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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QtWidgets>
#include "window.h"
//! [17]
enum { absoluteFileNameRole = Qt::UserRole + 1 };
//! [17]
//! [18]
static inline QString fileNameOfItem(const QTableWidgetItem *item)
{
return item->data(absoluteFileNameRole).toString();
}
//! [18]
//! [14]
static inline void openFile(const QString &fileName)
{
QDesktopServices::openUrl(QUrl::fromLocalFile(fileName));
}
//! [14]
//! [0]
Window::Window(QWidget *parent)
: QWidget(parent)
{
setWindowTitle(tr("Find Files"));
QPushButton *browseButton = new QPushButton(tr("&Browse..."), this);
connect(browseButton, &QAbstractButton::clicked, this, &Window::browse);
findButton = new QPushButton(tr("&Find"), this);
connect(findButton, &QAbstractButton::clicked, this, &Window::find);
fileComboBox = createComboBox(tr("*"));
connect(fileComboBox->lineEdit(), &QLineEdit::returnPressed,
this, &Window::animateFindClick);
textComboBox = createComboBox();
connect(textComboBox->lineEdit(), &QLineEdit::returnPressed,
this, &Window::animateFindClick);
directoryComboBox = createComboBox(QDir::toNativeSeparators(QDir::currentPath()));
connect(directoryComboBox->lineEdit(), &QLineEdit::returnPressed,
this, &Window::animateFindClick);
filesFoundLabel = new QLabel;
createFilesTable();
QGridLayout *mainLayout = new QGridLayout(this);
mainLayout->addWidget(new QLabel(tr("Named:")), 0, 0);
mainLayout->addWidget(fileComboBox, 0, 1, 1, 2);
mainLayout->addWidget(new QLabel(tr("Containing text:")), 1, 0);
mainLayout->addWidget(textComboBox, 1, 1, 1, 2);
mainLayout->addWidget(new QLabel(tr("In directory:")), 2, 0);
mainLayout->addWidget(directoryComboBox, 2, 1);
mainLayout->addWidget(browseButton, 2, 2);
mainLayout->addWidget(filesTable, 3, 0, 1, 3);
mainLayout->addWidget(filesFoundLabel, 4, 0, 1, 2);
mainLayout->addWidget(findButton, 4, 2);
//! [0]
//! [1]
connect(new QShortcut(QKeySequence::Quit, this), &QShortcut::activated,
qApp, &QApplication::quit);
//! [1]
}
//! [2]
void Window::browse()
{
QString directory =
QDir::toNativeSeparators(QFileDialog::getExistingDirectory(this, tr("Find Files"), QDir::currentPath()));
if (!directory.isEmpty()) {
if (directoryComboBox->findText(directory) == -1)
directoryComboBox->addItem(directory);
directoryComboBox->setCurrentIndex(directoryComboBox->findText(directory));
}
}
//! [2]
static void updateComboBox(QComboBox *comboBox)
{
if (comboBox->findText(comboBox->currentText()) == -1)
comboBox->addItem(comboBox->currentText());
}
//! [3]
void Window::find()
{
filesTable->setRowCount(0);
QString fileName = fileComboBox->currentText();
QString text = textComboBox->currentText();
QString path = QDir::cleanPath(directoryComboBox->currentText());
currentDir = QDir(path);
//! [3]
updateComboBox(fileComboBox);
updateComboBox(textComboBox);
updateComboBox(directoryComboBox);
//! [4]
QStringList filter;
if (!fileName.isEmpty())
filter << fileName;
QDirIterator it(path, filter, QDir::AllEntries | QDir::NoSymLinks | QDir::NoDotAndDotDot, QDirIterator::Subdirectories);
QStringList files;
while (it.hasNext())
files << it.next();
if (!text.isEmpty())
files = findFiles(files, text);
files.sort();
showFiles(files);
}
//! [4]
void Window::animateFindClick()
{
findButton->animateClick();
}
//! [5]
QStringList Window::findFiles(const QStringList &files, const QString &text)
{
QProgressDialog progressDialog(this);
progressDialog.setCancelButtonText(tr("&Cancel"));
progressDialog.setRange(0, files.size());
progressDialog.setWindowTitle(tr("Find Files"));
//! [5] //! [6]
QMimeDatabase mimeDatabase;
QStringList foundFiles;
for (int i = 0; i < files.size(); ++i) {
