Main window frameless + Switching to MSVC2019

sources/mainwindow.cpp

@@ -6,9 +6,31 @@ MainWindow::MainWindow(QWidget *parent)
     , ui(new Ui::MainWindow)
 {
     ui->setupUi(this);
+    ui->window_title->setText(this->windowTitle());
+    this->setWindowFlags(Qt::FramelessWindowHint);
     init();
 }
 
+void MainWindow::mousePressEvent(QMouseEvent *event) {
+    m_nMouseClick_X_Coordinate = event->x();
+    m_nMouseClick_Y_Coordinate = event->y();
+}
+
+void MainWindow::mouseMoveEvent(QMouseEvent *event) {
+    if (isWidgetIsTitleBar()) {
+        move(event->globalX() - m_nMouseClick_X_Coordinate ,
+             event->globalY() - m_nMouseClick_Y_Coordinate);
+    }
+
+}
+
+bool MainWindow::isWidgetIsTitleBar() {
+    return (m_nMouseClick_X_Coordinate >= xmin &&
+            m_nMouseClick_X_Coordinate < xmax &&
+            m_nMouseClick_Y_Coordinate >= ymin &&
+            m_nMouseClick_Y_Coordinate < ymax);
+}
+
 MainWindow::~MainWindow()
 {
     delete ui;
@@ -33,6 +55,10 @@ void MainWindow::init() {
     objectId.insert(ui->wed_button->objectName(), Identifier::wed);
     objectId.insert(ui->thu_button->objectName(), Identifier::thu);
     objectId.insert(ui->fri_button->objectName(), Identifier::fri);
+    xmax = ui->window_title->x() + ui->window_title->width();
+    xmin = ui->window_title->x();
+    ymax = ui->window_title->x() + ui->window_title->height();
+    ymin = ui->window_title->y();
     connect(ui->aboutButton, &QPushButton::clicked, this, &MainWindow::open_about);
     connect(ui->template_settings_button, &QPushButton::clicked, this, &MainWindow::edit_template);
     connect(ui->dateEdit, &QDateEdit::dateTimeChanged, this, &MainWindow::compute_week_number);

sources/mainwindow.h

@@ -7,6 +7,8 @@
 #define SAVE_FILE_VERSION 1
 #define KEY_SAVE_FILE_VERSION "version"
 
+#include <QMouseEvent>
+#include <QGraphicsView>
 #include <QJsonArray>
 #include <QMainWindow>
 #include <QDir>
@@ -59,6 +61,16 @@ private:
     QMap<int, Week> weeks;
     QMap<QString, Identifier> objectId;
 
+    void mousePressEvent(QMouseEvent *event);
+    void mouseMoveEvent(QMouseEvent *event);
+    int m_nMouseClick_X_Coordinate;
+    int m_nMouseClick_Y_Coordinate;
+    int xmax;
+    int xmin;
+    int ymax;
+    int ymin;
+    inline bool isWidgetIsTitleBar();
+
 public slots:
     void compute_week_number(const QDateTime &dt);
     void compute_time();