1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351
|
#
# This script implements the "hv" application. Type "hv FILE" to
# view FILE as HTML.
#
# This application is used for testing the HTML widget. It can
# also server as an example of how to use the HTML widget.
#
# @(#) $Id: hv.tcl,v 1.1.1.1 2002/06/20 21:19:32 joye Exp $
#
wm title . {HTML File Viewer}
wm iconname . {HV}
# Make sure the html widget is loaded into
# our interpreter
#
if {[info command html]==""} {
if {![package require tkhtml]} return
foreach f {
./tkhtml.so
/usr/lib/tkhtml.so
/usr/local/lib/tkhtml.so
./tkhtml.dll
} {
if {[file exists $f]} {
if {[catch {load $f Tkhtml}]==0} break
}
}
}
# The HtmlTraceMask only works if the widget was compiled with
# the -DDEBUG=1 command-line option. "file" is the name of the
# first HTML file to be loaded.
#
set HtmlTraceMask 0
set file {}
foreach a $argv {
if {[regexp {^debug=} $a]} {
scan $a "debug=0x%x" HtmlTraceMask
} else {
set file $a
}
}
# These images are used in place of GIFs or of form elements
#
image create photo biggray -data {
R0lGODdhPAA+APAAALi4uAAAACwAAAAAPAA+AAACQISPqcvtD6OctNqLs968+w+G4kiW5omm
6sq27gvH8kzX9o3n+s73/g8MCofEovGITCqXzKbzCY1Kp9Sq9YrNFgsAO///
}
image create photo smgray -data {
R0lGODdhOAAYAPAAALi4uAAAACwAAAAAOAAYAAACI4SPqcvtD6OctNqLs968+w+G4kiW5omm
6sq27gvH8kzX9m0VADv/
}
image create photo nogifbig -data {
R0lGODdhJAAkAPEAAACQkADQ0PgAAAAAACwAAAAAJAAkAAACmISPqcsQD6OcdJqKM71PeK15
AsSJH0iZY1CqqKSurfsGsex08XuTuU7L9HywHWZILAaVJssvgoREk5PolFo1XrHZ29IZ8oo0
HKEYVDYbyc/jFhz2otvdcyZdF68qeKh2DZd3AtS0QWcDSDgWKJXY+MXS9qY4+JA2+Vho+YPp
FzSjiTIEWslDQ1rDhPOY2sXVOgeb2kBbu1AAADv/
}
image create photo nogifsm -data {
R0lGODdhEAAQAPEAAACQkADQ0PgAAAAAACwAAAAAEAAQAAACNISPacHtD4IQz80QJ60as25d
3idKZdR0IIOm2ta0Lhw/Lz2S1JqvK8ozbTKlEIVYceWSjwIAO///
}
# Construct the main window
#
frame .mbar -bd 2 -relief raised
pack .mbar -side top -fill x
menubutton .mbar.file -text File -underline 0 -menu .mbar.file.m
pack .mbar.file -side left -padx 5
set m [menu .mbar.file.m]
$m add command -label Open -underline 0 -command Load
$m add command -label Refresh -underline 0 -command Refresh
$m add separator
$m add command -label Exit -underline 1 -command exit
menubutton .mbar.view -text View -underline 0 -menu .mbar.view.m
pack .mbar.view -side left -padx 5
set m [menu .mbar.view.m]
set underlineHyper 0
$m add checkbutton -label {Underline Hyperlinks} -variable underlineHyper
trace variable underlineHyper w ChangeUnderline
proc ChangeUnderline args {
global underlineHyper
.h.h config -underlinehyperlinks $underlineHyper
}
set showTableStruct 0
$m add checkbutton -label {Show Table Structure} -variable showTableStruct
trace variable showTableStruct w ShowTableStruct
proc ShowTableStruct args {
global showTableStruct HtmlTraceMask
if {$showTableStruct} {
set HtmlTraceMask [expr {$HtmlTraceMask|0x8}]
.h.h config -tablerelief flat
} else {
set HtmlTraceMask [expr {$HtmlTraceMask&~0x8}]
