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- #
- # Panedwindow
- # ----------------------------------------------------------------------
- # Implements a multiple paned window widget capable of orienting the panes
- # either vertically or horizontally. Each pane is itself a frame acting
- # as a child site for other widgets. The border separating each pane
- # contains a sash which allows user positioning of the panes relative to
- # one another.
- #
- # ----------------------------------------------------------------------
- # AUTHOR: Mark L. Ulferts EMAIL: mulferts@austin.dsccc.com
- #
- # @(#) $Id: panedwindow.itk,v 1.7 2001/09/06 15:12:46 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 Panedwindow {
- keep -background -cursor -sashcursor
- }
-
- # ------------------------------------------------------------------
- # PANEDWINDOW
- # ------------------------------------------------------------------
- itcl::class iwidgets::Panedwindow {
- inherit itk::Widget
-
- constructor {args} {}
-
- itk_option define -orient orient Orient horizontal
- itk_option define -sashborderwidth sashBorderWidth SashBorderWidth 2
- itk_option define -sashcursor sashCursor SashCursor crosshair
- itk_option define -sashwidth sashWidth SashWidth 10
- itk_option define -sashheight sashHeight SashHeight 10
- itk_option define -thickness thickness Thickness 3
- itk_option define -sashindent sashIndent SashIndent -10
- itk_option define -showhandle showHandle ShowHandle 1
-
- public method index {index}
- public method childsite {args}
- public method fraction {args}
- public method add {tag args}
- public method insert {index tag args}
- public method delete {index}
- public method hide {index}
- public method show {index}
- public method paneconfigure {index args}
- public method reset {}
-
- protected method _pwConfigureEventHandler {width height}
- protected method _startGrip {where num}
- protected method _endGrip {where num}
- protected method _configGrip {where num}
- protected method _handleGrip {where num}
- protected method _moveSash {where num}
-
- private method _setFracArray {}
- private method _setActivePanes {}
- private method _calcFraction {where num}
- private method _makeSashes {}
- private method _placeSash {i}
- private method _placePanes {{start 0} {end end}}
-
- private variable _initialized 0 ;# Denotes initialized state.
- private variable _panes {} ;# List of panes.
- private variable _activePanes {} ;# List of active panes.
- private variable _sashes {} ;# List of sashes.
- private variable _separators {} ;# List of separators.
- private variable _frac ;# Array of fraction percentages.
- private variable _lowerlimit ;# Margin distance above/left of sash.
- private variable _upperlimit ;# Margin distance below/right of sash.
- private variable _dimension ;# Width/Height at start of drag.
- private variable _sashloc ;# Array of dist of sash from above/left.
- private variable _pixels ;# Array of dist of sash from above/left.
- private variable _minheight ;# Array of min heights for panes.
- private variable _minsashmoved ;# Lowest sash moved during dragging.
- private variable _maxsashmoved ;# Highest sash moved during dragging.
- private variable _dragging 0 ;# Boolean for dragging enabled.
- private variable _movecount 0 ;# Kludge counter to get sashes to
- ;# display without calling update
- ;# idletasks too often.
- private variable _width 0 ;# hull's width.
- private variable _height 0 ;# hull's height.
- private variable _unique -1 ;# Unique number for pane names.
-
- private variable _relief ;# relief for -showhandle
- }
-
- #
- # Provide a lowercased access method for the Panedwindow class.
- #
- proc ::iwidgets::panedwindow {pathName args} {
- uplevel ::iwidgets::Panedwindow $pathName $args
- }
-
- #
- # Use option database to override default resources of base classes.
- #
- option add *Panedwindow.width 10 widgetDefault
- option add *Panedwindow.height 10 widgetDefault
-
- # ------------------------------------------------------------------
- # CONSTRUCTOR
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::constructor {args} {
- itk_option add hull.width hull.height
-
- pack propagate $itk_component(hull) no
-
- #
- # Add binding for the configure event.
