Argus Camera Sample
Argus Camera Sample
Main Page
Related Pages
Namespaces
Classes
Files
File List
File Members
All
Classes
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Friends
Macros
Pages
modules
TrackedUniqueObject.h
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
3
*
4
* Redistribution and use in source and binary forms, with or without
5
* modification, are permitted provided that the following conditions
6
* are met:
7
* * Redistributions of source code must retain the above copyright
8
* notice, this list of conditions and the following disclaimer.
9
* * Redistributions in binary form must reproduce the above copyright
10
* notice, this list of conditions and the following disclaimer in the
11
* documentation and/or other materials provided with the distribution.
12
* * Neither the name of NVIDIA CORPORATION nor the names of its
13
* contributors may be used to endorse or promote products derived
14
* from this software without specific prior written permission.
15
*
16
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
17
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
20
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
24
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
*/
28
29
#ifndef ARGUS_APPS_CAMERA_UI_COMMON_TRACKEDUNIQUEOBJECT_H
30
#define ARGUS_APPS_CAMERA_UI_COMMON_TRACKEDUNIQUEOBJECT_H
31
32
#include "Error.h"
33
34
namespace
ArgusSamples
35
{
36
37
/**
38
* A class tracking an Argus object through the TrackedUniqueObj below. The track/untrack functions
39
* are called whenever an Argus object is assigend to/removed from the TrackedUniqueObj object.
40
*/
41
template
<
typename
T>
class
Tracker
42
{
43
public
:
44
virtual
~Tracker
()
45
{
46
}
47
48
/**
49
* Called when the object is assigned to a TrackedUniqueObj
50
*/
51
virtual
bool
track
(T *obj) = 0;
52
53
/**
54
* Called when the object is removed from a TrackedUniqueObj
55
*/
56
virtual
bool
untrack
(T *ob) = 0;
57
};
58
59
/**
60
* This class helps track construction and destruction of Argus objects. Tracker classes are
61
* using it to track Argus objects.
62
* It exposes several functions of the Argus::UniqueObj class to allow it to be seamlessly
63
* replaced by a TrackedUniqueObj.
64
*/
65
template
<
typename
T>
class
TrackedUniqueObj
66
{
67
public
:
68
TrackedUniqueObj
()
69
:
m_tracker
(NULL)
70
{
71
}
72
73
~TrackedUniqueObj
()
74
{
75
PROPAGATE_ERROR_CONTINUE(
reset
());
76
}
77
78
T*
get
()
const
79
{
80
return
m_obj
.get();
81
}
82
83
bool
reset
(T *obj = NULL,
Tracker<T>
*tracker = NULL)
84
{
85
if
(obj && !tracker)
86
ORIGINATE_ERROR(
"Need to specify a tracker if the object is set."
);
87
88
// untrack the previous object
89
if
(
m_obj
)
90
{
91
assert(
m_tracker
);
92
PROPAGATE_ERROR(
m_tracker
->untrack(
m_obj
.get()));
93
}
94
95
m_obj
.reset(obj);
96
97
// track the new object
98
if
(
m_obj
)
99
{
100
assert(tracker);
101
m_tracker
= tracker;
102
103
PROPAGATE_ERROR(
m_tracker
->track(
m_obj
.get()));
104
}
105
106
return
true
;
107
}
108
109
operator
bool()
const
110
{
111
return
!!
m_obj
;
112
}
113
114
// allow this class to access private track/untrack functions from the Tracker class
115
friend
class
Tracker
<T>;
116
117
private
:
118
Tracker<T>
*
m_tracker
;
119
Argus::UniqueObj<T>
m_obj
;
120
};
121
122
};
// namespace ArgusSamples
123
124
#endif // ARGUS_APPS_CAMERA_UI_COMMON_TRACKEDUNIQUEOBJECT_H
Generated on Thu Jul 20 2023 23:53:11 for Argus Camera Sample by
1.8.1