PC 端完成

src/FaceListModel.cpp

@@ -0,0 +1,85 @@
+#include "FaceListModel.h"
+
+FaceListModel::FaceListModel(QObject *parent)
+    : QAbstractListModel(parent)
+{
+}
+
+int FaceListModel::rowCount(const QModelIndex &parent) const
+{
+    if (parent.isValid()) {
+        return 0;
+    }
+    return m_items.size();
+}
+
+QVariant FaceListModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid() || index.row() < 0 || index.row() >= m_items.size()) {
+        return {};
+    }
+
+    const Item &item = m_items.at(index.row());
+    switch (role) {
+    case FaceIdRole: return item.faceId;
+    case StudentIdRole: return item.studentId;
+    case HasPhotoRole: return item.hasPhoto;
+    case PhotoUrlRole: return item.photoUrl;
+    default: return {};
+    }
+}
+
+bool FaceListModel::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+    if (!index.isValid() || index.row() < 0 || index.row() >= m_items.size()) {
+        return false;
+    }
+
+    if (role == StudentIdRole) {
+        m_items[index.row()].studentId = value.toString().trimmed();
+        emit dataChanged(index, index, {role});
+        return true;
+    }
+
+    return false;
+}
+
+Qt::ItemFlags FaceListModel::flags(const QModelIndex &index) const
+{
+    if (!index.isValid()) {
+        return Qt::NoItemFlags;
+    }
+    return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable;
+}
+
+QHash<int, QByteArray> FaceListModel::roleNames() const
+{
+    return {
+        {FaceIdRole, "faceId"},
+        {StudentIdRole, "studentId"},
+        {HasPhotoRole, "hasPhoto"},
+        {PhotoUrlRole, "photoUrl"}
+    };
+}
+
+void FaceListModel::setItems(const QVector<Item> &items)
+{
+    beginResetModel();
+    m_items = items;
+    endResetModel();
+}
+
+QVector<FaceListModel::Item> FaceListModel::items() const
+{
+    return m_items;
+}
+
+void FaceListModel::updateStudentId(int index, const QString &studentId)
+{
+    if (index < 0 || index >= m_items.size()) {
+        return;
+    }
+
+    m_items[index].studentId = studentId.trimmed();
+    emit dataChanged(this->index(index), this->index(index), {StudentIdRole});
+}