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@ -4,18 +4,19 @@
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#include <QInputDialog>
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#include <QMessageBox>
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#include <QHeaderView>
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#include <QLabel>
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#include <QMenu>
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#include <QDebug>
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#include <QMenuBar>
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//#include <QFile>
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//#include <QTextStream>
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//#include <QFileDialog>
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MainWindow::MainWindow(QWidget *parent)
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: QMainWindow(parent)
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#include <QFile>
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#include <QTextStream>
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#include <QFileDialog>
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#include <QFileInfo>
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#include <QToolBar>
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#include <QToolButton>
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MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
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{
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setupUI();
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setWindowTitle("学生信息管理系统");
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}
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MainWindow::~MainWindow() {}
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@ -25,232 +26,317 @@ void MainWindow::setupUI()
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QWidget *central = new QWidget(this);
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setCentralWidget(central);
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// 顶部菜单栏
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QMenuBar *menuBar = this->menuBar();
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fileMenu = menuBar->addMenu("文件(&F)"); // 快捷键 alt + F
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editMenu = menuBar->addMenu("编辑(&E)"); // 快捷键 alt + E
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// TODO
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// 左侧班级树控件
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// Action 定义
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QAction *actImport = new QAction("导入", this);
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QAction *actSave = new QAction("保存", this);
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QAction *actAddCls = new QAction("新增班级", this);
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QAction *actDelCls = new QAction("删除班级", this);
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QAction *actRenCls = new QAction("重命名班级", this);
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// 工具栏（唯一一行）
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QToolBar *toolBar = addToolBar("主工具栏");
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toolBar->setMovable(false);
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toolBar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
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// 默认显示“文件”相关
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toolBar->addAction(actImport);
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toolBar->addAction(actSave);
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// 伪菜单栏按钮
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QToolButton *fileBtn = new QToolButton(this);
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fileBtn->setText("文件");
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fileBtn->setToolButtonStyle(Qt::ToolButtonTextOnly);
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fileBtn->setAutoRaise(true); // 看起来像菜单
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QToolButton *editBtn = new QToolButton(this);
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editBtn->setText("编辑");
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editBtn->setToolButtonStyle(Qt::ToolButtonTextOnly);
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editBtn->setAutoRaise(true);
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// 放到菜单栏位置
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QWidget *menuWidget = new QWidget(this);
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QHBoxLayout *menuLayout = new QHBoxLayout(menuWidget);
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menuLayout->setContentsMargins(6, 0, 0, 0);
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menuLayout->setSpacing(10);
