- ntg-context - NTG Mailing Lists

How to check if buffer or block has content
by Benjamin Buchmuller 03 Aug '21

03 Aug '21

Hi, How can I check if a buffer or block has content (or is empty) before a \useblocks or \getbuffer statement? I would like to typeset a headline only if the buffer/block has been used in a particular section and want to avoid headlines with empty sections. Thanks! Benjamin

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using a red frame as an overlay
by Jeong Dal 02 Aug '21

02 Aug '21

Hi, I used red frame which is in the metafun manual for long time. But it is not working now. Here is a MWE and a part of the log file. What should I change in the definitions? I am using "ConTeXt ver: 2021.07.10 21:51 LMTX fmt: 2021.7.12 int: english/english”. %%%%%%%% framed Text with title %%% \startuseMPgraphic{redFrame} picture p ; numeric o ; path a, b ; pair c ; p := textext.rt(\MPstring{FrameText}) ; o := BodyFontSize ; a := unitsquare xyscaled (OverlayWidth,OverlayHeight) ; p := p shifted (2o,OverlayHeight-ypart center p) ; drawoptions (withpen pencircle scaled 1pt withcolor .625red) ; b := a superellipsed .95 ; %fill b withcolor .85white ; draw b ; b := (boundingbox p) superellipsed .95 ; fill b withcolor .85white ; %.425green;%. draw b ; draw p withcolor black ; setbounds currentpicture to a ; \stopuseMPgraphic \defineoverlay[rFrame][\useMPgraphic{redFrame}] \defineframedtext[rfText] [frame=off, background=rFrame, offset=\bodyfontsize, width=\textwidth, before=\blank, after=\blank] \def\StartFrame{\blank\startrfText} \def\StopFrame {\stoprfText\blank} \starttext \StartFrame This is a test for the frame. This is a test for the frame. This is a test for the frame. This is a test for the frame. This is a test for the frame. This is a test for the frame. \StopFrame \stoptext \starttext log file: fonts > 'fallback modern-designsize rm 12pt' is loaded tex error > tex error on line 41 in file /Users/graph/Library/Mobile Documents/com~apple~CloudDocs/texMain/test.tex: Use of \meta_usempgraphic_nop doesn't match its definition <to be read again> } <macro> \executedefinedoverlay #1#2->\bgroup \setlayoutcomponentattribute {\v!overlay :#1}\setbox \scratchbox \hbox \layoutcomponentboxattribute {\the \everyoverlay #2} \boxxoffset \scratchbox -.5\dimexpr \wd \scratchbox -\d_framed_target_wd \relax \boxyoffset \scratchbox -.5\dimex <macro> \pack_framed_process_background_indeed_internal #1->\bgroup \setbox \b_framed_extra \hpack \bgroup \ifzeropt \framedbackgroundoffset \else \kern -\framedbackgroundoffset \fi \hbox \bgroup #1 \egroup \egroup \wd \b_framed_extra \zeropoint \ht \b_framed_extra \framedbackgroundheight \dp \b_framed_ext <macro> \m_framed_background ...background \endcsname \expandafter \pack_framed_process_background_indeed_internal \lastnamedcs \orelse \ifcsname \??overlay \m_framed_background \endcsname \expandafter \pack_framed_process_background_indeed_external \lastnamedcs \fi <macro> \pack_framed_process_backgrounds #1,#2->\edef \m_framed_background {#1}\ifx \m_framed_background \s!unknown \else \pack_framed_process_background \expandafter \pack_framed_process_backgrounds \fi #2 <macro> \p_framed_component ...s\let \foregroundbox \pack_framed_background_box_content \hpack \layoutcomponentboxattribute to \framedbackgroundwidth \bgroup \the \everybackgroundbox \expandafter \pack_framed_process_backgrounds \p_framed_background ,\s!unknown ,\relax \box ... ... <line 4.41> \StopFrame 31 32 \starttext 33 34 \StartFrame 35 This is a test for the frame. 36 This is a test for the frame. 37 This is a test for the frame. 38 This is a test for the frame. 39 This is a test for the frame. 40 This is a test for the frame. 41 >> \StopFrame 42 43 \stoptext 44 If you say, e.g., '\def\a1{...}', then you must always put '1' after '\a', since control sequence names are made up of letters only. The macro here has not been followed by the required stuff, so I'm ignoring it. mtx-context | fatal error: return code: 256

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Strange new behaviour of the mailing list
by Otared Kavian 02 Aug '21

02 Aug '21

Hi all, I noticed that beginning July 27th, the messages distributed by the ConTeXt mailing list appear to be from Mailing list for ConTeXt users without the actual name of the sender appearing. It may be dependent on the mail client I am using (Mail.app on MacOS 11.4), but I wonder whether something has changed on mailing list server, and whether if there is something I can do to have the old behaviour (which was convenient when one wanted to follow up mails from some specific contributors). Also has anybody else noticed this change? Thanks in advance for any hint. Best regards: Otared

