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Diffstat (limited to 'examples/xml/streambookmarks/xbelreader.cpp')
-rw-r--r-- | examples/xml/streambookmarks/xbelreader.cpp | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/examples/xml/streambookmarks/xbelreader.cpp b/examples/xml/streambookmarks/xbelreader.cpp new file mode 100644 index 0000000000..e6d1c64e64 --- /dev/null +++ b/examples/xml/streambookmarks/xbelreader.cpp @@ -0,0 +1,175 @@ +/**************************************************************************** +** +** 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 <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) +{ + xml.setDevice(device); + + if (xml.readNextStartElement()) { + if (xml.name() == "xbel" && xml.attributes().value("version") == "1.0") + readXBEL(); + else + xml.raiseError(QObject::tr("The file is not an XBEL version 1.0 file.")); + } + + return !xml.error(); +} +//! [1] + +//! [2] +QString XbelReader::errorString() const +{ + return QObject::tr("%1\nLine %2, column %3") + .arg(xml.errorString()) + .arg(xml.lineNumber()) + .arg(xml.columnNumber()); +} +//! [2] + +//! [3] +void XbelReader::readXBEL() +{ + Q_ASSERT(xml.isStartElement() && xml.name() == "xbel"); + + while (xml.readNextStartElement()) { + if (xml.name() == "folder") + readFolder(0); + else if (xml.name() == "bookmark") + readBookmark(0); + else if (xml.name() == "separator") + readSeparator(0); + else + xml.skipCurrentElement(); + } +} +//! [3] + +//! [4] +void XbelReader::readTitle(QTreeWidgetItem *item) +{ + Q_ASSERT(xml.isStartElement() && xml.name() == "title"); + + QString title = xml.readElementText(); + item->setText(0, title); +} +//! [4] + +//! [5] +void XbelReader::readSeparator(QTreeWidgetItem *item) +{ + Q_ASSERT(xml.isStartElement() && xml.name() == "separator"); + + QTreeWidgetItem *separator = createChildItem(item); + separator->setFlags(item->flags() & ~Qt::ItemIsSelectable); + separator->setText(0, QString(30, 0xB7)); + xml.skipCurrentElement(); +} +//! [5] + +void XbelReader::readFolder(QTreeWidgetItem *item) +{ + Q_ASSERT(xml.isStartElement() && xml.name() == "folder"); + + QTreeWidgetItem *folder = createChildItem(item); + bool folded = (xml.attributes().value("folded") != "no"); + treeWidget->setItemExpanded(folder, !folded); + + while (xml.readNextStartElement()) { + if (xml.name() == "title") + readTitle(folder); + else if (xml.name() == "folder") + readFolder(folder); + else if (xml.name() == "bookmark") + readBookmark(folder); + else if (xml.name() == "separator") + readSeparator(folder); + else + xml.skipCurrentElement(); + } +} + +void XbelReader::readBookmark(QTreeWidgetItem *item) +{ + Q_ASSERT(xml.isStartElement() && xml.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, xml.attributes().value("href").toString()); + + while (xml.readNextStartElement()) { + if (xml.name() == "title") + readTitle(bookmark); + else + xml.skipCurrentElement(); + } +} + +QTreeWidgetItem *XbelReader::createChildItem(QTreeWidgetItem *item) +{ + QTreeWidgetItem *childItem; + if (item) { + childItem = new QTreeWidgetItem(item); + } else { + childItem = new QTreeWidgetItem(treeWidget); + } + childItem->setData(0, Qt::UserRole, xml.name().toString()); + return childItem; +} |