diff options
Diffstat (limited to 'Master/texmf-dist/metapost/context/base/mp-mlib.mp')
| -rw-r--r-- | Master/texmf-dist/metapost/context/base/mp-mlib.mp | 425 |
1 files changed, 338 insertions, 87 deletions
diff --git a/Master/texmf-dist/metapost/context/base/mp-mlib.mp b/Master/texmf-dist/metapost/context/base/mp-mlib.mp index bf2372ca390..6c7115cb7d4 100644 --- a/Master/texmf-dist/metapost/context/base/mp-mlib.mp +++ b/Master/texmf-dist/metapost/context/base/mp-mlib.mp @@ -2,7 +2,7 @@ %D [ file=mp-mlib.mp, %D version=2008.03.21, %D title=\CONTEXT\ \METAPOST\ graphics, -%D subtitle=specials, +%D subtitle=plugins, %D author=Hans Hagen, %D date=\currentdate, %D copyright={PRAGMA / Hans Hagen \& Ton Otten}] @@ -16,6 +16,66 @@ if known context_mlib : endinput ; fi ; boolean context_mlib ; context_mlib := true ; +%D Color and transparency + +newinternal normaltransparent ; normaltransparent := 1 ; +newinternal multiplytransparent ; multiplytransparent := 2 ; +newinternal screentransparent ; screentransparent := 3 ; +newinternal overlaytransparent ; overlaytransparent := 4 ; +newinternal softlighttransparent ; softlighttransparent := 5 ; +newinternal hardlighttransparent ; hardlighttransparent := 6 ; +newinternal colordodgetransparent ; colordodgetransparent := 7 ; +newinternal colorburntransparent ; colorburntransparent := 8 ; +newinternal darkentransparent ; darkentransparent := 9 ; +newinternal lightentransparent ; lightentransparent := 10 ; +newinternal differencetransparent ; differencetransparent := 11 ; +newinternal exclusiontransparent ; exclusiontransparent := 12 ; + +vardef transparency_alternative_to_number(expr name) = + if string name : + if expandafter known scantokens(name & "transparent") : + scantokens(name & "transparent") + else : + 0 + fi + elseif name < 13 : + name + else : + 0 + fi +enddef ; + +def spotcolor(expr n, v) = + 1 + withprescript "sp_name=" & n + withprescript "sp_value=" & v +enddef ; + +def multitonecolor(expr name, fractions, components, value) = + 1 + withprescript "sp_name=" & name + withprescript "sp_fractions=" & decimal fractions + withprescript "sp_components=" & components + withprescript "sp_value=" & value +enddef ; + +def transparent(expr alternative, transparency)(text c) = + c + withprescript "tr_alternative=" & decimal transparency_alternative_to_number(alternative) + withprescript "tr_transparency=" & decimal transparency +enddef ; + +def withtransparency(expr alternative, transparency) = + withprescript "tr_alternative=" & decimal transparency_alternative_to_number(alternative) + withprescript "tr_transparency=" & decimal transparency +enddef ; + +def cmyk(expr c, m, y, k) = + (c,m,y,k) +enddef ; + +% Texts + numeric _tt_w_[], _tt_h_[], _tt_d_[] ; numeric _tt_n_ ; _tt_n_ := 0 ; picture _tt_p_ ; _tt_p_ := nullpicture ; @@ -26,34 +86,53 @@ def resettextexts = _tt_p_ := nullpicture ; enddef ; -extra_endfig := ";addto currentpicture also _tt_p_; " & extra_endfig; % was draw _tt_p_ +def flushtextexts = + addto currentpicture also _tt_p_ +enddef ; + +extra_endfig := "flushtextexts;" & extra_endfig; extra_beginfig := extra_beginfig & "resettextexts;"; +% We collect and flush them all, as we can also have temporary textexts +% that gets never really flushed but are used for calculations. So, we +% flush twice: once in location in order to pick up e.g. color properties, +% and once at the end because we need to flush missing ones. + vardef rawtextext(expr str) = if str = "" : nullpicture elseif _trial_run_ : + _tt_n_ := _tt_n_ + 1 ; + addto _tt_p_ doublepath unitsquare + withprescript "tx_number=" & decimal _tt_n_ + withprescript "tx_stage=extra" + withpostscript str ; image ( - _tt_n_ := _tt_n_ + 1 ; - _tt_p_ := image ( - addto currentpicture also _tt_p_ ; - addto currentpicture doublepath unitsquare withprescript "tf" withpostscript decimal _tt_n_ & ":" & str ; - ) ; - addto currentpicture doublepath unitsquare withpen pencircle scaled 0 ; + addto currentpicture doublepath unitsquare + withprescript "tx_number=" & decimal _tt_n_ + withprescript "tx_stage=trial" + withpostscript str ) else : - image ( - _tt_n_ := _tt_n_ + 1 ; - addto currentpicture doublepath unitsquare - xscaled _tt_w_[_tt_n_] - yscaled (_tt_h_[_tt_n_] + _tt_d_[_tt_n_]) - withprescript "ts" - withpostscript decimal _tt_n_ & ":" & str ; - ) shifted (0,-_tt_d_[_tt_n_]) + _tt_n_ := _tt_n_ + 1 ; + if known _tt_d_[_tt_n_] : + image ( + addto currentpicture doublepath unitsquare + xscaled _tt_w_[_tt_n_] + yscaled (_tt_h_[_tt_n_] + _tt_d_[_tt_n_]) + withprescript "tx_number=" & decimal _tt_n_ + withprescript "tx_stage=final" + ; % withpostscript str ; + ) shifted (0,-_tt_d_[_tt_n_]) + else : + image ( + addto currentpicture doublepath unitsquare ; + ) + fi fi enddef ; -% not ok yet +% More text pair laboff.d, laboff.dlft, laboff.drt ; % new positional suffixes pair laboff.origin, laboff.raw ; % graph mess @@ -89,44 +168,44 @@ pair laboff.t_r ; laboff.t_r = laboff.urt ; pair laboff.b_l ; laboff.b_l = laboff.llft ; pair laboff.b_r ; laboff.b_r = laboff.lrt ; -labxf.l ; labxf.l = labxf.lft ; -labxf.r ; labxf.r = labxf.rt ; -labxf.b ; labxf.b = labxf.bot ; -labxf.t ; labxf.t = labxf.top ; -labxf.l_t ; labxf.l_t = labxf.ulft ; -labxf.r_t ; labxf.r_t = labxf.urt ; -labxf.l_b ; labxf.l_b = labxf.llft ; -labxf.r_b ; labxf.r_b = labxf.lrt ; -labxf.t_l ; labxf.t_l = labxf.ulft ; -labxf.t_r ; labxf.t_r = labxf.urt ; -labxf.b_l ; labxf.b_l = labxf.llft ; -labxf.b_r ; labxf.b_r = labxf.lrt ; - -labyf.l ; labyf.l = labyf.lft ; -labyf.r ; labyf.r = labyf.rt ; -labyf.b ; labyf.b = labyf.bot ; -labyf.t ; labyf.t = labyf.top ; -labyf.l_t ; labyf.l_t = labyf.ulft ; -labyf.r_t ; labyf.r_t = labyf.urt ; -labyf.l_b ; labyf.l_b = labyf.llft ; -labyf.r_b ; labyf.r_b = labyf.lrt ; -labyf.t_l ; labyf.t_l = labyf.ulft ; -labyf.t_r ; labyf.t_r = labyf.urt ; -labyf.b_l ; labyf.b_l = labyf.llft ; -labyf.b_r ; labyf.b_r = labyf.lrt ; - -labtype.l ; labtype.l = labtype.lft ; -labtype.r ; labtype.r = labtype.rt ; -labtype.b ; labtype.b = labtype.bot ; -labtype.t ; labtype.t = labtype.top ; -labtype.l_t ; labtype.l_t = labtype.ulft ; -labtype.r_t ; labtype.r_t = labtype.urt ; -labtype.l_b ; labtype.l_b = labtype.llft ; -labtype.r_b ; labtype.r_b = labtype.lrt ; -labtype.t_l ; labtype.t_l = labtype.ulft ; -labtype.t_r ; labtype.t_r = labtype.urt ; -labtype.b_l ; labtype.b_l = labtype.llft ; -labtype.b_r ; labtype.b_r = labtype.lrt ; +numeric labxf.l ; labxf.l = labxf.lft ; +numeric labxf.r ; labxf.r = labxf.rt ; +numeric labxf.b ; labxf.b = labxf.bot ; +numeric labxf.t ; labxf.t = labxf.top ; +numeric labxf.l_t ; labxf.l_t = labxf.ulft ; +numeric labxf.r_t ; labxf.r_t = labxf.urt ; +numeric labxf.l_b ; labxf.l_b = labxf.llft ; +numeric labxf.r_b ; labxf.r_b = labxf.lrt ; +numeric labxf.t_l ; labxf.t_l = labxf.ulft ; +numeric labxf.t_r ; labxf.t_r = labxf.urt ; +numeric labxf.b_l ; labxf.b_l = labxf.llft ; +numeric labxf.b_r ; labxf.b_r = labxf.lrt ; + +numeric labyf.l ; labyf.l = labyf.lft ; +numeric labyf.r ; labyf.r = labyf.rt ; +numeric labyf.b ; labyf.b = labyf.bot ; +numeric labyf.t ; labyf.t = labyf.top ; +numeric labyf.l_t ; labyf.l_t = labyf.ulft ; +numeric labyf.r_t ; labyf.r_t = labyf.urt ; +numeric