Add InitializeWidget before login.

src/windows/InitializeWidget.cpp

@@ -0,0 +1,30 @@
+#include "InitializeWidget.h"
+
+#include <QLabel>
+#include <QVBoxLayout>
+#include <QProgressBar>
+
+InitializeWidget::InitializeWidget(QWidget* aParent)
+    : QWidget(aParent)
+    , mMessage(new QLabel(this))
+    , mProgressBar(new QProgressBar(this))
+{
+    setContentsMargins(0, 0, 0, 0);
+    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+
+    QVBoxLayout* layout = new QVBoxLayout(this);
+    layout->addWidget(mMessage);
+    layout->addWidget(mProgressBar);
+
+    QPixmap pixmap = QPixmap("./cfgs/initialize.jpg");
+    mMessage->setPixmap(pixmap);
+    mMessage->setScaledContents(true);
+    mProgressBar->setTextVisible(true);
+    mProgressBar->setFormat("Initializing %p%");
+    mProgressBar->setAlignment(Qt::AlignCenter);
+}
+
+void InitializeWidget::setMessage(const QString& aMessage)
+{
+    mProgressBar->setValue(aMessage.toInt());
+}