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menuLayout->addWidget(fileBtn);
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menuLayout->addWidget(editBtn);
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menuLayout->addStretch();
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menuBar()->setCornerWidget(menuWidget, Qt::TopLeftCorner);
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// 按钮点击 → 切换工具栏
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connect(fileBtn, &QToolButton::clicked, this, [=]() {
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toolBar->clear();
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toolBar->addAction(actImport);
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toolBar->addAction(actSave);
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});
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connect(editBtn, &QToolButton::clicked, this, [=]() {
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toolBar->clear();
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toolBar->addAction(actAddCls);
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toolBar->addAction(actDelCls);
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toolBar->addAction(actRenCls);
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});
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// 核心控件初始化
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tree = new QTreeWidget;
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tree->setHeaderLabel("班级列表");
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tree->setContextMenuPolicy(Qt::CustomContextMenu);
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// 显示学生信息控件
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table = new QTableWidget;
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table->setColumnCount(5);
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table = new QTableWidget(0, 5);
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table->setHorizontalHeaderLabels({"姓名", "性别", "年龄", "学号", "电话"});
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table->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
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table->setSelectionBehavior(QAbstractItemView::SelectRows);
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// 输入学生信息控件
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// 右侧编辑面板
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nameEdit = new QLineEdit;
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genderEdit = new QLineEdit;
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ageEdit = new QLineEdit;
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idEdit = new QLineEdit;
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phoneEdit = new QLineEdit;
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addBtn = new QPushButton("新增学生");
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delBtn = new QPushButton("删除学生");
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addBtn = new QPushButton("新增");
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delBtn = new QPushButton("删除");
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updateBtn = new QPushButton("修改");
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searchBtn = new QPushButton("查询");
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refreshBtn = new QPushButton("刷新/清空查询");
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// 布局
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QVBoxLayout *rightLayout = new QVBoxLayout; // 垂直布局
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rightLayout->addWidget(new QLabel("姓名")); // index 0
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rightLayout->addWidget(nameEdit); // index 1
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rightLayout->addWidget(new QLabel("性别"));
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QVBoxLayout *rightLayout = new QVBoxLayout;
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rightLayout->addWidget(new QLabel("姓名:"));
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rightLayout->addWidget(nameEdit);
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rightLayout->addWidget(new QLabel("性别:"));
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rightLayout->addWidget(genderEdit);
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rightLayout->addWidget(new QLabel("年龄"));
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rightLayout->addWidget(new QLabel("年龄:"));
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rightLayout->addWidget(ageEdit);
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rightLayout->addWidget(new QLabel("学号"));
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rightLayout->addWidget(new QLabel("学号:"));
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rightLayout->addWidget(idEdit);
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rightLayout->addWidget(new QLabel("电话"));
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rightLayout->addWidget(new QLabel("电话:"));
