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<pre> /****************************************************************************
**
** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
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** This file is part of the example classes of the Qt Toolkit.
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#include <QtGui>
#include "findfiledialog.h"
FindFileDialog::FindFileDialog(QTextEdit *editor, QAssistantClient *assistant,
QWidget *parent)
: QDialog(parent)
{
currentAssistantClient = assistant;
currentEditor = editor;
createButtons();
createComboBoxes();
createFilesTree();
createLabels();
createLayout();
directoryComboBox->addItem(QDir::toNativeSeparators(QDir::currentPath()));
fileNameComboBox->addItem("*");
findFiles();
setWindowTitle(tr("Find File"));
}
void FindFileDialog::browse()
{
QString currentDirectory = directoryComboBox->currentText();
QString newDirectory = QFileDialog::getExistingDirectory(this,
tr("Select Directory"), currentDirectory);
if (!newDirectory.isEmpty()) {
directoryComboBox->addItem(QDir::toNativeSeparators(newDirectory));
directoryComboBox->setCurrentIndex(directoryComboBox->count() - 1);
update();
}
}
void FindFileDialog::help()
{
currentAssistantClient->showPage(QLibraryInfo::location(QLibraryInfo::ExamplesPath) +
QDir::separator() + "assistant/simpletextviewer/documentation/filedialog.html");
}
void FindFileDialog::openFile(QTreeWidgetItem *item)
{
if (!item) {
item = foundFilesTree->currentItem();
if (!item)
return;
}
QString fileName = item->text(0);
QString path = directoryComboBox->currentText() + QDir::separator();
QFile file(path + fileName);
if (file.open(QIODevice::ReadOnly)) {
QString data(file.readAll());
if (fileName.endsWith(".html"))
currentEditor->setHtml(data);
else
currentEditor->setPlainText(data);
}
close();
}
void FindFileDialog::update()
{
findFiles();
buttonBox->button(QDialogButtonBox::Open)->setEnabled(
foundFilesTree->topLevelItemCount() > 0);
}
void FindFileDialog::findFiles()
{
QRegExp filePattern(fileNameComboBox->currentText() + "*");
filePattern.setPatternSyntax(QRegExp::Wildcard);
QDir directory(directoryComboBox->currentText());
QStringList allFiles = directory.entryList(QDir::Files | QDir::NoSymLinks);
QStringList matchingFiles;
foreach (QString file, allFiles) {
if (filePattern.exactMatch(file))
matchingFiles << file;
}
showFiles(matchingFiles);
}
void FindFileDialog::showFiles(const QStringList &files)
{
foundFilesTree->clear();
for (int i = 0; i < files.count(); ++i) {
QTreeWidgetItem *item = new QTreeWidgetItem(foundFilesTree);
item->setText(0, files[i]);
}
if (files.count() > 0)
foundFilesTree->setCurrentItem(foundFilesTree->topLevelItem(0));
}
void FindFileDialog::createButtons()
{
browseButton = new QToolButton;
browseButton->setText(tr("..."));
connect(browseButton, SIGNAL(clicked()), this, SLOT(browse()));
buttonBox = new QDialogButtonBox(QDialogButtonBox::Open
| QDialogButtonBox::Cancel
| QDialogButtonBox::Help);
connect(buttonBox, SIGNAL(accepted()), this, SLOT(openFile()));
connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
connect(buttonBox, SIGNAL(helpRequested()), this, SLOT(help()));
}
void FindFileDialog::createComboBoxes()
{
directoryComboBox = new QComboBox;
fileNameComboBox = new QComboBox;
fileNameComboBox->setEditable(true);
fileNameComboBox->setSizePolicy(QSizePolicy::Expanding,
QSizePolicy::Preferred);
directoryComboBox->setMinimumContentsLength(30);
directoryComboBox->setSizeAdjustPolicy(
QComboBox::AdjustToMinimumContentsLength);
directoryComboBox->setSizePolicy(QSizePolicy::Expanding,
QSizePolicy::Preferred);
connect(fileNameComboBox, SIGNAL(editTextChanged(const QString &)),
this, SLOT(update()));
connect(directoryComboBox, SIGNAL(currentIndexChanged(const QString &)),
this, SLOT(update()));
}
void FindFileDialog::createFilesTree()
{
foundFilesTree = new QTreeWidget;
foundFilesTree->setColumnCount(1);
foundFilesTree->setHeaderLabels(QStringList(tr("Matching Files")));
foundFilesTree->setRootIsDecorated(false);
foundFilesTree->setSelectionMode(QAbstractItemView::SingleSelection);
connect(foundFilesTree, SIGNAL(itemActivated(QTreeWidgetItem *, int)),
this, SLOT(openFile(QTreeWidgetItem *)));
}
void FindFileDialog::createLabels()
{
directoryLabel = new QLabel(tr("Search in:"));
fileNameLabel = new QLabel(tr("File name (including wildcards):"));
}
void FindFileDialog::createLayout()
{
QHBoxLayout *fileLayout = new QHBoxLayout;
fileLayout->addWidget(fileNameLabel);
fileLayout->addWidget(fileNameComboBox);
QHBoxLayout *directoryLayout = new QHBoxLayout;
directoryLayout->addWidget(directoryLabel);
directoryLayout->addWidget(directoryComboBox);
directoryLayout->addWidget(browseButton);
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addLayout(fileLayout);
mainLayout->addLayout(directoryLayout);
mainLayout->addWidget(foundFilesTree);
mainLayout->addStretch();
mainLayout->addWidget(buttonBox);
setLayout(mainLayout);
}</pre>
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