OpenShot Audio Library | OpenShotAudio: juce_ChangeBroadcaster.h Source File

OpenShot Audio Library | OpenShotAudio 0.3.0

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juce_ChangeBroadcaster.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//==============================================================================
34 class JUCE_API ChangeBroadcaster
35{
36public:
37 //==============================================================================
39 ChangeBroadcaster() noexcept;
40
42 virtual ~ChangeBroadcaster();
43
44 //==============================================================================
48 void addChangeListener (ChangeListener* listener);
49
53 void removeChangeListener (ChangeListener* listener);
54
56 void removeAllChangeListeners();
57
58 //==============================================================================
65 void sendChangeMessage();
66
74 void sendSynchronousChangeMessage();
75
81 void dispatchPendingMessages();
82
83private:
84 //==============================================================================
85 class ChangeBroadcasterCallback : public AsyncUpdater
86 {
87 public:
88 ChangeBroadcasterCallback();
89 void handleAsyncUpdate() override;
90
91 ChangeBroadcaster* owner;
92 };
93
94 friend class ChangeBroadcasterCallback;
95 ChangeBroadcasterCallback broadcastCallback;
96 ListenerList <ChangeListener> changeListeners;
97
98 std::atomic<bool> anyListeners { false };
99
100 void callListeners();
101
102 JUCE_DECLARE_NON_COPYABLE (ChangeBroadcaster)
103};
104
105} // namespace juce
juce::AsyncUpdater
Definition: juce_AsyncUpdater.h:39
juce::ChangeBroadcaster
Definition: juce_ChangeBroadcaster.h:35
juce::ChangeListener
Definition: juce_ChangeListener.h:45