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50
51#include "sendframebox.h"
52#include "ui_sendframebox.h"
53
54enum {
55 MaxStandardId = 0x7FF,
56 MaxExtendedId = 0x10000000
57};
58
59enum {
60 MaxPayload = 8,
61 MaxPayloadFd = 64
62};
63
64HexIntegerValidator::HexIntegerValidator(QObject *parent) :
65 QValidator(parent),
66 m_maximum(MaxStandardId)
67{
68}
69
70QValidator::State HexIntegerValidator::validate(QString &input, int &) const
71{
72 bool ok;
73 uint value = input.toUInt(ok: &ok, base: 16);
74
75 if (input.isEmpty())
76 return Intermediate;
77
78 if (!ok || value > m_maximum)
79 return Invalid;
80
81 return Acceptable;
82}
83
84void HexIntegerValidator::setMaximum(uint maximum)
85{
86 m_maximum = maximum;
87}
88
89HexStringValidator::HexStringValidator(QObject *parent) :
90 QValidator(parent),
91 m_maxLength(MaxPayload)
92{
93}
94
95QValidator::State HexStringValidator::validate(QString &input, int &pos) const
96{
97 const int maxSize = 2 * m_maxLength;
98 const QChar space = QLatin1Char(' ');
99 QString data = input;
100 data.remove(c: space);
101
102 if (data.isEmpty())
103 return Intermediate;
104
105 // limit maximum size and forbid trailing spaces
106 if ((data.size() > maxSize) || (data.size() == maxSize && input.endsWith(c: space)))
107 return Invalid;
108
109 // check if all input is valid
110 const QRegularExpression re(QStringLiteral("^[[:xdigit:]]*$"));
111 if (!re.match(subject: data).hasMatch())
112 return Invalid;
113
114 // insert a space after every two hex nibbles
115 const QRegularExpression insertSpace(QStringLiteral("(?:[[:xdigit:]]{2} )*[[:xdigit:]]{3}"));
116 if (insertSpace.match(subject: input).hasMatch()) {
117 input.insert(i: input.size() - 1, c: space);
118 pos = input.size();
119 }
120
121 return Acceptable;
122}
123
124void HexStringValidator::setMaxLength(int maxLength)
125{
126 m_maxLength = maxLength;
127}
128
129SendFrameBox::SendFrameBox(QWidget *parent) :
130 QGroupBox(parent),
131 m_ui(new Ui::SendFrameBox)
132{
133 m_ui->setupUi(this);
134
135 m_hexIntegerValidator = new HexIntegerValidator(this);
136 m_ui->frameIdEdit->setValidator(m_hexIntegerValidator);
137 m_hexStringValidator = new HexStringValidator(this);
138 m_ui->payloadEdit->setValidator(m_hexStringValidator);
139
140 connect(sender: m_ui->dataFrame, signal: &QRadioButton::toggled, slot: [this](bool set) {
141 if (set)
142 m_ui->flexibleDataRateBox->setEnabled(true);
143 });
144
145 connect(sender: m_ui->remoteFrame, signal: &QRadioButton::toggled, slot: [this](bool set) {
146 if (set) {
147 m_ui->flexibleDataRateBox->setEnabled(false);
148 m_ui->flexibleDataRateBox->setChecked(false);
149 }
150 });
151
152 connect(sender: m_ui->errorFrame, signal: &QRadioButton::toggled, slot: [this](bool set) {
153 if (set) {
154 m_ui->flexibleDataRateBox->setEnabled(false);
155 m_ui->flexibleDataRateBox->setChecked(false);
156 }
157 });
158
159 connect(sender: m_ui->extendedFormatBox, signal: &QCheckBox::toggled, slot: [this](bool set) {
160 m_hexIntegerValidator->setMaximum(set ? MaxExtendedId : MaxStandardId);
161 });
162
163 connect(sender: m_ui->flexibleDataRateBox, signal: &QCheckBox::toggled, slot: [this](bool set) {
164 m_hexStringValidator->setMaxLength(set ? MaxPayloadFd : MaxPayload);
165 m_ui->bitrateSwitchBox->setEnabled(set);
166 if (!set)
167 m_ui->bitrateSwitchBox->setChecked(false);
168 });
169
170 auto frameIdTextChanged = [this]() {
171 const bool hasFrameId = !m_ui->frameIdEdit->text().isEmpty();
172 m_ui->sendButton->setEnabled(hasFrameId);
173 m_ui->sendButton->setToolTip(hasFrameId
174 ? QString() : tr(s: "Cannot send because no Frame ID was given."));
175 };
176 connect(sender: m_ui->frameIdEdit, signal: &QLineEdit::textChanged, slot: frameIdTextChanged);
177 frameIdTextChanged();
178
179 connect(sender: m_ui->sendButton, signal: &QPushButton::clicked, slot: [this]() {
180 const uint frameId = m_ui->frameIdEdit->text().toUInt(ok: nullptr, base: 16);
181 QString data = m_ui->payloadEdit->text();
182 const QByteArray payload = QByteArray::fromHex(hexEncoded: data.remove(c: QLatin1Char(' ')).toLatin1());
183
184 QCanBusFrame frame = QCanBusFrame(frameId, payload);
185 frame.setExtendedFrameFormat(m_ui->extendedFormatBox->isChecked());
186 frame.setFlexibleDataRateFormat(m_ui->flexibleDataRateBox->isChecked());
187 frame.setBitrateSwitch(m_ui->bitrateSwitchBox->isChecked());
188
189 if (m_ui->errorFrame->isChecked())
190 frame.setFrameType(QCanBusFrame::ErrorFrame);
191 else if (m_ui->remoteFrame->isChecked())
192 frame.setFrameType(QCanBusFrame::RemoteRequestFrame);
193
194 emit sendFrame(frame);
195 });
196}
197
198SendFrameBox::~SendFrameBox()
199{
200 delete m_ui;
201}
202

source code of qtserialbus/examples/serialbus/can/sendframebox.cpp