labyf.l_b ; labyf.l_b = labyf.llft ; +numeric labyf.r_b ; labyf.r_b = labyf.lrt ; +numeric labyf.t_l ; labyf.t_l = labyf.ulft ; +numeric labyf.t_r ; labyf.t_r = labyf.urt ; +numeric labyf.b_l ; labyf.b_l = labyf.llft ; +numeric labyf.b_r ; labyf.b_r = labyf.lrt ; + +numeric labtype.l ; labtype.l = labtype.lft ; +numeric labtype.r ; labtype.r = labtype.rt ; +numeric labtype.b ; labtype.b = labtype.bot ; +numeric labtype.t ; labtype.t = labtype.top ; +numeric labtype.l_t ; labtype.l_t = labtype.ulft ; +numeric labtype.r_t ; labtype.r_t = labtype.urt ; +numeric labtype.l_b ; labtype.l_b = labtype.llft ; +numeric labtype.r_b ; labtype.r_b = labtype.lrt ; +numeric labtype.t_l ; labtype.t_l = labtype.ulft ; +numeric labtype.t_r ; labtype.t_r = labtype.urt ; +numeric labtype.b_l ; labtype.b_l = labtype.llft ; +numeric labtype.b_r ; labtype.b_r = labtype.lrt ; vardef thetextext@#(expr p,z) = % adapted copy of thelabel@ if string p : @@ -175,6 +254,34 @@ primarydef str infont name = % very naughty ! fi enddef ; +% Shades + +newinternal shadefactor ; shadefactor := 1 ; +pair shadeoffset ; shadeoffset := origin ; +boolean trace_shades ; trace_shades := false ; + +def set_linear_vector (suffix a,b)(expr p,n) = + if (n=1) : a := llcorner p ; b := urcorner p ; + elseif (n=2) : a := lrcorner p ; b := ulcorner p ; + elseif (n=3) : a := urcorner p ; b := llcorner p ; + elseif (n=4) : a := ulcorner p ; b := lrcorner p ; + elseif (n=5) : a := .5[ulcorner p,llcorner p] ; b := .5[urcorner p,lrcorner p] ; + elseif (n=6) : a := .5[llcorner p,lrcorner p] ; b := .5[ulcorner p,urcorner p] ; + elseif (n=7) : a := .5[lrcorner p,urcorner p] ; b := .5[llcorner p,ulcorner p] ; + elseif (n=8) : a := .5[urcorner p,ulcorner p] ; b := .5[lrcorner p,llcorner p] ; + else : a := .5[ulcorner p,llcorner p] ; b := .5[urcorner p,lrcorner p] ; + fi ; +enddef ; + +def set_circular_vector (suffix ab, r)(expr p,n) = + if (n=1) : ab := llcorner p ; + elseif (n=2) : ab := lrcorner p ; + elseif (n=3) : ab := urcorner p ; + elseif (n=4) : ab := ulcorner p ; + else : ab := center p ; r := .5r ; + fi ; +enddef ; + def circular_shade (expr p, n, ca, cb) = begingroup ; save ab, r ; pair ab ; numeric r ; @@ -186,6 +293,7 @@ def circular_shade (expr p, n, ca, cb) = fi ; endgroup ; enddef ; + def linear_shade (expr p, n, ca, cb) = begingroup ; save a, b, sh ; pair a, b ; @@ -196,46 +304,128 @@ def linear_shade (expr p, n, ca, cb) = fi ; endgroup ; enddef ; + def withcircularshade (expr a, b, ra, rb, ca, cb) = - withprescript - "cs" - withpostscript - "0 1 " & decimal shadefactor & " " & - colordecimals ca & " " & ddecimal (a shifted shadeoffset) & " " & decimal ra & " " & - colordecimals cb & " " & ddecimal (b shifted shadeoffset) & " " & decimal rb + withprescript "sh_type=circular" + withprescript "sh_domain=0 1" + withprescript "sh_factor=" & decimal shadefactor + withprescript "sh_color_a=" & colordecimals ca + withprescript "sh_color_b=" & colordecimals cb + withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset) + withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset) + withprescript "sh_radius_a=" & decimal ra + withprescript "sh_radius_b=" & decimal rb enddef ; + def withlinearshade (expr a, b, ca, cb) = - withprescript - "ls" - withpostscript - "0 1 " & decimal shadefactor & " " & - colordecimals ca & " " & ddecimal (a shifted shadeoffset) & " " & - colordecimals cb & " " & ddecimal (b shifted shadeoffset) -enddef ; -string _defined_cs_pre_[], _defined_cs_post_[] ; numeric _defined_cs_ ; _defined_cs_:= 0 ; + withprescript "sh_type=linear" + withprescript "sh_domain=0 