On Tuesday 02 July 2002 6:52 am, Andre Poenitz wrote: > On Mon, Jul 01, 2002 at 08:06:34PM +0100, Angus Leeming wrote: > > I'm trying to use David's preview.sty so that we can generate all the > > previews in one go when the document is loaded. Much quicker than running > > a script on each one.
Specifically, it doesn't block LyX as badly at start-up. > Actually I think that's the only time we need to batch things. During > "normal operation" the preview generation seems to be fast enough to be > done one by one, so maybe we don't need that fullfledged "run queue" at > all. I'm of the same opinion; we need this only when a document is loaded. But we still need to dump the preamble if we're to get user-defined macros et al. I've tried to define a converter that can be used by both the batch processor and by the image loader. Ie, it'll work for both multiple and single images. > > I guess that the latter task is a question of setting gs' -r option using > > the info > > \screen_dpi 95 > > \screen_zoom 130 > > > > -r124 ? > > I need a factor of 2 here with 95 and 150. That's not the conventional > multiplication... Where's the 150 come from? That's 130 to you: 95 * 1.3 = 123.5. Anyway, I've attached the tex file that LyX would generate (include foreground and background color info) and the shell script that would convert it to a stack of PPM files. sh conv.sh trial.tex 123.5 We need to split Buffer::makeLaTeXFile into two so that we can just grab the preamble. Thereafter, the PreambleQueue class is finished too I believe. Angus
%% LyX 1.2 created this file. For more info, see http://www.lyx.org/. %% Do not edit unless you really know what you are doing. \documentclass[10pt,twocolumn,english]{article} \usepackage{times} \usepackage[T1]{fontenc} \usepackage[latin1]{inputenc} \usepackage{geometry} \geometry{verbose,a4paper,lmargin=0.5in,rmargin=0.5in,headheight=-1in} \setlength\parskip{\medskipamount} \setlength\parindent{0pt} \usepackage{graphicx} \usepackage[authoryear]{natbib} \makeatletter %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% LyX specific LaTeX commands. \providecommand{\LyX}{L\kern-.1667em\lower.25em\hbox{Y}\kern-.125emX\@} %% Bold symbol macro for standard LaTeX users \newcommand{\boldsymbol}[1]{\mbox{\boldmath $#1$}} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands. %% Turn off page numbering \let\ps@plain\ps@empty \ps@empty %% The spacing between columns in two-column mode \setlength{\columnsep}{0.5 in} %% Set the sections to be bold but otherewise the same size %% as normal text \renewcommand\section{\@startsection {section}{1}{\z@}% {\parskip}% {\parskip}% {\normalfont\bfseries}} %% Print the References title in uppercase %% To get this to work we _have_ to load babel first. \usepackage{babel} \AtBeginDocument{\renewcommand\refname{REFERENCES}} \usepackage{babel} \makeatother \usepackage[active,dvips,tightpage]{preview} \AtBeginDocument{\AtBeginDvi{% \special{!userdict begin/bop-hook{//bop-hook exec <000000faf0e6>{255 div}forall setrgbcolor clippath fill setrgbcolor}bind def end}}} \begin{document} \begin{preview} $D'$ \end{preview} \begin{preview} \[ E\left(0\right)-E\left(\kappa \right)\propto \sqrt{\kappa }^{1-D'}\] \end{preview} \begin{preview} $\kappa $ \end{preview} \begin{preview} \[ \frac{\partial }{\partial t}\left[E\left(0\right)-E\left(t\right)\right]\propto \sqrt{\kappa }^{1-3D'}\] \end{preview} \end{document}
conv.sh
Description: application/shellscript
%%
%% This is file `preview.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% preview.dtx (with options: `style')
%% preview.dtx (with options: `style,active')
%%
%% IMPORTANT NOTICE:
%%
%% For the copyright see the source file.
%%
%% Any modified versions of this file must be renamed
%% with new filenames distinct from preview.sty.
%%
%% For distribution of the original source see the terms
%% for copying and modification in the file preview.dtx preview.dtx.
%%
%% This generated file may be distributed as long as the
%% original source files, as listed above, are part of the
%% same distribution. (The sources need not necessarily be
%% in the same archive or directory.)