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rightLayout->addWidget(phoneEdit);
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rightLayout->addWidget(addBtn);
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rightLayout->addWidget(updateBtn);
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rightLayout->addWidget(delBtn);
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rightLayout->addStretch(); // 设置可伸缩对齐
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QHBoxLayout *mainLayout = new QHBoxLayout(central); // 水平布局
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mainLayout->addWidget(tree, 1); // index 1
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mainLayout->addWidget(table, 3); // index 3
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mainLayout->addLayout(rightLayout, 2); // index 2
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// 指定信号 槽
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// 右键点击弹出增删改班级窗口
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connect(tree, &QTreeWidget::customContextMenuRequested, // 右键点击信号
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this, &MainWindow::showTreeMenu);
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// 左键点击班级名 刷新中间的学生信息
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connect(tree, &QTreeWidget::itemClicked, // 左键点击信号
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this, &MainWindow::onClassClicked);
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// 左键点击执行添加学生逻辑
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connect(addBtn, &QPushButton::clicked,
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this, &MainWindow::addStudent);
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// 左键点击执行删除学生逻辑
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connect(delBtn, &QPushButton::clicked,
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this, &MainWindow::deleteStudent);
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// 点击学生单元格 回显学生信息
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connect(table, &QTableWidget::cellClicked, // 单元格点击信号
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this, &MainWindow::tableItemClicked);
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// 确认窗口大小
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resize(900, 600);
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setMinimumSize(800, 500);
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rightLayout->addWidget(searchBtn);
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rightLayout->addWidget(refreshBtn);
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rightLayout->addStretch();
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// 分页控件
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btnPrev = new QPushButton("上一页");
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btnNext = new QPushButton("下一页");
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pageLabel = new QLabel("第 1/1 页");
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QHBoxLayout *pageLayout = new QHBoxLayout;
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pageLayout->addStretch();
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pageLayout->addWidget(btnPrev);
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pageLayout->addWidget(pageLabel);
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pageLayout->addWidget(btnNext);
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pageLayout->addStretch();
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// 布局组合
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QVBoxLayout *centerLayout = new QVBoxLayout;
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centerLayout->addWidget(table);
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centerLayout->addLayout(pageLayout);
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QHBoxLayout *mainLayout = new QHBoxLayout(central);
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mainLayout->addWidget(tree, 1);
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mainLayout->addLayout(centerLayout, 3);
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mainLayout->addLayout(rightLayout, 1);
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// 信号槽连接
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connect(actAddCls, &QAction::triggered, this, &MainWindow::addClass);
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connect(actDelCls, &QAction::triggered, this, &MainWindow::deleteClass);
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connect(actRenCls, &QAction::triggered, this, &MainWindow::renameClass);
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connect(actImport, &QAction::triggered, this, &MainWindow::importData);
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connect(actSave, &QAction::triggered, this, &MainWindow::saveData);
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connect(tree, &QTreeWidget::itemClicked, this, &MainWindow::onClassClicked);
