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package require tkpath
namespace eval ::ix {
proc rc {} {return [format "\#%06x" [expr "int(floor(rand() * 16))"]]}
proc mat_note {p t item} {
variable _
set id [lindex [$p.m itemcget $item -tags] 1]
set len [expr [dict get $_($t) $id xx] - [dict get $_($t) $id x]]
set vel [$p.m itemcget $item -fillopacity]
pd [concat $t.rp _cb note [dict get $_($t) $id y] $vel $len \;]}
proc mat_action {p t a x y} {
}
proc mat_scroll {p t a x y} {
}
proc mat_sel {a p t x y} {
variable _
switch $a {
start {
foreach xy {x y} {set _($t:c$xy) [set $xy];set _($t:f$xy) [set $xy]}
$p.m create path [::tkpath::coords rect $_($t:cx) $_($t:cy) 0 0 -rx 16 -ry 16] -tags sel -fill cyan -fillopacity 0.2
}
motion {
if {$x >= $_($t:cx)} {set xa $_($t:fx);set xb $x} else {set xa $x;set xb $_($t:fx)}
if {$y >= $_($t:cy)} {set ya $_($t:fy);set yb $y} else {set ya $y;set yb $_($t:fy)}
set w [expr abs($xb - $xa)]
set h [expr abs($yb - $ya)]
$p.m coords sel [::tkpath::coords rect $xa $ya $w $h -rx 16 -ry 16]
}
}
}
proc mat_draw {p t a x y} {
variable _
switch $a {
motion {
if {$x >= $_($t:cx)} {set xa $_($t:fx);set xb $x} else {set xa $x;set xb $_($t:fx)}
set w [expr abs($xb - $xa)]
set h [mat_tr $p $t y id 1]
$p.m coords drawing [::tkpath::coords rect $xa $y $w $h -rx 3 -ry 3]
set yi [mat_tr $p $t y i $y]
dict set _($t) $_($t:i) x [mat_tr $p $t x i $xa]
dict set _($t) $_($t:i) y $yi
dict set _($t) $_($t:i) xx [mat_tr $p $t x i $xb]
dict set _($t) $_($t:i) yy $yi
pd [concat $t.rp _cb note $yi 0.8 \;]}
first {
foreach xy {x y} {set _($t:c$xy) [set $xy]}
$p.m create path [::tkpath::coords rect $_($t:cx) $_($t:cy) 0 0 -rx 3 -ry 3] -tags drawing -fill green -fillopacity 0.8}
release {
$p.m itemconfigure drawing -tags [list item $_($t:i)] -matrix {{1.0 0.0} {0.0 1.0} {0.0 0.0}}
incr _($t:i)}}}
proc mat_resize_canvas {p t a x y} {
variable _
set mx [expr $x - $_($t:cx)]
set my [expr $y - $_($t:cy)]
foreach xy {x y} {
set mvt [mat_tr $p $t $xy d [expr $$xy - $_($t:c$xy)]]
set _($t:${xy}a) [expr $_($t:${xy}a) - $mvt]
set _($t:${xy}b) [expr $_($t:${xy}b) + $mvt]
}
foreach item [$p.m find withtag item] {
set id [lindex [$p.m itemcget $item -tags] 1]
set px [mat_tr $p $t x t [dict get $_($t) $id x]]
set py [mat_tr $p $t y t [dict get $_($t) $id y]]
set sx [mat_tr $p $t x id [expr [dict get $_($t) $id xx] - [dict get $_($t) $id x]]]
set sy [mat_tr $p $t y id 1]
$p.m coords $item [::tkpath::coords rect $px $py $sx $sy -rx 3 -ry 3]
}
mat_gridlines $p $t
}
proc mat_object_trans {p t a x y} {
variable _
set velo [expr ($x - $_($t:cx)) / 100.0]
foreach item $_($t:cl) {
set vel [expr $velo + [$p.m itemcget $item -fillopacity]]
if {$vel > 1} {set vel 1}
if {$vel < 0} {set vel 0}
$p.m itemconfigure $item -fillopacity $vel
}
}
proc mat_move_canvas {p t a x y} {
variable _
set mx [expr $x - $_($t:cx)]
set my [expr $y - $_($t:cy)]
foreach xy {x y} {
set mvt [mat_tr $p $t $xy d [expr $$xy - $_($t:c$xy)]]
