QT获取文件夹及文件行数

最新推荐文章于 2023-12-12 23:00:42 发布

hss2799

最新推荐文章于 2023-12-12 23:00:42 发布

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分类专栏： Qt

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#include "mainwindow.h"
#include "ui_mainwindow.h"


//获取TableWidgetItem
QTableWidgetItem* getTableWidgetItem(QTableWidget*table,int row ,int column,int alignment)
{
    QTableWidgetItem* pItem =  table->item(row,column); //找到单元格
    if(pItem == 0)
    {
        pItem = new QTableWidgetItem();
        pItem->setTextAlignment(alignment);
        pItem->setFont(table->font());
        table->setItem(row, column, pItem);
    }
    return  pItem;
}
//处理TableWidgetItem
QTableWidgetItem* setTableWidgetItem(QTableWidget*table,int row ,int column,QString text,int alignment=Qt::AlignCenter)
{
    QTableWidgetItem* pItem = getTableWidgetItem(table,row,column,alignment);
    if(pItem != 0)
    {
        pItem->setText(text);
        pItem->setTextAlignment(alignment);
    }
    return   pItem;
}

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    ui->tableWidget->setColumnCount(2);
    ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
    QStringList hear;
    hear <<"名字"<< "行数";
}

MainWindow::~MainWindow()
{
    delete ui;
}
int getDirLineCount(QString dirStr,QList<QStringList>& contextList)
{
    int lineCount = 0;
    QDir dir = QDir(dirStr);
    dir.setFilter(QDir::Dirs | QDir::Files);
    dir.setSorting(QDir::DirsFirst);
    QFileInfoList list = dir.entryInfoList();
    for(int i =0; i < list.count();i++)
    {
        QFileInfo fileInfo = list.at(i);
        if (fileInfo.fileName() == QString(".") || fileInfo.fileName() == QString(".."))
        {
            continue;
        }
        if (fileInfo.isFile())
        {
            //if(fileInfo.suffix() == "cpp" || fileInfo.suffix() == "h")
            {
                QStringList infoList;
                int eNum = 0;
                QString path = fileInfo.absoluteFilePath();
                QFile file(path);
                if (file.open(QIODevice::ReadOnly))
                {
                    while (!file.atEnd())
                    {
                        QByteArray tmp = file.readLine();
                        //if(!tmp.simplified().isEmpty())
                        {
                            eNum++;
                        }
                    }
                    file.close();
                }
                lineCount += eNum;
                infoList << fileInfo.fileName() << QString::number(eNum);
                contextList.append(infoList);
            }
        }
        if (fileInfo.isDir())
        {
            lineCount += getDirLineCount(fileInfo.absoluteFilePath(), contextList);
        }
    }
    QStringList infoList;
    infoList << dir.dirName() << QString::number(lineCount);
    contextList.append(infoList);
    return  lineCount;
}
//打开
void MainWindow::on_pushButton_clicked()
{
    QString dirStr = QFileDialog::getExistingDirectory(this,"请选择计算路径...","./");
    if(dirStr.isEmpty())
    {
        return;
    }
    ui->lineEdit->setText(dirStr);
    QList<QStringList> contextList;
    getDirLineCount(dirStr, contextList);

    ui->tableWidget->setRowCount(contextList.count());
    for(int i =0 ; i < contextList.count(); i++)
    {
        setTableWidgetItem(ui->tableWidget, i, 0, contextList[i][0]);
        setTableWidgetItem(ui->tableWidget, i, 1, contextList[i][1]);
    }
}

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QFileDialog>
#include <QTableWidgetItem>

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:
    void on_pushButton_clicked();

private:
    Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H