.h.h config -tablerelief raised
}
Refresh
}
set showImages 1
$m add checkbutton -label {Show Images} -variable showImages
trace variable showImages w Refresh
# Construct the main HTML viewer
#
frame .h
pack .h -side top -fill both -expand 1
html .h.h \
-yscrollcommand {.h.vsb set} \
-xscrollcommand {.f2.hsb set} \
-padx 5 \
-pady 9 \
-formcommand FormCmd \
-imagecommand ImageCmd \
-scriptcommand ScriptCmd \
-appletcommand AppletCmd \
-underlinehyperlinks 0 \
-bg white -tablerelief raised
# If the tracemask is not 0, then draw the outline of all
# tables as a blank line, not a 3D relief.
#
if {$HtmlTraceMask} {
.h.h config -tablerelief flat
}
# A font chooser routine.
#
# .h.h config -fontcommand pickFont
proc pickFont {size attrs} {
puts "FontCmd: $size $attrs"
set a [expr {-1<[lsearch $attrs fixed]?{courier}:{charter}}]
set b [expr {-1<[lsearch $attrs italic]?{italic}:{roman}}]
set c [expr {-1<[lsearch $attrs bold]?{bold}:{normal}}]
set d [expr {int(12*pow(1.2,$size-4))}]
list $a $d $b $c
}
# This routine is called for each form element
#
proc FormCmd {n cmd args} {
# puts "FormCmd: $n $cmd $args"
switch $cmd {
select -
textarea -
input {
set w [lindex $args 0]
label $w -image nogifsm
}
}
}
# This routine is called for every <IMG> markup
#
# proc ImageCmd {args} {
# puts "image: $args"
# set fn [lindex $args 0]
# if {[catch {image create photo -file $fn} img]} {
# return nogifsm
# } else {
# global Images
# set Images($img) 1
# return $img
# }
#}
proc ImageCmd {args} {
global OldImages Images showImages
if {!$showImages} {
return smgray
}
set fn [lindex $args 0]
if {[info exists OldImages($fn)]} {
set Images($fn) $OldImages($fn)
unset OldImages($fn)
return $Images($fn)
}
if {[catch {image create photo -file $fn} img]} {
return smgray
}
if {[image width $img]*[image height $img]>20000} {
global BigImages
set b [image create photo -width [image width $img] \
-height [image height $img]]
set BigImages($b) $img
set img $b
after idle "MoveBigImage $b"
}
set Images($fn) $img
return $img
}
proc MoveBigImage b {
global BigImages
if {![info exists BigImages($b)]} return
$b copy $BigImages($b)
image delete $BigImages($b)
unset BigImages($b)
update
}
# This routine is called for every <SCRIPT> markup
#
proc ScriptCmd {args} {
# puts "ScriptCmd: $args"
}
# This routine is called for every <APPLET> markup
#
proc AppletCmd {w arglist} {
# puts "AppletCmd: w=$w arglist=$arglist"
label $w -text "The Applet $w" -bd 2 -relief raised
}
# This procedure is called when the user clicks on a hyperlink.
# See the "bind .h.h.x" below for the binding that invokes this
# procedure
#
proc HrefBinding {x y} {
set new [.h.h href $x $y]
# puts "link to [list $new]"; return
if {$new!=""} {
global LastFile
set pattern $LastFile#
set len [string length $pattern]
incr len -1
if {[string range $new 0 $len]==$pattern} {
incr len
.h.h yview [string range $new $len end]
} else {
LoadFile $new
}
}
}
bind .h.h.x <1> {HrefBinding %x %y}
# Pack the HTML widget into the main screen.
#
pack .h.h -side left -fill both -expand 1
scrollbar .h.vsb -orient vertical -command {.h.h yview}
pack .h.vsb -side left -fill y
frame .f2
pack .f2 -side top -fill x
frame .f2.sp -width [winfo reqwidth .h.vsb] -bd 2 -relief raised
pack .f2.sp -side right -fill y
scrollbar .f2.hsb -orient horizontal -command {.h.h xview}
pack .f2.hsb -side top -fill x
# This procedure is called when the user selects the File/Open
# menu option.
#
set lastDir [pwd]
proc Load {} {
set filetypes {
{{Html Files} {.html .htm}}
{{All Files} *}
}
global lastDir htmltext
set f [tk_getOpenFile -initialdir $lastDir -filetypes $filetypes]
if {$f!=""} {
LoadFile $f
set lastDir [file dirname $f]
}
}
# Clear the screen.
#
# Clear the screen.
#
proc Clear {} {
global Images OldImages hotkey
if {[winfo exists .fs.h]} {set w .fs.h} {set w .h.h}
$w clear
catch {unset hotkey}
ClearBigImages
ClearOldImages
foreach fn [array names Images] {
set OldImages($fn) $Images($fn)
}
catch {unset Images}
}
proc ClearOldImages {} {
global OldImages
foreach fn [array names OldImages] {
image delete $OldImages($fn)
}
catch {unset OldImages}
}
proc ClearBigImages {} {
global BigImages
foreach b [array names BigImages] {
image delete $BigImages($b)
}
catch {unset BigImages}
}
# Read a file
#
proc ReadFile {name} {
if {[catch {open $name r} fp]} {
tk_messageBox -icon error -message $fp -type ok
return {}
} else {
fconfigure $fp -translation binary
set r [read $fp [file size $name]]
close $fp
return $r
}
}
# Load a file into the HTML widget
#
proc LoadFile {name} {
set html [ReadFile $name]
if {$html==""} return
Clear
global LastFile
set LastFile $name
.h.h config -base $name
.h.h parse $html
ClearOldImages
}
# Refresh the current file.
#
proc Refresh {args} {
global LastFile
if {![info exists LastFile]} return
LoadFile $LastFile
}
# If an arguent was specified, read it into the HTML widget.
#
update
if {$file!=""} {
LoadFile $file
}
# This binding changes the cursor when the mouse move over
# top of a hyperlink.
#
bind HtmlClip <Motion> {
set parent [winfo parent %W]
set url [$parent href %x %y]
if {[string length $url] > 0} {
$parent configure -cursor hand2
} else {
$parent configure -cursor {}
}
}
|