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Use xml stream reader/writer not DOM

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This commit is contained in:
craig.p.drummond
2013-01-12 08:27:41 +00:00
committed by craig.p.drummond
parent 78c96ff4da
commit 0748006af2
1 changed files with 59 additions and 58 deletions
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117
models/streamsmodel.cpp
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@@ -30,8 +30,8 @@
#include <QtCore/QDir>
#include <QtCore/QFile>
#include <QtCore/qglobal.h>
#include <QtXml/QDomDocument>
#include <QtXml/QDomElement>
#include <QtXml/QXmlStreamReader>
#include <QtXml/QXmlStreamWriter>
#include "config.h"
#include "settings.h"
#if defined Q_OS_WIN
@@ -212,56 +212,57 @@ bool StreamsModel::load(const QString &filename, bool isInternal)
return false;
}
QDomDocument doc;
QXmlStreamReader doc(&file);
bool haveInserted=false;
doc.setContent(&file);
QDomElement root = doc.documentElement();
int level=0;
CategoryItem *cat=0;
if ("cantata" == root.tagName() && root.hasAttribute("version") && "1.0" == root.attribute("version")) {
QDomElement category = root.firstChildElement("category");
while (!category.isNull()) {
if (category.hasAttribute("name")) {
QString catName=category.attribute("name");
QString catIcon=category.attribute("icon");
CategoryItem *cat=getCategory(catName, true, !isInternal);
while (!doc.atEnd()) {
doc.readNext();
if (doc.isStartElement()) {
++level;
if (2==level && QLatin1String("category")==doc.name()) {
QString catName=doc.attributes().value("name").toString();
QString catIcon=doc.attributes().value("icon").toString();
cat=getCategory(catName, true, !isInternal);
if (cat && cat->icon.isEmpty() && !catIcon.isEmpty() && iconIsValid(catIcon)) {
cat->icon=catIcon;
}
QDomElement stream = category.firstChildElement("stream");
while (!stream.isNull()) {
if (stream.hasAttribute("name") && stream.hasAttribute("url")) {
QString name=stream.attribute("name");
QString icon=stream.attribute("icon");
QString genre=stream.attribute("genre");
QString origName=name;
QUrl url=QUrl(stream.attribute("url"));
} else if (cat && 3==level && QLatin1String("stream")==doc.name()) {
QString name=doc.attributes().value("name").toString();
QString icon=doc.attributes().value("icon").toString();
QString genre=doc.attributes().value("genre").toString();
QString origName=name;
QUrl url=QUrl(doc.attributes().value("url").toString());
if (!entryExists(cat, QString(), url)) {
int i=1;
for (; i<100 && entryExists(cat, name); ++i) {
name=origName+QLatin1String("_")+QString::number(i);
}
if (!name.isEmpty() && url.isValid() && !entryExists(cat, QString(), url)) {
int i=1;
for (; i<100 && entryExists(cat, name); ++i) {
name=origName+QLatin1String("_")+QString::number(i);
}
if (i<100) {
if (!haveInserted) {
haveInserted=true;
}
if (!isInternal) {
beginInsertRows(createIndex(items.indexOf(cat), 0, cat), cat->streams.count(), cat->streams.count());
}
StreamItem *stream=new StreamItem(name, genre, iconIsValid(icon) ? icon : QString(), url, cat);
cat->itemMap.insert(url.toString(), stream);
cat->streams.append(stream);
if (!isInternal) {
endInsertRows();
}
}
if (i<100) {
if (!haveInserted) {
haveInserted=true;
}
if (!isInternal) {
beginInsertRows(createIndex(items.indexOf(cat), 0, cat), cat->streams.count(), cat->streams.count());
}
StreamItem *stream=new StreamItem(name, genre, iconIsValid(icon) ? icon : QString(), url, cat);
cat->itemMap.insert(url.toString(), stream);
cat->streams.append(stream);
if (!isInternal) {
endInsertRows();
}
}
stream=stream.nextSiblingElement("stream");
}
}
category=category.nextSiblingElement("category");
} else if (doc.isEndElement()) {
--level;
if (2==level && QLatin1String("category")==doc.name()) {
cat=0;
}
}
}
@@ -283,37 +284,37 @@ bool StreamsModel::save(const QString &filename, const QSet<StreamsModel::Item *
return false;
}
QDomDocument doc;
QDomElement root = doc.createElement("cantata");
root.setAttribute("version", "1.0");
doc.appendChild(root);
QXmlStreamWriter doc(&file);
doc.writeStartDocument();
doc.writeStartElement("cantata");
doc.writeAttribute("version", "1.0");
doc.setAutoFormatting(false);
foreach (CategoryItem *c, items) {
if (selection.isEmpty() || selection.contains(c)) {
QDomElement cat = doc.createElement("category");
cat.setAttribute("name", c->name);
doc.writeStartElement("category");
doc.writeAttribute("name", c->name);
if (!c->icon.isEmpty() && c->icon!=constDefaultCategoryIcon) {
cat.setAttribute("icon", c->icon);
doc.writeAttribute("icon", c->icon);
}
root.appendChild(cat);
foreach (StreamItem *s, c->streams) {
if (selection.isEmpty() || selection.contains(s)) {
QDomElement stream = doc.createElement("stream");
stream.setAttribute("name", s->name);
stream.setAttribute("url", s->url.toString());
doc.writeStartElement("stream");
doc.writeAttribute("name", s->name);
doc.writeAttribute("url", s->url.toString());
if (!s->icon.isEmpty() && s->icon!=Icons::streamIcon.name()) {
stream.setAttribute("icon", s->icon);
doc.writeAttribute("icon", s->icon);
}
if (!s->genre.isEmpty()) {
stream.setAttribute("genre", s->genre);
doc.writeAttribute("genre", s->genre);
}
cat.appendChild(stream);
doc.writeEndElement();
}
}
doc.writeEndElement();
}
}
QTextStream(&file) << doc.toString();
doc.writeEndElement();
doc.writeEndDocument();
return true;
}