| 1 |
# SCCSid "$SunId$ LBL" |
| 2 |
# |
| 3 |
# Get help from a file, formatted like so: |
| 4 |
# |
| 5 |
# .category1.topic1 |
| 6 |
# |
| 7 |
# A bunch of unformatted text... |
| 8 |
# |
| 9 |
# .category2.topic2 |
| 10 |
# |
| 11 |
# etc. |
| 12 |
# |
| 13 |
|
| 14 |
# Calling program should define global help file directory as $helplib |
| 15 |
|
| 16 |
proc helplink {win file cat top} { # Create link for window(s) |
| 17 |
foreach w $win { |
| 18 |
bind $w <Control-Button-1> "gethelp $file $cat $top" |
| 19 |
} |
| 20 |
} |
| 21 |
|
| 22 |
set curhelp(file) {} |
| 23 |
|
| 24 |
proc gethelp {helpfile category topic} { # Open help window |
| 25 |
global curhelp helpfontwidth |
| 26 |
if {! [winfo exists .helpwin]} { # Set up window |
| 27 |
toplevel .helpwin -cursor top_left_arrow |
| 28 |
wm minsize .helpwin 500 400 |
| 29 |
wm iconbitmap .helpwin question |
| 30 |
frame .helpwin.but -geometry 150x400 |
| 31 |
pack .helpwin.but -side right -fill none -expand no |
| 32 |
label .helpwin.but.lab -textvariable curhelp(title) |
| 33 |
place .helpwin.but.lab -relx .1667 -rely 0 |
| 34 |
helplink .helpwin.but.lab help help intro |
| 35 |
menubutton .helpwin.but.catb -relief raised -height 1 \ |
| 36 |
-text Category -menu .helpwin.but.catb.m |
| 37 |
menu .helpwin.but.catb.m |
| 38 |
place .helpwin.but.catb -relx .1667 -rely .1100 \ |
| 39 |
-relwidth .5000 -relheight .0600 |
| 40 |
helplink .helpwin.but.catb help help category |
| 41 |
menubutton .helpwin.but.topb -relief raised -height 1 \ |
| 42 |
-text Topic -menu .helpwin.but.topb.m |
| 43 |
menu .helpwin.but.topb.m |
| 44 |
place .helpwin.but.topb -relx .1667 -rely .2200 \ |
| 45 |
-relwidth .5000 -relheight .0600 |
| 46 |
helplink .helpwin.but.topb help help topic |
| 47 |
button .helpwin.but.srchb -text Grep -relief raised \ |
| 48 |
-height 1 -command {helpsearch $curhelp(search)} |
| 49 |
place .helpwin.but.srchb -relx .1667 -rely .3500 \ |
| 50 |
-relwidth .5000 -relheight .0600 |
| 51 |
helplink .helpwin.but.srchb help navigate search |
| 52 |
entry .helpwin.but.srche -relief sunken -insertofftime 0 \ |
| 53 |
-textvariable curhelp(search) |
| 54 |
place .helpwin.but.srche -relx .1667 -rely .4200 \ |
| 55 |
-relwidth .6667 -relheight .0600 |
| 56 |
bind .helpwin.but.srche <Return> {set curhelp(msg) {} |
| 57 |
helpupdate} |
| 58 |
helplink .helpwin.but.srche help navigate search |
| 59 |
label .helpwin.but.msg -textvariable curhelp(msg) |
| 60 |
place .helpwin.but.msg -relx .1667 -rely .4800 |
| 61 |
button .helpwin.but.next -text Next -relief raised -height 1 \ |
| 62 |
-command {eval helphist new $curhelp(next)} |
| 63 |
place .helpwin.but.next -relx .1667 -rely .7500 \ |
| 64 |
-relwidth .5 -relheight .0600 |
| 65 |
helplink .helpwin.but.next help navigate next |
| 66 |
button .helpwin.but.back -text Back -relief raised -height 1 \ |
| 67 |
-command "helphist back" |
| 68 |
place .helpwin.but.back -relx .1667 -rely .6500 \ |
| 69 |
-relwidth .5 -relheight .0600 |
| 70 |
helplink .helpwin.but.back help navigate back |
| 71 |
button .helpwin.but.forw -text Forward -relief raised -height 1\ |
| 72 |
-command "helphist forward" |
| 73 |
place .helpwin.but.forw -relx .1667 -rely .5500 \ |
