ref: d0ab3a0dd8f6355b3603d0fb04043a9ae867639b
dir: /appl/wm/brutus.b/
implement Brutus;
include "sys.m";
sys: Sys;
include "draw.m";
draw: Draw;
Context: import draw;
ctxt: ref Context;
include "tk.m";
tk: Tk;
include "tkclient.m";
tkclient: Tkclient;
include "dialog.m";
dialog: Dialog;
include "selectfile.m";
selectfile: Selectfile;
include "bufio.m";
bufio: Bufio;
Iobuf: import bufio;
include "workdir.m";
include "plumbmsg.m";
plumbmsg: Plumbmsg;
Msg: import plumbmsg;
include "brutus.m";
include "brutusext.m";
EXTDIR: con "/dis/wm/brutus";
NEXTRA: con NTAG-NFONTTAG;
DEFFONT: con "/fonts/lucidasans/unicode.8.font";
DEFFONTNAME: con "Roman";
DEFSIZE: con 10;
DEFTAG: con "Roman.10";
SETFONT: con " -font "+DEFFONT+" ";
FOCUS: con "focus .ft.t";
NOSEL: con ".ft.t tag remove sel sel.first sel.last";
UPDATE: con "update";
#
# Foreign keyboards and languages
#
Remaptab: adt
{
in, out: int;
};
include "hebrew.m";
BS: con 8; # ^h backspace character
BSW: con 23; # ^w bacspace word
BSL: con 21; # ^u backspace line
ESC: con 27; # ^[ cut selection
Name: con "Brutus";
# build menu
menu_cfg := array[] of {
# menu
"menu .m",
".m add command -text Cut -command {send edit cut}",
".m add command -text Paste -command {send edit paste}",
".m add command -text Snarf -command {send edit snarf}",
".m add command -text Look -command {send edit look}",
};
brutus_cfg := array[] of {
# buttons
"button .b.Tag -text Tag -command {send cmd tag} -state disabled",
"menubutton .b.Font -text Roman -menu .b.Font.menu -underline -1 -state disabled",
"menu .b.Font.menu",
".b.Font.menu add command -label Roman -command {send cmd font Roman}",
".b.Font.menu add command -label Italic -command {send cmd font Italic}",
".b.Font.menu add command -label Bold -command {send cmd font Bold}",
".b.Font.menu add command -label Type -command {send cmd font Type}",
"checkbutton .b.Applyfont -variable Applyfont -command {send cmd applyfont}} -state disabled",
"button .b.Applyfontnow -text Font -command {send cmd applyfontnow} -state disabled",
"button .b.Applysizenow -text Size -command {send cmd applysizenow} -state disabled",
"button .b.Applyfontsizenow -text F&S -command {send cmd applyfontsizenow} -state disabled",
"menubutton .b.Size -text 10pt -menu .b.Size.menu -underline -1 -state disabled",
"menu .b.Size.menu",
".b.Size.menu add command -label 6pt -command {send cmd size 6}",
".b.Size.menu add command -label 8pt -command {send cmd size 8}",
".b.Size.menu add command -label 10pt -command {send cmd size 10}",
".b.Size.menu add command -label 12pt -command {send cmd size 12}",
".b.Size.menu add command -label 16pt -command {send cmd size 16}",
"button .b.Put -text Put -command {send cmd put} -state disabled",
# text
"frame .ft",
"scrollbar .ft.scroll -command {.ft.t yview}",
"text .ft.t -height 7c -tabs {1c} -wrap word -yscrollcommand {.ft.scroll set}",
FOCUS,
# pack
"pack .b.File .b.Ext .b.Tag .b.Applyfontnow .b.Applysizenow .b.Applyfontsizenow .b.Applyfont .b.Font .b.Size .b.Put -side left",
"pack .b -anchor w",
"pack .ft.scroll -side left -fill y",
"pack .ft.t -fill both -expand 1",
"pack .ft -fill both -expand 1",
"pack propagate . 0",
};
control_cfg := array[] of {
# text
"frame .ft",
"scrollbar .ft.scroll -command {.ft.t yview}",
"text .ft.t -height 4c -wrap word -yscrollcommand {.ft.scroll set}",
"pack .b.File",
"pack .b -anchor w",
"pack .ft.scroll -side left -fill y",
"pack .ft.t -fill both -expand 1",
"pack .ft -fill both -expand 1",
"pack propagate . 0",
};
# bindings to build nice controls in text widget
input_cfg := array[] of {
# input
"bind .ft.t <Key> {send keys {%A}}",
"bind .ft.t <Control-h> {send keys {%A}}",
"bind .ft.t <Control-w> {send keys {%A}}",
"bind .ft.t <Control-u> {send keys {%A}}",
"bind .ft.t <Button-1> +{grab set .ft.t; send but1 pressed}",
"bind .ft.t <Double-Button-1> +{grab set .ft.t; send but1 pressed}",
"bind .ft.t <ButtonRelease-1> +{grab release .ft.t; send but1 released}",
"bind .ft.t <Button-2> {send but2 %X %Y}",
"bind .ft.t <Motion-Button-2-Button-1> {}",
"bind .ft.t <Motion-Button-2> {}",
"bind .ft.t <ButtonPress-3> {send but3 pressed}",
"bind .ft.t <ButtonRelease-3> {send but3 released %x %y}",
"bind .ft.t <Motion-Button-3> {}",
"bind .ft.t <Motion-Button-3-Button-1> {}",
"bind .ft.t <Double-Button-3> {}",
"bind .ft.t <Double-ButtonRelease-3> {}",
"bind .ft.t <FocusIn> +{send cmd focus}",
UPDATE
};
fontbuts := array[] of {
".b.Ext",
".b.Tag",
".b.Applyfontnow",
".b.Applysizenow",
".b.Applyfontsizenow",
".b.Applyfont",
".b.Font",
".b.Size",
};
fontname = array[NFONT] of {
"Roman",
"Italic",
"Bold",
"Type",
};
sizename = array[NSIZE] of {
"6",
"8",
"10",
"12",
"16",
};
tagname = array[NTAG] of {
# first NFONT*NSIZE are font/size names
"Roman.6",
"Roman.8",
"Roman.10",
"Roman.12",
"Roman.16",
"Italic.6",
"Italic.8",
"Italic.10",
"Italic.12",
"Italic.16",
"Bold.6",
"Bold.8",
"Bold.10",
"Bold.12",
"Bold.16",
"Type.6",
"Type.8",
"Type.10",
"Type.12",
"Type.16",
"Example",
"Caption",
"List",
"List-elem",
"Label",
"Label-ref",
"Exercise",
"Heading",
"No-fill",
"Author",
"Title",
"Index",
"Index-topic",
};
tagconfig = array[NTAG] of {
"-font /fonts/lucidasans/unicode.6.font",
"-font /fonts/lucidasans/unicode.7.font",
"-font /fonts/lucidasans/unicode.8.font",
"-font /fonts/lucidasans/unicode.10.font",
"-font /fonts/lucidasans/unicode.13.font",
"-font /fonts/lucidasans/italiclatin1.6.font",
"-font /fonts/lucidasans/italiclatin1.7.font",
"-font /fonts/lucidasans/italiclatin1.8.font",
"-font /fonts/lucidasans/italiclatin1.10.font",
"-font /fonts/lucidasans/italiclatin1.13.font",
"-font /fonts/lucidasans/boldlatin1.6.font",
"-font /fonts/lucidasans/boldlatin1.7.font",
"-font /fonts/lucidasans/boldlatin1.8.font",
"-font /fonts/lucidasans/boldlatin1.10.font",
"-font /fonts/lucidasans/boldlatin1.13.font",
"-font /fonts/lucidasans/typelatin1.6.font",
"-font /fonts/lucidasans/typelatin1.7.font",
"-font /fonts/pelm/latin1.9.font",
"-font /fonts/pelm/ascii.12.font",
"-font /fonts/pelm/ascii.16.font",
"-foreground #444444 -lmargin1 1c -lmargin2 1c; .ft.t tag lower Example",
"-foreground #444444; .ft.t tag lower Caption",
