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Write values dialog preparations

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This commit is contained in:
0xFEEDC0DE64
2021-05-09 17:53:06 +02:00
parent c686ac87f4
commit 3a3c385a55
10 changed files with 376 additions and 1 deletions
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47
changevaluesdialog.cpp Normal file
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@ -0,0 +1,47 @@
#include "changevaluesdialog.h"
#include "ui_changevaluesdialog.h"
// Qt includes
#include <QDebug>
#include <QModbusTcpClient>
ChangeValuesDialog::ChangeValuesDialog(QModbusTcpClient &modbus, QWidget *parent) :
QDialog{parent},
m_ui{std::make_unique<Ui::ChangeValuesDialog>()},
m_modbus{modbus}
{
m_ui->setupUi(this);
qDebug() << "called";
m_ui->tableView->setModel(&m_model);
m_ui->spinBoxFirstRegister->setValue(m_model.firstRegister());
m_ui->spinBoxCount->setValue(m_model.count());
connect(m_ui->spinBoxFirstRegister, &QSpinBox::valueChanged, &m_model, &ChangeValuesModel::setFirstRegister);
connect(m_ui->spinBoxCount, &QSpinBox::valueChanged, &m_model, &ChangeValuesModel::setCount);
connect(m_ui->buttonBox, &QDialogButtonBox::accepted, this, &ChangeValuesDialog::sendRequest);
{
const auto addItem = [&](const auto &text, const auto &value){
m_ui->comboBoxType->addItem(text, QVariant::fromValue<QModbusDataUnit::RegisterType>(value));
};
addItem(tr("Discrete Inputs"), QModbusDataUnit::DiscreteInputs);
addItem(tr("Coils"), QModbusDataUnit::Coils);
addItem(tr("Input Registers"), QModbusDataUnit::InputRegisters);
addItem(tr("Holding Registers"), QModbusDataUnit::HoldingRegisters);
}
}
ChangeValuesDialog::~ChangeValuesDialog()
{
qDebug() << "called";
}
void ChangeValuesDialog::sendRequest()
{
accept();
}

31
changevaluesdialog.h Normal file
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@ -0,0 +1,31 @@
#pragma once
// system includes
#include <memory>
// Qt includes
#include <QDialog>
// local includes
#include "changevaluesmodel.h"
// forward declares
class QModbusTcpClient;
namespace Ui {class ChangeValuesDialog; }
class ChangeValuesDialog : public QDialog
{
Q_OBJECT
public:
explicit ChangeValuesDialog(QModbusTcpClient &modbus, QWidget *parent = nullptr);
~ChangeValuesDialog() override;
private slots:
void sendRequest();
private:
const std::unique_ptr<Ui::ChangeValuesDialog> m_ui;
QModbusTcpClient &m_modbus;
ChangeValuesModel m_model;
};

93
changevaluesdialog.ui Normal file
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@ -0,0 +1,93 @@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>ChangeValuesDialog</class>
<widget class="QDialog" name="ChangeValuesDialog">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>300</height>
</rect>
</property>
<property name="windowTitle">
<string>Change values</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout" stretch="0,1,0">
<item>
<layout class="QFormLayout" name="formLayout">
<item row="0" column="0">
<widget class="QLabel" name="label">
<property name="text">
<string>TextLabel</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QComboBox" name="comboBoxType"/>
</item>
<item row="1" column="0">
<widget class="QLabel" name="labelFirstRegister">
<property name="text">
<string>First reister:</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QSpinBox" name="spinBoxFirstRegister">
<property name="maximum">
<number>9999</number>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QLabel" name="labelCount">
<property name="text">
<string>Count:</string>
</property>
</widget>
</item>
<item row="2" column="1">
<widget class="QSpinBox" name="spinBoxCount">
<property name="maximum">
<number>9999</number>
</property>
</widget>
</item>
</layout>
</item>
<item>
<widget class="QTableView" name="tableView"/>
</item>
<item>
<widget class="QDialogButtonBox" name="buttonBox">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="standardButtons">
<set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
</property>
</widget>
</item>
</layout>
</widget>
<resources/>
<connections>
<connection>
<sender>buttonBox</sender>
<signal>rejected()</signal>
<receiver>ChangeValuesDialog</receiver>
<slot>reject()</slot>
<hints>
<hint type="sourcelabel">
<x>316</x>
<y>260</y>
</hint>
<hint type="destinationlabel">
<x>286</x>
<y>274</y>
</hint>
</hints>
</connection>
</connections>
</ui>