foreach ab {a b} {set _($t:${xy}$ab) [expr $_($t:${xy}$ab) - $mvt]}}
foreach item [$p.m find withtag item] {
set m [$p.m itemcget $item -matrix]
set m [list [lindex $m 0] [lindex $m 1] [list [expr [lindex [lindex $m 2] 0] + $mx] [expr [lindex [lindex $m 2] 1] + $my]]]
$p.m itemconfigure $item -matrix $m
}
mat_gridlines $p $t
}
proc mat_move_object {p t a x y} {
variable _
set mx [expr $x - $_($t:cx)]
set my [expr $y - $_($t:cy)]
foreach item $_($t:cl) {
set m [$p.m itemcget $item -matrix]
set m [list [lindex $m 0] [lindex $m 1] [list [expr [lindex [lindex $m 2] 0] + $mx] [expr [lindex [lindex $m 2] 1] + $my]]]
$p.m itemconfigure $item -matrix $m
}
}
proc mat_hover {p t x y} {
variable _
if {[$p.m find withtag sel] ne ""} {
set clicked [$p.m find overlapping $x $y $_($t:fx) $_($t:fy)]
puts sel
mat_sel motion $p $t $x $y
} else {
set clicked [$p.m find overlapping $x $y $x $y]
}
set n 0
$p.m delete hover
foreach item $clicked {
if {[lindex [$p.m itemcget $item -tags] 0] eq "item"} {
set id [lindex [$p.m itemcget $item -tags] 1]
mat_note $p $t $item
$p.m create text "[expr [winfo width $p.m] - 8.0 ] [expr [winfo height $p.m] - 8.0 - 16 * $n.0]" -fill "#ff0022" -justify right -anchor se -font {{bitstream vera sans} 12} -tags hover -text [dict get $_($t) $id]
incr n
}
}
# set junk $clicked
# foreach cfg [$p.m itemconfigure $clicked] {set junk "$junk\n$cfg"}
# mat_info $p $t $junk
}
proc mat_click {m button action p t x y} {
variable _
# puts "$m $button $action"
set clicked [$p.m find overlapping $x $y $x $y]
set a [$p.m itemcget mode -text]
switch $action {
first {
set _($t:cl) $clicked
foreach xy {x y} {set _($t:f$xy) [set $xy]}
switch $button {
1 {
if {$a eq "draw"} {mat_draw $p $t $action $x $y} elseif {$m eq "double"} {
mat_sel start $p $t $x $y
} else {
if {$clicked ne "" && [lindex [$p.m itemcget [lindex $clicked 0] -tags] 0] eq "item"} {
mat_mode $p $t move_object
} else {
mat_mode $p $t move_canvas
}
}
}
2 {mat_mode $p $t resize_canvas}
3 {mat_mode $p $t object_trans}
4 {mat_mode $p $t scroll}
5 {mat_mode $p $t scroll}
}
}
motion {eval mat_$a $p $t $action $x $y}
release {
switch $button {
1 {
if {$a eq "draw"} {mat_draw $p $t $action $x $y}
}
2 {mat_mode $p $t move_canvas}
3 {mat_mode $p $t move_canvas}
}
}
}
foreach xy {x y} {set _($t:c$xy) [set $xy]}
}
proc mat_tr {p t d inv v} {
variable _
array set dm {x width y height}
switch $inv {
t {return [expr ($v - $_($t:${d}a)) / ($_($t:${d}b) - $_($t:${d}a) + 0.0) * [winfo $dm($d) $p.m]]}
i {return [expr ($_($t:${d}b) - $_($t:${d}a)) * $v /([winfo $dm($d) $p.m] + 0.0) + $_($t:${d}a)]}
d {return [expr ($_($t:${d}b) - $_($t:${d}a)) * $v /([winfo $dm($d) $p.m] + 0.0)]}
# id {return [expr $v / ($_($t:${d}b) - $_($t:${d}a) + 0.0) * [winfo $dm($d) $p.m]]}
id {return [expr abs($v / ($_($t:${d}b) - $_($t:${d}a) + 0.0) * [winfo $dm($d) $p.m])]}}}
proc mat_zoomReset {p t} {
variable _
set _($t:ya) $_($t:yao);set _($t:yb) $_($t:ybo);set _($t:xa) $_($t:xao);set _($t:xb) $_($t:xbo)
mat_gridlines $p $t}
