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-rw-r--r--metapost/context/base/mp-page.mp176
1 files changed, 176 insertions, 0 deletions
diff --git a/metapost/context/base/mp-page.mp b/metapost/context/base/mp-page.mp
index 59d8bccbc..a4f0a86ef 100644
--- a/metapost/context/base/mp-page.mp
+++ b/metapost/context/base/mp-page.mp
@@ -475,4 +475,180 @@ def position_anchor_bar(expr p_b_self, p_e_self, y_b_self, y_e_self, h_b_self, d
StopPage ;
enddef ;
+% Crop stuff
+
+vardef crop_marks_lines (expr box, length, offset) =
+ save p ; picture p ;
+ p := image (
+ draw ((llcorner box) -- (llcorner box) shifted (-length,0)) shifted (-offset,0) ;
+ draw ((llcorner box) -- (llcorner box) shifted (0,-length)) shifted (0,-offset) ;
+ draw ((lrcorner box) -- (lrcorner box) shifted ( length,0)) shifted ( offset,0) ;
+ draw ((lrcorner box) -- (lrcorner box) shifted (0,-length)) shifted (0,-offset) ;
+ draw ((ulcorner box) -- (ulcorner box) shifted (-length,0)) shifted (-offset,0) ;
+ draw ((ulcorner box) -- (ulcorner box) shifted (0, length)) shifted (0, offset) ;
+ draw ((urcorner box) -- (urcorner box) shifted ( length,0)) shifted ( offset,0) ;
+ draw ((urcorner box) -- (urcorner box) shifted (0, length)) shifted (0, offset) ;
+ ) ;
+ setbounds p to box ;
+ p
+enddef ;
+
+vardef crop_marks_cmyk =
+ save p ; picture p ; p := image (
+ fill ulcircle scaled 12.5 withcolor (1,0,0,0) ;
+ fill urcircle scaled 12.5 withcolor (0,1,0,0) ;
+ fill lrcircle scaled 12.5 withcolor (0,0,1,0) ;
+ fill llcircle scaled 12.5 withcolor (0,0,0,1) ;
+ draw (-10,0) -- (10,0) ;
+ draw (0,-10) -- (0,10) ;
+ draw fullcircle scaled 12.5 ;
+ ) ;
+ setbounds p to fullsquare scaled 20 ;
+ p
+enddef ;
+
+vardef crop_marks_gray =
+ save p ; picture p ; p := image (
+ fill ulcircle scaled 12.5 withcolor (0.00) ;
+ fill urcircle scaled 12.5 withcolor (0.25) ;
+ fill lrcircle scaled 12.5 withcolor (0.50) ;
+ fill llcircle scaled 12.5 withcolor (0.75) ;
+ draw (-10,0) -- (10,0) ;
+ draw (0,-10) -- (0,10) ;
+ draw (-6,0) -- (6,0) withcolor white ;
+ draw (0,-6) -- (0,6) withcolor white ;
+ draw fullcircle scaled 12.5 ;
+ ) ;
+ setbounds p to fullsquare scaled 20 ;
+ p
+enddef ;
+
+vardef crop_marks_cmykrgb =
+ save p ; picture p ; p := image (
+ fill ulcircle scaled 15 withcolor (1,0,0) ;
+ fill urcircle scaled 15 withcolor (0,1,0) ;
+ fill lrcircle scaled 15 withcolor (0,0,1) ;
+ fill llcircle scaled 15 withcolor (.5,.5,.5) ;
+ fill ulcircle scaled 10 withcolor (1,0,0,0) ;
+ fill urcircle scaled 10 withcolor (0,1,0,0) ;
+ fill lrcircle scaled 10 withcolor (0,0,1,0) ;
+ fill llcircle scaled 10 withcolor (0,0,0,1) ;
+ draw (-10,0) -- (10,0) ;
+ draw (0,-10) -- (0,10) ;
+ draw fullcircle scaled 10 ;
+ draw fullcircle scaled 15 ;
+ ) ;
+ setbounds p to fullsquare scaled 20 ;
+ p
+enddef ;
+
+vardef crop_color(expr c, h, w, dx, dy, ts) =
+ image (
+ save p ; path p ;
+ for i=1 upto 6 :
+ p := fullsquare
+ xscaled w
+ yscaled h
+ shifted (dx,dy-i*h) ;
+ fill p
