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Diffstat (limited to 'kexi/plugins/macros/lib/metaparameter.cpp')
-rw-r--r-- | kexi/plugins/macros/lib/metaparameter.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/kexi/plugins/macros/lib/metaparameter.cpp b/kexi/plugins/macros/lib/metaparameter.cpp new file mode 100644 index 000000000..7f072b2bc --- /dev/null +++ b/kexi/plugins/macros/lib/metaparameter.cpp @@ -0,0 +1,146 @@ +/*************************************************************************** + * This file is part of the KDE project + * copyright (C) 2005 by Sebastian Sauer (mail@dipe.org) + * copyright (C) 2005 by Tobi Krebs (tobi.krebs@gmail.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * You should have received a copy of the GNU Library General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + ***************************************************************************/ + +#include "metaparameter.h" +#include "exception.h" +#include "variable.h" + +#include <kdebug.h> + +using namespace KoMacro; + +namespace KoMacro { + + /** + * @internal d-pointer class to be more flexible on future extension of the + * functionality without to much risk to break the binary compatibility. + */ + class MetaParameter::Private + { + public: + + /** + * The signatures argument that represents this MetaParameter. + * This could be something like "const QString&", "int" or + * "QMap < QString, QVariant > ". + */ + QString signatureargument; + + /** + * The type of the @a Variable . + */ + MetaParameter::Type type; + + /** + * If the @a MetaParameter::Type is a Variant this QVariant::Type + * is used to defined what kind of Variant it is. + */ + QVariant::Type varianttype; + + }; + +} + +MetaParameter::MetaParameter(const QString& signatureargument) + : KShared() + , d( new Private() ) // create the private d-pointer instance. +{ + d->type = TypeNone; + + if(! signatureargument.isNull()) { + setSignatureArgument( signatureargument ); + } +} + +MetaParameter::~MetaParameter() +{ + delete d; +} + +MetaParameter::Type MetaParameter::type() const +{ + return d->type; +} + +const QString MetaParameter::typeName() const +{ + switch( d->type ) { + case TypeNone: + return "None"; + case TypeVariant: + return "Variant"; + case TypeObject: + return "Object"; + } + return QString::null; +} + +void MetaParameter::setType(MetaParameter::Type type) +{ + d->type = type; + d->varianttype = QVariant::Invalid; +} + +QVariant::Type MetaParameter::variantType() const +{ + return d->varianttype; +} + +void MetaParameter::setVariantType(QVariant::Type varianttype) +{ + d->type = TypeVariant; + d->varianttype = varianttype; +} + +void MetaParameter::setSignatureArgument(const QString& signatureargument) +{ + d->signatureargument = signatureargument; + + QString argument = signatureargument; + if(argument.startsWith("const")) { + argument = argument.mid(5).stripWhiteSpace(); + } + + if(argument.endsWith("&")) { + argument = argument.left( argument.length() - 1 ).stripWhiteSpace(); + } + + if(argument.isEmpty()) { + throw Exception(QString("Empty signature argument passed.")); + } + if(argument == "QVariant") { + setVariantType( QVariant::Invalid ); + } + + QVariant::Type type = argument.isNull() ? QVariant::Invalid : QVariant::nameToType(argument.latin1()); + if (type != QVariant::Invalid) { + setVariantType( type ); + } + else { + setType( TypeObject ); + } +} + +bool MetaParameter::validVariable(KSharedPtr<Variable> variable) const +{ + if( type() != variable->type() ) { + return false; + } + return true; +} |