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
|
/* FreeJ example scripts
* (c) Copyright 2005 Christoph Rudorff aka MrGoil <goil@dyne.org>
*
* This source code is free software; you can redistribute it and/or
* modify it under the terms of the GNU Public License as published
* by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* This source code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* Please refer to the GNU Public License for more details.
*
* You should have received a copy of the GNU Public License along with
* this source code; if not, write to:
* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
Example how to handle errors in js and freej
run with -D3 and/or -c to see the mess
*/
var cam = new Array();
function do_cam(n) {
var cam_obj = null;
if (cam[n]) {
echo("delete cam"+n);
cam_obj = cam[n];
echo("file: " + cam_obj.get_filename());
rem_layer(cam_obj);
cam[n] = null;
delete (cam_obj); // FIXME: destructor still not called
} else {
file = "/dev/video" + n;
echo("open cam" + n + " " + file);
try {
cam_obj = new CamLayer(320, 240, file);
} catch (e) {
echo ("camExp: " + dumpex(e) );
}
if (cam_obj) {
echo("cam obj: " + cam_obj);
add_layer(cam_obj);
cam[n] = cam_obj;
} else{
echo("cam failed");
}
}
}
// dump Exception
// props: message fileName lineNumber stack name
function dumpex(e) {
var msg = "Dump ex: ";
for (prop in e) {
msg += "'"+prop + "'='" + e[prop]+"', ";
}
return msg;
}
mkbd = new KeyboardController();
register_controller(mkbd);
mkbd.released_q = function() { quit(); }
mkbd.released_c = function() { include("cynosure.js"); }
mkbd.released_p = function() { include("pan_joy.js"); }
mkbd.released_1 = function() { do_cam(0); }
mkbd.released_2 = function() { do_cam(1); }
mkbd.released_3 = function() { echo("\n\n\nSPAM SPAM\n\n"); }
mkbd.released_0 = function() {
echo("test bad geo layer");
try {
echo("try");
g=new GeometryLayer(30,30,90,90); // freej object
echo("\n got geo layer: " + g);
} catch (e) {
echo ("Exp: " + dumpex(e) );
}
echo("test end");
}
mkbd.released_9 = function() {
echo("test bad Array");
try {
echo("try");
g=new Array(-90); // js core object
echo("\n ok got : " + g);
} catch (e) {
echo ("Exp: " + dumpex(e) );
}
echo("test end");
}
mkbd.released_s = function() {
echo("now making unhandled exception:");
g=new GeometryLayer(30,30,90,90);
echo("done (or not ...)");
}
|
