完成文件读取

mainwindow.cpp

@@ -1,22 +1,99 @@
+#include <QFileDialog>
+#include <QMessageBox>
+#include <QDebug>
+#include <QCompleter>
+#include <QLabel>
 #include "mainwindow.h"
-
 #include "ui_mainwindow.h"
 
-#include <QCompleter>
-#include <QListView>
-#include <QStyledItemDelegate>
-#include <QLineEdit>
 
 MainWindow::MainWindow(QWidget *parent)
-    : QMainWindow(parent)
-    , ui(new Ui::MainWindow)
-{
+        : QMainWindow(parent), ui(new Ui::MainWindow), readThread(new ReadThread) {
     ui->setupUi(this);
+    // 创建版本号标签并添加到状态栏的右端
+    QLabel *m_versionLabel = new QLabel(tr("v1.2.0"), this);
+    ui->statusbar->addPermanentWidget(m_versionLabel);
+    //隐藏进度条
+    ui->progressBar->close();
+
+    /*信号和槽*/
+    //readThread
+    connect(readThread, &ReadThread::clearCombo, this, &MainWindow::clearCombo);
+    connect(readThread, &ReadThread::showStatusbar, this, &MainWindow::showStatusbar);
+    connect(readThread, &ReadThread::setProgressBar, this, &MainWindow::setProgressBar);
+    connect(readThread, &ReadThread::setBeginTime, this, &MainWindow::setBeginTime);
+    connect(readThread, &ReadThread::setEndTime, this, &MainWindow::setEndTime);
+    connect(readThread, &ReadThread::addCombo, this, &MainWindow::addCombo);
+    connect(readThread, &ReadThread::closeProg, this, &MainWindow::closeProg);
 }
 
-MainWindow::~MainWindow()
-{
+MainWindow::~MainWindow() {
     delete ui;
 }
 
 
+void MainWindow::on_openFileBtn_clicked() {
+    //选择文件，并获取文件名
+    QString fileName = QFileDialog::getOpenFileName();
+    //打开文件
+    file.setFileName(fileName);
+    //打开失败
+    if (!file.open(QIODevice::ReadOnly)) {
+        QMessageBox::warning(this, "错误", "文件打开失败");
+        ui->statusbar->clearMessage();
+        clearCombo();
+        return;
+    }
+    //获取文件大小
+    qint64 fileSize = file.size();
+    //设置进度条
+    ui->progressBar->setMaximum((int) fileSize);
+    ui->progressBar->setValue(0);
+    ui->progressBar->show();
+    //执行读取
+    readThread->start();
+}
+
+
+void MainWindow::on_timeCustomBtn_clicked() {
+    ui->progressBar->close();
+}
+
+
+void MainWindow::on_dataCustomBtn_clicked() {
+
+}
+
+void MainWindow::clearCombo() {
+    ui->comboBox->clear();
+}
+
+void MainWindow::showStatusbar(const QString &str) {
+    ui->statusbar->showMessage(str);
+}
+
+void MainWindow::setProgressBar(int bytesRead) {
+    ui->progressBar->setValue(bytesRead);
+}
+
+void MainWindow::setBeginTime(const QDateTime &beginTime) {
+    ui->beginTimeEdit->setDateTime(beginTime);
+}
+
+void MainWindow::setEndTime(const QDateTime &endTime) {
+    ui->endTimeEdit->setDateTime(endTime);
+}
+
+void MainWindow::addCombo(const QStringList &names) {
+    //设置下拉框数据
+    ui->comboBox->addItems(names);
+    //根据输入匹配下拉框
+    completer = new QCompleter(names);
+    completer->setFilterMode(Qt::MatchContains);
+    ui->comboBox->setCompleter(completer);
+}
+
+void MainWindow::closeProg() {
+    ui->progressBar->close();
+}
+