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# ------------------------------------------------------------------------------
# buttonbox.tcl
# This file is part of Unifix BWidget Toolkit
# ------------------------------------------------------------------------------
# Index of commands:
# - ButtonBox::create
# - ButtonBox::configure
# - ButtonBox::cget
# - ButtonBox::add
# - ButtonBox::itemconfigure
# - ButtonBox::itemcget
# - ButtonBox::setfocus
# - ButtonBox::invoke
# - ButtonBox::index
# - ButtonBox::_destroy
# ------------------------------------------------------------------------------
namespace eval ButtonBox {
Button::use
Widget::declare ButtonBox {
{-background TkResource "" 0 frame}
{-orient Enum horizontal 1 {horizontal vertical}}
{-homogeneous Boolean 1 1}
{-spacing Int 10 0 "%d >= 0"}
{-padx TkResource "" 0 button}
{-pady TkResource "" 0 button}
{-default Int -1 0 "%d >= -1"}
{-bg Synonym -background}
}
Widget::addmap ButtonBox "" :cmd {-background {}}
proc ::ButtonBox { path args } { return [eval ButtonBox::create $path $args] }
proc use {} {}
}
# ------------------------------------------------------------------------------
# Command ButtonBox::create
# ------------------------------------------------------------------------------
proc ButtonBox::create { path args } {
Widget::init ButtonBox $path $args
variable $path
upvar 0 $path data
eval frame $path [Widget::subcget $path :cmd] -takefocus 0 -highlightthickness 0
set data(default) [Widget::getoption $path -default]
set data(nbuttons) 0
set data(max) 0
bind $path <Destroy> "ButtonBox::_destroy $path"
rename $path ::$path:cmd
proc ::$path { cmd args } "return \[eval ButtonBox::\$cmd $path \$args\]"
return $path
}
# ------------------------------------------------------------------------------
# Command ButtonBox::configure
# ------------------------------------------------------------------------------
proc ButtonBox::configure { path args } {
variable $path
upvar 0 $path data
set res [Widget::configure $path $args]
if { [Widget::hasChanged $path -default val] } {
if { $data(default) != -1 && $val != -1 } {
set but $path.b$data(default)
if { [winfo exists $but] } {
$but configure -default normal
}
set but $path.b$val
if { [winfo exists $but] } {
$but configure -default active
}
set data(default) $val
} else {
Widget::setoption $path -default $data(default)
}
}
return $res
}
# ------------------------------------------------------------------------------
# Command ButtonBox::cget
# ------------------------------------------------------------------------------
proc ButtonBox::cget { path option } {
return [Widget::cget $path $option]
}
# ------------------------------------------------------------------------------
# Command ButtonBox::add
# ------------------------------------------------------------------------------
proc ButtonBox::add { path args } {
variable $path
upvar 0 $path data
set but $path.b$data(nbuttons)
set spacing [Widget::getoption $path -spacing]
if { $data(nbuttons) == $data(default) } {
set style active
} elseif { $data(default) == -1 } {
set style disabled
} else {
set style normal
}
array set flags $args
set tags ""
if { [info exists flags(-tags)] } {
set tags $flags(-tags)
unset flags(-tags)
set args [array get flags]
}
eval Button::create $but \
-background [Widget::getoption $path -background]\
-padx [Widget::getoption $path -padx] \
-pady [Widget::getoption $path -pady] \
$args \
-default $style
# ericm@scriptics.com: set up tags, just like the menu items
foreach tag $tags {
lappend data(tags,$tag) $but
if { ![info exists data(tagstate,$tag)] } {
set data(tagstate,$tag) 0
}
}
set data(buttontags,$but) $tags
# ericm@scriptics.com
set idx [expr {2*$data(nbuttons)}]
if { ![string compare [Widget::getoption $path -orient] "horizontal"] } {
grid $but -column $idx -row 0 -sticky nsew
if { [Widget::getoption $path -homogeneous] } {
set req [winfo reqwidth $but]
if { $req > $data(max) } {
for {set i 0} {$i < $data(nbuttons)} {incr i} {
grid columnconfigure $path [expr {2*$i}] -minsize $req
}
set data(max) $req
}
grid columnconfigure $path $idx -minsize $data(max) -weight 1
} else {
grid columnconfigure $path $idx -weight 0
}
if { $data(nbuttons) > 0 } {
grid columnconfigure $path [expr {$idx-1}] -minsize $spacing
}
} else {
grid $but -column 0 -row $idx -sticky nsew
grid rowconfigure $path $idx -weight 0
if { $data(nbuttons) > 0 } {
grid rowconfigure $path [expr {$idx-1}] -minsize $spacing
}
}
incr data(nbuttons)
