FM / demos

/usr/share/tk8.6/demos

Name	Size	Mode	Actions
images/	-	0755	rm
anilabel.tcl	6670	0644	edit dl rm
aniwave.tcl	3494	0644	edit dl rm
arrow.tcl	7984	0644	edit dl rm
bind.tcl	2948	0644	edit dl rm
bitmap.tcl	1411	0644	edit dl rm
browse	1758	0755	edit dl rm
button.tcl	1504	0644	edit dl rm
check.tcl	2278	0644	edit dl rm
clrpick.tcl	1431	0644	edit dl rm
colors.tcl	4995	0644	edit dl rm
combo.tcl	1963	0644	edit dl rm
cscroll.tcl	3389	0644	edit dl rm
ctext.tcl	6019	0644	edit dl rm
dialog1.tcl	660	0644	edit dl rm
dialog2.tcl	613	0644	edit dl rm
en.msg	3867	0644	edit dl rm
entry1.tcl	1385	0644	edit dl rm
entry2.tcl	2081	0644	edit dl rm
entry3.tcl	6104	0644	edit dl rm
filebox.tcl	2351	0644	edit dl rm
floor.tcl	79108	0644	edit dl rm
fontchoose.tcl	1752	0644	edit dl rm
form.tcl	1046	0644	edit dl rm
goldberg.tcl	56556	0644	edit dl rm
hello	512	0755	edit dl rm
hscale.tcl	1497	0644	edit dl rm
icon.tcl	2063	0644	edit dl rm
image1.tcl	1002	0644	edit dl rm
image2.tcl	3352	0644	edit dl rm
items.tcl	10133	0644	edit dl rm
ixset	8068	0755	edit dl rm
knightstour.tcl	9140	0644	edit dl rm
label.tcl	1379	0644	edit dl rm
labelframe.tcl	1847	0644	edit dl rm
license.terms	2267	0644	edit dl rm
mclist.tcl	4357	0644	edit dl rm
menu.tcl	6778	0644	edit dl rm
menubu.tcl	4476	0644	edit dl rm
msgbox.tcl	1998	0644	edit dl rm
nl.msg	6750	0644	edit dl rm
paned1.tcl	1110	0644	edit dl rm
paned2.tcl	2244	0644	edit dl rm
pendulum.tcl	7596	0644	edit dl rm
plot.tcl	2758	0644	edit dl rm
puzzle.tcl	2596	0644	edit dl rm
radio.tcl	2752	0644	edit dl rm
README	2082	0644	edit dl rm
rmt	5319	0755	edit dl rm
rolodex	8300	0755	edit dl rm
ruler.tcl	5211	0644	edit dl rm
sayings.tcl	2273	0644	edit dl rm
search.tcl	4403	0644	edit dl rm
spin.tcl	1820	0644	edit dl rm
states.tcl	2048	0644	edit dl rm
style.tcl	6943	0644	edit dl rm
tclIndex	4354	0644	edit dl rm
tcolor	11250	0755	edit dl rm
text.tcl	4267	0644	edit dl rm
textpeer.tcl	2188	0644	edit dl rm
timer	1095	0755	edit dl rm
toolbar.tcl	3264	0644	edit dl rm
tree.tcl	3162	0644	edit dl rm
ttkbut.tcl	3405	0644	edit dl rm
ttkmenu.tcl	2391	0644	edit dl rm
ttknote.tcl	2317	0644	edit dl rm
ttkpane.tcl	4172	0644	edit dl rm
ttkprogress.tcl	1536	0644	edit dl rm
ttkscale.tcl	1420	0644	edit dl rm
twind.tcl	11045	0644	edit dl rm
unicodeout.tcl	4399	0644	edit dl rm
vscale.tcl	1477	0644	edit dl rm
widget	23267	0755	edit dl rm

Edit: /usr/share/tk8.6/demos/items.tcl (10133B)