"-foreground #444444 -lmargin1 1c -lmargin2 1c; .ft.t tag lower List",
"-foreground #0000A0; .ft.t tag lower List-elem",
"-foreground #444444; .ft.t tag lower Label",
"-foreground #444444; .ft.t tag lower Label-ref",
"-foreground #444444; .ft.t tag lower Exercise",
"-foreground #444444; .ft.t tag lower Heading",
"-foreground #444444; .ft.t tag lower No-fill",
"-foreground #444444; .ft.t tag lower Author",
"-foreground #444444; .ft.t tag lower Title",
"-foreground #444444; .ft.t tag lower Index",
"-foreground #444444; .ft.t tag lower Index-topic",
};
enabled := array[] of {"disabled", "normal"};
File: adt
{
tk: ref Tk->Toplevel;
isctl: int;
applyfont: int;
fontsused: int;
name: string;
dirty: int;
font: string; # set by the buttons, not nec. by the text
size: int; # set by the buttons, not nec. by the text
fonttag: string; # set by the buttons, not nec. by the text
configed: array of int;
button1: int;
button3: int;
fontsok: int; # fonts and tags can be set
extensions: list of ref Ext;
};
Ext: adt
{
tkname: string;
modname: string;
mod: Brutusext;
args: string;
};
menuindex := "0";
snarftext := "";
snarfsgml := "";
central: chan of (ref File, string);
files: array of ref File; # global but modified only by control thread
plumbed := 0;
curdir := "";
lang := "";
init(c: ref Context, argv: list of string)
{
ctxt = c;
sys = load Sys Sys->PATH;
if (ctxt == nil) {
sys->fprint(sys->fildes(2), "brutus: no window context\n");
raise "fail:bad context";
}
draw = load Draw Draw->PATH;
tk = load Tk Tk->PATH;
tkclient = load Tkclient Tkclient->PATH;
dialog = load Dialog Dialog->PATH;
selectfile = load Selectfile Selectfile->PATH;
bufio = load Bufio Bufio->PATH;
plumbmsg = load Plumbmsg Plumbmsg->PATH;
if(plumbmsg->init(1, "edit", 1000) >= 0){
plumbed = 1;
workdir := load Workdir Workdir->PATH;
curdir = workdir->init();
workdir = nil;
}
tkclient->init();
dialog->init();
selectfile->init();
sys->pctl(Sys->NEWPGRP, nil); # so we can pass "exit" command to tkclient
file := "";
if(argv != nil)
argv = tl argv;
if(argv != nil)
file = hd argv;
central = chan of (ref File, string);
spawn control(ctxt);
<-central;
spawn brutus(ctxt, file);
}
# build menu button for dynamically generated menu
buttoncfg(label, enable: string): string
{
return "label .b."+label+" -text "+label + " " + enable +
";bind .b."+label+" <Button-1> {send cmd "+label+"}" +
";bind .b."+label+" <ButtonRelease-1> {}" +
";bind .b."+label+" <Motion-Button-1> {}" +
";bind .b."+label+" <Double-Button-1> {}" +
";bind .b."+label+" <Double-ButtonRelease-1> {}" +
";bind .b."+label+" <Enter> {.b."+label+" configure -background #EEEEEE}" +
";bind .b."+label+" <Leave> {.b."+label+" configure -background #DDDDDD}";
}
tkchans(t: ref Tk->Toplevel): (chan of string, chan of string, chan of string, chan of string, chan of string, chan of string, chan of string)
{
keys := chan of string;
tk->namechan(t, keys, "keys");
edit := chan of string;
tk->namechan(t, edit, "edit");
cmd := chan of string;
tk->namechan(t, cmd, "cmd");
but1 := chan of string;
tk->namechan(t, but1, "but1");
but2 := chan of string;
tk->namechan(t, but2, "but2");
but3 := chan of string;
tk->namechan(t, but3, "but3");
drag := chan of string;
tk->namechan(t, drag, "Wm_drag");
return (keys, edit, cmd, but1, but2, but3, drag);
}
control(ctxt: ref Context)
{
(t, titlectl) := tkclient->toplevel(ctxt, SETFONT, Name, Tkclient->Appl);
# f is not used to store anything, just to simplify interfaces
# shared by control and brutus
f := ref File (t, 1, 0, 0, "", 0, DEFFONTNAME, DEFSIZE, DEFTAG, nil, 0, 0, 0, nil);
tkcmds(t, menu_cfg);
tkcmd(t, "frame .b");
tkcmd(t, buttoncfg("File", ""));
tkcmds(t, control_cfg);
tkcmds(t, input_cfg);
files = array[1] of ref File;
files[0] = f;
(keys, edit, cmd, but1, but2, but3, drag) := tkchans(t);
tkcmd(t, ".ft.t mark set typingstart 1.0; .ft.t mark gravity typingstart left");
central <-= (nil, ""); # signal readiness
# spawn tkclient->wmctl(t, "task");
curfile: ref File;
plumbc := chan of (string, string);
spawn plumbproc(plumbc);
tkclient->startinput(t, "kbd"::"ptr"::nil);
tkclient->onscreen(t, nil);
tkclient->wmctl(t, "task");
for(;;) alt {
s := <-t.ctxt.kbd =>
tk->keyboard(t, s);
s := <-t.ctxt.ptr =>
tk->pointer(t, *s);
menu := <-t.ctxt.ctl or
menu = <-t.wreq or
menu = <-titlectl =>
if(menu == "exit"){
if(shutdown(ctxt, t)){
killplumb();
tkclient->wmctl(t, menu);
}
break;
}
# spawn tkclient->wmctl(t, menu);
tkclient->wmctl(t, menu);
ecmd := <-edit =>
editor(f, ecmd);
tkcmd(t, FOCUS);
c := <-cmd =>
(nil, s) := sys->tokenize(c, " ");
case hd s {
* =>
sys->print("unknown control cmd %s\n",c );
"File" =>
filemenu(t, 0, 0);
"new" =>
(name, ok, nil) := getfilename(ctxt, t, "file for new window", f.name, 1, 0, 0);
if(ok)
spawn brutus(ctxt, name);
"select" =>
n := int hd tl s;
if(n > len files)
break;
if(n > 0)
curfile = files[n];
tkcmd(files[n].tk, ". map; raise .; focus .ft.t");
"focus" =>
;
}
(file, action) := <-central =>
(nil, s) := sys->tokenize(action, " ");
case hd s {
* =>
sys->print("control unknown central command %s\n", action);
"new" =>
curfile = file;
nfiles := array[len files+1] of ref File;
nfiles[0:] = files;
files = nfiles;
nfiles = nil; # make sure references don't linger
files[len files-1] = file;
"name" =>
name := nameof(file);
index := 0;
for(i:=1; i<len files; i++)
if(files[i] == file){
index = i;
break;
}
if(index == 0)
sys->print("can't find file\n");
"focus" =>
if(file != f)
curfile = file;
"select" =>
n := int hd tl s;
if(n >= len files)
break;
if(n > 0)
curfile = files[n];
tkcmd(files[n].tk, ". map; raise .; focus .ft.t; update");
"exiting" =>
if(file == nil)
break;
if(file == curfile)
curfile = nil;
index := 0;
for(i:=1; i<len files; i++)
if(files[i] == file){
index = i;
break;
}
if(index == 0)
sys->print("can't find file\n");
else{
# make a new one rather than slice, to clean up references
nfiles := array[len files-1] of ref File;
for(i=0; i<index; i++)
nfiles[i] = files[i];
for(; i<len nfiles; i++)
nfiles[i] = files[i+1];
files = nfiles;
}
file = nil;
}
c := <-keys =>
char := typing(f, c);
if(curfile!=nil && char=='\n' && insat(t, "end"))
