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- # ------------------------------------------------------------------------------
- # listbox.tcl
- # This file is part of Unifix BWidget Toolkit
- # $Id: listbox.tcl,v 1.1.1.1 1996/02/22 06:05:56 daniel Exp $
- # ------------------------------------------------------------------------------
- # Index of commands:
- # - ListBox::create
- # - ListBox::configure
- # - ListBox::cget
- # - ListBox::insert
- # - ListBox::itemconfigure
- # - ListBox::itemcget
- # - ListBox::bindText
- # - ListBox::bindImage
- # - ListBox::delete
- # - ListBox::move
- # - ListBox::reorder
- # - ListBox::selection
- # - ListBox::exists
- # - ListBox::index
- # - ListBox::items
- # - ListBox::see
- # - ListBox::edit
- # - ListBox::xview
- # - ListBox::yview
- # - ListBox::_update_edit_size
- # - ListBox::_destroy
- # - ListBox::_see
- # - ListBox::_update_scrollregion
- # - ListBox::_draw_item
- # - ListBox::_redraw_items
- # - ListBox::_redraw_selection
- # - ListBox::_redraw_listbox
- # - ListBox::_redraw_idle
- # - ListBox::_resize
- # - ListBox::_init_drag_cmd
- # - ListBox::_drop_cmd
- # - ListBox::_over_cmd
- # - ListBox::_auto_scroll
- # - ListBox::_scroll
- # ------------------------------------------------------------------------------
-
-
- namespace eval ListBox {
- namespace eval Item {
- Widget::declare ListBox::Item {
- {-indent Int 0 0 {=0}}
- {-text String "" 0}
- {-font TkResource "" 0 listbox}
- {-image TkResource "" 0 label}
- {-window String "" 0}
- {-fill TkResource black 0 {listbox -foreground}}
- {-data String "" 0}
- }
- }
-
- Widget::tkinclude ListBox canvas :cmd \
- remove {-insertwidth -insertbackground -insertborderwidth -insertofftime \
- -insertontime -selectborderwidth -closeenough -confine -scrollregion \
- -xscrollincrement -yscrollincrement -width -height} \
- initialize {-relief sunken -borderwidth 2 -takefocus 1 \
- -highlightthickness 1 -width 200}
-
- Widget::declare ListBox {
- {-deltax Int 10 0 {=0 ""}}
- {-deltay Int 15 0 {=0 ""}}
- {-padx Int 20 0 {=0 ""}}
- {-background TkResource "" 0 listbox}
- {-selectbackground TkResource "" 0 listbox}
- {-selectforeground TkResource "" 0 listbox}
- {-width TkResource "" 0 listbox}
- {-height TkResource "" 0 listbox}
- {-redraw Boolean 1 0}
- {-multicolumn Boolean 0 0}
- {-dropovermode Flag "wpi" 0 "wpi"}
- {-bg Synonym -background}
- }
- DragSite::include ListBox "LISTBOX_ITEM" 1
- DropSite::include ListBox {
- LISTBOX_ITEM {copy {} move {}}
- }
-
- Widget::addmap ListBox "" :cmd {-deltay -yscrollincrement}
-
- proc ::ListBox { path args } { return [eval ListBox::create $path $args] }
- proc use {} {}
-
- variable _edit
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::create
- # ------------------------------------------------------------------------------
- proc ListBox::create { path args } {
- Widget::init ListBox $path $args
-
- variable $path
- upvar 0 $path data
-
- # widget informations
- set data(nrows) -1
-
- # items informations
- set data(items) {}
- set data(selitems) {}
-
- # update informations
- set data(upd,level) 0
- set data(upd,afterid) ""
- set data(upd,level) 0
- set data(upd,delete) {}
-
- # drag and drop informations
- set data(dnd,scroll) ""
- set data(dnd,afterid) ""
- set data(dnd,item) ""
-
- eval canvas $path [Widget::subcget $path :cmd] \
- -width [expr {[Widget::getoption $path -width]*8}] \
- -height [expr {[Widget::getoption $path -height]*[Widget::getoption $path -deltay]}] \
- -xscrollincrement 8
-
- bind $path <Configure> "ListBox::_resize $path"
- bind $path <Destroy> "ListBox::_destroy $path"
-
- DragSite::setdrag $path $path ListBox::_init_drag_cmd [Widget::getoption $path -dragendcmd] 1
- DropSite::setdrop $path $path ListBox::_over_cmd ListBox::_drop_cmd 1
-
- rename $path ::$path:cmd
- proc ::$path { cmd args } "return \[eval ListBox::\$cmd $path \$args\]"
-
- return $path
