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　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。 . Prv8 Shell

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Current File : //lib64/tcl8.6/Tix8.4.3/SText.tcl

# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
#	$Id: SText.tcl,v 1.4 2001/12/09 05:04:02 idiscovery Exp $
#
# SText.tcl --
#
#	This file implements Scrolled Text widgets
#
# Copyright (c) 1993-1999 Ioi Kim Lam.
# Copyright (c) 2000-2001 Tix Project Group.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#



tixWidgetClass tixScrolledText {
    -classname TixScrolledText
    -superclass tixScrolledWidget
    -method {
    }
    -flag {
    }
    -static {
    }
    -configspec {
    }
    -default {
	{.scrollbar			both}
	{*Scrollbar.takeFocus		0}
    }
    -forcecall {
	-scrollbar
    }
}

proc tixScrolledText:ConstructWidget {w} {
    upvar #0 $w data
    global tcl_platform

    tixChainMethod $w ConstructWidget

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

    if {$data(-sizebox) && $tcl_platform(platform) == "windows"} {
#       set data(w:sizebox) [ide_sizebox $w.sizebox]
    }

    set data(pw:client) $data(w:text)
}

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

    tixChainMethod $w SetBindings

    $data(w:text) config \
	-xscrollcommand "tixScrolledText:XScroll $w"\
	-yscrollcommand "tixScrolledText:YScroll $w"

    $data(w:hsb) config -command "$data(w:text) xview"
    $data(w:vsb) config -command "$data(w:text) yview"
}

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

proc tixScrolledText:config-scrollbar {w value} {
    upvar #0 $w data
  
    if {[string match "auto*" $value]} {
	set value "both"
    }
    set data(-scrollbar) $value

    tixChainMethod $w config-scrollbar $value

    return $value
}	

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


#----------------------------------------------------------------------
#
#		Private Methods
#----------------------------------------------------------------------

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

    return [list "$data(x,first) $data(x,last)" "$data(y,first) $data(y,last)"]
}

proc tixScrolledText:XScroll {w first last} {
    upvar #0 $w data

    set data(x,first) $first
    set data(x,last)  $last

    $data(w:hsb) set $first $last

    tixWidgetDoWhenIdle tixScrolledWidget:Configure $w
}

proc tixScrolledText:YScroll {w first last} {
    upvar #0 $w data

    set data(y,first) $first
    set data(y,last)  $last
    
    $data(w:vsb) set $first $last

    tixWidgetDoWhenIdle tixScrolledWidget:Configure $w
}

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