+ withcolor (crop_colors[i]*c) ;
+ draw textext("\format{'@0.2f'," & decimal crop_colors[i] & "}")
+ scaled ts
+ shifted center p withcolor white ;
+ endfor ;
+ )
+enddef ;
+
+vardef crop_gray(expr c, h, w, dx, dy, ts) =
+ image (
+ save p ; path p ;
+ for i=.05 step .05 until 1 :
+ p := fullsquare
+ xscaled w
+ yscaled h
+ shifted (20*(i-1)*w+dx,dy) ;
+ fill p
+ withcolor (i*c) ;
+ draw textext("\format{'@0.2f'," & decimal i & "}")
+ scaled ts
+ shifted center p withcolor white ;
+ endfor ;
+ )
+enddef ;
+
+% draw crop_marks_cmyk shifted llcorner more ;
+% draw crop_marks_cmyk shifted lrcorner more ;
+% draw crop_marks_cmyk shifted ulcorner more ;
+% draw crop_marks_cmyk shifted urcorner more ;
+
+def page_marks_add_color(expr width, height, length, offset) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ numeric crop_colors[] ;
+ crop_colors[1] := 1 ;
+ crop_colors[2] := 0.95 ;
+ crop_colors[3] := 0.75 ;
+ crop_colors[4] := 0.50 ;
+ crop_colors[5] := 0.25 ;
+ crop_colors[6] := 0.05 ;
+
+ numeric h ; h := height / 20 ;
+ numeric w ; w := width / 20 ;
+ numeric d ; d := offset + length/2 ;
+
+ draw crop_color((1,0,0,0),h,length,xpart ulcorner page - d, 10h,length/20) ;
+ draw crop_color((0,1,0,0),h,length,xpart ulcorner page - d,3.5h,length/20) ;
+ draw crop_color((0,0,1,0),h,length,xpart ulcorner page - d, -3h,length/20) ;
+
+ draw crop_color((0,1,1,0),h,length,xpart urcorner page + d, 10h,length/20) ;
+ draw crop_color((1,0,1,0),h,length,xpart urcorner page + d,3.5h,length/20) ;
+ draw crop_color((1,1,0,0),h,length,xpart urcorner page + d, -3h,length/20) ;
+
+ draw crop_gray((0,0,0,1),length, w,-xpart llcorner page,-ypart llcorner page + d ,w/20) ;
+ draw crop_gray((1,0,0,0),length/3,w,-xpart llcorner page, ypart llcorner page - d + 1length/3,w/20) ;
+ draw crop_gray((0,1,0,0),length/3,w,-xpart llcorner page, ypart llcorner page - d - 0length/3,w/20) ;
+ draw crop_gray((0,0,1,0),length/3,w,-xpart llcorner page, ypart llcorner page - d - 1length/3,w/20) ;
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
+def page_marks_add_marking(expr width, height, length, offset) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ draw crop_marks_gray shifted center(topboundary more) shifted (0, offset+length);
+ draw crop_marks_cmyk shifted center(bottomboundary more) shifted (0,-offset-length);
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
+def page_marks_add_lines(expr width, height, length, offset) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ draw crop_marks_lines(page,length,offset) ;
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
+def page_marks_add_number(expr width, height, length, offset, n) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ for s=llcorner more, lrcorner more, ulcorner more, urcorner more :
+ draw textext(decimal n) shifted s ;
+ endfor ;
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
endinput ;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 15:21:25 +0000