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::configure
- # ------------------------------------------------------------------------------
- proc ListBox::configure { path args } {
- set res [Widget::configure $path $args]
-
- set ch1 [expr {[Widget::hasChanged $path -deltay dy] |
- [Widget::hasChanged $path -padx val] |
- [Widget::hasChanged $path -multicolumn val]}]
-
- set ch2 [expr {[Widget::hasChanged $path -selectbackground val] |
- [Widget::hasChanged $path -selectforeground val]}]
-
- set redraw 0
- if { [Widget::hasChanged $path -height h] } {
- $path:cmd configure -height [expr {$h*$dy}]
- set redraw 1
- }
- if { [Widget::hasChanged $path -width w] } {
- $path:cmd configure -width [expr {$w*8}]
- set redraw 1
- }
-
- if { !$redraw } {
- if { $ch1 } {
- _redraw_idle $path 2
- } elseif { $ch2 } {
- _redraw_idle $path 1
- }
- }
-
- if { [Widget::hasChanged $path -redraw bool] && $bool } {
- variable $path
- upvar 0 $path data
- set lvl $data(upd,level)
- set data(upd,level) 0
- _redraw_idle $path $lvl
- }
- set force [Widget::hasChanged $path -dragendcmd dragend]
- DragSite::setdrag $path $path ListBox::_init_drag_cmd $dragend $force
- DropSite::setdrop $path $path ListBox::_over_cmd ListBox::_drop_cmd
-
- return $res
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::cget
- # ------------------------------------------------------------------------------
- proc ListBox::cget { path option } {
- return [Widget::cget $path $option]
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::insert
- # ------------------------------------------------------------------------------
- proc ListBox::insert { path index item args } {
- variable $path
- upvar 0 $path data
-
- if { [lsearch $data(items) $item] != -1 } {
- return -code error "item \"$item\" already exists"
- }
-
- Widget::init ListBox::Item $path.$item $args
-
- if { ![string compare $index "end"] } {
- lappend data(items) $item
- } else {
- set data(items) [linsert $data(items) $index $item]
- }
- set data(upd,create,$item) $item
-
- _redraw_idle $path 2
- return $item
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::itemconfigure
- # ------------------------------------------------------------------------------
- proc ListBox::itemconfigure { path item args } {
- variable $path
- upvar 0 $path data
-
- if { [lsearch $data(items) $item] == -1 } {
- return -code error "item \"$item\" does not exist"
- }
-
- set oldind [Widget::getoption $path.$item -indent]
-
- set res [Widget::configure $path.$item $args]
- set chind [Widget::hasChanged $path.$item -indent indent]
- set chw [Widget::hasChanged $path.$item -window win]
- set chi [Widget::hasChanged $path.$item -image img]
- set cht [Widget::hasChanged $path.$item -text txt]
- set chf [Widget::hasChanged $path.$item -font fnt]
- set chfg [Widget::hasChanged $path.$item -fill fg]
- set idn [$path:cmd find withtag n:$item]
-
- if { $idn == "" } {
- # item is not drawn yet
- _redraw_idle $path 2
- return $res
- }
-
- set oldb [$path:cmd bbox $idn]
- set coords [$path:cmd coords $idn]
- set padx [Widget::getoption $path -padx]
- set x0 [expr {[lindex $coords 0]-$padx-$oldind+$indent}]
- set y0 [lindex $coords 1]
- if { $chw || $chi } {
- # -window or -image modified
- set idi [$path:cmd find withtag i:$item]
- set type [lindex [$path:cmd gettags $idi] 0]
- if { [string length $win] } {
- if { ![string compare $type "win"] } {
- $path:cmd itemconfigure $idi -window $win
- } else {
- $path:cmd delete $idi
- $path:cmd create window $x0 $y0 -window $win -anchor w -tags "win i:$item"
- }
- } elseif { [string length $img] } {
- if { ![string compare $type "img"] } {
- $path:cmd itemconfigure $idi -image $img
- } else {
- $path:cmd delete $idi
- $path:cmd create image $x0 $y0 -image $img -anchor w -tags "img i:$item"
- }
- } else {
- $path:cmd delete $idi
- }
- }
-
- if { $cht || $chf || $chfg } {
- # -text or -font modified, or -fill modified
