diff options
Diffstat (limited to 'metapost/context/base/mp-core.mpiv')
| -rw-r--r-- | metapost/context/base/mp-core.mpiv | 1849 |
1 files changed, 917 insertions, 932 deletions
diff --git a/metapost/context/base/mp-core.mpiv b/metapost/context/base/mp-core.mpiv index 8fc32c420..1297802e9 100644 --- a/metapost/context/base/mp-core.mpiv +++ b/metapost/context/base/mp-core.mpiv @@ -1,5 +1,17 @@ -if unknown context_tool : input mp-tool ; fi ; -if known context_core : endinput ; fi ; +%D \module +%D [ file=mp-core.mp, +%D version=1999.08.01, % anchoring +%D title=\CONTEXT\ \METAPOST\ graphics, +%D subtitle=background macros, +%D author=Hans Hagen, +%D date=\currentdate, +%D copyright={PRAGMA / Hans Hagen \& Ton Otten}] +%C +%C This module is part of the \CONTEXT\ macro||package and is +%C therefore copyrighted by \PRAGMA. See mreadme.pdf for +%C details. + +if known context_core : endinput ; fi ; boolean context_core ; context_core := true ; @@ -45,19 +57,14 @@ def freeze_box (expr pos) = enddef ; def initialize_box (expr n,x,y,w,h,d) = - numeric bpos ; bpos := 0 ; initialize_box_pos(bpos,n,x,y,w,h,d) ; - enddef ; def initialize_area (expr fn,fx,fy,fw,fh,fd, tn,tx,ty,tw,th,td) = - numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ; numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ; - do_initialize_area (fpos, tpos) ; - enddef ; def do_initialize_area (expr fpos, tpos) = @@ -125,182 +132,187 @@ enddef ; def do_initialize_par (expr fpos, tpos, mpos, ppos, rw,rl,rr,rh,ra,ri) = - pair lref, rref, pref, lhref, rhref ; - - % clip the page area to the left and right skips - - llxy[mpos] := llxy[mpos] shifted (+rl,0) ; - lrxy[mpos] := lrxy[mpos] shifted (-rr,0) ; - urxy[mpos] := urxy[mpos] shifted (-rr,0) ; - ulxy[mpos] := ulxy[mpos] shifted (+rl,0) ; - - % fixate the leftskip, rightskip and hanging indentation - - lref := (xpart llxy[mpos],ypart ulxy[ppos]) ; lhref := lref shifted (rh,0) ; - rref := (xpart lrxy[mpos],ypart urxy[ppos]) ; rhref := rref shifted (rh,0) ; - - pref := lxy[ppos] ; - - if nxy[tpos] > nxy[fpos] : - if nxy[fpos] = nxy[mpos] : - % first of multiple pages - llxy[tpos] := llxy[mpos] ; - lrxy[tpos] := lrxy[mpos] ; - urxy[tpos] := lrxy[mpos] shifted (0,par_line_height) ; - ulxy[tpos] := llxy[mpos] shifted (0,par_line_height) ; - boxgriddirection := down ; - elseif nxy[tpos] = nxy[mpos] : - % last of multiple pages - llxy[fpos] := ulxy[mpos] shifted (0,-par_line_height) ; - lrxy[fpos] := urxy[mpos] shifted (0,-par_line_height) ; - urxy[fpos] := urxy[mpos] ; - ulxy[fpos] := ulxy[mpos] ; - boxgriddirection := up ; + pair lref, rref, pref, lhref, rhref ; + + % clip the page area to the left and right skips + + llxy[mpos] := llxy[mpos] shifted (+rl,0) ; + lrxy[mpos] := lrxy[mpos] shifted (-rr,0) ; + urxy[mpos] := urxy[mpos] shifted (-rr,0) ; + ulxy[mpos] := ulxy[mpos] shifted (+rl,0) ; + + % fixate the leftskip, rightskip and hanging indentation + + lref := (xpart llxy[mpos],ypart ulxy[ppos]) ; lhref := lref shifted (rh,0) ; + rref := (xpart lrxy[mpos],ypart urxy[ppos]) ; rhref := rref shifted (rh,0) ; + + pref := lxy[ppos] ; + + if nxy[tpos] > nxy[fpos] : + if nxy[fpos] = nxy[mpos] : + % first of multiple pages + llxy[tpos] := llxy[mpos] ; + lrxy[tpos] := lrxy[mpos] ; + urxy[tpos] := lrxy[mpos] shifted (0,par_line_height) ; + ulxy[tpos] := llxy[mpos] shifted (0,par_line_height) ; + boxgriddirection := down ; + elseif nxy[tpos] = nxy[mpos] : + % last of multiple pages + llxy[fpos] := ulxy[mpos] shifted (0,-par_line_height) ; + lrxy[fpos] := urxy[mpos] shifted (0,-par_line_height) ; + urxy[fpos] := urxy[mpos] ; + ulxy[fpos] := ulxy[mpos] ; + boxgriddirection := up ; + else : + % middle of multiple pages + llxy[fpos] := ulxy[mpos] shifted (0,-par_line_height) ; + lrxy[fpos] := urxy[mpos] shifted (0,-par_line_height) ; + urxy[fpos] := urxy[mpos] ; + ulxy[fpos] := ulxy[mpos] ; + llxy[tpos] := llxy[mpos] ; + lrxy[tpos] := lrxy[mpos] ; + urxy[tpos] := lrxy[mpos] shifted (0,par_line_height) ; + ulxy[tpos] := llxy[mpos] shifted (0,par_line_height) ; + boxgriddirection := up ; + fi ; else : - % middle of multiple pages - llxy[fpos] := ulxy[mpos] shifted (0,-par_line_height) ; - lrxy[fpos] := urxy[mpos] shifted (0,-par_line_height) ; - urxy[fpos] := urxy[mpos] ; - ulxy[fpos] := ulxy[mpos] ; - llxy[tpos] := llxy[mpos] ; - lrxy[tpos] := lrxy[mpos] ; - urxy[tpos] := lrxy[mpos] shifted (0,par_line_height) ; - ulxy[tpos] := llxy[mpos] shifted (0,par_line_height) ; - boxgriddirection := up ; + % just one page + boxgriddirection := up ; fi ; - else : - % just one page - boxgriddirection := up ; - fi ; - path txy, bxy, pxy, mxy ; + path txy, bxy, pxy, mxy ; - txy := originpath ; % top - bxy := originpath ; % bottom - pxy := originpath ; % composed + txy := originpath ; % top + bxy := originpath ; % bottom + pxy := originpath ; % composed - boolean lefthang, righthang, somehang ; + boolean lefthang, righthang, somehang ; - % we only hang on the first of a multiple page background + % we only hang on the first of a multiple page background - if nxy[mpos] > nxy[fpos] : - lefthang := righthang := somehang := false ; - else : - lefthang := (rh>0) ; righthang := (rh<0) ; somehang := false ; - fi ; + if nxy[mpos] > nxy[fpos] : + lefthang := righthang := somehang := false ; + else : + lefthang := (rh>0) ; righthang := (rh<0) ; somehang := false ; + fi ; - if lefthang : - mxy := boundingbox (lref -- lref shifted (rh,ra*par_line_height)) ; - elseif righthang : - mxy := boundingbox (rref -- rref shifted (rh,ra*par_line_height)) ; - else : - mxy := originpath ; - fi ; + if lefthang : + mxy := boundingbox (lref -- lref shifted (rh,ra*par_line_height)) ; + elseif righthang : + mxy := boundingbox (rref -- rref shifted (rh,ra*par_line_height)) ; + else : + mxy := originpath ; + fi ; - if round(ypart llxy[fpos]) = round(ypart llxy[tpos]) : + if round(ypart llxy[fpos]) = round(ypart llxy[tpos]) : - % We have a one-liner. Watch how er use the bottom pos for - % determining the height. + % We have a one-liner. Watch how er use the bottom pos for + % determining the height. - llxy[fpos] := (xpart llxy[fpos], ypart llxy[tpos]) ; - ulxy[fpos] := (xpart ulxy[fpos], ypart ulxy[tpos]) ; + llxy[fpos] := (xpart llxy[fpos], ypart llxy[tpos]) ; + ulxy[fpos] := (xpart ulxy[fpos], ypart ulxy[tpos]) ; - else : + else : - % We have a multi-liner. For convenience we now correct the - % begin and end points for indentation. + % We have a multi-liner. For convenience we now correct the + % begin and end points for indentation. - if lefthang and (round(ypart llxy[tpos]) >= round(ypart lrcorner mxy)) : - llxy[tpos] := (xpart lhref, ypart llxy[tpos]) ; - ulxy[tpos] := (xpart lhref, ypart ulxy[tpos]) ; - else : - llxy[tpos] := (xpart lref, ypart llxy[tpos]) ; - ulxy[tpos] := (xpart lref, ypart ulxy[tpos]) ; - fi ; + if lefthang and (round(ypart llxy[tpos]) >= round(ypart lrcorner mxy)) : + llxy[tpos] := (xpart lhref, ypart llxy[tpos]) ; + ulxy[tpos] := (xpart lhref, ypart ulxy[tpos]) ; + else : + llxy[tpos] := (xpart lref, ypart llxy[tpos]) ; + ulxy[tpos] := (xpart lref, ypart ulxy[tpos]) ; + fi ; - if righthang and (round(ypart lrxy[fpos]) >= round(ypart llcorner mxy)) : - lrxy[fpos] := (xpart rhref, ypart lrxy[fpos]) ; - urxy[fpos] := (xpart rhref, ypart urxy[fpos]) ; - else : - lrxy[fpos] := (xpart rref, ypart lrxy[fpos]) ; - urxy[fpos] := (xpart rref, ypart urxy[fpos]) ; - fi ; + if righthang and (round(ypart lrxy[fpos]) >= round(ypart llcorner mxy)) : + lrxy[fpos] := (xpart rhref, ypart lrxy[fpos]) ; + urxy[fpos] := (xpart rhref, ypart urxy[fpos]) ; + else : + lrxy[fpos] := (xpart rref, ypart lrxy[fpos]) ; + urxy[fpos] := (xpart rref, ypart urxy[fpos]) ; + fi ; - fi ; + fi ; - somehang := (ypart ulxy[fpos]>ypart llcorner mxy) and - (ypart llxy[tpos]<ypart llcorner mxy) ; + somehang := (ypart ulxy[fpos]>ypart llcorner mxy) and + (ypart llxy[tpos]<ypart llcorner mxy) ; - if round(ypart llxy[fpos]) = round(ypart llxy[tpos]) : + if round(ypart llxy[fpos]) = round(ypart llxy[tpos]) : - % A (short) one-liner goes into the top box. + % A (short) one-liner goes into the top box. - txy := llxy[fpos] -- lrxy[tpos] -- urxy[tpos] -- ulxy[fpos] -- cycle ; + txy := llxy[fpos] -- lrxy[tpos] -- urxy[tpos] -- ulxy[fpos] -- cycle ; - elseif (round(ypart llxy[fpos]) = round(ypart ulxy[tpos])) and - (round(xpart lrxy[tpos]) < round(xpart llxy[fpos])) : + elseif (round(ypart llxy[fpos]) = round(ypart ulxy[tpos])) and + (round(xpart lrxy[tpos]) < round(xpart llxy[fpos])) : - % We have a sentence that spans