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connect(addBtn, &QPushButton::clicked, this, &MainWindow::addStudent);
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connect(delBtn, &QPushButton::clicked, this, &MainWindow::deleteStudent);
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connect(updateBtn, &QPushButton::clicked, this, &MainWindow::updateStudent);
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connect(searchBtn, &QPushButton::clicked, this, &MainWindow::searchStudent);
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connect(refreshBtn, &QPushButton::clicked, this, &MainWindow::refreshAll);
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connect(table, &QTableWidget::cellClicked, this, &MainWindow::tableItemClicked);
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connect(btnPrev, &QPushButton::clicked, this, &MainWindow::prevPage);
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connect(btnNext, &QPushButton::clicked, this, &MainWindow::nextPage);
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resize(1000, 600);
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}
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void MainWindow::showTreeMenu(const QPoint &pos)
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// 业务逻辑实现
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QString MainWindow::currentClass() const
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{
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// 右键点击 后触发这个函数
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QMenu menu;
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QAction *add = menu.addAction("新建班级");
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QAction *del = menu.addAction("删除班级");
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QAction *ren = menu.addAction("重命名班级");
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// 显示右键菜单 并获取用户选择
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QAction *ret = menu.exec(tree->viewport()->mapToGlobal(pos));
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// 执行用户选择的操作
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if (ret == add)
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addClass();
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else if (ret == del)
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deleteClass();
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else if (ret == ren)
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renameClass();
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auto item = tree->currentItem();
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return item ? item->text(0) : "";
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}
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void MainWindow::addClass()
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void MainWindow::refreshTable()
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{
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// 弹出对话框 输入班级名称
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QString name = QInputDialog::getText(this, "新建班级", "班级名称");
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if (name.isEmpty())
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return;
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// 检查班级是否已存在
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if (classData.contains(name))
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table->setRowCount(0);
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int total = displayList.size();
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int maxPage = qMax(1, (total + pageSize - 1) / pageSize);
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if (currentPage > maxPage)
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currentPage = maxPage;
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pageLabel->setText(QString("第 %1/%2 页").arg(currentPage).arg(maxPage));
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int start = (currentPage - 1) * pageSize;
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int end = qMin(start + pageSize, total);
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for (int i = start; i < end; ++i)
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{
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QMessageBox::warning(this, "错误", "班级已存在,请重新输入");
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return;
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int r = table->rowCount();
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table->insertRow(r);
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table->setItem(r, 0, new QTableWidgetItem(displayList[i].name));
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table->setItem(r, 1, new QTableWidgetItem(displayList[i].gender));
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table->setItem(r, 2, new QTableWidgetItem(QString::number(displayList[i].age)));
