xbelhandler.cpp Example File

saxbookmarks/xbelhandler.cpp
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#include <QtWidgets> #include "xbelhandler.h" static inline QString versionAttribute() { return QStringLiteral("version"); } static inline QString hrefAttribute() { return QStringLiteral("href"); } static inline QString foldedAttribute() { return QStringLiteral("folded"); } XbelHandler::XbelHandler(QTreeWidget *treeWidget) : treeWidget(treeWidget) { item = 0; metXbelTag = false; 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)); } bool XbelHandler::startElement(const QString & /* namespaceURI */, const QString & /* localName */, const QString &qName, const QXmlAttributes &attributes) { if (!metXbelTag && qName != QLatin1String("xbel")) { errorStr = QObject::tr("The file is not an XBEL file."); return false; } if (qName == QLatin1String("xbel")) { QString version = attributes.value(versionAttribute()); if (!version.isEmpty() && version != QLatin1String("1.0")) { errorStr = QObject::tr("The file is not an XBEL version 1.0 file."); return false; } metXbelTag = true; } else if (qName == QLatin1String("folder")) { item = createChildItem(qName); item->setFlags(item->flags() | Qt::ItemIsEditable); item->setIcon(0, folderIcon); item->setText(0, QObject::tr("Folder")); bool folded = (attributes.value(foldedAttribute()) != QLatin1String("no")); treeWidget->setItemExpanded(item, !folded); } else if (qName == QLatin1String("bookmark")) { item = createChildItem(qName); item->setFlags(item->flags() | Qt::ItemIsEditable); item->setIcon(0, bookmarkIcon); item->setText(0, QObject::tr("Unknown title")); item->setText(1, attributes.value(hrefAttribute())); } else if (qName == QLatin1String("separator")) { item = createChildItem(qName); item->setFlags(item->flags() & ~Qt::ItemIsSelectable); item->setText(0, QString(30, 0xB7)); } currentText.clear(); return true; } bool XbelHandler::endElement(const QString & /* namespaceURI */, const QString & /* localName */, const QString &qName) { if (qName == QLatin1String("title")) { if (item) item->setText(0, currentText); } else if (qName == QLatin1String("folder") || qName == QLatin1String("bookmark") || qName == QLatin1String("separator")) { item = item->parent(); } return true; } bool XbelHandler::characters(const QString &str) { currentText += str; return true; } bool XbelHandler::fatalError(const QXmlParseException &exception) { QMessageBox::information(treeWidget->window(), QObject::tr("SAX Bookmarks"), QObject::tr("Parse error at line %1, column %2:\n" "%3") .arg(exception.lineNumber()) .arg(exception.columnNumber()) .arg(exception.message())); return false; } QString XbelHandler::errorString() const { return errorStr; } QTreeWidgetItem *XbelHandler::createChildItem(const QString &tagName) { QTreeWidgetItem *childItem; if (item) { childItem = new QTreeWidgetItem(item); } else { childItem = new QTreeWidgetItem(treeWidget); } childItem->setData(0, Qt::UserRole, tagName); return childItem; }