# items.tcl --
#
# This demonstration script creates a canvas that displays the
# canvas item types.

if {![info exists widgetDemo]} {
    error "This script should be run from the \"widget\" demo."
}

package require Tk

set w .items
catch {destroy $w}
toplevel $w
wm title $w "Canvas Item Demonstration"
wm iconname $w "Items"
positionWindow $w
set c $w.frame.c

label $w.msg -font $font -wraplength 5i -justify left -text "This window contains a canvas widget with examples of the various kinds of items supported by canvases.  The following operations are supported:\n  Button-1 drag:\tmoves item under pointer.\n  Button-2 drag:\trepositions view.\n  Button-3 drag:\tstrokes out area.\n  Ctrl+f:\t\tprints items under area."
pack $w.msg -side top

## See Code / Dismiss buttons
set btns [addSeeDismiss $w.buttons $w]
pack $btns -side bottom -fill x

frame $w.frame
pack $w.frame -side top -fill both -expand yes

canvas $c -scrollregion {0c 0c 30c 24c} -width 15c -height 10c \
	-relief sunken -borderwidth 2 \
	-xscrollcommand "$w.frame.hscroll set" \
	-yscrollcommand "$w.frame.vscroll set"
ttk::scrollbar $w.frame.vscroll -command "$c yview"
ttk::scrollbar $w.frame.hscroll -orient horiz -command "$c xview"

grid $c -in $w.frame \
    -row 0 -column 0 -rowspan 1 -columnspan 1 -sticky news
grid $w.frame.vscroll \
    -row 0 -column 1 -rowspan 1 -columnspan 1 -sticky news
grid $w.frame.hscroll \
    -row 1 -column 0 -rowspan 1 -columnspan 1 -sticky news
grid rowconfig    $w.frame 0 -weight 1 -minsize 0
grid columnconfig $w.frame 0 -weight 1 -minsize 0

# Display a 3x3 rectangular grid.

$c create rect 0c 0c 30c 24c -width 2
$c create line 0c 8c 30c 8c -width 2
$c create line 0c 16c 30c 16c -width 2
$c create line 10c 0c 10c 24c -width 2
$c create line 20c 0c 20c 24c -width 2

set font1 {Helvetica 12}
set font2 {Helvetica 24 bold}
if {[winfo depth $c] > 1} {
    set blue DeepSkyBlue3
    set red red
    set bisque bisque3
    set green SeaGreen3
} else {
    set blue black
    set red black
    set bisque black
    set green black
}

# Set up demos within each of the areas of the grid.

$c create text 5c .2c -text Lines -anchor n
$c create line 1c 1c 3c 1c 1c 4c 3c 4c -width 2m -fill $blue \
	-cap butt -join miter -tags item
$c create line 4.67c 1c 4.67c 4c -arrow last -tags item
$c create line 6.33c 1c 6.33c 4c -arrow both -tags item
$c create line 5c 6c 9c 6c 9c 1c 8c 1c 8c 4.8c 8.8c 4.8c 8.8c 1.2c \
	8.2c 1.2c 8.2c 4.6c 8.6c 4.6c 8.6c 1.4c 8.4c 1.4c 8.4c 4.4c \
	-width 3 -fill $red -tags item
# Main widget program sets variable tk_demoDirectory
$c create line 1c 5c 7c 5c 7c 7c 9c 7c -width .5c \
	-stipple @[file join $tk_demoDirectory images gray25.xbm] \
	-arrow both -arrowshape {15 15 7} -tags item
$c create line 1c 7c 1.75c 5.8c 2.5c 7c 3.25c 5.8c 4c 7c -width .5c \
	-cap round -join round -tags item

$c create text 15c .2c -text "Curves (smoothed lines)" -anchor n
$c create line 11c 4c 11.5c 1c 13.5c 1c 14c 4c -smooth on \
	-fill $blue -tags item
$c create line 15.5c 1c 19.5c 1.5c 15.5c 4.5c 19.5c 4c -smooth on \
	-arrow both -width 3 -tags item
$c create line 12c 6c 13.5c 4.5c 16.5c 7.5c 18c 6c \
	16.5c 4.5c 13.5c 7.5c 12c 6c -smooth on -width 3m -cap round \
	-stipple @[file join $tk_demoDirectory images gray25.xbm] \
	-fill $red -tags item