progressDialog.setValue(i);
progressDialog.setLabelText(tr("Searching file number %1 of %n...", nullptr, files.size()).arg(i));
QCoreApplication::processEvents();
//! [6]
if (progressDialog.wasCanceled())
break;
//! [7]
const QString fileName = files.at(i);
const QMimeType mimeType = mimeDatabase.mimeTypeForFile(fileName);
if (mimeType.isValid() && !mimeType.inherits(QStringLiteral("text/plain"))) {
qWarning() << "Not searching binary file " << QDir::toNativeSeparators(fileName);
continue;
}
QFile file(fileName);
if (file.open(QIODevice::ReadOnly)) {
QString line;
QTextStream in(&file);
while (!in.atEnd()) {
if (progressDialog.wasCanceled())
break;
line = in.readLine();
if (line.contains(text, Qt::CaseInsensitive)) {
foundFiles << files[i];
break;
}
}
}
}
return foundFiles;
}
//! [7]
//! [8]
void Window::showFiles(const QStringList &paths)
{
for (const QString &filePath : paths) {
const QString toolTip = QDir::toNativeSeparators(filePath);
const QString relativePath = QDir::toNativeSeparators(currentDir.relativeFilePath(filePath));
const qint64 size = QFileInfo(filePath).size();
QTableWidgetItem *fileNameItem = new QTableWidgetItem(relativePath);
fileNameItem->setData(absoluteFileNameRole, QVariant(filePath));
fileNameItem->setToolTip(toolTip);
fileNameItem->setFlags(fileNameItem->flags() ^ Qt::ItemIsEditable);
QTableWidgetItem *sizeItem = new QTableWidgetItem(QLocale().formattedDataSize(size));
sizeItem->setData(absoluteFileNameRole, QVariant(filePath));
sizeItem->setToolTip(toolTip);
sizeItem->setTextAlignment(Qt::AlignRight | Qt::AlignVCenter);
sizeItem->setFlags(sizeItem->flags() ^ Qt::ItemIsEditable);
int row = filesTable->rowCount();
filesTable->insertRow(row);
filesTable->setItem(row, 0, fileNameItem);
filesTable->setItem(row, 1, sizeItem);
}
filesFoundLabel->setText(tr("%n file(s) found (Double click on a file to open it)", nullptr, paths.size()));
filesFoundLabel->setWordWrap(true);
}
//! [8]
//! [10]
QComboBox *Window::createComboBox(const QString &text)
{
QComboBox *comboBox = new QComboBox;
comboBox->setEditable(true);
comboBox->addItem(text);
comboBox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
return comboBox;
}
//! [10]
//! [11]
void Window::createFilesTable()
{
filesTable = new QTableWidget(0, 2);
filesTable->setSelectionBehavior(QAbstractItemView::SelectRows);
QStringList labels;
labels << tr("Filename") << tr("Size");
filesTable->setHorizontalHeaderLabels(labels);
filesTable->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch);
filesTable->verticalHeader()->hide();
filesTable->setShowGrid(false);
//! [15]
filesTable->setContextMenuPolicy(Qt::CustomContextMenu);
connect(filesTable, &QTableWidget::customContextMenuRequested,
this, &Window::contextMenu);
connect(filesTable, &QTableWidget::cellActivated,
this, &Window::openFileOfItem);
//! [15]
}
//! [11]
//! [12]
void Window::openFileOfItem(int row, int /* column */)
{
const QTableWidgetItem *item = filesTable->item(row, 0);
openFile(fileNameOfItem(item));
}
//! [12]
//! [16]
void Window::contextMenu(const QPoint &pos)
{
const QTableWidgetItem *item = filesTable->itemAt(pos);
if (!item)
return;
QMenu menu;
#ifndef QT_NO_CLIPBOARD
QAction *copyAction = menu.addAction("Copy Name");
#endif
QAction *openAction = menu.addAction("Open");
QAction *action = menu.exec(filesTable->mapToGlobal(pos));
if (!action)
return;
const QString fileName = fileNameOfItem(item);
if (action == openAction)
openFile(fileName);
#ifndef QT_NO_CLIPBOARD
else if (action == copyAction)
QGuiApplication::clipboard()->setText(QDir::toNativeSeparators(fileName));
#endif
}
//! [16]
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