Commit | Line | Data |
---|---|---|
920dae64 AT |
1 | # vscale.tcl -- |
2 | # | |
3 | # This demonstration script shows an example with a vertical scale. | |
4 | # | |
5 | # RCS: @(#) $Id: vscale.tcl,v 1.3 2001/06/14 10:56:58 dkf Exp $ | |
6 | ||
7 | if {![info exists widgetDemo]} { | |
8 | error "This script should be run from the \"widget\" demo." | |
9 | } | |
10 | ||
11 | set w .vscale | |
12 | catch {destroy $w} | |
13 | toplevel $w | |
14 | wm title $w "Vertical Scale Demonstration" | |
15 | wm iconname $w "vscale" | |
16 | positionWindow $w | |
17 | ||
18 | label $w.msg -font $font -wraplength 3.5i -justify left -text "An arrow and a vertical scale are displayed below. If you click or drag mouse button 1 in the scale, you can change the size of the arrow." | |
19 | pack $w.msg -side top -padx .5c | |
20 | ||
21 | frame $w.buttons | |
22 | pack $w.buttons -side bottom -fill x -pady 2m | |
23 | button $w.buttons.dismiss -text Dismiss -command "destroy $w" | |
24 | button $w.buttons.code -text "See Code" -command "showCode $w" | |
25 | pack $w.buttons.dismiss $w.buttons.code -side left -expand 1 | |
26 | ||
27 | frame $w.frame -borderwidth 10 | |
28 | pack $w.frame | |
29 | ||
30 | scale $w.frame.scale -orient vertical -length 284 -from 0 -to 250 \ | |
31 | -command "setHeight $w.frame.canvas" -tickinterval 50 | |
32 | canvas $w.frame.canvas -width 50 -height 50 -bd 0 -highlightthickness 0 | |
33 | $w.frame.canvas create polygon 0 0 1 1 2 2 -fill SeaGreen3 -tags poly | |
34 | $w.frame.canvas create line 0 0 1 1 2 2 0 0 -fill black -tags line | |
35 | frame $w.frame.right -borderwidth 15 | |
36 | pack $w.frame.scale -side left -anchor ne | |
37 | pack $w.frame.canvas -side left -anchor nw -fill y | |
38 | $w.frame.scale set 75 | |
39 | ||
40 | proc setHeight {w height} { | |
41 | incr height 21 | |
42 | set y2 [expr {$height - 30}] | |
43 | if {$y2 < 21} { | |
44 | set y2 21 | |
45 | } | |
46 | $w coords poly 15 20 35 20 35 $y2 45 $y2 25 $height 5 $y2 15 $y2 15 20 | |
47 | $w coords line 15 20 35 20 35 $y2 45 $y2 25 $height 5 $y2 15 $y2 15 20 | |
48 | } |