From: Feng Shu <tumashu@gmail.com>
To: Bastien <bzg@gnu.org>
Cc: emacs-orgmode@gnu.org
Subject: Re: [patch] Need test: New method which is used to preview latex fragements
Date: Wed, 28 Mar 2012 07:48:25 +0800 [thread overview]
Message-ID: <87iphpobau.fsf@gmail.com> (raw)
In-Reply-To: <87vclq401w.fsf@gnu.org> (Bastien's message of "Tue, 27 Mar 2012 15:59:23 +0200")
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Sorry, I change my name in commit from FengShu to Feng Shu.
Thanks for your help!
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From ef9c4ad164161c5dfde01dd5d8c3221163adb231 Mon Sep 17 00:00:00 2001
From: Feng Shu <tumashu@gmail.com>
Date: Wed, 28 Mar 2012 07:40:04 +0800
Subject: [PATCH] Adding a new method for previewing latex fragements.
* org-latex.el (org-latex-to-pdf-process): Get the latex fragements
converting command(s) from this variable, now you can save your
own latex fragments converting command(s) into this variable.
* org-latex.el (org-export-as-pdf): Deal with the changes of
'org-latex-to-pdf-process.
* org.el (org-create-formula-image-program): New defcustom, which will be
used to set the command converting pdf or dvi files to png files.
* org.el (org-create-formula-image): Change its name to
'org-create-formula-image-with-dvipng.
* org.el (org-create-formula-image-with-imagemagick): New function by
which a latex fragment can be convert to a pdf file and then
convert to a png file.
* org.el (org-latex-color): New function, which will get an rgb color
specification from default background or foreground, and using
this specification, we can define a latex color.
* org.el (org-latex-color-format): New fuction, which can translate a
color-name to specification, and using this specification, we can define a
latex color.
* org.el (org-format-latex): Add 'imagemagick support.
* org-exp.el (org-export-with-LaTeX-fragments): Add 'imagemagick support.
* org-html.el (org-export-html-preprocess): Add 'imagemagick support.
---
lisp/org-exp.el | 15 +++--
lisp/org-html.el | 1 +
lisp/org-latex.el | 57 +++++++++++-------
lisp/org.el | 174 ++++++++++++++++++++++++++++++++++++++++++++++++-----
4 files changed, 205 insertions(+), 42 deletions(-)
diff --git a/lisp/org-exp.el b/lisp/org-exp.el
index eeee1ce..ccf2247 100644
--- a/lisp/org-exp.el
+++ b/lisp/org-exp.el
@@ -537,12 +537,14 @@ This option can also be set with the +OPTIONS line, e.g. \"LaTeX:mathjax\".
Allowed values are:
-nil Don't do anything.
-verbatim Keep everything in verbatim
-dvipng Process the LaTeX fragments to images.
- This will also include processing of non-math environments.
-t Do MathJax preprocessing if there is at least on math snippet,
- and arrange for MathJax.js to be loaded.
+nil Don't do anything.
+verbatim Keep everything in verbatim
+dvipng Process the LaTeX fragments to images.
+ This will also include processing of non-math environments.
+imagemagick Convert the LaTeX fragments to pdf files and then use imagemagick
+ convert pdf files to png files
+t Do MathJax preprocessing if there is at least on math snippet,
+ and arrange for MathJax.js to be loaded.
The default is nil, because this option needs the `dvipng' program which
is not available on all systems."
@@ -552,6 +554,7 @@ is not available on all systems."
(const :tag "Do not process math in any way" nil)
(const :tag "Obsolete, use dvipng setting" t)
(const :tag "Use dvipng to make images" dvipng)
+ (const :tag "Use imagemagick to make images" imagemagick)
(const :tag "Use MathJax to display math" mathjax)
(const :tag "Leave math verbatim" verbatim)))
diff --git a/lisp/org-html.el b/lisp/org-html.el
index 2de2ea9..15a6c3e 100644
--- a/lisp/org-html.el
+++ b/lisp/org-html.el
@@ -685,6 +685,7 @@ The default is an extended format of the ISO 8601 specification."
((eq (plist-get parameters :LaTeX-fragments) 'verbatim) 'verbatim)
((eq (plist-get parameters :LaTeX-fragments) 'mathjax ) 'mathjax)
((eq (plist-get parameters :LaTeX-fragments) t ) 'mathjax)
+ ((eq (plist-get parameters :LaTeX-fragments) 'imagemagick ) 'imagemagick)
((eq (plist-get parameters :LaTeX-fragments) 'dvipng ) 'dvipng)
(t nil))))
(goto-char (point-min))
diff --git a/lisp/org-latex.el b/lisp/org-latex.el
index 4418dee..47be65d 100644
--- a/lisp/org-latex.el
+++ b/lisp/org-latex.el
@@ -632,11 +632,24 @@ allowed. The default we use here encompasses both."
