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-rw-r--r--examples/widgets/dialogs/findfiles/window.cpp139
-rw-r--r--examples/widgets/dialogs/findfiles/window.h6
-rw-r--r--examples/widgets/doc/src/findfiles.qdoc38
3 files changed, 135 insertions, 48 deletions
diff --git a/examples/widgets/dialogs/findfiles/window.cpp b/examples/widgets/dialogs/findfiles/window.cpp
index 780c398ad5..ce53dd8c83 100644
--- a/examples/widgets/dialogs/findfiles/window.cpp
+++ b/examples/widgets/dialogs/findfiles/window.cpp
@@ -42,51 +42,72 @@
#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)
{
- browseButton = new QPushButton(tr("&Browse..."), this);
+ 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();
- directoryComboBox = createComboBox(QDir::currentPath());
+ connect(textComboBox->lineEdit(), &QLineEdit::returnPressed,
+ this, &Window::animateFindClick);
+ directoryComboBox = createComboBox(QDir::toNativeSeparators(QDir::currentPath()));
+ connect(directoryComboBox->lineEdit(), &QLineEdit::returnPressed,
+ this, &Window::animateFindClick);
- fileLabel = new QLabel(tr("Named:"));
- textLabel = new QLabel(tr("Containing text:"));
- directoryLabel = new QLabel(tr("In directory:"));
filesFoundLabel = new QLabel;
createFilesTable();
//! [0]
//! [1]
- QGridLayout *mainLayout = new QGridLayout;
- mainLayout->addWidget(fileLabel, 0, 0);
+ QGridLayout *mainLayout = new QGridLayout(this);
+ mainLayout->addWidget(new QLabel(tr("Named:")), 0, 0);
mainLayout->addWidget(fileComboBox, 0, 1, 1, 2);
- mainLayout->addWidget(textLabel, 1, 0);
+ mainLayout->addWidget(new QLabel(tr("Containing text:")), 1, 0);
mainLayout->addWidget(textComboBox, 1, 1, 1, 2);
- mainLayout->addWidget(directoryLabel, 2, 0);
+ 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);
- setLayout(mainLayout);
setWindowTitle(tr("Find Files"));
- resize(700, 300);
+ const QRect screenGeometry = QApplication::desktop()->screenGeometry(this);
+ resize(screenGeometry.width() / 2, screenGeometry.height() / 3);
}
//! [1]
//! [2]
void Window::browse()
{
- QString directory = QFileDialog::getExistingDirectory(this,
- tr("Find Files"), QDir::currentPath());
+ QString directory =
+ QDir::toNativeSeparators(QFileDialog::getExistingDirectory(this, tr("Find Files"), QDir::currentPath()));
if (!directory.isEmpty()) {
if (directoryComboBox->findText(directory) == -1)
@@ -102,14 +123,28 @@ static void updateComboBox(QComboBox *comboBox)
comboBox->addItem(comboBox->currentText());
}
+//! [13]
+
+static void findRecursion(const QString &path, const QString &pattern, QStringList *result)
+{
+ QDir currentDir(path);
+ const QString prefix = path + QLatin1Char('/');
+ foreach (const QString &match, currentDir.entryList(QStringList(pattern), QDir::Files | QDir::NoSymLinks))
+ result->append(prefix + match);
+ foreach (const QString &dir, currentDir.entryList(QDir::Dirs | QDir::NoSymLinks | QDir::NoDotAndDotDot))
+ findRecursion(prefix + dir, pattern, result);
+}
+
+//! [13]
//! [3]
+
void Window::find()
{
filesTable->setRowCount(0);
QString fileName = fileComboBox->currentText();
QString text = textComboBox->currentText();
- QString path = directoryComboBox->currentText();
+ QString path = QDir::cleanPath(directoryComboBox->currentText());
//! [3]
updateComboBox(fileComboBox);
@@ -117,19 +152,21 @@ void Window::find()
updateComboBox(directoryComboBox);
//! [4]
+
currentDir = QDir(path);
QStringList files;
- if (fileName.isEmpty())
- fileName = "*";
- files = currentDir.entryList(QStringList(fileName),
- QDir::Files | QDir::NoSymLinks);
-
+ findRecursion(path, fileName.isEmpty() ? QStringLiteral("*") : fileName, &files);
if (!text.isEmpty())
files = findFiles(files, text);
showFiles(files);
}
//! [4]
+void Window::animateFindClick()
+{
+ findButton->animateClick();
+}
+
//! [5]
QStringList Window::findFiles(const QStringList &files, const QString &text)
{
@@ -139,21 +176,26 @@ QStringList Window::findFiles(const QStringList &files, const QString &text)
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 %2...")