execute(t, curfile, tkcmd(t, ".ft.t get insert-1line insert"));
c := <-but1 =>
mousebut1(f, c);
c := <-but2 =>
mousebut2(f, c);
c := <-but3 =>
mousebut3(f, c);
c := <-drag =>
if(len c < 6 || c[0:5] != "path=")
break;
spawn brutus(ctxt, c[5:]);
(fname, addr) := <-plumbc =>
for(i:=1; i<len files; i++)
if(files[i].name == fname){
tkcmd(files[i].tk, ". map; raise .; focus .ft.t");
showaddr(files[i], addr);
break;
}
if(i == len files){
if(addr != "")
spawn brutus(ctxt, fname+":"+addr);
else
spawn brutus(ctxt, fname);
}
}
}
brutus(ctxt: ref Context, filename: string)
{
addr := "";
for(i:=len filename; --i>0; ){
if(filename[i] == ':'){
(ok, dir) := sys->stat(filename[0:i]);
if(ok >= 0){
addr = filename[i+1:];
filename = filename[0:i];
break;
}
}
}
(t, titlectl) := tkclient->toplevel(ctxt, SETFONT, Name, Tkclient->Appl);
f := ref File (t, 0, 0, 0, filename, 0, DEFFONTNAME, DEFSIZE, DEFTAG, nil, 0, 0, 0, nil);
f.configed = array[NTAG] of {* => 0};
tkcmds(t, menu_cfg);
tkcmd(t, "frame .b");
tkcmd(t, buttoncfg("File", ""));
tkcmd(t, buttoncfg("Ext", "-state disabled"));
tkcmds(t, brutus_cfg);
tkcmds(t, input_cfg);
# buttons work better when they grab the mouse
a := array[] of {".b.Tag", ".b.Applyfontnow", ".b.Applysizenow", ".b.Applyfontsizenow"};
for(i=0; i<len a; i++){
tkcmd(t, "bind "+a[i]+" <Button-1> +{grab set "+a[i]+"}");
tkcmd(t, "bind "+a[i]+" <ButtonRelease-1> +{grab release "+a[i]+"}");
}
(keys, edit, cmd, but1, but2, but3, drag) := tkchans(t);
configfont(f, "Heading");
configfont(f, "Title");
configfont(f, f.fonttag);
tkcmd(t, ".ft.t mark set typingstart 1.0; .ft.t mark gravity typingstart left");
tkcmd(t, "image create bitmap waiting -file cursor.wait");
central <-= (f, "new");
setfilename(f, filename);
if(filename != "")
if(loadfile(f, filename) < 0)
dialog->prompt(ctxt, t.image, "error -fg red",
"Open file",
sys->sprint("Can't read %s:\n%r", filename),
0, "Continue" :: nil);
else
showaddr(f, addr);
tkclient->onscreen(t, nil);
tkclient->startinput(t, "kbd"::"ptr"::nil);
for(;;) alt {
s := <-t.ctxt.kbd =>
tk->keyboard(t, s);
s := <-t.ctxt.ptr =>
tk->pointer(t, *s);
menu := <-t.ctxt.ctl or
menu = <-t.wreq or
menu = <-titlectl =>
case menu {
"exit" =>
if(f.dirty){
action := confirm(ctxt, t, nameof(f)+" is dirty", 1);
case action {
"cancel" =>
continue;
"exitclean" =>
if(dumpfile(f, f.name, f.fontsused) < 0)
continue;
break;
"exitdirty" =>
break;
}
}
central <-= (f, "exiting");
# this one tears down temporaries holding references to f
central <-= (nil, "exiting");
return;
"task" =>
tkcmd(t, ". unmap");
* =>
tkclient->wmctl(t, menu);
}
ecmd := <-edit =>
editor(f, ecmd);
tkcmd(t, FOCUS);
command := <-cmd =>
(nil, c) := sys->tokenize(command, " ");
case hd c {
* =>
sys->print("unknown command %s\n", command);
"File" =>
filemenu(t, 1, f.fontsok);
"Ext" =>
extmenu(t);
"new" =>
(name, ok, nil) := getfilename(ctxt, t, "file for new window", f.name, 1, 0, 0);
if(ok)
spawn brutus(ctxt, name);
"open" =>
if(f.dirty){
action := confirm(ctxt, t, nameof(f)+" is dirty", 1);
case action {
"cancel" =>
continue;
"exitclean" =>
if(dumpfile(f, f.name, f.fontsused) < 0)
continue;
break;
"exitdirty" =>
break;
}
}
(name, ok, nil) := getfilename(ctxt, t, "file for this window", f.name, 1, 0, 0);
if(ok && name!=""){
setfilename(f, name);
if(loadfile(f, name) < 0){
tkcmd(t, ".ft.t delete 1.0 end");
dialog->prompt(ctxt, t.image, "error -fg red",
"Open file",
sys->sprint("Can't open %s:\n%r", name),
0, "Continue"::nil);
}
}
"name" =>
(name, ok, nil) := getfilename(ctxt, t, "remembered file name", f.name, 1, 0, 0);
if(ok){
if(name != f.name){
setfilename(f, name);
dirty(f, 1);
}
}
"write" =>
(name, ok, sgml) := getfilename(ctxt, t, "file to write", f.name, 1, 1, f.fontsused);
if(ok && name!=""){
if(f.name == ""){
setfilename(f, name);
dirty(f, 1);
}
dumpfile(f, name, sgml);
}
"fonts" =>
if(f.fontsok==0 && f.fontsused==0){
action := confirm(ctxt, t, "Converting "+nameof(f)+" to SGML", 0);
case action {
"cancel" =>
continue;
"exitdirty" =>
usingfonts(f);
dirty(f, 1);
}
}
enablefonts(f, !f.fontsok);
"language" =>
if(lang == "")
lang = "Hebrew";
else
lang = "";
"addext" =>
ext := hd tl c;
(args, ok, nil) := getfilename(ctxt, t, "parameters for "+ext, "", 0, 0, 0);
if(ok){
tkcmd(t, "cursor -image waiting; update");
addextension(f, ext+" "+args, nil);
usingfonts(f);
dirty(f, 1);
tkcmd(t, "cursor -default; update");
}
"select" =>
central <-= (f, command);
"tag" =>
tageditor(ctxt, f);
tkcmd(t, FOCUS);
"font" =>
f.font = hd tl c;
tkcmd(t, ".b.Font configure -text "+f.font+";"+UPDATE);
f.fonttag = f.font+"."+string f.size;
configfont(f, f.fonttag);
if(changefont(f, f.font))
dirty(f, 1);
"size" =>
sz := hd tl c;
tkcmd(t, ".b.Size configure -text "+sz+"pt; update");
f.size = int sz;
f.fonttag = f.font+"."+string f.size;
configfont(f, f.fonttag);
if(changesize(f, string f.size))
dirty(f, 1);
"applyfont" =>
f.applyfont = int tkcmd(t, "variable Applyfont");
if(f.applyfont)
configfont(f, f.fonttag);
"applyfontnow" =>
if(changefont(f, f.font))
dirty(f, 1);
"applysizenow" =>
if(changesize(f, string f.size))
dirty(f, 1);
"applyfontsizenow" =>
if(changefontsize(f, f.fonttag))
dirty(f, 1);
"put" =>
dumpfile(f, f.name, f.fontsused);
"focus" =>
central <-= (f, "focus");
}
c := <-keys =>
typing(f, c);
c := <-but1 =>
mousebut1(f, c);
c := <-but2 =>
mousebut2(f, c);
c := <-but3 =>
mousebut3(f, c);
c := <-drag =>
if(len c < 6 || c[0:5] != "path=")
break;
spawn brutus(ctxt, c[5:]);
}
}
kbdremap(c: int) : (int, int)
{
tab: array of Remaptab;
dir := 1;
case lang{
"" =>
return (c, dir);
"Hebrew" =>
tab = hebrewtab;
dir = -1;
* =>
sys->print("unknown language %s\n", lang);
return (c, dir);
}
for(i:=0; i<len tab; i++)
if(c == tab[i].in)
return (tab[i].out, dir);
return (c, 1);
}
typing(f: ref File, c: string): int
{
t := f.tk;
char := c[1];
if(char == '\\')
char = c[2];
update := ";.ft.t see insert;"+UPDATE;
if(char != ESC)
cut(f, 1);
case char {
* =>
dir := 1;
if(c[1] != '\\') # safe character; remap it
(c[1], dir) = kbdremap(char);
s := ".ft.t insert insert "+c;
if(dir < 0)
s += ";.ft.t mark set insert insert-1c";
if(f.applyfont){
usingfonts(f);
s += f.fonttag;
}
tkcmd(t, s+update);
