ref: a411870ee4640241e3c494367d922847da84f972
dir: purgatorio/appl/lib/pslib.b
implement Pslib;
include "sys.m";
sys: Sys;
include "draw.m";
draw : Draw;
Image, Display,Rect,Point : import draw;
include "bufio.m";
bufmod : Bufio;
include "tk.m";
tk: Tk;
Toplevel: import tk;
Iobuf : import bufmod;
include "string.m";
str : String;
include "daytime.m";
time : Daytime;
include "pslib.m";
# old module declaration.
# this whole thing needs a revamp, so almost all the old external
# linkages have been removed until there's time to do it properly.
#Pslib : module
#{
# PATH: con "/dis/lib/pslib.dis";
#
# init: fn(env: ref Draw->Context, t: ref Tk->Toplevel, boxes: int, deb: int): string;
# getfonts: fn(input: string): string;
# preamble: fn(ioutb: ref Bufio->Iobuf, bbox: Draw->Rect): string;
# trailer: fn(ioutb: ref Bufio->Iobuf, pages: int): string;
# printnewpage: fn(pagenum: int, end: int, ioutb: ref Bufio->Iobuf);
# parseTkline: fn(ioutb: ref Bufio->Iobuf, input: string): string;
# stats: fn(): (int, int, int);
# deffont: fn(): string;
# image2psfile: fn(ioutb: ref Bufio->Iobuf, im: ref Draw->Image, dpi: int) : string;
#};
ASCII,RUNE,IMAGE : con iota;
Iteminfo : adt
{
itype: int;
offset: int; # offset from the start of line.
width: int; # width....
ascent: int; # ascent of the item
font: int; # font
line : int; # line its on
buf : string;
};
Lineinfo : adt
{
xorg: int;
yorg: int;
width: int;
height: int;
ascent: int;
};
font_arr := array[256] of {* => (-1,"")};
remap := array[20] of (string,string);
PXPI : con 100;
PTPI : con 100;
boxes: int;
debug: int;
totitems: int;
totlines: int;
curfont: int;
def_font: string;
def_font_type: int;
curfonttype: int;
pagestart: int;
ctxt: ref Draw->Context;
t: ref Toplevel;
nomod(s: string)
{
sys->print("pslib: cannot load %s: %r\n", s);
raise "fail:bad module";
}
init(bufio: Bufio)
{
sys = load Sys Sys->PATH;
draw = load Draw Draw->PATH;
tk= load Tk Tk->PATH;
if (tk == nil)
nomod(Tk->PATH);
str = load String String->PATH;
if (str == nil)
nomod(String->PATH);
bufmod = bufio;
}
oldinit(env: ref Draw->Context, d: ref Toplevel, nil: int,deb: int): string
{
sys = load Sys Sys->PATH;
str = load String String->PATH;
draw = load Draw Draw->PATH;
tk= load Tk Tk->PATH;
bufmod = load Bufio Bufio->PATH;
ctxt=env;
t=d;
debug = deb;
totlines=0;
totitems=0;
pagestart=0;
boxes=0; #box;
curfont=0;
e := loadfonts();
if (e != "")
return e;
return "";
}
stats(): (int,int,int)
{
return (totitems,totlines,curfont);
}
loadfonts() : string
{
input : string;
iob:=bufmod->open("/fonts/psrename",bufmod->OREAD);
if (iob==nil)
return sys->sprint("can't open /fonts/psrename: %r");
i:=0;
while((input=iob.gets('\n'))!=nil){
(tkfont,psfont):=str->splitl(input," ");
psfont=psfont[1:len psfont -1];
remap[i]=(tkfont,psfont);
i++;
}