1" + withprescript "sh_factor=" & decimal shadefactor + withprescript "sh_color_a=" & colordecimals ca + withprescript "sh_color_b=" & colordecimals cb + withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset) + withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset) +enddef ; + +string _defined_cs_pre_[] ; numeric _defined_cs_ ; _defined_cs_:= 0 ; +string prescript_separator ; prescript_separator := char(13) ; + vardef define_circular_shade (expr a, b, ra, rb, ca, cb) = _defined_cs_ := _defined_cs_ + 1 ; - _defined_cs_pre_ [_defined_cs_] := "cs" ; - _defined_cs_post_[_defined_cs_] := "0 1 " & decimal shadefactor & " " & - colordecimals ca & " " & ddecimal (a shifted shadeoffset) & " " & decimal ra & " " & - colordecimals cb & " " & ddecimal (b shifted shadeoffset) & " " & decimal rb ; + _defined_cs_pre_ [_defined_cs_] := "sh_type=circular" + & prescript_separator & "sh_domain=0 1" + & prescript_separator & "sh_factor=" & decimal shadefactor + & prescript_separator & "sh_color_a=" & colordecimals ca + & prescript_separator & "sh_color_b=" & colordecimals cb + & prescript_separator & "sh_center_a=" & ddecimal (a shifted shadeoffset) + & prescript_separator & "sh_center_b=" & ddecimal (b shifted shadeoffset) + & prescript_separator & "sh_radius_a=" & decimal ra + & prescript_separator & "sh_radius_b=" & decimal rb + ; _defined_cs_ enddef ; + vardef define_linear_shade (expr a, b, ca, cb) = _defined_cs_ := _defined_cs_ + 1 ; - _defined_cs_pre_ [_defined_cs_] := "ls" ; - _defined_cs_post_[_defined_cs_] := "0 1 " & decimal shadefactor & " " & - colordecimals ca & " " & ddecimal (a shifted shadeoffset) & " " & - colordecimals cb & " " & ddecimal (b shifted shadeoffset) ; + _defined_cs_pre_ [_defined_cs_] := "sh_type=linear" + & prescript_separator & "sh_domain=0 1" + & prescript_separator & "sh_factor=" & decimal shadefactor + & prescript_separator & "sh_color_a=" & colordecimals ca + & prescript_separator & "sh_color_b=" & colordecimals cb + & prescript_separator & "sh_center_a=" & ddecimal (a shifted shadeoffset) + & prescript_separator & "sh_center_b=" & ddecimal (b shifted shadeoffset) + ; _defined_cs_ enddef ; + primarydef p withshade sc = - p withprescript _defined_cs_pre_[sc] withpostscript _defined_cs_post_[sc] + p withprescript _defined_cs_pre_[sc] +enddef ; + +% vardef predefined_linear_shade (expr p, n, ca, cb) = +% save a, b, sh ; pair a, b ; +% set_linear_vector(a,b)(p,n) ; +% define_linear_shade (a,b,ca,cb) +% enddef ; +% +% vardef predefined_circular_shade (expr p, n, ca, cb) = +% save ab, r ; pair ab ; numeric r ; +% r := (xpart lrcorner p - xpart llcorner p) ++ (ypart urcorner p - ypart lrcorner p) ; +% set_circular_vector(ab,r)(p,n) ; +% define_circular_shade(ab,ab,0,r,ca,cb) +% enddef ; + +% NEW EXPERIMENTAL CODE + +def withlinearshading (expr a, b) = + withprescript "sh_type=linear" + withprescript "sh_domain=0 1" + withprescript "sh_factor=" & decimal shadefactor + withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset) + withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset) +enddef ; + +def withcircularshading (expr a, b, ra, rb) = + withprescript "sh_type=circular" + withprescript "sh_domain=0 1" + withprescript "sh_factor=" & decimal shadefactor + withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset) + withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset) + withprescript "sh_radius_a=" & decimal ra + withprescript "sh_radius_b=" & decimal rb +enddef ; + +def withfromshadecolor expr t = + withprescript "sh_color=into" + withprescript "sh_color_a=" & colordecimals t +enddef ; + +def withtoshadecolor