proc mat_key {p t k b} {
puts $k
switch $b {
1 {
switch $k {
37 {mat_mode $p $t draw}
}
}
0 {
switch $k {
37 {mat_mode $p $t {move_canvas}}
}
}
}
}
proc mat_mode {p t m} {
$p.m itemconfigure mode -text $m
}
proc mat_info {p t m} {
$p.m itemconfigure info -text $m
}
proc mat_new {path target w h bg ln xa xb ya yb qx qy} {
variable _
set i 0
foreach xy {x y} {foreach ab {a b} {set ${xy}${ab}o [set ${xy}${ab}]}}
foreach a {i ln xa xb ya yb xao xbo yao ybo qx qy} {set _($target:$a) [set $a]}
if {[winfo exists $path.m] != 1} {
canvas $path.m -bg $bg -width $w -height $h
pack $path.m -side left
bind $path.m <Key> "::ix::mat_key $path $target %k 1"
bind $path.m <KeyRelease> "::ix::mat_key $path $target %k 0"
bind $path.m <Motion> "::ix::mat_hover $path $target %x %y"
foreach m {"Control-" "" "Shift-" "Double-"} {
foreach bn {1 2 3 4 5} {
set b [list [concat $bn first] [concat B${bn}-Motion motion] [concat ButtonRelease-$bn release]]
foreach ba {0 1 2} {
bind $path.m <$m[lindex [lindex $b $ba] 0]> "::ix::mat_click [list [string tolower [string trimright $m -1]]] $bn [lindex [lindex $b $ba] 1] $path $target %x %y"}}}
set bd [expr {[$path cget -bd] * 2}]
$path configure -bg gray -width [expr [winfo width $path.m] + $bd] -height [expr [winfo height $path.m] + $bd]
$path.m create text {20 20} -fill blue -justify left -anchor w -font {{bitstream vera sans} 18} -tags mode -text action
$path.m create text "10 $h" -fill red -justify left -anchor sw -font {{bitstream vera sans} 12 bold} -fill red -tags snap -text "snap (off)"
$path.m create text {20 32} -fill gray49 -justify left -anchor nw -font {{bitstream vera sans} 12} -tags info
mat_gridlines $path $target}}
proc mat_gridlines {path target} {
variable _
# puts gridlines
set w $path.m
$w delete gridlines
set gh [winfo height $w]
set gw [winfo width $w]
foreach item [$w find withtag gridline] {$w delete $item}
foreach xy {x y} {
array set ta {x n y w}
array set tj {x center y left}
array set igx {y width x height}
if {$_($target:${xy}a) > $_($target:${xy}b)} {set oa ">=";set ob "-"} {set oa "<=";set ob "+"}
for {set x [expr int($_($target:${xy}a) / ($_($target:q${xy}) + 0.0) + 1)*($_($target:q${xy}) + 0.0)]} {[expr $x $oa $_($target:${xy}b)]} {set x [expr $x $ob $_($target:q${xy})]} {
set og [mat_tr $path $target $xy t $x]
set invgeo [winfo $igx($xy) $w]
switch $xy {y {set coords [concat M 0 $og L $invgeo $og]}
x {set coords [concat M $og 0 L $og $invgeo]}}
$w lower [$w create path $coords -stroke $_($target:ln) -strokedasharray 2 -tags gridline -strokewidth 1]
$w lower [$w create text [lrange $coords 1 2] -font {{Bitstream Vera Sans} 8} \
-fill green -anchor $ta($xy) -text $x -justify $tj($xy) -tags gridline]}}}}
#> mat frame
#. -bd 3 #w 384 #h 144 #bg white #ln purple
#. #Xa 123 #Xb 2000 #Ya 0 #Yb 127 #qx 125 #qy 1
#. @list ::ix::mat_add .- .| {.#1} .#2 .#3 .#4
#. @add ::ix::mat_add .- .| {.#1} .#2 .#3 .#4
puts "mat .- .|"
::ix::mat_new .- .| .#w .#h .#bg .#ln .#Xa .#Xb .#Ya .#Yb .#qx .#qy
|