- #
- bind pw-config-$this <Configure> [itcl::code $this _pwConfigureEventHandler %w %h]
- bindtags $itk_component(hull) \
- [linsert [bindtags $itk_component(hull)] 0 pw-config-$this]
-
- array set _relief {0 sunken 1 raised}
-
- eval itk_initialize $args
- }
-
- # ------------------------------------------------------------------
- # OPTIONS
- # ------------------------------------------------------------------
-
- # ------------------------------------------------------------------
- # OPTION: -orient
- #
- # Specifies the orientation of the sashes. Once the paned window
- # has been mapped, set the sash bindings and place the panes.
- # ------------------------------------------------------------------
- itcl::configbody iwidgets::Panedwindow::orient {
- if {$_initialized} {
- switch $itk_option(-orient) {
- vertical {
- for {set i 1} {$i < [llength $_activePanes]} {incr i} {
- bind $itk_component(sash$i) <Button-1> \
- [itcl::code $this _startGrip %x $i]
- bind $itk_component(sash$i) <B1-Motion> \
- [itcl::code $this _handleGrip %x $i]
- bind $itk_component(sash$i) <B1-ButtonRelease-1> \
- [itcl::code $this _endGrip %x $i]
- bind $itk_component(sash$i) <Configure> \
- [itcl::code $this _configGrip %x $i]
- }
-
- _setFracArray
- _makeSashes
- _placePanes
- }
-
- horizontal {
- for {set i 1} {$i < [llength $_activePanes]} {incr i} {
- bind $itk_component(sash$i) <Button-1> \
- [itcl::code $this _startGrip %y $i]
- bind $itk_component(sash$i) <B1-Motion> \
- [itcl::code $this _handleGrip %y $i]
- bind $itk_component(sash$i) <B1-ButtonRelease-1> \
- [itcl::code $this _endGrip %y $i]
- bind $itk_component(sash$i) <Configure> \
- [itcl::code $this _configGrip %y $i]
- }
-
- _setFracArray
- _makeSashes
- _placePanes
- }
-
- default {
- error "bad orientation option \"$itk_option(-orient)\":\
- should be horizontal or vertical"
- }
- }
- }
- }
-
- # ------------------------------------------------------------------
- # OPTION: -sashborderwidth
- #
- # Specifies a non-negative value indicating the width of the 3-D
- # border to draw around the outside of the sash.
- # ------------------------------------------------------------------
- itcl::configbody iwidgets::Panedwindow::sashborderwidth {
- set pixels [winfo pixels $itk_component(hull) \
- $itk_option(-sashborderwidth)]
- set itk_option(-sashborderwidth) $pixels
-
- if {$_initialized} {
- for {set i 1} {$i < [llength $_activePanes]} {incr i} {
- $itk_component(sash$i) configure \
- -borderwidth $itk_option(-sashborderwidth)
- }
- }
- }
-
- # ------------------------------------------------------------------
- # OPTION: -sashcursor
- #
- # Specifies the type of cursor to be used when over the sash.
- # ------------------------------------------------------------------
- itcl::configbody iwidgets::Panedwindow::sashcursor {
- if {$_initialized} {
- for {set i 1} {$i < [llength $_activePanes]} {incr i} {
- $itk_component(sash$i) configure -cursor $itk_option(-sashcursor)
- }
- }
- }
-
- # ------------------------------------------------------------------
- # OPTION: -sashwidth
- #
- # Specifies the width of the sash.
- # ------------------------------------------------------------------
- itcl::configbody iwidgets::Panedwindow::sashwidth {
- set pixels [winfo pixels $itk_component(hull) \
- $itk_option(-sashwidth)]
- set itk_option(-sashwidth) $pixels
-
- if {$_initialized} {
- for {set i 1} {$i < [llength $_activePanes]} {incr i} {
- $itk_component(sash$i) configure \
- -width $itk_option(-sashwidth)
- }
- }
- }
-
- # ------------------------------------------------------------------
- # OPTION: -sashheight
- #
- # Specifies the height of the sash,
- # ------------------------------------------------------------------
- itcl::configbody iwidgets::Panedwindow::sashheight {
- set pixels [winfo pixels $itk_component(hull) \
- $itk_option(-sashheight)]
- set itk_option(-sashheight) $pixels
-
- if {$_initialized} {
- for {set i 1} {$i < [llength $_activePanes]} {incr i} {
- $itk_component(sash$i) configure \
- -height $itk_option(-sashheight)
- }
- }
- }
-
- # ------------------------------------------------------------------
- # OPTION: -showhandle
- #
- # Specifies whether or not to show the sash handle. If not, then the
- # whole separator becomes the handle. Valid values are 0 or 1.