two lines but with only end - % of line and begin of line segments. We need to take care of - % indentation. + % We have a sentence that spans two lines but with only end + % of line and begin of line segments. We need to take care of + % indentation. - txy := llxy[fpos] -- lrxy[fpos] -- urxy[fpos] -- ulxy[fpos] -- cycle ; - bxy := llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- ulxy[tpos] -- cycle ; + txy := llxy[fpos] -- lrxy[fpos] -- urxy[fpos] -- ulxy[fpos] -- cycle ; + bxy := llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- ulxy[tpos] -- cycle ; - elseif (round(ypart llxy[fpos]) = round(ypart ulxy[tpos])) : + elseif (round(ypart llxy[fpos]) = round(ypart ulxy[tpos])) : - % We have a sentence that spans two lines but with overlap. + % We have a sentence that spans two lines but with overlap. - pxy := llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- lrxy[fpos] -- - urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- ulxy[tpos] -- cycle ; + pxy := + llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- lrxy[fpos] -- + urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- ulxy[tpos] -- cycle ; - elseif lefthang and somehang : + elseif lefthang and somehang : - % We have a sentence that spans more than two lines with - % left hanging indentation. + % We have a sentence that spans more than two lines with + % left hanging indentation. - pxy := llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- - (xpart urxy[fpos],ypart urxy[tpos]) -- - urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- - if round(ypart urxy[tpos]) < round(ypart llcorner mxy) : - (xpart lrcorner mxy,ypart llxy[fpos]) -- - lrcorner mxy -- - (xpart llxy[tpos],ypart llcorner mxy) -- - else : - (xpart llxy[tpos],ypart llxy[fpos]) -- - fi - cycle ; + pxy := + llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- + (xpart urxy[fpos],ypart urxy[tpos]) -- + urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- + if round(ypart urxy[tpos]) < round(ypart llcorner mxy) : + (xpart lrcorner mxy,ypart llxy[fpos]) -- + lrcorner mxy -- + (xpart llxy[tpos],ypart llcorner mxy) -- + else : + (xpart llxy[tpos],ypart llxy[fpos]) -- + fi + cycle ; - elseif righthang and somehang : + elseif righthang and somehang : - % We have a sentence that spans more than two lines with - % right hanging indentation. + % We have a sentence that spans more than two lines with + % right hanging indentation. - pxy := llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- - if round(ypart urxy[tpos]) < round(ypart llcorner mxy) : - (xpart lrcorner mxy,ypart urxy[tpos]) -- - lrcorner mxy -- llcorner mxy -- - else : - (xpart urxy[fpos],ypart urxy[tpos]) -- - fi - urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- - (xpart llxy[tpos],ypart llxy[fpos]) -- - cycle ; + pxy := + llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- + if round(ypart urxy[tpos]) < round(ypart llcorner mxy) : + (xpart lrcorner mxy,ypart urxy[tpos]) -- + lrcorner mxy -- llcorner mxy -- + else : + (xpart urxy[fpos],ypart urxy[tpos]) -- + fi + urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- + (xpart llxy[tpos],ypart llxy[fpos]) -- + cycle ; - else : + else : - % We have a sentence that spans more than two lines with - % no hanging indentation. + % We have a sentence that spans more than two lines with + % no hanging indentation. - pxy := llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- - (xpart urxy[fpos],ypart urxy[tpos]) -- - urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- - (xpart llxy[tpos],ypart llxy[fpos]) -- cycle ; + pxy := + llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- + (xpart urxy[fpos],ypart urxy[tpos]) -- + urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- + (xpart llxy[tpos],ypart llxy[fpos]) -- + cycle ; - fi ; + fi ; - pxy := simplified pxy ; - pxy := unspiked pxy ; + pxy := simplified pxy ; + pxy := unspiked pxy ; enddef ; @@ -310,10 +322,10 @@ StrutHeight := 0 ; % will move pair last_multi_par_shift ; last_multi_par_shift := origin ; def relocate_multipars (expr xy) = - last_multi_par_shift := xy ; - for i=1 upto nofmultipars : - multipars[i] := multipars[i] shifted last_multi_par_shift ; - endfor ; + last_multi_par_shift := xy ; + for i=1 upto nofmultipars : + multipars[i] := multipars[i] shifted last_multi_par_shift ; + endfor ; enddef ; boolean compensate_multi_par_topskip ; @@ -327,8 +339,7 @@ auto_multi_par_hsize := false ; % true ; enable_multi_par_fallback := true ; vardef multi_par_at_top (expr i) = - (round (ypart ulcorner multipars[i]) = round (ypart ulcorner - (TextAreas[multirefs[i]] shifted last_multi_par_shift))) + (round (ypart ulcorner multipars[i]) = round (ypart ulcorner (TextAreas[multirefs[i]] shifted last_multi_par_shift))) enddef ; numeric nofmultipars ; nofmultipars := 0 ; @@ -345,16 +356,16 @@ boolean check_multi_par_chain ; check_multi_par_chain := true ; % extra page boolean multi_column_first_page_hack; multi_column_first_page_hack := true ; % seems to work ok def simplify_multi_pars = % boundingbox ipv shape als optie - for i := 1 upto nofmultipars : - multipars[i] := boundingbox multipars[i] ; - endfor ; + for i := 1 upto nofmultipars : + multipars[i] := boundingbox multipars[i] ; + endfor ; enddef ; def save_multipar (expr i, l, p) = - nofmultipars := nofmultipars + 1 ; - multirefs[nofmultipars] := i ; - multilocs[nofmultipars] := l ; - multipars[nofmultipars] := unspiked (simplified p) ; + nofmultipars := nofmultipars + 1 ; + multirefs[nofmultipars] := i ; + multilocs[nofmultipars] := l ; + multipars[nofmultipars] := unspiked (simplified p) ; enddef ; def prepare_multi_pars (expr fn,fx,fy,fw,fh,fd, @@ -363,597 +374,576 @@ def prepare_multi_pars (expr fn,fx,fy,fw,fh,fd, pn,px,py,pw,ph,pd, rw,rl,rr,rh,ra,ri) = - if span_multi_column_pars : - begingroup ; - save TextAreas ; path TextAreas[] ; - save NOfTextAreas ; numeric NOfTextAreas ; - for i=1 upto NOfTextColumns : - TextAreas[i] := TextColumns[i] ; - endfor ; - NOfTextAreas := NOfTextColumns ; - fi ; - - last_multi_par_shift := origin ; - - numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ; - numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ; - numeric wpos ; wpos := 3 ; initialize_box_pos(wpos,wn,wx,wy,ww,wh,wd) ; - numeric ppos ; ppos := 4 ; initialize_box_pos(ppos,pn,px,py,pw,ph,pd) ; - - if local_multi_par_area : - RealPageNumber := fn ; - NOfTextAreas := 1 ; - NOfSavedTextAreas := 0 ; - TextAreas[1] := TextAreas[0] ; - TextColumns[1] := TextColumns[0] ; - nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ; - elseif ignore_multi_par_page : - RealPageNumber := fn ; - nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ; - fi ; - - numeric par_strut_height, par_strut_depth, par_line_height ; - - set_par_line_height (ph, pd) ; - - numeric par_hang_indent, par_hang_after, par_indent, par_left_skip, par_right_skip ; - - par_hang_indent := rh ; - par_hang_after := ra ; - par_indent := ri ; - par_left_skip := rl ; - par_right_skip := rr ; - - pair par_start_pos ; - pair par_stop_pos ; - - par_start_pos := llxy[fpos] - if par_indent <0: shifted (-par_indent, 0) fi - if par_left_skip<0: shifted (-par_left_skip,0) fi ; - par_stop_pos := lrxy[tpos] - if par_right_skip<0: shifted (par_right_skip,0) fi ; % nasty as the endpos can be shifted by rightskip - - if wxy[wpos]>0 : - left_skip := rl + xpart llxy[wpos] - xpart llxy[ppos] ; - right_skip := rw - left_skip - ww ; - else : - left_skip := rl ; - right_skip := rr ; - fi ; - - path multipar, multipars[] ; - numeric multiref, multirefs[] ; - numeric multiloc, multilocs[] ; % 1=begin 2=between 3=end - - numeric multi_par_pages ; multi_par_pages := nxy[tpos]-nxy[fpos]+1 ; - - % locals .. why can't i move these outside? - -vardef _pmp_set_multipar_ (expr i) = - ( (TextAreas[i] leftenlarged -left_skip) rightenlarged (-right_skip - if auto_multi_par_hsize : + rw - bbwidth(TextAreas[i]) fi) ) -enddef ; + if span_multi_column_pars : + begingroup ; + save TextAreas ; path TextAreas[] ; + save NOfTextAreas ; numeric NOfTextAreas ; + for i=1 upto NOfTextColumns : + TextAreas[i] := TextColumns[i] ; + endfor ; + NOfTextAreas := NOfTextColumns ; + fi ; -vardef _pmp_snapped_multi_pos_ (expr p) = - if snap_multi_par_tops : - if abs(ypart p - ypart ulcorner multipar) < par_line_height : - (xpart p,ypart ulcorner multipar) - else : - p - fi - else : - p - fi -enddef ; + last_multi_par_shift := origin ; -vardef _pmp_estimated_par_lines_ (expr h) = - round(h/par_line_height) -enddef ; + numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ; + numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ; + numeric wpos ; wpos := 3 ; initialize_box_pos(wpos,wn,wx,wy,ww,wh,wd) ; + numeric ppos ; ppos := 4 ; initialize_box_pos(ppos,pn,px,py,pw,ph,pd) ; -vardef _pmp_top_multi_par_(expr p) = - (round(_pmp_estimated_par_lines_(bbheight(p)*par_line_height))=round(bbheight(p))) -enddef ; + if local_multi_par_area : + RealPageNumber := fn ; + NOfTextAreas := 1 ; + NOfSavedTextAreas := 0 ; + TextAreas[1] := TextAreas[0] ; + TextColumns[1] := TextColumns[0] ; + nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ; + elseif ignore_multi_par_page : + RealPageNumber := fn ; + nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ; + fi ; -vardef _pmp_multi_par_tsc_(expr p) = - if _pmp_top_multi_par_(p) : TopSkipCorrection else : 0 fi -enddef ; + numeric par_strut_height, par_strut_depth, par_line_height ; -vardef _pmp_estimated_multi_par_height_ (expr n, t) = - if round(par_line_height)=0 : - 0 - else : - save ok, h ; boolean ok ; - numeric h ; h := 0 ; - ok := false ; - if (nxy[fpos]=RealPageNumber-1) : - for i := 1 upto NOfSavedTextAreas : - if (InsideSavedTextArea(i,par_start_pos)) : - ok := true ; - h := h + _pmp_estimated_par_lines_(ypart ulxy[fpos] - - ypart llcorner SavedTextAreas[i]) ; - elseif ok : - h := h + _pmp_estimated_par_lines_(bbheight(SavedTextAreas[i])) ; - fi ; - endfor ; - fi ; - if ok : - for i := 1 upto n-1 : - h := h + _pmp_estimated_par_lines_(bbheight(TextAreas[i])) ; - endfor ; - else : - % already: ok := false ; - for i := 1 upto n-1 : - if (InsideTextArea(i,par_start_pos)) : - ok := true ; - h := h + _pmp_estimated_par_lines_(ypart ulxy[fpos] - ypart llcorner TextAreas[i]) ; - elseif ok : - h := h + _pmp_estimated_par_lines_(bbheight(TextAreas[i])) ; - fi ; - endfor ; - fi ; - h - fi -enddef ; + set_par_line_height (ph, pd) ; -vardef _pmp_left_top_hang_ (expr same_area) = + numeric par_hang_indent, par_hang_after, par_indent, par_left_skip, par_right_skip ; - par_hang_after := ra + _pmp_estimated_par_lines_(py-fy) ; + par_hang_indent := rh ; + par_hang_after := ra ; + par_indent := ri ; + par_left_skip := rl ; + par_right_skip := rr ; - if (par_hang_indent>0) and (par_hang_after<0) and obey_multi_par_hang : - pair _ul_ ; _ul_ := (xpart ulcorner multipar, ypart _pmp_snapped_multi_pos_(ulxy[fpos])); - pair _pa_ ; _pa_ := _ul_ shifted (0,par_hang_after*par_line_height) ; - _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llcorner multipar)) ; - if same_area : - _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llxy[tpos])) ; - fi ; - if obey_multi_par_more and (round(par_line_height)>0) : - par_hang_after := min(0,round(par_hang_after + - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ; - fi ; - (xpart _ul_ + par_hang_indent, ypart lrxy[fpos]) -- - (xpart _ul_ + par_hang_indent, ypart _pa_) -- - (xpart ulcorner multipar, ypart _pa_) - else : - (xpart ulcorner multipar, ypart lrxy[fpos]) - fi -enddef ; + pair par_start_pos ; + pair par_stop_pos ; -vardef _pmp_right_top_hang_ (expr same_area) = + par_start_pos := llxy[fpos] + if par_indent <0: shifted (-par_indent, 0) fi + if par_left_skip<0: shifted (-par_left_skip,0) fi ; - par_hang_after := ra + _pmp_estimated_par_lines_(py-fy) ; + par_stop_pos := lrxy[tpos] + if par_right_skip<0: shifted (par_right_skip,0) fi ; % nasty as the endpos can be shifted by rightskip - if (par_hang_indent<0) and (par_hang_after<0) and obey_multi_par_hang : - pair _ur_ ; _ur_ := (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) ; - pair _pa_ ; _pa_ := _ur_ shifted (0,par_hang_after*par_line_height) ; - _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llcorner multipar)) ; - if same_area : - _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart _pmp_snapped_multi_pos_(ulxy[tpos]))) ; - fi ; - if obey_multi_par_more and (round(par_line_height)>0) : - par_hang_after := min(0,round(par_hang_after + - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ; + if wxy[wpos]>0 : + left_skip := rl + xpart llxy[wpos] - xpart llxy[ppos] ; + right_skip := rw - left_skip - ww ; + else : + left_skip := rl ; + right_skip := rr ; fi ; - (xpart urcorner multipar, ypart _pa_) -- - (xpart _ur_ + par_hang_indent, ypart _pa_) -- - (xpart _ur_ + par_hang_indent, ypart _pmp_snapped_multi_pos_(urxy[fpos])) - else : - (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) - fi -enddef ; -vardef _pmp_x_left_top_hang_ (expr i, t) = - par_hang_after := min(0,ra + _pmp_estimated_multi_par_height_(i,t)) ; - if (par_hang_indent>0) and (par_hang_after<0) : - pair _ul_ ; _ul_ := ulcorner multipar ; - pair _pa_ ; _pa_ := _ul_ shifted (0,par_hang_after*par_line_height) ; - _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ; - if t : - _pa_ := (xpart _pa_,max(ypart _pa_,ypart llxy[tpos])); - fi ; - if abs(ypart _pa_-ypart llxy[tpos])<par_line_height : - _pa_ := (xpart _pa_,ypart llxy[tpos]); - fi ; - if abs(ypart _pa_-ypart llcorner multipar)<par_line_height : - _pa_ := (xpart _pa_,ypart llcorner multipar); - fi ; - (xpart _ul_, ypart _pa_) -- - (xpart _ul_ + par_hang_indent, ypart _pa_) -- - (xpart _ul_ + par_hang_indent, ypart _ul_) - else : - ulcorner multipar - fi -enddef ; + path multipar, multipars[] ; + numeric multiref, multirefs[] ; + numeric multiloc, multilocs[] ; % 1=begin 2=between 3=end -vardef _pmp_x_right_top_hang_ (expr i, t) = - par_hang_after := min(0,ra + _pmp_estimated_multi_par_height_(i,t)) ; - if (par_hang_indent<0) and (par_hang_after<0) : - pair _ur_ ; _ur_ := urcorner multipar ; - pair _pa_ ; _pa_ := _ur_ shifted (0,par_hang_after*par_line_height) ; - _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ; - if t : - _pa_ := (xpart _pa_,max(ypart _pa_,ypart _pmp_snapped_multi_pos_(urxy[tpos]))) ; - fi ; - (xpart _ur_ + par_hang_indent, ypart _ur_) -- - (xpart _ur_ + par_hang_indent, ypart _pa_) -- - (xpart _ur_, ypart _pa_) - else : - urcorner multipar - fi -enddef ; + numeric multi_par_pages ; multi_par_pages := nxy[tpos]-nxy[fpos]+1 ; -vardef _pmp_left_bottom_hang_ (expr same_area) = - pair _ll_, _sa_, _pa_ ; - _sa_ := if same_area : llxy[tpos] else : lrcorner multipar fi ; - if (par_hang_indent>0) and (par_hang_after>0) and obey_multi_par_hang : - _ll_ := (xpart ulcorner multipar, ypart _pmp_snapped_multi_pos_(ulxy[fpos])) ; - _pa_ := _ll_ shifted (0,-par_hang_after*par_line_height) ; - _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ; - if same_area : - _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ; - fi ; - if obey_multi_par_more and (round(par_line_height)>0) : - par_hang_after := max(0,round(par_hang_after - - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ; - fi ; - _pa_ -- - (xpart _pa_ + par_hang_indent,ypart _pa_) -- - (xpart _pa_ + par_hang_indent,ypart _sa_) - else : - (xpart llcorner multipar, ypart _sa_) - fi -enddef ; + % locals .. why can't i move these outside? -vardef _pmp_right_bottom_hang_ (expr same_area) = - pair _lr_, _sa_, _pa_ ; - _sa_ := if same_area : _pmp_snapped_multi_pos_(ulxy[tpos]) else : lrcorner multipar fi ; - if (par_hang_indent<0) and (par_hang_after>0) and obey_multi_par_hang : - _lr_ := (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) ; - _pa_ := _lr_ shifted (0,-par_hang_after*par_line_height) ; - _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ; - if same_area : - _pa_ := (xpart _pa_,max(ypart _pa_,ypart _pmp_snapped_multi_pos_(ulxy[tpos]))) ; - fi ; - if obey_multi_par_more and (round(par_line_height)>0) : - par_hang_after := max(0,round(par_hang_after - - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ; - fi ; - (xpart _pa_ + par_hang_indent,ypart _sa_) -- - (xpart _pa_ + par_hang_indent,ypart _pa_) -- - _pa_ - else : - (xpart lrcorner multipar, ypart _sa_) - fi -enddef ; + vardef _pmp_set_multipar_ (expr i) = + ( (TextAreas[i] leftenlarged -left_skip) rightenlarged (-right_skip + if auto_multi_par_hsize : + rw - bbwidth(TextAreas[i]) fi) ) + enddef ; -vardef _pmp_x_left_bottom_hang_ (expr i, t) = - pair _ll_, _sa_, _pa_ ; - _sa_ := if t : llxy[tpos] else : llcorner multipar fi ; - if (par_hang_indent>0) and (ra>0) : - par_hang_after := max(0,ra - _pmp_estimated_multi_par_height_(i,t)) ; - _ll_ := ulcorner multipar ; - _pa_ := _ll_ shifted (0,-par_hang_after*par_line_height) ; - _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ; - _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ; - % we need to compensate for topskip enlarged areas - if abs(ypart _pa_ - ypart _sa_) > par_line_height : - (xpart _pa_ + par_hang_indent,ypart _sa_) -- - (xpart _pa_ + par_hang_indent,ypart _pa_) -- - fi - _pa_ - else : - (xpart llcorner multipar, ypart _sa_) - fi -enddef ; + vardef _pmp_snapped_multi_pos_ (expr p) = + if snap_multi_par_tops : + if abs(ypart p - ypart ulcorner multipar) < par_line_height : + (xpart p,ypart ulcorner multipar) + else : + p + fi + else : + p + fi + enddef ; -vardef _pmp_x_right_bottom_hang_ (expr i, t) = - pair _lr_, _sa_, _pa_ ; - _sa_ := if t : _pmp_snapped_multi_pos_(ulxy[tpos]) else : llcorner multipar fi ; - if (par_hang_indent<0) and (ra>0) : - par_hang_after := max(0,ra - _pmp_estimated_multi_par_height_(i, t)) ; - _lr_ := urcorner multipar ; - _pa_ := _lr_ shifted (0,-par_hang_after*par_line_height) ; - _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ; - _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ; - % we need to compensate for topskip enlarged areas - _pa_ - if abs(ypart _pa_ - ypart _sa_) > par_line_height : - -- (xpart _pa_ + par_hang_indent,ypart _pa_) - -- (xpart _pa_ + par_hang_indent,ypart _sa_) - fi - else : - (xpart lrcorner multipar, ypart _sa_) - fi -enddef ; + vardef _pmp_estimated_par_lines_ (expr h) = + round(h/par_line_height) + enddef ; -% def _pmp_test_multipar_ = -% multipar := boundingbox multipar ; -% enddef ; + vardef _pmp_top_multi_par_(expr p) = + (round(_pmp_estimated_par_lines_(bbheight(p)*par_line_height))=round(bbheight(p))) + enddef ; - % first loop + vardef _pmp_multi_par_tsc_(expr p) = + if _pmp_top_multi_par_(p) : TopSkipCorrection else : 0 fi + enddef ; - ii := 0 ; nn := NOfTextAreas+1 ; nofmultipars := 0 ; + vardef _pmp_estimated_multi_par_height_ (expr n, t) = + if round(par_line_height)=0 : + 0 + else : + save ok, h ; boolean ok ; + numeric h ; h := 0 ; + ok := false ; + if (nxy[fpos]=RealPageNumber-1) : + for i := 1 upto NOfSavedTextAreas : + if (InsideSavedTextArea(i,par_start_pos)) : + ok := true ; + h := h + _pmp_estimated_par_lines_(ypart ulxy[fpos] - ypart llcorner SavedTextAreas[i]) ; + elseif ok : + h := h + _pmp_estimated_par_lines_(bbheight(SavedTextAreas[i])) ; + fi ; + endfor ; + fi ; + if ok : + for i := 1 upto n-1 : + h := h + _pmp_estimated_par_lines_(bbheight(TextAreas[i])) ; + endfor ; + else : + % already: ok := false ; + for i := 1 upto n-1 : + if (InsideTextArea(i,par_start_pos)) : + ok := true ; + h := h + _pmp_estimated_par_lines_(ypart ulxy[fpos] - ypart llcorner TextAreas[i]) ; + elseif ok : + h := h + _pmp_estimated_par_lines_(bbheight(TextAreas[i])) ; + fi ; + endfor ; + fi ; + h + fi + enddef ; - if enable_multi_par_fallback and - (nxy[fpos]=RealPageNumber) and - (nxy[tpos]=RealPageNumber) and not - (InsideSomeTextArea(lxy[fpos]) and - InsideSomeTextArea(rxy[tpos])) : + vardef _pmp_left_top_hang_ (expr same_area) = - % fallback + par_hang_after := ra + _pmp_estimated_par_lines_(py-fy) ; - % multipar := - % llxy[fpos] -- - % lrxy[tpos] -- - % urxy[tpos] -- - % ulxy[fpos] -- cycle ; - % - % save_multipar (1,1,multipar) ; + if (par_hang_indent>0) and (par_hang_after<0) and obey_multi_par_hang : + pair _ul_ ; _ul_ := (xpart ulcorner multipar, ypart _pmp_snapped_multi_pos_(ulxy[fpos])); + pair _pa_ ; _pa_ := _ul_ shifted (0,par_hang_after*par_line_height) ; + _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llcorner multipar)) ; + if same_area : + _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llxy[tpos])) ; + fi ; + if obey_multi_par_more and (round(par_line_height)>0) : + par_hang_after := min(0,round(par_hang_after + (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ; + fi ; + (xpart _ul_ + par_hang_indent, ypart lrxy[fpos]) -- + (xpart _ul_ + par_hang_indent, ypart _pa_) -- + (xpart ulcorner multipar, ypart _pa_) + else : + (xpart ulcorner multipar, ypart lrxy[fpos]) + fi + enddef ; - % we need to take the boundingbox because there can be - % more lines and we want a proper rectange + vardef _pmp_right_top_hang_ (expr same_area) = - multipar := - ulxy[fpos] -- - urxy[tpos] -- - lrxy[fpos] -- - llxy[tpos] -- cycle ; + par_hang_after := ra + _pmp_estimated_par_lines_(py-fy) ; - save_multipar (1,1,boundingbox(multipar)) ; + if (par_hang_indent<0) and (par_hang_after<0) and obey_multi_par_hang : + pair _ur_ ; _ur_ := (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) ; + pair _pa_ ; _pa_ := _ur_ shifted (0,par_hang_after*par_line_height) ; + _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llcorner multipar)) ; + if same_area : + _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart _pmp_snapped_multi_pos_(ulxy[tpos]))) ; + fi ; + if obey_multi_par_more and (round(par_line_height)>0) : + par_hang_after := min(0,round(par_hang_after + (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ; + fi ; + (xpart urcorner multipar, ypart _pa_) -- + (xpart _ur_ + par_hang_indent, ypart _pa_) -- + (xpart _ur_ + par_hang_indent, ypart _pmp_snapped_multi_pos_(urxy[fpos])) + else : + (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) + fi + enddef ; - else : + vardef _pmp_x_left_top_hang_ (expr i, t) = + par_hang_after := min(0,ra + _pmp_estimated_multi_par_height_(i,t)) ; + if (par_hang_indent>0) and (par_hang_after<0) : + pair _ul_ ; _ul_ := ulcorner multipar ; + pair _pa_ ; _pa_ := _ul_ shifted (0,par_hang_after*par_line_height) ; + _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ; + if t : + _pa_ := (xpart _pa_,max(ypart _pa_,ypart llxy[tpos])); + fi ; + if abs(ypart _pa_-ypart llxy[tpos])<par_line_height : + _pa_ := (xpart _pa_,ypart llxy[tpos]); + fi ; + if abs(ypart _pa_-ypart llcorner multipar)<par_line_height : + _pa_ := (xpart _pa_,ypart llcorner multipar); + fi ; + (xpart _ul_, ypart _pa_) -- + (xpart _ul_ + par_hang_indent, ypart _pa_) -- + (xpart _ul_ + par_hang_indent, ypart _ul_) + else : + ulcorner multipar + fi + enddef ; - % normal + vardef _pmp_x_right_top_hang_ (expr i, t) = + par_hang_after := min(0,ra + _pmp_estimated_multi_par_height_(i,t)) ; + if (par_hang_indent<0) and (par_hang_after<0) : + pair _ur_ ; _ur_ := urcorner multipar ; + pair _pa_ ; _pa_ := _ur_ shifted (0,par_hang_after*par_line_height) ; + _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ; + if t : + _pa_ := (xpart _pa_,max(ypart _pa_,ypart _pmp_snapped_multi_pos_(urxy[tpos]))) ; + fi ; + (xpart _ur_ + par_hang_indent, ypart _ur_) -- + (xpart _ur_ + par_hang_indent, ypart _pa_) -- + (xpart _ur_, ypart _pa_) + else : + urcorner multipar + fi + enddef ; - for i=1 upto NOfTextAreas : + vardef _pmp_left_bottom_hang_ (expr same_area) = + pair _ll_, _sa_, _pa_ ; + _sa_ := if same_area : llxy[tpos] else : lrcorner multipar fi ; + if (par_hang_indent>0) and (par_hang_after>0) and obey_multi_par_hang : + _ll_ := (xpart ulcorner multipar, ypart _pmp_snapped_multi_pos_(ulxy[fpos])) ; + _pa_ := _ll_ shifted (0,-par_hang_after*par_line_height) ; + _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ; + if same_area : + _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ; + fi ; + if obey_multi_par_more and (round(par_line_height)>0) : + par_hang_after := max(0,round(par_hang_after - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ; + fi ; + _pa_ -- + (xpart _pa_ + par_hang_indent,ypart _pa_) -- + (xpart _pa_ + par_hang_indent,ypart _sa_) + else : + (xpart llcorner multipar, ypart _sa_) + fi + enddef ; - TopSkipCorrection := 0 ; + vardef _pmp_right_bottom_hang_ (expr same_area) = + pair _lr_, _sa_, _pa_ ; + _sa_ := if same_area : _pmp_snapped_multi_pos_(ulxy[tpos]) else : lrcorner multipar fi ; + if (par_hang_indent<0) and (par_hang_after>0) and obey_multi_par_hang : + _lr_ := (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) ; + _pa_ := _lr_ shifted (0,-par_hang_after*par_line_height) ; + _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ; + if same_area : + _pa_ := (xpart _pa_,max(ypart _pa_,ypart _pmp_snapped_multi_pos_(ulxy[tpos]))) ; + fi ; + if obey_multi_par_more and (round(par_line_height)>0) : + par_hang_after := max(0,round(par_hang_after - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ; + fi ; + (xpart _pa_ + par_hang_indent,ypart _sa_) -- + (xpart _pa_ + par_hang_indent,ypart _pa_) -- + _pa_ + else : + (xpart lrcorner multipar, ypart _sa_) + fi + enddef ; + + vardef _pmp_x_left_bottom_hang_ (expr i, t) = + pair _ll_, _sa_, _pa_ ; + _sa_ := if t : llxy[tpos] else : llcorner multipar fi ; + if (par_hang_indent>0) and (ra>0) : + par_hang_after := max(0,ra - _pmp_estimated_multi_par_height_(i,t)) ; + _ll_ := ulcorner multipar ; + _pa_ := _ll_ shifted (0,-par_hang_after*par_line_height) ; + _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ; + _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ; + % we need to compensate for topskip enlarged areas + if abs(ypart _pa_ - ypart _sa_) > par_line_height : + (xpart _pa_ + par_hang_indent,ypart _sa_) -- + (xpart _pa_ + par_hang_indent,ypart _pa_) -- + fi + _pa_ + else : + (xpart llcorner multipar, ypart _sa_) + fi + enddef ; + + vardef _pmp_x_right_bottom_hang_ (expr i, t) = + pair _lr_, _sa_, _pa_ ; + _sa_ := if t : _pmp_snapped_multi_pos_(ulxy[tpos]) else : llcorner multipar fi ; + if (par_hang_indent<0) and (ra>0) : + par_hang_after := max(0,ra - _pmp_estimated_multi_par_height_(i, t)) ; + _lr_ := urcorner multipar ; + _pa_ := _lr_ shifted (0,-par_hang_after*par_line_height) ; + _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ; + _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ; + % we need to compensate for topskip enlarged areas + _pa_ + if abs(ypart _pa_ - ypart _sa_) > par_line_height : + -- (xpart _pa_ + par_hang_indent,ypart _pa_) + -- (xpart _pa_ + par_hang_indent,ypart _sa_) + fi + else : + (xpart lrcorner multipar, ypart _sa_) + fi + enddef ; - multipar := _pmp_set_multipar_(i) ; + % def _pmp_test_multipar_ = + % multipar := boundingbox multipar ; + % enddef ; - % watch how we compensate for negative indentation + % first loop - if (nxy[fpos]=RealPageNumber) and (InsideTextArea(i,par_start_pos)) : + ii := 0 ; nn := NOfTextAreas+1 ; nofmultipars := 0 ; - % first one in chain + if enable_multi_par_fallback and (nxy[fpos]=RealPageNumber) + and (nxy[tpos]=RealPageNumber) and not (InsideSomeTextArea(lxy[fpos]) and InsideSomeTextArea(rxy[tpos])) : - ii := i ; + % fallback -% if (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,llxy[tpos])) : - if (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,par_stop_pos)) : + % multipar := + % llxy[fpos] -- + % lrxy[tpos] -- + % urxy[tpos] -- + % ulxy[fpos] -- cycle ; + % + % save_multipar (1,1,multipar) ; - % in same area + % we need to take the boundingbox because there can be + % more lines and we want a proper rectange - nn := i ; + multipar := + ulxy[fpos] -- + urxy[tpos] -- + lrxy[fpos] -- + llxy[tpos] -- cycle ; - if compensate_multi_par_topskip and (round(LineHeight-ph-pd)=0) : + save_multipar (1,1,boundingbox(multipar)) ; - TopSkipCorrection := TopSkip - StrutHeight ; + else : + + % normal + + for i=1 upto NOfTextAreas : - if round(ypart ulxy[fpos] + TopSkipCorrection) = - round(ypart ulcorner TextAreas[i]) : - ulxy[fpos] := ulxy[fpos] shifted (0,TopSkipCorrection) ; - urxy[fpos] := urxy[fpos] shifted (0,TopSkipCorrection) ; - else : TopSkipCorrection := 0 ; - fi ; - fi ; + multipar := _pmp_set_multipar_(i) ; - if ypart llxy[fpos] = ypart llxy[tpos] : + % watch how we compensate for negative indentation - multipar := - llxy[fpos] -- - lrxy[tpos] -- - %urxy[tpos] -- - _pmp_snapped_multi_pos_(urxy[tpos]) -- - %ulxy[fpos] -- - _pmp_snapped_multi_pos_(ulxy[fpos]) -- - cycle ; + if (nxy[fpos]=RealPageNumber) and (InsideTextArea(i,par_start_pos)) : - save_multipar (i,1,multipar) ; + % first one in chain - elseif (ypart llxy[fpos] = ypart ulxy[tpos]) and - (xpart llxy[tpos] < xpart llxy[fpos]) : + ii := i ; - % two loners + if (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,par_stop_pos)) : - multipar := if obey_multi_par_hang : + % in same area - _pmp_right_bottom_hang_(true) -- - _pmp_right_top_hang_(true) -- - _pmp_snapped_multi_pos_(urxy[fpos]) -- - lrxy[fpos] -- + nn := i ; - else : + if compensate_multi_par_topskip and (round(LineHeight-ph-pd)=0) : - llxy[fpos] -- - (xpart urcorner multipar, ypart llxy[fpos]) -- - (xpart urcorner multipar, ypart ulxy[fpos]) -- - _pmp_snapped_multi_pos_(ulxy[fpos]) -- + TopSkipCorrection := TopSkip - StrutHeight ; - fi cycle ; + if round(ypart ulxy[fpos] + TopSkipCorrection) = round(ypart ulcorner TextAreas[i]) : + ulxy[fpos] := ulxy[fpos] shifted (0,TopSkipCorrection) ; + urxy[fpos] := urxy[fpos] shifted (0,TopSkipCorrection) ; + else : + TopSkipCorrection := 0 ; + fi ; - save_multipar (i,1,multipar) ; + fi ; - multipar := _pmp_set_multipar_(i) ; + if ypart llxy[fpos] = ypart llxy[tpos] : - multipar := if obey_multi_par_hang : + multipar := + llxy[fpos] -- + lrxy[tpos] -- + _pmp_snapped_multi_pos_(urxy[tpos]) -- + _pmp_snapped_multi_pos_(ulxy[fpos]) -- + cycle ; - _pmp_left_bottom_hang_(true) -- - llxy[tpos] -- - _pmp_snapped_multi_pos_(ulxy[tpos]) -- - _pmp_left_top_hang_(true) -- + save_multipar (i,1,multipar) ; - else : + elseif (ypart llxy[fpos] = ypart ulxy[tpos]) and (xpart llxy[tpos] < xpart llxy[fpos]) : - (xpart llcorner multipar, ypart llxy[tpos]) -- - llxy[tpos] -- - _pmp_snapped_multi_pos_(ulxy[tpos]) -- - (xpart llcorner multipar, ypart ulxy[tpos]) -- + % two loners - fi cycle ; + multipar := if obey_multi_par_hang : - save_multipar (i,1,multipar) ; + _pmp_right_bottom_hang_(true) -- + _pmp_right_top_hang_(true) -- + _pmp_snapped_multi_pos_(urxy[fpos]) -- + lrxy[fpos] -- - else : + else : - multipar := if obey_multi_par_hang : + llxy[fpos] -- + (xpart urcorner multipar, ypart llxy[fpos]) -- + (xpart urcorner multipar, ypart ulxy[fpos]) -- + _pmp_snapped_multi_pos_(ulxy[fpos]) -- - _pmp_left_bottom_hang_(true) -- - llxy[tpos] -- - %ulxy[tpos] -- - _pmp_snapped_multi_pos_(ulxy[tpos]) -- - _pmp_right_bottom_hang_(true) -- - _pmp_right_top_hang_(true) -- - %urxy[fpos] -- - _pmp_snapped_multi_pos_(urxy[fpos]) -- - lrxy[fpos] -- - _pmp_left_top_hang_(true) -- - - else : - - (xpart llcorner multipar, ypart llxy[tpos]) -- - llxy[tpos] -- - %ulxy[tpos] -- - _pmp_snapped_multi_pos_(ulxy[tpos]) -- - (xpart lrcorner multipar, ypart ulxy[tpos]) -- - (xpart urcorner multipar, ypart urxy[fpos]) -- - %urxy[fpos] -- - _pmp_snapped_multi_pos_(urxy[fpos]) -- - lrxy[fpos] -- - (xpart ulcorner multipar, ypart lrxy[fpos]) -- + fi cycle ; - fi cycle ; + save_multipar (i,1,multipar) ; - save_multipar (i,1,multipar) ; + multipar := _pmp_set_multipar_(i) ; - fi ; + multipar := if obey_multi_par_hang : - else : + _pmp_left_bottom_hang_(true) -- + llxy[tpos] -- + _pmp_snapped_multi_pos_(ulxy[tpos]) -- + _pmp_left_top_hang_(true) -- - multipar := if obey_multi_par_hang : + else : - _pmp_left_bottom_hang_(false) -- - _pmp_right_bottom_hang_(false) -- - _pmp_right_top_hang_(false) -- - %urxy[fpos] -- - _pmp_snapped_multi_pos_(urxy[fpos]) -- - lrxy[fpos] -- - _pmp_left_top_hang_(false) -- + (xpart llcorner multipar, ypart llxy[tpos]) -- + llxy[tpos] -- + _pmp_snapped_multi_pos_(ulxy[tpos]) -- + (xpart llcorner multipar, ypart ulxy[tpos]) -- - else : + fi cycle ; - llcorner multipar -- - lrcorner multipar -- - (xpart urcorner multipar, ypart urxy[fpos]) -- - %urxy[fpos] -- - _pmp_snapped_multi_pos_(urxy[fpos]) -- - lrxy[fpos] -- - (xpart ulcorner multipar, ypart lrxy[fpos]) -- + save_multipar (i,1,multipar) ; - fi cycle ; + else : - save_multipar (i,1,multipar) ; + multipar := if obey_multi_par_hang : - fi ; + _pmp_left_bottom_hang_(true) -- + llxy[tpos] -- + _pmp_snapped_multi_pos_(ulxy[tpos]) -- + _pmp_right_bottom_hang_(true) -- + _pmp_right_top_hang_(true) -- + _pmp_snapped_multi_pos_(urxy[fpos]) -- + lrxy[fpos] -- + _pmp_left_top_hang_(true) -- -% elseif (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,llxy[tpos])) : - elseif (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,par_stop_pos)) : + else : - % last one in chain + (xpart llcorner multipar, ypart llxy[tpos]) -- + llxy[tpos] -- + _pmp_snapped_multi_pos_(ulxy[tpos]) -- + (xpart lrcorner multipar, ypart ulxy[tpos]) -- + (xpart urcorner multipar, ypart urxy[fpos]) -- + _pmp_snapped_multi_pos_(urxy[fpos]) -- + lrxy[fpos] -- + (xpart ulcorner multipar, ypart lrxy[fpos]) -- - nn := i ; + fi cycle ; - if obey_multi_par_hang and obey_multi_par_more : + save_multipar (i,1,multipar) ; - multipar := - _pmp_x_left_top_hang_(i,true) -- - _pmp_x_right_top_hang_(i,true) -- - _pmp_x_right_bottom_hang_(i,true) -- - _pmp_snapped_multi_pos_(ulxy[tpos]) -- - llxy[tpos] -- - _pmp_x_left_bottom_hang_(i,true) -- - cycle ; + fi ; - else : + else : - multipar := - ulcorner multipar -- - urcorner multipar -- - (xpart lrcorner multipar, ypart urxy[tpos]) -- - _pmp_snapped_multi_pos_(ulxy[tpos]) -- - llxy[tpos] -- - (xpart llcorner multipar, ypart llxy[tpos]) -- - cycle ; + multipar := if obey_multi_par_hang : - fi ; + _pmp_left_bottom_hang_(false) -- + _pmp_right_bottom_hang_(false) -- + _pmp_right_top_hang_(false) -- + _pmp_snapped_multi_pos_(urxy[fpos]) -- + lrxy[fpos] -- + _pmp_left_top_hang_(false) -- - save_multipar (i,3,multipar) ; + else : - elseif