if(f.fontsused && f.applyfont==0){
# nasty goo to make sure we don't insert text without a font tag;
# must ask after the fact if default rules set a tag.
names := tkcmd(t, ".ft.t tag names insert-1chars");
if(!somefont(names))
tkcmd(t, ".ft.t tag add "+DEFTAG+" insert-1chars");
}
dirty(f, 1);
ESC =>
if(nullsel(t))
tkcmd(t, ".ft.t tag add sel typingstart insert;"+
".ft.t mark set typingstart insert");
else
cut(f, 1);
tkcmd(t, UPDATE);
BS =>
bs(f, "c");
BSL =>
bs(f, "l");
BSW =>
bs(f, "w");
}
return char;
}
bs(f: ref File, c: string)
{
if(!insat(f.tk, "1.0")){
tkcmd(f.tk, ".ft.t tkTextDelIns -"+c+";.ft.t see insert;"+UPDATE);
dirty(f, 1);
}
}
mousebut1(f: ref File, c: string)
{
f.button1 = (c == "pressed");
f.button3 = 0; # abort any pending button 3 action
tkcmd(f.tk, ".ft.t mark set typingstart insert");
}
mousebut2(f: ref File, c: string)
{
if(f.button1){
cut(f, 1);
tk->cmd(f.tk, UPDATE);
}else{
(nil, l) := sys->tokenize(c, " ");
x := int hd l - 50;
y := int hd tl l - int tk->cmd(f.tk, ".m yposition "+menuindex) - 10;
# tkcmd(f.tk, "focus .ft.t");
tkcmd(f.tk, ".m activate "+menuindex+"; .m post "+string x+" "+string y+
"; update");
}
}
mousebut3(f: ref File, c: string)
{
t := f.tk;
if(c == "pressed"){
f.button3 = 1;
if(f.button1){
paste(f);
tk->cmd(t, "update");
}
return;
}
if(!plumbed || f.button3==0 || f.button1!=0)
return;
f.button3 = 0;
# Plumb message triggered by release of button 3
(nil, l) := sys->tokenize(c, " ");
x := int hd tl l;
y := int hd tl tl l;
index := tk->cmd(t, ".ft.t index @"+string x+","+string y);
selindex := tk->cmd(t, ".ft.t tag ranges sel");
if(selindex != "")
insel := tk->cmd(t, ".ft.t compare sel.first <= "+index)=="1" &&
tk->cmd(t, ".ft.t compare sel.last >= "+index)=="1";
else
insel = 0;
attr := "";
if(insel)
text := tk->cmd(t, ".ft.t get sel.first sel.last");
else{
# have line with text in it
# now extract whitespace-bounded string around click
(nil, w) := sys->tokenize(index, ".");
charno := int hd tl w;
left := tk->cmd(t, ".ft.t index {"+index+" linestart}");
right := tk->cmd(t, ".ft.t index {"+index+" lineend}");
line := tk->cmd(t, ".ft.t get "+left+" "+right);
for(i:=charno; i>0; --i)
if(line[i-1]==' ' || line[i-1]=='\t')
break;
for(j:=charno; j<len line; j++)
if(line[j]==' ' || line[j]=='\t')
break;
text = line[i:j];
attr = "click="+string (charno-i);
}
msg := ref Msg(
"Brutus",
"",
directory(f),
"text",
attr,
array of byte text);
if(msg.send() < 0)
sys->fprint(sys->fildes(2), "brutus: plumbing write error: %r\n");
}
directory(f: ref File): string
{
for(i:=len f.name; --i>=0;)
if(f.name[i] == '/'){
if(i == 0)
i++;
return f.name[0:i];
}
return curdir;
}
enablefonts(f: ref File, enable: int)
{
for(i:=0; i<len fontbuts; i++)
tkcmd(f.tk, fontbuts[i] + " configure -state "+enabled[enable]);
tkcmd(f.tk, "update");
f.fontsok = enable;
}
filemenu(t: ref tk->Toplevel, buttons, fontsok: int)
{
tkcmd(t, "menu .b.Filemenu");
tkcmd(t, ".b.Filemenu add command -label New -command {send cmd new}");
if(buttons){
tkcmd(t, ".b.Filemenu add command -label Open -command {send cmd open}");
tkcmd(t, ".b.Filemenu add command -label Name -command {send cmd name}");
tkcmd(t, ".b.Filemenu add command -label Write -command {send cmd write}");
if(fontsok)
pre := "Dis";
else
pre = "En";
tkcmd(t, ".b.Filemenu add command -label {"
+pre+"able Fonts} -command {send cmd fonts}");
if(lang == "")
pre = "En";
else
pre = "Dis";
tkcmd(t, ".b.Filemenu add command -label {"
+pre+"able Hebrew} -command {send cmd language}");
}
tkcmd(t, ".b.Filemenu add command -label {["+Name+"]} -command {send cmd select 0}");
if(files != nil)
for(i:=1; i<len files; i++){
name := nameof(files[i]);
if(files[i].dirty)
name = "{' "+name+"}";
else
name = "{ "+name+"}";
tkcmd(t, ".b.Filemenu add command -label "+name+
" -command {send cmd select "+string i+"}");
}
tkcmd(t, "bind .b.Filemenu <Unmap> {destroy .b.Filemenu}");
x := tk->cmd(t, ".ft.scroll cget actx");
y := tk->cmd(t, ".ft.scroll cget acty");
tkcmd(t, ".b.Filemenu post "+x+" "+y+"; grab set .b.Filemenu; update");
}
extmenu(t: ref tk->Toplevel)
{
fd := sys->open(EXTDIR, Sys->OREAD);
if(fd == nil || ((n,dir):=sys->dirread(fd)).t0<=0){
sys->print("%s: can't find extension directory %s: %r\n", Name, EXTDIR);
return;
}
tkcmd(t, "menu .b.Extmenu");
for(i:=0; i<n; i++){
name := dir[i].name;
if(len name>4 && name[len name-4:]==".dis"){
name = name[0:len name-4];
tkcmd(t, ".b.Extmenu add command -label {Add "+name+
"} -command {send cmd addext "+name+"}");
}
}
tkcmd(t, "bind .b.Extmenu <Unmap> {destroy .b.Extmenu}");
x := tk->cmd(t, ".ft.scroll cget actx");
y := tk->cmd(t, ".ft.scroll cget acty");
tkcmd(t, ".b.Extmenu post "+x+" "+y+"; grab set .b.Extmenu; update");
}
basepath(file: string): (string, string)
{
for(i := len file-1; i >= 0; i--) {
if(file[i] == '/')
return (file[0:i], file[i+1:]);
}
return (".", file);
}
putbut(f: ref File)
{
state := enabled[f.dirty];
if(f.name != "")
tkcmd(f.tk, ".b.Put configure -state "+state+"; update");
}