- # ------------------------------------------------------------------
- itcl::configbody iwidgets::Panedwindow::showhandle {
- switch $itk_option(-showhandle) {
- 0 - 1 {
- # Update the sashes.
- _makeSashes
- _placePanes
- }
- default {
- error "Invalid option for -showhandle: $itk_option(-showhandle).\
- Must be 1 or 0."
- }
- }
- }
-
-
- # ------------------------------------------------------------------
- # OPTION: -thickness
- #
- # Specifies the thickness of the separators. It sets the width and
- # height of the separator to the thickness value and the borderwidth
- # to half the thickness.
- # ------------------------------------------------------------------
- itcl::configbody iwidgets::Panedwindow::thickness {
- set pixels [winfo pixels $itk_component(hull) \
- $itk_option(-thickness)]
- set itk_option(-thickness) $pixels
-
- if {$_initialized} {
- for {set i 1} {$i < [llength $_activePanes]} {incr i} {
- $itk_component(separator$i) configure \
- -height $itk_option(-thickness)
- $itk_component(separator$i) configure \
- -width $itk_option(-thickness)
- $itk_component(separator$i) configure \
- -borderwidth [expr {$itk_option(-thickness) / 2}]
- }
-
- for {set i 1} {$i < [llength $_activePanes]} {incr i} {
- _placeSash $i
- }
- }
- }
-
- # ------------------------------------------------------------------
- # OPTION: -sashindent
- #
- # Specifies the placement of the sash along the panes. A positive
- # value causes the sash to be offset from the near (left/top) side
- # of the pane, and a negative value causes the sash to be offset from
- # the far (right/bottom) side. If the offset is greater than the
- # width, then the sash is placed flush against the side.
- # ------------------------------------------------------------------
- itcl::configbody iwidgets::Panedwindow::sashindent {
- set pixels [winfo pixels $itk_component(hull) \
- $itk_option(-sashindent)]
- set itk_option(-sashindent) $pixels
-
- if {$_initialized} {
- for {set i 1} {$i < [llength $_activePanes]} {incr i} {
- _placeSash $i
- }
- }
- }
-
- # ------------------------------------------------------------------
- # METHODS
- # ------------------------------------------------------------------
-
- # ------------------------------------------------------------------
- # METHOD: index index
- #
- # Searches the panes in the paned window for the one with the
- # requested tag, numerical index, or keyword "end". Returns the pane's
- # numerical index if found, otherwise error.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::index {index} {
- if {[llength $_panes] > 0} {
- if {[regexp {(^[0-9]+$)} $index]} {
- if {$index < [llength $_panes]} {
- return $index
- } else {
- error "Panedwindow index \"$index\" is out of range"
- }
-
- } elseif {$index == "end"} {
- return [expr {[llength $_panes] - 1}]
-
- } else {
- if {[set idx [lsearch $_panes $index]] != -1} {
- return $idx
- }
-
- error "bad Panedwindow index \"$index\": must be number, end,\
- or pattern"
- }
-
- } else {
- error "Panedwindow \"$itk_component(hull)\" has no panes"
- }
- }
-
- # ------------------------------------------------------------------
- # METHOD: childsite ?index?
- #
- # Given an index return the specifc childsite path name. Invoked
- # without an index return a list of all the child site panes. The
- # list is ordered from the near side (left/top).
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::childsite {args} {
- if {! $_initialized} {
- set _initialized 1
- reset
- }
-
- if {[llength $args] == 0} {
- set children {}
-
- foreach pane $_panes {
- lappend children [$itk_component($pane) childSite]
- }
-
- return $children
-
- } else {
- set index [index [lindex $args 0]]
- return [$itk_component([lindex $_panes $index]) childSite]
- }
- }
-
- # ------------------------------------------------------------------
- # METHOD: fraction percentage percentage ?percentage ...?