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table->setItem(r, 3, new QTableWidgetItem(displayList[i].id));
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table->setItem(r, 4, new QTableWidgetItem(displayList[i].phone));
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}
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// 将新班级添加到数据结构和树控件中
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// 由于是新班级，初始化为空列表
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classData[name] = {};
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// 在树控件中添加新节点
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// 数据与UI同步更新
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tree->addTopLevelItem(new QTreeWidgetItem({name}));
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}
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void MainWindow::deleteClass()
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void MainWindow::onClassClicked(QTreeWidgetItem *item)
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{
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// 获取当前选中班级 // auto == QTreeWidgetItem*
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auto item = tree->currentItem();
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if (!item)
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return;
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QString name = item->text(0); // 获取选中项的班级名称
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// 弹出确认对话框
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if (QMessageBox::question(this, "确认", "确定删除班级？") == QMessageBox::Yes)
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{
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// 从数据结构和树控件中删除班级
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classData.remove(name);
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// 数据与UI同步更新
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|
delete item; // 避免内存泄漏
|
|
|
|
|
table->clearContents(); // 清理学生信息内容
|
|
|
|
|
table->setRowCount(0); // 清空表格行数
|
|
|
|
|
}
|
|
|
|
|
QMessageBox::information(this, "提示", "班级已删除");
|
|
|
|
|
displayList = classData[item->text(0)];
|
|
|
|
|
currentPage = 1;
|
|
|
|
|
refreshTable();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::renameClass()
|
|
|
|
|
void MainWindow::addStudent()
|
|
|
|
|
{
|
|
|
|
|
// 获取当前选中班级
|
|
|
|
|
auto item = tree->currentItem();
|
|
|
|
|
if (!item)
|
|
|
|
|
QString cls = currentClass();
|
|
|
|
|
if (cls.isEmpty())
|
|
|
|
|
return;
|
|
|
|
|
// 获取旧班级名称
|
|
|
|
|
QString oldName = item->text(0);
|
|
|
|
|
// 弹出对话框 输入新名称
|
|
|
|
|
QString newName = QInputDialog::getText(this, "重命名", "新名称");
|
|
|
|
|
// 检查新名称有效性
|
|
|
|
|
if (newName.isEmpty())
|
|
|
|
|
|
|
|
|
|
Student s{nameEdit->text(), genderEdit->text(), ageEdit->text().toInt(), idEdit->text(), phoneEdit->text()};
|
|
|
|
|
if (s.name.isEmpty() || s.id.isEmpty())
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "错误", "姓名和学号不能为空"); //
|
|
|
|
|
return;
|
|
|
|
|
if (classData.contains(newName))
|
|
|
|
|
QMessageBox::warning(this, "提示", "班级已存在");
|
|
|
|
|
// 更新数据结构和树控件
|
|
|
|
|
classData[newName] = classData.take(oldName); // 从数据结构中移除旧键值对,并返回旧名称关联的值,赋给新名称
|
|
|
|
|
item->setText(0, newName);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::onClassClicked(QTreeWidgetItem *item)
|
|
|
|
|
{
|
|
|
|
|
// 用户点击班级节点后触发此函数
|
|
|
|
|
Q_UNUSED(item) // 避免未使用参数警告
|
|
|
|
|
refreshTable(); // 刷新右侧学生表格内容
|
|
|
|
|
// 查重
|
|
|
|
|
for (const auto &st : classData[cls])
|
|
|
|
|
{
|
|
|
|
|
if (st.id == s.id)
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "错误", "学号重复");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
classData[cls].append(s);
|
|
|
|
|
saveClassToFile(cls); // 自动保存
|
|
|
|
|
|
|
|
|
|
// 刷新输入框内容
|
|
|
|
|
nameEdit->clear();
|
|
|
|
|
genderEdit->clear();
|
|
|
|
|
ageEdit->clear();
|
|
|
|
|
idEdit->clear();
|
|
|
|
|
phoneEdit->clear();
|
|
|
|
|
|
|
|
|
|
refreshAll();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
QString MainWindow::currentClass() const // 只读成员函数
|
|
|
|
|
void MainWindow::updateStudent()
|
|
|
|
|
{
|
|
|
|
|
// 获取当前选中班级名称 auto == QTreeWidgetItem*
|
|
|
|
|
auto item = tree->currentItem();
|
|
|
|
|
return item ? item->text(0) : "";
|
|
|
|
|
QString cls = currentClass();
|
|
|
|
|
int row = table->currentRow();
|
|
|
|
|
if (cls.isEmpty() || row < 0)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
int realIdx = (currentPage - 1) * pageSize + row;
|
|
|
|
|
Student &s = classData[cls][realIdx];
|
|
|
|
|
s.name = nameEdit->text();
|
|
|
|
|
s.gender = genderEdit->text();
|
|
|
|
|
s.age = ageEdit->text().toInt();
|
|
|
|
|
s.phone = phoneEdit->text();
|
|
|
|
|
|
|
|
|
|
saveClassToFile(cls);
|
|
|
|
|
refreshAll();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::refreshTable()
|
|
|
|
|
void MainWindow::deleteStudent()
|
|
|
|
|
{
|
|
|
|
|
QString cls = currentClass();
|
|
|
|
|
table->setRowCount(0); // 先清空表格内容
|
|
|
|
|
if (!classData.contains(cls))
|
|
|
|
|
return; // 班级不存在
|
|
|
|
|
int row = table->currentRow();