multi_column_first_page_hack and ((nxy[fpos]=RealPageNumber) and (nxy[tpos]>=RealPageNumber) and (NOfTextColumns>1)) : + llcorner multipar -- + lrcorner multipar -- + (xpart urcorner multipar, ypart urxy[fpos]) -- + _pmp_snapped_multi_pos_(urxy[fpos]) -- + lrxy[fpos] -- + (xpart ulcorner multipar, ypart lrxy[fpos]) -- - save_multipar (i,2,multipar) ; + fi cycle ; - else : - % handled later - fi ; + save_multipar (i,1,multipar) ; - endfor ; + fi ; - % second loop + elseif (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,par_stop_pos)) : - if force_multi_par_chain or (ii > 1) : + % last one in chain - for i=ii+1 upto nn-1 : + nn := i ; - % rest of chain / todo : hang + if obey_multi_par_hang and obey_multi_par_more : -% hm, the second+ column in column sets now gets lost in a NOfTextColumns + multipar := + _pmp_x_left_top_hang_(i,true) -- + _pmp_x_right_top_hang_(i,true) -- + _pmp_x_right_bottom_hang_(i,true) -- + _pmp_snapped_multi_pos_(ulxy[tpos]) -- + llxy[tpos] -- + _pmp_x_left_bottom_hang_(i,true) -- + cycle ; - if (not check_multi_par_chain) or - ((nxy[fpos]<RealPageNumber) and (nxy[tpos]>RealPageNumber)) - : + else : - multipar := _pmp_set_multipar_(i) ; + multipar := + ulcorner multipar -- + urcorner multipar -- + (xpart lrcorner multipar, ypart urxy[tpos]) -- + _pmp_snapped_multi_pos_(ulxy[tpos]) -- + llxy[tpos] -- + (xpart llcorner multipar, ypart llxy[tpos]) -- + cycle ; - if obey_multi_par_hang and obey_multi_par_more : + fi ; - multipar := - _pmp_x_left_top_hang_(i,false) -- - _pmp_x_right_top_hang_(i,false) -- - _pmp_x_right_bottom_hang_(i,false) -- - _pmp_x_left_bottom_hang_(i,false) -- - cycle ; + save_multipar (i,3,multipar) ; - fi ; + elseif multi_column_first_page_hack and ((nxy[fpos]=RealPageNumber) and (nxy[tpos]>=RealPageNumber) and (NOfTextColumns>1)) : - save_multipar(i,2,multipar) ; + save_multipar (i,2,multipar) ; - fi ; + else : + % handled later + fi ; - endfor ; + endfor ; - fi ; + % second loop - % end of normal/fallback + if force_multi_par_chain or (ii > 1) : -fi ; + for i=ii+1 upto nn-1 : - if span_multi_column_pars : - endgroup ; - fi ; + % rest of chain / todo : hang - % potential safeguard: + % hm, the second+ column in column sets now gets lost in a NOfTextColumns - % for i=1 upto nofmultipars : - % if length p <= 4 : - % multipars[i] := boundingbox(multipars[i]) ; - % fi ; - % end ; + if (not check_multi_par_chain) or ((nxy[fpos]<RealPageNumber) and (nxy[tpos]>RealPageNumber)) : - % quick hack for gb: + multipar := _pmp_set_multipar_(i) ; - one_piece_multi_par := (nofmultipars=1) and (pn=tn) ; + if obey_multi_par_hang and obey_multi_par_more : + + multipar := + _pmp_x_left_top_hang_(i,false) -- + _pmp_x_right_top_hang_(i,false) -- + _pmp_x_right_bottom_hang_(i,false) -- + _pmp_x_left_bottom_hang_(i,false) -- + cycle ; + + fi ; + + save_multipar(i,2,multipar) ; + + fi ; + + endfor ; + + fi ; + + % end of normal/fallback + + fi ; + + if span_multi_column_pars : + endgroup ; + fi ; + + % potential safeguard: + + % for i=1 upto nofmultipars : + % if length p <= 4 : + % multipars[i] := boundingbox(multipars[i]) ; + % fi ; + % end ; + + % quick hack for gb: + + one_piece_multi_par := (nofmultipars=1) and (pn=tn) ; enddef ; @@ -974,380 +964,375 @@ numeric boxgriddistance ; boxgriddistance := .5cm ; numeric boxgridshift ; boxgridshift := 0pt ; def draw_box = - draw pxy boxlineoptions withpen pencircle scaled boxlinewidth ; - draw lxy -- rxy boxlineoptions withpen pencircle scaled boxgridwidth ; + draw pxy boxlineoptions withpen pencircle scaled boxlinewidth ; + draw lxy -- rxy boxlineoptions withpen pencircle scaled boxgridwidth ; enddef ; def draw_par = % 1 2 3 11 12 - do_draw_par(pxy) ; do_draw_par(txy) ; do_draw_par(bxy) ; - for i = pxy, txy, bxy : + do_draw_par(pxy) ; do_draw_par(txy) ; do_draw_par(bxy) ; + for i = pxy, txy, bxy : if boxgridtype = 1 : - boxgriddirection := origin ; - draw baseline_grid (i,boxgriddirection,true ) boxgridoptions ; - elseif boxgridtype = 2 : - boxgriddirection := origin ; - draw baseline_grid (i,boxgriddirection,false) boxgridoptions ; - elseif boxgridtype = 3 : - boxgriddirection := origin ; - draw baseline_grid (i,boxgriddirection,true ) boxgridoptions ; - draw baseline_grid (i,boxgriddirection,true ) - shifted (0,ExHeight) boxgridoptions ; - elseif boxgridtype = 4 : - boxgriddirection := origin ; - draw baseline_grid (i,boxgriddirection,true ) - shifted (0,ExHeight/2) boxgridoptions ; - elseif boxgridtype = 11 : - draw graphic_grid(i,boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ; - elseif boxgridtype = 12 : - draw graphic_grid(i,boxgriddistance,boxgriddistance,0,0) ; - fi ; - endfor ; + boxgriddirection := origin ; + draw baseline_grid (i,boxgriddirection,true ) boxgridoptions ; + elseif boxgridtype = 2 : + boxgriddirection := origin ; + draw baseline_grid (i,boxgriddirection,false) boxgridoptions ; + elseif boxgridtype = 3 : + boxgriddirection := origin ; + draw baseline_grid (i,boxgriddirection,true ) boxgridoptions ; + draw baseline_grid (i,boxgriddirection,true ) shifted (0,ExHeight) boxgridoptions ; + elseif boxgridtype = 4 : + boxgriddirection := origin ; + draw baseline_grid (i,boxgriddirection,true ) shifted (0,ExHeight/2) boxgridoptions ; + elseif boxgridtype = 11 : + draw graphic_grid(i,boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ; + elseif boxgridtype = 12 : + draw graphic_grid(i,boxgriddistance,boxgriddistance,0,0) ; + fi ; + endfor ; enddef ; def do_show_par (expr p, r, c) = - if length(p) > 2 : for i=0 upto length(p) : - draw fullcircle scaled r shifted point i of p - withpen pencircle scaled .5pt withcolor c ; - endfor ; fi ; - draw p withpen pencircle scaled .5pt withcolor c ; + if length(p) > 2 : + for i=0 upto length(p) : + draw fullcircle scaled r shifted point i of p withpen pencircle scaled .5pt withcolor c ; + endfor ; + fi ; + draw p withpen pencircle scaled .5pt withcolor c ; enddef ; def show_par = - if length(mxy) > 2 : - draw mxy dashed evenly - withpen pencircle scaled .5pt withcolor .5white ; - fi ; - do_show_par(txy, 4pt, .5green) ; - do_show_par(bxy, 6pt, .5blue ) ; - do_show_par(pxy, 8pt, .5red ) ; - draw pref withpen pencircle scaled 2pt ; + if length(mxy) > 2 : + draw mxy dashed evenly withpen pencircle scaled .5pt withcolor .5white ; + fi ; + do_show_par(txy, 4pt, .5green) ; + do_show_par(bxy, 6pt, .5blue ) ; + do_show_par(pxy, 8pt, .5red ) ; + draw pref withpen pencircle scaled 2pt ; enddef ; def sort_multi_pars = - if nofmultipars>1 : - begingroup ; save _p_, _n_ ; path _p_ ; numeric _n_ ; - for i := 1 upto nofmultipars : - if multilocs[i] = 3 : - _p_ := multipars[nofmultipars] ; - multipars[nofmultipars] := multipars[i] ; - multipars[i] := _p_ ; - _n_ := multirefs[nofmultipars] ; - multirefs[nofmultipars] := multirefs[i] ; - multirefs[i] := _n_ ; - _n_ := multilocs[nofmultipars] ; - multilocs[nofmultipars] := multilocs[i] ; - multilocs[i] := _n_ ; - fi ; - endfor ; - endgroup ; - fi ; + if nofmultipars>1 : + begingroup ; + save _p_, _n_ ; path _p_ ; numeric _n_ ; + for i := 1 upto nofmultipars : + if multilocs[i] = 3 : + _p_ := multipars[nofmultipars] ; + multipars[nofmultipars] := multipars[i] ; + multipars[i] := _p_ ; + _n_ := multirefs[nofmultipars] ; + multirefs[nofmultipars] := multirefs[i] ; + multirefs[i] := _n_ ; + _n_ := multilocs[nofmultipars] ; + multilocs[nofmultipars] := multilocs[i] ; + multilocs[i] := _n_ ; + fi ; + endfor ; + endgroup ; + fi ; enddef ; - def collapse_multi_pars = - if nofmultipars>1 : - begingroup ; save _nofmultipars_ ; numeric _nofmultipars_ ; - _nofmultipars_ := 1 ; - sort_multi_pars ; % block not in order: 1, 3, 2.... - for i:=1 upto nofmultipars-1 : - if (round(xpart(llcorner multipars[i]-llcorner multipars[i+1]))=0) and - (round(xpart(lrcorner multipars[i]-lrcorner multipars[i+1]))=0) : -multilocs[_nofmultipars_] := multilocs[i+1] ; -multirefs[_nofmultipars_] := multirefs[i+1] ; - multipars[_nofmultipars_] := - ulcorner multipars[_nofmultipars_] -- - urcorner multipars[_nofmultipars_] -- - lrcorner multipars[i+1] -- - llcorner multipars[i+1] -- cycle ; - else : - _nofmultipars_ := _nofmultipars_ + 1 ; - multipars[_nofmultipars_] := multipars[i+1] ; - multilocs[_nofmultipars_] := multilocs[i+1] ; - multirefs[_nofmultipars_] := multirefs[i+1] ; - fi ; - endfor ; - nofmultipars := _nofmultipars_ ; - endgroup ; - fi ; + if nofmultipars>1 : + begingroup ; + save _nofmultipars_ ; numeric _nofmultipars_ ; + _nofmultipars_ := 1 ; + sort_multi_pars ; % block not in order: 1, 3, 