Use UI file in opcuaviewer example

Change-Id: Ifbf9aae2476eb09840928700d7b37ecc059cefd5
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

4 files changed, 246 insertions, 119 deletions

diff --git a/examples/opcua/opcuaviewer/mainwindow.cpp b/examples/opcua/opcuaviewer/mainwindow.cpp
index 7c7c989..488dda1 100644
--- a/examples/opcua/opcuaviewer/mainwindow.cpp
+++ b/examples/opcua/opcuaviewer/mainwindow.cpp
@@ -51,24 +51,13 @@
 #include "mainwindow.h"
 #include "opcuamodel.h"
 #include "certificatedialog.h"
+#include "ui_mainwindow.h"
 
-#include <QAction>
 #include <QApplication>
 #include <QDir>
-#include <QLineEdit>
-#include <QComboBox>
 #include <QMessageBox>
-#include <QHBoxLayout>
-#include <QVBoxLayout>
-#include <QPushButton>
-#include <QLabel>
-#include <QMenu>
-#include <QMenuBar>
 #include <QTextCharFormat>
-#include <QPlainTextEdit>
 #include <QTextBlock>
-#include <QTreeView>
-#include <QHeaderView>
 #include <QOpcUaProvider>
 #include <QOpcUaAuthenticationInformation>
 #include <QOpcUaErrorState>
@@ -124,75 +113,34 @@ static void messageHandler(QtMsgType type, const QMessageLogContext &context, co
 }
 
 MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
-  , mOpcUaPlugin(new QComboBox(this))
-  , mHost(new QLineEdit(this))
-  , mServers(new QComboBox(this))
-  , mEndpoints(new QComboBox(this))
-  , mFindServersButton(new QPushButton(tr("Find Servers"), this))
-  , mGetEndpointsButton(new QPushButton(tr("Get Endpoints"), this))
-  , mConnectButton(new QPushButton(tr("Connect"), this))
-  , mLog(new QPlainTextEdit(this))
-  , mTreeView(new QTreeView(this))
+  , ui(new Ui::MainWindow)
   , mOpcUaModel(new OpcUaModel(this))
   , mOpcUaProvider(new QOpcUaProvider(this))
 {
+    ui->setupUi(this);
     mainWindowGlobal = this;
 
-    auto menubar = menuBar();
-    auto fileMenu = menubar->addMenu(tr("File"));
-    auto quitAction = fileMenu->addAction(tr("Quit"), this, &QWidget::close);
-    quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
-    auto helpMenu = menubar->addMenu(tr("Help"));
-    auto aboutAction = helpMenu->addAction(tr("About Qt"), this, &QApplication::aboutQt);
-    aboutAction->setShortcut(QKeySequence(QKeySequence::HelpContents));
-
-    auto centralWidget = new QWidget;
-    auto vbox = new QVBoxLayout(centralWidget);
-    setCentralWidget(centralWidget);
-
-    int row = 0;
-    auto grid = new QGridLayout;
-    grid->addWidget(new QLabel(tr("Select OPC UA Backend:")), row, 0);
-    grid->addWidget(mOpcUaPlugin, row, 1);
-    grid->addWidget(new QLabel(tr("Select host to discover:")), ++row, 0);
-    grid->addWidget(mHost, row, 1);
-    grid->addWidget(mFindServersButton, row, 2);
-    grid->addWidget(new QLabel(tr("Select OPC UA Server:")), ++row, 0);
-    grid->addWidget(mServers, row, 1);
-    grid->addWidget(mGetEndpointsButton, row, 2);
-    grid->addWidget(new QLabel(tr("Select OPC UA Endpoint:")), ++row, 0);
-    grid->addWidget(mEndpoints, row, 1);
-    grid->addWidget(mConnectButton, row, 2);
-
-    vbox->addLayout(grid);
-    vbox->addWidget(mTreeView);
-    vbox->addWidget(new QLabel(tr("Log:")));
-    vbox->addWidget(mLog);
-
-    mHost->setText("opc.tcp://localhost:48010");
-    mEndpoints->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
+    connect(ui->quitAction, &QAction::triggered, this, &QWidget::close);
+    ui->quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
+
+    connect(ui->aboutAction, &QAction::triggered, this, &QApplication::aboutQt);
+    ui->aboutAction->setShortcut(QKeySequence(QKeySequence::HelpContents));
 
     updateUiState();
 
