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Working XML Backup and Restore

Browse source 
The ConfigureDiveComputer class now has functions for complete
XML backup and restore. These dump the loaded settings on a
dive computer to an XML file, and there is an option to
restore them.

Signed-off-by: Joseph W. Joshua <joejoshw@gmail.com>
Signed-off-by: Thiago Macieira <thiago@macieira.org>
This commit is contained in:
Joseph W. Joshua 2014-06-11 09:37:27 +03:00 • committed by Thiago Macieira
parent e54d7d9178
commit aad60ef6da
4 changed files with 115 additions and 13 deletions
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93
qt-ui/configuredivecomputer.cpp
View file

@ -2,6 +2,11 @@
#include "libdivecomputer/hw.h"
#include <QDebug>
#include <QFile>
#include <libxml/parser.h>
#include <libxml/parserInternals.h>
#include <libxml/tree.h>
#include <libxslt/transform.h>
#include <QStringList>
ConfigureDiveComputer::ConfigureDiveComputer(QObject *parent) :
QObject(parent),
@ -49,17 +54,18 @@ bool ConfigureDiveComputer::saveXMLBackup(QString fileName, DeviceDetails *detai
QString xml = "";
QString vendor = data->vendor;
QString product = data->product;
xml += "<backup>";
xml += "\n<divecomputer vendor='" + vendor
+ "' model = '" + product + "'"
+ " />";
xml += "\n<settings>";
xml += "\n<setting name='CustomText' value = '" + details->customText() + "' />";
xml += "\n<setting name='Brightness' value = '" + QString::number(details->brightness()) + "' />";
xml += "\n<setting name='Language' value = '" + QString::number(details->language()) + "' />";
xml += "\n<setting name='DateFormat' value = '" + QString::number(details->dateFormat()) + "' />";
xml += "\n</settings>";
xml += "\n</backup>";
xml += "<DiveComputerSettingsBackup>";
xml += "\n<DiveComputer>";
xml += addSettingToXML("Vendor", vendor);
xml += addSettingToXML("Product", product);
xml += "\n</DiveComputer>";
xml += "\n<Settings>";
xml += addSettingToXML("CustomText", details->customText());
xml += addSettingToXML("Brightness", details->brightness());
xml += addSettingToXML("Language", details->language());
xml += addSettingToXML("DateFormat", details->dateFormat());
xml += "\n</Settings>";
xml += "\n</DiveComputerSettingsBackup>";
QFile file(fileName);
if (!file.open(QIODevice::WriteOnly)) {
errorText = tr("Could not save the backup file %1. Error Message: %2")
@ -74,12 +80,77 @@ bool ConfigureDiveComputer::saveXMLBackup(QString fileName, DeviceDetails *detai
return true;
}
bool ConfigureDiveComputer::restoreXMLBackup(QString fileName, DeviceDetails *details, QString errorText)
{
xmlDocPtr doc;
xmlNodePtr node;
xmlChar *key;
doc = xmlParseFile(fileName.toUtf8().data());
if (doc == NULL) {
errorText = tr("Could not read the backup file.");
return false;
}
node = xmlDocGetRootElement(doc);
if (node == NULL) {
errorText = tr("The specified file is invalid.");
xmlFreeDoc(doc);
return false;
}
if (xmlStrcmp(node->name, (const xmlChar *) "DiveComputerSettingsBackup")) {
errorText = tr("The specified file does not contain a valid backup.");
xmlFreeDoc(doc);
return false;
}
xmlNodePtr child = node->children;
while (child != NULL) {
QString nodeName = (char *)child->name;
if (nodeName == "Settings") {
xmlNodePtr settingNode = child->children;
while (settingNode != NULL) {
QString settingName = (char *)settingNode->name;
key = xmlNodeListGetString(doc, settingNode->xmlChildrenNode, 1);
QString keyString = (char *)key;
if (settingName != "text") {
if (settingName == "CustomText")
details->setCustomText(keyString);
if (settingName == "Brightness")
details->setBrightness(keyString.toInt());
if (settingName == "Language")
details->setLanguage(keyString.toInt());
if (settingName == "DateFormat")
details->setDateFormat(keyString.toInt());
}
settingNode = settingNode->next;
}
}
child = child->next;
}
return true;
}
void ConfigureDiveComputer::setState(ConfigureDiveComputer::states newState)
{
currentState = newState;
emit stateChanged(currentState);
}
QString ConfigureDiveComputer::addSettingToXML(QString settingName, QVariant value)
{
return "\n<" + settingName + ">" + value.toString() + "</" + settingName + ">";
}
void ConfigureDiveComputer::setError(QString err)
{
lastError = err;