onAppendText() only appends text.

onReplaceLast() replaces the last line in the text edit window.

mainwindow.cpp

@@ -12,10 +12,10 @@ MainWindow::MainWindow(Worker *worker, QWidget *parent)
     : QMainWindow(parent)
     , ui(new Ui::MainWindow)
     , m_worker(worker)
-    , m_width(52) {
+    , m_width(70) {
     ui->setupUi(this);
 
-    ui->updateProgress->setRange(1, 100);
+    ui->updateProgress->setRange(0, 100);
     ui->updateProgress->reset();
 
     QStringList lst;
@@ -57,6 +57,7 @@ MainWindow::MainWindow(Worker *worker, QWidget *parent)
     connect(m_worker, SIGNAL(restartExitTimer()), this, SLOT(onRestartExitTimer()));
     connect(m_worker, SIGNAL(appendText(QString, QString)), this, SLOT(onAppendText(QString, QString)));
     connect(m_worker, SIGNAL(showErrorMessage(QString,QString)), this, SLOT(onShowErrorMessage(QString,QString)));
+    connect(m_worker, SIGNAL(replaceLast(QString, QString)), this, SLOT(onReplaceLast(QString,QString)));
 
     ui->updateStatus->setText(lst.join('\n'));
     ui->updateStatus->setEnabled(true);
@@ -71,7 +72,11 @@ MainWindow::~MainWindow() {
 void MainWindow::customEvent(QEvent *event) {
     if (event->type() == ProgressEvent::type()) {
         int progress = ((ProgressEvent *)(event))->progressPercent();
-        ui->updateProgress->setValue(progress);
+        if (progress > 0) {
+            ui->updateProgress->setValue(progress);
+        } else {
+            ui->updateProgress->reset();
+        }
     }
 }
 
@@ -100,22 +105,36 @@ void MainWindow::onQuit() {
 
 void MainWindow::onAppendText(QString text, QString suffix) {
     QString editText = ui->updateStatus->toPlainText();
+    if (suffix.size() > 0) {
+        editText += QString("\n").leftJustified(m_width-3, '=');
+        editText += " ";
+        editText += (QString("\n") + text).leftJustified(m_width - (2 + suffix.size()) ) + suffix;
+    } else {
+        editText += text.leftJustified(m_width-9);
+    }
+
     QStringList lines = editText.split('\n');
     for (int i=0; i<lines.size(); ++i) {
-        qCritical() << lines.at(i);
+        qDebug() << lines.at(i);
+    } qDebug() << ""; qDebug() << "";
+
+    ui->updateStatus->setPlainText(editText);
+    ui->updateStatus->setEnabled(true);
+}
+
+void MainWindow::onReplaceLast(QString text, QString suffix) {
+    QString editText = ui->updateStatus->toPlainText();
+    QStringList lines = editText.split('\n');
+    if (lines.size() > 0) {
+        lines.removeLast();
+        lines += text.leftJustified(m_width-10) + suffix;
     }
-    if (suffix.contains("[SUCCESS]")) {
+
-        editText += QString("\n").leftJustified(m_width-3, '=');
+    for (int i=0; i<lines.size(); ++i) {
-        editText += QString("\n").leftJustified(m_width-12) + " [SUCCESS]";
+        qDebug() << lines.at(i);
-    } else
+    } qDebug() << ""; qDebug() << "";
-    if (suffix.contains(" [fail]")) {
+
-        editText += QString("\n").leftJustified(m_width-3, '=');
+    ui->updateStatus->setText(lines.join('\n'));
-        editText += QString("\n").leftJustified(m_width-9) + " [fail]";
-    } else {
-        editText += text.leftJustified(m_width-9) + suffix;
-        ui->updateStatus->setPlainText(editText);
-    }
-    ui->updateStatus->setText(editText);
     ui->updateStatus->setEnabled(true);
 }
 

mainwindow.h

@@ -21,7 +21,8 @@ public:
     ~MainWindow();
 
 public slots:
-    void onAppendText(QString, QString);
+    void onAppendText(QString, QString suffix = "");
+    void onReplaceLast(QString, QString);
     void onShowErrorMessage(QString, QString);
     void onStopStartTimer();
     void onRestartExitTimer();

worker.cpp

@@ -26,7 +26,7 @@
 
 QString const Worker::UPDATE_STEP_OK(" [  ok]");
 QString const Worker::UPDATE_STEP_DONE(" [done]");
-QString const Worker::UPDATE_STEP_FAIL(" [fail]");
+QString const Worker::UPDATE_STEP_FAIL(" [FAIL]");
 QString const Worker::UPDATE_STEP_SUCCESS(" [SUCCESS]");
 
 Worker::Worker(hwinf *hw,
@@ -130,6 +130,18 @@ void Worker::privateUpdate() {
     QPushButton *start = qobject_cast<QPushButton *>(QObject::sender());
     start->setEnabled(false);
 
+    //emit appendText("\nConnecting backend ...");
+    //
+    //for (int i=0;i <= 100; ++i) {
+    //    setProgress(i);
+    //    QThread::msleep(100);
+    //}
+    //emit replaceLast("Connecting backend ...", UPDATE_STEP_OK);
+    //emit appendText(QString("UPDATE "), UPDATE_STEP_SUCCESS);
+    //emit appendText(QString("UPDATE "), UPDATE_STEP_FAIL);
+    // setProgress(0);
+    // return;
+
     emit stopStartTimer();
     emit disableExit();
     m_updateProcessRunning = true;
@@ -211,7 +223,7 @@ void Worker::privateUpdate() {
                                             progress = 90;
                                             setProgress(progress);
                                             m_ismasClient.setProgressInPercent(progress);
-                                            emit appendText(QString(""), UPDATE_STEP_SUCCESS);
+                                            emit appendText(QString("Update process "), UPDATE_STEP_SUCCESS);
 
                                             IsmasClient::sendRequestReceiveResponse(IsmasClient::APISM::DB_PORT,
                                                 QString("#M=APISM#C=CMD_EVENT#J=") +

worker.h

@@ -180,7 +180,8 @@ public:
     //}
 
 signals:
-    void appendText(QString, QString);
+    void appendText(QString, QString suffix = "");
+    void replaceLast(QString, QString);
     void showErrorMessage(QString title, QString description);
     void stopStartTimer();
     void restartExitTimer();