%%\iffalse
%% preview.dtx for extracting previews from LaTeX documents. Part of
%% the preview-latex package.
%% Copyright (C) 2001, 2002 David Kastrup
%%
%% This program is free software; you can redistribute it and/or modify
%% it under the terms of the GNU General Public License as published by
%% the Free Software Foundation; either version 2 of the License, or
%% (at your option) any later version.
%%
%% This program is distributed in the hope that it will be useful,
%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
%% GNU General Public License for more details.
%%
%% You should have received a copy of the GNU General Public License
%% along with this program; if not, write to the
%% Free Software Foundation, Inc., 59 Temple Place, Suite 330,
%% Boston, MA 02111-1307 USA
%%\fi
\NeedsTeXFormat{LaTeX2e}
\def\reserved@a #1#2$#3: #4${\edef#1{\reserved@c #2#4 $}}
\def\reserved@c #1 #2${#1}
\reserved@a\reserved@b $Name: rel-0-7-2b $
\ifx\reserved@b\@empty
\reserved@a\reserved@b CVS-$Revision: 1.57 $
\else
\begingroup
\lccode`-=`.
\def\next rel-{}
\edef\next{\lowercase{\endgroup
\def\noexpand\reserved@b{\expandafter\next\reserved@b}}}
\next
\fi
\reserved@a\next $Date: 2002/04/13 02:05:25 $
\edef\next{\noexpand\ProvidesPackage{preview}%
[\next\space preview-latex \reserved@b]}
\next
\let\ifPreview\iffalse
\let\preview@delay=\@gobble
\let\pr@advise=\@gobbletwo
\def\pr@advise@ship#1#2#3{}
\def\pr@loadcfg#1{\InputIfFileExists{#1.cfg}{}{}}
\DeclareOption{noconfig}{\let\pr@loadcfg=\@gobble}
\def\pr@addto@front#1#2{%
\toks@{#2}\toks@\expandafter{\the\expandafter\toks@#1}%
\xdef#1{\the\toks@}}
\DeclareOption{active}{%
\let\ifPreview\iftrue
\def\pr@advise#1{%
\expandafter\pr@adviseii\csname pr@\string#1\endcsname#1}%
\def\pr@advise@ship#1#2#3{\pr@advise#1{\pr@protect@ship{#2}{#3}}}%
\let\preview@delay\@firstofone}
\def\pr@adviseii#1#2#3{\preview@delay{%
\ifx#1\relax \let#1#2\fi
\toks@{#3#1}\edef#2{\the\toks@}}}
\DeclareOption{delayed}{%
\ifPreview \def\preview@delay{\AtBeginDocument}\fi
}
\newif\ifpr@fixbb
\pr@fixbbfalse
\DeclareOption{psfixbb}{\ifPreview%
\pr@fixbbtrue
\newbox\pr@markerbox
\setbox\pr@markerbox\hbox{\special{psfile=/dev/null}\fi}%
}
\DeclareOption{dvips}{%
\preview@delay{\AtBeginDvi{%
\special{!userdict begin/bop-hook{/isls false def%
/vsize 792 def/hsize 612 def}def end}}}}
\begingroup
\catcode`\*=11
\@firstofone{\endgroup
\DeclareOption{displaymath}{%
\preview@delay{\toks@{%
\pr@startbox{\noindent$$%
\aftergroup\pr@endbox\@gobbletwo}{$$}\@firstofone}%
\everydisplay\expandafter{\the\expandafter\toks@
\expandafter{\the\everydisplay}}}%
\pr@advise@ship\equation{\begingroup\aftergroup\pr@endbox
\def\dt@ptrue{\m@ne=\m@ne}\noindent}
{\endgroup}%
\pr@advise@ship\equation*{\begingroup\aftergroup\pr@endbox
\def\dt@ptrue{\m@ne=\m@ne}\noindent}
{\endgroup}%
}}
\begingroup
\def\next#1#2{%
\endgroup
\DeclareOption{textmath}{%