-    mOpcUaPlugin->addItems(mOpcUaProvider->availableBackends());
-    mLog->setReadOnly(true);
-    mLog->setLineWrapMode(QPlainTextEdit::NoWrap);
-    setMinimumWidth(800);
-    mTreeView->setModel(mOpcUaModel);
-    mTreeView->header()->setSectionResizeMode(QHeaderView::ResizeToContents);
-    mTreeView->setTextElideMode(Qt::ElideRight);
-    mTreeView->setAlternatingRowColors(true);
-    mTreeView->setSelectionBehavior(QAbstractItemView::SelectItems);
-
-    if (mOpcUaPlugin->count() == 0) {
-        mOpcUaPlugin->setDisabled(true);
-        mConnectButton->setDisabled(true);
+    ui->opcUaPlugin->addItems(mOpcUaProvider->availableBackends());
+    ui->treeView->setModel(mOpcUaModel);
+    ui->treeView->header()->setSectionResizeMode(QHeaderView::ResizeToContents);
+
+    if (ui->opcUaPlugin->count() == 0) {
+        ui->opcUaPlugin->setDisabled(true);
+        ui->connectButton->setDisabled(true);
         QMessageBox::critical(this, tr("No OPCUA plugins available"), tr("The list of available OPCUA plugins is empty. No connection possible."));
     }
 
-    connect(mFindServersButton, &QPushButton::clicked, this, &MainWindow::findServers);
-    connect(mGetEndpointsButton, &QPushButton::clicked, this, &MainWindow::getEndpoints);
-    connect(mConnectButton, &QPushButton::clicked, this, &MainWindow::connectToServer);
+    connect(ui->findServersButton, &QPushButton::clicked, this, &MainWindow::findServers);
+    connect(ui->getEndpointsButton, &QPushButton::clicked, this, &MainWindow::getEndpoints);
+    connect(ui->connectButton, &QPushButton::clicked, this, &MainWindow::connectToServer);
     oldMessageHandler = qInstallMessageHandler(&messageHandler);
 
     setupPkiConfiguration();
@@ -202,6 +150,11 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
     //! [Application Identity]
 }
 
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
 //! [PKI Configuration]
 void MainWindow::setupPkiConfiguration()
 {
@@ -225,7 +178,7 @@ void MainWindow::setupPkiConfiguration()
 void MainWindow::createClient()
 {
     if (mOpcUaClient == nullptr) {
-        mOpcUaClient = mOpcUaProvider->createClient(mOpcUaPlugin->currentText());
+        mOpcUaClient = mOpcUaProvider->createClient(ui->opcUaPlugin->currentText());
         if (!mOpcUaClient) {
             const QString message(tr("Connecting to the given sever failed. See the log for details."));
             log(message, QString(), Qt::red);
@@ -256,7 +209,7 @@ void MainWindow::findServers()
 {
     QStringList localeIds;
     QStringList serverUris;
-    QUrl url(mHost->text());
+    QUrl url(ui->host->text());
 
     updateUiState();
 
@@ -275,11 +228,11 @@ void MainWindow::findServersComplete(const QVector<QOpcUaApplicationDescription>
     QOpcUaApplicationDescription server;
 
     if (isSuccessStatus(statusCode)) {
-        mServers->clear();
+        ui->servers->clear();
         for (const auto &server : servers) {
             QVector<QString> urls = server.discoveryUrls();
             for (const auto &url : qAsConst(urls))
-                mServers->addItem(url);
+                ui->servers->addItem(url);
         }
     }
 
@@ -288,11 +241,11 @@ void MainWindow::findServersComplete(const QVector<QOpcUaApplicationDescription>
 
 void MainWindow::getEndpoints()
 {
-    mEndpoints->clear();
+    ui->endpoints->clear();
     updateUiState();
 
-    if (mServers->currentIndex() >= 0) {
-        const QString serverUrl = mServers->currentText();
+    if (ui->servers->currentIndex() >= 0) {
+        const QString serverUrl = ui->servers->currentText();
         createClient();
         mOpcUaClient->requestEndpoints(serverUrl);
     }
@@ -319,7 +272,7 @@ void MainWindow::getEndpointsComplete(const QVector<QOpcUaEndpointDescription> &
             const QString EndpointName = QString("%1 (%2)")
                     .arg(endpoint.securityPolicy())
                     .arg(modes[endpoint.securityMode()]);
-            mEndpoints->addItem(EndpointName, index++);
+            ui->endpoints->addItem(EndpointName, index++);
         }
     }
 