$c create text 25c .2c -text Polygons -anchor n
$c create polygon 21c 1.0c 22.5c 1.75c 24c 1.0c 23.25c 2.5c \
	24c 4.0c 22.5c 3.25c 21c 4.0c 21.75c 2.5c -fill $green \
	-outline black -width 4 -tags item
$c create polygon 25c 4c 25c 4c 25c 1c 26c 1c 27c 4c 28c 1c \
	29c 1c 29c 4c 29c 4c -fill $red -smooth on -tags item
$c create polygon 22c 4.5c 25c 4.5c 25c 6.75c 28c 6.75c \
	28c 5.25c 24c 5.25c 24c 6.0c 26c 6c 26c 7.5c 22c 7.5c \
	-stipple @[file join $tk_demoDirectory images gray25.xbm] \
	-outline black -tags item

$c create text 5c 8.2c -text Rectangles -anchor n
$c create rectangle 1c 9.5c 4c 12.5c -outline $red -width 3m -tags item
$c create rectangle 0.5c 13.5c 4.5c 15.5c -fill $green -tags item
$c create rectangle 6c 10c 9c 15c -outline {} \
	-stipple @[file join $tk_demoDirectory images gray25.xbm] \
	-fill $blue -tags item

$c create text 15c 8.2c -text Ovals -anchor n
$c create oval 11c 9.5c 14c 12.5c -outline $red -width 3m -tags item
$c create oval 10.5c 13.5c 14.5c 15.5c -fill $green -tags item
$c create oval 16c 10c 19c 15c -outline {} \
	-stipple @[file join $tk_demoDirectory images gray25.xbm] \
	-fill $blue -tags item

$c create text 25c 8.2c -text Text -anchor n
$c create rectangle 22.4c 8.9c 22.6c 9.1c
$c create text 22.5c 9c -anchor n -font $font1 -width 4c \
	-text "A short string of text, word-wrapped, justified left, and anchored north (at the top).  The rectangles show the anchor points for each piece of text." -tags item
$c create rectangle 25.4c 10.9c 25.6c 11.1c
$c create text 25.5c 11c -anchor w -font $font1 -fill $blue \
	-text "Several lines,\n each centered\nindividually,\nand all anchored\nat the left edge." \
	-justify center -tags item
$c create rectangle 24.9c 13.9c 25.1c 14.1c
$c create text 25c 14c -font $font2 -anchor c -fill $red -angle 15 \
	-text "Angled characters" -tags item

$c create text 5c 16.2c -text Arcs -anchor n
$c create arc 0.5c 17c 7c 20c -fill $green -outline black \
	-start 45 -extent 270 -style pieslice -tags item
$c create arc 6.5c 17c 9.5c 20c -width 4m -style arc \
	-outline $blue -start -135 -extent 270 -tags item \
	-outlinestipple @[file join $tk_demoDirectory images gray25.xbm]
$c create arc 0.5c 20c 9.5c 24c -width 4m -style pieslice \
	-fill {} -outline $red -start 225 -extent -90 -tags item
$c create arc 5.5c 20.5c 9.5c 23.5c -width 4m -style chord \
	-fill $blue -outline {} -start 45 -extent 270  -tags item

image create photo items.ousterhout \
    -file [file join $tk_demoDirectory images ouster.png]
image create photo items.ousterhout.active -format "png -alpha 0.5" \
    -file [file join $tk_demoDirectory images ouster.png]
$c create text 15c 16.2c -text "Bitmaps and Images" -anchor n
$c create image 13c 20c -tags item -image items.ousterhout \
    -activeimage items.ousterhout.active
$c create bitmap 17c 18.5c -tags item \
	-bitmap @[file join $tk_demoDirectory images noletter.xbm]
$c create bitmap 17c 21.5c -tags item \
	-bitmap @[file join $tk_demoDirectory images letters.xbm]

$c create text 25c 16.2c -text Windows -anchor n
button $c.button -text "Press Me" -command "butPress $c $red"
$c create window 21c 18c -window $c.button -anchor nw -tags item
entry $c.entry -width 20 -relief sunken
$c.entry insert end "Edit this text"
$c create window 21c 21c -window $c.entry -anchor nw -tags item
scale $c.scale -from 0 -to 100 -length 6c -sliderlength .4c \
	-width .5c -tickinterval 0
$c create window 28.5c 17.5c -window $c.scale -anchor n -tags item
$c create text 21c 17.9c -text Button: -anchor sw
$c create text 21c 20.9c -text Entry: -anchor sw
$c create text 28.5c 17.4c -text Scale: -anchor s

