diff options
Diffstat (limited to 'library/demos/unicodeout.tcl')
| -rw-r--r-- | library/demos/unicodeout.tcl | 105 |
1 files changed, 64 insertions, 41 deletions
diff --git a/library/demos/unicodeout.tcl b/library/demos/unicodeout.tcl index 84fe245..46bbfd2 100644 --- a/library/demos/unicodeout.tcl +++ b/library/demos/unicodeout.tcl @@ -3,7 +3,7 @@ # This demonstration script shows how you can produce output (in label # widgets) using many different alphabets. # -# RCS: @(#) $Id: unicodeout.tcl,v 1.8 2009/12/15 03:44:22 kennykb Exp $ +# RCS: @(#) $Id: unicodeout.tcl,v 1.9 2009/12/15 11:50:33 dkf Exp $ if {![info exists widgetDemo]} { error "This script should be run from the \"widget\" demo." @@ -11,26 +11,6 @@ if {![info exists widgetDemo]} { package require Tk -# On Windows, we need to determine whether the font system will render -# right-to-left text. - -if {[tk windowingsystem] eq {win32}} { - set rkey [join { - HKEY_LOCAL_MACHINE - SOFTWARE - Microsoft - {Windows NT} - CurrentVersion - LanguagePack - } \\] - set w32langs {} - if {![catch {package require registry}]} { - if {[catch {registry values $rkey} w32langs]} { - set w32langs {} - } - } -} - set w .unicodeout catch {destroy $w} toplevel $w @@ -52,11 +32,9 @@ pack $w.msg -side top set btns [addSeeDismiss $w.buttons $w] pack $btns -side bottom -fill x -pack [label $w.wait -text "Please wait while loading fonts..." \ - -font {Helvetica 12 italic}] -pack [frame $w.f] -expand 1 -fill both -padx 2m -pady 1m +## The frame that will contain the sample texts. +pack [frame $w.f] -side bottom -expand 1 -fill both -padx 2m -pady 1m grid columnconfigure $w.f 1 -weight 1 - set i 0 proc addSample {w language args} { global font i @@ -68,42 +46,87 @@ proc addSample {w language args} { grid configure $w.f.l$j -padx 1m } -# Processing when some characters are missing might take a while, so make -# sure we're displaying something in the meantime... +## A helper procedure that determines what form to use to express languages +## that have complex rendering rules... +proc usePresentationFormsFor {language} { + switch [tk windowingsystem] { + aqua { + # OSX wants natural character order; the renderer knows how to + # compose things for display for all languages. + return false + } + x11 { + # The X11 font renderers that Tk supports all know nothing about + # composing characters, so we need to use presentation forms. + return true + } + win32 { + # On Windows, we need to determine whether the font system will + # render right-to-left text. This varies by language! + try { + package require registry + set rkey [join { + HKEY_LOCAL_MACHINE + SOFTWARE + Microsoft + {Windows NT} + CurrentVersion + LanguagePack + } \\] + return [expr { + [string toupper $language] ni [registry values $rkey] + }] + } trap error {} { + # Cannot work it out, so use presentation forms. + return true + } + } + default { + # Default to using presentation forms. + return true + } + } +} +## Processing when some characters are not currently cached by the display +## engine might take a while, so make sure we're displaying something in the +## meantime... +pack [label $w.wait -text "Please wait while loading fonts..." \ + -font {Helvetica 12 italic}] set oldCursor [$w cget -cursor] $w conf -cursor watch update -if {[tk windowingsystem] eq {x11} - || (([tk windowingsystem] eq {win32}) && ({ARABIC} ni $w32langs))} { +## Add the samples... +if {[usePresentationFormsFor Arabic]} { # Using presentation forms (pre-layouted) addSample $w Arabic \ - "\uFE94\uFEF4\uFE91\uFEAE\uFECC\uFEDF\uFE8D " \ - "\uFE94\uFEE4\uFEE0\uFEDC\uFEDF\uFE8D" + "\uFE94\uFEF4\uFE91\uFEAE\uFECC\uFEDF\uFE8D " \ + "\uFE94\uFEE4\uFEE0\uFEDC\uFEDF\uFE8D" } else { # Using standard text characters addSample $w Arabic \ - "\u0627\u0644\u0643\u0644\u0645\u0629 " \ - "\u0627\u0644\u0639\u0631\u0628\u064A\u0629" + "\u0627\u0644\u0643\u0644\u0645\u0629 " \ + "\u0627\u0644\u0639\u0631\u0628\u064A\u0629" } -addSample $w "Trad. Chinese" "\u4E2D\u570B\u7684\u6F22\u5B57" +addSample $w "Trad. Chinese" "\u4E2D\u570B\u7684\u6F22\u5B57" addSample $w "Simpl. Chinese" "\u6C49\u8BED" +addSample $w French "Langue fran\u00E7aise" addSample $w Greek \ "\u0395\u03BB\u03BB\u03B7\u03BD\u03B9\u03BA\u03AE " \ "\u03B3\u03BB\u03CE\u03C3\u03C3\u03B1" -if {[tk windowingsystem] eq {x11} - || (([tk windowingsystem] eq {win32}) && ({HEBREW} ni $w32langs))} { +if {[usePresentationFormsFor Hebrew]} { # Visual order (pre-layouted) addSample $w Hebrew \ - "\u05EA\u05D9\u05E8\u05D1\u05E2 " \ - "\u05D1\u05EA\u05DB" + "\u05EA\u05D9\u05E8\u05D1\u05E2 \u05D1\u05EA\u05DB" } else { # Standard logical order addSample $w Hebrew \ - "\u05DB\u05EA\u05D1 " \ - "\u05E2\u05D1\u05E8\u05D9\u05EA" + "\u05DB\u05EA\u05D1 \u05E2\u05D1\u05E8\u05D9\u05EA" } +addSample $w Hindi \ + "\u0939\u093f\u0928\u094d\u0926\u0940 \u092d\u093e\u0937\u093e" +addSample $w Icelandic "\u00CDslenska" addSample $w Japanese \ "\u65E5\u672C\u8A9E\u306E\u3072\u3089\u304C\u306A, " \ "\u6F22\u5B57\u3068\u30AB\u30BF\u30AB\u30CA" @@ -111,6 +134,6 @@ addSample $w Korean "\uB300\uD55C\uBBFC\uAD6D\uC758 \uD55C\uAE00" addSample $w Russian \ "\u0420\u0443\u0441\u0441\u043A\u0438\u0439 \u044F\u0437\u044B\u043A" -# We're done processing, so change things back to normal running... +## We're done processing, so change things back to normal running... destroy $w.wait $w conf -cursor $oldCursor |