- #
- # Sets the visible percentage of the panes. Specifies a list of
- # percentages which are applied to the currently visible panes from
- # the near side (left/top). The number of percentages must be equal
- # to the current number of visible (mapped) panes and add up to 100.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::fraction {args} {
- #set args [linsert $args 0 $percentage1 $percentage2]
-
-
- if {[llength $args] == [llength $_activePanes]} {
- set sum 0
-
- for {set i 0} {$i < [llength $args]} {incr i} {
- set sum [expr {$sum + [lindex $args $i]}]
- }
-
- if {$sum == 100} {
- set perc 0.0
-
- for {set i 0} {$i < [llength $_activePanes]} {incr i} {
- set _frac($i) $perc
- set perc [expr {$perc + [expr {[lindex $args $i] / 100.0}]}]
- }
-
- set _frac($i) 1.0
-
- if {[winfo ismapped $itk_component(hull)]} {
- _placePanes
- }
-
- } else {
- error "bad fraction arguments \"$args\": they should add\
- up to 100"
- }
-
- } elseif {[llength $args] == 0} {
-
- for {set i 0; set j 1} {$j < [llength $_activePanes]} {incr i; incr j} {
- lappend _ret [expr {round(($_frac($j) - $_frac($i))*100)}]
- }
- lappend _ret [eval expr {100 - ([join $_ret +])}]
-
- return $_ret
- } else {
- error "wrong # args: should be \"$itk_component(hull)\
- fraction percentage percentage ?percentage ...?\",\
- where the number of percentages is\
- [llength $_activePanes] and equal 100
- or \"$itk_component(hull) fraction\"
- which will return a list of the current percentages"
- }
- }
-
- # ------------------------------------------------------------------
- # METHOD: add tag ?option value option value ...?
- #
- # Add a new pane to the paned window to the far (right/bottom) side.
- # The method takes additional options which are passed on to the
- # pane constructor. These include -margin, and -minimum. The path
- # of the pane is returned.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::add {tag args} {
- #
- # Create panes.
- #
- itk_component add $tag {
- eval iwidgets::Pane $itk_interior.pane[incr _unique] $args
- } {
- keep -background -cursor
- }
-
- lappend _panes $tag
- lappend _activePanes $tag
-
- reset
-
- return $itk_component($tag)
- }
-
- # ------------------------------------------------------------------
- # METHOD: insert index tag ?option value option value ...?
- #
- # Insert the specified pane in the paned window just before the one
- # given by index. Any additional options which are passed on to the
- # pane constructor. These include -margin, -minimum. The path of
- # the pane is returned.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::insert {index tag args} {
- #
- # Create panes.
- #
- itk_component add $tag {
- eval iwidgets::Pane $itk_interior.pane[incr _unique] $args
- } {
- keep -background -cursor
- }
-
- set index [index $index]
- set _panes [linsert $_panes $index $tag]
- lappend _activePanes $tag
-
- reset
-
- return $itk_component($tag)
- }
-
- # ------------------------------------------------------------------
- # METHOD: delete index
- #
- # Delete the specified pane.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::delete {index} {
- set index [index $index]
- set tag [lindex $_panes $index]
-
- destroy $itk_component($tag)
-
- set _panes [lreplace $_panes $index $index]
-
- reset
- }
-
- # ------------------------------------------------------------------
- # METHOD: hide index
- #
- # Remove the specified pane from the paned window.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::hide {index} {
- set index [index $index]
- set tag [lindex $_panes $index]
-
- if {[set idx [lsearch -exact $_activePanes $tag]] != -1} {
- set _activePanes [lreplace $_activePanes $idx $idx]
- }
-
- reset
- }
-
- # ------------------------------------------------------------------
- # METHOD: show index
- #
- # Display the specified pane in the paned window.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::show {index} {
- set index [index $index]
- set tag [lindex $_panes $index]
-
- if {[lsearch -exact $_activePanes $tag] == -1} {
- lappend _activePanes $tag
- }
-
- reset
- }
-
- # ------------------------------------------------------------------
- # METHOD: paneconfigure index ?option? ?value option value ...?