2.... + for i:=1 upto nofmultipars-1 : + if (round(xpart(llcorner multipars[i]-llcorner multipars[i+1]))=0) and + (round(xpart(lrcorner multipars[i]-lrcorner multipars[i+1]))=0) : + multilocs[_nofmultipars_] := multilocs[i+1] ; + multirefs[_nofmultipars_] := multirefs[i+1] ; + multipars[_nofmultipars_] := + ulcorner multipars[_nofmultipars_] -- + urcorner multipars[_nofmultipars_] -- + lrcorner multipars[i+1] -- + llcorner multipars[i+1] -- cycle ; + else : + _nofmultipars_ := _nofmultipars_ + 1 ; + multipars[_nofmultipars_] := multipars[i+1] ; + multilocs[_nofmultipars_] := multilocs[i+1] ; + multirefs[_nofmultipars_] := multirefs[i+1] ; + fi ; + endfor ; + nofmultipars := _nofmultipars_ ; + endgroup ; + fi ; enddef ; def draw_multi_pars = - for i=1 upto nofmultipars : - do_draw_par(multipars[i]) ; + for i=1 upto nofmultipars : + do_draw_par(multipars[i]) ; if boxgridtype= 1 : - draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) ; - elseif boxgridtype= 2 : - draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,false) ; - elseif boxgridtype= 3 : - draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) ; - draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight) ; - elseif boxgridtype= 4 : - draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight/2) ; - elseif boxgridtype=11 : - draw graphic_grid(multipars[i],boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ; - elseif boxgridtype=12 : - draw graphic_grid(multipars[i],boxgriddistance,boxgriddistance,0,0) ; - fi ; - endfor ; + draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) ; + elseif boxgridtype= 2 : + draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,false) ; + elseif boxgridtype= 3 : + draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) ; + draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight) ; + elseif boxgridtype= 4 : + draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight/2) ; + elseif boxgridtype=11 : + draw graphic_grid(multipars[i],boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ; + elseif boxgridtype=12 : + draw graphic_grid(multipars[i],boxgriddistance,boxgriddistance,0,0) ; + fi ; + endfor ; enddef ; def show_multi_pars = - for i=1 upto nofmultipars : - do_show_par(multipars[i], 6pt, .5blue) ; - endfor ; + for i=1 upto nofmultipars : + do_show_par(multipars[i], 6pt, .5blue) ; + endfor ; enddef ; vardef do_draw_par (expr p) = - if (length p>2) and (bbwidth(p)>1) and (bbheight(p)>1) : - save pp ; path pp ; - if (boxlineradius>0) and (boxlinetype=2) : - pp := p cornered boxlineradius ; - else : - pp := p ; - fi ; - if boxfilltype>0 : - if boxfilloffset>0 : - % temporary hack - begingroup ; interim linejoin := mitered ; - filldraw pp boxfilloptions withpen pencircle scaled (2*boxfilloffset) ; - endgroup ; - else : - fill pp boxfilloptions ; - fi ; - fi ; - if boxlinetype>0 : - draw pp boxlineoptions withpen pencircle scaled boxlinewidth ; + if (length p>2) and (bbwidth(p)>1) and (bbheight(p)>1) : + save pp ; path pp ; + if (boxlineradius>0) and (boxlinetype=2) : + pp := p cornered boxlineradius ; + else : + pp := p ; + fi ; + if boxfilltype>0 : + if boxfilloffset>0 : + % temporary hack + begingroup ; + interim linejoin := mitered ; + filldraw pp boxfilloptions withpen pencircle scaled (2*boxfilloffset) ; + endgroup ; + else : + fill pp boxfilloptions ; + fi ; + fi ; + if boxlinetype>0 : + draw pp boxlineoptions withpen pencircle scaled boxlinewidth ; + fi ; fi ; - fi ; enddef ; vardef baseline_grid (expr pxy, pdir, at_baseline) = - if (par_line_height>0) and (bbheight(pxy)>1) and (bbwidth(pxy)>1) and (boxgridwidth>0) : - save i, grid, bb ; picture grid ; pair start ; path bb ; - def _do_ (expr start) = - % 1 = normal, 2 = with background (i.e. no shine-through) - if boxdashtype = 2 : - draw start -- start shifted (bbwidth(pxy),0) - withpen pencircle scaled boxgridwidth - boxfilloptions ; - fi ; - draw start -- start shifted (bbwidth(pxy),0) - if boxdashtype > 0 : dashed evenly fi - withpen pencircle scaled boxgridwidth - boxgridoptions ; - enddef ; - grid := image - ( %fails with inlinespace - % - if pdir=up : - for i = if at_baseline : par_strut_depth else : 0 fi - step par_line_height - until max(bbheight(pxy),par_line_height) : - _do_ (llcorner pxy shifted (0,+i)) ; - endfor ; - else : - for i = if at_baseline : par_strut_height else : 0 fi - step par_line_height - until bbheight(pxy) : - _do_ (ulcorner pxy shifted (0,-i)) ; - endfor ; - fi ; - ) ; - clip grid to pxy ; - bb := boundingbox grid ; - grid := grid shifted (0,boxgridshift) ; - setbounds grid to bb ; - grid - else : - nullpicture - fi + if (par_line_height>0) and (bbheight(pxy)>1) and (bbwidth(pxy)>1) and (boxgridwidth>0) : + save i, grid, bb ; picture grid ; pair start ; path bb ; + def _do_ (expr start) = + % 1 = normal, 2 = with background (i.e. no shine-through) + if boxdashtype = 2 : + draw + start -- start shifted (bbwidth(pxy),0) + withpen pencircle scaled boxgridwidth + boxfilloptions ; + fi ; + draw start -- start shifted (bbwidth(pxy),0) + if boxdashtype > 0 : + dashed evenly + fi + withpen pencircle scaled boxgridwidth + boxgridoptions ; + enddef ; + grid := image ( %fails with inlinespace + if pdir=up : + for i = if at_baseline : par_strut_depth else : 0 fi step par_line_height until max(bbheight(pxy),par_line_height) : + _do_ (llcorner pxy shifted (0,+i)) ; + endfor ; + else : + for i = if at_baseline : par_strut_height else : 0 fi step par_line_height until bbheight(pxy) : + _do_ (ulcorner pxy shifted (0,-i)) ; + endfor ; + fi ; + ) ; + clip grid to pxy ; + bb := boundingbox grid ; + grid := grid shifted (0,boxgridshift) ; + setbounds grid to bb ; + grid + else : + nullpicture + fi enddef ; vardef graphic_grid (expr pxy, dx, dy, x, y) = - if (bbheight(pxy)>dy) and (bbwidth(pxy)>dx) and (boxgridwidth>0) : - save grid ; picture grid ; - grid := image - ( for i = xpart llcorner pxy step dx until xpart lrcorner pxy : - draw (i,ypart llcorner pxy) -- (i,ypart ulcorner pxy) - withpen pencircle scaled boxgridwidth ; - endfor ; - for i = ypart llcorner pxy step dy until ypart ulcorner pxy : - draw (xpart llcorner pxy,i) -- (xpart lrcorner pxy,i) - withpen pencircle scaled boxgridwidth ; - endfor ) shifted (x,y) ; - clip grid to pxy ; - grid - else : - nullpicture - fi + if (bbheight(pxy)>dy) and (bbwidth(pxy)>dx) and (boxgridwidth>0) : + save grid ; picture grid ; + grid := image ( + for i = xpart llcorner pxy step dx until xpart lrcorner pxy : + draw (i,ypart llcorner pxy) -- (i,ypart ulcorner pxy) withpen pencircle scaled boxgridwidth ; + endfor ; + for i = ypart llcorner pxy step dy until ypart ulcorner pxy : + draw (xpart llcorner pxy,i) -- (xpart lrcorner pxy,i) withpen pencircle scaled boxgridwidth ; + endfor + ) shifted (x,y) ; + clip grid to pxy ; + grid + else : + nullpicture + fi enddef ; def anchor_box (expr n,x,y,w,h,d) = - currentpicture := currentpicture shifted (-x,-y) ; + currentpicture := currentpicture shifted (-x,-y) ; enddef ; let draw_area = draw_box ; let anchor_area = anchor_box ; let anchor_par = anchor_box ; - numeric sync_n[], sync_p[][], sync_w[][], sync_h[][], sync_d[][], sync_t[][] ; pair sync_xy[][] ; color sync_c[][] ; def ResetSyncTasks = - path SyncPaths[] ; numeric SyncTasks[], NOfSyncPaths, CurrentSyncClass ; - NOfSyncPaths := CurrentSyncClass := 0 ; - if unknown SyncLeftOffset : numeric SyncLeftOffset ; SyncLeftOffset := 0 ; fi ; - if unknown SyncWidth : numeric SyncWidth ; SyncWidth := 0 ; fi ; - if unknown SyncThreshold : numeric SyncThreshold ; SyncThreshold := LineHeight ; fi ; - if unknown SyncColor : color SyncColor ; SyncColor := .5white ; fi ; - if (SyncLeftOffset = 0) and (SyncWidth = 0) : - SyncWidth := if known TextWidth : TextWidth else : -1cm fi ; - fi ; + path SyncPaths[] ; numeric SyncTasks[], NOfSyncPaths, CurrentSyncClass ; + NOfSyncPaths := CurrentSyncClass := 0 ; + if unknown SyncLeftOffset : numeric SyncLeftOffset ; SyncLeftOffset := 0 ; fi ; + if unknown SyncWidth : numeric SyncWidth ; SyncWidth := 0 ; fi ; + if unknown SyncThreshold : numeric SyncThreshold ; SyncThreshold := LineHeight ; fi ; + if unknown SyncColor : color SyncColor ; SyncColor := .5white ; fi ; + if (SyncLeftOffset = 0) and (SyncWidth = 0) : + SyncWidth := if known TextWidth : TextWidth else : -1cm fi ; + fi ; enddef ; ResetSyncTasks ; vardef SyncBox(expr n, i, leftoffset, width, topoffset, bottomoffset) = - save o ; pair o ; o := (xpart llcorner PlainTextArea,ypart sync_xy[n][i]) ; - o shifted (leftoffset,sync_h[n][i]+topoffset) -- - o