return "";
}
preamble(ioutb: ref Iobuf, bb: Rect)
{
time = load Daytime Daytime->PATH;
username := "";
fd := sys->open("/dev/user", sys->OREAD);
if(fd != nil) {
b := array[128] of byte;
n := sys->read(fd, b, len b);
b=b[0:n];
username = string b;
fd = nil;
}
if(bb.max.x == 0 && bb.max.y == 0) {
bb.max.x = 612;
bb.max.y = 792;
}
ioutb.puts("%!PS-Adobe-3.0\n");
ioutb.puts(sys->sprint("%%%%Creator: Pslib 1.0 (%s)\n",username));
ioutb.puts(sys->sprint("%%%%CreationDate: %s\n",time->time()));
ioutb.puts("%%Pages: (atend) \n");
ioutb.puts(sys->sprint("%%%%BoundingBox: %d %d %d %d\n", bb.min.x, bb.min.y, bb.max.x, bb.max.y));
ioutb.puts("%%EndComments\n");
ioutb.puts("%%BeginProlog\n");
ioutb.puts("/doimage {\n");
ioutb.puts("/bps exch def\n");
ioutb.puts("/width exch def\n");
ioutb.puts("/height exch def\n");
ioutb.puts("/xstart exch def\n");
ioutb.puts("/ystart exch def\n");
ioutb.puts("/iwidth exch def\n");
ioutb.puts("/ascent exch def\n");
ioutb.puts("/iheight exch def\n");
ioutb.puts("gsave\n");
if(boxes)
ioutb.puts("xstart ystart iwidth iheight rectstroke\n");
# if bps==8, use inferno colormap; else (bps < 8) it's grayscale
ioutb.puts("bps 8 eq\n");
ioutb.puts("{\n");
ioutb.puts("[/Indexed /DeviceRGB 255 \n");
ioutb.puts("<ffffff ffffaa ffff55 ffff00 ffaaff ffaaaa ffaa55 ffaa00 ff55ff ff55aa ff5555 ff5500\n");
ioutb.puts("ff00ff ff00aa ff0055 ff0000 ee0000 eeeeee eeee9e eeee4f eeee00 ee9eee ee9e9e ee9e4f\n");
ioutb.puts("ee9e00 ee4fee ee4f9e ee4f4f ee4f00 ee00ee ee009e ee004f dd0049 dd0000 dddddd dddd93\n");
ioutb.puts("dddd49 dddd00 dd93dd dd9393 dd9349 dd9300 dd49dd dd4993 dd4949 dd4900 dd00dd dd0093\n");
ioutb.puts("cc0088 cc0044 cc0000 cccccc cccc88 cccc44 cccc00 cc88cc cc8888 cc8844 cc8800 cc44cc\n");
ioutb.puts("cc4488 cc4444 cc4400 cc00cc aaffaa aaff55 aaff00 aaaaff bbbbbb bbbb5d bbbb00 aa55ff\n");
ioutb.puts("bb5dbb bb5d5d bb5d00 aa00ff bb00bb bb005d bb0000 aaffff 9eeeee 9eee9e 9eee4f 9eee00\n");
ioutb.puts("9e9eee aaaaaa aaaa55 aaaa00 9e4fee aa55aa aa5555 aa5500 9e00ee aa00aa aa0055 aa0000\n");
ioutb.puts("990000 93dddd 93dd93 93dd49 93dd00 9393dd 999999 99994c 999900 9349dd 994c99 994c4c\n");
ioutb.puts("994c00 9300dd 990099 99004c 880044 880000 88cccc 88cc88 88cc44 88cc00 8888cc 888888\n");
ioutb.puts("888844 888800 8844cc 884488 884444 884400 8800cc 880088 55ff55 55ff00 55aaff 5dbbbb\n");
ioutb.puts("5dbb5d 5dbb00 5555ff 5d5dbb 777777 777700 5500ff 5d00bb 770077 770000 55ffff 55ffaa\n");
ioutb.puts("4fee9e 4fee4f 4fee00 4f9eee 55aaaa 55aa55 55aa00 4f4fee 5555aa 666666 666600 4f00ee\n");
ioutb.puts("5500aa 660066 660000 4feeee 49dddd 49dd93 49dd49 49dd00 4993dd 4c9999 4c994c 4c9900\n");
ioutb.puts("4949dd 4c4c99 555555 555500 4900dd 4c0099 550055 550000 440000 44cccc 44cc88 44cc44\n");
