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markom |
# Init.tcl --
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#
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# Initializes the Tix library and performes version checking to ensure
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# the Tcl, Tk and Tix script libraries loaded matches with the binary
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# of the respective packages.
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#
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# Copyright (c) 1996, Expert Interface Technologies
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#
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# See the file "license.terms" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#
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if ![tixStrEq $tix_library ""] {
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global auto_path
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lappend auto_path $tix_library
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}
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if [catch {file join a a}] {
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proc tixFileJoin {args} {
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set p [join $args /]
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regsub -all {/+} $p / p
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return $p
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}
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} else {
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proc tixFileJoin {args} {
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return [eval file join $args]
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}
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}
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proc __tixError {errorMsg} {
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error [concat $errorMsg \
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"Please check your TIX_LIBRARY environment variable and " \
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"your Tix installation."]
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}
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proc __tixInit {} {
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global tix tixPriv env tix_version tix_patchLevel tk_version tix_library
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global tcl_version
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if [info exists tix(initialized)] {
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return
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}
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if {[info command "@scope"] != ""} {
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set hasItcl 1
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} else {
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set hasItcl 0
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}
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# STEP 0: Version checking using the Tcl7.5 package mechanism. This is not
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# done if we are linked to Tcl 7.4.
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#
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if [string compare [info command package] ""] {
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if {![string comp [info command tixScriptVersion] ""] &&
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![auto_load tixScriptVersion]} {
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__tixError [concat "Cannot determine version of Tix script " \
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"library. Requires version $tix_version."]
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}
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if !$hasItcl {
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set pkgVersion $tix_version.$tcl_version
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} else {
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# The extra .1 indicates that the Tix binary is specially
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# compiled for Itcl. This is necessary for the "package
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# require" command to load in the correct shared library
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# file.
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set pkgVersion $tix_version.$tcl_version.1
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}
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package provide Tix $pkgVersion
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if [tixStrEq $tix_library ""] {
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package provide Tixsam $pkgVersion
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}
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}
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# STEP 1: Version checking
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#
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#
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if {![string compare [info command tixScriptVersion] ""] &&
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![auto_load tixScriptVersion]} {
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__tixError [concat "Cannot determine version of Tix script library. "\
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"Requires version $tix_version."]
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} elseif [string compare [tixScriptVersion] $tix_version] {
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__tixError [concat "Tix script library version ([tixScriptVersion]) "\
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"does not match binary version ($tix_version)"]
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} elseif [string compare [tixScriptPatchLevel] $tix_patchLevel] {
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__tixError [concat "Tix script library patch-level "\
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"([tixScriptPatchLevel]) does not match binary patch-level "\
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"($tix_patchLevel)"]
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}
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if [info exists errorMsg] {
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error $errorMsg
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}
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# STEP 2: Initialize file compatibility modules
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#
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#
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if [info exists tixPriv(isWindows)] {
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tixInitFileCmpt:Win
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} elseif [info exists env(WINDOWS_EMU_DEBUG)] {
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tixInitFileCmpt:Win
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tixWinFileEmu
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} else {
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tixInitFileCmpt:Unix
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}
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# STEP 3: Initialize the Tix application context
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#
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#
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tixAppContext tix
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# STEP 4: Initialize the bindings for widgets that are implemented in C
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#
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#
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if [string compare [info command tixHList] ""] {
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tixHListBind
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}
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if [string compare [info command tixTList] ""] {
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tixTListBind
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}
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if [string compare [info command tixGrid] ""] {
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tixGridBind
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}
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tixComboBoxBind
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tixControlBind
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tixFloatEntryBind
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tixLabelEntryBind
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tixScrolledGridBind
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tixScrolledListBoxBind
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# STEP 5: Some ITCL compatibility stuff
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#
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#
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if $hasItcl {
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rename update __update
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# We use $colon$colon as a hack here. The reason is, starting from
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# Tix 4.0.6/4.1b1, all the double colons in Tix classnames have
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# been replaced by a single colon by a sed script. This modification
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# makes it possible to use Tix with ITCL without having to modify
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# the ITCL core. However, we don't want the real double colon
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# (which means the global scope in ITCL) to be replaced. The
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# $colon$colon just by-passes the sed script.
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#
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proc update {args} {
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set colon :
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@scope $colon$colon eval __update $args
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}
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rename tkwait __tkwait
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proc tkwait {args} {
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set colon :
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@scope $colon$colon eval __tkwait $args
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}
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}
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rename __tixError ""
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rename __tixInit ""
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}
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