/usr/share/doc/libx11-protocol-perl/examples/anim.pl is in libx11-protocol-perl 0.56-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | #!/usr/bin/perl
use X11::Protocol;
use IO::Select;
$pi = 3.1415926535898;
$r = 1;
$theta = 0;
$size = 250;
$x = X11::Protocol->new;
$win = $x->new_rsrc;
$x->CreateWindow($win, $x->root, 'InputOutput', $x->root_depth,
'CopyFromParent', (0, 0), 2 * $size, 2 * $size, 1,
# 'backing_store' => 'Always',
'background_pixel' => $x->white_pixel);
$x->ChangeProperty($win, $x->atom('WM_NAME'), $x->atom('STRING'), 8,
'Replace', "Animation test");
$x->MapWindow($win);
$pm = $x->new_rsrc;
$x->CreatePixmap($pm, $win, $x->root_depth, 2 * $size, 2 * $size);
$gc = $x->new_rsrc;
$x->CreateGC($gc, $pm, 'foreground' => $x->black_pixel,
'graphics_exposures' => 0);
$egc = $x->new_rsrc;
$x->CreateGC($egc, $pm, 'foreground' => $x->white_pixel,
'graphics_exposures' => 0);
$x->PolyFillRectangle($pm, $egc, [(0, 0), 2 * $size, 2 * $size]);
$sel = IO::Select->new($x->connection->fh);
sub r2p {
my($x, $y) = @_;
$x -= .5;
$x *= .75;
$y -= .5;
return [-atan2($y, $x), sqrt($x*$x + $y*$y)];
}
$P = [[['Simple', $gc],
[r2p(0, 0),
r2p(.75, 0),
r2p(1, .25),
r2p(.75, .5),
r2p(.15, .5),
r2p(.15, 1),
r2p(0, 1)]],
[['Convex', $egc],
[r2p(.15, .15),
r2p(.75, .15),
r2p(.85, .25),
r2p(.75, .35),
r2p(.15, .35)]]];
$E = [[['Simple', $gc],
[r2p(0, 0),
r2p(1, 0),
r2p(1, .2),
r2p(.2, .2),
r2p(.2, .4),
r2p(.75, .4),
r2p(.75, .6),
r2p(.2, .6),
r2p(.2, .8),
r2p(1, .8),
r2p(1, 1),
r2p(0, 1)]]];
$R = [[['Simple', $gc],
[r2p(0, 0),
r2p(.75, 0),
r2p(1, .25),
r2p(.75, .5),
r2p(1, 1),
r2p(.85, 1),
r2p(.6, .5),
r2p(.15, .5),
r2p(.15, 1),
r2p(0, 1)]],
[['Convex', $egc],
[r2p(.15, .15),
r2p(.75, .15),
r2p(.85, .25),
r2p(.75, .35),
r2p(.15, .35)]]];
$L = [[['Simple', $gc],
[r2p(0, 0),
r2p(.2, 0),
r2p(.2, .8),
r2p(1, .8),
r2p(1, 1),
r2p(0, 1)]]];
for (;;) {
for $img ($P, $E, $R, $L) {
$r = 5;
while ($r < 6.25 * $size) {
@polys = ();
for $poly (@$img) {
@a = ($poly->[0]);
for $p (@{$poly->[1]}) {
push @{$a[1]}, $size +
$r * $p->[1] * sin($theta + $p->[0]);
push @{$a[1]}, $size +
$r * $p->[1] * cos($theta + $p->[0]);
}
push @polys, [@a];
}
for $poly (@old_polys) {
$x->FillPoly($pm, $egc, $poly->[0][0], 'Origin', @{$poly->[1]})
if $poly->[0][1] != $egc;
}
for $poly (@polys) {
$x->FillPoly($pm, $poly->[0][1], $poly->[0][0], 'Origin',
@{$poly->[1]});
}
$x->CopyArea($pm, $win, $gc, (0, 0), 2 * $size, 2 * $size, (0, 0));
# On my Linux/x86 2.0, anything less than 1/100 sec causes
# other things (e.g., mouse tracking) to slow down terribly.
$x->flush();
select(undef, undef, undef, 1/99);
@old_polys = @polys;
$r *= 1.05;
$theta += .1;
$x->handle_input if $sel->can_read(0);
}
}
}
|