晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //usr/lib64/tcl8.6/Tix8.4.3/SHList.tcl
# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
#	$Id: SHList.tcl,v 1.7 2004/04/09 21:37:33 hobbs Exp $
#
# SHList.tcl --
#
#	This file implements Scrolled HList widgets
#
# 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.
#

tixWidgetClass tixScrolledHList {
    -classname TixScrolledHList
    -superclass tixScrolledWidget
    -method {
    }
    -flag {
	 -highlightbackground -highlightcolor -highlightthickness
    }
    -configspec {
	{-highlightbackground -highlightBackground HighlightBackground #d9d9d9}
	{-highlightcolor -highlightColor HighlightColor black}
	{-highlightthickness -highlightThickness HighlightThickness 2}
    }
    -default {
	{.scrollbar			auto}
	{*f1.borderWidth		1}
	{*hlist.Background		#c3c3c3}
	{*hlist.highlightBackground	#d9d9d9}
	{*hlist.relief			sunken}
	{*hlist.takeFocus		1}
	{*Scrollbar.takeFocus		0}
    }
    -forcecall {
	-highlightbackground -highlightcolor -highlightthickness
    }
}

proc tixScrolledHList:ConstructWidget {w} {
    upvar #0 $w data

    tixChainMethod $w ConstructWidget

    set data(pw:f1) [frame $w.f1 -takefocus 0]
    set data(w:hlist) \
	[tixHList $w.f1.hlist -bd 0 -takefocus 1 -highlightthickness 0]

    pack $data(w:hlist) -in $data(pw:f1) -expand yes -fill both -padx 0 -pady 0

    set data(w:hsb) [scrollbar $w.hsb -orient horizontal -takefocus 0]
    set data(w:vsb) [scrollbar $w.vsb -orient vertical -takefocus 0]

    set data(pw:client) $data(pw:f1)
}

proc tixScrolledHList:SetBindings {w} {
    upvar #0 $w data

    tixChainMethod $w SetBindings

    $data(w:hlist) config \
	-xscrollcommand [list $data(w:hsb) set] \
	-yscrollcommand [list $data(w:vsb) set] \
	-sizecmd [list tixScrolledWidget:Configure $w]

    $data(w:hsb) config -command [list $data(w:hlist) xview]
    $data(w:vsb) config -command [list $data(w:hlist) yview]

}

#----------------------------------------------------------------------
#
#		option configs
#----------------------------------------------------------------------
proc tixScrolledHList:config-takefocus {w value} {
    upvar #0 $w data
    $data(w:hlist) config -takefocus $value
}

proc tixScrolledHList:config-highlightbackground {w value} {
    upvar #0 $w data
    $data(pw:f1) config -highlightbackground $value
}

proc tixScrolledHList:config-highlightcolor {w value} {
    upvar #0 $w data
    $data(pw:f1) config -highlightcolor $value
}

proc tixScrolledHList:config-highlightthickness {w value} {
    upvar #0 $w data
    $data(pw:f1) config -highlightthickness $value
}


#----------------------------------------------------------------------
#
#		Widget commands
#----------------------------------------------------------------------

#----------------------------------------------------------------------
#
#		Private Methods
#----------------------------------------------------------------------
# virtual
#
proc tixScrolledHList:RepackHook {w} {
    upvar #0 $w data

    tixChainMethod $w RepackHook
}
#----------------------------------------------------------------------
# virtual functions to query the client window's scroll requirement
#----------------------------------------------------------------------
proc tixScrolledHList:GeometryInfo {w mW mH} {
    upvar #0 $w data

    if {[winfo class $w.f1] eq "Frame"} {
	set extra [expr {[$w.f1 cget -bd]+[$w.f1 cget -highlightthickness]}]
    } else {
	set extra 0
    }

    set mW [expr {$mW - $extra*2}]
    set mH [expr {$mH - $extra*2}]

    if {$mW < 1} {
	set mW 1
    }
    if {$mH < 1} {
	set mH 1
    }

    return [$data(w:hlist) geometryinfo $mW $mH]
}

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