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Diffstat (limited to 'examples/xml/streambookmarks/xbelreader.cpp')
| -rw-r--r-- | examples/xml/streambookmarks/xbelreader.cpp | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/examples/xml/streambookmarks/xbelreader.cpp b/examples/xml/streambookmarks/xbelreader.cpp new file mode 100644 index 0000000..561997a --- /dev/null +++ b/examples/xml/streambookmarks/xbelreader.cpp @@ -0,0 +1,205 @@ +/**************************************************************************** +** +** 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 "xbelreader.h" + +//! [0] +XbelReader::XbelReader(QTreeWidget *treeWidget) + : treeWidget(treeWidget) +{ + QStyle *style = treeWidget->style(); + + folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirClosedIcon), + QIcon::Normal, QIcon::Off); + folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirOpenIcon), + QIcon::Normal, QIcon::On); + bookmarkIcon.addPixmap(style->standardPixmap(QStyle::SP_FileIcon)); +} +//! [0] + +//! [1] +bool XbelReader::read(QIODevice *device) +{ + setDevice(device); + + while (!atEnd()) { + readNext(); + + if (isStartElement()) { + if (name() == "xbel" && attributes().value("version") == "1.0") + readXBEL(); + else + raiseError(QObject::tr("The file is not an XBEL version 1.0 file.")); + } + } + + return !error(); +} +//! [1] + +//! [2] +void XbelReader::readUnknownElement() +{ + Q_ASSERT(isStartElement()); + + while (!atEnd()) { + readNext(); + + if (isEndElement()) + break; + + if (isStartElement()) + readUnknownElement(); + } +} +//! [2] + +//! [3] +void XbelReader::readXBEL() +{ + Q_ASSERT(isStartElement() && name() == "xbel"); + + while (!atEnd()) { + readNext(); + + if (isEndElement()) + break; + + if (isStartElement()) { + if (name() == "folder") + readFolder(0); + else if (name() == "bookmark") + readBookmark(0); + else if (name() == "separator") + readSeparator(0); + else + readUnknownElement(); + } + } +} +//! [3] + +//! [4] +void XbelReader::readTitle(QTreeWidgetItem *item) +{ + Q_ASSERT(isStartElement() && name() == "title"); + + QString title = readElementText(); + item->setText(0, title); +} +//! [4] + +//! [5] +void XbelReader::readSeparator(QTreeWidgetItem *item) +{ + QTreeWidgetItem *separator = createChildItem(item); + separator->setFlags(item->flags() & ~Qt::ItemIsSelectable); + separator->setText(0, QString(30, 0xB7)); + readElementText(); +} +//! [5] + +void XbelReader::readFolder(QTreeWidgetItem *item) +{ + Q_ASSERT(isStartElement() && name() == "folder"); + + QTreeWidgetItem *folder = createChildItem(item); + bool folded = (attributes().value("folded") != "no"); + treeWidget->setItemExpanded(folder, !folded); + + while (!atEnd()) { + readNext(); + + if (isEndElement()) + break; + + if (isStartElement()) { + if (name() == "title") + readTitle(folder); + else if (name() == "folder") + readFolder(folder); + else if (name() == "bookmark") + readBookmark(folder); + else if (name() == "separator") + readSeparator(folder); + else + readUnknownElement(); + } + } +} + +void XbelReader::readBookmark(QTreeWidgetItem *item) +{ + Q_ASSERT(isStartElement() && name() == "bookmark"); + + QTreeWidgetItem *bookmark = createChildItem(item); + bookmark->setFlags(bookmark->flags() | Qt::ItemIsEditable); + bookmark->setIcon(0, bookmarkIcon); + bookmark->setText(0, QObject::tr("Unknown title")); + bookmark->setText(1, attributes().value("href").toString()); + while (!atEnd()) { + readNext(); + + if (isEndElement()) + break; + + if (isStartElement()) { + if (name() == "title") + readTitle(bookmark); + else + readUnknownElement(); + } + } +} + +QTreeWidgetItem *XbelReader::createChildItem(QTreeWidgetItem *item) +{ + QTreeWidgetItem *childItem; + if (item) { + childItem = new QTreeWidgetItem(item); + } else { + childItem = new QTreeWidgetItem(treeWidget); + } + childItem->setData(0, Qt::UserRole, name().toString()); + return childItem; +} |