'("pdflatex -interaction nonstopmode -output-directory %o %f"
"pdflatex -interaction nonstopmode -output-directory %o %f"
"pdflatex -interaction nonstopmode -output-directory %o %f")
- "Commands to process a LaTeX file to a PDF file.
-This is a list of strings, each of them will be given to the shell
-as a command. %f in the command will be replaced by the full file name, %b
-by the file base name (i.e. without extension) and %o by the base directory
-of the file.
+ "Commands to process a LaTeX file to a PDF file and process latex
+fragments to pdf files.By default,this is a list of strings,and each of
+strings will be given to the shell as a command. %f in the command will
+be replaced by the full file name, %b by the file base name (i.e. without
+extension) and %o by the base directory of the file.
+
+If you set 'org-create-formula-image-program to 'imagemagick or
+set 'org-export-with-LaTeX-fragments to 'imagemagick,You can add a
+sub-list which contains your own command(s) for latex fragments
+previewing,like this:
+
+ '(\"xelatex -interaction nonstopmode -output-directory %o %f\"
+ \"xelatex -interaction nonstopmode -output-directory %o %f\"
+ ;; use below command(s) to convert latex fragments
+ (\"xelatex %f\"))
+
+If not having any sublist ,the default command which is used to convert
+latex fragments will be the first string of the list.
The reason why this is a list is that it usually takes several runs of
`pdflatex', maybe mixed with a call to `bibtex'. Org does not have a clever
@@ -1084,22 +1097,24 @@ when PUB-DIR is set, use this as the publishing directory."
(funcall cmds (shell-quote-argument file))
(while cmds
(setq cmd (pop cmds))
- (while (string-match "%b" cmd)
- (setq cmd (replace-match
- (save-match-data
- (shell-quote-argument base))
- t t cmd)))
- (while (string-match "%f" cmd)
- (setq cmd (replace-match
- (save-match-data
- (shell-quote-argument file))
- t t cmd)))
- (while (string-match "%o" cmd)
- (setq cmd (replace-match
- (save-match-data
- (shell-quote-argument output-dir))
- t t cmd)))
- (shell-command cmd outbuf)))))
+ (cond
+ ((not (listp cmd))
+ (while (string-match "%b" cmd)
+ (setq cmd (replace-match
+ (save-match-data
+ (shell-quote-argument base))
+ t t cmd)))
+ (while (string-match "%f" cmd)
+ (setq cmd (replace-match
+ (save-match-data
+ (shell-quote-argument file))
+ t t cmd)))
+ (while (string-match "%o" cmd)
+ (setq cmd (replace-match
+ (save-match-data
+ (shell-quote-argument output-dir))
+ t t cmd)))
+ (shell-command cmd outbuf)))))))
(message (concat "Processing LaTeX file " file "...done"))
(setq errors (org-export-latex-get-error outbuf))
(if (not (file-exists-p pdffile))
diff --git a/lisp/org.el b/lisp/org.el
index d3b1ddc..d4b5c8a 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -3389,6 +3389,22 @@ When using MathToWeb as the converter, set this to
:type '(choice
(const :tag "None" nil)
(string :tag "\nShell command")))
+(defcustom org-create-formula-image-program 'dvipng
+ "When a org file you are editing include some latex fragments,
+you want to preview them,you can convert them into png files and
+then insert into the org buffers
+
+dvipng Process the LaTeX fragments to dvi file, then convert
+ dvi files to png files using dvipng.
+ This will also include processing of non-math environments.
+imagemagick Convert the LaTeX fragments to pdf files and then use
+ imagemagick convert pdf files to png files"
+
+ :group 'org-latex
+ :version "24.1"
+ :type '(choice
+ (const :tag "dvipng" dvipng)
+ (const :tag "imagemagick" imagemagick)))
(defun org-format-latex-mathml-available-p ()
"Return t if `org-latex-to-mathml-convert-command' is usable."
@@ -16896,7 +16912,7 @@ The images can be removed again with \\[org-ctrl-c-ctrl-c]."