ioutb.puts("44cc00 4488cc 448888 448844 448800 4444cc 444488 444444 444400 4400cc 440088 440044\n");
ioutb.puts("00ff00 00aaff 00bbbb 00bb5d 00bb00 0055ff 005dbb 007777 007700 0000ff 0000bb 000077\n");
ioutb.puts("333333 00ffff 00ffaa 00ff55 00ee4f 00ee00 009eee 00aaaa 00aa55 00aa00 004fee 0055aa\n");
ioutb.puts("006666 006600 0000ee 0000aa 000066 222222 00eeee 00ee9e 00dd93 00dd49 00dd00 0093dd\n");
ioutb.puts("009999 00994c 009900 0049dd 004c99 005555 005500 0000dd 000099 000055 111111 00dddd\n");
ioutb.puts("00cccc 00cc88 00cc44 00cc00 0088cc 008888 008844 008800 0044cc 004488 004444 004400\n");
ioutb.puts("0000cc 000088 000044 000000>\n");
ioutb.puts("] setcolorspace\n");
ioutb.puts("/decodemat [0 255] def\n");
ioutb.puts("}\n");
# else, bps != 8
ioutb.puts("{\n");
ioutb.puts("[/DeviceGray] setcolorspace\n");
ioutb.puts("/decodemat [1 0] def\n");
ioutb.puts("}\n");
ioutb.puts("ifelse\n");
ioutb.puts("xstart ystart translate \n");
ioutb.puts("iwidth iheight scale \n");
ioutb.puts("<<\n");
ioutb.puts("/ImageType 1\n");
ioutb.puts("/Width width \n");
ioutb.puts("/Height height \n");
ioutb.puts("/BitsPerComponent bps %bits/sample\n");
ioutb.puts("/Decode decodemat % Inferno cmap or DeviceGray value\n");
ioutb.puts("/ImageMatrix [width 0 0 height neg 0 height]\n");
ioutb.puts("/DataSource currentfile /ASCII85Decode filter\n");
ioutb.puts(">> \n");
ioutb.puts("image\n");
ioutb.puts("grestore\n");
ioutb.puts("} def\n");
ioutb.puts("%%EndProlog\n");
}
trailer(ioutb : ref Iobuf,pages : int)
{
ioutb.puts("%%Trailer\n%%Pages: "+string pages+"\n%%EOF\n");
}
printnewpage(pagenum : int,end : int, ioutb : ref Iobuf)
{
pnum:=string pagenum;
if (end){
# bounding box
if (boxes){
ioutb.puts("18 18 moveto 594 18 lineto 594 774 lineto 18 774 lineto"+
" closepath stroke\n");
}
ioutb.puts("showpage\n%%EndPage "+pnum+" "+pnum+"\n");
} else
ioutb.puts("%%Page: "+pnum+" "+pnum+"\n");
}
printimage(ioutb: ref Iobuf, line: Lineinfo, imag: Iteminfo): (string,string)
{
RM:=612-18;
class:=tk->cmd(t,"winfo class "+imag.buf);
#sys->print("Looking for [%s] of type [%s]\n",imag.buf,class);
if (line.xorg+imag.offset+imag.width>RM)
imag.width=RM-line.xorg-imag.offset;
case class {
"button" or "menubutton" =>
# try to get the text out and print it....
ioutb.puts(sys->sprint("%d %d moveto\n",line.xorg+imag.offset,
line.yorg));
msg:=tk->cmd(t,sys->sprint("%s cget -text",imag.buf));
ft:=tk->cmd(t,sys->sprint("%s cget -font",imag.buf));
sys->print("font is [%s]\n",ft);
ioutb.puts(sys->sprint("%d %d %d %d rectstroke\n",
line.xorg+imag.offset,line.yorg,imag.width,
line.height));
return (class,msg);
"label" =>
(im,nil,nil) := tk->getimage(t,imag.buf);
if (im!=nil){
bps := im.depth;
ioutb.puts(sys->sprint("%d %d %d %d %d %d %d %d doimage\n",
im.r.dy(),line.ascent,im.r.dx(),line.yorg,
line.xorg+imag.offset,im.r.dy(), im.r.dx(), bps));