dirty(f: ref File, nowdirty: int)
{
if(f.isctl)
return;
old := f.dirty;
f.dirty = nowdirty;
if(old != nowdirty){
setfilename(f, f.name);
putbut(f);
}
}
setfilename(f: ref File, name: string)
{
oldname := f.name;
f.name = name;
if(oldname=="" && name!="")
putbut(f);
name = Name + ": \"" +nameof(f)+ "\"";
if(f.dirty)
name += " (dirty)";
tkclient->settitle(f.tk, name);
tkcmd(f.tk, UPDATE);
central <-= (f, "name");
}
configfont(f: ref File, tag: string)
{
for(i:=0; i<NTAG; i++)
if(tag == tagname[i]){
if(f.configed[i] == 0){
tkcmd(f.tk, ".ft.t tag configure "+tag+" "+tagconfig[i]);
f.configed[i] = 1;
}
return;
}
sys->print("Brutus: can't configure font %s\n", tag);
}
insat(t: ref Tk->Toplevel, mark: string): int
{
return tkcmd(t, ".ft.t compare insert == "+mark) == "1";
}
isalnum(s: string): int
{
if(s == "")
return 0;
c := s[0];
if('a' <= c && c <= 'z')
return 1;
if('A' <= c && c <= 'Z')
return 1;
if('0' <= c && c <= '9')
return 1;
if(c == '_')
return 1;
if(c > 16rA0)
return 1;
return 0;
}
editor(f: ref File, ecmd: string)
{
case ecmd {
"cut" =>
menuindex = "0";
cut(f, 1);
"paste" =>
menuindex = "1";
paste(f);
"snarf" =>
menuindex = "2";
if(nullsel(f.tk))
return;
snarf(f);
"look" =>
menuindex = "3";
look(f);
}
tkcmd(f.tk, UPDATE);
}
nullsel(t: ref Tk->Toplevel): int
{
return tkcmd(t, ".ft.t tag ranges sel") == "";
}
cut(f: ref File, snarfit: int)
{
if(nullsel(f.tk))
return;
dirty(f, 1);
if(snarfit)
snarf(f);
# sometimes when clicking fast, selection and insert point can
# separate. the only time this really matters is when typing into
# a double-clicked selection. it's easy to fix here.
tkcmd(f.tk, ".ft.t mark set insert sel.first;.ft.t delete sel.first sel.last");
}
snarf(f: ref File)
{
# convert sel.first and sel.last to numeric forms because sgml()
# must clear selection to avoid <sel> tags in result.
(nil, sel) := sys->tokenize(tkcmd(f.tk, ".ft.t tag ranges sel"), " ");
snarftext = tkcmd(f.tk, ".ft.t get "+hd sel+" "+hd tl sel);
snarfsgml = sgml(f.tk, "-sgml", hd sel, hd tl sel);
tkclient->snarfput(snarftext);
}
paste(f: ref File)
{
# good question
snarftext = tkclient->snarfget();
if(snarftext == "" && (f.fontsused == 0 || snarfsgml == nil))
return;
cut(f, 0);
dirty(f, 1);
t := f.tk;
start := tkcmd(t, ".ft.t index insert");
if(f.fontsused == 0)
tkcmd(t, ".ft.t insert insert '"+snarftext);
else if(f.applyfont)
tkcmd(t, ".ft.t insert insert "+tk->quote(snarftext)+" "+f.fonttag);
else
insert(f, snarfsgml);
tkcmd(t, ".ft.t tag add sel "+start+" insert");
}
look(f: ref File)
{
t := f.tk;
(sel0, sel1) := word(t);
if(sel0 == nil)
return;
text := tkcmd(t, ".ft.t get "+sel0+" "+sel1);
if(text == nil)
return;
tkcmd(t, "cursor -image waiting; update");
search(nil, f, text, 0, 0);
tkcmd(t, "cursor -default; update");
}
# First time fonts are used explicitly, establish font tags for all extant text.
usingfonts(f: ref File)
{
if(f.fontsused)
return;
tkcmd(f.tk, ".ft.t tag add "+DEFTAG+" 1.0 end");
f.fontsused = 1;
}
word(t: ref Tk->Toplevel): (string, string)
{
start := "sel.first";
end := "sel.last";
if(nullsel(t)){
insert := tkcmd(t, ".ft.t index insert");
start = tkcmd(t, ".ft.t index {insert wordstart}");
if(insert == start){ # tk's definition of 'wordstart' is bogus
# if at beginning, tk->cmd will return !error and a0 will be false.
a0 := isalnum(tk->cmd(t, ".ft.t get insert-1chars"));
a1 := isalnum(tk->cmd(t, ".ft.t get insert"));
if(a0==0 && a1==0)
return (nil, nil);
if(a1 == 0)
start = tkcmd(t, ".ft.t index {insert-1chars wordstart}");
}
end = tkcmd(t, ".ft.t index {"+start+" wordend}");
if(start == end)
return (nil, nil);
}
return (start, end);
}
# Change the font associated with the selection
changefont(f: ref File, font: string): int
{
t := f.tk;
(sel0, sel1) := word(f.tk);
mod := 0;
if(sel0 == nil)
return mod;
usingfonts(f);
for(i:=0; i<NFONT; i++){
if(fontname[i] == font)
continue;
for(j:=0; j<NSIZE; j++){
tag := fontname[i]+"."+sizename[j];
start := sel0;
for(;;){
range := tkcmd(t, ".ft.t tag nextrange "+tag+" "+start+" "+sel1);
if(len range > 0 && range[0] == '!')
break;
(nil, tt) := sys->tokenize(range, " ");
if(tt == nil)
break;
tkcmd(t, ".ft.t tag remove "+tag+" "+hd tt+" "+hd tl tt);
fs := font+"."+sizename[j];
tkcmd(t, ".ft.t tag add "+fs+" "+hd tt+" "+hd tl tt);
configfont(f, fs);
start = hd tl tt;
mod = 1;
}
}
}
tkcmd(t, UPDATE);
return mod;
}
# See if tag list includes a font name
somefont(tag: string): int
{
(nil, tt) := sys->tokenize(tag, " ");
for(; tt!=nil; tt=tl tt)
for(i:=0; i<NFONT*NSIZE; i++){
if(tagname[i] == hd tt)
return 1;
}
return 0;
}
# Change the size associated with the selection
changesize(f: ref File, size: string): int
{
t := f.tk;
(sel0, sel1) := word(f.tk);
mod := 0;
if(sel0 == nil)
return mod;
usingfonts(f);
for(i:=0; i<NFONT; i++){
for(j:=0; j<NSIZE; j++){
if(sizename[j] == size)
continue;
tag := fontname[i]+"."+sizename[j];
start := sel0;
for(;;){
range := tkcmd(t, ".ft.t tag nextrange "+tag+" "+start+" "+sel1);
if(len range > 0 && range[0] == '!')
