Qt之QFileInfo
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2024-02-19 17:58:46
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#include "dialog.h"
#include <QFileDialog>
#include <QDateTime>
Dialog::Dialog(QWidget *parent)
: QDialog(parent)
{
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);
connect(fileBtn,SIGNAL(clicked()),this,SLOT(slotFile()));
connect(getBtn,SIGNAL(clicked()),this,SLOT(slotGet()));
}
Dialog::~Dialog()
{
}
void Dialog::slotFile()
{
QString fileName = QFileDialog::getOpenFileName(this,"打开","/","files (*)");
fileNameLineEdit->setText(fileName);
}
void Dialog::slotGet()
{
QString file = fileNameLineEdit->text();
QFileInfo info(file);
qint64 size = info.size(); //获取大小
QDateTime created = info.created();//创建时间
QDateTime lastModified = info.lastModified();//最后修改时间
QDateTime lastRead = info.lastRead();//最后访问时间
bool isDir = info.isDir(); //是否是目录
bool isFile = info.isFile(); //是否是文件
bool isSymLink = info.isSymLink(); //符合链接
bool isHidden = info.isHidden(); //隐藏属性
bool isReadable = info.isReadable(); //读属性
bool isWritable = info.isWritable(); //写属性
bool isExecutable = info.isExecutable(); //可执行属性
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);
}
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