@@ -333,8 +286,8 @@ void MainWindow::connectToServer()
         return;
     }
 
-    if (mEndpoints->currentIndex() >= 0) {
-        m_endpoint = mEndpointList[mEndpoints->currentIndex()];
+    if (ui->endpoints->currentIndex() >= 0) {
+        m_endpoint = mEndpointList[ui->endpoints->currentIndex()];
         createClient();
         mOpcUaClient->connectToEndpoint(m_endpoint);
     }
@@ -367,7 +320,7 @@ void MainWindow::namespacesArrayUpdated(const QStringList &namespaceArray)
 
     disconnect(mOpcUaClient, &QOpcUaClient::namespaceArrayUpdated, this, &MainWindow::namespacesArrayUpdated);
     mOpcUaModel->setOpcUaClient(mOpcUaClient);
-    mTreeView->header()->setSectionResizeMode(1 /* Value column*/, QHeaderView::Interactive);
+    ui->treeView->header()->setSectionResizeMode(1 /* Value column*/, QHeaderView::Interactive);
 }
 
 void MainWindow::clientError(QOpcUaClient::ClientError error)
@@ -383,44 +336,44 @@ void MainWindow::clientState(QOpcUaClient::ClientState state)
 void MainWindow::updateUiState()
 {
     // allow changing the backend only if it was not already created
-    mOpcUaPlugin->setEnabled(mOpcUaClient == nullptr);
-    mConnectButton->setText(mClientConnected ? tr("Disconnect") : tr("Connect"));
+    ui->opcUaPlugin->setEnabled(mOpcUaClient == nullptr);
+    ui->connectButton->setText(mClientConnected ? tr("Disconnect") : tr("Connect"));
 
     if (mClientConnected) {
-        mHost->setEnabled(false);
-        mServers->setEnabled(false);
-        mEndpoints->setEnabled(false);
-        mFindServersButton->setEnabled(false);
-        mGetEndpointsButton->setEnabled(false);
-        mConnectButton->setEnabled(true);
+        ui->host->setEnabled(false);
+        ui->servers->setEnabled(false);
+        ui->endpoints->setEnabled(false);
+        ui->findServersButton->setEnabled(false);
+        ui->getEndpointsButton->setEnabled(false);
+        ui->connectButton->setEnabled(true);
     } else {
-        mHost->setEnabled(true);
-        mServers->setEnabled(mServers->count() > 0);
-        mEndpoints->setEnabled(mEndpoints->count() > 0);
+        ui->host->setEnabled(true);
+        ui->servers->setEnabled(ui->servers->count() > 0);
+        ui->endpoints->setEnabled(ui->endpoints->count() > 0);
 
-        mFindServersButton->setDisabled(mHost->text().isEmpty());
-        mGetEndpointsButton->setEnabled(mServers->currentIndex() != -1);
-        mConnectButton->setEnabled(mEndpoints->currentIndex() != -1);
+        ui->findServersButton->setDisabled(ui->host->text().isEmpty());
+        ui->getEndpointsButton->setEnabled(ui->servers->currentIndex() != -1);
+        ui->connectButton->setEnabled(ui->endpoints->currentIndex() != -1);
     }
 
     if (!mOpcUaClient) {
-        mServers->setEnabled(false);
-        mEndpoints->setEnabled(false);
-        mGetEndpointsButton->setEnabled(false);
-        mConnectButton->setEnabled(false);
+        ui->servers->setEnabled(false);
+        ui->endpoints->setEnabled(false);
+        ui->getEndpointsButton->setEnabled(false);
+        ui->connectButton->setEnabled(false);
     }
 }
 
 void MainWindow::log(const QString &text, const QString &context, QColor color)
 {
-    auto cf = mLog->currentCharFormat();
+    auto cf = ui->log->currentCharFormat();
     cf.setForeground(color);
-    mLog->setCurrentCharFormat(cf);
-    mLog->appendPlainText(text);
+    ui->log->setCurrentCharFormat(cf);
+    ui->log->appendPlainText(text);
     if (!context.isEmpty()) {
         cf.setForeground(Qt::gray);
-        mLog->setCurrentCharFormat(cf);
-        mLog->insertPlainText(context);
+        ui->log->setCurrentCharFormat(cf);
+        ui->log->insertPlainText(context);
     }
 }
 
diff --git a/examples/opcua/opcuaviewer/mainwindow.h b/examples/opcua/opcuaviewer/mainwindow.h
index e19059a..c506df6 100644
--- a/examples/opcua/opcuaviewer/mainwindow.h
+++ b/examples/opcua/opcuaviewer/mainwindow.h
@@ -56,19 +56,19 @@
 
 QT_BEGIN_NAMESPACE
 
-class QPlainTextEdit;
-class QLineEdit;
-class QComboBox;
-class QPushButton;
 class QOpcUaProvider;
-class QTreeView;
 class OpcUaModel;
 
+namespace Ui {
+class MainWindow;
+}
+
 class MainWindow : public QMainWindow
 {
     Q_OBJECT
 public:
     explicit MainWindow(QWidget *parent = nullptr);
+    ~MainWindow();
     Q_INVOKABLE void log(const QString &text, const QString &context, QColor color);
     void log(const QString &text, QColor color = Qt::black);
 
