138 lines
4.3 KiB
Tcl
138 lines
4.3 KiB
Tcl
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# unicodeout.tcl --
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#
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# This demonstration script shows how you can produce output (in label
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# widgets) using many different alphabets.
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if {![info exists widgetDemo]} {
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error "This script should be run from the \"widget\" demo."
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}
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package require Tk
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set w .unicodeout
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catch {destroy $w}
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toplevel $w
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wm title $w "Unicode Label Demonstration"
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wm iconname $w "unicodeout"
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positionWindow $w
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label $w.msg -font $font -wraplength 4i -anchor w -justify left \
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-text "This is a sample of Tk's support for languages that use\
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non-Western character sets. However, what you will actually see\
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below depends largely on what character sets you have installed,\
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and what you see for characters that are not present varies greatly\
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between platforms as well. The strings are written in Tcl using\
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UNICODE characters using the \\uXXXX escape so as to do so in a\
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portable fashion."
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pack $w.msg -side top
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## See Code / Dismiss buttons
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set btns [addSeeDismiss $w.buttons $w]
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pack $btns -side bottom -fill x
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## The frame that will contain the sample texts.
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pack [frame $w.f] -side bottom -expand 1 -fill both -padx 2m -pady 1m
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grid columnconfigure $w.f 1 -weight 1
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set i 0
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proc addSample {w language args} {
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global font i
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set sample [join $args ""]
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set j [incr i]
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label $w.f.l$j -font $font -text "${language}:" -anchor nw -pady 0
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label $w.f.s$j -font $font -text $sample -anchor nw -width 30 -pady 0
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grid $w.f.l$j $w.f.s$j -sticky ew -pady 0
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grid configure $w.f.l$j -padx 1m
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}
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## A helper procedure that determines what form to use to express languages
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## that have complex rendering rules...
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proc usePresentationFormsFor {language} {
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switch [tk windowingsystem] {
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aqua {
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# OSX wants natural character order; the renderer knows how to
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# compose things for display for all languages.
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return false
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}
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x11 {
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# The X11 font renderers that Tk supports all know nothing about
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# composing characters, so we need to use presentation forms.
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return true
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}
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win32 {
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# On Windows, we need to determine whether the font system will
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# render right-to-left text. This varies by language!
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try {
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package require registry
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set rkey [join {
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HKEY_LOCAL_MACHINE
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SOFTWARE
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Microsoft
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{Windows NT}
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CurrentVersion
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LanguagePack
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} \\]
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return [expr {
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[string toupper $language] ni [registry values $rkey]
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}]
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} trap error {} {
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# Cannot work it out, so use presentation forms.
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return true
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}
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}
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default {
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# Default to using presentation forms.
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return true
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}
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}
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}
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## Processing when some characters are not currently cached by the display
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## engine might take a while, so make sure we're displaying something in the
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## meantime...
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pack [label $w.wait -text "Please wait while loading fonts..." \
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-font {Helvetica 12 italic}]
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set oldCursor [$w cget -cursor]
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$w conf -cursor watch
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update
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## Add the samples...
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if {[usePresentationFormsFor Arabic]} {
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# Using presentation forms (pre-layouted)
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addSample $w Arabic \
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"\uFE94\uFEF4\uFE91\uFEAE\uFECC\uFEDF\uFE8D " \
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"\uFE94\uFEE4\uFEE0\uFEDC\uFEDF\uFE8D"
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} else {
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# Using standard text characters
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addSample $w Arabic \
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"\u0627\u0644\u0643\u0644\u0645\u0629 " \
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"\u0627\u0644\u0639\u0631\u0628\u064A\u0629"
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}
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addSample $w "Trad. Chinese" "\u4E2D\u570B\u7684\u6F22\u5B57"
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addSample $w "Simpl. Chinese" "\u6C49\u8BED"
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addSample $w French "Langue fran\u00E7aise"
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addSample $w Greek \
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"\u0395\u03BB\u03BB\u03B7\u03BD\u03B9\u03BA\u03AE " \
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"\u03B3\u03BB\u03CE\u03C3\u03C3\u03B1"
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if {[usePresentationFormsFor Hebrew]} {
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# Visual order (pre-layouted)
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addSample $w Hebrew \
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"\u05EA\u05D9\u05E8\u05D1\u05E2 \u05D1\u05EA\u05DB"
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} else {
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# Standard logical order
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addSample $w Hebrew \
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"\u05DB\u05EA\u05D1 \u05E2\u05D1\u05E8\u05D9\u05EA"
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}
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addSample $w Hindi \
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"\u0939\u093f\u0928\u094d\u0926\u0940 \u092d\u093e\u0937\u093e"
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addSample $w Icelandic "\u00CDslenska"
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addSample $w Japanese \
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"\u65E5\u672C\u8A9E\u306E\u3072\u3089\u304C\u306A, " \
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"\u6F22\u5B57\u3068\u30AB\u30BF\u30AB\u30CA"
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addSample $w Korean "\uB300\uD55C\uBBFC\uAD6D\uC758 \uD55C\uAE00"
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addSample $w Russian \
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"\u0420\u0443\u0441\u0441\u043A\u0438\u0439 \u044F\u0437\u044B\u043A"
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## We're done processing, so change things back to normal running...
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destroy $w.wait
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$w conf -cursor $oldCursor
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