diff options
Diffstat (limited to 'metapost/context/base/mpxl/mp-page.mpxl')
| -rw-r--r-- | metapost/context/base/mpxl/mp-page.mpxl | 156 |
1 files changed, 91 insertions, 65 deletions
diff --git a/metapost/context/base/mpxl/mp-page.mpxl b/metapost/context/base/mpxl/mp-page.mpxl index 525a5b157..c36dd6487 100644 --- a/metapost/context/base/mpxl/mp-page.mpxl +++ b/metapost/context/base/mpxl/mp-page.mpxl @@ -52,83 +52,109 @@ immutable % permanent % We could go for just setting them (:=): -path mfun_page_area[][] ; -pair mfun_page_location[][] ; -path mfun_page_field[][] ; -numeric mfun_page_vsize[] ; -numeric mfun_page_hsize[] ; -numeric mfun_page_vstep[] ; -numeric mfun_page_hstep[] ; +path mfun_page_area [][][] ; +pair mfun_page_location[][][] ; +path mfun_page_field [][][] ; +numeric mfun_page_vsize [][] ; +numeric mfun_page_hsize [][] ; +numeric mfun_page_vstep [][] ; +numeric mfun_page_hstep [][] ; -newinternal mfun_page_done ; mfun_page_done := 0 ; +numeric mfun_page_odd ; mfun_page_odd := 1 ; def mfun_page_check_vsize = - mfun_page_vsize[Top] := TopHeight ; - mfun_page_vsize[TopSeparator] := TopDistance ; - mfun_page_vsize[Header] := HeaderHeight ; - mfun_page_vsize[HeaderSeparator] := HeaderDistance ; - mfun_page_vsize[Text] := TextHeight ; - mfun_page_vsize[FooterSeparator] := FooterDistance ; - mfun_page_vsize[Footer] := FooterHeight ; - mfun_page_vsize[BottomSeparator] := BottomDistance ; - mfun_page_vsize[Bottom] := BottomHeight ; + mfun_page_vsize[mfun_page_odd][Top] := TopHeight ; + mfun_page_vsize[mfun_page_odd][TopSeparator] := TopDistance ; + mfun_page_vsize[mfun_page_odd][Header] := HeaderHeight ; + mfun_page_vsize[mfun_page_odd][HeaderSeparator] := HeaderDistance ; + mfun_page_vsize[mfun_page_odd][Text] := TextHeight ; + mfun_page_vsize[mfun_page_odd][FooterSeparator] := FooterDistance ; + mfun_page_vsize[mfun_page_odd][Footer] := FooterHeight ; + mfun_page_vsize[mfun_page_odd][BottomSeparator] := BottomDistance ; + mfun_page_vsize[mfun_page_odd][Bottom] := BottomHeight ; enddef ; def mfun_page_check_hsize = - mfun_page_hsize[LeftEdge] := LeftEdgeWidth ; - mfun_page_hsize[LeftEdgeSeparator] := LeftEdgeDistance ; - mfun_page_hsize[LeftMargin] := LeftMarginWidth ; - mfun_page_hsize[LeftMarginSeparator] := LeftMarginDistance ; - mfun_page_hsize[Text] := MakeupWidth ; - mfun_page_hsize[RightMarginSeparator] := RightMarginDistance ; - mfun_page_hsize[RightMargin] := RightMarginWidth ; - mfun_page_hsize[RightEdgeSeparator] := RightEdgeDistance ; - mfun_page_hsize[RightEdge] := RightEdgeWidth ; + mfun_page_hsize[mfun_page_odd][LeftEdge] := LeftEdgeWidth ; + mfun_page_hsize[mfun_page_odd][LeftEdgeSeparator] := LeftEdgeDistance ; + mfun_page_hsize[mfun_page_odd][LeftMargin] := LeftMarginWidth ; + mfun_page_hsize[mfun_page_odd][LeftMarginSeparator] := LeftMarginDistance ; + mfun_page_hsize[mfun_page_odd][Text] := MakeupWidth ; + mfun_page_hsize[mfun_page_odd][RightMarginSeparator] := RightMarginDistance ; + mfun_page_hsize[mfun_page_odd][RightMargin] := RightMarginWidth ; + mfun_page_hsize[mfun_page_odd][RightEdgeSeparator] := RightEdgeDistance ; + mfun_page_hsize[mfun_page_odd][RightEdge] := RightEdgeWidth ; enddef ; def mfun_page_check_vstep = - mfun_page_vstep[TopSeparator] := PaperHeight-TopSpace ; - mfun_page_vstep[Top] := mfun_page_vstep[TopSeparator] +mfun_page_vsize[TopSeparator] ; - mfun_page_vstep[Header] := mfun_page_vstep[TopSeparator] -mfun_page_vsize[Header] ; - mfun_page_vstep[HeaderSeparator] := mfun_page_vstep[Header] -mfun_page_vsize[HeaderSeparator] ; - mfun_page_vstep[Text] := mfun_page_vstep[HeaderSeparator]-mfun_page_vsize[Text] ; - mfun_page_vstep[FooterSeparator] := mfun_page_vstep[Text] -mfun_page_vsize[FooterSeparator] ; - mfun_page_vstep[Footer] := mfun_page_vstep[FooterSeparator]-mfun_page_vsize[Footer] ; - mfun_page_vstep[BottomSeparator] := mfun_page_vstep[Footer] -mfun_page_vsize[BottomSeparator] ; - mfun_page_vstep[Bottom] := mfun_page_vstep[BottomSeparator]-mfun_page_vsize[Bottom] ; + mfun_page_vstep[mfun_page_odd][TopSeparator] := PaperHeight-TopSpace ; + mfun_page_vstep[mfun_page_odd][Top] := mfun_page_vstep[mfun_page_odd][TopSeparator] +mfun_page_vsize[mfun_page_odd][TopSeparator] ; + mfun_page_vstep[mfun_page_odd][Header] := mfun_page_vstep[mfun_page_odd][TopSeparator] -mfun_page_vsize[mfun_page_odd][Header] ; + mfun_page_vstep[mfun_page_odd][HeaderSeparator] := mfun_page_vstep[mfun_page_odd][Header] -mfun_page_vsize[mfun_page_odd][HeaderSeparator] ; + mfun_page_vstep[mfun_page_odd][Text] := mfun_page_vstep[mfun_page_odd][HeaderSeparator]-mfun_page_vsize[mfun_page_odd][Text] ; + mfun_page_vstep[mfun_page_odd][FooterSeparator] := mfun_page_vstep[mfun_page_odd][Text] -mfun_page_vsize[mfun_page_odd][FooterSeparator] ; + mfun_page_vstep[mfun_page_odd][Footer] := mfun_page_vstep[mfun_page_odd][FooterSeparator]-mfun_page_vsize[mfun_page_odd][Footer] ; + mfun_page_vstep[mfun_page_odd][BottomSeparator] := mfun_page_vstep[mfun_page_odd][Footer] -mfun_page_vsize[mfun_page_odd][BottomSeparator] ; + mfun_page_vstep[mfun_page_odd][Bottom] := mfun_page_vstep[mfun_page_odd][BottomSeparator]-mfun_page_vsize[mfun_page_odd][Bottom] ; enddef ; def mfun_page_check_hstep = - mfun_page_hstep[Text] := BackSpace ; - mfun_page_hstep[LeftMarginSeparator] := mfun_page_hstep[Text] -mfun_page_hsize[LeftMarginSeparator] ; - mfun_page_hstep[RightMarginSeparator] := mfun_page_hstep[Text] +mfun_page_hsize[Text] ; - mfun_page_hstep[LeftMargin] := mfun_page_hstep[LeftMarginSeparator] -mfun_page_hsize[LeftMargin] ; - mfun_page_hstep[RightMargin] := mfun_page_hstep[RightMarginSeparator]+mfun_page_hsize[RightMarginSeparator] ; - mfun_page_hstep[LeftEdgeSeparator] := mfun_page_hstep[LeftMargin] -mfun_page_hsize[LeftEdgeSeparator] ; - mfun_page_hstep[LeftEdge] := mfun_page_hstep[LeftEdgeSeparator] -mfun_page_hsize[LeftEdge] ; - mfun_page_hstep[RightEdgeSeparator] := mfun_page_hstep[RightMargin] +mfun_page_hsize[RightMargin] ; - mfun_page_hstep[RightEdge] := mfun_page_hstep[RightEdgeSeparator] +mfun_page_hsize[RightEdgeSeparator] ; + mfun_page_hstep[mfun_page_odd][Text] := BackSpace ; + mfun_page_hstep[mfun_page_odd][LeftMarginSeparator] := mfun_page_hstep[mfun_page_odd][Text] -mfun_page_hsize[mfun_page_odd][LeftMarginSeparator] ; + mfun_page_hstep[mfun_page_odd][RightMarginSeparator] := mfun_page_hstep[mfun_page_odd][Text] +mfun_page_hsize[mfun_page_odd][Text] ; + mfun_page_hstep[mfun_page_odd][LeftMargin] := mfun_page_hstep[mfun_page_odd][LeftMarginSeparator] -mfun_page_hsize[mfun_page_odd][LeftMargin] ; + mfun_page_hstep[mfun_page_odd][RightMargin] := mfun_page_hstep[mfun_page_odd][RightMarginSeparator]+mfun_page_hsize[mfun_page_odd][RightMarginSeparator] ; + mfun_page_hstep[mfun_page_odd][LeftEdgeSeparator] := mfun_page_hstep[mfun_page_odd][LeftMargin] -mfun_page_hsize[mfun_page_odd][LeftEdgeSeparator] ; + mfun_page_hstep[mfun_page_odd][LeftEdge] := mfun_page_hstep[mfun_page_odd][LeftEdgeSeparator] -mfun_page_hsize[mfun_page_odd][LeftEdge] ; + mfun_page_hstep[mfun_page_odd][RightEdgeSeparator] := mfun_page_hstep[mfun_page_odd][RightMargin] +mfun_page_hsize[mfun_page_odd][RightMargin] ; + mfun_page_hstep[mfun_page_odd][RightEdge] := mfun_page_hstep[mfun_page_odd][RightEdgeSeparator] +mfun_page_hsize[mfun_page_odd][RightEdgeSeparator] ; +enddef ; + +numeric mfun_last_changed_page ; mfun_last_changed_page := -1 ; +boolean mfun_page_done_odd ; mfun_page_done_odd := false ; +boolean mfun_page_done_even ; mfun_page_done_even := false ; + +def mfun_check_page_dimensions_indeed = + mfun_page_check_vsize ; + mfun_page_check_hsize ; + mfun_page_check_vstep ; + mfun_page_check_hstep ; enddef ; def mfun_check_page_dimensions = - if mfun_page_done <> RealPageNumber : - if LayoutHasChanged : - mfun_page_check_vsize ; - mfun_page_check_hsize ; - mfun_page_check_vstep ; - mfun_page_check_hstep ; + begingroup ; + save n ; n := LastChangedLayoutPage ; + SwapMarginDimensions ; % always + if mfun_last_changed_page <> n : + report("page", "layout changed") ; + mfun_page_done_odd := false ; + mfun_page_done_even := false ; + mfun_last_changed_page := n ; + fi ; + if odd RealPageNumber : + mfun_page_odd := 1 ; + if not mfun_page_done_odd : + report("page", "checking odd") ; + mfun_check_page_dimensions_indeed ; + mfun_page_done_odd := true ; + fi ; + else : + mfun_page_odd := 2 ; + if not mfun_page_done_even : + report("page", "checking even") ; + mfun_check_page_dimensions_indeed ; + mfun_page_done_even := true ; fi ; - mfun_page_done := RealPageNumber ; fi ; + endgroup ; enddef; - def mfun_check_page_area = mfun_check_page_dimensions ; for VerPos=Top step 10 until Bottom: for HorPos=LeftEdge step 1 until RightEdge: - mfun_page_area[HorPos][VerPos] := unitsquare xscaled mfun_page_hsize[HorPos] yscaled