|
|
|
|
|
if (row < 0 || QMessageBox::question(this, "确认", "确定删除？") != QMessageBox::Yes)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
auto &list = classData[cls]; // 获取当前班级的学生列表引用
|
|
|
|
|
table->setRowCount(list.size()); // 设置表格行数为学生数量
|
|
|
|
|
for (int i = 0; i < list.size(); ++i)
|
|
|
|
|
{
|
|
|
|
|
// 遍历学生列表 填充表格内容
|
|
|
|
|
table->setItem(i, 0, new QTableWidgetItem(list[i].name));
|
|
|
|
|
table->setItem(i, 1, new QTableWidgetItem(list[i].gender));
|
|
|
|
|
table->setItem(i, 2, new QTableWidgetItem(QString::number(list[i].age)));
|
|
|
|
|
table->setItem(i, 3, new QTableWidgetItem(list[i].id));
|
|
|
|
|
table->setItem(i, 4, new QTableWidgetItem(list[i].phone));
|
|
|
|
|
}
|
|
|
|
|
int realIdx = (currentPage - 1) * pageSize + row;
|
|
|
|
|
classData[cls].removeAt(realIdx);
|
|
|
|
|
saveClassToFile(cls);
|
|
|
|
|
refreshAll();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::addStudent()
|
|
|
|
|
void MainWindow::searchStudent()
|
|
|
|
|
{
|
|
|
|
|
QString cls = currentClass();
|
|
|
|
|
if (cls.isEmpty())
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "提示", "请先在左侧选择一个班级再进行查询");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
Student s;
|
|
|
|
|
s.name = nameEdit->text();
|
|
|
|
|
s.gender = genderEdit->text();
|
|
|
|
|
s.id = idEdit->text();
|
|
|
|
|
s.phone = phoneEdit->text();
|
|
|
|
|
// 1. 获取所有输入框的关键字，并去掉首尾空格
|
|
|
|
|
QString nameKw = nameEdit->text().trimmed();
|
|
|
|
|
QString genderKw = genderEdit->text().trimmed();
|
|
|
|
|
QString ageKw = ageEdit->text().trimmed();
|
|
|
|
|
QString idKw = idEdit->text().trimmed();
|
|
|
|
|
QString phoneKw = phoneEdit->text().trimmed();
|
|
|
|
|
|
|
|
|
|
// 处理年龄：用toInt的第二个参数判断是否为有效数字
|
|
|
|
|
bool isAgeValid; // 检测是否转换成功
|
|
|
|
|
int age = ageEdit->text().toInt(&isAgeValid);
|
|
|
|
|
displayList.clear();
|
|
|
|
|
|
|
|
|
|
if (!isAgeValid || age <= 0 || age > 120) // 年龄有效条件：转换成功 + 年龄在合理范围
|
|
|
|
|
// 2. 遍历当前班级的所有学生
|
|
|
|
|
for (const auto &s : classData[cls])
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "错误", "年龄必须是1-120的整数");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
s.age = age; // 只有年龄有效，才赋值给结构体
|
|
|
|
|
// 初始假设该学生符合条件
|
|
|
|
|
bool isMatch = true;
|
|
|
|
|
|
|
|
|
|
// 3. 逐个字段进行条件校验（逻辑：如果输入框不为空，则必须匹配该条件）
|
|
|
|
|
|
|
|
|
|
// qDebug() << s.name << s.id << s.age << s.phone << s.gender;
|
|
|
|
|
if (s.name.isEmpty() || s.gender.isEmpty() || s.id.isEmpty() || s.phone.isEmpty())
|
|
|
|
|
// 校验姓名
|
|
|
|
|
if (!nameKw.isEmpty() && !s.name.contains(nameKw, Qt::CaseInsensitive))
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "错误", "信息不完整(姓名、性别、学号、电话不能为空)");
|
|
|
|
|
return;
|
|
|
|
|
isMatch = false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (auto &st : classData[cls])
|
|
|
|
|
// 校验性别
|
|
|
|
|
if (isMatch && !genderKw.isEmpty() && !s.gender.contains(genderKw, Qt::CaseInsensitive))
|
|
|
|
|
{
|
|
|
|
|
if (st.id == s.id)
|
|
|
|
|
isMatch = false;
|
|
|
|
|
}
|
|
|
|
|
// 校验年龄
|
|
|
|
|
if (isMatch && !ageKw.isEmpty() && !QString::number(s.age).contains(ageKw))
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "错误", "学号重复");
|
|
|
|
|
return;
|
|
|
|
|
isMatch = false;
|
|
|
|
|
}
|
|
|
|
|
// 校验学号
|
|
|
|
|
if (isMatch && !idKw.isEmpty() && !s.id.contains(idKw, Qt::CaseInsensitive))
|
|
|
|
|
{
|
|
|
|
|
isMatch = false;
|
|
|
|
|
}
|
|
|
|
|
// 校验电话
|
|
|
|
|
if (isMatch && !phoneKw.isEmpty() && !s.phone.contains(phoneKw, Qt::CaseInsensitive))
|
|
|
|
|
{
|
|
|
|
|
isMatch = false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
classData[cls].append(s); // 将新学生追加到当前班级的学生列表
|
|
|
|
|
refreshTable();
|
|
|
|
|
// 4. 如果所有非空条件都通过，则加入显示列表
|
|
|
|
|
if (isMatch)
|
|
|
|
|
{
|
|
|
|
|
displayList.append(s);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
currentPage = 1; // 重置到第一页
|
|
|
|
|
refreshTable(); // 刷新表格显示
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::refreshAll()
|
|
|
|
|
{
|
|
|
|
|
QString cls = currentClass();
|
|
|
|
|
if (!cls.isEmpty())
|
|
|
|
|
displayList = classData[cls]; // 恢复初始状态
|
|
|
|
|
currentPage = 1;
|
|
|
|
|
|
|
|
|
|
// 刷新输入框内容
|
|
|
|
|
nameEdit->clear();
|
|
|
|
|
@ -258,32 +344,246 @@ void MainWindow::addStudent()
|
|
|
|
|
ageEdit->clear();
|
|
|
|
|
idEdit->clear();
|
|
|
|
|
phoneEdit->clear();
|
|
|
|
|
|
|
|
|
|
refreshTable();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::deleteStudent()
|
|
|
|
|
// --- 文件与分页 ---
|
|
|
|
|
|
|
|
|
|
void MainWindow::saveClassToFile(const QString &className)
|
|
|
|
|
{
|
|
|
|
|
QString cls = currentClass(); // 拿到班级名称
|
|
|
|
|
int row = table->currentRow(); // 获取当前选中行
|
|
|
|
|
if (cls.isEmpty() || row < 0)
|
|
|
|
|
QFile file(className + ".txt"); // 按班级名保存
|
|
|
|
|
if (file.open(QIODevice::WriteOnly | QIODevice::Text))
|
|
|
|
|
{
|
|
|
|
|
QTextStream out(&file);
|
|
|
|
|
for (const auto &s : classData[className])
|
|
|
|
|
{
|
|
|
|
|
out << s.name << "," << s.gender << "," << s.age << "," << s.id << "," << s.phone << "\n";
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::saveData()
|
|
|
|
|
{
|
|
|
|
|