- $path:cmd itemconfigure $idn -text $txt -font $fnt -fill $fg
- _redraw_idle $path 1
- }
-
- if { $chind } {
- # -indent modified
- $path:cmd coords $idn [expr {$x0+$padx}] $y0
- $path:cmd coords i:$item $x0 $y0
- _redraw_idle $path 1
- }
-
- if { [Widget::getoption $path -multicolumn] && ($cht || $chf || $chind) } {
- set bbox [$path:cmd bbox $idn]
- if { [lindex $bbox 2] > [lindex $oldb 2] } {
- _redraw_idle $path 2
- }
- }
-
- return $res
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::itemcget
- # ------------------------------------------------------------------------------
- proc ListBox::itemcget { path item option } {
- return [Widget::cget $path.$item $option]
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::bindText
- # ------------------------------------------------------------------------------
- proc ListBox::bindText { path event script } {
- if { $script != "" } {
- $path:cmd bind "item" $event \
- "$script \[string range \[lindex \[$path:cmd gettags current\] 1\] 2 end\]"
- } else {
- $path:cmd bind "item" $event {}
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::bindImage
- # ------------------------------------------------------------------------------
- proc ListBox::bindImage { path event script } {
- if { $script != "" } {
- $path:cmd bind "img" $event \
- "$script \[string range \[lindex \[$path:cmd gettags current\] 1\] 2 end\]"
- } else {
- $path:cmd bind "img" $event {}
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::delete
- # ------------------------------------------------------------------------------
- proc ListBox::delete { path args } {
- variable $path
- upvar 0 $path data
-
- foreach litems $args {
- foreach item $litems {
- set idx [lsearch $data(items) $item]
- if { $idx != -1 } {
- set data(items) [lreplace $data(items) $idx $idx]
- Widget::destroy $path.$item
- if { [info exists data(upd,create,$item)] } {
- unset data(upd,create,$item)
- } else {
- lappend data(upd,delete) $item
- }
- }
- }
- }
-
- set sel $data(selitems)
- set data(selitems) {}
- eval selection $path set $sel
- _redraw_idle $path 2
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::move
- # ------------------------------------------------------------------------------
- proc ListBox::move { path item index } {
- variable $path
- upvar 0 $path data
-
- if { [set idx [lsearch $data(items) $item]] == -1 } {
- return -code error "item \"$item\" does not exist"
- }
-
- set data(items) [lreplace $data(items) $idx $idx]
- if { ![string compare $index "end"] } {
- lappend data($path,item) $item
- } else {
- set data(items) [linsert $data(items) $index $item]
- }
-
- _redraw_idle $path 2
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::reorder
- # ------------------------------------------------------------------------------
- proc ListBox::reorder { path neworder } {
- variable $path
- upvar 0 $path data
-
- set data(items) [BWidget::lreorder $data(items) $neworder]
- _redraw_idle $path 2
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::selection
- # ------------------------------------------------------------------------------
- proc ListBox::selection { path cmd args } {
- variable $path
- upvar 0 $path data
-
- switch -- $cmd {
- set {
- set data(selitems) {}
- foreach item $args {
- if { [lsearch $data(selitems) $item] == -1 } {
- if { [lsearch $data(items) $item] != -1 } {
- lappend data(selitems) $item
- }
- }
- }
- }
- add {
- foreach item $args {
- if { [lsearch $data(selitems) $item] == -1 } {
- if { [lsearch $data(items) $item] != -1 } {
- lappend data(selitems) $item
- }
- }
- }
- }
- remove {
- foreach item $args {
- if { [set idx [lsearch $data(selitems) $item]] != -1 } {
- set data(selitems) [lreplace $data(selitems) $idx $idx]
- }
- }
- }
- clear {
- set data(selitems) {}
- }
- get {
- return $data(selitems)
- }
- default {
- return
- }
- }
- _redraw_idle $path 1
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::exists