- .arg(i).arg(files.size()));
- qApp->processEvents();
+ progressDialog.setLabelText(tr("Searching file number %1 of %n...", 0, files.size()).arg(i));
+ QCoreApplication::processEvents();
//! [6]
if (progressDialog.wasCanceled())
break;
//! [7]
- QFile file(currentDir.absoluteFilePath(files[i]));
-
+ 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);
@@ -161,7 +203,7 @@ QStringList Window::findFiles(const QStringList &files, const QString &text)
if (progressDialog.wasCanceled())
break;
line = in.readLine();
- if (line.contains(text)) {
+ if (line.contains(text, Qt::CaseInsensitive)) {
foundFiles << files[i];
break;
}
@@ -176,13 +218,18 @@ QStringList Window::findFiles(const QStringList &files, const QString &text)
void Window::showFiles(const QStringList &files)
{
for (int i = 0; i < files.size(); ++i) {
- QFile file(currentDir.absoluteFilePath(files[i]));
- qint64 size = QFileInfo(file).size();
-
- QTableWidgetItem *fileNameItem = new QTableWidgetItem(files[i]);
+ const QString &fileName = files.at(i);
+ const QString toolTip = QDir::toNativeSeparators(fileName);
+ const QString relativePath = QDir::toNativeSeparators(currentDir.relativeFilePath(fileName));
+ const qint64 size = QFileInfo(fileName).size();
+ QTableWidgetItem *fileNameItem = new QTableWidgetItem(relativePath);
+ fileNameItem->setData(absoluteFileNameRole, QVariant(fileName));
+ fileNameItem->setToolTip(toolTip);
fileNameItem->setFlags(fileNameItem->flags() ^ Qt::ItemIsEditable);
QTableWidgetItem *sizeItem = new QTableWidgetItem(tr("%1 KB")
.arg(int((size + 1023) / 1024)));
+ sizeItem->setData(absoluteFileNameRole, QVariant(fileName));
+ sizeItem->setToolTip(toolTip);
sizeItem->setTextAlignment(Qt::AlignRight | Qt::AlignVCenter);
sizeItem->setFlags(sizeItem->flags() ^ Qt::ItemIsEditable);
@@ -191,8 +238,7 @@ void Window::showFiles(const QStringList &files)
filesTable->setItem(row, 0, fileNameItem);
filesTable->setItem(row, 1, sizeItem);
}
- filesFoundLabel->setText(tr("%1 file(s) found").arg(files.size()) +
- (" (Double click on a file to open it)"));
+ filesFoundLabel->setText(tr("%n file(s) found (Double click on a file to open it)", 0, files.size()));
filesFoundLabel->setWordWrap(true);
}
//! [8]
@@ -220,20 +266,43 @@ void Window::createFilesTable()
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 */)
{
- QTableWidgetItem *item = filesTable->item(row, 0);
-
- QDesktopServices::openUrl(QUrl::fromLocalFile(currentDir.absoluteFilePath(item->text())));
+ 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;
+ QAction *copyAction = menu.addAction("Copy Name");
+ QAction *openAction = menu.addAction("Open");
+ QAction *action = menu.exec(filesTable->mapToGlobal(pos));
+ if (!action)
+ return;
+ const QString fileName = fileNameOfItem(item);
+ if (action == copyAction)
+ QGuiApplication::clipboard()->setText(QDir::toNativeSeparators(fileName));
+ else if (action == openAction)
+ openFile(fileName);
+}
+//! [16]
diff --git a/examples/widgets/dialogs/findfiles/window.h b/examples/widgets/dialogs/findfiles/window.h
index 89dd87b83b..119c0fa100 100644
--- a/examples/widgets/dialogs/findfiles/window.h
+++ b/examples/widgets/dialogs/findfiles/window.h
@@ -63,7 +63,9 @@ public:
private slots:
void browse();
void find();
+ void animateFindClick();
void openFileOfItem(int row, int column);
+ void contextMenu(const QPoint &pos);
