[libcalamaresui] Polish on LogWidget

- apply coding style
- reduce shadowed variables
- use Q_EMIT to mark signals

src/libcalamaresui/viewpages/ExecutionViewStep.cpp

@@ -27,17 +27,17 @@
 #include "utils/Retranslator.h"
 #include "widgets/LogWidget.h"
 
-#include <QDir>
-#include <QLabel>
-#include <QProgressBar>
-#include <QVBoxLayout>
-#include <QHBoxLayout>
-#include <QToolBar>
 #include <QAction>
-#include <QToolButton>
-#include <QTabWidget>
+#include <QDir>
+#include <QHBoxLayout>
+#include <QLabel>
 #include <QPlainTextEdit>
+#include <QProgressBar>
 #include <QTabBar>
+#include <QTabWidget>
+#include <QToolBar>
+#include <QToolButton>
+#include <QVBoxLayout>
 
 static Calamares::Slideshow*
 makeSlideshow( QWidget* parent )
@@ -81,8 +81,8 @@ ExecutionViewStep::ExecutionViewStep( QObject* parent )
 
     m_progressBar->setMaximum( 10000 );
 
-    m_tab_widget->addTab(m_slideshow->widget(), "Slideshow");
-    m_tab_widget->addTab(m_log_widget, "Log");
+    m_tab_widget->addTab( m_slideshow->widget(), "Slideshow" );
+    m_tab_widget->addTab( m_log_widget, "Log" );
     m_tab_widget->tabBar()->hide();
 
     layout->addWidget( m_tab_widget );
@@ -94,13 +94,13 @@ ExecutionViewStep::ExecutionViewStep( QObject* parent )
     bottomLayout->addWidget( m_label );
 
     QToolBar* toolBar = new QToolBar;
-    auto toggleLogAction = toolBar->addAction(QIcon::fromTheme("utilities-terminal"), "Toggle log");
-    auto toggleLogButton = dynamic_cast<QToolButton*>(toolBar->widgetForAction(toggleLogAction));
+    auto toggleLogAction = toolBar->addAction( QIcon::fromTheme( "utilities-terminal" ), "Toggle log" );
+    auto toggleLogButton = dynamic_cast< QToolButton* >( toolBar->widgetForAction( toggleLogAction ) );
     connect( toggleLogButton, &QToolButton::clicked, this, &ExecutionViewStep::toggleLog );
 
 
-    barLayout->addWidget(m_progressBar);
-    barLayout->addWidget(toolBar);
+    barLayout->addWidget( m_progressBar );
+    barLayout->addWidget( toolBar );
 
 
     connect( JobQueue::instance(), &JobQueue::progress, this, &ExecutionViewStep::updateFromJobQueue );
@@ -176,7 +176,7 @@ ExecutionViewStep::onActivate()
         const auto instanceDescriptor
             = std::find_if( instanceDescriptors.constBegin(),
                             instanceDescriptors.constEnd(),
-                            [=]( const Calamares::InstanceDescription& d ) { return d.key() == instanceKey; } );
+                            [ = ]( const Calamares::InstanceDescription& d ) { return d.key() == instanceKey; } );
         int weight = moduleDescriptor.weight();
         if ( instanceDescriptor != instanceDescriptors.constEnd() && instanceDescriptor->explicitWeight() )
         {
@@ -228,7 +228,7 @@ ExecutionViewStep::updateFromJobQueue( qreal percent, const QString& message )
 void
 ExecutionViewStep::toggleLog()
 {
-    m_tab_widget->setCurrentIndex((m_tab_widget->currentIndex() + 1) % m_tab_widget->count());
+    m_tab_widget->setCurrentIndex( ( m_tab_widget->currentIndex() + 1 ) % m_tab_widget->count() );
 }
 
 void
@@ -239,4 +239,3 @@ ExecutionViewStep::onLeave()
 
 
 }  // namespace Calamares
-

src/libcalamaresui/widgets/LogWidget.cpp

@@ -1,16 +1,16 @@
 #include "LogWidget.h"
-#include <QStackedLayout>
 #include "utils/Logger.h"
+#include <QFile>
+#include <QStackedLayout>
 #include <QTextStream>
 #include <QThread>
-#include <QFile>
 
 namespace Calamares
 {
 
-LogThread::LogThread(QObject *parent)
-    : QThread(parent) {
-
+LogThread::LogThread( QObject* parent )
+    : QThread( parent )
+{
 }
 
