#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) , _centralWidget(new CentralWidget) ,_leftWidget(new LeftWidget) { ui->setupUi(this); this->setToolTip("....."); setCentralWidget(_centralWidget); addDockWidget(Qt::LeftDockWidgetArea, _leftWidget); } MainWindow::~MainWindow() { delete ui; }