(concat "ltxpng/" (file-name-sans-extension
(file-name-nondirectory
buffer-file-name)))
- default-directory 'overlays msg at 'forbuffer 'dvipng)
+ default-directory 'overlays msg at 'forbuffer org-create-formula-image-program)
(message msg "done. Use `C-c C-c' to remove images.")))))
(defvar org-latex-regexps
@@ -16960,7 +16976,8 @@ Some of the options can be changed using the variable
'(org-protected t))))
(add-text-properties (match-beginning n) (match-end n)
'(org-protected t))))
- ((eq processing-type 'dvipng)
+ ((or (eq processing-type 'dvipng)
+ (eq processing-type 'imagemagick))
;; Process to an image
(setq txt (match-string n)
beg (match-beginning n) end (match-end n)
@@ -16981,17 +16998,25 @@ Some of the options can be changed using the variable
(unless checkdir ; make sure the directory exists
(setq checkdir t)
(or (file-directory-p todir) (make-directory todir t)))
-
- (unless executables-checked
- (org-check-external-command
- "latex" "needed to convert LaTeX fragments to images")
- (org-check-external-command
- "dvipng" "needed to convert LaTeX fragments to images")
- (setq executables-checked t))
-
- (unless (file-exists-p movefile)
- (org-create-formula-image
- txt movefile opt forbuffer))
+ (cond
+ ((eq processing-type 'dvipng)
+ (unless executables-checked
+ (org-check-external-command
+ "latex" "needed to convert LaTeX fragments to images")
+ (org-check-external-command
+ "dvipng" "needed to convert LaTeX fragments to images")
+ (setq executables-checked t))
+ (unless (file-exists-p movefile)
+ (org-create-formula-image-with-dvipng
+ txt movefile opt forbuffer)))
+ ((eq processing-type 'imagemagick)
+ (unless executables-checked
+ (org-check-external-command
+ "convert" "is needed,please install imagemagick package")
+ (setq executables-checked t))
+ (unless (file-exists-p movefile)
+ (org-create-formula-image-with-imagemagick
+ txt movefile opt forbuffer))))
(if overlays
(progn
(mapc (lambda (o)
@@ -17127,7 +17152,7 @@ inspection."
latex-frag)))
;; This function borrows from Ganesh Swami's latex2png.el
-(defun org-create-formula-image (string tofile options buffer)
+(defun org-create-formula-image-with-dvipng (string tofile options buffer)
"This calls dvipng."
(require 'org-latex)
(let* ((tmpdir (if (featurep 'xemacs)
@@ -17189,7 +17214,109 @@ inspection."
nil)
;; Use the requested file name and clean up
(copy-file pngfile tofile 'replace)
- (loop for e in '(".dvi" ".tex" ".aux" ".log" ".png") do
+ (loop for e in '(".dvi" ".tex" ".aux" ".log" ".png" ".out") do
+ (delete-file (concat texfilebase e)))
+ pngfile))))
+(defun org-create-formula-image-with-imagemagick (string tofile options buffer)
+ "This calls convert, which is included into imagemagick."
+ (require 'org-latex)
+ (let* ((tmpdir (if (featurep 'xemacs)
+ (temp-directory)
+ temporary-file-directory))
+ (texfilebase (make-temp-name
+ (expand-file-name "orgtex" tmpdir)))
+ (texfile (concat texfilebase ".tex"))
+ (pdffile (concat texfilebase ".pdf"))
+ (pngfile (concat texfilebase ".png"))
+ (fnh (if (featurep 'xemacs)
+ (font-height (face-font 'default))
+ (face-attribute 'default :height nil)))
+ (scale (or (plist-get options (if buffer :scale :html-scale)) 1.0))
+ (dpi (number-to-string (* scale (floor (* 0.9 (if buffer fnh 140.))))))
