pc-system/loadingWidget.h

#ifndef LOADINGWIDGET_H
#define LOADINGWIDGET_H

#include <QWidget>

class QLabel;
class QMovie;

class LoadingWidget : public QWidget
{
    Q_OBJECT
public:
    // 获取全局实例
    static LoadingWidget* instance();

    // 显示加载 (可选parent，不传则居中于屏幕)
    static void showLoading(QWidget* parent = nullptr, const QString& text = "Loading...");

    // 隐藏加载
    static void hideLoading();

protected:
    void resizeEvent(QResizeEvent *event) override;

private:
    explicit LoadingWidget(QWidget *parent = nullptr);
    static LoadingWidget* m_instance;

    void updatePosition();
    void initUI();

    QLabel* m_loadingLabel;
    QLabel* m_textLabel;
    QMovie* m_movie;
};

#endif // LOADINGWIDGET_H