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|
namespace eval ::ix {
variable _
proc nobfloat {path t num} {
variable _
$path itemconfigure $t:num -text $num
pd [concat $t.rp _cb $num \;]
set _($t:num) $num
}
proc nob_mover {w t f x y} {
variable _
if {$::ix::_($t:clickd) > 0} {
set move [expr (($x - $::ix::_($t:lx)) + (-1 * ($y - $::ix::_($t:ly)))) / ([winfo width $w].0 + [winfo height $w].0) * $f]
nob_move $w $t $move
}
set ::ix::_($t:clickd) 1
set ::ix::_($t:lx) $x
set ::ix::_($t:ly) $y
}
proc nob_move {w t move} {
variable _
set on [$w itemcget $t:num -text]
set no [expr $on + $_($t:range) * $move * 2]
if {$_($t:min) != $_($t:max)} {
if {$no > $_($t:max)} {set no $_($t:max);set move 0}
if {$no < $_($t:min)} {set no $_($t:min);set move 0}
}
nobfloat $w $t $no
foreach e {1 10 100} {
set a [expr [$w itemcget $t:nob$e -start] + int($move * $e * 90)]
$w itemconfigure $t:nob$e -start $a
set _($t:a$e) $a
}
}
proc nob {path t w h range bg c1 c2 c3 cn th nx ny max min} {
variable _
set _($t:lx) 32
set _($t:clickd) -1
set _($t:max) $max
set _($t:min) $min
if {$_($t:min) != $_($t:max)} {
set _($t:range) [expr abs($min - $max)]
} else {
set _($t:range) $range
}
if {[winfo exists $path.nob] != 1} {
canvas $path.nob -width $w -height $h -borderwidth 1 -bg $bg
$path configure -width $w -height $h
place $path.nob -anchor nw -relwidth 1 -relheight 1
$path.nob delete *
set i 0
set colors [list $c1 $c2 $c3]
set ratios {1 10 0.1}
set edge 10
$path.nob create rectangle {1 1 8 4} -fill "#555555"
$path.nob create rectangle "1 $h 8 [expr $h - 5]" -fill "#555555"
foreach e {1 10 100} {
$path.nob create arc \
"[expr $w / $edge / ($i + 1) + ($edge / 2)] [expr $h / $edge / ($i + 1) + ($edge / 2)] [expr $w - $w / $edge / ($i + 1) - ($edge / 2)] [expr $h - $h / $edge / ($i + 1) - ($edge / 2)]" \
-extent [expr int(300 / $e)] -start 90 \
-outline "[lindex $colors $i]" \
-style arc \
-width [expr int($h / $th)] \
-tags $t:nob$e
bind $path.nob <B[expr $i + 1]-Motion> \
"::ix::nob_mover $path.nob $t [lindex $ratios $i] %x %y"
incr i
bind $path.nob <ButtonRelease-$i> "set ::ix::_($t:clickd) -1"
}
bind $path <MouseWheel> {::ix::nob_move %W.nob [winfo name %W] [expr %D / 2400.]}
bind $path <Shift-MouseWheel> {::ix::nob_move %W.nob [winfo name %W] [expr %D / 24000.]}
bind $path <Control-MouseWheel> {::ix::nob_move %W.nob [winfo name %W] [expr %D / 240.]}
bind $path.nob <Shift-B1-Motion> "::ix::nob_mover $path.nob $t 10 %x %y"
bind $path.nob <Control-B1-Motion> "::ix::nob_mover $path.nob $t 0.1 %x %y"
if {$nx == 0} {
set nx [expr $w / 2]
set ny [expr $h - 20]
}
$path.nob create text $nx $ny -text "0.0" -tags $t:num -fill "$cn" -font {{Bitstream Vera Sans} 8}
}
if {[info exists _($t:num)]} {
$path.nob itemconfigure $t:num -text $_($t:num)
foreach e {1 10 100} {
$path.nob itemconfigure $t:nob$e -start $_($t:a$e)
}
} else {
foreach e {1 10 100} {set _($t:a$e) 90}
set _($t:num) 0.0}
}
}
#> knob frame
#. -bd 1 -bg "#cccccc"
#. -highlightbackground red
#. #max 0 #min 0
#. #w 128 #h 128 #th 5 #range 100 #nx 0 #ny 0
#. #bg purple #ca blue #cb yellow #cc green #cn orange
#. @float ::ix::nobfloat .-.nob .| .#1
#. @cmd eval ".-.nob .#args"
bind .- <Enter> {focus .-}
bind .- <Leave> {focus .^.c}
::ix::nob .- .| .#w .#h .#range .#bg .#ca .#cb .#cc .#cn .#th .#nx .#ny .#max .#min
|