imagebits(ioutb,im);
}
return (class,"");
"entry" =>
ioutb.puts(sys->sprint("%d %d moveto\n",line.xorg+imag.offset,
line.yorg));
ioutb.puts(sys->sprint("%d %d %d %d rectstroke\n",
line.xorg+imag.offset,line.yorg,imag.width,
line.height));
return (class,"");
* =>
sys->print("Unhandled class [%s]\n",class);
return (class,"Error");
}
return ("","");
}
printline(ioutb: ref Iobuf,line : Lineinfo,items : array of Iteminfo)
{
xstart:=line.xorg;
wid:=xstart;
# items
if (len items == 0) return;
for(j:=0;j<len items;j++){
msg:="";
class:="";
if (items[j].itype==IMAGE)
(class,msg)=printimage(ioutb,line,items[j]);
if (items[j].itype!=IMAGE || class=="button"|| class=="menubutton"){
setfont(ioutb,items[j].font);
if (msg!=""){
# position the text in the center of the label
# moveto curpoint
# (msg) stringwidth pop xstart sub 2 div
ioutb.puts(sys->sprint("%d %d moveto\n",xstart+items[j].offset,
line.yorg+line.height-line.ascent));
ioutb.puts(sys->sprint("(%s) dup stringwidth pop 2 div",
msg));
ioutb.puts(" 0 rmoveto show\n");
}
else {
ioutb.puts(sys->sprint("%d %d moveto\n",
xstart+items[j].offset,line.yorg+line.height
-line.ascent));
ioutb.puts(sys->sprint("(%s) show\n",items[j].buf));
}
}
wid=xstart+items[j].offset+items[j].width;
}
if (boxes)
ioutb.puts(sys->sprint("%d %d %d %d rectstroke\n",line.xorg,line.yorg,
wid,line.height));
}
setfont(ioutb: ref Iobuf, font: int)
{
ftype : int;
fname : string;
if ((curfonttype & font) != curfonttype){
for(f:=0;f<curfont;f++){
(ftype,fname)=font_arr[f];
if ((ftype&font)==ftype)
break;
}
if (f==curfont){
fname=def_font;
ftype=def_font_type;
}
ioutb.puts(sys->sprint("%s setfont\n",fname));
curfonttype=ftype;
}
}
parseTkline(ioutb: ref Iobuf, input: string): string
{
thisline : Lineinfo;
PS:=792-18-18; # page size in points
TM:=792-18; # top margin in points
LM:=18; # left margin 1/4 in. in
# BM:=18; # bottom margin 1/4 in. in
x : int;
(x,input)=str->toint(input,10);
thisline.xorg=(x*PTPI)/PXPI;
(x,input)=str->toint(input,10);
thisline.yorg=(x*PTPI)/PXPI;
(x,input)=str->toint(input,10);
thisline.width=(x*PTPI)/PXPI;
(x,input)=str->toint(input,10);
thisline.height=(x*PTPI)/PXPI;
(x,input)=str->toint(input,10);
thisline.ascent=(x*PTPI)/PXPI;
(x,input)=str->toint(input,10);
# thisline.numitems=x;
if (thisline.width==0 || thisline.height==0)
return "";
if (thisline.yorg+thisline.height-pagestart>PS){
pagestart=thisline.yorg;
return "newpage";
# must resend this line....
}
thisline.yorg=TM-thisline.yorg-thisline.height+pagestart;
thisline.xorg+=LM;
(items, err) :=getline(totlines,input);
if(err != nil)
return err;
totitems+=len items;
totlines++;
printline(ioutb,thisline,items);
return "";
}
getfonts(input: string) : string
{
tkfont,psfont : string;
j : int;
retval := "";
if (input[0]=='%')
return "";