\preview@delay{\ifx#1\@undefined \let#1=$\fi
\catcode`\$=\active}%
\pr@advise@ship\(\pr@endaftergroup{}% \)
\pr@advise@ship#1{\let#1=#2%
\pr@setmathhooks{##1\everymath##1\everydisplay}}{}}}
\lccode`\~=`\$
\lowercase{\expandafter\next\expandafter~}%
\csname pr@\string$\endcsname
\DeclareOption{graphics}{%
\PreviewMacro[{*[[!}]{\includegraphics}}
\DeclareOption{floats}{%
\PreviewSnarfEnvironment[![]{@float}%
\PreviewSnarfEnvironment[![]{@dblfloat}}
\DeclareOption{sections}{%
\PreviewMacro[!!!!!!*[!]{\@startsection}}
\DeclareOption*
{\InputIfFileExists{pr\CurrentOption.def}{}{\OptionNotUsed}}
\def\PreviewMacro{\@ifstar\pr@starmacro\pr@macro}
\newcommand*\pr@macro[2][]{%
\pr@advise@ship{#2}{\pr@callafter\pr@endbox#1\pr@endparse}{}}
\def\pr@protect@star#1{\pr@protect{%
\pr@callafter\pr@seq!#1\pr@endparse\pr@stargobble}}
\def\pr@stargobble#1\pr@seq{}
\newcommand*\pr@starmacro[2][]{\pr@advise#2{\pr@protect@star{#1}}}
\def\PreviewEnvironment{\@ifstar\pr@starenv\pr@env}
\newcommand*\pr@starenv[2][]{\toks@{\pr@starmacro[{#1}]}%
\the\expandafter\toks@\csname#1\endcsname
\expandafter\pr@starmacro\csname end#1\endcsname}
\newcommand*{\pr@env}[2][]{\expandafter\pr@advise@ship
\csname #2\endcsname{\begingroup\aftergroup\pr@endbox}{\endgroup}}
\newcommand*{\PreviewSnarfEnvironment}[2][]{%
\expandafter\pr@advise
\csname #2\endcsname{\pr@snarfafter#1\pr@endparse}%
\expandafter\pr@advise
\csname end#2\endcsname{\endgroup}}
\let\pr@ship@start\@empty
\let\pr@ship@end\@empty
\newenvironment{preview}{\ignorespaces}{\unskip}
\newenvironment{nopreview}{\ignorespaces}{\unskip}
\ProcessOptions\relax
\ifPreview\else\expandafter\endinput\fi
%%\iffalse
%% preview.dtx for extracting previews from LaTeX documents. Part of
%% the preview-latex package.
%% Copyright (C) 2001, 2002 David Kastrup
%%
%% This program is free software; you can redistribute it and/or modify
%% it under the terms of the GNU General Public License as published by
%% the Free Software Foundation; either version 2 of the License, or
%% (at your option) any later version.
%%
%% This program is distributed in the hope that it will be useful,
%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
%% GNU General Public License for more details.
%%
%% You should have received a copy of the GNU General Public License
%% along with this program; if not, write to the
%% Free Software Foundation, Inc., 59 Temple Place, Suite 330,
%% Boston, MA 02111-1307 USA
%%\fi
\newif\ifpr@outer
\pr@outertrue
\newcount\pr@snippet
\global\pr@snippet=1
\def\pr@protect{\ifx\protect\@typeset@protect
\ifpr@outer \expandafter\expandafter\expandafter
\@secondoftwo\fi\fi\@gobble}
\def\pr@protect@ship{\pr@protect{\@firstoftwo\pr@startbox}%
\@gobbletwo}
\newbox\pr@box
\def\pr@startbox#1#2{%
\ifpr@outer
\toks@{#2}%
\edef\pr@cleanup{\the\toks@}%
\setbox\pr@box\vbox\bgroup
\break
\pr@outerfalse\@arrayparboxrestore
