OpenShot Audio Library | OpenShotAudio 0.3.2
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juce_OptionalScopedPointer.h
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2017 - ROLI Ltd.
6
7 JUCE is an open source library subject to commercial or open-source
8 licensing.
9
10 The code included in this file is provided under the terms of the ISC license
11 http://www.isc.org/downloads/software-support-policy/isc-license. Permission
12 To use, copy, modify, and/or distribute this software for any purpose with or
13 without fee is hereby granted provided that the above copyright notice and
14 this permission notice appear in all copies.
15
16 JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
17 EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
18 DISCLAIMED.
19
20 ==============================================================================
21*/
22
23namespace juce
24{
25
26//==============================================================================
36template <class ObjectType>
38{
39public:
40 //==============================================================================
43
52 : object (objectToHold), shouldDelete (takeOwnership)
53 {
54 }
55
69
79 {
80 if (object != objectToTransferFrom.object)
81 {
82 reset();
83 object.reset (objectToTransferFrom.object.release());
84 }
85
86 shouldDelete = objectToTransferFrom.shouldDelete;
87 return *this;
88 }
89
95 {
96 reset();
97 }
98
99 //==============================================================================
101 inline operator ObjectType*() const noexcept { return object.get(); }
102
104 inline ObjectType* get() const noexcept { return object.get(); }
105
107 inline ObjectType& operator*() const noexcept { return *object; }
108
110 inline ObjectType* operator->() const noexcept { return object.get(); }
111
112 //==============================================================================
116 ObjectType* release() noexcept { return object.release(); }
117
121 void reset()
122 {
123 if (! shouldDelete)
124 object.release();
125 else
126 object.reset();
127 }
128
130 void clear() { reset(); }
131
140 {
141 if (object.get() != newObject)
142 {
143 reset();
144 object.reset (newObject);
145 }
146
147 shouldDelete = takeOwnership;
148 }
149
152 {
153 set (newObject, true);
154 }
155
158 {
159 set (newObject, false);
160 }
161
165 bool willDeleteObject() const noexcept { return shouldDelete; }
166
167 //==============================================================================
172 {
173 object.swapWith (other.object);
174 std::swap (shouldDelete, other.shouldDelete);
175 }
176
177private:
178 //==============================================================================
179 std::unique_ptr<ObjectType> object;
180 bool shouldDelete = false;
181};
182
183} // namespace juce
void swapWith(OtherArrayType &otherArray) noexcept
Definition juce_Array.h:621
OptionalScopedPointer(ObjectType *objectToHold, bool takeOwnership)
void setNonOwned(ObjectType *newObject)
void set(ObjectType *newObject, bool takeOwnership)
ObjectType * get() const noexcept
ObjectType & operator*() const noexcept
OptionalScopedPointer & operator=(OptionalScopedPointer &objectToTransferFrom)
void setOwned(ObjectType *newObject)
OptionalScopedPointer(OptionalScopedPointer &objectToTransferFrom)
void swapWith(OptionalScopedPointer< ObjectType > &other) noexcept
ObjectType * operator->() const noexcept