expr t = + withprescript "sh_color=into" + withprescript "sh_color_b=" & colordecimals t +enddef ; + +def withshading (expr how)(text rest) = + if how = "linear" : + withlinearshading(rest) + elseif how = "circular" : + withcircularshading(rest) + else : + % nothing + fi enddef ; -def shadecolor(expr sc) = % obsolete - 1 withprescript _defined_cs_pre_[sc] withpostscript _defined_cs_post_[sc] + +primarydef a shadedinto b = + 1 + withprescript "sh_color=into" + withprescript "sh_color_a=" & colordecimals a + withprescript "sh_color_b=" & colordecimals b enddef ; +% END OF NEW + +% Graphic text (we will move code here) + def graphictext primary t = if _trial_run_ : let dographictextindeed = nographictext ; @@ -244,32 +434,80 @@ def graphictext primary t = fi dographictextindeed(t) enddef ; + def dographictext (expr t) = + % withprescript "gt_stage=final" begingroup ; save figurepicture ; picture figurepicture ; figurepicture := currentpicture ; currentpicture := nullpicture ; currentgraphictext := currentgraphictext + 1 ; dofinishgraphictext enddef ; + def nographictext (expr t) text rest = - draw unitsquare withprescript "gt" withpostscript t ; + draw unitsquare withprescript "gt_stage=trial" withpostscript t enddef ; -def savegraphictext (expr str) = + +% def savegraphictext (expr str) = +% enddef ; + +% def erasegraphictextfile = +% enddef ; + +% Layers + +def onlayer primary name = + withprescript "la_name=" & name enddef ; -def erasegraphictextfile = + + +% Figures + +% def externalfigure primary filename = +% doexternalfigure (filename) +% enddef ; +% +% def doexternalfigure (expr filename) text transformation = +% if true : % a bit incompatible esp scaled 1cm now scaled the natural size +% draw rawtextext("\externalfigure[" & filename & "]") transformation ; +% else : +% draw unitsquare transformation withprescript "fg_name=" & filename ; +% fi ; +% enddef ; + +def withmask primary filename = + withprescript "fg_mask=" & filename enddef ; def externalfigure primary filename = - doexternalfigure (filename) + if false : + rawtextext("\externalfigure[" & filename & "]") + else : + image ( + addto currentpicture doublepath unitsquare + withprescript "fg_name=" & filename ; + ) +% unitsquare +% withpen pencircle scaled 0 +% withprescript "fg_name=" & filename + fi enddef ; -def doexternalfigure (expr filename) text transformation = - draw unitsquare transformation withprescript "fg" withpostscript filename ; + +def figure primary filename = + rawtextext("\externalfigure[" & filename & "]") enddef ; +% Positions + def register (expr label, width, height, offset) = - draw unitsquare xscaled width yscaled height shifted offset withprescript "ps" withpostscript label ; + image ( + addto currentpicture doublepath unitsquare xscaled width yscaled height shifted offset + withprescript "ps_label=" & label ; + ) ; % no transformations enddef ; +% Housekeeping + extra_beginfig := extra_beginfig & "currentgraphictext := 0 ; " ; extra_endfig := extra_endfig & "finishsavingdata ; " ; extra_endfig := extra_endfig & "resettextexts ; " ; @@ -277,6 +515,19 @@ extra_endfig := extra_endfig & "resettextexts ; " ; boolean cmykcolors ; cmykcolors := true ; boolean spotcolors ; spotcolors := true ; +% Bonus + vardef verbatim(expr str) = ditto & "\detokenize{" & str & "}" & ditto enddef ; + +% New + +def bitmapimage(expr xresolution, yresolution, data) = + image ( + addto currentpicture doublepath unitsquare + withprescript "bm_xresolution=" & decimal xresolution + withprescript "bm_yresolution=" & decimal yresolution + withpostscript data ; + ) +enddef ; |