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50
51#include <QtWidgets>
52
53#include "xbelreader.h"
54
55//! [0]
56XbelReader::XbelReader(QTreeWidget *treeWidget)
57 : treeWidget(treeWidget)
58{
59 QStyle *style = treeWidget->style();
60
61 folderIcon.addPixmap(pixmap: style->standardPixmap(standardPixmap: QStyle::SP_DirClosedIcon),
62 mode: QIcon::Normal, state: QIcon::Off);
63 folderIcon.addPixmap(pixmap: style->standardPixmap(standardPixmap: QStyle::SP_DirOpenIcon),
64 mode: QIcon::Normal, state: QIcon::On);
65 bookmarkIcon.addPixmap(pixmap: style->standardPixmap(standardPixmap: QStyle::SP_FileIcon));
66}
67//! [0]
68
69//! [1]
70bool XbelReader::read(QIODevice *device)
71{
72 xml.setDevice(device);
73
74 if (xml.readNextStartElement()) {
75 if (xml.name() == QLatin1String("xbel")
76 && xml.attributes().value(qualifiedName: versionAttribute()) == QLatin1String("1.0")) {
77 readXBEL();
78 } else {
79 xml.raiseError(message: QObject::tr(s: "The file is not an XBEL version 1.0 file."));
80 }
81 }
82
83 return !xml.error();
84}
85//! [1]
86
87//! [2]
88QString XbelReader::errorString() const
89{
90 return QObject::tr(s: "%1\nLine %2, column %3")
91 .arg(a: xml.errorString())
92 .arg(a: xml.lineNumber())
93 .arg(a: xml.columnNumber());
94}
95//! [2]
96
97//! [3]
98void XbelReader::readXBEL()
99{
100 Q_ASSERT(xml.isStartElement() && xml.name() == QLatin1String("xbel"));
101
102 while (xml.readNextStartElement()) {
103 if (xml.name() == QLatin1String("folder"))
104 readFolder(item: 0);
105 else if (xml.name() == QLatin1String("bookmark"))
106 readBookmark(item: 0);
107 else if (xml.name() == QLatin1String("separator"))
108 readSeparator(item: 0);
109 else
110 xml.skipCurrentElement();
111 }
112}
113//! [3]
114
115//! [4]
116void XbelReader::readTitle(QTreeWidgetItem *item)
117{
118 Q_ASSERT(xml.isStartElement() && xml.name() == QLatin1String("title"));
119
120 QString title = xml.readElementText();
121 item->setText(column: 0, atext: title);
122}
123//! [4]
124
125//! [5]
126void XbelReader::readSeparator(QTreeWidgetItem *item)
127{
128 Q_ASSERT(xml.isStartElement() && xml.name() == QLatin1String("separator"));
129
130 QTreeWidgetItem *separator = createChildItem(item);
131 separator->setFlags(item->flags() & ~Qt::ItemIsSelectable);
132 separator->setText(column: 0, atext: QString(30, 0xB7));
133 xml.skipCurrentElement();
134}
135//! [5]
136
137void XbelReader::readFolder(QTreeWidgetItem *item)
138{
139 Q_ASSERT(xml.isStartElement() && xml.name() == QLatin1String("folder"));
140
141 QTreeWidgetItem *folder = createChildItem(item);
142 bool folded = (xml.attributes().value(qualifiedName: foldedAttribute()) != QLatin1String("no"));
143 folder->setExpanded(!folded);
144
145 while (xml.readNextStartElement()) {
146 if (xml.name() == QLatin1String("title"))
147 readTitle(item: folder);
148 else if (xml.name() == QLatin1String("folder"))
149 readFolder(item: folder);
150 else if (xml.name() == QLatin1String("bookmark"))
151 readBookmark(item: folder);
152 else if (xml.name() == QLatin1String("separator"))
153 readSeparator(item: folder);
154 else
155 xml.skipCurrentElement();
156 }
157}
158
159void XbelReader::readBookmark(QTreeWidgetItem *item)
160{
161 Q_ASSERT(xml.isStartElement() && xml.name() == QLatin1String("bookmark"));
162
163 QTreeWidgetItem *bookmark = createChildItem(item);
164 bookmark->setFlags(bookmark->flags() | Qt::ItemIsEditable);
165 bookmark->setIcon(column: 0, aicon: bookmarkIcon);
166 bookmark->setText(column: 0, atext: QObject::tr(s: "Unknown title"));
167 bookmark->setText(column: 1, atext: xml.attributes().value(qualifiedName: hrefAttribute()).toString());
168
169 while (xml.readNextStartElement()) {
170 if (xml.name() == QLatin1String("title"))
171 readTitle(item: bookmark);
172 else
173 xml.skipCurrentElement();
174 }
175}
176
177QTreeWidgetItem *XbelReader::createChildItem(QTreeWidgetItem *item)
178{
179 QTreeWidgetItem *childItem;
180 if (item) {
181 childItem = new QTreeWidgetItem(item);
182 } else {
183 childItem = new QTreeWidgetItem(treeWidget);
184 }
185 childItem->setData(column: 0, role: Qt::UserRole, value: xml.name().toString());
186 return childItem;
187}
188

source code of qtbase/examples/xml/streambookmarks/xbelreader.cpp