# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-

#

#	$Id: Init.tcl,v 1.15 2004/12/24 00:38:31 hobbs Exp $

#

# Init.tcl --

#

#	Initializes the Tix library and performes version checking to ensure

#	the Tcl, Tk and Tix script libraries loaded matches with the binary

#	of the respective packages.

#

# Copyright (c) 1993-1999 Ioi Kim Lam.

# Copyright (c) 2000-2001 Tix Project Group.

# Copyright (c) 2004 ActiveState

#

# See the file "license.terms" for information on usage and redistribution

# of this file, and for a DISCLAIMER OF ALL WARRANTIES.

#

namespace eval ::tix {

}

proc tixScriptVersion {}    { return $::tix_version }

proc tixScriptPatchLevel {} { return $::tix_patchLevel }

proc ::tix::Init {dir} {

    global tix env tix_library tcl_platform auto_path

    if {[info exists tix(initialized)]} {

	return

    }

    if {![info exists tix_library]} {

        # we're running from stand-alone module. 

        set tix_library ""

    } elseif {[file isdir $tix_library]} {

        if {![info exists auto_path] ||

            [lsearch $auto_path $tix_library] == -1} {

            lappend auto_path $tix_library

        }

    }

    # STEP 1: Version checking

    #

    #

    package require Tcl 8.4

    package require -exact Tix 8.4

    # STEP 2: Initialize file compatibility modules

    #

    foreach file {

	fs.tcl

	Tix.tcl		Event.tcl

	Balloon.tcl	BtnBox.tcl

	CObjView.tcl	ChkList.tcl

	ComboBox.tcl	Compat.tcl

	Console.tcl	Control.tcl

	DefSchm.tcl	DialogS.tcl

	DirBox.tcl	DirDlg.tcl

	DirList.tcl	DirTree.tcl

	DragDrop.tcl	DtlList.tcl

	EFileBox.tcl	EFileDlg.tcl

	FileBox.tcl	FileCbx.tcl

	FileDlg.tcl	FileEnt.tcl

	FloatEnt.tcl

	Grid.tcl	HList.tcl

	HListDD.tcl	IconView.tcl

	LabEntry.tcl	LabFrame.tcl

	LabWidg.tcl	ListNBk.tcl

	Meter.tcl	MultView.tcl

	NoteBook.tcl	OldUtil.tcl

	OptMenu.tcl	PanedWin.tcl

	PopMenu.tcl	Primitiv.tcl

	ResizeH.tcl	SGrid.tcl

	SHList.tcl	SListBox.tcl

	STList.tcl	SText.tcl

	SWidget.tcl	SWindow.tcl

	Select.tcl	Shell.tcl

	SimpDlg.tcl	StackWin.tcl

	StatBar.tcl	StdBBox.tcl

	StdShell.tcl	TList.tcl

	Tree.tcl

	Utils.tcl	VResize.tcl

	VStack.tcl	VTree.tcl

	Variable.tcl	WInfo.tcl

    } {

	uplevel \#0 [list source [file join $dir $file]]

    }

    # STEP 3: Initialize the Tix application context

    #

    tixAppContext tix

    # DO NOT DO THIS HERE !!

    # This causes the global defaults to be altered, which may not

    # be desirable.  The user can call this after requiring Tix if

    # they wish to use different defaults.

    #

    #tix initstyle

    # STEP 4: Initialize the bindings for widgets that are implemented in C

    #

    foreach w {

	HList TList Grid ComboBox Control FloatEntry

	LabelEntry ScrolledGrid ScrolledListBox

    } {

	tix${w}Bind

    }

    rename ::tix::Init ""

}

# tixWidgetClassEx --

#

#       This procedure is similar to tixWidgetClass, except it

#       performs a [subst] on the class declaration before evaluating

#       it. This gives us a chance to specify platform-specific widget

#       default without using a lot of ugly double quotes.

#

#       The use of subst'able entries in the class declaration should

#       be restrained to widget default values only to avoid producing

#       unreadable code.

#

# Arguments:

# name -	The name of the class to declare.

# classDecl -	Various declarations about the class. See documentation

#               of tixWidgetClass for details.

proc tixWidgetClassEx {name classDecl} {

    tixWidgetClass $name [uplevel [list subst $classDecl]]

}

#

# Deprecated tix* functions

#

interp alias {} tixFileJoin {} file join

interp alias {} tixStrEq {} string equal

proc tixTrue  {args} { return 1 }

proc tixFalse {args} { return 0 }

proc tixStringSub {var fromStr toStr} {

    upvar 1 var var

    set var [string map $var [list $fromStr $toStr]]

}

proc tixGetBoolean {args} {

    set len [llength [info level 0]]

    set nocomplain 0

    if {$len == 3} {

	if {[lindex $args 0] ne "-nocomplain"} {

	    return -code error "wrong \# args:\

		must be [lindex [info level 0] 0] ?-nocomplain? string"

	}

	set nocomplain 1

	set val [lindex $args 1]

    } elseif {$len != 2} {

	return -code error "wrong \# args:\

		must be [lindex [info level 0] 0] ?-nocomplain? string"

    } else {

	set val [lindex $args 0]

    }

    if {[string is boolean -strict $val] || $nocomplain} {

	return [string is true -strict $val]

    } elseif {$nocomplain} {

	return 0

    } else {

	return -code error "\"$val\" is not a valid boolean"

    }

}

interp alias {} tixVerifyBoolean {} tixGetBoolean

proc tixGetInt {args} {

    set len [llength [info level 0]]

    set nocomplain 0

    set trunc      0

    for {set i 1} {$i < $len-1} {incr i} {

	set arg [lindex $args 0]

	if {$arg eq "-nocomplain"} {

	    set nocomplain 1

	} elseif {$arg eq "-trunc"} {

	    set trunc 1

	} else {

	    return -code error "wrong \# args: must be\

		[lindex [info level 0] 0] ?-nocomplain? ?-trunc? string"

	}

    }

    if {$i != $len-1} {

	return -code error "wrong \# args: must be\

		[lindex [info level 0] 0] ?-nocomplain? ?-trunc? string"

    }

    set val [lindex $args end]

    set code [catch {expr {round($val)}} res]

    if {$code} {

	if {$nocomplain} {

	    return 0

	} else {

	    return -code error "\"$val\" cannot be converted to integer"

	}

    }

    if {$trunc} {

	return [expr {int($val)}]

    } else {

	return $res

    }

}

proc tixFile {option filename} {

    set len [string length $option]

    if {$len > 1 && [string equal -length $len $option "tildesubst"]} {

	set code [catch {file normalize $filename} res]

	if {$code == 0} {

	    set filename $res

	}

    } elseif {$len > 1 && [string equal -length $len $option "trimslash"]} {

	# normalize extra slashes

	set filename [file join $filename]

	if {$filename ne "/"} {

	    set filename [string trimright $filename "/"]

	}

    } else {

	return -code error "unknown option \"$option\",\

		must be tildesubst or trimslash"

    }

    return $filename

}

interp alias {} tixRaiseWindow {} raise

#proc tixUnmapWindow {w} { }

#

# if tix_library is not defined, we're running in SAM mode. ::tix::Init

# will be called later by the Tix_Init() C code.

#

if {[info exists tix_library]} {

    ::tix::Init [file dirname [info script]]

}