resource_object.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2016 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Magnus Norddahl
27 */
28 
29 #pragma once
30 
31 #include "resource.h"
32 
33 namespace clan
34 {
37 
40  {
41  public:
43  {
44  }
45 
46  template<typename Type>
47  ResourceObject(const Resource<Type> &resource)
48  : object(resource.handle())
49  {
50  }
51 
52  bool is_null() const { return !object; }
53 
54  template<typename Type>
56  {
57  if (object)
58  {
59  std::shared_ptr<Resource_Impl<Type> > resource = std::dynamic_pointer_cast<Resource_Impl<Type>>(object);
60  if (!resource)
61  throw Exception("ResourceObject type mismatch");
62  return Resource<Type>(resource);
63  }
64  else
65  {
66  throw Exception("ResourceObject is null");
67  }
68  }
69 
70  bool operator<(const ResourceObject &other) const { return object < other.object; }
71  bool operator<=(const ResourceObject &other) const { return object <= other.object; }
72  bool operator>(const ResourceObject &other) const { return object > other.object; }
73  bool operator>=(const ResourceObject &other) const { return object >= other.object; }
74  bool operator==(const ResourceObject &other) const { return object == other.object; }
75  bool operator!=(const ResourceObject &other) const { return object != other.object; }
76 
77  private:
78  std::shared_ptr<Resource_BaseImpl> object;
79  };
80 
82 }
Resource proxy of any type.
Definition: resource_object.h:39
bool operator>=(const ResourceObject &other) const
Definition: resource_object.h:73
Definition: clanapp.h:35
Resource proxy of a specific type.
Definition: resource.h:57
ResourceObject(const Resource< Type > &resource)
Definition: resource_object.h:47
Top-level exception class.
Definition: exception.h:41
bool operator==(const ResourceObject &other) const
Definition: resource_object.h:74
bool operator<=(const ResourceObject &other) const
Definition: resource_object.h:71
bool operator>(const ResourceObject &other) const
Definition: resource_object.h:72
Resource< Type > cast()
Definition: resource_object.h:55
ResourceObject()
Definition: resource_object.h:42
bool operator!=(const ResourceObject &other) const
Definition: resource_object.h:75
Definition: resource.h:46
bool operator<(const ResourceObject &other) const
Definition: resource_object.h:70
bool is_null() const
Definition: resource_object.h:52