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placefigure, usetikzlibrary and readfile
by Jigé 02 Aug '21

02 Aug '21

Hello all. It seems that \usetikzlibrary is sometimes read, sometimes not, and I don't understand why. Rationale: I would like, using one file, to use it to produce a picture, as with LaTeX's Standalone class, but to be able to include it in a calling document as well, for better management of fonts, etc. Thus this is most convenient. I have everything in the main document and I can quickly reuse any figure elsewhere. What I did: I use \readfile in a main ConTeXt file document.tex to include the file included.tex . The file included.tex should contain *just* the TikZ picture and what is needed to compile it "standalone". The issue: It seems I can call the file with the TikZ picture description multiple times, with \readfile, from within the very same \placefigure. However, if I call it by using two successive \placefigure commands, the \usetikzlibrary[blabla] in the included file doesn't seem to be recognised. E.g. with the provided example below, the key "right angle" is not understood, as if \usetikzlibrary[angles] was not there. One workaround would be to use \usetikzlibrary[allTheLibrariesISupposeMightEverBeNeeded] in the calling file. But I don't like it. I would rather have only the TikZ libraries relevant to some picture included in the corresponding file. I'm quite startled by the fact that : > \placefigure[here][]{This is a figure}{ > \readfile{included}{}{File not found.} > \readfile{included}{}{File not found.} > } compiles but > \placefigure[here][]{This is a figure}{ > \readfile{included}{}{File not found.} > } > \placefigure[here][]{This is a figure}{ > \readfile{included}{}{File not found.} > } does not. All the best! Example: %%%% Begin document.tex \usemodule[tikz] \starttext \usetikzlibrary[angles] % Doesn't compile if this is commented out. %\placefigure[here][]{This is a figure}{ % \readfile{included}{}{File not found.} % \readfile{included}{}{File not found.} %} \placefigure[here][]{This is a figure}{ \ReadFile{included}{} } \placefigure[here][]{This is a figure}{ \ReadFile{included}{} } \stoptext %%%% End document.tex %%%% Begin included.tex \usemodule[tikz] \usetikzlibrary[angles] %\doifnotmode{*text,*bodypart}{ \startTEXpage[fit] } \doifnotmode{*text,*bodypart}{ \startTEXpage[fit] \usemodule[tikz] \usetikzlibrary[angles] } \hbox{\starttikzpicture[] \draw[] (0,0) coordinate (A) node[left] {$A$} -- (4,0) coordinate (B) node[right] {$B$} -- (0,3) coordinate (C) node[left] {$C$} -- cycle pic [draw, angle radius=0.5cm] {right angle = B--A--C} ; \stoptikzpicture} \doifnotmode{*text,*bodypart}{ \stopTEXpage } %%%% End included.tex

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Additional font variants
by Henning Hraban Ramm 01 Aug '21

01 Aug '21

Hi, I’m trying to set up a “handwriting” font. In the example below I’m using Comic Sans, because probably everyone has it available, IRL I’m using the commercial “Supernett Cn” that has more styles. (Also, I’m using Alegreya Serif + Sans.) If I name it "ss/sans/Sans", it works as expected, but with "hw/handwriting/Handwriting" it only uses the regular font, never other styles. "mtxrun --script fonts ..." shows that the configured files are found. Is this a limitation in ConTeXt, or what did I wrong? Hraban \starttypescript [handwriting] [comicsans] %\setups[font:fallback:serif] \definefontsynonym[ComicSans-Regular] [file:comic.ttf] \definefontsynonym[ComicSans-Italic] [file:comicbd.ttf] \definefontsynonym[ComicSans-Bold] [file:comicbd.ttf] \definefontsynonym[ComicSans-BoldItalic] [file:comicbd.ttf] \stoptypescript \starttypescript [handwriting] [comicsans] [name] %\setups[font:fallback:handwriting] \definefontsynonym [Handwriting] [ComicSans-Regular] [features=default] \definefontsynonym [HandwritingItalic] [ComicSans-Italic] [features=default] \definefontsynonym [HandwritingBold] [ComicSans-Bold] [features=default] \definefontsynonym [HandwritingBoldItalic] [ComicSans-BoldItalic] [features=default] \stoptypescript \starttypescript [ka] \definetypeface [ka] [rm] [serif] [modern] [default] \definetypeface [ka] [ss] [sans] [modern] [default] \definetypeface [ka] [tt] [mono] [modern] [default] \definetypeface [ka] [mm] [math] [modern] [default] \definetypeface [ka] [hw] [handwriting] [comicsans] [default] \stoptypescript \setupbodyfont[ka,rm,18pt] \setupbodyfontenvironment[default][em=italicface] \definehighlight[emph][style={\em}] \definehighlight[strong][style=boldface] \starttext \startbuffer Some Text \emph{emphasized} normal \strong{strong} \emph{emph \emph{inner emph} end}. \stopbuffer \getbuffer {\switchtobodyfont[ss]\getbuffer} {\hw\getbuffer} {\switchtobodyfont[hw]\getbuffer} \stoptext