- # ------------------------------------------------------------------------------
- proc ListBox::exists { path item } {
- variable $path
- upvar 0 $path data
-
- return [expr {[lsearch $data(items) $item] != -1}]
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::index
- # ------------------------------------------------------------------------------
- proc ListBox::index { path item } {
- variable $path
- upvar 0 $path data
-
- return [lsearch $data(items) $item]
- }
-
-
- proc ListBox::item { path first {last ""} } {
- variable $path
- upvar 0 $path data
-
- if { ![string length $last] } {
- return [lindex $data(items) $first]
- } else {
- return [lrange $data(items) $first $last]
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::items
- # ------------------------------------------------------------------------------
- proc ListBox::items { path } {
- variable $path
- upvar 0 $path data
-
- return $data(items)
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::see
- # ------------------------------------------------------------------------------
- proc ListBox::see { path item } {
- set idn [$path:cmd find withtag n:$item]
- if { $idn != "" } {
- ListBox::_see $path $idn left
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::edit
- # ------------------------------------------------------------------------------
- proc ListBox::edit { path item text {verifycmd ""} {clickres 0} {select 1}} {
- variable _edit
-
- set idn [$path:cmd find withtag n:$item]
- if { $idn != "" } {
- ListBox::_see $path $idn right
- ListBox::_see $path $idn left
-
- set oldfg [$path:cmd itemcget $idn -fill]
- set sbg [Widget::getoption $path -selectbackground]
- set coords [$path:cmd coords $idn]
- set x [lindex $coords 0]
- set y [lindex $coords 1]
- set bd [expr {[$path:cmd cget -borderwidth]+[$path:cmd cget -highlightthickness]}]
- set w [expr {[winfo width $path] - 2*$bd}]
- set wmax [expr {[$path:cmd canvasx $w]-$x}]
-
- $path:cmd itemconfigure $idn -fill [Widget::getoption $path -background]
- $path:cmd itemconfigure s:$item -fill {} -outline {}
-
- set _edit(text) $text
- set _edit(wait) 0
-
- set frame [frame $path.edit \
- -relief flat -borderwidth 0 -highlightthickness 0 \
- -background [Widget::getoption $path -background]]
- set ent [entry $frame.edit \
- -width 0 \
- -relief solid \
- -borderwidth 1 \
- -highlightthickness 0 \
- -foreground [Widget::getoption $path.$item -fill] \
- -background [Widget::getoption $path -background] \
- -selectforeground [Widget::getoption $path -selectforeground] \
- -selectbackground $sbg \
- -font [Widget::getoption $path.$item -font] \
- -textvariable ListBox::_edit(text)]
- pack $ent -ipadx 8 -anchor w
-
- set idw [$path:cmd create window $x $y -window $frame -anchor w]
- trace variable ListBox::_edit(text) w "ListBox::_update_edit_size $path $ent $idw $wmax"
- tkwait visibility $ent
- grab $frame
- BWidget::focus set $ent
- _update_edit_size $path $ent $idw $wmax
- update
- if { $select } {
- $ent selection from 0
- $ent selection to end
- $ent icursor end
- $ent xview end
- }
-
- bind $ent <Escape> {set ListBox::_edit(wait) 0}
- bind $ent <Return> {set ListBox::_edit(wait) 1}
- if { $clickres == 0 || $clickres == 1 } {
- bind $frame <Button> "set ListBox::_edit(wait) $clickres"
- }
-
- set ok 0
- while { !$ok } {
- tkwait variable ListBox::_edit(wait)
- if { !$_edit(wait) || $verifycmd == "" ||
- [uplevel \#0 $verifycmd [list $_edit(text)]] } {
- set ok 1
- }
- }
- trace vdelete ListBox::_edit(text) w "ListBox::_update_edit_size $path $ent $idw $wmax"
- grab release $frame
- BWidget::focus release $ent
- destroy $frame
- $path:cmd delete $idw
- $path:cmd itemconfigure $idn -fill $oldfg
- $path:cmd itemconfigure s:$item -fill $sbg -outline $sbg
-
- if { $_edit(wait) } {
- return $_edit(text)
- }
- }
- return ""
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::xview
- # ------------------------------------------------------------------------------
