BluezQt

macros.h
1 /*
2  * BluezQt - Asynchronous Bluez wrapper library
3  *
4  * SPDX-FileCopyrightText: 2015 David Rosca <[email protected]>
5  *
6  * SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
7  */
8 
9 #ifndef BLUEZQT_MACROS_H
10 #define BLUEZQT_MACROS_H
11 
12 // clang-format off
13 
14 // Change property value and emit propertyChanged signal
15 #define PROPERTY_CHANGED(var, type_cast, signal) \
16  if (var != value.type_cast()) { \
17  var = value.type_cast(); \
18  Q_EMIT q.lock()->signal(var); \
19  }
20 
21 #define PROPERTY_CHANGED2(var, value, signal) \
22  const auto &val = value; \
23  if (var != val) { \
24  var = val; \
25  Q_EMIT q.lock()->signal(var); \
26  }
27 
28 // Clears property value and emit propertyChanged signal
29 #define PROPERTY_INVALIDATED(var, empty, signal) \
30  if (var != empty) { \
31  var = empty; \
32  Q_EMIT q.lock()->signal(var); \
33  }
34 
35 #endif // BLUEZQT_MACROS_H
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