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# SText.tcl --

#

#       This file implements Scrolled Text widgets

#

# Copyright (c) 1996, Expert Interface Technologies

#

# 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}

        {*borderWidth                   1}

        {*text.background               #c3c3c3}

        {*text.highlightBackground      #d9d9d9}

        {*text.relief                   sunken}

        {*text.takeFocus                1}

        {*Scrollbar.background          #d9d9d9}

        {*Scrollbar.relief              sunken}

        {*Scrollbar.troughColor         #c3c3c3}

        {*Scrollbar.takeFocus           0}

        {*Scrollbar.width               15}

    }

    -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

}