- proc ListBox::xview { path args } {
- return [eval $path:cmd xview $args]
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::yview
- # ------------------------------------------------------------------------------
- proc ListBox::yview { path args } {
- return [eval $path:cmd yview $args]
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_update_edit_size
- # ------------------------------------------------------------------------------
- proc ListBox::_update_edit_size { path entry idw wmax args } {
- set entw [winfo reqwidth $entry]
- if { $entw >= $wmax } {
- $path:cmd itemconfigure $idw -width $wmax
- } else {
- $path:cmd itemconfigure $idw -width 0
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_destroy
- # ------------------------------------------------------------------------------
- proc ListBox::_destroy { path } {
- variable $path
- upvar 0 $path data
-
- if { $data(upd,afterid) != "" } {
- after cancel $data(upd,afterid)
- }
- if { $data(dnd,afterid) != "" } {
- after cancel $data(dnd,afterid)
- }
- foreach item $data(items) {
- Widget::destroy $path.$item
- }
-
- Widget::destroy $path
- unset data
- rename $path {}
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_see
- # ------------------------------------------------------------------------------
- proc ListBox::_see { path idn side } {
- set bbox [$path:cmd bbox $idn]
- set scrl [$path:cmd cget -scrollregion]
-
- set ymax [lindex $scrl 3]
- set dy [$path:cmd cget -yscrollincrement]
- set yv [$path:cmd yview]
- set yv0 [expr {round([lindex $yv 0]*$ymax/$dy)}]
- set yv1 [expr {round([lindex $yv 1]*$ymax/$dy)}]
- set y [expr {int([lindex [$path:cmd coords $idn] 1]/$dy)}]
- if { $y < $yv0 } {
- $path:cmd yview scroll [expr {$y-$yv0}] units
- } elseif { $y >= $yv1 } {
- $path:cmd yview scroll [expr {$y-$yv1+1}] units
- }
-
- set xmax [lindex $scrl 2]
- set dx [$path:cmd cget -xscrollincrement]
- set xv [$path:cmd xview]
- if { ![string compare $side "right"] } {
- set xv1 [expr {round([lindex $xv 1]*$xmax/$dx)}]
- set x1 [expr {int([lindex $bbox 2]/$dx)}]
- if { $x1 >= $xv1 } {
- $path:cmd xview scroll [expr {$x1-$xv1+1}] units
- }
- } else {
- set xv0 [expr {round([lindex $xv 0]*$xmax/$dx)}]
- set x0 [expr {int([lindex $bbox 0]/$dx)}]
- if { $x0 < $xv0 } {
- $path:cmd xview scroll [expr {$x0-$xv0}] units
- }
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_update_scrollregion
- # ------------------------------------------------------------------------------
- proc ListBox::_update_scrollregion { path } {
- set bd [expr {2*([$path:cmd cget -borderwidth]+[$path:cmd cget -highlightthickness])}]
- set w [expr {[winfo width $path] - $bd}]
- set h [expr {[winfo height $path] - $bd}]
- set xinc [$path:cmd cget -xscrollincrement]
- set yinc [$path:cmd cget -yscrollincrement]
- set bbox [$path:cmd bbox all]
- if { [llength $bbox] } {
- set xs [lindex $bbox 2]
- set ys [lindex $bbox 3]
-
- if { $w < $xs } {
- set w [expr {int($xs)}]
- if { [set r [expr {$w % $xinc}]] } {
- set w [expr {$w+$xinc-$r}]
- }
- }
- if { $h < $ys } {
- set h [expr {int($ys)}]
- if { [set r [expr {$h % $yinc}]] } {
- set h [expr {$h+$yinc-$r}]
- }
- }
- }
-
- $path:cmd configure -scrollregion [list 0 0 $w $h]
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_draw_item
- # ------------------------------------------------------------------------------
- proc ListBox::_draw_item { path item x0 x1 y } {
- set indent [Widget::getoption $path.$item -indent]
- $path:cmd create text [expr {$x1+$indent}] $y \
- -text [Widget::getoption $path.$item -text] \
- -fill [Widget::getoption $path.$item -fill] \
- -font [Widget::getoption $path.$item -font] \
- -anchor w \
- -tags "item n:$item"
- if { [set win [Widget::getoption $path.$item -window]] != "" } {
- $path:cmd create window [expr {$x0+$indent}] $y \
- -window $win -anchor w -tags "win i:$item"
