+
+proc build_encoding_submenu {parent grp cmd} {
+ global used_encodings
+
+ set mid [lindex $grp 0]
+ set gname [mc [lindex $grp 1]]
+
+ set smenu {}
+ foreach subset [lrange $grp 2 end] {
+ set name [mc [lindex $subset 0]]
+
+ foreach enc [lrange $subset 1 end] {
+ set tcl_enc [tcl_encoding $enc]
+ if {$tcl_enc eq {}} continue
+
+ if {$smenu eq {}} {
+ if {$mid eq {}} {
+ set smenu $parent
+ } else {
+ set smenu "$parent.$mid"
+ menu $smenu
+ $parent add cascade \
+ -label $gname \
+ -menu $smenu
+ }
+ }
+
+ if {$name ne {}} {
+ set lbl "$name ($enc)"
+ } else {
+ set lbl $enc
+ }
+ $smenu add command \
+ -label $lbl \
+ -command [concat $cmd [list $tcl_enc]]
+
+ lappend used_encodings $tcl_enc
+ }
+ }
+}
+
+proc popup_btn_menu {m b} {
+ tk_popup $m [winfo pointerx $b] [winfo pointery $b]
+}
+
+proc build_encoding_menu {emenu cmd {nodef 0}} {
+ $emenu configure -postcommand \
+ [list do_build_encoding_menu $emenu $cmd $nodef]
+}
+
+proc do_build_encoding_menu {emenu cmd {nodef 0}} {
+ global used_encodings encoding_groups
+
+ $emenu configure -postcommand {}
+
+ if {!$nodef} {
+ $emenu add command \
+ -label [mc "Default"] \
+ -command [concat $cmd [list {}]]
+ }
+ set sysenc [encoding system]
+ $emenu add command \
+ -label [mc "System (%s)" $sysenc] \
+ -command [concat $cmd [list $sysenc]]
+
+ # Main encoding tree
+ set used_encodings [list identity]
+ $emenu add separator
+ foreach grp $encoding_groups {
+ build_encoding_submenu $emenu $grp $cmd
+ }
+
+ # Add unclassified encodings
+ set unused_grp [list [mc Other]]
+ foreach enc [encoding names] {
+ if {[lsearch -exact $used_encodings $enc] < 0} {
+ lappend unused_grp $enc
+ }
+ }
+ build_encoding_submenu $emenu [list other [mc Other] $unused_grp] $cmd
+}