for (auto it = classData.begin(); it != classData.end(); ++it)
|
|
|
|
|
saveClassToFile(it.key());
|
|
|
|
|
QMessageBox::information(this, "提示", "所有班级已保存");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::importData()
|
|
|
|
|
{
|
|
|
|
|
// 1. 直接弹出文件选择框，不需要预先选中班级
|
|
|
|
|
QString path = QFileDialog::getOpenFileName(this, "导入班级文件", "", "文本文件 (*.txt);;所有文件 (*.*)");
|
|
|
|
|
if (path.isEmpty())
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
if (QMessageBox::question(this, "确认", "删除该学生？") == QMessageBox::Yes)
|
|
|
|
|
// 2. 提取文件名作为班级名
|
|
|
|
|
QFileInfo fileInfo(path);
|
|
|
|
|
QString className = fileInfo.baseName(); // 例如 "高三二班"
|
|
|
|
|
|
|
|
|
|
// 3. 检查班级是否已存在，不存在则新建
|
|
|
|
|
if (!classData.contains(className))
|
|
|
|
|
{
|
|
|
|
|
classData[cls].removeAt(row);
|
|
|
|
|
refreshTable();
|
|
|
|
|
classData[className] = QList<Student>();
|
|
|
|
|
QTreeWidgetItem *newItem = new QTreeWidgetItem({className});
|
|
|
|
|
tree->addTopLevelItem(newItem);
|
|
|
|
|
tree->setCurrentItem(newItem); // 自动选中这个新创建的班级
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
// 如果班级已存在，询问是追加还是清空
|
|
|
|
|
QMessageBox::StandardButton reply;
|
|
|
|
|
reply = QMessageBox::question(this, "班级已存在",
|
|
|
|
|
QString("班级 '%1' 已存在，是否追加数据？\n(选“否”将清空原数据并覆盖)").arg(className),
|
|
|
|
|
QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel);
|
|
|
|
|
|
|
|
|
|
if (reply == QMessageBox::Cancel)
|
|
|
|
|
return;
|
|
|
|
|
if (reply == QMessageBox::No)
|
|
|
|
|
{
|
|
|
|
|
classData[className].clear(); // 清空原数据实现“覆盖”
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 选中已有的班级节点
|
|
|
|
|
QList<QTreeWidgetItem *> items = tree->findItems(className, Qt::MatchExactly);
|
|
|
|
|
if (!items.isEmpty())
|
|
|
|
|
tree->setCurrentItem(items[0]);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 4. 读取文件内容
|
|
|
|
|
QFile file(path);
|
|
|
|
|
if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::critical(this, "错误", "无法打开文件");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
QTextStream in(&file);
|
|
|
|
|
int count = 0;
|
|
|
|
|
while (!in.atEnd())
|
|
|
|
|
{
|
|
|
|
|
QString line = in.readLine();
|
|
|
|
|
QStringList fields = line.split(",");
|
|
|
|
|
if (fields.size() >= 5)
|
|
|
|
|
{
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Student s;
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s.name = fields[0].trimmed();
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s.gender = fields[1].trimmed();
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s.age = fields[2].trimmed().toInt();
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s.id = fields[3].trimmed();
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s.phone = fields[4].trimmed();
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classData[className].append(s);
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count++;
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}
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}
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file.close();
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// 5. 更新显示
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displayList = classData[className];
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currentPage = 1;
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refreshTable();
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QMessageBox::information(this, "导入成功", QString("已成功创建/更新班级 '%1'，并导入 %2 条学生记录。").arg(className).arg(count));
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}
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void MainWindow::tableItemClicked(int row, int) // 点击学生信息进行回显
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void MainWindow::prevPage()
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{
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QString cls = currentClass();
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if (cls.isEmpty())
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return;
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auto s = classData[cls][row];
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if (currentPage > 1)
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{
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currentPage--;
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refreshTable();
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}
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}
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void MainWindow::nextPage()
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{
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if (currentPage * pageSize < displayList.size())
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{
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currentPage++;
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refreshTable();
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}
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}