# get a line of the form
# 5::/fonts/lucida/moo.16.font
# translate it to...
# 32 f32.16
# where 32==1<<5 and f32.16 is a postscript function that loads the
# appropriate postscript font (from remap)
# and writes it to fonts....
(bits,font):=str->toint(input,10);
if (bits!=-1)
bits=1<<bits;
else{
bits=1;
def_font_type=bits;
curfonttype=def_font_type;
}
font=font[2:];
for(i:=0;i<len remap;i++){
(tkfont,psfont)=remap[i];
if (tkfont==font)
break;
}
if (i==len remap)
psfont="Times-Roman";
(font,nil)=str->splitr(font,".");
(nil,font)=str->splitr(font[0:len font-1],".");
(fsize,nil):=str->toint(font,10);
fsize=(PTPI*3*fsize)/(2*PXPI);
enc_font:="f"+string bits+"."+string fsize;
ps_func:="/"+enc_font+" /"+psfont+" findfont "+string fsize+
" scalefont def\n";
sy_font:="sy"+string fsize;
xtra_func:="/"+sy_font+" /Symbol findfont "+string fsize+
" scalefont def\n";
for(i=0;i<len font_arr;i++){
(j,font)=font_arr[i];
if (j==-1) break;
}
if (j==len font_arr)
return "Error";
font_arr[i]=(bits,enc_font);
if (bits==1)
def_font=enc_font;
curfont++;
retval+= ps_func;
retval+= xtra_func;
return retval;
}
deffont() : string
{
return def_font;
}
getline(k : int, input : string) : (array of Iteminfo, string)
{
lineval,args : string;
j, nb : int;
lw:=0;
wid:=0;
flags:=0;
item_arr := array[32] of {* => Iteminfo(-1,-1,-1,-1,-1,-1,"")};
curitem:=0;
while(input!=nil){
(nil,input)=str->splitl(input,"[");
if (input==nil)
break;
com:=input[1];
input=input[2:];
case com {
'A' =>
nb=0;
# get the width of the item
(wid,input)=str->toint(input,10);
wid=(wid*PTPI)/PXPI;
if (input[0]!='{')
return (nil, sys->sprint(
"line %d item %d Bad Syntax : '{' expected",
k,curitem));
# get the args.
(args,input)=str->splitl(input,"}");
# get the flags.
# assume there is only one int flag..
(flags,args)=str->toint(args[1:],16);
if (args!=nil && debug){
sys->print("line %d item %d extra flags=%s\n",
k,curitem,args);
}
if (flags<1024) flags=1;
item_arr[curitem].font=flags;
item_arr[curitem].offset=lw;
item_arr[curitem].width=wid;
lw+=wid;
for(j=1;j<len input;j++){
if ((input[j]==')')||(input[j]=='('))
lineval[len lineval]='\\';
if (input[j]=='[')
nb++;
if (input[j]==']')
if (nb==0)
break;
else
nb--;
lineval[len lineval]=input[j];
}
if (j<len input)
input=input[j:];
item_arr[curitem].buf=lineval;
item_arr[curitem].line=k;
item_arr[curitem].itype=ASCII;
curitem++;
lineval="";
'R' =>
nb=0;
# get the width of the item
(wid,input)=str->toint(input,10);
wid=(wid*PTPI)/PXPI;
if (input[0]!='{')
return (nil, "Bad Syntax : '{' expected");
# get the args.
(args,input)=str->splitl(input,"}");
# get the flags.
# assume there is only one int flag..
(flags,args)=str->toint(args[1:],16);
if (args!=nil && debug){
sys->print("line %d item %d Bad Syntax args=%s",
k,curitem,args);
}
item_arr[curitem].font=flags;
item_arr[curitem].offset=lw;
item_arr[curitem].width=wid;
lw+=wid;
for(j=1;j<len input;j++){
if (input[j]=='[')
nb++;
if (input[j]==']')
if (nb==0)
break;
else
nb--;
case input[j] {
8226 => # bullet
lineval+="\\267 ";
169 => # copyright
lineval+="\\251 ";
curitem++;
* =>
lineval[len lineval]=input[j];
}
}
if (j>len input)
input=input[j:];
item_arr[curitem].buf=lineval;
item_arr[curitem].line=k;
item_arr[curitem].itype=RUNE;
curitem++;
lineval="";
'N' or 'C'=>
# next item
for(j=0;j<len input;j++)
if (input[j]==']')
break;
if (j>len input)