return $but
}
# ::ButtonBox::setbuttonstate --
#
# Set the state of a given button tag. If this makes any buttons
# enable-able (ie, all of their tags are TRUE), enable them.
#
# Arguments:
# path the button box widget name
# tag the tag to modify
# state the new state of $tag (0 or 1)
#
# Results:
# None.
proc ::ButtonBox::setbuttonstate {path tag state} {
variable $path
upvar 0 $path data
# First see if this is a real tag
if { [info exists data(tagstate,$tag)] } {
set data(tagstate,$tag) $state
foreach but $data(tags,$tag) {
set expression "1"
foreach buttontag $data(buttontags,$but) {
append expression " && $data(tagstate,$buttontag)"
}
if { [expr $expression] } {
set state normal
} else {
set state disabled
}
$but configure -state $state
}
}
return
}
# ::ButtonBox::getbuttonstate --
#
# Retrieve the state of a given button tag.
#
# Arguments:
# path the button box widget name
# tag the tag to modify
#
# Results:
# None.
proc ::ButtonBox::getbuttonstate {path tag} {
variable $path
upvar 0 $path data
# First see if this is a real tag
if { [info exists data(tagstate,$tag)] } {
return $data(tagstate,$tag)
} else {
error "unknown tag $tag"
}
}
# ------------------------------------------------------------------------------
# Command ButtonBox::itemconfigure
# ------------------------------------------------------------------------------
proc ButtonBox::itemconfigure { path index args } {
if { [set idx [lsearch $args -default]] != -1 } {
set args [lreplace $args $idx [expr {$idx+1}]]
}
return [eval Button::configure $path.b[index $path $index] $args]
}
# ------------------------------------------------------------------------------
# Command ButtonBox::itemcget
# ------------------------------------------------------------------------------
proc ButtonBox::itemcget { path index option } {
return [Button::cget $path.b[index $path $index] $option]
}
# ------------------------------------------------------------------------------
# Command ButtonBox::setfocus
# ------------------------------------------------------------------------------
proc ButtonBox::setfocus { path index } {
set but $path.b[index $path $index]
if { [winfo exists $but] } {
focus $but
}
}
# ------------------------------------------------------------------------------
# Command ButtonBox::invoke
# ------------------------------------------------------------------------------
proc ButtonBox::invoke { path index } {
set but $path.b[index $path $index]
if { [winfo exists $but] } {
Button::invoke $but
}
}
# ------------------------------------------------------------------------------
# Command ButtonBox::index
# ------------------------------------------------------------------------------
proc ButtonBox::index { path index } {
if { ![string compare $index "default"] } {
set res [Widget::getoption $path -default]
} elseif { ![string compare $index "end"] || ![string compare $index "last"] } {
variable $path
upvar 0 $path data
set res [expr {$data(nbuttons)-1}]
} else {
set res $index
}
return $res
}
# ------------------------------------------------------------------------------
# Command ButtonBox::_destroy
# ------------------------------------------------------------------------------
proc ButtonBox::_destroy { path } {
variable $path
upvar 0 $path data
Widget::destroy $path
unset data
rename $path {}
}
# ::ButtonBox::gettags --
#
# Return a list of all the tags on all the buttons in a buttonbox.
#
# Arguments:
# path the buttonbox to query.
#
# Results:
# taglist a list of tags on the buttons in the buttonbox
proc ::ButtonBox::gettags {path} {
upvar ::ButtonBox::$path data
set taglist {}
foreach tag [array names data "tags,*"] {
lappend taglist [string range $tag 5 end]
}
return $taglist
}
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