iwidgets4 4.1.0-1 / usr / share / tcltk / iwidgets4.1.0 / scripts / pane.itk

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#
# Paned
# ----------------------------------------------------------------------
# Implements a pane for a paned window widget.  The pane is itself a 
# frame with a child site for other widgets.  The pane class performs
# basic option management.
#
# ----------------------------------------------------------------------
#  AUTHOR: Mark L. Ulferts              EMAIL: mulferts@austin.dsccc.com
#
#  @(#) $Id: pane.itk,v 1.3 2001/08/07 19:56:48 smithc Exp $
# ----------------------------------------------------------------------
#            Copyright (c) 1995 DSC Technologies Corporation
# ======================================================================
# Permission to use, copy, modify, distribute and license this software 
# and its documentation for any purpose, and without fee or written 
# agreement with DSC, is hereby granted, provided that the above copyright 
# notice appears in all copies and that both the copyright notice and 
# warranty disclaimer below appear in supporting documentation, and that 
# the names of DSC Technologies Corporation or DSC Communications 
# Corporation not be used in advertising or publicity pertaining to the 
# software without specific, written prior permission.
# 
# DSC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 
# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, AND NON-
# INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND THE
# AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE MAINTENANCE, 
# SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. IN NO EVENT SHALL 
# DSC BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 
# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTUOUS ACTION,
# ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 
# SOFTWARE.
# ======================================================================

#
# Usual options.
#
itk::usual Pane {
    keep -background -cursor
}

# ------------------------------------------------------------------
#                               PANE
# ------------------------------------------------------------------
itcl::class iwidgets::Pane {
    inherit itk::Widget

    constructor {args} {}

    itk_option define -minimum minimum Minimum 10
    itk_option define -margin margin Margin 8

    public method childSite {} {}
}

#
# Provide a lowercased access method for the Pane class.
# 
proc ::iwidgets::pane {pathName args} {
    uplevel ::iwidgets::Pane $pathName $args
}

# ------------------------------------------------------------------
#                        CONSTRUCTOR
# ------------------------------------------------------------------
itcl::body iwidgets::Pane::constructor {args} {
    # 
    # Create the pane childsite.
    #
    itk_component add childsite {
	frame $itk_interior.childsite 
    } {
	keep -background -cursor
    }
    pack $itk_component(childsite) -fill both -expand yes
    
    #
    # Set the itk_interior variable to be the childsite for derived 
    # classes.
    #
    set itk_interior $itk_component(childsite)
    
    eval itk_initialize $args
}

# ------------------------------------------------------------------
#                             OPTIONS
# ------------------------------------------------------------------

# ------------------------------------------------------------------
# OPTION: -minimum
#
# Specifies the minimum size that the pane may reach.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Pane::minimum {
    set pixels \
	    [winfo pixels $itk_component(hull) $itk_option(-minimum)]
    
    set itk_option(-minimum) $pixels
}

# ------------------------------------------------------------------
# OPTION: -margin
#
# Specifies the border distance between the pane and pane contents.
# This is done by setting the borderwidth of the pane to the margin.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Pane::margin {
    set pixels [winfo pixels $itk_component(hull) $itk_option(-margin)]
    set itk_option(-margin) $pixels
    
    $itk_component(childsite) configure \
	    -borderwidth $itk_option(-margin)
}

# ------------------------------------------------------------------
#                            METHODS
# ------------------------------------------------------------------

# ------------------------------------------------------------------
# METHOD: childSite
#
# Return the pane child site path name.
# ------------------------------------------------------------------
itcl::body iwidgets::Pane::childSite {} {
    return $itk_component(childsite)
}

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