break;
(nil, tt) := sys->tokenize(range, " ");
if(tt == nil)
break;
tkcmd(t, ".ft.t tag remove "+tag+" "+hd tt+" "+hd tl tt);
fs := fontname[i]+"."+size;
tkcmd(t, ".ft.t tag add "+fs+" "+hd tt+" "+hd tl tt);
configfont(f, fs);
start = hd tl tt;
mod = 1;
}
}
}
tkcmd(t, UPDATE);
return mod;
}
# Change the font and size associated with the selection
changefontsize(f: ref File, newfontsize: string): int
{
t := f.tk;
(sel0, sel1) := word(f.tk);
if(sel0 == nil)
return 0;
usingfonts(f);
(nil, names) := sys->tokenize(tkcmd(t, ".ft.t tag names"), " ");
# clear old tags
tags := tagname[0:NFONT*NSIZE];
for(l:=names; l!=nil; l=tl l)
for(i:=0; i<len tags; i++)
if(tags[i] == hd l)
tkcmd(t, ".ft.t tag remove "+hd l+" "+sel0+" "+sel1);
tkcmd(t, ".ft.t tag add "+newfontsize+" "+sel0+" "+sel1+"; update");
return 1;
}
listtostring(l: list of string): string
{
s := "{";
while(l != nil){
if(len s == 1)
s += hd l;
else
s += " " + hd l;
l = tl l;
}
s += "}";
return s;
}
# splitl based on indices rather than slices. this version returns char
# position of the matching character.
splitl(str: string, i, j: int, pat: string): int
{
while(i < j){
c := str[i];
for(k:=len pat-1; k>=0; k--)
if(c == pat[k])
return i;
i++;
}
return i;
}
# splitstrl based on indices rather than slices. this version returns char
# position of the beginning of the matching string.
splitstrl(str: string, i, j: int, pat: string): int
{
l := len pat;
if(l == 0) # shouldn't happen, but be safe
return j;
first := pat[0];
while(i <= j-l){
# check first char for speed
if(str[i] == first){
for(k:=1; k<l && str[i+k]==pat[k]; k++)
;
if(k == l)
return i;
}
i++;
}
return j;
}
# place the text, as annotated by SGML tags, into document
# where indicated by insert mark
insert(f: ref File, sgml: string)
{
taglist: list of string;
t := f.tk;
usingfonts(f);
if(f.applyfont)
taglist = f.fonttag :: taglist;
tag := listtostring(taglist);
end := len sgml;
j: int;
for(i:=0; i<end; i=j){
j = splitl(sgml, i, end, "<&");
tt := tag;
if(tt=="" || tt=="{}")
tt = DEFTAG; # can happen e.g. when pasting plain text
if(j > i)
tkcmd(t, ".ft.t insert insert "+tk->quote(sgml[i:j])+" "+tt);
if(j < end)
case sgml[j] {
'&' =>
if(j+4<=end && sgml[j:j+4]=="<"){
tkcmd(t, ".ft.t insert insert "+"{<} "+tt);
j += 4;
}else{
tkcmd(t, ".ft.t insert insert {&} "+tt);
j += 1;
}
'<' =>
(nc, newtag, on) := tagstring(sgml, j, end);
if(nc < 0){
tkcmd(t, ".ft.t insert insert "+"{<} "+tt);
j += 1;
}else if(len newtag>9 && newtag[0:10]=="Extension "){
addextension(f, newtag[10:], taglist);
j += nc;
}else if(len newtag>9 && newtag[0:7]=="Window "){
repostextension(f, newtag[7:], taglist);
j += nc;
}else{
if(on){
taglist = newtag :: taglist;
configfont(f, newtag);
}else{
taglist = drop(taglist, newtag);
if(f.applyfont && hasfonts(taglist)==0)
taglist = f.fonttag :: taglist;
}
j += nc;
tag = listtostring(taglist);
}
}
}
}
drop(l: list of string, s: string): list of string
{
n: list of string;
while(l != nil){
if(s != hd l)
n = hd l :: n;
l = tl l;
}
return n;
}
extid := 0;
addextension(f: ref File, s: string, taglist: list of string)
{
for(i:=0; i<len s; i++)
if(s[i] == ' ')
break;
if(i == 0 || i == len s){
sys->print("Brutus: badly formed extension %s\n", s);
return;
}
modname := s[0:i];
s = s[i+1:];
mod: Brutusext;
for(el:=f.extensions; el!=nil; el=tl el)
if(modname == (hd el).modname){
mod = (hd el).mod;
break;
}
if(mod == nil){
file := modname;
if(i < 4 || file[i-4:i] != ".dis")
file += ".dis";
if(file[0] != '/')
file = "/dis/wm/brutus/" + file;
mod = load Brutusext file;
if(mod == nil){
sys->print("%s: can't load module %s: %r\n", Name, file);
return;
}
}
mkextension(f, mod, modname, s, taglist);
}
repostextension(f: ref File, tkname: string, taglist: list of string)
{
mod: Brutusext;
for(el:=f.extensions; el!=nil; el=tl el)
if(tkname == (hd el).tkname){
mod = (hd el).mod;
break;
}
if(mod == nil){
sys->print("Brutus: can't find extension widget %s: %r\n", tkname);
return;
}
mkextension(f, mod, (hd el).modname, (hd el).args, taglist);
}
mkextension(f: ref File, mod: Brutusext, modname, args: string, taglist: list of string)
{
t := f.tk;
name := ".ext"+string extid++;
mod->init(sys, draw, bufio, tk, tkclient);
err := mod->create(f.name, t, name, args);
if(err != ""){
sys->print("%s: can't create extension widget %s: %s\n", Name, modname, err);
return;
}
tkcmd(t, ".ft.t window create insert -window "+name);
while(taglist != nil){
tkcmd(t, ".ft.t tag add "+hd taglist+" "+name);
taglist = tl taglist;
}
f.extensions = ref Ext(name, modname, mod, args) :: f.extensions;
}
# rewrite <window .ext1> tags into <Extension module args>
extrewrite(f: ref File, sgml: string): string
{
if(f.extensions == nil)
return sgml;
new := "";
end := len sgml;
j: int;
for(i:=0; i<end; i=j){
j = splitstrl(sgml, i, end, "<Window ");
if(j > i)
new += sgml[i:j];
if(j < end){
j += 8;
for(k:=j; sgml[k]!='>' && k<end; k++)
;
tkname := sgml[j:k];
for(el:=f.extensions; el!=nil; el=tl el)
if((hd el).tkname == tkname)
break;
if(el == nil)
sys->print("%s: unrecognized extension %s\n", Name, tkname);
else{
e := hd el;
new += "<Extension "+e.modname+" "+e.args+">";
}
j = k+1; # skip '>'
}
}
return new;
}
hasfonts(l: list of string): int
{
for(i:=0; i<NFONT*NSIZE; i++)
for(ll:=l; ll!=nil; ll=tl ll)
if(hd ll == tagname[i])
return 1;
return 0;
}
# s[i] is known to be a less-than sign
tagstring(s: string, i, end: int): (int, string, int)
{
tag: string;
j := splitl(s, i+1, end, ">");
if(j==end || s[j]!='>')
return (-1, "", 0);
nc := (j-i)+1;
on := 1;
if(s[i+1] == '/'){
on = 0;
i++;
}
tag = s[i+1:j];
# NEED TO CHECK VALIDITY OF TAG
return (nc, tag, on);
}
sgml(t: ref Tk->Toplevel, flag, start, end: string): string