private:
QStringList findFiles(const QStringList &files, const QString &text);
@@ -74,11 +76,7 @@ private:
QComboBox *fileComboBox;
QComboBox *textComboBox;
QComboBox *directoryComboBox;
- QLabel *fileLabel;
- QLabel *textLabel;
- QLabel *directoryLabel;
QLabel *filesFoundLabel;
- QPushButton *browseButton;
QPushButton *findButton;
QTableWidget *filesTable;
diff --git a/examples/widgets/doc/src/findfiles.qdoc b/examples/widgets/doc/src/findfiles.qdoc
index dd06ed8bb4..df2ef40768 100644
--- a/examples/widgets/doc/src/findfiles.qdoc
+++ b/examples/widgets/doc/src/findfiles.qdoc
@@ -120,10 +120,12 @@
\snippet dialogs/findfiles/window.cpp 4
We use the directory's path to create a QDir; the QDir class
- provides access to directory structures and their contents. We
- create a list of the files (contained in the newly created QDir)
- that match the specified file name. If the file name is empty
- the list will contain all the files in the directory.
+ provides access to directory structures and their contents.
+
+ \snippet dialogs/findfiles/window.cpp 13
+
+ We recursively create a list of the files (contained in the newl
+ created QDir) that match the specified file name.
Then we search through all the files in the list, using the private
\c findFiles() function, eliminating the ones that don't contain
@@ -173,9 +175,7 @@
\snippet dialogs/findfiles/window.cpp 7
- After updating the QProgressDialog, we create a QFile using the
- QDir::absoluteFilePath() function which returns the absolute path
- name of a file in the directory. We open the file in read-only
+ After updating the QProgressDialog, we open the file in read-only
mode, and read one line at a time using QTextStream.
The QTextStream class provides a convenient interface for reading
@@ -194,9 +194,18 @@
Both the \c findFiles() and \c showFiles() functions are called from
the \c find() slot. In the \c showFiles() function we run through
- the provided list of file names, adding each file name to the
+ the provided list of file names, adding each relative file name to the
first column in the table widget and retrieving the file's size using
- QFile and QFileInfo for the second column.
+ QFileInfo for the second column. For later use, we set
+ the absolute path as a data on the QTableWidget using the
+ the role absoluteFileNameRole defined to be Qt::UserRole + 1.
+
+ \snippet dialogs/findfiles/window.cpp 17
+
+ This allows for retrieving the name of an item using a
+ convenience function:
+
+ \snippet dialogs/findfiles/window.cpp 18
We also update the total number of files found.
@@ -236,8 +245,19 @@
\snippet dialogs/findfiles/window.cpp 12
+ \snippet dialogs/findfiles/window.cpp 14
+
The \c openFileOfItem() slot is invoked when the user double
clicks on a cell in the table. The QDesktopServices::openUrl()
knows how to open a file given the file name.
+
+ \snippet dialogs/findfiles/window.cpp 15
+ \snippet dialogs/findfiles/window.cpp 16
+
+ We set the context menu policy to of the table view to Qt::CustomContextMenu
+ and connect a slot contextMenu() to its signal
+ customContextMenuRequested(). We retrieve the absolute file name
+ from the data of the QTableWidgetItem and populate the context menu
+ with actions offering to copy the file name and to open the file.
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 03:39:07 +0000