled (value options &optional html-p)