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Am 11.06.10 07:45, schrieb Jaroslav Hajtmar:
Hi all. I was surprised that when I set up (in the MKII and MKIV too) topspace parameter to a nonzero value and the value of the bottomspace parameter to zero value, then the size of bottomspace is the same as topspace size. On the other side, if I set topspace to zero value and the bottomspace to nonzero value, ConTeXt behaves as I expected. Is this a normal behavior ConTeXt? Ie. when bottomspace is zero, then the paper has only the tops and not bottoms?
As told in my other mail that's not possible with a calculated text height but here is a patch: \unprotected\def\dorecalculatelayout {%\the\everybeforelayout \setups[\layoutparameter\c!preset]% \global\leftmarginwidth \layoutparameter\c!leftmargin \global\rightmarginwidth\layoutparameter\c!rightmargin \global\leftedgewidth \layoutparameter\c!leftedge \global\rightedgewidth \layoutparameter\c!rightedge \global\headerheight \layoutparameter\c!header \global\footerheight \layoutparameter\c!footer \global\bottomheight \layoutparameter\c!bottom \global\topheight \layoutparameter\c!top \global\backspace \layoutparameter\c!backspace \global\topspace \layoutparameter\c!topspace \setlayoutdimensions % the rest of the `dimensions' \docheckgridsnapping \doprocesslocalsetups{\layoutparameter\c!setups}% depends on gridsnapping ! \simplesetupwhitespace \simplesetupblank \setupinterlinespace[\v!reset]% \synchronizegloballinespecs \global\cutspace\layoutparameter\c!cutspace \relax \doifelse{\layoutparameter\c!width}\v!middle {\ifdim\cutspace=\zeropoint \global\cutspace\backspace \fi \global\makeupwidth\dimexpr\paperwidth-\backspace-\cutspace\relax} {\doifelse{\layoutparameter\c!width}\v!auto {\global\makeupwidth\dimexpr\paperwidth-\backspace-\cutspace\relax} {\doifelse{\layoutparameter\c!width}\v!fit {\ifdim\cutspace=\zeropoint \global\cutspace\backspace \fi \global\makeupwidth\dimexpr\paperwidth-\cutspace\relax \scratchdimen\dimexpr\backspace -\leftedgewidth -\leftedgedistance -\leftmarginwidth-\leftmargindistance\relax \ifdim\scratchdimen<\zeropoint \scratchdimen\zeropoint \fi \global\advance\makeupwidth\dimexpr -\rightmargindistance-\rightmarginwidth -\rightedgedistance -\rightedgewidth -\scratchdimen\relax} {\global\makeupwidth\layoutparameter\c!width\relax \ifdim\cutspace=\zeropoint \global\cutspace\dimexpr\paperwidth-\makeupwidth-\backspace\relax % \else % A kind of inconsistent specification, but used % in for instance s-pre-19.tex; the cutspace is % used only for determining some kind of right % margin; don't use this in doublesided mode \fi}}}% \scratchdimen\layoutparameter\c!bottomspace\relax %\ifdim\scratchdimen=\zeropoint % \scratchdimen\topspace %\fi \global\bottomspace\layoutparameter\c!bottomspace\relax \global\layoutlines0\number\layoutparameter\c!lines\relax % may be empty \ifcase\layoutlines \doifelse{\layoutparameter\c!height}\v!middle {\ifdim\bottomspace=\zeropoint \global\bottomspace\topspace \fi \global\makeupheight\dimexpr\paperheight-\topspace-\bottomspace\relax} {\doifelse{\layoutparameter\c!height}\v!auto {\global\makeupheight\dimexpr\paperheight-\topspace-\bottomspace\relax} {\doifelse{\layoutparameter\c!height}\v!fit {\ifdim\bottomspace=\zeropoint \global\bottomspace\topspace \fi \global\makeupheight\dimexpr\paperheight-\bottomspace\relax \scratchdimen\dimexpr\topspace-\topheight-\topdistance\relax \ifdim\scratchdimen<\zeropoint \scratchdimen\zeropoint \fi \global\advance\makeupheight\dimexpr-\bottomdistance-\bottomheight-\scratchdimen\relax} {\global\makeupheight\layoutparameter\c!height\relax \ifdim\bottomspace=\zeropoint \global\bottomspace\dimexpr\paperheight-\makeupheight-\topspace\relax \else % inconsistent specification \fi}}}% \else % beware, when the bodyfont changes (switched) this will change as well; implementing % a global lineheight is tricky: should we take the bodyfont interlinespace or the one set % independent of the bodyfont (before or after a layout spec); way too fuzzy, so we % stick to the current method (after a night of experimenting ...2003/10/13) \global\makeupheight\dimexpr \layoutparameter\c!lines\lineheight-\strutheight+\topskip+ \headerdistance+\headerheight+\footerdistance+\footerheight\relax \fi \backoffset\layoutparameter\c!horoffset \topoffset \layoutparameter\c!veroffset \global\setdimentoatleast\makeupwidth\onepoint \global\setdimentoatleast\makeupheight \onepoint % \checkcurrentlayout % here ? % \the\everyafterlayout \calculatelayoutextras \calculatehsizes \calculatevsizes \calculatepseudocolumns \recalculatebackgrounds} \definelayout[middleheight][topspace=4cm,bottomspace=0cm,height=middle] \definelayout[autoheight] [topspace=4cm,bottomspace=0cm,height=auto] \definelayout[middlewidth] [backspace=4cm,cutspace=0cm,width=middle] \definelayout[autowidth] [backspace=4cm,cutspace=0cm,width=auto] \setuppapersize[A4][A3]\setuplayout[location=middle] \showframe \starttext \setuplayout[middleheight]\page[empty] \setuplayout[autoheight] \page[empty] \setuplayout[reset] \page[empty] \setuplayout[middlewidth] \page[empty] \setuplayout[autowidth] \page[empty] \setuplayout[reset] \page[empty] \stoptext Wolfgang