+ (fg (or (plist-get options (if buffer :foreground :html-foreground))
+ "black"))
+ (bg (or (plist-get options (if buffer :background :html-background))
+ "white")))
+ (if (eq fg 'default) (setq fg (org-latex-color :foreground))
+ (setq fg (org-latex-color-format fg)))
+ (if (eq bg 'default) (setq bg (org-latex-color :background))
+ (setq bg (org-latex-color-format
+ (if (string= bg "Transparent")(setq bg "white")))))
+ (with-temp-file texfile
+ (insert (org-splice-latex-header
+ org-format-latex-header
+ org-export-latex-default-packages-alist
+ org-export-latex-packages-alist t
+ org-format-latex-header-extra))
+ (insert "\n\\begin{document}\n"
+ "\\definecolor{fg}{rgb}{" fg "}\n"
+ "\\definecolor{bg}{rgb}{" bg "}\n"
+ "\n\\pagecolor{bg}\n"
+ "\n{\\color{fg}\n"
+ string
+ "\n}\n"
+ "\n\\end{document}\n" )
+ (require 'org-latex)
+ (org-export-latex-fix-inputenc))
+ (let ((dir default-directory))
+ (condition-case nil
+ (progn
+ (cd tmpdir)
+ (setq cmds org-latex-to-pdf-process)
+ (while cmds
+ (setq latex-frags-cmds (pop cmds))
+ (if (listp latex-frags-cmds)
+ (setq cmds nil)
+ (setq latex-frags-cmds (list (car org-latex-to-pdf-process)))))
+ (while latex-frags-cmds
+ (setq cmd (pop latex-frags-cmds))
+ (while (string-match "%b" cmd)
+ (setq cmd (replace-match
+ (save-match-data
+ (shell-quote-argument texfile))
+ t t cmd)))
+ (while (string-match "%f" cmd)
+ (setq cmd (replace-match
+ (save-match-data
+ (shell-quote-argument (file-name-nondirectory texfile)))
+ t t cmd)))
+ (while (string-match "%o" cmd)
+ (setq cmd (replace-match
+ (save-match-data
+ (shell-quote-argument (file-name-directory texfile)))
+ t t cmd)))
+ (shell-command cmd)))
+ (error nil))
+ (cd dir))
+ (if (not (file-exists-p pdffile))
+ (progn (message "Failed to create pdf file from %s" texfile) nil)
+ (condition-case nil
+ (if (featurep 'xemacs)
+ (call-process "convert" nil nil nil
+ "-density" "96"
+ "-trim"
+ "-antialias"
+ pdffile
+ "-quality" "100"
+;; "-sharpen" "0x1.0"
+ pngfile)
+ (call-process "convert" nil nil nil
+ "-density" dpi
+ "-trim"
+ "-antialias"
+ pdffile
+ "-quality" "100"
+; "-sharpen" "0x1.0"
+ pngfile))
+ (error nil))
+ (if (not (file-exists-p pngfile))
+ (if org-format-latex-signal-error
+ (error "Failed to create png file from %s" texfile)
+ (message "Failed to create png file from %s" texfile)
+ nil)
+ ;; Use the requested file name and clean up
+ (copy-file pngfile tofile 'replace)
+ (loop for e in '(".pdf" ".tex" ".aux" ".log" ".png" ".out") do
(delete-file (concat texfilebase e)))
pngfile))))
@@ -17263,6 +17390,23 @@ SNIPPETS-P indicates if this is run to create snippet images for HTML."
((eq attr :background) 'background))))
(color-values (face-attribute 'default attr nil))))))
+(defun org-latex-color (attr)
+ "Return an rgb color specification for latex color package."
+ (apply 'format "%s,%s,%s"
+ (mapcar 'org-normalize-color
+ (if (featurep 'xemacs)
+ (color-rgb-components
+ (face-property 'default
+ (cond ((eq attr :foreground) 'foreground)
+ ((eq attr :background) 'background))))
+ (color-values (face-attribute 'default attr nil))))))
+
+(defun org-latex-color-format (color-name)
+ "Convert color name to RGB value with format num1,num2,num3"
+ (apply 'format "%s,%s,%s"
+ (mapcar 'org-normalize-color
+ (color-values color-name))))
+
(defun org-normalize-color (value)
"Return string to be used as color value for an RGB component."
(format "%g" (/ value 65535.0)))
--
1.7.9.1
next prev parent reply other threads:[~2012-03-27 23:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-23 8:22 [patch] A experimental toy which is used to preview latex fragements FengShu
2012-03-24 13:34 ` Need Help: " FengShu
2012-03-24 17:32 ` Nick Dokos
2012-03-24 17:45 ` Nick Dokos
2012-03-24 18:54 ` Nick Dokos
2012-03-25 12:36 ` FengShu
2012-03-26 6:07 ` [patch] Need test: New path " FengShu
2012-03-27 4:23 ` [patch] Need test: New method " FengShu
2012-03-27 8:16 ` Bastien
[not found] ` <87haxapcof.fsf@gmail.com>
[not found] ` <87limmqoyu.fsf@gnu.org>
[not found] ` <87k426xk5t.fsf@gmail.com>
[not found] ` <87vclq401w.fsf@gnu.org>
2012-03-27 23:48 ` Feng Shu [this message]
2012-04-23 13:10 ` Bastien
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