- } elseif { [set img [Widget::getoption $path.$item -image]] != "" } {
- $path:cmd create image [expr {$x0+$indent}] $y \
- -image $img -anchor w -tags "img i:$item"
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_redraw_items
- # ------------------------------------------------------------------------------
- proc ListBox::_redraw_items { path } {
- variable $path
- upvar 0 $path data
-
- $path:cmd configure -cursor watch
- set dx [Widget::getoption $path -deltax]
- set dy [Widget::getoption $path -deltay]
- set padx [Widget::getoption $path -padx]
- set y0 [expr {$dy/2}]
- set x0 4
- set x1 [expr {$x0+$padx}]
- set nitem 0
- set drawn {}
- set data(xlist) {}
- if { [Widget::getoption $path -multicolumn] } {
- set nrows $data(nrows)
- } else {
- set nrows [llength $data(items)]
- }
- foreach item $data(upd,delete) {
- $path:cmd delete i:$item n:$item s:$item
- }
- foreach item $data(items) {
- if { [info exists data(upd,create,$item)] } {
- _draw_item $path $item $x0 $x1 $y0
- unset data(upd,create,$item)
- } else {
- set indent [Widget::getoption $path.$item -indent]
- $path:cmd coords n:$item [expr {$x1+$indent}] $y0
- $path:cmd coords i:$item [expr {$x0+$indent}] $y0
- }
- incr y0 $dy
- incr nitem
- lappend drawn n:$item
- if { $nitem == $nrows } {
- set y0 [expr {$dy/2}]
- set bbox [eval $path:cmd bbox $drawn]
- set drawn {}
- set x0 [expr {[lindex $bbox 2]+$dx}]
- set x1 [expr {$x0+$padx}]
- set nitem 0
- lappend data(xlist) [lindex $bbox 2]
- }
- }
- if { $nitem && $nitem < $nrows } {
- set bbox [eval $path:cmd bbox $drawn]
- lappend data(xlist) [lindex $bbox 2]
- }
- set data(upd,delete) {}
- $path:cmd configure -cursor [Widget::getoption $path -cursor]
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_redraw_selection
- # ------------------------------------------------------------------------------
- proc ListBox::_redraw_selection { path } {
- variable $path
- upvar 0 $path data
-
- set selbg [Widget::getoption $path -selectbackground]
- set selfg [Widget::getoption $path -selectforeground]
- foreach id [$path:cmd find withtag sel] {
- set item [string range [lindex [$path:cmd gettags $id] 1] 2 end]
- $path:cmd itemconfigure "n:$item" -fill [Widget::getoption $path.$item -fill]
- }
- $path:cmd delete sel
- foreach item $data(selitems) {
- set bbox [$path:cmd bbox "n:$item"]
- set w [expr [winfo width $path] - 4 ]
- set bbox [list [$path:cmd canvasx 4] [lindex $bbox 1] \
- [$path:cmd canvasx $w] [lindex $bbox 3]]
-
- # Change bbox to fill
-
- if { [llength $bbox] } {
- set id [eval $path:cmd create rectangle $bbox -fill $selbg -outline $selbg -tags [list "sel s:$item"]]
- $path:cmd itemconfigure "n:$item" -fill $selfg
- $path:cmd lower $id
- }
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_redraw_listbox
- # ------------------------------------------------------------------------------
- proc ListBox::_redraw_listbox { path } {
- variable $path
- upvar 0 $path data
-
- if { [Widget::getoption $path -redraw] } {
- if { $data(upd,level) == 2 } {
- _redraw_items $path
- }
- _redraw_selection $path
- _update_scrollregion $path
- set data(upd,level) 0
- set data(upd,afterid) ""
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_redraw_idle
- # ------------------------------------------------------------------------------
- proc ListBox::_redraw_idle { path level } {
- variable $path
- upvar 0 $path data
-
- if { $data(nrows) != -1 } {
- # widget is realized
- if { [Widget::getoption $path -redraw] && $data(upd,afterid) == "" } {
- set data(upd,afterid) [after idle ListBox::_redraw_listbox $path]
- }
- }
- if { $level > $data(upd,level) } {
- set data(upd,level) $level
- }
- return ""
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_resize
- # ------------------------------------------------------------------------------
- proc ListBox::_resize { path } {
- variable $path
- upvar 0 $path data
-
- if { [Widget::getoption $path -multicolumn] } {
