Mouse detection

mainwindow.cpp

@@ -6,9 +6,32 @@ MainWindow::MainWindow(QWidget *parent)
     , ui(new Ui::MainWindow)
 {
     ui->setupUi(this);
+    QObject::connect(ui->gridPreview, &GridPreview::updatedContents,
+                     this, &MainWindow::onGridUpdated);
+    ui->gridPreview->updatedContents();
 }
 
 MainWindow::~MainWindow()
 {
     delete ui;
 }
+
+void MainWindow::onGridUpdated()
+{
+    ui->textPreview->setPlainText(ui->gridPreview->toLuaTable());
+
+    ui->spinGridWidth->setValue(ui->gridPreview->getWidth());
+    ui->spinGridHeight->setValue(ui->gridPreview->getHeight());
+}
+
+void MainWindow::on_spinGridWidth_valueChanged(int arg1)
+{
+    ui->gridPreview->setSize(arg1, ui->gridPreview->getHeight());
+}
+
+
+void MainWindow::on_spinGridHeight_valueChanged(int arg1)
+{
+    ui->gridPreview->setSize(ui->gridPreview->getWidth(), arg1);
+}
+