- #
- # Configure a specified pane. This method allows configuration of
- # panes from the Panedwindow level. The options may have any of the
- # values accepted by the add method.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::paneconfigure {index args} {
- set index [index $index]
- set tag [lindex $_panes $index]
-
- return [uplevel $itk_component($tag) configure $args]
- }
-
- # ------------------------------------------------------------------
- # METHOD: reset
- #
- # Redisplay the panes based on the default percentages of the panes.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::reset {} {
- if {$_initialized && [llength $_panes]} {
- _setActivePanes
- _setFracArray
-
- _makeSashes
- _placePanes
- }
- }
-
- # ------------------------------------------------------------------
- # PROTECTED METHOD: _pwConfigureEventHandler
- #
- # Performs operations necessary following a configure event. This
- # includes placing the panes.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_pwConfigureEventHandler {width height} {
- set _width $width
- set _height $height
- if {$_initialized} {
- _placePanes
- } else {
- set _initialized 1
- reset
- }
- }
-
- # ------------------------------------------------------------------
- # PROTECTED METHOD: _startGrip where num
- #
- # Starts the sash drag and drop operation. At the start of the drag
- # operation all the information is known as for the upper and lower
- # limits for sash movement. The calculation is made at this time and
- # stored in protected variables for later access during the drag
- # handling routines.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_startGrip {where num} {
- if {$itk_option(-orient) == "horizontal"} {
- set _dimension $_height
- } else {
- set _dimension $_width
- }
-
- set _minsashmoved $num
- set _maxsashmoved $num
- set totMinHeight 0
- set cnt [llength $_activePanes]
- set _sashloc(0) 0
- set _pixels($cnt) [expr {int($_dimension)}]
- for {set i 0} {$i < $cnt} {incr i} {
- set _pixels($i) [expr {int($_frac($i) * $_dimension)}]
- set margaft [$itk_component([lindex $_activePanes $i]) cget -margin]
- set minaft [$itk_component([lindex $_activePanes $i]) cget -minimum]
- set _minheight($i) [expr {$minaft + (2 * $margaft)}]
- incr totMinHeight $_minheight($i)
- }
- set _dragging [expr {$_dimension > $totMinHeight}]
-
- grab $itk_component(sash$num)
- raise $itk_component(separator$num)
- raise $itk_component(sash$num)
-
- $itk_component(sash$num) configure -relief sunken
- }
-
- # ------------------------------------------------------------------
- # PROTECTED METHOD: _endGrip where num
- #
- # Ends the sash drag and drop operation.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_endGrip {where num} {
- $itk_component(sash$num) configure -relief $_relief($itk_option(-showhandle))
- grab release $itk_component(sash$num)
- if {$_dragging} {
- _calcFraction [expr {$_sashloc($num) + $where}] $num
- _placePanes [expr {$_minsashmoved - 1}] $_maxsashmoved
- set _dragging 0
- }
- }
-
- # ------------------------------------------------------------------
- # PROTECTED METHOD: _configGrip where num
- #
- # Configure action for sash.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_configGrip {where num} {
- set _sashloc($num) $where
- }
-
- # ------------------------------------------------------------------
- # PROTECTED METHOD: _handleGrip where num
- #