| 74 |
-relwidth .5 -relheight .0600 |
| 75 |
helplink .helpwin.but.forw help navigate forward |
| 76 |
button .helpwin.but.done -text Done -relief raised -height 1 \ |
| 77 |
-command "destroy .helpwin ; helpopen {}" |
| 78 |
place .helpwin.but.done -relx .1667 -rely .9000 \ |
| 79 |
-relwidth .5 -relheight .0600 |
| 80 |
helplink .helpwin.but.done help help done |
| 81 |
text .helpwin.txt -wrap word -width 48 -height 20 -bd 2 \ |
| 82 |
-yscrollcommand ".helpwin.sb set" -relief raised \ |
| 83 |
-font -*-courier-medium-r-normal--14-*-*-*-*-*-iso8859-1 |
| 84 |
.helpwin.txt tag configure highlight \ |
| 85 |
-font -*-courier-bold-r-normal--14-*-*-*-*-*-iso8859-1 |
| 86 |
set helpfontwidth 9 |
| 87 |
scrollbar .helpwin.sb -relief flat \ |
| 88 |
-command ".helpwin.txt yview" |
| 89 |
pack .helpwin.sb -side right -fill y |
| 90 |
pack .helpwin.txt -expand yes -fill both |
| 91 |
helplink .helpwin.sb help helpwin scroll |
| 92 |
helplink .helpwin.txt help helpwin intro |
| 93 |
tkwait visibility .helpwin |
| 94 |
} elseif {! [winfo ismapped .helpwin]} { # map window |
| 95 |
wm deiconify .helpwin |
| 96 |
} else { # raise window |
| 97 |
raise .helpwin |
| 98 |
} |
| 99 |
focus .helpwin.but.srche |
| 100 |
helpopen $helpfile |
| 101 |
helphist new $category $topic |
| 102 |
} |
| 103 |
|
| 104 |
proc helpopen fname { # open the named help file |
| 105 |
global curhelp helpindex helplib |
| 106 |
if {"$fname" == "$curhelp(file)"} {return} |
| 107 |
if {"$curhelp(file)" != {}} { |
| 108 |
close $curhelp(fid) |
| 109 |
unset curhelp helpindex |
| 110 |
} |
| 111 |
if {[set curhelp(file) $fname] == {}} {return} |
| 112 |
# Complete file name as required |
| 113 |
if {! [info exists helplib]} { |
| 114 |
set helplib /usr/local/lib/tk/help |
| 115 |
} |
| 116 |
if {"[file rootname $fname]" == "$fname"} { |
| 117 |
append fname .hlp |
| 118 |
} |
| 119 |
if {! [string match {[~/.]*} $fname]} { |
| 120 |
set fname $helplib/$fname |
| 121 |
} |
| 122 |
wm title .helpwin $fname |
| 123 |
set curhelp(title) "[string toupper\ |
| 124 |
[file rootname [file tail $fname]]] HELP" |
| 125 |
set ifile [file rootname $fname].ndx |
| 126 |
wm iconname .helpwin [string tolower $curhelp(title)] |
| 127 |
.helpwin.txt configure -state normal |
| 128 |
.helpwin.txt delete 1.0 end |
| 129 |
.helpwin.txt insert end "Loading $fname..." |
| 130 |
update |
| 131 |
set curhelp(fid) [open $fname r] |
| 132 |
if {! [file exists $ifile] || |
| 133 |
[file mtime $fname] > [file mtime $ifile]} { |
| 134 |
set curhelp(catlist) {} |
| 135 |
while {[gets $curhelp(fid) li] >= 0} { |
| 136 |
if [regexp -nocase {^\.([A-Z][A-Z0-9]*)\.([A-Z][A-Z0-9]*)$} \ |
| 137 |
$li dummy cat top] { |
| 138 |
lappend helpindex([string toupper $cat]) $top |
| 139 |
set helpindex([string toupper $cat,$top]) \ |
| 140 |
[tell $curhelp(fid)] |
| 141 |
if {[lsearch -exact $curhelp(catlist) $cat] < 0} { |
| 142 |
lappend curhelp(catlist) $cat |
| 143 |
} |
| 144 |
} |
| 145 |
} |
| 146 |
if {! [catch {set fi [open $ifile w]}]} { |
| 147 |
writevars $fi {curhelp(catlist) helpindex} |
| 148 |
close $fi |
| 149 |
catch {exec chmod 666 $ifile} |
| 150 |
} |
| 151 |
} else { |
| 152 |
source $ifile |
| 153 |
} |
| 154 |