{
# turn off selection, to avoid getting that in output
sel := tkcmd(t, ".ft.t tag ranges sel");
if(sel != "")
tkcmd(t, ".ft.t tag remove sel "+sel);
s := tkcmd(t, ".ft.t dump "+flag+" "+start+" "+end);
if(sel != "")
tkcmd(t, ".ft.t tag add sel "+sel);
return s;
}
loadfile(f: ref File, file: string): int
{
f.size = DEFSIZE;
f.font = DEFFONTNAME;
f.fonttag = DEFTAG;
f.fontsused = 0;
enablefonts(f, 0);
t := f.tk;
tkcmd(t, ".b.Font configure -text "+f.font);
tkcmd(t, ".b.Size configure -text "+string f.size+"pt");
tkcmd(t, "cursor -image waiting; update");
r := loadfile1(f, file);
tkcmd(t, "cursor -default");
return r;
}
loadfile1(f: ref File, file: string): int
{
fd := bufio->open(file, Sys->OREAD);
if(fd == nil)
return -1;
(ok, dir) := sys->fstat(fd.fd);
if(ok < 0){
fd.close();
return -1;
}
l := int dir.length;
a := array[l] of byte;
n := fd.read(a, len a);
fd.close();
if(n != len a)
return -1;
t := f.tk;
tkcmd(t, ".ft.t delete 1.0 end");
if(len a>=7 && string a[0:7]=="<SGML>\n")
insert(f, string a[7:n]);
else
tkcmd(t, ".ft.t insert 1.0 '"+string a[0:n]);
dirty(f, 0);
tkcmd(t, ".ft.t mark set insert 1.0; update");
return 1;
}
dumpfile(f: ref File, file: string, sgml: int): int
{
tkcmd(f.tk, "cursor -image waiting");
r := dumpfile1(f, file, sgml);
tkcmd(f.tk, "cursor -default");
return r;
}
dumpfile1(f: ref File, file: string, sgml: int): int
{
if(writefile(f, file, sgml) < 0){
dialog->prompt(ctxt, f.tk.image, "error -fg red",
"Write file",
sys->sprint("Can't write %s:\n%r", file),
0, "Continue"::nil);
tkcmd(f.tk, FOCUS);
return -1;
}
return 1;
}
writefile(f: ref File, file: string, sgmlfmt: int): int
{
if(file == "")
return -1;
fd := bufio->create(file, Sys->OWRITE, 8r666);
if(fd == nil)
return -1;
t := f.tk;
flag := "";
if(sgmlfmt){
flag = "-sgml";
prefix := "<SGML>\n";
if(f.fontsused == 0)
prefix += "<"+DEFTAG+">";
x := array of byte prefix;
if(fd.write(x, len x) != len x){
fd.close();
return -1;
}
}
sgmltext := sgml(t, flag, "1.0", "end");
if(sgmlfmt)
sgmltext = extrewrite(f, sgmltext);
a := array of byte sgmltext;
if(fd.write(a, len a) != len a){
fd.close();
return -1;
}
if(sgmlfmt && f.fontsused==0){
suffix := array of byte ("</"+DEFTAG+">");
if(fd.write(suffix, len suffix) != len suffix){
fd.close();
return -1;
}
}
if(fd.flush() < 0){
fd.close();
return -1;
}
fd.close();
if(file == f.name){
dirty(f, sgmlfmt!=f.fontsused);
tkcmd(t, UPDATE);
}
return 1;
}
shutdown(s: ref Draw->Context, t: ref Tk->Toplevel): int
{
for(i:=1; i<len files; i++){
f := files[i];
if(f.dirty){
action := confirm(s, t, "file "+nameof(f)+" is dirty", 1);
case action {
"cancel" =>
return 0;
"exitclean" =>
if(dumpfile(f, f.name, f.fontsused) < 0)
return 0;
"exitdirty" =>
break;
}
}
}
return 1;
}
nameof(f: ref File): string
{
s := f.name;
if(s == "")
s = "(unnamed)";
return s;
}
tkcmd(t: ref Tk->Toplevel, s: string): string
{
res := tk->cmd(t, s);
if(len res > 0 && res[0] == '!')
sys->print("%s: tk error executing '%s': %s\n", Name, s, res);
return res;
}
confirm_cfg := array[] of {
"frame .f -borderwidth 2 -relief groove -padx 3 -pady 3",
"frame .f.f",
# "label .f.f.l -bitmap error -foreground red",
"label .f.f.l -text Warning:",
"label .f.f.m",
"button .f.exitclean -text { Write and Proceed } -width 17w -command {send cmd exitclean}",
"button .f.exitdirty -text { Proceed } -width 17w -command {send cmd exitdirty}",
"button .f.cancel -text { Cancel } -width 17w -command {send cmd cancel}",
"pack .f.f.l .f.f.m -side left",
"pack .f.f .f.exitclean .f.exitdirty .f.cancel -padx 10 -pady 10",
"pack .f",
};
widget(parent: ref Tk->Toplevel, ctxt: ref Draw->Context, cfg: array of string): ref Tk->Toplevel
{
x := int tk->cmd(parent, ". cget -x");
y := int tk->cmd(parent, ". cget -y");
where := sys->sprint("-x %d -y %d ", x+45, y+25);
(t,nil) := tkclient->toplevel(ctxt, where+SETFONT+" -borderwidth 2 -relief raised", "", tkclient->Plain);
tkcmds(t, cfg);
return t;
}
tkcmds(top: ref Tk->Toplevel, a: array of string)
{
for(i := 0; i < len a; i++)
v := tkcmd(top, a[i]);
}
confirm(ctxt: ref Draw->Context, parent: ref Tk->Toplevel, message: string, write: int): string
{
s := confirm1(ctxt, parent, message, write);
tkcmd(parent, FOCUS);
return s;
}
confirm1(ctxt: ref Draw->Context, parent: ref Tk->Toplevel, message: string, write: int): string
{
t := widget(parent, ctxt, confirm_cfg);
tkcmd(t, ".f.f.m configure -text '"+message);
if(write == 0)
tkcmd(t, "destroy .f.exitclean");
tkcmd(t, UPDATE);
tkclient->onscreen(t, "onscreen");
cmd := chan of string;
tk->namechan(t, cmd, "cmd");
tkclient->onscreen(t, "exact");
tkclient->startinput(t, "ptr"::nil);
for(;;) alt {
s := <-t.ctxt.ptr =>
tk->pointer(t, *s);
c := <-cmd =>
return c;
}
return <-cmd;
}
getfilename_cfg := array[] of {
"frame .f",
"label .f.Message",
"entry .f.Name -width 25w",
"checkbutton .f.SGML -text { Write SGML } -variable SGML",
"button .f.Ok -text { OK } -width 14w -command {send cmd ok}",
"button .f.Browse -text { Browse } -width 14w -command {send cmd browse}",
"button .f.Cancel -text { Cancel } -width 14w -command {send cmd cancel}",
"bind .f.Name <Control-j> {send cmd ok}",
"pack .f.Message .f.Name .f.SGML .f.Ok .f.Browse .f.Cancel -padx 10 -pady 10",
"pack .f",
"focus .f.Name",
};
getfilename(ctxt: ref Draw->Context, parent: ref Tk->Toplevel, message, name: string, browse, sgml, nowsgml: int): (string, int, int)
{
(s, i, issgml) := getfilename1(ctxt, parent, message, name, browse, sgml, nowsgml);
tkcmd(parent, FOCUS);
return (s, i, issgml);
}
getfilename1(ctxt: ref Draw->Context, parent: ref Tk->Toplevel, message, name: string, browse, sgml, nowsgml: int): (string, int, int)
{