- # Motion action for sash.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_handleGrip {where num} {
- if {$_dragging} {
- _moveSash [expr {$where + $_sashloc($num)}] $num
- incr _movecount
- if {$_movecount>4} {
- set _movecount 0
- update idletasks
- }
- }
- }
-
- # ------------------------------------------------------------------
- # PROTECTED METHOD: _moveSash where num
- #
- # Move the sash to the absolute pixel location
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_moveSash {where num} {
- set _minsashmoved [expr {($_minsashmoved<$num)?$_minsashmoved:$num}]
- set _maxsashmoved [expr {($_maxsashmoved>$num)?$_maxsashmoved:$num}]
- set oldfrac $_frac($num)
- _calcFraction $where $num
- if {$_frac($num)!=$oldfrac} { _placeSash $num }
- }
-
- # ------------------------------------------------------------------
- # PRIVATE METHOD: _setFracArray
- #
- # Calculates the percentages for the fraction array which lists the
- # percentages for each pane.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_setFracArray {} {
- set perc 0.0
- if {[llength $_activePanes] != 0} {
- set percIncr [expr {1.0 / [llength $_activePanes]}]
- }
-
- for {set i 0} {$i < [llength $_activePanes]} {incr i} {
- set _frac($i) $perc
- set perc [expr {$perc + $percIncr}]
- }
-
- set _frac($i) 1.0
- }
-
- # ------------------------------------------------------------------
- # PRIVATE METHOD: _setActivePanes
- #
- # Resets the active pane list.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_setActivePanes {} {
- set _prevActivePanes $_activePanes
-
- set _activePanes {}
-
- foreach pane $_panes {
- if {[lsearch -exact $_prevActivePanes $pane] != -1} {
- lappend _activePanes $pane
- }
- }
- }
-
- # ------------------------------------------------------------------
- # PRIVATE METHOD: _calcFraction where num
- #
- # Determines the fraction for the sash. Make sure the fraction does
- # not go past the minimum for the pane on each side of the separator.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_calcFraction {where num} {
-
- set numi [expr {$num + 1}]
- set numd [expr {$num - 1}]
-
- set _lowerlimit [expr {$_pixels($numd) + $_minheight($numd)}]
- set _upperlimit [expr {$_pixels($numi) - $_minheight($num)}]
-
- set dir [expr {$where - $_pixels($num)}]
-
- if {$where < $_lowerlimit && $dir <= 0} {
- if {$num == 1} {
- set _pixels($num) $_lowerlimit
- } {
- _moveSash [expr {$where - $_minheight($numd)}] $numd
- set _pixels($num) [expr {$_pixels($numd) + $_minheight($numd)}]
- }
- } elseif {$where > $_upperlimit && $dir >= 0} {
- if {$numi == [llength $_activePanes]} {
- set _pixels($num) $_upperlimit
- } {
- _moveSash [expr {$where + $_minheight($num)}] $numi
- set _pixels($num) \
- [expr {$_pixels($numi) - $_minheight($num)}]
- }
- } else {
- set _pixels($num) $where
- }
- set _frac($num) [expr $_pixels($num).0 / $_dimension]
- }
-
- # ------------------------------------------------------------------
- # PRIVATE METHOD: _makeSashes
- #
- # Removes any previous sashes and separators and creates new one.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_makeSashes {} {
- #
- # Remove any existing sashes and separators.
- #
- foreach sash $_sashes {
- destroy $itk_component($sash)
- }
-
- foreach separator $_separators {
- destroy $itk_component($separator)
- }
-
- set _sashes {}
- set _separators {}
-
- #
- # Create one less separator and sash than the number of panes.
