ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / share / tk8.5 / demos

# cscroll.tcl --
#
# This demonstration script creates a simple canvas that can be
# scrolled in two dimensions.

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

package require Tk

set w .cscroll
catch {destroy $w}
toplevel $w
wm title $w "Scrollable Canvas Demonstration"
wm iconname $w "cscroll"
positionWindow $w
set c $w.c

label $w.msg -font $font -wraplength 4i -justify left -text "This window displays a canvas widget that can be scrolled either using the scrollbars or by dragging with button 2 in the canvas.  If you click button 1 on one of the rectangles, its indices will be printed on stdout."
pack $w.msg -side top

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

frame $w.grid
scrollbar $w.hscroll -orient horiz -command "$c xview"
scrollbar $w.vscroll -command "$c yview"
canvas $c -relief sunken -borderwidth 2 -scrollregion {-11c -11c 50c 20c} \
	-xscrollcommand "$w.hscroll set" \
	-yscrollcommand "$w.vscroll set"
pack $w.grid -expand yes -fill both -padx 1 -pady 1
grid rowconfig    $w.grid 0 -weight 1 -minsize 0
grid columnconfig $w.grid 0 -weight 1 -minsize 0

grid $c -padx 1 -in $w.grid -pady 1 \
    -row 0 -column 0 -rowspan 1 -columnspan 1 -sticky news
grid $w.vscroll -in $w.grid -padx 1 -pady 1 \
    -row 0 -column 1 -rowspan 1 -columnspan 1 -sticky news
grid $w.hscroll -in $w.grid -padx 1 -pady 1 \
    -row 1 -column 0 -rowspan 1 -columnspan 1 -sticky news

set bg [lindex [$c config -bg] 4]
for {set i 0} {$i < 20} {incr i} {
    set x [expr {-10 + 3*$i}]
    for {set j 0; set y -10} {$j < 10} {incr j; incr y 3} {
	$c create rect ${x}c ${y}c [expr {$x+2}]c [expr {$y+2}]c \
		-outline black -fill $bg -tags rect
	$c create text [expr {$x+1}]c [expr {$y+1}]c -text "$i,$j" \
	    -anchor center -tags text
    }
}

$c bind all <Any-Enter> "scrollEnter $c"
$c bind all <Any-Leave> "scrollLeave $c"
$c bind all <1> "scrollButton $c"
bind $c <2> "$c scan mark %x %y"
bind $c <B2-Motion> "$c scan dragto %x %y"
if {[tk windowingsystem] eq "aqua"} {
    bind $c <MouseWheel> {
        %W yview scroll [expr {- (%D)}] units
    }
    bind $c <Option-MouseWheel> {
        %W yview scroll [expr {-10 * (%D)}] units
    }
    bind $c <Shift-MouseWheel> {
        %W xview scroll [expr {- (%D)}] units
    }
    bind $c <Shift-Option-MouseWheel> {
        %W xview scroll [expr {-10 * (%D)}] units
    }
}

proc scrollEnter canvas {
    global oldFill
    set id [$canvas find withtag current]
    if {[lsearch [$canvas gettags current] text] >= 0} {
	set id [expr {$id-1}]
    }
    set oldFill [lindex [$canvas itemconfig $id -fill] 4]
    if {[winfo depth $canvas] > 1} {
	$canvas itemconfigure $id -fill SeaGreen1
    } else {
	$canvas itemconfigure $id -fill black
	$canvas itemconfigure [expr {$id+1}] -fill white
    }
}

proc scrollLeave canvas {
    global oldFill
    set id [$canvas find withtag current]
    if {[lsearch [$canvas gettags current] text] >= 0} {
	set id [expr {$id-1}]
    }
    $canvas itemconfigure $id -fill $oldFill
    $canvas itemconfigure [expr {$id+1}] -fill black
}

proc scrollButton canvas {
    global oldFill
    set id [$canvas find withtag current]
    if {[lsearch [$canvas gettags current] text] < 0} {
	set id [expr {$id+1}]
    }
    puts stdout "You buttoned at [lindex [$canvas itemconf $id -text] 4]"
}

[-] tree.tcl [edit]
[-] toolbar.tcl [edit]
[-] textpeer.tcl [edit]
[-] spin.tcl [edit]
[-] label.tcl [edit]
[-] ctext.tcl [edit]
[-] paned1.tcl [edit]
[-] button.tcl [edit]
[-] radio.tcl [edit]
[-] sayings.tcl [edit]
[+] ..
[-] timer [edit]
[-] ttkbut.tcl [edit]
[-] states.tcl [edit]
[-] README [edit]
[-] ttknote.tcl [edit]
[-] puzzle.tcl [edit]
[-] bind.tcl [edit]
[-] combo.tcl [edit]
[-] check.tcl [edit]
[-] paned2.tcl [edit]
[-] bitmap.tcl [edit]
[-] browse [edit]
[-] license.terms [edit]
[-] ttkscale.tcl [edit]
[-] plot.tcl [edit]
[-] rmt [edit]
[-] tcolor [edit]
[-] tclIndex [edit]
[-] ttkprogress.tcl [edit]
[-] arrow.tcl [edit]
[-] aniwave.tcl [edit]
[-] widget [edit]
[-] items.tcl [edit]
[-] style.tcl [edit]
[-] colors.tcl [edit]
[-] twind.tcl [edit]
[-] text.tcl [edit]
[-] labelframe.tcl [edit]
[-] entry1.tcl [edit]
[-] hello [edit]
[-] filebox.tcl [edit]
[-] knightstour.tcl [edit]
[-] dialog2.tcl [edit]
[-] ruler.tcl [edit]
[-] form.tcl [edit]
[-] dialog1.tcl [edit]
[-] msgbox.tcl [edit]
[-] ttkpane.tcl [edit]
[-] image2.tcl [edit]
[-] floor.tcl [edit]
[-] mclist.tcl [edit]
[-] menu.tcl [edit]
[-] ixset [edit]
[-] entry2.tcl [edit]
[-] rolodex [edit]
[+] images
[-] goldberg.tcl [edit]
[-] unicodeout.tcl [edit]
[-] vscale.tcl [edit]
[-] nl.msg [edit]
[-] search.tcl [edit]
[-] icon.tcl [edit]
[-] menubu.tcl [edit]
[-] ttkmenu.tcl [edit]
[-] en.msg [edit]
[-] anilabel.tcl [edit]
[-] entry3.tcl [edit]
[-] cscroll.tcl [edit]
[-] image1.tcl [edit]
[-] clrpick.tcl [edit]
[-] pendulum.tcl [edit]
[-] hscale.tcl [edit]