# Set up event bindings for canvas:

$c bind item <Any-Enter> "itemEnter $c"
$c bind item <Any-Leave> "itemLeave $c"
bind $c <2> "$c scan mark %x %y"
bind $c <B2-Motion> "$c scan dragto %x %y"
bind $c <3> "itemMark $c %x %y"
bind $c <B3-Motion> "itemStroke $c %x %y"
bind $c <<NextChar>> "itemsUnderArea $c"
bind $c <1> "itemStartDrag $c %x %y"
bind $c <B1-Motion> "itemDrag $c %x %y"

# Utility procedures for highlighting the item under the pointer:

proc itemEnter {c} {
    global restoreCmd

if {[winfo depth $c] == 1} {
	set restoreCmd {}
	return
    }
    set type [$c type current]
    if {$type == "window" || $type == "image"} {
	set restoreCmd {}
	return
    } elseif {$type == "bitmap"} {
	set bg [lindex [$c itemconf current -background] 4]
	set restoreCmd [list $c itemconfig current -background $bg]
	$c itemconfig current -background SteelBlue2
	return
    } elseif {$type == "image"} {
	set restoreCmd [list $c itemconfig current -state normal]
	$c itemconfig current -state active
	return
    }
    set fill [lindex [$c itemconfig current -fill] 4]
    if {(($type == "rectangle") || ($type == "oval") || ($type == "arc"))
	    && ($fill == "")} {
	set outline [lindex [$c itemconfig current -outline] 4]
	set restoreCmd "$c itemconfig current -outline $outline"
	$c itemconfig current -outline SteelBlue2
    } else {
	set restoreCmd "$c itemconfig current -fill $fill"
	$c itemconfig current -fill SteelBlue2
    }
}

proc itemLeave {c} {
    global restoreCmd

eval $restoreCmd
}

# Utility procedures for stroking out a rectangle and printing what's
# underneath the rectangle's area.

proc itemMark {c x y} {
    global areaX1 areaY1
    set areaX1 [$c canvasx $x]
    set areaY1 [$c canvasy $y]
    $c delete area
}

proc itemStroke {c x y} {
    global areaX1 areaY1 areaX2 areaY2
    set x [$c canvasx $x]
    set y [$c canvasy $y]
    if {($areaX1 != $x) && ($areaY1 != $y)} {
	$c delete area
	$c addtag area withtag [$c create rect $areaX1 $areaY1 $x $y \
		-outline black]
	set areaX2 $x
	set areaY2 $y
    }
}

proc itemsUnderArea {c} {
    global areaX1 areaY1 areaX2 areaY2
    set area [$c find withtag area]
    set items ""
    foreach i [$c find enclosed $areaX1 $areaY1 $areaX2 $areaY2] {
	if {[lsearch [$c gettags $i] item] != -1} {
	    lappend items $i
	}
    }
    puts stdout "Items enclosed by area: $items"
    set items ""
    foreach i [$c find overlapping $areaX1 $areaY1 $areaX2 $areaY2] {
	if {[lsearch [$c gettags $i] item] != -1} {
	    lappend items $i
	}
    }
    puts stdout "Items overlapping area: $items"
}

set areaX1 0
set areaY1 0
set areaX2 0
set areaY2 0

# Utility procedures to support dragging of items.

proc itemStartDrag {c x y} {
    global lastX lastY
    set lastX [$c canvasx $x]
    set lastY [$c canvasy $y]
}

proc itemDrag {c x y} {
    global lastX lastY
    set x [$c canvasx $x]
    set y [$c canvasy $y]
    $c move current [expr {$x-$lastX}] [expr {$y-$lastY}]
    set lastX $x
    set lastY $y
}

# Procedure that's invoked when the button embedded in the canvas
# is invoked.

proc butPress {w color} {
    set i [$w create text 25c 18.1c -text "Oooohhh!!" -fill $color -anchor n]
    after 500 "$w delete $i"
}

cmd: