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Diffstat (limited to 'examples/assistant/simpletextviewer/findfiledialog.cpp')
| -rw-r--r-- | examples/assistant/simpletextviewer/findfiledialog.cpp | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/examples/assistant/simpletextviewer/findfiledialog.cpp b/examples/assistant/simpletextviewer/findfiledialog.cpp new file mode 100644 index 0000000..f73657e --- /dev/null +++ b/examples/assistant/simpletextviewer/findfiledialog.cpp @@ -0,0 +1,221 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "findfiledialog.h" + +//! [0] +FindFileDialog::FindFileDialog(QTextEdit *editor, QAssistantClient *assistant, + QWidget *parent) + : QDialog(parent) +{ + currentAssistantClient = assistant; + currentEditor = editor; +//! [0] + + createButtons(); + createComboBoxes(); + createFilesTree(); + createLabels(); + createLayout(); + + directoryComboBox->addItem(QDir::toNativeSeparators(QDir::currentPath())); + fileNameComboBox->addItem("*"); + findFiles(); + + setWindowTitle(tr("Find File")); +//! [1] +} +//! [1] + +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(); + } +} + +//! [2] +void FindFileDialog::help() +{ + currentAssistantClient->showPage(QLibraryInfo::location(QLibraryInfo::ExamplesPath) + + QDir::separator() + "assistant/simpletextviewer/documentation/filedialog.html"); +} +//! [2] + +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); +} |