Last change
on this file was
37,
checked in by (none), 14 years ago
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Added original make3d
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Property svn:executable set to
*
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File size:
1.2 KB
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1 | #!/bin/sh |
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2 | # the next line restarts using wish \ |
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3 | exec wish8.3 "$0" "$@" |
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4 | |
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5 | # square -- |
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6 | # This script generates a demo application containing only a "square" |
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7 | # widget. It's only usable in the "tktest" application or if Tk has |
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8 | # been compiled with tkSquare.c. This demo arranges the following |
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9 | # bindings for the widget: |
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10 | # |
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11 | # Button-1 press/drag: moves square to mouse |
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12 | # "a": toggle size animation on/off |
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13 | # |
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14 | # RCS: @(#) $Id: square,v 1.2 1998/09/14 18:23:30 stanton Exp $ |
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15 | |
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16 | square .s |
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17 | pack .s -expand yes -fill both |
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18 | wm minsize . 1 1 |
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19 | |
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20 | bind .s <1> {center %x %y} |
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21 | bind .s <B1-Motion> {center %x %y} |
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22 | bind .s a animate |
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23 | focus .s |
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24 | |
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25 | # The procedure below centers the square on a given position. |
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26 | |
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27 | proc center {x y} { |
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28 | set a [.s size] |
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29 | .s position [expr $x-($a/2)] [expr $y-($a/2)] |
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30 | } |
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31 | |
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32 | # The procedures below provide a simple form of animation where |
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33 | # the box changes size in a pulsing pattern: larger, smaller, larger, |
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34 | # and so on. |
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35 | |
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36 | set inc 0 |
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37 | proc animate {} { |
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38 | global inc |
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39 | if {$inc == 0} { |
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40 | set inc 3 |
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41 | timer |
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42 | } else { |
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43 | set inc 0 |
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44 | } |
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45 | } |
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46 | |
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47 | proc timer {} { |
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48 | global inc |
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49 | set s [.s size] |
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50 | if {$inc == 0} return |
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51 | if {$s >= 40} {set inc -3} |
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52 | if {$s <= 10} {set inc 3} |
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53 | .s size [expr {$s+$inc}] |
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54 | after 30 timer |
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55 | } |
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