QT编写文件系统浏览器

#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); setWindowTitle(tr("FileSystemBrowers")); m_pMainSplitter = new QZZSplitter(Qt::Horizontal); m_pDicTree = new QTreeWidget(m_pMainSplitter); m_pRightSplitter = new QZZSplitter(Qt::Vertical, m_pMainSplitter); m_pDicTable = new QTableWidget(m_pRightSplitter); m_pFileInfo = new QLabel(m_pRightSplitter); m_pFileInfo->setText("我是文件信息窗口"); m_pMainSplitter->setStretchFactor(1, 1); m_pMainLayout = new QHBoxLayout(); m_pMainLayout->addWidget(m_pMainSplitter); InitDicTree(); InitDicTable(); SignalSlotInit(); this->centralWidget()->setLayout(m_pMainLayout); //在MainWindow 窗口中需要调用这样调用来设置 } void MainWindow::SignalSlotInit() { connect(m_pDicTree, SIGNAL(itemDoubleClicked(QTreeWidgetItem *, int )), this, SLOT(DirTreeDBClicked(QTreeWidgetItem *, int ))); connect(m_pDicTree, SIGNAL(itemClicked(QTreeWidgetItem *, int )), this, SLOT(DirTreeClicked(QTreeWidgetItem *, int ))); connect(m_pDicTable, SIGNAL(itemClicked(QTableWidgetItem *)), this, SLOT(DicTableClicked(QTableWidgetItem *))); } void MainWindow::DirTreeClicked(QTreeWidgetItem *item, int column) { QVariant var= item->data(column, Qt::UserRole); DicTreeData dtd = var.value<DicTreeData>(); if(!dtd.isClicked) { dtd.isClicked = true; var=QVariant::fromValue(dtd); item->setData(0, Qt::UserRole, var); //qDebug()<<dtd.strPath<<endl; AddDicTreeChild(item, column); //遍历目录 } if(!dtd.isRoot) { BrowFileOfDIC(item, column); //遍历文件 } if(!item->isExpanded()) { item->setExpanded(true); } else { item->setExpanded(false); } } void MainWindow::DirTreeDBClicked(QTreeWidgetItem *item, int column) { } void MainWindow::DicTableClicked(QTableWidgetItem *item) { QList<QTableWidgetItem*> items = m_pDicTable->selectedItems(); QString strName = items.at(0)->text(); strName = m_strPrePath + strName; m_pFileInfo->setText(strName); //qDebug()<<m_strPrePath<<strName; } MainWindow::~MainWindow() { delete ui; } void MainWindow::InitDicTree() { m_pDicTree->clear(); m_pDicTree->setHeaderHidden(true); QFileIconProvider fileIconProvider; DicTreeData dtd; QVariant vdtd; dtd.isClicked = true; dtd.isRoot = true; vdtd=QVariant::fromValue(dtd); QTreeWidgetItem *pRootItem = new QTreeWidgetItem(m_pDicTree); QString strValue= tr("计算机"); pRootItem->setText(0, strValue); pRootItem->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable); pRootItem->setIcon(0,fileIconProvider.icon(QFileIconProvider::Computer)); pRootItem->setData(0, Qt::UserRole, vdtd); pRootItem->setChildIndicatorPolicy(QTreeWidgetItem::ShowIndicator); QTreeWidgetItem *pItem = NULL; dtd.isClicked = false; dtd.isRoot = false; foreach(QFileInfo fileInfo, m_qLogicDir.drives()) { pItem =new QTreeWidgetItem(pRootItem); dtd.strPath = fileInfo.absoluteFilePath(); vdtd=QVariant::fromValue(dtd); pItem->setText(0, dtd.strPath.replace(2,1,'\\')); pItem->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable); pItem->setData(0, Qt::UserRole, vdtd); pItem->setIcon(0, fileIconProvider.icon(QFileIconProvider::Drive)); pItem->setChildIndicatorPolicy(QTreeWidgetItem::ShowIndicator); //显示左边三角形 } } void MainWindow::InitDicTable() { m_strPrePath = ""; QTableWidgetItem *pItem = NULL; QStringList headerList; headerList<<"文件名"<<"创建时间"<<"最后修改时间"; m_pDicTable->setColumnCount(headerList.count()); for (int i = 0; i < m_pDicTable->columnCount() ; i++) { pItem = new QTableWidgetItem(headerList.at(i)); m_pDicTable->setHorizontalHeaderItem(i, pItem); } //设置列宽自适应 m_pDicTable->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch); m_pDicTable->horizontalHeader()->setSectionResizeMode(0, QHeaderView::ResizeToContents); m_pDicTable->setEditTriggers(QAbstractItemView::NoEditTriggers); m_pDicTable->setSelectionBehavior(QAbstractItemView::SelectRows); m_pDicTable->setAlternatingRowColors(true); m_pDicTable->setRowCount(0); } void MainWindow::AddDicTreeChild(QTreeWidgetItem *item, int column) { QTreeWidgetItem *PRoot = item; QFileIconProvider fileIconProvider; QTreeWidgetItem *pItem = NULL; DicTreeData dtdSubDic; QVariant vdtd; QVariant var= item->data(column, Qt::UserRole); DicTreeData dtd = var.value<DicTreeData>(); QString strPath = dtd.strPath; if(dtd.strPath.right(1) != '/') { strPath = strPath +'/'; } QDir tmpDir(strPath); DicFileData dfd; foreach(QFileInfo fileInfo, tmpDir.entryInfoList()) { if(fileInfo.isDir() && fileInfo.fileName().compare(".") && fileInfo.fileName().compare("..")) //目录添加到目录树上 { pItem =new QTreeWidgetItem(PRoot); dtdSubDic.strPath = fileInfo.absoluteFilePath(); vdtd=QVariant::fromValue(dtdSubDic); pItem->setText(0, fileInfo.fileName()); pItem->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable); pItem->setData(0, Qt::UserRole, vdtd); pItem->setIcon(0, fileIconProvider.icon(QFileIconProvider::Folder)); pItem->setChildIndicatorPolicy(QTreeWidgetItem::ShowIndicator);//显示左边三角形 //qDebug()<<fileInfo.fileName()<<endl; } } } void MainWindow::BrowFileOfDIC(QTreeWidgetItem *item, int column) { DicTreeData dtdSubDic; QVariant vdtd; QVariant var= item->data(column, Qt::UserRole); DicTreeData dtd = var.value<DicTreeData>(); QString strPath = dtd.strPath; if(dtd.strPath.right(1) != '/') { strPath = strPath +'/'; } if(m_strPrePath.compare(strPath)) { m_strPrePath = strPath; QDir tmpDir(strPath); DicFileData dfd; RemoveAllRow(); foreach(QFileInfo fileInfo, tmpDir.entryInfoList()) { if(fileInfo.isFile())//文件添加到右边列表中 { //文件添加到右边list控件中 dfd.strName = fileInfo.fileName(); dfd.strTime = fileInfo.birthTime().toString("yyyy-MM-dd hh:mm:ss"); dfd.strLastModify = fileInfo.lastModified().toString("yyyy-MM-dd hh:mm:ss"); AddFileList(dfd); } } } } void MainWindow::AddFileList(DicFileData dfd) { //m_pDicTable->setEditTriggers(QAbstractItemView::NoEditTriggers); int iCurRow = m_pDicTable->rowCount(); m_pDicTable->insertRow(iCurRow); m_pDicTable->setItem(iCurRow, 0, new QTableWidgetItem(dfd.strName)); m_pDicTable->setItem(iCurRow, 1, new QTableWidgetItem(dfd.strTime)); m_pDicTable->setItem(iCurRow, 2, new QTableWidgetItem(dfd.strLastModify)); } void MainWindow::RemoveAllRow() { int iRowCount = m_pDicTable->rowCount(); for (int i = 0; i <= iRowCount ;i++) { m_pDicTable->removeRow(i); } m_pDicTable->setRowCount(0); }