\setuphead[part] - special look

["Procházka Lukáš Ing. - Pontex s. r. o." <LPr@pontex.cz>]

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Hello,

I'm trying to \setuphead[part] to have the following features:

1. Part head to fill the whole page.

2. Part number and name to be placed (approx.) in the golden ratio of the page.

3. Page background (for the \part only!) to be colored, e.g. blue.

----
\define[2]\MyPartCmd{%
     {%
       \vbox to\vsize{%
         \vfill\vfill%
         #1
         \blank[big]
         #2
         \vfill\vfill\vfill%
       }
     }%
}

\define[1]\MyPartCmdText{%
   \hbox to\hsize{\hfill \bf DĂl #1\hfill}%
}

\definefontsize[e]
\definebodyfontenvironment[default][e=5.]

\define[1]\MyPartCmdNum{%
   \hbox to\hsize{\hfill \bfe\sc#1\hfill}%
}

\setuphead[part]
   [command=\MyPartCmd,
    numbercommand=\MyPartCmdText,
    textcommand=\MyPartCmdNum,
    placehead=yes,header=none,page=odd,
    before={\setupbackgrounds[page][background=color,backgroundcolor=blue,state=start]},
    %after={\setupbackgrounds[page][background=]},
   ]

\starttext
   \showboxes
   \part{Part}
   \input knuth
\stoptext
----

The code above doesn't satisfy the features:

Ad 1: Some text (from knuth) appears in the bottom (should be solved by "after=\page", but is there a better solution, e.g. to affect height of the \vbox in \MyPartCmd?)

Ad 3: I'm able to make only the part page blue (now all pages are blue; when I uncomment "after={\setupbackgrounds[page][background=]},", no page is blue).

Could anyone help me to "tune" the \setuphead[part]?

Thank you in advance.

Best regards,

Lukas


-- 
Ing. Lukáš Procházka | mailto:LPr@pontex.cz
Pontex s. r. o.      | mailto:pontex@pontex.cz | http://www.pontex.cz
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147 14 Praha 4

Tel: +420 241 096 751
Fax: +420 244 461 038

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\define[2]\MyPartCmd{%
    {%
      \vbox to\vsize{%
        \vfill\vfill%
        #1
        \blank[big]
        #2
        \vfill\vfill\vfill%
      }
    }%
}

\define[1]\MyPartCmdText{%
  \hbox to\hsize{\hfill \bf Díl #1\hfill}%
}

\definefontsize[e]
\definebodyfontenvironment[default][e=5.]

\define[1]\MyPartCmdNum{%
  \hbox to\hsize{\hfill \bfe\sc#1\hfill}%
}

\setuphead[part]
  [command=\MyPartCmd,
   numbercommand=\MyPartCmdText,
   textcommand=\MyPartCmdNum,
   placehead=yes,header=none,page=odd,
   before={\setupbackgrounds[page][background=color,backgroundcolor=blue,state=start]},
   %after={\setupbackgrounds[page][background=]},
  ]

\starttext
  \showboxes
  \part{Part}
  \input knuth
\stoptext

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