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125 lines
3.6 KiB
C++
125 lines
3.6 KiB
C++
/* Copyright 2014, Uwe L. Korn <uwelk@xhochy.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "Json.h"
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#include <QJsonDocument>
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#include <QMetaProperty>
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#include <QVariantHash>
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namespace QJsonWrapper
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{
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QVariantMap
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qobject2qvariant( const QObject *object )
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{
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QVariantMap map;
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if ( !object )
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{
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return map;
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}
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const QMetaObject *metaObject = object->metaObject();
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for ( int i = 0; i < metaObject->propertyCount(); ++i )
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{
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QMetaProperty metaproperty = metaObject->property( i );
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if ( metaproperty.isReadable() )
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{
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map[ QLatin1String( metaproperty.name() ) ] = object->property( metaproperty.name() );
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}
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}
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return map;
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}
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void
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qvariant2qobject( const QVariantMap &variant, QObject *object )
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{
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for ( QVariantMap::const_iterator iter = variant.begin(); iter != variant.end(); ++iter )
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{
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QVariant property = object->property( iter.key().toLatin1() );
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Q_ASSERT( property.isValid() );
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if ( property.isValid() )
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{
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QVariant value = iter.value();
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if ( value.canConvert( property.type() ) )
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{
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value.convert( property.type() );
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object->setProperty( iter.key().toLatin1(), value );
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}
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else if ( QString( QLatin1String( "QVariant" ) ).compare( QLatin1String( property.typeName() ) ) == 0 )
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{
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object->setProperty( iter.key().toLatin1(), value );
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}
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}
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}
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}
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QVariant
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parseJson( const QByteArray &jsonData, bool *ok, QByteArray *errorString )
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{
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QJsonParseError error;
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QJsonDocument doc = QJsonDocument::fromJson( jsonData, &error );
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if ( ok )
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{
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*ok = ( error.error == QJsonParseError::NoError );
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}
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if ( errorString && !ok )
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{
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*errorString = error.errorString().toUtf8();
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}
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return doc.toVariant();
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}
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QByteArray
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toJson( const QVariant &variant, bool *ok, QByteArray *errorString, bool indented )
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{
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QVariant _variant = variant;
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if ( variant.type() == QVariant::Hash )
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{
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// QJsonDocument cannot deal with QVariantHash, so convert.
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const QVariantHash hash = variant.toHash();
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QVariantMap map;
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QHashIterator<QString, QVariant> it( hash );
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while ( it.hasNext() )
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{
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it.next();
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map.insert( it.key(), it.value() );
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}
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_variant = map;
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}
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QJsonDocument doc = QJsonDocument::fromVariant( _variant );
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if ( ok )
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{
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*ok = !doc.isNull();
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}
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if ( errorString && !ok )
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{
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*errorString = QByteArray( "Failed to convert from variant" );
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}
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return doc.toJson( indented ? QJsonDocument::Indented : QJsonDocument::Compact );
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}
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}
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