package require tkpath namespace eval ::ix { proc random_int {} {return [expr "int(floor(rand()*16))"]} proc random_clr {} { return [format "\#%1X%1X%1X%1X%1X%1X" [random_int] [random_int] [random_int] [random_int] [random_int] [random_int]] } variable _ proc mat_click {button action p t x y} { variable _ switch $action { motion { 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)]] switch $button { 1 { foreach ab {a b} { set _($t:${xy}$ab) [expr $_($t:${xy}$ab) - $mvt] } } 2 { set _($t:${xy}a) [expr $_($t:${xy}a) - $mvt] set _($t:${xy}b) [expr $_($t:${xy}b) + $mvt] } } } switch $button { 1 { foreach item [$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 $m } } 2 { foreach item [$p.m find withtag item] { set id [lindex [$p.m itemcget $item -tags] 1] set px [mat_tr $p $t x t [lindex $_($t:items:$id) 0]] set py [mat_tr $p $t y t [lindex $_($t:items:$id) 1]] set sx [mat_tr $p $t x id [expr [lindex $_($t:items:$id) 2] - [lindex $_($t:items:$id) 0]]] set sy [mat_tr $p $t y id [expr [lindex $_($t:items:$id) 3] - [lindex $_($t:items:$id) 1]]] $p.m coords $item [::tkpath::coords rect $px $py $sx $sy -rx 3 -ry 3] } } } mat_gridlines $p $t } } foreach xy {x y} {set _($t:c$xy) [set $xy]} } proc mat_draw {action p t x y} { variable _ switch $action { motion { $p.m coords drawing [::tkpath::coords rect $_($t:cx) $_($t:cy) [expr $x - $_($t:cx)] [expr $y - $_($t:cy)] -rx 3 -ry 3] } 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 $p.m bind drawing <1> } release { $p.m itemconfigure drawing -tags [list item $_($t:i)] -matrix {{1.0 0.0} {0.0 1.0} {0.0 0.0}} set _($t:items:$_($t:i)) [list [mat_tr $p $t x i $_($t:cx)] [mat_tr $p $t y i $_($t:cy)] [mat_tr $p $t x i $x] [mat_tr $p $t y i $y]] incr _($t:i) } } } 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) $p.m]]} } } proc mat_zoomReset {p t} { variable _ set _($t:ya) $_($t:yao) set _($t:yb) $_($t:ybo) set _($t:xa) $_($t:xao) set _($t:xb) $_($t:xbo) mat_gridlines $p $t } proc mat_new {path target w h bg ln Xa Xb Ya Yb qXv qYv} { variable _ set _($target:i) 0 set _($target:ln) $ln set _($target:qxv) $qXv set _($target:qyv) $qYv set _($target:ya) $Ya set _($target:xa) $Xa set _($target:yb) $Yb set _($target:xb) $Xb set _($target:yao) $Ya set _($target:xao) $Xa set _($target:ybo) $Yb set _($target:xbo) $Xb if {[winfo exists $path.m] != 1} { canvas $path.m -bg $bg -width $w -height $h pack $path.m -side left bind $path.m <1> "::ix::mat_click 1 first $path $target %x %y" bind $path.m "::ix::mat_click 1 motion $path $target %x %y" bind $path.m "::ix::mat_click 1 release $path $target %x %y" bind $path.m <2> "::ix::mat_click 2 first $path $target %x %y" bind $path.m "::ix::mat_zoomReset $path $target" bind $path.m "::ix::mat_click 2 motion $path $target %x %y" bind $path.m "::ix::mat_click 2 release $path $target %x %y" bind $path.m "::ix::mat_draw first $path $target %x %y" bind $path.m "::ix::mat_draw motion $path $target %x %y" bind $path.m "::ix::mat_draw release $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] update 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 $w] foreach item [$path.m find withtag gridline] {$path.m delete $item} foreach xy {x y} { array set ta {x n y w} array set tj {x center y left} array set igx {y width x height} for {set x [expr int($_($target:${xy}a) / ($_($target:q${xy}v) + 0.0) + 1)*($_($target:q${xy}v) + 0.0)]} {$x <= $_($target:${xy}b)} {set x [expr $x + $_($target:q${xy}v)]} { set og [mat_tr $path $target $xy t $x] set invgeo [winfo $igx($xy) $path.m] 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 #qXv 125 #qYv 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 .#qXv .#qYv