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📄 anilabel.tcl(6.51 KB)
📄 aniwave.tcl(3.41 KB)
📄 arrow.tcl(7.8 KB)
📄 bind.tcl(2.87 KB)
📄 bitmap.tcl(1.38 KB)
📄 browse(1.72 KB)
📄 button.tcl(1.47 KB)
📄 check.tcl(2.22 KB)
📄 clrpick.tcl(1.4 KB)
📄 colors.tcl(4.88 KB)
📄 combo.tcl(1.94 KB)
📄 cscroll.tcl(3.31 KB)
📄 ctext.tcl(4.76 KB)
📄 dialog1.tcl(660 B)
📄 dialog2.tcl(613 B)
📄 en.msg(3.8 KB)
📄 entry1.tcl(1.35 KB)
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📄 goldberg.tcl(55.23 KB)
📄 hello(512 B)
📄 hscale.tcl(1.46 KB)
📄 icon.tcl(2.01 KB)
📄 image1.tcl(1002 B)
📄 image2.tcl(3.28 KB)
📁 images
📄 items.tcl(9.5 KB)
📄 ixset(7.91 KB)
📄 knightstour.tcl(8.38 KB)
📄 label.tcl(1.29 KB)
📄 labelframe.tcl(1.8 KB)
📄 license.terms(2.16 KB)
📄 mclist.tcl(3.89 KB)
📄 menu.tcl(6.57 KB)
📄 menubu.tcl(4.37 KB)
📄 msgbox.tcl(1.98 KB)
📄 nl.msg(6.61 KB)
📄 paned1.tcl(1.08 KB)
📄 paned2.tcl(2.18 KB)
📄 pendulum.tcl(7.46 KB)
📄 plot.tcl(2.69 KB)
📄 puzzle.tcl(2.54 KB)
📄 radio.tcl(2.69 KB)
📄 rmt(5.22 KB)
📄 rolodex(8.11 KB)
📄 ruler.tcl(5.09 KB)
📄 sayings.tcl(2.21 KB)
📄 search.tcl(4.29 KB)
📄 spin.tcl(1.78 KB)
📄 states.tcl(1.63 KB)
📄 style.tcl(6.78 KB)
📄 tclIndex(4.25 KB)
📄 tcolor(10.99 KB)
📄 text.tcl(3.34 KB)
📄 textpeer.tcl(2.13 KB)
📄 timer(1.09 KB)
📄 toolbar.tcl(3.19 KB)
📄 tree.tcl(3.29 KB)
📄 ttkbut.tcl(3.34 KB)
📄 ttkmenu.tcl(2.35 KB)
📄 ttknote.tcl(2.41 KB)
📄 ttkpane.tcl(3.95 KB)
📄 ttkprogress.tcl(1.52 KB)
📄 ttkscale.tcl(1.39 KB)
📄 twind.tcl(10.57 KB)
📄 unicodeout.tcl(3.45 KB)
📄 vscale.tcl(1.44 KB)
📄 widget(22.83 KB)

Editing: cscroll.tcl

# 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]"
}

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Editing: cscroll.tcl

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