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3** Copyright (C) 2012 Denis Shienkov <denis.shienkov@gmail.com>
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50
51#include "dialog.h"
52
53#include <QComboBox>
54#include <QGridLayout>
55#include <QLabel>
56#include <QLineEdit>
57#include <QPushButton>
58#include <QSerialPortInfo>
59#include <QSpinBox>
60
61Dialog::Dialog(QWidget *parent) :
62 QDialog(parent),
63 m_transactionCount(0),
64 m_serialPortLabel(new QLabel(tr(s: "Serial port:"))),
65 m_serialPortComboBox(new QComboBox),
66 m_waitResponseLabel(new QLabel(tr(s: "Wait response, msec:"))),
67 m_waitResponseSpinBox(new QSpinBox),
68 m_requestLabel(new QLabel(tr(s: "Request:"))),
69 m_requestLineEdit(new QLineEdit(tr(s: "Who are you?"))),
70 m_trafficLabel(new QLabel(tr(s: "No traffic."))),
71 m_statusLabel(new QLabel(tr(s: "Status: Not running."))),
72 m_runButton(new QPushButton(tr(s: "Start")))
73{
74 const auto infos = QSerialPortInfo::availablePorts();
75 for (const QSerialPortInfo &info : infos)
76 m_serialPortComboBox->addItem(atext: info.portName());
77
78 m_waitResponseSpinBox->setRange(min: 0, max: 10000);
79 m_waitResponseSpinBox->setValue(100);
80
81 auto mainLayout = new QGridLayout;
82 mainLayout->addWidget(m_serialPortLabel, row: 0, column: 0);
83 mainLayout->addWidget(m_serialPortComboBox, row: 0, column: 1);
84 mainLayout->addWidget(m_waitResponseLabel, row: 1, column: 0);
85 mainLayout->addWidget(m_waitResponseSpinBox, row: 1, column: 1);
86 mainLayout->addWidget(m_runButton, row: 0, column: 2, rowSpan: 2, columnSpan: 1);
87 mainLayout->addWidget(m_requestLabel, row: 2, column: 0);
88 mainLayout->addWidget(m_requestLineEdit, row: 2, column: 1, rowSpan: 1, columnSpan: 3);
89 mainLayout->addWidget(m_trafficLabel, row: 3, column: 0, rowSpan: 1, columnSpan: 4);
90 mainLayout->addWidget(m_statusLabel, row: 4, column: 0, rowSpan: 1, columnSpan: 5);
91 setLayout(mainLayout);
92
93 setWindowTitle(tr(s: "Master"));
94 m_serialPortComboBox->setFocus();
95
96 m_timer.setSingleShot(true);
97
98 connect(sender: m_runButton, signal: &QPushButton::clicked, receiver: this, slot: &Dialog::sendRequest);
99 connect(sender: &m_serial, signal: &QSerialPort::readyRead, receiver: this, slot: &Dialog::readResponse);
100 connect(sender: &m_timer, signal: &QTimer::timeout, receiver: this, slot: &Dialog::processTimeout);
101}
102
103void Dialog::sendRequest()
104{
105 if (m_serial.portName() != m_serialPortComboBox->currentText()) {
106 m_serial.close();
107 m_serial.setPortName(m_serialPortComboBox->currentText());
108
109 if (!m_serial.open(mode: QIODevice::ReadWrite)) {
110 processError(error: tr(s: "Can't open %1, error code %2")
111 .arg(a: m_serial.portName()).arg(a: m_serial.error()));
112 return;
113 }
114 }
115
116 setControlsEnabled(false);
117 m_statusLabel->setText(tr(s: "Status: Running, connected to port %1.")
118 .arg(a: m_serialPortComboBox->currentText()));
119
120 m_serial.write(data: m_requestLineEdit->text().toUtf8());
121 m_timer.start(msec: m_waitResponseSpinBox->value());
122}
123
124void Dialog::readResponse()
125{
126 m_response.append(a: m_serial.readAll());
127}
128
129void Dialog::processTimeout()
130{
131 setControlsEnabled(true);
132 m_trafficLabel->setText(tr(s: "Traffic, transaction #%1:"
133 "\n\r-request: %2"
134 "\n\r-response: %3")
135 .arg(a: ++m_transactionCount)
136 .arg(a: m_requestLineEdit->text())
137 .arg(a: QString::fromUtf8(str: m_response)));
138 m_response.clear();
139}
140
141void Dialog::processError(const QString &error)
142{
143 setControlsEnabled(true);
144 m_statusLabel->setText(tr(s: "Status: Not running, %1.").arg(a: error));
145 m_trafficLabel->setText(tr(s: "No traffic."));
146}
147
148void Dialog::setControlsEnabled(bool enable)
149{
150 m_runButton->setEnabled(enable);
151 m_serialPortComboBox->setEnabled(enable);
152 m_waitResponseSpinBox->setEnabled(enable);
153 m_requestLineEdit->setEnabled(enable);
154}
155

source code of qtserialport/examples/serialport/master/dialog.cpp