- #
- for {set id 1} {$id < [llength $_activePanes]} {incr id} {
- itk_component add sash$id {
- frame $itk_interior.sash$id -relief $_relief($itk_option(-showhandle)) \
- -borderwidth $itk_option(-sashborderwidth) \
- -cursor $itk_option(-sashcursor) \
- -width $itk_option(-sashwidth) \
- -height $itk_option(-sashheight)
- } {
- keep -background
- }
-
- lappend _sashes sash$id
-
- switch $itk_option(-orient) {
- vertical {
- bind $itk_component(sash$id) <Button-1> \
- [itcl::code $this _startGrip %x $id]
- bind $itk_component(sash$id) <B1-Motion> \
- [itcl::code $this _handleGrip %x $id]
- bind $itk_component(sash$id) <B1-ButtonRelease-1> \
- [itcl::code $this _endGrip %x $id]
- bind $itk_component(sash$id) <Configure> \
- [itcl::code $this _configGrip %x $id]
- }
-
- horizontal {
- bind $itk_component(sash$id) <Button-1> \
- [itcl::code $this _startGrip %y $id]
- bind $itk_component(sash$id) <B1-Motion> \
- [itcl::code $this _handleGrip %y $id]
- bind $itk_component(sash$id) <B1-ButtonRelease-1> \
- [itcl::code $this _endGrip %y $id]
- bind $itk_component(sash$id) <Configure> \
- [itcl::code $this _configGrip %y $id]
- }
- }
-
- itk_component add separator$id {
- frame $itk_interior.separator$id -relief sunken \
- -height $itk_option(-thickness) \
- -width $itk_option(-thickness) \
- -borderwidth [expr {$itk_option(-thickness) / 2}]
- } {
- keep -background -cursor
- }
-
- lappend _separators separator$id
- }
- }
-
- # ------------------------------------------------------------------
- # PRIVATE METHOD: _placeSash i
- #
- # Places the position of the sash and separator.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_placeSash {i} {
- if {$itk_option(-orient) == "horizontal"} {
- place $itk_component(separator$i) -in $itk_component(hull) \
- -x 0 -relwidth 1 -rely $_frac($i) -anchor w \
- -height $itk_option(-thickness)
-
- if {$itk_option(-sashindent) < 0} {
- set sashPos [expr {$_width + $itk_option(-sashindent)}]
- set sashAnchor e
- } else {
- set sashPos $itk_option(-sashindent)
- set sashAnchor w
- }
-
- if {$itk_option(-showhandle)} {
- place $itk_component(sash$i) -in $itk_component(hull) \
- -x $sashPos -rely $_frac($i) -anchor $sashAnchor
- } else {
- place $itk_component(sash$i) -in $itk_component(hull) \
- -x 0 -relwidth 1 -rely $_frac($i) -anchor w \
- -height $itk_option(-thickness)
- }
-
- } else {
- place $itk_component(separator$i) -in $itk_component(hull) \
- -y 0 -relheight 1 -relx $_frac($i) -anchor n \
- -width $itk_option(-thickness)
-
- if {$itk_option(-sashindent) < 0} {
- set sashPos [expr {$_height + $itk_option(-sashindent)}]
- set sashAnchor s
- } else {
- set sashPos $itk_option(-sashindent)
- set sashAnchor n
- }
-
- if {$itk_option(-showhandle)} {
-
- place $itk_component(sash$i) -in $itk_component(hull) \
- -y $sashPos -relx $_frac($i) -anchor $sashAnchor
- } else {
- place $itk_component(sash$i) -in $itk_component(hull) \
- -y 0 -relheight 1 -relx $_frac($i) -anchor n \
- -width $itk_option(-thickness)
- }
- }
- }
-
- # ------------------------------------------------------------------
- # PRIVATE METHOD: _placePanes
- #
- # Resets the panes of the window following movement of the sash.
- # ------------------------------------------------------------------
- itcl::body iwidgets::Panedwindow::_placePanes {{start 0} {end end}} {
- if {$end=="end"} { set end [expr {[llength $_activePanes] - 1}] }
- set _updatePanes [lrange $_activePanes $start $end]
- if {$_updatePanes == $_activePanes} {
- set _forgetPanes $_panes
- } {
- set _forgetPanes $_updatePanes
- }
- foreach pane $_forgetPanes {
- place forget $itk_component($pane)
- }
-
-
- if {$itk_option(-orient) == "horizontal"} {
- set i $start
- foreach pane $_updatePanes {
- place $itk_component($pane) -in $itk_component(hull) \
- -x 0 -rely $_frac($i) -relwidth 1 \
- -relheight [expr {$_frac([expr {$i + 1}]) - $_frac($i)}]
- incr i
- }
-
- } else {
- set i $start
- foreach pane $_updatePanes {
- place $itk_component($pane) -in $itk_component(hull) \
- -y 0 -relx $_frac($i) -relheight 1 \
- -relwidth [expr {$_frac([expr {$i + 1}]) - $_frac($i)}]
- incr i
- }
-
- }
-
- for {set i [expr {$start+1}]} {$i <= $end} {incr i} {
- if {[array names itk_component separator$i] != ""} {
- _placeSash $i
- raise $itk_component(separator$i)
- raise $itk_component(sash$i)
- }
- }
- }
-