- set bd [expr {[$path:cmd cget -borderwidth]+[$path:cmd cget -highlightthickness]}]
- set h [expr {[winfo height $path] - 2*$bd}]
- set nrows [expr {$h/[$path:cmd cget -yscrollincrement]}]
- if { $nrows == 0 } {
- set nrows 1
- }
- if { $nrows != $data(nrows) } {
- set data(nrows) $nrows
- _redraw_idle $path 2
- } else {
- _update_scrollregion $path
- }
- } elseif { $data(nrows) == -1 } {
- # first Configure event
- set data(nrows) 0
- ListBox::_redraw_listbox $path
- } else {
- _update_scrollregion $path
- }
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_init_drag_cmd
- # ------------------------------------------------------------------------------
- proc ListBox::_init_drag_cmd { path X Y top } {
- set ltags [$path:cmd gettags current]
- set item [lindex $ltags 0]
- if { ![string compare $item "item"] ||
- ![string compare $item "img"] ||
- ![string compare $item "win"] } {
- set item [string range [lindex $ltags 1] 2 end]
- if { [set cmd [Widget::getoption $path -draginitcmd]] != "" } {
- return [uplevel \#0 $cmd [list $path $item $top]]
- }
- if { [set type [Widget::getoption $path -dragtype]] == "" } {
- set type "LISTBOX_ITEM"
- }
- if { [set img [Widget::getoption $path.$item -image]] != "" } {
- pack [label $top.l -image $img -padx 0 -pady 0]
- }
- return [list $type {copy move link} $item]
- }
- return {}
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_drop_cmd
- # ------------------------------------------------------------------------------
- proc ListBox::_drop_cmd { path source X Y op type dnddata } {
- variable $path
- upvar 0 $path data
-
- if { [string length $data(dnd,afterid)] } {
- after cancel $data(dnd,afterid)
- set data(dnd,afterid) ""
- }
- $path:cmd delete drop
- set data(dnd,scroll) ""
- if { [llength $data(dnd,item)] } {
- if { [set cmd [Widget::getoption $path -dropcmd]] != "" } {
- return [uplevel \#0 $cmd [list $path $source $data(dnd,item) $op $type $dnddata]]
- }
- }
- return 0
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_over_cmd
- # ------------------------------------------------------------------------------
- proc ListBox::_over_cmd { path source event X Y op type dnddata } {
- variable $path
- upvar 0 $path data
-
- if { ![string compare $event "leave"] } {
- # we leave the window listbox
- $path:cmd delete drop
- if { [string length $data(dnd,afterid)] } {
- after cancel $data(dnd,afterid)
- set data(dnd,afterid) ""
- }
- set data(dnd,scroll) ""
- return 0
- }
-
- if { ![string compare $event "enter"] } {
- # we enter the window listbox - dnd data initialization
- set mode [Widget::getoption $path -dropovermode]
- set data(dnd,mode) 0
- foreach c {w p i} {
- set data(dnd,mode) [expr {($data(dnd,mode) << 1) | ([string first $c $mode] != -1)}]
- }
- }
-
- set x [expr {$X-[winfo rootx $path]}]
- set y [expr {$Y-[winfo rooty $path]}]
- $path:cmd delete drop
- set data(dnd,item) ""
-
- # test for auto-scroll unless mode is widget only
- if { $data(dnd,mode) != 4 && [_auto_scroll $path $x $y] != "" } {
- return 2
- }
-
- if { $data(dnd,mode) & 4 } {
- # dropovermode includes widget
- set target [list widget]
- set vmode 4
- } else {
- set target [list ""]
- set vmode 0
- }
-
- if { $data(dnd,mode) & 3 } {
- # dropovermode includes item or position
- # we extract the box (xi,yi,xs,ys) where we can find item around x,y
- set len [llength $data(items)]
- set xc [$path:cmd canvasx $x]
- set yc [$path:cmd canvasy $y]
- set dy [$path:cmd cget -yscrollincrement]
- set line [expr {int($yc/$dy)}]
- set yi [expr {$line*$dy}]
- set ys [expr {$yi+$dy}]
- set xi 0
- set pos $line
- if { [Widget::getoption $path -multicolumn] } {
- set nrows $data(nrows)
- } else {
- set nrows $len
- }
- if { $line < $nrows } {
- foreach xs $data(xlist) {
- if { $xc <= $xs } {
- break
- }
- set xi $xs
- incr pos $nrows
- }
- if { $pos < $len } {
- set item [lindex $data(items) $pos]
- if { $data(dnd,mode) & 1 } {
- # dropovermode includes item