@@ -93,15 +93,7 @@ private:
     bool createPkiPath(const QString &path);
 
 private:
-    QComboBox *mOpcUaPlugin;
-    QLineEdit *mHost;
-    QComboBox *mServers;
-    QComboBox *mEndpoints;
-    QPushButton *mFindServersButton;
-    QPushButton *mGetEndpointsButton;
-    QPushButton *mConnectButton;
-    QPlainTextEdit *mLog;
-    QTreeView *mTreeView;
+    Ui::MainWindow *ui;
     OpcUaModel *mOpcUaModel;
     QOpcUaProvider *mOpcUaProvider;
     QOpcUaClient *mOpcUaClient = nullptr;
diff --git a/examples/opcua/opcuaviewer/mainwindow.ui b/examples/opcua/opcuaviewer/mainwindow.ui
new file mode 100644
index 0000000..6fe0420
--- /dev/null
+++ b/examples/opcua/opcuaviewer/mainwindow.ui
@@ -0,0 +1,181 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="minimumSize">
+   <size>
+    <width>800</width>
+    <height>0</height>
+   </size>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QGridLayout" name="gridLayout">
+    <item row="1" column="0">
+     <widget class="QTreeView" name="treeView">
+      <property name="alternatingRowColors">
+       <bool>true</bool>
+      </property>
+      <property name="selectionBehavior">
+       <enum>QAbstractItemView::SelectItems</enum>
+      </property>
+     </widget>
+    </item>
+    <item row="0" column="0">
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <item>
+       <layout class="QGridLayout" name="gridLayout_2">
+        <item row="0" column="0">
+         <widget class="QLabel" name="label">
+          <property name="text">
+           <string>Select OPC UA Backend:</string>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="2">
+         <widget class="QPushButton" name="findServersButton">
+          <property name="text">
+           <string>Find Servers</string>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="2">
+         <widget class="QPushButton" name="getEndpointsButton">
+          <property name="text">
+           <string>Get Endpoints</string>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="1">
+         <widget class="QComboBox" name="servers"/>
+        </item>
+        <item row="2" column="0">
+         <widget class="QLabel" name="label_3">
+          <property name="text">
+           <string>Select OPC UA Server:</string>
+          </property>
+         </widget>
+        </item>
+        <item row="1" column="1">
+         <widget class="QLineEdit" name="host">
+          <property name="text">
+           <string>opc.tcp://localhost:48010</string>
+          </property>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QComboBox" name="opcUaPlugin"/>
+        </item>
+        <item row="1" column="0">
+         <widget class="QLabel" name="label_2">
+          <property name="text">
+           <string>Select host to discover:</string>
+          </property>
+         </widget>
+        </item>
+        <item row="3" column="0">
+         <widget class="QLabel" name="label_5">
+          <property name="text">
+           <string>Select OPC UA Endpoint:</string>
+          </property>
+         </widget>
+        </item>
+        <item row="3" column="1">
+         <widget class="QComboBox" name="endpoints">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+         </widget>
+        </item>
+        <item row="3" column="2">
+         <widget class="QPushButton" name="connectButton">
+          <property name="text">
+           <string>Connect</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </item>
+    <item row="2" column="0">
+     <widget class="QLabel" name="label_4">
+      <property name="text">
+       <string>Log:</string>
+      </property>
+     </widget>
+    </item>
+    <item row="3" column="0">
+     <widget class="QPlainTextEdit" name="log">
+      <property name="lineWrapMode">
+       <enum>QPlainTextEdit::NoWrap</enum>
+      </property>
+      <property name="readOnly">
+       <bool>true</bool>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>30</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuFile">
+    <property name="title">
+     <string>File</string>
+    </property>
+    <addaction name="quitAction"/>
+   </widget>
+   <widget class="QMenu" name="menuHelp">
+    <property name="title">
+     <string>Help</string>
+    </property>
+    <addaction name="aboutAction"/>
+   </widget>
+   <addaction name="menuFile"/>
+   <addaction name="menuHelp"/>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+  <action name="quitAction">
+   <property name="text">
+    <string>Quit</string>
+   </property>
+  </action>
+  <action name="actionHelp">
+   <property name="text">
+    <string>Help</string>
+   </property>
+  </action>
+  <action name="actionAbout_Qt">
+   <property name="text">
+    <string>About Qt</string>
+   </property>
+  </action>
+  <action name="aboutAction">
+   <property name="text">
+    <string>About Qt</string>
+   </property>
+  </action>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/examples/opcua/opcuaviewer/opcuaviewer.pro b/examples/opcua/opcuaviewer/opcuaviewer.pro
index bc641d0..cbe8057 100644
--- a/examples/opcua/opcuaviewer/opcuaviewer.pro
+++ b/examples/opcua/opcuaviewer/opcuaviewer.pro
@@ -19,4 +19,5 @@ HEADERS += \
     certificatedialog.h
 
 FORMS += \
-    certificatedialog.ui
+    certificatedialog.ui \
+    mainwindow.ui \