.helpwin.but.catb.m delete 0 last |
| 155 |
foreach cat $curhelp(catlist) { |
| 156 |
.helpwin.but.catb.m add command -label $cat \ |
| 157 |
-command "helphist new $cat intro" |
| 158 |
} |
| 159 |
set curhelp(category) None |
| 160 |
.helpwin.but.topb.m delete 0 last |
| 161 |
set curhelp(topic) None |
| 162 |
set curhelp(next) {} |
| 163 |
helphist clear |
| 164 |
} |
| 165 |
|
| 166 |
proc helpgoto {cat top} { # find selected category and topic |
| 167 |
global curhelp helpindex |
| 168 |
# Capitalize "just in case" |
| 169 |
set cat [string toupper $cat] |
| 170 |
set top [string toupper $top] |
| 171 |
# Change topic menu if category is changed |
| 172 |
set curhelp(topic) $top |
| 173 |
if {"$cat" != "$curhelp(category)"} { |
| 174 |
set curhelp(category) $cat |
| 175 |
.helpwin.but.topb.m delete 0 last |
| 176 |
foreach top $helpindex($cat) { |
| 177 |
.helpwin.but.topb.m add command -label $top \ |
| 178 |
-command "helphist new \$curhelp(category) $top" |
| 179 |
} |
| 180 |
} |
| 181 |
helpupdate |
| 182 |
} |
| 183 |
|
| 184 |
proc helpupdate {} { # update help text window |
| 185 |
global curhelp helpindex helpfontwidth |
| 186 |
# Print category and topic |
| 187 |
set linelen [expr "[winfo width .helpwin.txt] / $helpfontwidth - 1"] |
| 188 |
.helpwin.txt configure -state normal |
| 189 |
.helpwin.txt delete 1.0 end |
| 190 |
set titlen [expr [string length $curhelp(category)] + \ |
| 191 |
[string length $curhelp(topic)] + 1] |
| 192 |
for {set i [expr ($linelen - $titlen)/2]} {[incr i -1] >= 0} {} { |
| 193 |
.helpwin.txt insert end { } |
| 194 |
} |
| 195 |
.helpwin.txt insert end "$curhelp(category) $curhelp(topic)\n" |
| 196 |
.helpwin.txt tag add highlight "1.0 lineend - $titlen c" "1.0 lineend" |
| 197 |
# Search for it in file |
| 198 |
if {"$curhelp(category) $curhelp(topic)" != |
| 199 |
"[string toupper $curhelp(next)]"} { |
| 200 |
if [info exists helpindex($curhelp(category),$curhelp(topic))] { |
| 201 |
seek $curhelp(fid) $helpindex($curhelp(category),$curhelp(topic)) |
| 202 |
} else { |
| 203 |
.helpwin.txt insert end "\nNo such help topic." |
| 204 |
.helpwin.txt configure -state disabled |
| 205 |
return ".$curhelp(category).$curhelp(topic) not found\ |
| 206 |
in $curhelp(file)" |
| 207 |
} |
| 208 |
} |
| 209 |
# Load help text into our window |
| 210 |
set linepos 0 |
| 211 |
while {[set ll [gets $curhelp(fid) li]] >= 0 && ! [regexp -nocase \ |
| 212 |
{^\.([A-Z][A-Z0-9]*)\.([A-Z][A-Z0-9]*)$} \ |
| 213 |
$li dummy cat top]} { |
| 214 |
if {$ll == 0} { # paragraph |
| 215 |
if $linepos { |
| 216 |
.helpwin.txt insert end "\n\n" |
| 217 |
set linepos 0 |
| 218 |
} else { |
| 219 |
.helpwin.txt insert end "\n" |
| 220 |
} |
| 221 |
} else { # line |
| 222 |
.helpwin.txt insert end $li |
| 223 |
incr linepos $ll |
| 224 |
.helpwin.txt insert end { } |
| 225 |
incr linepos |
| 226 |
# Highlight search string match |
| 227 |
if {"$curhelp(search)" != {}} { |
| 228 |
if [regexp -nocase -indices \ |
| 229 |
$curhelp(search) $li mi] { |
| 230 |
.helpwin.txt tag add highlight\ |
| 231 |
"end - 1 c - $ll c\ |
| 232 |
+ [lindex $mi 0] c"\ |
| 233 |
"end - $ll c\ |
| 234 |
+ [lindex $mi 1] c" |
| 235 |
} |
| 236 |
} |
| 237 |