t := widget(parent, ctxt, getfilename_cfg);
tkcmds(t, getfilename_cfg);
tkcmd(t, ".f.Message configure -text '"+message);
tk->cmd(t, ".f.Name insert 0 "+name);
if(browse == 0)
tkcmd(t, "destroy .f.Browse");
if(sgml == 0)
tkcmd(t, "destroy .f.SGML");
else if(nowsgml)
tkcmd(t, ".f.SGML select");
tkcmd(t, UPDATE);
cmd := chan of string;
tk->namechan(t, cmd, "cmd");
tkclient->onscreen(t, "exact");
tkclient->startinput(t, "kbd"::"ptr"::nil);
for(;;) alt {
s := <-t.ctxt.kbd =>
tk->keyboard(t, s);
s := <-t.ctxt.ptr =>
tk->pointer(t, *s);
c := <-cmd =>
case c {
"ok" =>
return (tkcmd(t, ".f.Name get"), 1, int tkcmd(t, "variable SGML"));
"cancel" =>
return ("", 0, 0);
"browse" =>
name = tkcmd(t, ".f.Name get");
(dir, path) := basepath(name);
pat := list of {
"* (All files)",
"*.sgml (SGML dump files)",
"*.html (Web source files)",
"*.tex (Latex source files)",
"*.[bm] (Limbo source files)"
};
path = selectfile->filename(ctxt, parent.image, message, pat, dir);
if(path != "")
name = path;
tk->cmd(t, ".f.Name delete 0 end; .f.Name insert 0 "+name+";focus .f.Name; update");
if(path != "")
return (name, 1, int tkcmd(t, "variable SGML"));
}
}
}
tageditor(ctxt: ref Draw->Context, f: ref File)
{
(start, end) := word(f.tk);
if(start == nil)
return;
cfg := array[100] of string;
i := 0;
cfg[i++] = "frame .f";
(nil, names) := sys->tokenize(tkcmd(f.tk, ".ft.t tag names "+start), " ");
pack := "pack";
set := array[NEXTRA] of int;
for(j:=0; j<NEXTRA; j++){
n := tagname[j+NFONT*NSIZE];
cfg[i++] = "checkbutton .f.c"+string j+" -variable c"+string j+
" -text {"+n+"} -command {send cmd "+string j+"} -anchor w";
pack += " .f.c"+string j;
set[j] = 0;
for(l:=names; l!=nil; l=tl l)
if(hd l == n){
cfg[i++] = ".f.c"+string j+" select";
set[j] = 1;
}
}
cfg[i++] = "button .f.Ok -text { OK } -width 6w -command {send cmd ok}";
cfg[i++] = "button .f.Cancel -text { Cancel } -width 6w -command {send cmd cancel}";
cfg[i++] = pack + " -padx 3 -pady 0 -fill x";
cfg[i++] = "pack .f.Ok .f.Cancel -padx 2 -pady 2 -side left";
cfg[i++] = "pack .f; grab set .f; update";
t := widget(f.tk, ctxt, cfg[0:i]);
cmd := chan of string;
tk->namechan(t, cmd, "cmd");
tkclient->onscreen(t, "exact");
tkclient->startinput(t, "kbd"::"ptr"::nil);
loop:
for(;;){
alt{
s := <-t.ctxt.kbd =>
tk->keyboard(t, s);
s := <-t.ctxt.ptr =>
tk->pointer(t, *s);
c := <-cmd =>
case c {
"ok" =>
break loop;
"cancel" =>
return;
* =>
j = int c;
set[j] = (tkcmd(t, "variable c"+c) == "1");
}
}
}
for(j=0; j<NEXTRA; j++){
s := tagname[j+NFONT*NSIZE];
if(set[j]){
configfont(f, s);
tkcmd(f.tk, ".ft.t tag add "+s+" "+start+" "+end);
}else
tkcmd(f.tk, ".ft.t tag remove "+s+" "+start+" "+end);
}
dirty(f, 1);
usingfonts(f);
tkcmd(f.tk, UPDATE);
}
plumbpid: int;
plumbproc(plumbc: chan of (string, string))
{
plumbpid = sys->pctl(0, nil);
for(;;){
msg := Msg.recv();
if(msg == nil){
sys->print("Brutus: can't read /chan/plumb.edit: %r\n");
plumbpid = 0;
return;
}
if(msg.kind != "text"){
sys->print("Brutus: can't interpret '%s' kind of message\n", msg.kind);
continue;
}
text := string msg.data;
n := len text;
addr := "";
for(j:=0; j<n; j++)
if(text[j] == ':'){
addr = text[j+1:];
break;
}
file := text[0:j];
if(len file>0 && file[0]!='/' && len msg.dir>0){
if(msg.dir[len msg.dir-1] == '/')
file = msg.dir+file;
else
file = msg.dir+"/"+file;
}
plumbc <-= (file, addr);
}
}
killplumb()
{
if(plumbed == 0)
return;
plumbmsg->shutdown();
if(plumbpid <= 0)
return;
fname := sys->sprint("#p/%d/ctl", plumbpid);
fd := sys->open(fname, sys->OWRITE);
if(fd != nil)
sys->write(fd, array of byte "kill\n", 8);
}
lastpat: string;
execute(cmdwin: ref Tk->Toplevel, f: ref File, cmd: string)
{
if(len cmd>1 && cmd[len cmd-1]=='\n')
cmd = cmd[0:len cmd-1];
if(cmd == "")
return;
if(cmd[0] == '/' || cmd[0]=='?'){
search(cmdwin, f, cmd[1:], cmd[0]=='?', 1);
return;
}
for(i:=0; i<len cmd; i++)
if(cmd[i]<'0' || '9'<cmd[i]){
sys->print("bad command %s\n", cmd);
return;
}
t := f.tk;
line := int cmd;
if(!nullsel(t))
tkcmd(t, NOSEL);
tkcmd(t, ".ft.t tag add sel "+string line+".0 {"+string line+".0 lineend+1char}");
tkcmd(t, ".ft.t mark set insert "+string line+".0; .ft.t see insert;update");
}
search(cmdwin: ref Tk->Toplevel, f: ref File, pat: string, backwards, uselast: int)
{
t := f.tk;
if(pat == nil)
pat = lastpat;
else if(uselast)
lastpat = pat;
if(pat == nil){
error(cmdwin, "no pattern");
return;
}
cmd := ".ft.t search ";
if(backwards)
cmd += "-backwards ";
p := "";
for(i:=0; i<len pat; i++){
if(pat[i]== '\\' || pat[i]=='{')
p[len p] = '\\';
p[len p] = pat[i];
}
cmd += "{"+p+"} ";
null := nullsel(t);
if(null)
cmd += "insert";
else if(backwards)
cmd += "sel.first";
else
cmd += "sel.last";
s := tk->cmd(t, cmd);
if(s == "")
error(cmdwin, "not found");
else{
if(!null)
tkcmd(t, NOSEL);
tkcmd(t, ".ft.t tag add sel "+s+" "+s+"+"+string len pat+"chars");
tkcmd(t, ".ft.t mark set insert "+s+";.ft.t see insert; update");
}
}
showaddr(f: ref File, addr: string)
{
if(addr=="")
return;
t := f.tk;
if(addr[0]=='#' || ('0'<=addr[0] && addr[0]<='9')){
# UGLY! just do line and character numbers until we get a
# decent command/address interface set up.
if(!nullsel(t))
tkcmd(t, NOSEL);
if(addr[0] == '#'){
addr = addr[1:];
tkcmd(t, ".ft.t mark set insert {1.0+"+addr+"char}; .ft.t see insert;update");
}else{
tkcmd(t, ".ft.t tag add sel "+addr+".0 {"+addr+".0 lineend+1char}");
tkcmd(t, ".ft.t mark set insert "+addr+".0; .ft.t see insert;update");
}
}
}
error(cmdwin: ref Tk->Toplevel, err: string)
{
if(cmdwin == nil)
return;
tkcmd(cmdwin, ".ft.t insert end '?"+err+"\n");
if(!nullsel(cmdwin))
tkcmd(cmdwin, NOSEL);
tkcmd(cmdwin, ".ft.t mark set insert end");
tkcmd(cmdwin, ".ft.t mark set typingstart end; update");
}