Initial commit: add Qt environment monitoring client

mainwindow.h

@@ -0,0 +1,82 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+// 添加GLIBC兼容性支持
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+// 限制GLIBC版本兼容性到2.31
+#if defined(__GLIBC__) && defined(__GLIBC_MINOR__)
+# if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 31)
+#  define GLIBC_MAX_VERSION "2.31"
+# endif
+#endif
+
+#include <QMainWindow>
+#include <QMap>
+
+class QLabel;
+class QPushButton;
+class QLineEdit;
+class QTcpSocket;
+class QTimer;
+class QSpinBox;
+class QCheckBox;
+class QComboBox;
+class QListWidget;
+class QListWidgetItem;
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+public:
+    explicit MainWindow(QWidget *parent = nullptr);
+    ~MainWindow();
+
+private slots:
+    void connectToServer();
+    void onConnected();
+    void onDisconnected();
+    void onReadyRead();
+    void pollData();
+    void onReconnectTimeout();
+    void onReconnectIntervalChanged(int value);
+    void onDeviceSelectionChanged();
+    void refreshDevicesList();
+    void sendControlCommand();
+
+private:
+    void updateDisplayFromJson(const QJsonObject &obj);
+
+private:
+    QLineEdit *m_ipEdit;
+    QLineEdit *m_portEdit;
+    QPushButton *m_connectBtn;
+
+    // 设备列表和选择
+    QComboBox *m_deviceCombo;
+    QPushButton *m_refreshBtn;
+    QLabel *m_currentDeviceLabel;
+
+    QLabel *m_tempLabel;
+    QLabel *m_humLabel;
+    QLabel *m_buzzerLabel;
+    QLabel *m_ledLabels[3];
+
+    QTcpSocket *m_socket;
+    QTimer *m_pollTimer;
+    QTimer *m_reconnectTimer;
+    QSpinBox *m_pollSpin;
+    QSpinBox *m_reconnectSpin;
+    // 控制面板
+    QCheckBox *m_buzzerChk;
+    QCheckBox *m_ledChk[3];
+    QPushButton *m_sendControlBtn;
+
+    // 设备数据管理
+    QString m_currentDeviceId;
+    QMap<QString, QString> m_deviceData;  // device_id -> latest data
+};
+
+#endif // MAINWINDOW_H