Add status bar instead of using an message box for displaying error messages.

mainwindow.cpp

@@ -16,6 +16,16 @@ MainWindow::MainWindow(Worker *worker, QWidget *parent)
     , m_width(70)
     , m_progressRunning(false)
     , m_progressValue(0) {
+
+
+    this->setStatusBar(new QStatusBar(this));
+    QFont f;
+    f.setStyleHint(QFont::Monospace);
+    f.setWeight(QFont::Bold);
+    f.setFamily("Misc Fixed");
+    f.setPixelSize(12);
+    this->statusBar()->setFont(f);
+
     ui->setupUi(this);
 
     ui->updateProgress->setRange(0, 100);
@@ -214,30 +224,6 @@ void MainWindow::onReplaceLast(QString text, QString suffix) {
 }
 
 void MainWindow::onShowErrorMessage(QString title, QString text) {
-    text = text.leftJustified(50, ' ');
-    QMessageBox msgBox(QMessageBox::NoIcon, title,
-                       text, QMessageBox::Ok,
-                       this, Qt::FramelessWindowHint);
-    msgBox.resize(100, 50);
-
-    // msg.setStyleSheet("background-color: rgb(0, 0, 0);")
-    // msg.setStyleSheet("text-color: rgb(255, 255, 255);")
-
-    msgBox.setStyleSheet("QMessageBox{border: 1px solid black; background-color:white}");
-    msgBox.setDefaultButton(QMessageBox::Ok);
-    msgBox.defaultButton()->setVisible(false);
-
-    QTimer *t = new QTimer(this);
-    connect(t, SIGNAL(timeout()), msgBox.defaultButton(), SLOT(click()));
-    t->setSingleShot(true);
-    t->start(5 * 1000);
-
-    msgBox.show();
-    msgBox.move(0, 0);
-
-    if(msgBox.exec() == QMessageBox::Ok) {
-      // do something
-    } else {
-      // do something else
-    }
+    this->statusBar()->showMessage( // timeout: 5000
+        QString(title + ": " + text).leftJustified(80, ' '), 20000);
 }

mainwindow.h

@@ -3,6 +3,7 @@
 
 #include <QMainWindow>
 #include <QTimer>
+#include <QStatusBar>
 
 QT_BEGIN_NAMESPACE
 namespace Ui { class MainWindow; }