 LogThread::~LogThread()
@@ -20,63 +20,65 @@ LogThread::~LogThread()
     wait();
 }
 
-void LogThread::run()
+void
+LogThread::run()
 {
-    auto filePath = Logger::logFile();
+    const auto filePath = Logger::logFile();
 
     qint64 lastPosition = 0;
 
-    while (!QThread::currentThread()->isInterruptionRequested()) {
-        auto filePath = Logger::logFile();
-        QFile file(filePath);
+    while ( !QThread::currentThread()->isInterruptionRequested() )
+    {
+        QFile file( filePath );
 
         qint64 fileSize = file.size();
         // Check whether the file size has changed since last time
         // we read the file.
-        if (lastPosition != fileSize && file.open(QFile::ReadOnly | QFile::Text)) {
+        if ( lastPosition != fileSize && file.open( QFile::ReadOnly | QFile::Text ) )
+        {
 
             // Start reading at the position we ended up last time we read the file.
-            file.seek(lastPosition);
+            file.seek( lastPosition );
 
-            QTextStream in(&file);
+            QTextStream in( &file );
             auto chunk = in.readAll();
             qint64 newPosition = in.pos();
 
             lastPosition = newPosition;
 
-            onLogChunk(chunk);
+            Q_EMIT onLogChunk( chunk );
         }
-        QThread::msleep(100);
+        QThread::msleep( 100 );
     }
 }
 
-LogWidget::LogWidget(QWidget *parent)
-    : QWidget(parent)
+LogWidget::LogWidget( QWidget* parent )
+    : QWidget( parent )
     , m_text( new QPlainTextEdit )
     , m_log_thread( this )
 {
-    auto layout = new QStackedLayout(this);
-    setLayout(layout);
+    auto layout = new QStackedLayout( this );
+    setLayout( layout );
 
-    m_text->setReadOnly(true);
+    m_text->setReadOnly( true );
 
-    QFont monospaceFont("monospace");
-    monospaceFont.setStyleHint(QFont::Monospace);
-    m_text->setFont(monospaceFont);
+    QFont monospaceFont( "monospace" );
+    monospaceFont.setStyleHint( QFont::Monospace );
+    m_text->setFont( monospaceFont );
 
-    layout->addWidget(m_text);
+    layout->addWidget( m_text );
 
-    connect(&m_log_thread, &LogThread::onLogChunk, this, &LogWidget::handleLogChunk);
+    connect( &m_log_thread, &LogThread::onLogChunk, this, &LogWidget::handleLogChunk );
 
     m_log_thread.start();
 }
 
 void
-LogWidget::handleLogChunk(const QString &logChunk)
+LogWidget::handleLogChunk( const QString& logChunk )
 {
-    m_text->appendPlainText(logChunk);
-    m_text->moveCursor(QTextCursor::End);
+    m_text->appendPlainText( logChunk );
+    m_text->moveCursor( QTextCursor::End );
     m_text->ensureCursorVisible();
 }
 
-}
+}  // namespace Calamares

src/libcalamaresui/widgets/LogWidget.h

@@ -1,9 +1,9 @@
 #ifndef LIBCALAMARESUI_LOGWIDGET_H
 #define LIBCALAMARESUI_LOGWIDGET_H
 
-#include <QWidget>
 #include <QPlainTextEdit>
 #include <QThread>
+#include <QWidget>
 
 namespace Calamares
 {
@@ -15,11 +15,11 @@ class LogThread : public QThread
     void run() override;
 
 public:
-    explicit LogThread(QObject *parent = nullptr);
+    explicit LogThread( QObject* parent = nullptr );
     ~LogThread() override;
 
 signals:
-    void onLogChunk(const QString &logChunk);
+    void onLogChunk( const QString& logChunk );
 };
 
 class LogWidget : public QWidget
@@ -28,11 +28,12 @@ class LogWidget : public QWidget
 
     QPlainTextEdit* m_text;
     LogThread m_log_thread;
-public:
-    explicit LogWidget(QWidget *parent = nullptr);
 
-    void handleLogChunk(const QString &logChunk);
+public:
+    explicit LogWidget( QWidget* parent = nullptr );
+
+    void handleLogChunk( const QString& logChunk );
 };
 
-}
+}  // namespace Calamares
 #endif  // LOGWIDGET_H