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|
catch {console show}
::toxy::package_require BLT "e:/Tcl/bin/BLT24.dll"
namespace eval ::toxy::bpf {}
proc ::toxy::bpf::ondrag {path ndx} {
set ${path}::idrag $ndx
if {$ndx > 0} {
incr ndx -1
set ${path}::mindrag [${path}::xvec range $ndx $ndx]
incr ndx
} else {
set ${path}::mindrag 0
}
incr ndx
if {$ndx < [${path}::xvec length]} {
set ${path}::maxdrag [${path}::xvec range $ndx $ndx]
} else {
set ${path}::maxdrag [set ${path}::xmax]
}
}
proc ::toxy::bpf::atData {path args} {
set cmd [lindex $args 0]
switch -- $cmd {
set {
set idrag [lindex $args 1]
set gx [lindex $args 2]
set gy [lindex $args 3]
if {[string is double -strict $idrag] &&
[string is double -strict $gx] &&
[string is double -strict $gy]} {
${path}::xvec variable xvec
${path}::yvec variable yvec
array set xvec [list $idrag $gx]
array set yvec [list $idrag $gy]
${path}::xvec sort ${path}::yvec ${path}::zvec
}
}
add {
set gx [lindex $args 1]
set gy [lindex $args 2]
if {[string is double -strict $gx] &&
[string is double -strict $gy]} {
${path}::xvec append $gx
${path}::yvec append $gy
${path}::zvec append 0
${path}::xvec sort ${path}::yvec ${path}::zvec
set ndx [${path}::xvec search $gx]
if {[llength $ndx] > 1} {
set ndx [lindex $ndx 0]
} elseif {[llength $ndx] < 1} {
set ${path}::idrag -1
return
}
::toxy::bpf::ondrag $path $ndx
}
}
}
}
proc ::toxy::bpf::motion {path x y} {
if {[set ${path}::locked]} { return }
if {[$path element closest $x $y cl -halo 10 el]} {
$path config -cursor arrow
} else {
$path config -cursor crosshair
}
}
proc ::toxy::bpf::b1motion {path x y} {
if {[set ${path}::locked]} { return }
variable ${path}::idrag
if {$idrag >= 0 && [$path inside $x $y]} {
variable ${path}::mindrag
variable ${path}::maxdrag
set gxy [$path invtransform $x $y]
set gx [lindex $gxy 0]
if {$gx < $mindrag} {
set gx $mindrag
} elseif {$gx > $maxdrag} {
set gx $maxdrag
}
${path}::xvec variable xvec
${path}::yvec variable yvec
array set xvec [list $idrag $gx]
array set yvec [list $idrag [lindex $gxy 1]]
}
}
proc ::toxy::bpf::b1release {path x y} {
if {[set ${path}::locked]} { return }
variable ${path}::idrag
if {$idrag >= 0 && [$path inside $x $y]} {
variable ${path}::mindrag
variable ${path}::maxdrag
set gxy [$path invtransform $x $y]
set gx [lindex $gxy 0]
set gy [lindex $gxy 1]
if {$gx < $mindrag} {
set gx $mindrag
} elseif {$gx > $maxdrag} {
set gx $maxdrag
}
variable ${path}::target
pd $target.rp _data set $idrag $gx $gy \;
}
set ${path}::idrag -1
set ${path}::mindrag 0
set ${path}::maxdrag ${path}::xmax
}
proc ::toxy::bpf::b1click {path x y} {
if {[set ${path}::locked]} { return }
if {[$path element closest $x $y cl -halo 10 el]} {
set gxy [$path invtransform $x $y]
set ${path}::xdrag [lindex $gxy 0]
set ${path}::ydrag [lindex $gxy 1]
::toxy::bpf::ondrag $path $cl(index)
} elseif {[$path inside $x $y]} {
set gxy [$path invtransform $x $y]
set ${path}::xdrag [lindex $gxy 0]
set ${path}::ydrag [lindex $gxy 1]
variable ${path}::xdrag
variable ${path}::ydrag
variable ${path}::target
pd $target.rp _data add $xdrag $ydrag \;
} else {
set ${path}::idrag -1
}
}
proc ::toxy::bpf::shiftb1click {path x y} {
if {[set ${path}::locked]} { return }
if {[$path element closest $x $y cl -halo 10 el]} {
set ndx $cl(index)
${path}::xvec delete $ndx
${path}::yvec delete $ndx
${path}::zvec delete $ndx
}
set ${path}::idrag -1
}
proc ::toxy::bpf::lock {path v} {
set ${path}::locked $v
if {$v} {
$path config -cursor hand2
} else {
$path config -cursor crosshair
}
}
proc ::toxy::bpf::atVis {path} {
bind $path <Motion> +[concat ::toxy::bpf::motion %W %x %y]
bind $path <1> +[concat ::toxy::bpf::b1click %W %x %y]
bind $path <B1-Motion> +[concat ::toxy::bpf::b1motion %W %x %y]
bind $path <ButtonRelease> +[concat ::toxy::bpf::b1release %W %x %y]
bind $path <<disable>> +[concat ::toxy::bpf::lock %W 1]
bind $path <<enable>> +[concat ::toxy::bpf::lock %W 0]
$path element bind el <Shift-1> "::toxy::bpf::shiftb1click %W %x %y"
}
proc ::toxy::bpf::atNew {path} {
variable ${path}::xmax
variable ${path}::ymin
variable ${path}::ymax
$path axis configure x -min 0.0 -max $xmax
$path axis configure y -min $ymin -max $ymax
$path element create el -x ${path}::xvec -y ${path}::yvec \
-symbol "circle" -pixels 2 -linewidth 2 -color darkgreen -hide 0
$path legend config -hide yes
}
proc ::toxy::bpf::atFree {path} {
blt::vector destroy ${path}::xvec
blt::vector destroy ${path}::yvec
blt::vector destroy ${path}::zvec
}
#> bpf blt::graph
#. -width 300 -height 200 -bg lightblue -plotbackground lightgrey -halo 10
#. #domain 1000.
#@ vis
# LATER reconsider calling standard procs implicitly, followed by scripts
::toxy::bpf::atVis .-
#@ new
# LATER reconsider replacing this with global .- (using ::${path} in procs)
namespace eval ::toxy::bpf::.- {
# this might be implicit
set target .|
# array interface seems broken inside namespaces
# (cf sf.net/projects/blt bug 651993)
blt::vector create xvec -variable ""
blt::vector create yvec -variable ""
blt::vector create zvec -variable ""
set locked 0
set xmax .#domain
set ymin 0.0
set ymax 1.0
set idrag -1
set mindrag 0
set maxdrag $xmax
set xdrag 0
set ydrag 0
}
::toxy::bpf::atNew .-
#@ free
::toxy::bpf::atFree .-
#@ data
::toxy::bpf::atData .- .#args
|
