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39
40#include "qlowenergydescriptordata.h"
41
42#include <QtCore/qbytearray.h>
43
44QT_BEGIN_NAMESPACE
45
46struct QLowEnergyDescriptorDataPrivate : public QSharedData
47{
48 QLowEnergyDescriptorDataPrivate() : readable(true), writable(true) {}
49
50 QBluetoothUuid uuid;
51 QByteArray value;
52 QBluetooth::AttAccessConstraints readConstraints;
53 QBluetooth::AttAccessConstraints writeConstraints;
54 bool readable;
55 bool writable;
56};
57
58/*!
59 \since 5.7
60 \class QLowEnergyDescriptorData
61 \brief The QLowEnergyDescriptorData class is used to create GATT service data.
62 \inmodule QtBluetooth
63 \ingroup shared
64
65 An object of this class provides a descriptor to be added to a
66 \l QLowEnergyCharacteristicData object via \l QLowEnergyCharacteristicData::addDescriptor().
67
68 \note The member functions related to access permissions are only applicable to those
69 types of descriptors for which the Bluetooth specification does not prescribe if
70 and how their values can be accessed.
71
72 \sa QLowEnergyCharacteristicData
73 \sa QLowEnergyServiceData
74 \sa QLowEnergyController::addService
75*/
76
77/*! Creates a new invalid object of this class. */
78QLowEnergyDescriptorData::QLowEnergyDescriptorData() : d(new QLowEnergyDescriptorDataPrivate)
79{
80}
81
82/*!
83 Creates a new object of this class with UUID and value being provided by \a uuid and \a value,
84 respectively.
85 */
86QLowEnergyDescriptorData::QLowEnergyDescriptorData(const QBluetoothUuid &uuid,
87 const QByteArray &value)
88 : d(new QLowEnergyDescriptorDataPrivate)
89{
90 setUuid(uuid);
91 setValue(value);
92}
93
94/*! Constructs a new object of this class that is a copy of \a other. */
95QLowEnergyDescriptorData::QLowEnergyDescriptorData(const QLowEnergyDescriptorData &other)
96 : d(other.d)
97{
98}
99
100/*! Destroys this object. */
101QLowEnergyDescriptorData::~QLowEnergyDescriptorData()
102{
103}
104
105/*! Makes this object a copy of \a other and returns the new value of this object. */
106QLowEnergyDescriptorData &QLowEnergyDescriptorData::operator=(const QLowEnergyDescriptorData &other)
107{
108 d = other.d;
109 return *this;
110}
111
112/*! Returns the value of this descriptor. */
113QByteArray QLowEnergyDescriptorData::value() const
114{
115 return d->value;
116}
117
118/*!
119 Sets the value of this descriptor to \a value. It will be sent to a peer device
120 exactly the way it is provided here, so callers need to take care of things such as endianness.
121 */
122void QLowEnergyDescriptorData::setValue(const QByteArray &value)
123{
124 d->value = value;
125}
126
127/*! Returns the UUID of this descriptor. */
128QBluetoothUuid QLowEnergyDescriptorData::uuid() const
129{
130 return d->uuid;
131}
132
133/*! Sets the UUID of this descriptor to \a uuid. */
134void QLowEnergyDescriptorData::setUuid(const QBluetoothUuid &uuid)
135{
136 d->uuid = uuid;
137}
138
139/*! Returns true if and only if this object has a non-null UUID. */
140bool QLowEnergyDescriptorData::isValid() const
141{
142 return !uuid().isNull();
143}
144
145/*!
146 Specifies whether the value of this descriptor is \a readable and if so, under which
147 \a constraints.
148 \sa setWritePermissions()
149 */
150void QLowEnergyDescriptorData::setReadPermissions(bool readable,
151 QBluetooth::AttAccessConstraints constraints)
152{
153 d->readable = readable;
154 d->readConstraints = constraints;
155}
156
157/*! Returns \c true if the value of this descriptor is readable and \c false otherwise. */
158bool QLowEnergyDescriptorData::isReadable() const
159{
160 return d->readable;
161}
162
163/*!
164 Returns the constraints under which the value of this descriptor can be read. This value
165 is only relevant if \l isReadable() returns \c true.
166 */
167QBluetooth::AttAccessConstraints QLowEnergyDescriptorData::readConstraints() const
168{
169 return d->readConstraints;
170}
171
172/*!
173 Specifies whether the value of this descriptor is \a writable and if so, under which
174 \a constraints.
175 \sa setReadPermissions()
176 */
177void QLowEnergyDescriptorData::setWritePermissions(bool writable,
178 QBluetooth::AttAccessConstraints constraints)
179{
180 d->writable = writable;
181 d->writeConstraints = constraints;
182}
183
184/*! Returns \c true if the value of this descriptor is writable and \c false otherwise. */
185bool QLowEnergyDescriptorData::isWritable() const
186{
187 return d->writable;
188}
189
190/*!
191 Returns the constraints under which the value of this descriptor can be written. This value
192 is only relevant if \l isWritable() returns \c true.
193 */
194QBluetooth::AttAccessConstraints QLowEnergyDescriptorData::writeConstraints() const
195{
196 return d->writeConstraints;
197}
198
199/*!
200 \fn void QLowEnergyDescriptorData::swap(QLowEnergyDescriptorData &other)
201 Swaps this object with \a other.
202 */
203
204/*!
205 Returns \c true if \a d1 and \a d2 are equal with respect to their public state,
206 otherwise returns \c false.
207 */
208bool operator==(const QLowEnergyDescriptorData &d1, const QLowEnergyDescriptorData &d2)
209{
210 return d1.d == d2.d || (
211 d1.uuid() == d2.uuid()
212 && d1.value() == d2.value()
213 && d1.isReadable() == d2.isReadable()
214 && d1.isWritable() == d2.isWritable()
215 && d1.readConstraints() == d2.readConstraints()
216 && d1.writeConstraints() == d2.writeConstraints());
217}
218
219/*!
220 \fn bool operator!=(const QLowEnergyDescriptorData &d1, const QLowEnergyDescriptorData &d2)
221 Returns \c true if \a d1 and \a d2 are not equal with respect to their public state,
222 otherwise returns \c false.
223 */
224
225QT_END_NAMESPACE
226

source code of qtconnectivity/src/bluetooth/qlowenergydescriptordata.cpp