QFileInfo使用整理

1.效果图

2.源代码

fileinfo.h

#ifndef FILEINFO_H#define FILEINFO_H#include <QDialog>#include <QLabel>#include <QLineEdit>#include <QPushButton>#include <QCheckBox>class FileInfo : public QDialog{    Q_OBJECTpublic:    FileInfo(QWidget *parent = 0,Qt::WindowFlags f=0);    ~FileInfo();public slots:    void slotFile();//点击文件按钮时打开选择文件对话框    void slotGet();//获取文件详细信息private:    QLabel *fileNameLabel;    QLineEdit *fileNameLineEdit;    QPushButton *fileBtn;    QLabel *sizeLabel;    QLineEdit *sizeLineEdit;    QLabel *createTimeLabel;    QLineEdit *createTimeLineEdit;    QLabel *lastModifiedLabel;    QLineEdit *lastModifiedLineEdit;    QLabel *lastReadLabel;    QLineEdit *lastReadLineEdit;    QLabel *propertyLabel;    QCheckBox *isDirCheckBox;    QCheckBox *isFileCheckBox;    QCheckBox *isSymLinkCheckBox;    QCheckBox *isHiddenCheckBox;    QCheckBox *isReadableCheckBox;    QCheckBox *isWritableCheckBox;    QCheckBox *isExecutableCheckBox;    QPushButton *getBtn;};#endif // FILEINFO_H

fileinfo.cpp

#include "fileinfo.h"#include <QHBoxLayout>#include <QVBoxLayout>#include <QFileDialog>#include <QDateTime>FileInfo::FileInfo(QWidget *parent,Qt::WindowFlags f)    : QDialog(parent,f){    //界面布局    //begin    fileNameLabel = new QLabel(tr("文件名："));    fileNameLineEdit = new QLineEdit;    fileBtn = new QPushButton(tr("文件"));    sizeLabel = new QLabel(tr("大小："));    sizeLineEdit = new QLineEdit;    createTimeLabel = new QLabel(tr("创建时间："));    createTimeLineEdit = new QLineEdit;    lastModifiedLabel = new QLabel(tr("最后修改时间："));    lastModifiedLineEdit = new QLineEdit;    lastReadLabel = new QLabel(tr("最后访问时间："));    lastReadLineEdit = new QLineEdit;    propertyLabel = new QLabel(tr("属性："));    isDirCheckBox = new QCheckBox(tr("目录"));    isFileCheckBox = new QCheckBox(tr("文件"));    isSymLinkCheckBox = new QCheckBox(tr("符号连接"));    isHiddenCheckBox = new QCheckBox(tr("隐藏"));    isReadableCheckBox = new QCheckBox(tr("读"));    isWritableCheckBox = new QCheckBox(tr("写"));    isExecutableCheckBox = new QCheckBox(tr("执行"));    getBtn = new QPushButton(tr("获得文件信息"));    QGridLayout *gridLayout = new QGridLayout;    gridLayout->addWidget(fileNameLabel,0,0);    gridLayout->addWidget(fileNameLineEdit,0,1);    gridLayout->addWidget(fileBtn,0,2);    gridLayout->addWidget(sizeLabel,1,0);    gridLayout->addWidget(sizeLineEdit,1,1,1,2);    gridLayout->addWidget(createTimeLabel,2,0);    gridLayout->addWidget(createTimeLineEdit,2,1,1,2);    gridLayout->addWidget(lastModifiedLabel,3,0);    gridLayout->addWidget(lastModifiedLineEdit,3,1,1,2);    gridLayout->addWidget(lastReadLabel,4,0);    gridLayout->addWidget(lastReadLineEdit,4,1,1,2);    QHBoxLayout *layout2 = new QHBoxLayout;    layout2->addWidget(propertyLabel);    layout2->addStretch();    QHBoxLayout *layout3 = new QHBoxLayout;    layout3->addWidget(isDirCheckBox);    layout3->addWidget(isFileCheckBox);    layout3->addWidget(isSymLinkCheckBox);    layout3->addWidget(isHiddenCheckBox);    layout3->addWidget(isReadableCheckBox);    layout3->addWidget(isWritableCheckBox);    layout3->addWidget(isExecutableCheckBox);    QHBoxLayout *layout4 = new QHBoxLayout;    layout4->addWidget(getBtn);    QVBoxLayout *mainLayout = new QVBoxLayout(this);    mainLayout->addLayout(gridLayout);    mainLayout->addLayout(layout2);    mainLayout->addLayout(layout3);    mainLayout->addLayout(layout4);    //end    connect(fileBtn,SIGNAL(clicked()),this,SLOT(slotFile()));    connect(getBtn,SIGNAL(clicked()),this,SLOT(slotGet()));}FileInfo::~FileInfo(){}void FileInfo::slotFile(){    QString fileName = QFileDialog::getOpenFileName(this,"打开","/","files (*)");    fileNameLineEdit->setText(fileName);}void FileInfo::slotGet(){    QString file = fileNameLineEdit->text();    QFileInfo info(file);    qint64 size = info.size();    QDateTime created = info.created();    QDateTime lastModified = info.lastModified();    QDateTime lastRead = info.lastRead();    bool isDir = info.isDir();    bool isFile = info.isFile();    bool isSymLink = info.isSymLink();    bool isHidden = info.isHidden();    bool isReadable = info.isReadable();    bool isWritable = info.isWritable();    bool isExecutable = info.isExecutable();    sizeLineEdit->setText(QString::number(size));    createTimeLineEdit->setText(created.toString());    lastModifiedLineEdit->setText(lastModified.toString());    lastReadLineEdit->setText(lastRead.toString());    isDirCheckBox->setCheckState(isDir?Qt::Checked:Qt::Unchecked);    isFileCheckBox->setCheckState(isFile?Qt::Checked:Qt::Unchecked);    isSymLinkCheckBox->setCheckState(isSymLink?Qt::Checked:Qt::Unchecked);    isHiddenCheckBox->setCheckState(isHidden?Qt::Checked:Qt::Unchecked);    isReadableCheckBox->setCheckState(isReadable?Qt::Checked:Qt::Unchecked);    isWritableCheckBox->setCheckState(isWritable?Qt::Checked:Qt::Unchecked);    isExecutableCheckBox->setCheckState(isExecutable?Qt::Checked:Qt:: Unchecked);}