mfun_page_vsize[VerPos] ; - mfun_page_area[VerPos][HorPos] := mfun_page_area[HorPos][VerPos] ; + mfun_page_area[mfun_page_odd][HorPos][VerPos] := unitsquare xscaled mfun_page_hsize[mfun_page_odd][HorPos] yscaled mfun_page_vsize[where][VerPos] ; + mfun_page_area[mfun_page_odd][VerPos][HorPos] := mfun_page_area[mfun_page_odd][HorPos][VerPos] ; endfor ; endfor ; enddef ; @@ -137,8 +163,8 @@ def mfun_check_page_location = mfun_check_page_dimensions ; for VerPos=Top step 10 until Bottom: for HorPos=LeftEdge step 1 until RightEdge: - mfun_page_location[HorPos][VerPos] := (mfun_page_hstep[HorPos],mfun_page_vstep[VerPos]) ; - mfun_page_location[VerPos][HorPos] := mfun_page_location[HorPos][VerPos] ; + mfun_page_location[mfun_page_odd][HorPos][VerPos] := (mfun_page_hstep[mfun_page_odd][HorPos],mfun_page_vstep[mfun_page_odd][VerPos]) ; + mfun_page_location[mfun_page_odd][VerPos][HorPos] := mfun_page_location[mfun_page_odd][HorPos][VerPos] ; endfor ; endfor ; enddef ; @@ -147,19 +173,19 @@ def mfun_check_page_field = mfun_check_page_dimensions ; for VerPos=Top step 10 until Bottom: for HorPos=LeftEdge step 1 until RightEdge: - mfun_page_field[HorPos][VerPos] := unitsquare xscaled mfun_page_hsize[HorPos] yscaled mfun_page_vsize[VerPos] shifted (mfun_page_hstep[HorPos],mfun_page_vstep[VerPos]) ; - mfun_page_field[VerPos][HorPos] := mfun_page_field[HorPos][VerPos] ; + mfun_page_field[mfun_page_odd][HorPos][VerPos] := unitsquare xscaled mfun_page_hsize[mfun_page_odd][HorPos] yscaled mfun_page_vsize[mfun_page_odd][VerPos] shifted (mfun_page_hstep[mfun_page_odd][HorPos],mfun_page_vstep[mfun_page_odd][VerPos]) ; + mfun_page_field[mfun_page_odd][VerPos][HorPos] := mfun_page_field[mfun_page_odd][HorPos][VerPos] ; endfor ; endfor ; enddef ; -def Area = hide(mfun_check_page_area ;) mfun_page_area enddef ; -def Location = hide(mfun_check_page_location ;) mfun_page_location enddef ; -def Field = hide(mfun_check_page_field ;) mfun_page_field enddef ; -def Vsize = hide(mfun_check_page_dimensions ;) mfun_page_vsize enddef ; -def Hsize = hide(mfun_check_page_dimensions ;) mfun_page_hsize enddef ; -def Vstep = hide(mfun_check_page_dimensions ;) mfun_page_vstep enddef ; -def Hstep = hide(mfun_check_page_dimensions ;) mfun_page_hstep enddef ; +def Area = hide(mfun_check_page_area ;) mfun_page_area [mfun_page_odd] enddef ; +def Location = hide(mfun_check_page_location ;) mfun_page_location[mfun_page_odd] enddef ; +def Field = hide(mfun_check_page_field ;) mfun_page_field [mfun_page_odd] enddef ; +def Vsize = hide(mfun_check_page_dimensions ;) mfun_page_vsize [mfun_page_odd] enddef ; +def Hsize = hide(mfun_check_page_dimensions ;) mfun_page_hsize [mfun_page_odd] enddef ; +def Vstep = hide(mfun_check_page_dimensions ;) mfun_page_vstep [mfun_page_odd] enddef ; +def Hstep = hide(mfun_check_page_dimensions ;) mfun_page_hstep [mfun_page_odd] enddef ; immutable % permanent Area, Location, Field, Vsize, Hsize, Vstep, Hstep ; 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