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# This file creates a visual test for arcs. It is part of the Tk
# visual test suite, which is invoked via the "visual" script.
#
# RCS: @(#) $Id: arc.tcl,v 1.3 1999/04/16 01:51:33 stanton Exp $
catch {destroy .t}
toplevel .t
wm title .t "Visual Tests for Canvas Arcs"
wm iconname .t "Arcs"
wm geom .t +0+0
wm minsize .t 1 1
canvas .t.c -width 650 -height 600 -relief raised
pack .t.c -expand yes -fill both
button .t.quit -text Quit -command {destroy .t}
pack .t.quit -side bottom -pady 3 -ipadx 4 -ipady 2
puts "depth is [winfo depth .t]"
if {[winfo depth .t] > 1} {
set fill1 aquamarine3
set fill2 aquamarine3
set fill3 IndianRed1
set outline2 IndianRed3
} else {
set fill1 black
set fill2 white
set fill3 Black
set outline2 white
}
set outline black
.t.c create arc 20 20 220 120 -start 30 -extent 270 -outline $fill1 -width 14 \
-style arc
.t.c create arc 260 20 460 120 -start 30 -extent 270 -fill $fill2 -width 14 \
-style chord -outline $outline
.t.c create arc 500 20 620 160 -start 30 -extent 270 -fill {} -width 14 \
-style chord -outline $outline -outlinestipple gray50
.t.c create arc 20 260 140 460 -start 45 -extent 90 -fill $fill2 -width 14 \
-style pieslice -outline $outline
.t.c create arc 180 260 300 460 -start 45 -extent 90 -fill {} -width 14 \
-style pieslice -outline $outline
.t.c create arc 340 260 460 460 -start 30 -extent 150 -fill $fill2 -width 14 \
-style chord -outline $outline -stipple gray50 -outlinestipple gray25
.t.c create arc 500 260 620 460 -start 30 -extent 150 -fill {} -width 14 \
-style chord -outline $outline
.t.c create arc 20 450 140 570 -start 135 -extent 270 -fill $fill1 -width 14 \
-style pieslice -outline {}
.t.c create arc 180 450 300 570 -start 30 -extent -90 -fill $fill1 -width 14 \
-style pieslice -outline {}
.t.c create arc 340 450 460 570 -start 320 -extent 270 -fill $fill1 -width 14 \
-style chord -outline {}
.t.c create arc 500 450 620 570 -start 350 -extent -110 -fill $fill1 -width 14 \
-style chord -outline {}
.t.c addtag arc withtag all
.t.c addtag circle withtag [.t.c create oval 320 200 340 220 -fill MistyRose3]
.t.c bind arc <Any-Enter> {
set prevFill [lindex [.t.c itemconf current -fill] 4]
set prevOutline [lindex [.t.c itemconf current -outline] 4]
if {($prevFill != "") || ($prevOutline == "")} {
.t.c itemconf current -fill $fill3
}
if {$prevOutline != ""} {
.t.c itemconf current -outline $outline2
}
}
.t.c bind arc <Any-Leave> {.t.c itemconf current -fill $prevFill -outline $prevOutline}
bind .t.c <1> {markarea %x %y}
bind .t.c <B1-Motion> {strokearea %x %y}
proc markarea {x y} {
global areaX1 areaY1
set areaX1 $x
set areaY1 $y
}
proc strokearea {x y} {
global areaX1 areaY1 areaX2 areaY2
if {($areaX1 != $x) && ($areaY1 != $y)} {
.t.c delete area
.t.c addtag area withtag [.t.c create rect $areaX1 $areaY1 $x $y \
-outline black]
set areaX2 $x
set areaY2 $y
}
}
bind .t.c <Control-f> {
puts stdout "Enclosed: [.t.c find enclosed $areaX1 $areaY1 $areaX2 $areaY2]"
puts stdout "Overlapping: [.t.c find overl $areaX1 $areaY1 $areaX2 $areaY2]"
}
bind .t.c <3> {puts stdout "%x %y"}
# The code below allows the circle to be move by shift-dragging.
bind .t.c <Shift-1> {
set curx %x
set cury %y
}
bind .t.c <Shift-B1-Motion> {
.t.c move circle [expr %x-$curx] [expr %y-$cury]
set curx %x
set cury %y
}
# The binding below flashes the closest item to the mouse.
bind .t.c <Control-c> {
set closest [.t.c find closest %x %y]
set oldfill [lindex [.t.c itemconf $closest -fill] 4]
.t.c itemconf $closest -fill IndianRed1
after 200 [list .t.c itemconfig $closest -fill $oldfill]
}
proc c {option value} {.t.c itemconf 2 $option $value}
bind .t.c a {
set go 1
set i 1
while {$go} {
if {$i >= 50} {
set delta -5
}
if {$i <= 5} {
set delta 5
}
incr i $delta
c -start $i
c -extent [expr 360-2*$i]
after 20
update
}
}
bind .t.c b {set go 0}
bind .t.c <Control-x> {.t.c delete current}
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