134
changevaluesmodel.cpp Normal file
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@ -0,0 +1,134 @@
#include "changevaluesmodel.h"
// Qt includes
#include <QDebug>
ChangeValuesModel::ChangeValuesModel(QObject *parent) :
QAbstractTableModel{parent}
{
m_registers.resize(m_count);
qDebug() << "size =" << m_registers.size();
}
ChangeValuesModel::~ChangeValuesModel()
{
qDebug() << "called";
}
QModelIndex ChangeValuesModel::index(int row, int column, const QModelIndex &parent) const
{
Q_ASSERT(!parent.isValid());
return createIndex(row, column);
}
QModelIndex ChangeValuesModel::parent(const QModelIndex &child) const
{
Q_UNUSED(child)
return {};
}
int ChangeValuesModel::rowCount(const QModelIndex &parent) const
{
Q_ASSERT(!parent.isValid());
return m_count;
}
int ChangeValuesModel::columnCount(const QModelIndex &parent) const
{
Q_ASSERT(!parent.isValid());
return 1;
}
QVariant ChangeValuesModel::data(const QModelIndex &index, int role) const
{
Q_ASSERT(index.isValid());
switch (role)
{
case Qt::DisplayRole:
return QString::number(m_registers.at(m_firstRegister + index.row()));
case Qt::EditRole:
return m_registers.at(m_firstRegister + index.row());
}
return {};
}
QVariant ChangeValuesModel::headerData(int section, Qt::Orientation orientation, int role) const
{
switch (orientation)
{
case Qt::Horizontal:
Q_ASSERT(section == 0);
switch (role)
{
case Qt::DisplayRole:
case Qt::EditRole:
switch (section)
{
case 0: return tr("Value");
}
__builtin_unreachable();
break;
}
break;
case Qt::Vertical:
switch (role)
{
case Qt::DisplayRole: return QString::number(m_firstRegister + section);
case Qt::EditRole: return m_firstRegister + section;
}
default:
__builtin_unreachable();
}
return {};
}
Qt::ItemFlags ChangeValuesModel::flags(const QModelIndex &index) const
{
return QAbstractTableModel::flags(index) | Qt::ItemIsEditable;
}
bool ChangeValuesModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
qDebug() << "setData" << index << value << Qt::ItemDataRole(role);
if (!value.canConvert<uint16_t>())
{
qCritical() << "wrong type";
return false;
}
switch (role)
{
case Qt::EditRole:
m_registers[index.row() + m_firstRegister] = value.value<uint16_t>();
return true;
}
return false;
}
void ChangeValuesModel::setFirstRegister(uint16_t firstRegister)
{
beginResetModel();
m_firstRegister = firstRegister;
if (m_registers.size() < m_firstRegister + m_count)
m_registers.resize(m_firstRegister + m_count);
endResetModel();
}
void ChangeValuesModel::setCount(uint16_t count)
{
beginResetModel();
m_count = count;
if (m_registers.size() < m_firstRegister + m_count)
m_registers.resize(m_firstRegister + m_count);
endResetModel();
}

34
changevaluesmodel.h Normal file
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@ -0,0 +1,34 @@
#pragma once
// Qt includes
#include <QAbstractTableModel>
#include <QVector>
class ChangeValuesModel : public QAbstractTableModel
{
public:
explicit ChangeValuesModel(QObject *parent = nullptr);
~ChangeValuesModel() override;
uint16_t firstRegister() const { return m_firstRegister; }
uint16_t count() const { return m_count; }
QModelIndex index(int row, int column, const QModelIndex &parent) const override;
QModelIndex parent(const QModelIndex &child) const override;
int rowCount(const QModelIndex &parent) const override;
int columnCount(const QModelIndex &parent) const override;
QVariant data(const QModelIndex &index, int role) const override;
QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
Qt::ItemFlags flags(const QModelIndex &index) const override;
bool setData(const QModelIndex &index, const QVariant &value, int role) override;
public slots:
void setFirstRegister(uint16_t firstRegister);
void setCount(uint16_t count);
private:
uint16_t m_firstRegister{};
uint16_t m_count{100};
QVector<uint16_t> m_registers;
};

9
mainwindow.cpp
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@ -12,6 +12,7 @@
// local includes
#include "modbustablemodel.h"
#include "changevaluesdialog.h"
// utilities
namespace {
@ -60,6 +61,7 @@ MainWindow::MainWindow(QWidget *parent) :
connect(m_ui->pushButtonConnect, &QAbstractButton::pressed, this, &MainWindow::connectPressed);
connect(m_ui->pushButtonRequest, &QAbstractButton::pressed, this, &MainWindow::requestPressed);
connect(m_ui->pushButtonWrite, &QAbstractButton::pressed, this, &MainWindow::writePressed);
m_ui->tableView->setModel(m_model.get());
}
@ -156,6 +158,13 @@ void MainWindow::requestPressed()
}
}
void MainWindow::writePressed()
{
ChangeValuesDialog dialog{*m_modbus, this};
dialog.exec();
qDebug() << "called";
}
void MainWindow::modbusErrorOccured(int error)
{
const auto typedError = QModbusDevice::Error(error);

1
mainwindow.h
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@ -24,6 +24,7 @@ public:
private slots:
void connectPressed();
void requestPressed();
void writePressed();
void modbusErrorOccured(int error);
void modbusStateChanged(int state);

22
mainwindow.ui
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@ -37,7 +37,7 @@
<item>
<widget class="QLineEdit" name="lineEditServer">
<property name="text">
<string>192.168.0.75</string>
<string>192.168.8.116</string>
</property>
</widget>
</item>
@ -287,6 +287,26 @@
</property>
</spacer>
</item>
<item>
<widget class="QPushButton" name="pushButtonWrite">
<property name="text">
<string>Write values</string>
</property>
</widget>
</item>
<item>
<spacer name="horizontalSpacer_4">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QLabel" name="labelRequestStatus">
<property name="text">

1
modbustablemodel.cpp
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@ -25,6 +25,7 @@ QModelIndex ModbusTableModel::index(int row, int column, const QModelIndex &pare
QModelIndex ModbusTableModel::parent(const QModelIndex &child) const
{
Q_UNUSED(child)
return {};
}

5
qtmodbustester.pro
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@ -5,12 +5,17 @@ CONFIG += c++17
DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000
SOURCES += main.cpp \
changevaluesdialog.cpp \
changevaluesmodel.cpp \
mainwindow.cpp \
modbustablemodel.cpp
FORMS += \
changevaluesdialog.ui \
mainwindow.ui
HEADERS += \
changevaluesdialog.h \
changevaluesmodel.h \
mainwindow.h \
modbustablemodel.h