- lappend target $item
- set vmode [expr {$vmode | 1}]
- } else {
- lappend target ""
- }
-
- if { $data(dnd,mode) & 2 } {
- # dropovermode includes position
- if { $yc >= $yi+$dy/2 } {
- # position is after $item
- incr pos
- set yl $ys
- } else {
- # position is before $item
- set yl $yi
- }
- lappend target $pos
- set vmode [expr {$vmode | 2}]
- } else {
- lappend target ""
- }
- } else {
- lappend target "" ""
- }
- } else {
- lappend target "" ""
- }
-
- if { ($vmode & 3) == 3 } {
- # result have both item and position
- # we compute what is the preferred method
- if { $yc-$yi <= 3 || $ys-$yc <= 3 } {
- lappend target "position"
- } else {
- lappend target "item"
- }
- }
- }
-
- if { $vmode && [set cmd [Widget::getoption $path -dropovercmd]] != "" } {
- # user-defined dropover command
- set res [uplevel \#0 $cmd [list $source $target $op $type $dnddata]]
- set code [lindex $res 0]
- set vmode 0
- if { $code & 1 } {
- # update vmode
- set mode [lindex $res 1]
- if { ![string compare $mode "item"] } {
- set vmode 1
- } elseif { ![string compare $mode "position"] } {
- set vmode 2
- } elseif { ![string compare $mode "widget"] } {
- set vmode 4
- }
- }
- } else {
- if { ($vmode & 3) == 3 } {
- # result have both item and position
- # we choose the preferred method
- if { ![string compare [lindex $target 3] "position"] } {
- set vmode [expr {$vmode & ~1}]
- } else {
- set vmode [expr {$vmode & ~2}]
- }
- }
-
- if { $data(dnd,mode) == 4 || $data(dnd,mode) == 0 } {
- # dropovermode is widget or empty - recall is not necessary
- set code 1
- } else {
- set code 3
- }
- }
-
- # draw dnd visual following vmode
- if { $vmode & 1 } {
- set data(dnd,item) [list "item" [lindex $target 1]]
- $path:cmd create rectangle $xi $yi $xs $ys -tags drop
- } elseif { $vmode & 2 } {
- set data(dnd,item) [concat "position" [lindex $target 2]]
- $path:cmd create line $xi $yl $xs $yl -tags drop
- } elseif { $vmode & 4 } {
- set data(dnd,item) [list "widget"]
- } else {
- set code [expr {$code & 2}]
- }
-
- if { $code & 1 } {
- DropSite::setcursor based_arrow_down
- } else {
- DropSite::setcursor dot
- }
- return $code
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_auto_scroll
- # ------------------------------------------------------------------------------
- proc ListBox::_auto_scroll { path x y } {
- variable $path
- upvar 0 $path data
-
- set xmax [winfo width $path]
- set ymax [winfo height $path]
- set scroll {}
- if { $y <= 6 } {
- if { [lindex [$path:cmd yview] 0] > 0 } {
- set scroll [list yview -1]
- DropSite::setcursor sb_up_arrow
- }
- } elseif { $y >= $ymax-6 } {
- if { [lindex [$path:cmd yview] 1] < 1 } {
- set scroll [list yview 1]
- DropSite::setcursor sb_down_arrow
- }
- } elseif { $x <= 6 } {
- if { [lindex [$path:cmd xview] 0] > 0 } {
- set scroll [list xview -1]
- DropSite::setcursor sb_left_arrow
- }
- } elseif { $x >= $xmax-6 } {
- if { [lindex [$path:cmd xview] 1] < 1 } {
- set scroll [list xview 1]
- DropSite::setcursor sb_right_arrow
- }
- }
-
- if { [string length $data(dnd,afterid)] && [string compare $data(dnd,scroll) $scroll] } {
- after cancel $data(dnd,afterid)
- set data(dnd,afterid) ""
- }
-
- set data(dnd,scroll) $scroll
- if { [llength $scroll] && ![string length $data(dnd,afterid)] } {
- set data(dnd,afterid) [after 200 ListBox::_scroll $path $scroll]
- }
- return $data(dnd,afterid)
- }
-
-
- # ------------------------------------------------------------------------------
- # Command ListBox::_scroll
- # ------------------------------------------------------------------------------
- proc ListBox::_scroll { path cmd dir } {
- variable $path
- upvar 0 $path data
-
- if { ($dir == -1 && [lindex [$path:cmd $cmd] 0] > 0) ||
- ($dir == 1 && [lindex [$path:cmd $cmd] 1] < 1) } {
- $path $cmd scroll $dir units
- set data(dnd,afterid) [after 100 ListBox::_scroll $path $cmd $dir]
- } else {
- set data(dnd,afterid) ""
- DropSite::setcursor dot
- }
- }
-