diff options
Diffstat (limited to 'examples/help/simpletextviewer/findfiledialog.cpp')
-rw-r--r-- | examples/help/simpletextviewer/findfiledialog.cpp | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/examples/help/simpletextviewer/findfiledialog.cpp b/examples/help/simpletextviewer/findfiledialog.cpp new file mode 100644 index 000000000..086be965d --- /dev/null +++ b/examples/help/simpletextviewer/findfiledialog.cpp @@ -0,0 +1,221 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore/QDir> +#include <QtGui/QLayout> +#include <QtGui/QComboBox> +#include <QtGui/QTreeWidget> +#include <QtGui/QLayout> +#include <QtGui/QFileDialog> +#include <QtGui/QDialogButtonBox> +#include <QtGui/QToolButton> +#include <QtGui/QPushButton> +#include <QtGui/QLabel> + +#include "findfiledialog.h" +#include "assistant.h" +#include "textedit.h" + +//! [0] +FindFileDialog::FindFileDialog(TextEdit *editor, Assistant *assistant) + : QDialog(editor) +{ + currentAssistant = 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() +{ + currentAssistant->showDocumentation("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(); + + currentEditor->setContents(path + fileName); + 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(QString)), + this, SLOT(update())); + connect(directoryComboBox, SIGNAL(currentIndexChanged(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); +} |