Missed files

src/domain/UBAngleWidget.cpp

+#include "UBAngleWidget.h"
+#include <QPainter>
+
+UBAngleWidget::UBAngleWidget(QWidget *parent)
+    : QWidget(parent)
+{
+    this->setFixedSize(45,30);
+    this->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint);
+    this->setAttribute(Qt::WA_TranslucentBackground);
+
+    QImage mask_img(width(), height(), QImage::Format_Mono);
+    mask_img.fill(0xff);
+    QPainter mask_ptr(&mask_img);
+    mask_ptr.setBrush( QBrush( QColor(0, 0, 0) ) );
+    mask_ptr.drawRoundedRect(0,0,this->geometry().width() - 6,this->geometry().height() - 6,1,1);
+    bmpMask = QBitmap::fromImage(mask_img);
+    this->setMask(bmpMask);
+}
+
+UBAngleWidget::~UBAngleWidget()
+{
+
+}
+
+void UBAngleWidget::paintEvent(QPaintEvent *event)
+{
+    Q_UNUSED(event);
+
+    this->move(this->cursor().pos().x(), this->cursor().pos().y() - 30);
+
+    QPainter painter(this);
+    painter.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
+    QBrush brush(Qt::white);
+    painter.setBrush(brush);
+    painter.drawRoundedRect(1,1,this->geometry().width() - 10,this->geometry().height() - 10,1,1);
+
+    painter.setPen(QColor(85,50,127));
+    painter.setFont(QFont("Arial", 10));
+    painter.drawText(1,1,this->geometry().width() - 10,this->geometry().height() - 10, Qt::AlignCenter, text);
+}
+
+void UBAngleWidget::setText(QString newText)
+{
+    text = newText;
+    text.append(QChar(176));
+}
\ No newline at end of file

src/domain/UBAngleWidget.h

+#ifndef UBANGLEWIDGET_H
+#define UBANGLEWIDGET_H
+
+#include <QWidget>
+#include <QBitmap>
+
+class UBAngleWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    UBAngleWidget(QWidget *parent = 0);
+    ~UBAngleWidget();
+
+    void setText(QString);
+
+protected:
+    void paintEvent(QPaintEvent *event);
+
+private:
+    QString text;
+    QBitmap bmpMask;
+};
+
+#endif // UBANGLEWIDGET_H