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multimedia PDF in ConTeXt
by Pablo Rodriguez 31 Jul '21

31 Jul '21

Hi Michal and Hans, many thanks for your patch to fix multimedia objects in PDF and your extremely interesting and in-depth explanation about multimedia in PDF. Many thanks to Hans for the release of an updated latest with also updated documentation. Although I don’t read Czech, just out of curiosity, is your bachelor thesis available on the net, Michal? Thanks to theses.cz, I found https://is.muni.cz/th/t8qpp/DP_Vlasak_Michal_2015.pdf (only a name coincidence, I guess). Using your sample, I have two questions: \starttext \setupinteraction[state=start] \useexternalrendering[myvideo][video/mp4][video.mp4][embed=yes] \definerenderingwindow[myrenderingwindow] [width=\textwidth, height=\textwidth] \placerenderingwindow[myrenderingwindow][myvideo] \stoptext Is there no way to have the video as an embedded file in the PDF document? (I mean, that the file is listed when the attachment panel is displayed.) The second question is addressed to Hans: would it be possible that \placerenderingwindow could have another option and text as in \framed? A workaround would be to add a layer, but too complex only for adding usage instructions for the media usage. Many thanks for your help, Pablo -- http://www.ousia.tk

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Verbatim text in a frame
by Jeroen 31 Jul '21

31 Jul '21

I am using the following preamble to put a frame around verbatim text. How can I have all the text start some 5pt from the frame and how can I get rounded corners, corner=0 does not seem to work \setupcolors[state=start] \setupcolor[xwi] \definetextbackground [Code] [frame=on, framecolor=black, %corner=0, %offset=10pt, background=color, backgroundcolor=gray, location=paragraph] \setuptyping [before={\blank\starttextbackground[Code]}, after={\stoptextbackground\blank}] \starttext \starttyping example \stoptyping \stoptext

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Fontsizes in Adobe Acrobat vs ConTeXt
by denis.maier＠unibe.ch 29 Jul '21

29 Jul '21

Hi, I have to reproduce a book layout that was done in Adobe Indesign, and I don't really manage to get the right fontsizes, i.e. according to Acrobat Pro the fonts are consistently a bit smaller then expected. That may well be an Adobe problem, it's just that I have to aim for rather specific target values... As you can see below the deviation is not so significant with the normal font size and bigger sizes, but more so with the smaller sizes. % ---------------------------------------------------------------------- \setupbodyfont[10pt] \definebodyfontenvironment [default] [xx=0.7, x=0.85, a=1.175, b=1.5, ] \starttext {\tfxx Smallest } % => expected 7pt, actual 5.98pt {\tfx Small} % => expected 8.5pt, actual 7.97pt {\tf Normal} % => expected 10pt, actual 9.96pt {\tfa Larger} % => expected 11.75pt, actual 11.71pt {\tfb Largest} % => expected 15pt, actual 14.94pt \stoptext % ---------------------------------------------------------------------- Any ideas, how I could get that right? (The project uses Noto Serif, but the same happens there.) Thanks for you help, Denis

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Re: [NTG-context] Different Styles of Typing
by Hans Hagen 29 Jul '21

29 Jul '21

On 7/28/2021 10:12 PM, Wolfgang Schuster wrote: > 2. Rather than adding a additional argument to \starttyping etc. provide > a \startnamedtyping with a mandatory argument with the name of the > instance. ok, but i do need to check the before/after wrt setup > To save a few lines of code a flag (e.g. \ifinstance) can be used to set > the start/stop command for the buffer. > > > \protected\def\startnamedtyping[#1]% > {\instancefalse\buff_verbatim_typing_start{#1}} i noticed that we had a comment about startnamedtyping ... makes me wonder, are there more instance commands that we need to extend with a 'named' variants Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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footnote not appearing
by jbf 28 Jul '21

28 Jul '21

Is there any reason why the following MWE does not produce the footnote at the bottom of the page? It seems like the use of framedtext is preventing it, but am not sure why. Can I get around this problem and still have framed text? Julian \setupframed[location=middle] \startframedtext[width=.77\makeupwidth,corner=round] The poems of St John of the Cross have been important for me in recent years. This is John’s prayer from a verse in his Spiritual Canticle:\footnote{John of the Cross, {\em Spiritual Canticle}, stanza 32. } \startblockquote You looked with love upon me, and deep within, your eyes imprinted grace. This mercy set me free, held in your love’s embrace, to lift my eyes adoring to your face. \stopblockquote I wonder how often John prayed that prayer. \stopframedtext

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