shifted (width+leftoffset,sync_h[n][i]+topoffset) -- - o shifted (width+leftoffset,bottomoffset) -- - o shifted (leftoffset,bottomoffset) -- cycle + save o ; pair o ; o := (xpart llcorner PlainTextArea,ypart sync_xy[n][i]) ; + o shifted (leftoffset,sync_h[n][i]+topoffset) -- + o shifted (width+leftoffset,sync_h[n][i]+topoffset) -- + o shifted (width+leftoffset,bottomoffset) -- + o shifted (leftoffset,bottomoffset) -- cycle enddef ; def SetSyncColor(expr n, i, c) = - sync_c[n][i] := c ; + sync_c[n][i] := c ; enddef ; def SetSyncThreshold(expr n, i, th) = - sync_th[n][i] := th ; + sync_th[n][i] := th ; enddef ; vardef TheSyncColor(expr n, i) = - if known sync_c[n][i] : sync_c[n][i] else : SyncColor fi + if known sync_c[n][i] : sync_c[n][i] else : SyncColor fi enddef ; vardef TheSyncThreshold(expr n, i) = - if known sync_th[n][i] : sync_th[n][i] else : SyncThreshold fi + if known sync_th[n][i] : sync_th[n][i] else : SyncThreshold fi enddef ; vardef PrepareSyncTasks(expr n, collapse, extendtop, prestartnext) = - ResetSyncTasks ; - if known sync_n[n] : - CurrentSyncClass := n ; - save ok, l, d ; boolean ok ; ok := false ; NOfSyncPaths := l := 0 ; - for i=1 upto sync_n[n] : - if RealPageNumber > sync_p[n][i] : - l := i ; - elseif RealPageNumber = sync_p[n][i] : - NOfSyncPaths := NOfSyncPaths + 1 ; - if not ok : - if i>1 : - if sync_t[n][i-1] = sync_t[n][i] : - SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ; - SyncTasks[NOfSyncPaths] := i ; - else : - SyncPaths[NOfSyncPaths] := SyncBox(n, i-1, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ; - SyncTasks[NOfSyncPaths] := i-1 ; - NOfSyncPaths := NOfSyncPaths + 1 ; - SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ; - SyncTasks[NOfSyncPaths] := i ; + ResetSyncTasks ; + if known sync_n[n] : + CurrentSyncClass := n ; + save ok, l, d ; boolean ok ; ok := false ; NOfSyncPaths := l := 0 ; + for i=1 upto sync_n[n] : + if RealPageNumber > sync_p[n][i] : + l := i ; + elseif RealPageNumber = sync_p[n][i] : + NOfSyncPaths := NOfSyncPaths + 1 ; + if not ok : + if i>1 : + if sync_t[n][i-1] = sync_t[n][i] : + SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ; + SyncTasks[NOfSyncPaths] := i ; + else : + SyncPaths[NOfSyncPaths] := SyncBox(n, i-1, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ; + SyncTasks[NOfSyncPaths] := i-1 ; + NOfSyncPaths := NOfSyncPaths + 1 ; + SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ; + SyncTasks[NOfSyncPaths] := i ; + fi ; + else : + SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ; + SyncTasks[NOfSyncPaths] := i ; + fi ; + else : + SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ; + SyncTasks[NOfSyncPaths] := i ; + fi ; + ok := true ; fi ; - else : - SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ; - SyncTasks[NOfSyncPaths] := i ; - fi ; - else : - SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ; - SyncTasks[NOfSyncPaths] := i ; + endfor ; + if (NOfSyncPaths = 0) and (l > 0) : + NOfSyncPaths := 1 ; + SyncPaths[NOfSyncPaths] := SyncBox(n, l, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ; + SyncTasks[NOfSyncPaths] := l ; fi ; - ok := true ; - fi ; - endfor ; - if (NOfSyncPaths = 0) and (l > 0) : - NOfSyncPaths := 1 ; - SyncPaths[NOfSyncPaths] := SyncBox(n, l, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ; - SyncTasks[NOfSyncPaths] := l ; - fi ; - if NOfSyncPaths > 0 : - for i = 1 upto NOfSyncPaths-1 : - SyncPaths[i] := topboundary SyncPaths[i] -- reverse topboundary SyncPaths[i+1] -- cycle ; - endfor ; - if unknown SyncThresholdMethod : - numeric SyncThresholdMethod ; SyncThresholdMethod := 2 ; - fi ; - if extendtop : - if SyncThresholdMethod = 1 : - if NOfSyncPaths>1 : - d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[2]]) ; - if (SyncTasks[2]>1) and (d > 0pt) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[2]])) and (sync_p[n][SyncTasks[2]] = RealPageNumber) : - SyncPaths[2] := SyncPaths[2] topenlarged PaperHeight ; + if NOfSyncPaths > 0 : + for i = 1 upto NOfSyncPaths-1 : + SyncPaths[i] := topboundary SyncPaths[i] -- reverse topboundary SyncPaths[i+1] -- cycle ; + endfor ; + if unknown SyncThresholdMethod : + numeric SyncThresholdMethod ; SyncThresholdMethod := 2 ; fi ; - fi ; - else : - for i = 1 upto NOfSyncPaths : - d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[i]]) ; - if (d > 0) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[i]] = RealPageNumber) : - SyncPaths[i] := SyncPaths[i] topenlarged PaperHeight ; + if extendtop : + if SyncThresholdMethod = 1 : + if NOfSyncPaths>1 : + d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[2]]) ; + if (SyncTasks[2]>1) and (d > 0pt) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[2]])) and (sync_p[n][SyncTasks[2]] = RealPageNumber) : + SyncPaths[2] := SyncPaths[2] topenlarged PaperHeight ; + fi ; + fi ; + else : + for i = 1 upto NOfSyncPaths : + d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[i]]) ; + if (d > 0) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[i]] = RealPageNumber) : + SyncPaths[i] := SyncPaths[i] topenlarged PaperHeight ; + fi ; + endfor ; + fi ; fi ; - endfor ; - fi ; - fi ; - if prestartnext : - if NOfSyncPaths>1 : - if SyncTasks[NOfSyncPaths] < sync_n[n] : % there is a next one - d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[NOfSyncPaths]+1]) ; - if (d > 0) and (d <= TheSyncThreshold(n, sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[NOfSyncPaths]+1] = RealPageNumber+1) : - SyncPaths[NOfSyncPaths+1] := - (xpart ulcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) -- - (xpart urcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) -- - lrcorner SyncPaths[NOfSyncPaths] -- - llcorner SyncPaths[NOfSyncPaths] -- cycle ; - SyncTasks[NOfSyncPaths+1] := SyncTasks[NOfSyncPaths]+1 ; - NOfSyncPaths := NOfSyncPaths + 1 ; + if prestartnext : + if NOfSyncPaths>1 : + if SyncTasks[NOfSyncPaths] < sync_n[n] : % there is a next one + d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[NOfSyncPaths]+1]) ; + if (d > 0) and (d <= TheSyncThreshold(n, sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[NOfSyncPaths]+1] = RealPageNumber+1) : + SyncPaths[NOfSyncPaths+1] := + (xpart ulcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) -- + (xpart urcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) -- + lrcorner SyncPaths[NOfSyncPaths] -- + llcorner SyncPaths[NOfSyncPaths] -- cycle ; + SyncTasks[NOfSyncPaths+1] := SyncTasks[NOfSyncPaths]+1 ; + NOfSyncPaths := NOfSyncPaths + 1 ; + fi ; + fi ; + fi ; + else : + if NOfSyncPaths>1 : + d := ypart (sync_xy[n][SyncTasks[NOfSyncPaths]] - llcorner PlainTextArea) ; + if (d < TheSyncThreshold(n, SyncTasks[NOfSyncPaths])) : + NOfSyncPaths := NOfSyncPaths - 1 ; + SyncPaths[NOfSyncPaths] := SyncPaths[NOfSyncPaths] bottomenlarged PaperHeight ; + fi ; + fi ; + fi ; + if (NOfSyncPaths>1) and collapse : + save j ; numeric j ; j := 1 ; + for i = 2 upto NOfSyncPaths : + if sync_t[n][SyncTasks[i]] = sync_t[n][SyncTasks[j]] : + SyncPaths[j] := boundingbox image (draw SyncPaths[i] ; draw SyncPaths[j] ; ) ; + SyncTasks[j] := SyncTasks[i] ; + else : + j := j + 1 ; + SyncPaths[j] := SyncPaths[i] ; + SyncTasks[j] := SyncTasks[i] ; + fi ; + endfor ; + NOfSyncPaths := j ; fi ; - fi ; - fi ; - else : - if NOfSyncPaths>1 : - d := ypart (sync_xy[n][SyncTasks[NOfSyncPaths]] - llcorner PlainTextArea) ; - if (d < TheSyncThreshold(n, SyncTasks[NOfSyncPaths])) : - NOfSyncPaths := NOfSyncPaths - 1 ; - SyncPaths[NOfSyncPaths] := SyncPaths[NOfSyncPaths] bottomenlarged PaperHeight ; - fi ; fi ; - fi ; - if (NOfSyncPaths>1) and collapse : - save j ; numeric j ; j := 1 ; - for i = 2 upto NOfSyncPaths : - if sync_t[n][SyncTasks[i]] = sync_t[n][SyncTasks[j]] : - SyncPaths[j] := boundingbox image (draw SyncPaths[i] ; draw SyncPaths[j] ; ) ; - SyncTasks[j] := SyncTasks[i] ; - else : - j := j + 1 ; - SyncPaths[j] := SyncPaths[i] ; - SyncTasks[j] := SyncTasks[i] ; - fi ; - endfor ; - NOfSyncPaths := j ; - fi ; fi ; - fi ; enddef ; def SyncTask(expr n) = - if known SyncTasks[n] : SyncTasks[n] else : 0 fi + if known SyncTasks[n] : SyncTasks[n] else : 0 fi enddef ; def FlushSyncTasks = - for i = 1 upto NOfSyncPaths : - ProcessSyncTask(SyncPaths[i], TheSyncColor(CurrentSyncClass,sync_t[CurrentSyncClass][SyncTasks[i]])) ; - endfor ; + for i = 1 upto NOfSyncPaths : + ProcessSyncTask(SyncPaths[i], TheSyncColor(CurrentSyncClass,sync_t[CurrentSyncClass][SyncTasks[i]])) ; + endfor ; enddef ; def ProcessSyncTask(expr p, c) = - fill p withcolor c ; + fill p withcolor c ; enddef ; endinput ; |