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void MainWindow::tableItemClicked(int row, int)
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{
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int realIdx = (currentPage - 1) * pageSize + row;
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if (realIdx < displayList.size())
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{
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const auto &s = displayList[realIdx];
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nameEdit->setText(s.name);
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genderEdit->setText(s.gender);
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ageEdit->setText(QString::number(s.age));
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idEdit->setText(s.id);
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phoneEdit->setText(s.phone);
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}
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}
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// 班级管理槽函数（逻辑同前，移至菜单触发）
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void MainWindow::addClass()
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|
|
{
|
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while (true)
|
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|
|
{
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|
|
bool ok;
|
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|
|
// 弹出输入框
|
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|
|
QString name = QInputDialog::getText(this, "新建班级", "请输入班级名称:", QLineEdit::Normal, "", &ok);
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// 如果用户点击了“取消”或直接关闭窗口，则退出函数
|
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|
|
|
if (!ok)
|
|
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|
|
return;
|
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|
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|
|
name = name.trimmed(); // 去除首尾空格
|
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|
|
|
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|
|
|
// 逻辑判断 1：不能为空
|
|
|
|
|
if (name.isEmpty())
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "错误", "班级名称不能为空，请重新输入！");
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|
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|
|
continue; // 跳回循环开始，重新弹出输入框
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 逻辑判断 2：检查是否已存在
|
|
|
|
|
if (classData.contains(name))
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "错误", QString("班级“%1”已存在，请换一个名称！").arg(name));
|
|
|
|
|
continue; // 跳回循环开始，重新弹出输入框
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 校验通过：保存数据并更新界面
|
|
|
|
|
classData[name] = QList<Student>();
|
|
|
|
|
QTreeWidgetItem *newItem = new QTreeWidgetItem({name});
|
|
|
|
|
tree->addTopLevelItem(newItem);
|
|
|
|
|
tree->setCurrentItem(newItem); // 自动选中新创建的班级
|
|
|
|
|
|
|
|
|
|
break; // 成功创建后跳出循环
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::deleteClass()
|
|
|
|
|
{
|
|
|
|
|
auto item = tree->currentItem();
|
|
|
|
|
if (!item)
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "提示", "请先选择要删除的班级");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
if (item && QMessageBox::question(this, "确认", "删除班级及其信息？") == QMessageBox::Yes)
|
|
|
|
|
{
|
|
|
|
|
classData.remove(item->text(0));
|
|
|
|
|
delete item;
|
|
|
|
|
displayList.clear();
|
|
|
|
|
refreshTable();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void MainWindow::renameClass()
|
|
|
|
|
{
|
|
|
|
|
// 1. 获取当前选中的班级节点
|
|
|
|
|
auto item = tree->currentItem();
|
|
|
|
|
if (!item)
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "提示", "请先选择要重命名的班级");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
QString oldName = item->text(0);
|
|
|
|
|
|
|
|
|
|
// 2. 使用循环处理重复或为空的情况
|
|
|
|
|
while (true)
|
|
|
|
|
{
|
|
|
|
|
bool ok;
|
|
|
|
|
// 弹出输入框，默认显示旧名称
|
|
|
|
|
QString newName = QInputDialog::getText(this, "重命名班级", "请输入新的班级名称:",
|
|
|
|
|
QLineEdit::Normal, oldName, &ok);
|
|
|
|
|
|
|
|
|
|
// 如果用户点击了“取消”，则直接退出
|
|
|
|
|
if (!ok)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
newName = newName.trimmed(); // 去除多余空格
|
|
|
|
|
|
|
|
|
|
// 情况 A：名称没变，直接退出
|
|
|
|
|
if (newName == oldName)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
// 情况 B：名称为空
|
|
|
|
|
if (newName.isEmpty())
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "错误", "班级名称不能为空，请重新输入！");
|
|
|
|
|
continue; // 跳回循环开始，再次弹出对话框
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 情况 C：名称与现有其他班级重复
|
|
|
|
|
if (classData.contains(newName))
|
|
|
|
|
{
|
|
|
|
|
QMessageBox::warning(this, "错误", QString("班级“%1”已存在，请换一个名称！").arg(newName));
|
|
|
|
|
continue; // 跳回循环开始
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 3. 校验通过，更新底层数据结构 QMap
|
|
|
|
|
// 使用 take() 移除旧键并返回对应的数据列表，再赋值给新键
|
|
|
|
|
classData[newName] = classData.take(oldName);
|
|
|
|
|
|
|
|
|
|
// 4. 更新界面显示的名称
|
|
|
|
|
item->setText(0, newName);
|
|
|
|
|
|
|
|
|
|
break; // 完成重命名，跳出循环
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
wang-qin928
3 weeks ago