Qt QMainWindow 自定义标题栏

maomao171314

已于 2025-02-14 14:38:37 修改

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分类专栏：杂项文章标签： qt 自定义标题栏 QMainWindow

于 2025-02-13 09:33:14 首次发布

本文链接：https://blog.youkuaiyun.com/maomao171314/article/details/145604748

版权

MainWindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QMouseEvent>
#include <QPushButton>
#include <QLabel>
#include <QWidget>

class MainWindow : public QMainWindow {
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

protected:
    void mousePressEvent(QMouseEvent *event) override;
    void mouseMoveEvent(QMouseEvent *event) override;
    void mouseReleaseEvent(QMouseEvent *event) override;
private slots:
    void onMinimizeClicked();
    void onMaximizeClicked();
    void onCloseClicked();

private:
    void setupUI();
    void setStyles();

    QWidget *titleBar;  // 自定义标题栏
    QLabel *titleLabel;
    QLabel *titleIconLabel;
    QPushButton *minButton;
    QPushButton *maxButton;
    QPushButton *closeButton;
    QPoint lastMousePosition;
    bool isMaximized = false;
    bool mousePressed = false;
};

#endif // MAINWINDOW_H

MainWindow.cpp

#include "QtWin.h"
#include <QVBoxLayout>
#define  BTN_WIDTH 40
#define  BTN_HEIGHT 40
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
    setWindowFlags(Qt::FramelessWindowHint); // 去掉系统标题栏
    setMinimumSize(8