\expandafter\expandafter\expandafter
\pr@ship@start
\expandafter\@firstofone
\else
\expandafter \@gobble
\fi{#1}}
\def\pr@endbox{%
\ifvmode \edef\reserved@a{\the\everypar}%
\ifx\reserved@a\@empty\else
\dimen@\prevdepth
\noindent\par
\setbox\z@\lastbox\unskip\unpenalty
\prevdepth\dimen@
\setbox\z@\hbox\bgroup\penalty-\maxdimen\unhbox\z@
\ifnum\lastpenalty=-\maxdimen\egroup
\else\egroup\box\z@ \fi\fi\fi
\ifhmode \par\unskip\setbox\z@\lastbox
\nointerlineskip\hbox{\unhbox\z@\/}%
\else \unskip\unpenalty\unskip \fi
\egroup
\setbox\pr@box\vbox{%
\baselineskip\z@skip \lineskip\z@skip \lineskiplimit\z@
\@begindvi
\nointerlineskip
\splittopskip\z@skip\setbox\z@\vsplit\pr@box to\z@
\unvbox\z@
\nointerlineskip
\color@setgroup
\box\pr@box
\color@endgroup}%
\pr@ship@end
{\let\protect\noexpand
\voffset=-\ht\pr@box
\hoffset=\z@
\c@page=\pr@snippet
\pr@shipout
\ifpr@fixbb\hbox{%
\dimen@\wd\pr@box
\@tempdima\ht\pr@box
\@tempdimb\dp\pr@box
\box\pr@box
\llap{\raise\@tempdima\copy\pr@markerbox\kern\dimen@}%
\lower\@tempdimb\copy\pr@markerbox}%
\else \box\pr@box \fi}%
\global\advance\pr@snippet\@ne
\pr@cleanup
}
\let\pr@shipout=\shipout
\def\shipout{\deadcycles\z@\setbox\z@\box\voidb@x\setbox\z@}
\def\pr@callafter{%
\afterassignment\pr@parseit
\let\pr@seq= }
\def\pr@parseit#1{\csname pr@parse#1\endcsname}
\let\pr@endparse=\@percentchar
\expandafter\def\csname pr@parse*\endcsname#1\pr@endparse#2{%
\@ifstar{\pr@parseit#1\pr@endparse{#2*}}%
{\pr@parseit#1\pr@endparse{#2}}}
\expandafter\def\csname pr@parse[\endcsname#1\pr@endparse#2{%
\@ifnextchar[{\pr@bracket#1\pr@endparse{#2}}%
{\pr@parseit#1\pr@endparse{#2}}}
\def\pr@bracket#1\pr@endparse#2[#3]{\pr@parseit#1\pr@endparse{#2[{#3}]}}
\expandafter\let\csname pr@parse]\endcsname=\pr@parseit
\def\pr@parse#1\pr@endparse#2#3{%
\pr@parseit#1\pr@endparse{#2{#3}}}
\expandafter\let\csname pr@parse!\endcsname=\pr@parse
\expandafter\def\csname pr@parse\pr@endparse\endcsname#1{#1\pr@seq}
\def\pr@endaftergroup#1{#1\aftergroup\pr@endbox}
\def\pr@setmathhooks#1{\def\reserved@a##1{#1}%
\def\reserved@b##1{##1{\the##1}}%
\def\reserved@c##1{%
##1{\reserved@a\reserved@b\aftergroup\noexpand\pr@endbox
\noexpand\the##1}}%
\edef\reserved@a{\reserved@a\reserved@c}\reserved@a}
\def\pr@snarfafter{\ifpr@outer
\pr@ship@start
\let\pr@ship@start\@empty
\fi
\pr@callafter\pr@startsnarf}
\def\pr@startsnarf{\begingroup
\pr@startbox{\begingroup\aftergroup\pr@endbox}{\endgroup}%
\ignorespaces}
\renewenvironment{preview}{\begingroup
\pr@startbox{\begingroup\aftergroup\pr@endbox}%
{\endgroup}%
\ignorespaces}%
{\unskip\endgroup}
\renewenvironment{nopreview}{\pr@outerfalse\ignorespaces}{\unskip}
\nofiles
\output{\def\@elt#1{\global\setbox#1=\box\voidb@x}%
\@currlist
\@elt{255}%
\let\@elt\relax
\xdef\@freelist{\@currlist\@freelist}%
\global\let\@currlist\@empty
\deadcycles\z@}
\pr@loadcfg{prdefault}
\endinput
%%
%% End of file `preview.sty'.