input=input[j:];
'T' =>
(wid,input)=str->toint(input,10);
wid=(wid*PTPI)/PXPI;
item_arr[curitem].offset=lw;
item_arr[curitem].width=wid;
lw+=wid;
lineval[len lineval]='\t';
# next item
for(j=0;j<len input;j++)
if (input[j]==']')
break;
if (j>len input)
input=input[j:];
item_arr[curitem].buf=lineval;
item_arr[curitem].line=k;
item_arr[curitem].itype=ASCII;
curitem++;
lineval="";
'W' =>
(wid,input)=str->toint(input,10);
wid=(wid*PTPI)/PXPI;
item_arr[curitem].offset=lw;
item_arr[curitem].width=wid;
item_arr[curitem].itype=IMAGE;
lw+=wid;
# next item
for(j=1;j<len input;j++){
if (input[j]==']')
break;
lineval[len lineval]=input[j];
}
item_arr[curitem].buf=lineval;
if (j>len input)
input=input[j:];
curitem++;
lineval="";
* =>
# next item
for(j=0;j<len input;j++)
if (input[j]==']')
break;
if (j>len input)
input=input[j:];
}
}
return (item_arr[0:curitem], "");
}
writeimage(ioutb: ref Iobuf, im: ref Draw->Image, dpi: int)
{
r := im.r;
width := r.dx();
height := r.dy();
iwidth := width * 72 / dpi;
iheight := height * 72 / dpi;
xstart := 72;
ystart := 720 - iheight;
bbox := Rect((xstart,ystart), (xstart+iwidth,ystart+iheight));
preamble(ioutb, bbox);
ioutb.puts("%%Page: 1\n%%BeginPageSetup\n");
ioutb.puts("/pgsave save def\n");
ioutb.puts("%%EndPageSetup\n");
bps := im.depth;
ioutb.puts(sys->sprint("%d 0 %d %d %d %d %d %d doimage\n", iheight, iwidth, ystart, xstart, height, width, bps));
imagebits(ioutb, im);
ioutb.puts("pgsave restore\nshowpage\n");
trailer(ioutb, 1);
ioutb.flush();
}
imagebits(ioutb: ref Iobuf, im: ref Draw->Image)
{
if(debug)
sys->print("imagebits, r=%d %d %d %d, depth=%d\n",
im.r.min.x, im.r.min.y, im.r.max.x, im.r.max.y, im.depth);
width:=im.r.dx();
height:=im.r.dy();
bps:=im.depth; # bits per sample
spb := 1; # samples per byte
bitoff := 0; # bit offset of beginning sample within first byte
linebytes := width;
if(bps < 8) {
spb=8/bps;
bitoff=(im.r.min.x % spb) * bps;
linebytes=(bitoff + (width-1)*bps) / 8 + 1;
}
arr:=array[linebytes*height] of byte;
n:=im.readpixels(im.r,arr);
if(debug)
sys->print("linebytes=%d, height=%d, readpixels returned %d\n",
linebytes, height, n);
if(n < 0) {
n = len arr;
for(i := 0; i < n; i++)
arr[i] = byte 0;
}
if(bitoff != 0) {
# Postscript image wants beginning of line at beginning of byte
pslinebytes := (width-1)*bps + 1;
if(debug)
sys->print("bitoff=%d, pslinebytes=%d\n", bitoff, pslinebytes);
old:=arr;
n = pslinebytes*height;
arr=array[n] of byte;
a0 := 0;
o0 := 0;
for(y := 0; y < height; y++) {
for(i:=0; i < pslinebytes; i++)
arr[a0+i] = (old[o0+i]<<bitoff) | (old[o0+i+1]>>(8-bitoff));
a0 += pslinebytes;
o0 += linebytes;
}
}
lsf:=0;
n4 := (n/4)*4;
for(i:=0;i<n4;i+=4){
s:=cmap2ascii85(arr[i:i+4]);
lsf+=len s;
ioutb.puts(s);
if (lsf>74){
ioutb.puts("\n");
lsf=0;
}
}
nrest:=n-n4;
if(nrest!=0){
foo:=array[4] of {* => byte 0};
foo[0:]=arr[n4:n];
s:=cmap2ascii85(foo);
if(s=="z")
s="!!!!!";
ioutb.puts(s[0:nrest+1]);
}
ioutb.puts("~>\n");
ioutb.flush();
}
cmap2ascii85(arr : array of byte) : string
{
b := array[4] of {* => big 0};
for(i:=0;i<4;i++)
b[i]=big arr[i];
i1:=(b[0]<<24)+(b[1]<<16)+(b[2]<<8)+b[3];
c1:=sys->sprint("%c%c%c%c%c",'!'+int ((i1/big (85*85*85*85))%big 85),
'!'+int ((i1/big (85*85*85))%big 85),
'!'+int ((i1/big (85*85))% big 85),
'!'+int ((i1/big 85)% big 85),'!'+int(i1% big 85));
if (c1=="!!!!!") c1="z";
return c1;
}