# Add extra space at the end of a sentence |
| 238 |
if [regexp {[.?!:][)"']?$} $li] { |
| 239 |
.helpwin.txt insert end { } |
| 240 |
incr linepos |
| 241 |
} |
| 242 |
} |
| 243 |
} |
| 244 |
# Highlight next category and topic |
| 245 |
if {$ll > 0} { |
| 246 |
.helpwin.txt insert end "Next: $cat $top" |
| 247 |
.helpwin.txt tag add highlight "end linestart" end |
| 248 |
set curhelp(next) "$cat $top" |
| 249 |
.helpwin.but.next configure -state normal |
| 250 |
} else { |
| 251 |
.helpwin.but.next configure -state disabled |
| 252 |
} |
| 253 |
.helpwin.txt configure -state disabled |
| 254 |
return {} |
| 255 |
} |
| 256 |
|
| 257 |
proc helphist {op args} { # access help history list |
| 258 |
global curhelp |
| 259 |
switch -exact $op { |
| 260 |
clear { |
| 261 |
set curhelp(histlst) {} |
| 262 |
set curhelp(histpos) 0 |
| 263 |
set gotoit 0 |
| 264 |
} |
| 265 |
new { |
| 266 |
set curhelp(histpos) \ |
| 267 |
[expr [llength $curhelp(histlst)] - 1] |
| 268 |
if {"[string toupper [lindex $curhelp(histlst) \ |
| 269 |
$curhelp(histpos)]]" |
| 270 |
!= "[string toupper $args]"} { |
| 271 |
lappend curhelp(histlst) $args |
| 272 |
incr curhelp(histpos) |
| 273 |
} |
| 274 |
set gotoit 1 |
| 275 |
} |
| 276 |
append { |
| 277 |
lappend curhelp(histlst) $args |
| 278 |
set gotoit 0 |
| 279 |
} |
| 280 |
back { |
| 281 |
incr curhelp(histpos) -1 |
| 282 |
set gotoit 1 |
| 283 |
} |
| 284 |
forward { |
| 285 |
incr curhelp(histpos) 1 |
| 286 |
set gotoit 1 |
| 287 |
} |
| 288 |
} |
| 289 |
if {$curhelp(histpos) + 1 >= [llength $curhelp(histlst)]} { |
| 290 |
.helpwin.but.forw configure -state disabled |
| 291 |
} else { |
| 292 |
.helpwin.but.forw configure -state normal |
| 293 |
} |
| 294 |
if {$curhelp(histpos) <= 0} { |
| 295 |
.helpwin.but.back configure -state disabled |
| 296 |
} else { |
| 297 |
.helpwin.but.back configure -state normal |
| 298 |
} |
| 299 |
if $gotoit { |
| 300 |
eval helpgoto [lindex $curhelp(histlst) $curhelp(histpos)] |
| 301 |
} |
| 302 |
} |
| 303 |
|
| 304 |
proc helpsearch word { # search for occurances of the given word |
| 305 |
global curhelp helpindex |
| 306 |
if {"$curhelp(search)" == {}} { |
| 307 |
set curhelp(msg) "No pattern." |
| 308 |
return 0 |
| 309 |
} |
| 310 |
set nmatches 0 |
| 311 |
set cat [lindex $curhelp(catlist) 0] |
| 312 |
set top [lindex $helpindex([string toupper $cat]) 0] |
| 313 |
set startpos [tell $curhelp(fid)] |
| 314 |
seek $curhelp(fid) $helpindex([string toupper $cat,$top]) |
| 315 |
set foundmatch 0 |
| 316 |
while {[gets $curhelp(fid) li] >= 0} { |
| 317 |
if [regexp -nocase {^\.([A-Z][A-Z0-9]*)\.([A-Z][A-Z0-9]*)$} \ |
| 318 |
$li dummy cat top] { |
| 319 |
set foundmatch 0 |
| 320 |
} elseif {! $foundmatch && \ |
| 321 |
[regexp -nocase $curhelp(search) $li]} { |
| 322 |
set foundmatch 1 |
| 323 |
if $nmatches { |
| 324 |
helphist append $cat $top |
| 325 |
} else { |
| 326 |
helphist new $cat $top |
| 327 |
} |
| 328 |
incr nmatches |
| 329 |
} |
| 330 |
} |
| 331 |
if $nmatches { |
| 332 |
set curhelp(msg) "$nmatches topic(s)." |
| 333 |
} else { |
| 334 |
set curhelp(msg) "Not found." |
| 335 |
} |
| 336 |
seek $curhelp(fid) $startpos |
| 337 |
return $nmatches |
| 338 |
} |
