Re: [NTG-context] Text with background (overlay with a line by MP)

2011-03-20 Thread Wolfgang Schuster

Am 19.03.2011 um 23:13 schrieb Aditya Mahajan:

 On Sat, 19 Mar 2011, Procházka Lukáš wrote:
 
 Hello,
 
 I'm trying to create an overlay - text with a line drawn bellow.
 
 [...]
 
 How to do it?
 
 You do not need yshifted. But you need to set the bounding box of the 
 resulting image correctly.
 
 \startuniqueMPgraphic{Label}
 path p; p := (0,0) -- (OverlayWidth,0);
 draw p withpen pencircle scaled 1mm withcolor .667red;
 setbounds currentpicture to boundingbox OverlayBox ;
 \stopuniqueMPgraphic


You can also use the \framed-parameters:

\startuniqueMPgraphic{Label}
path p; p := (0,0) -- (OverlayWidth,0);
draw p withpen pencircle scaled \frameddimension{rulethickness} withcolor 
\MPcolor{\framedparameter{framecolor}};
setbounds currentpicture to boundingbox OverlayBox ;
\stopuniqueMPgraphic

\defineoverlay[Label][\useMPgraphic{Label}]

\defineframed[Text][background=Label,frame=off,location=low,framecolor=darkred,rulethickness=1mm]

\starttext
AAA \Text{BBB} CCC \Text[framecolor=blue]{DDD} EEE
\stoptext

Wolfgang

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Re: [NTG-context] Text with background (overlay with a line by MP)

2011-03-19 Thread Peter Münster
Procházka Lukáš l...@pontex.cz writes:

   draw p yshifted -1cm withpen pencircle scaled 1mm withcolor .667red;

draw p withpen pencircle scaled 0mm withcolor white;
draw p yshifted -OverlayHeight withpen pencircle scaled 1mm withcolor .667red;

(quick and dirty, there is certainly a cleaner solution...)
-- 
   Peter
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Re: [NTG-context] Text with background (overlay with a line by MP)

2011-03-19 Thread Peter Münster
Procházka Lukáš l...@pontex.cz writes:

 \def\Text#1{\inframed[background=Label,frame=off]{#1}}

Or like this (less quick and perhaps less dirty):

\def\Text#1{\inframed[location=top, background=Label, boffset=\lineheight,
frame=off]{#1}}

-- 
   Peter
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Re: [NTG-context] Text with background (overlay with a line by MP)

2011-03-19 Thread Peter Münster
pmli...@free.fr (Peter Münster) writes:

 Procházka Lukáš l...@pontex.cz writes:

 \def\Text#1{\inframed[background=Label,frame=off]{#1}}

 Or like this (less quick and perhaps less dirty):

 \def\Text#1{\inframed[location=top, background=Label, boffset=\lineheight,
 frame=off]{#1}}

Oh, no, please forget that!

-- 
   Peter
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Re: [NTG-context] Text with background (overlay with a line by MP)

2011-03-19 Thread Procházka Lukáš

... Thanks,

so a dirty trick must be done anyway? A trick which would cause MP to 
evaluate a higher bounding box?


draw p withpen pencircle scaled 0mm withcolor white;


---
draw (0,0);
---

instead works as well.


draw p yshifted -OverlayHeight withpen pencircle scaled 1mm withcolor .667red;

(quick and dirty, there is certainly a cleaner solution...)


(I guess so as well.)

(BTW: I don't want to just \underbar the text - this is a simplified 
task/sample; drawing should be more complicated in reality.)

Lukas


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Re: [NTG-context] Text with background (overlay with a line by MP)

2011-03-19 Thread Aditya Mahajan

On Sat, 19 Mar 2011, Procházka Lukáš wrote:


Hello,

I'm trying to create an overlay - text with a line drawn bellow.

The following code:

---

\defineoverlay[Label][\useMPgraphic{Label}]

\startuniqueMPgraphic{Label}
path p; p := (0,0) -- (OverlayWidth,0);
draw p yshifted -1cm withpen pencircle scaled 1mm withcolor .667red;
\stopuniqueMPgraphic

\def\Text#1{\inframed[background=Label,frame=off]{#1}}

\starttext
AAA
\Text{BBB}
CCC
\stoptext

---

results in a horizontal line going exactly through the middle of the text.

And I'd like to draw it bellow; thus yshifted -1cm.

How to do it?


You do not need yshifted. But you need to set the bounding box of the 
resulting image correctly.


\startuniqueMPgraphic{Label}
 path p; p := (0,0) -- (OverlayWidth,0);
 draw p withpen pencircle scaled 1mm withcolor .667red;
 setbounds currentpicture to boundingbox OverlayBox ;
\stopuniqueMPgraphic

Aditya___
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Re: [NTG-context] Text with background (overlay with a line by MP)

2011-03-19 Thread Procházka Lukáš

On Sat, 19 Mar 2011 23:13:46 +0100, Aditya Mahajan adit...@umich.edu wrote:


You do not need yshifted. But you need to set the bounding box of the
resulting image correctly.

\startuniqueMPgraphic{Label}
  path p; p := (0,0) -- (OverlayWidth,0);
  draw p withpen pencircle scaled 1mm withcolor .667red;
  setbounds currentpicture to boundingbox OverlayBox ;
\stopuniqueMPgraphic

Aditya


Perfect, thank you.

Lukas


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