/****************************************************************************

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//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

#ifndef Patternist_XsdAttribute_H

#define Patternist_XsdAttribute_H

#include "qanysimpletype_p.h"

#include "qnamedschemacomponent_p.h"

#include "qxsdannotated_p.h"

#include <QtCore/QList>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

namespace QPatternist

{

    /**

     * @short Represents a XSD attribute object.

     *

     * This class represents the <em>attribute</em> object of a XML schema as described

     * <a href="http://www.w3.org/TR/xmlschema11-1/#cAttribute_Declarations">here</a>.

     *

     * It contains information from either a top-level attribute declaration (as child of

     * a <em>schema</em> object) or of a local attribute declaration (as child of <em>complexType</em>

     * or <em>attributeGroup</em> object without a 'ref' attribute).

     *

     * All other occurrences of the <em>attribute</em> object are represented by the XsdAttributeUse class.

     *

     * @see <a href="http://www.w3.org/Submission/2004/SUBM-xmlschema-api-20040309/xml-schema-api.html#Interface-XSAttributeDeclaration">XML Schema API reference</a>

     * @ingroup Patternist_schema

     * @author Tobias Koenig <tobias.koenig@nokia.com>

     */

    class XsdAttribute : public NamedSchemaComponent, public XsdAnnotated

    {

        public:

            typedef QExplicitlySharedDataPointer<XsdAttribute> Ptr;

            typedef QList<XsdAttribute::Ptr> List;

            /**

             * @short Describes the scope of an attribute.

             *

             * @see <a href="http://www.w3.org/TR/xmlschema11-1/#sc_a">Scope Definition</a>

             */

            class Scope : public QSharedData

            {

                public:

                    typedef QExplicitlySharedDataPointer<Scope> Ptr;

                    /**

                     * Describes the <a href="http://www.w3.org/TR/xmlschema11-1/#ad-scope">scope</a> of an attribute.

                     */

                    enum Variety

                    {

                        Global,    ///< The attribute is defined globally as child of the <em>schema</em> object.

                        Local      ///< The attribute is defined locally as child of a complex type or attribute group definition.

                    };

                    /**

                     * Sets the @p variety of the attribute scope.

                     *

                     * @see <a href="http://www.w3.org/TR/xmlschema11-1/#sc_a-variety">Variety Definition</a>

                     */

                    void setVariety(Variety variety);

                    /**

                     * Returns the variety of the attribute scope.

                     */

                    Variety variety() const;

                    /**

                     * Sets the @p parent complex type or attribute group definition of the attribute scope.

                     *

                     * @see <a href="http://www.w3.org/TR/xmlschema11-1/#sc_a-parent">Parent Definition</a>

                     */

                    void setParent(const NamedSchemaComponent::Ptr &parent);

                    /**

                     * Returns the parent complex type or attribute group definition of the attribute scope.

                     */

                    NamedSchemaComponent::Ptr parent() const;

                private:

                    Variety                   m_variety;

                    NamedSchemaComponent::Ptr m_parent;

            };

            /**

             * @short Describes the value constraint of an attribute.

             *

             * @see <a href="http://www.w3.org/TR/xmlschema11-1/#vc_a">Value Constraint Definition</a>

             */

            class ValueConstraint : public QSharedData

            {

                public:

                    typedef QExplicitlySharedDataPointer<ValueConstraint> Ptr;

                    /**

                     * Describes the <a href="http://www.w3.org/TR/xmlschema11-1/#ad-value_constraint">value constraint</a> of an attribute.

                     */

                    enum Variety

                    {

                        Default,  ///< The attribute has a default value set.

                        Fixed     ///< The attribute has a fixed value set.

                    };

                    /**

                     * Sets the @p variety of the attribute value constraint.

                     *

                     * @see <a href="http://www.w3.org/TR/xmlschema11-1/#vc_a-variety">Variety Definition</a>

                     */

                    void setVariety(Variety variety);

                    /**

                     * Returns the variety of the attribute value constraint.

                     */

                    Variety variety() const;

                    /**

                     * Sets the @p value of the constraint.

                     *

                     * @see <a href="http://www.w3.org/TR/xmlschema11-1/#vc_a-value">Value Definition</a>

                     */

                    void setValue(const QString &value);

                    /**

                     * Returns the value of the constraint.

                     */

                    QString value() const;

                    /**

                     * Sets the lexical @p form of the constraint.

                     *

                     * @see <a href="http://www.w3.org/TR/xmlschema11-1/#vc_a-lexical_form">Lexical Form Definition</a>

                     */

                    void setLexicalForm(const QString &form);

                    /**

                     * Returns the lexical form of the constraint.

                     */

                    QString lexicalForm() const;

                private:

                    Variety m_variety;

                    QString m_value;

                    QString m_lexicalForm;

            };

            /**

             * Sets the simple @p type definition of the attribute.

             *

             * @see <a href="http://www.w3.org/TR/xmlschema11-1/#ad-type_definition">Simple Type Definition</a>

             */

            void setType(const AnySimpleType::Ptr &type);

            /**

             * Returns the simple type definition of the attribute.

             */

            AnySimpleType::Ptr type() const;

            /**

             * Sets the @p scope of the attribute.

             *

             * @see <a href="http://www.w3.org/TR/xmlschema11-1/#ad-scope">Scope Definition</a>

             */

            void setScope(const Scope::Ptr &scope);

            /**

             * Returns the scope of the attribute.

             */

            Scope::Ptr scope() const;

            /**

             * Sets the value @p constraint of the attribute.

             *

             * @see <a href="http://www.w3.org/TR/xmlschema11-1/#ad-value_constraint">Value Constraint Definition</a>

             */

            void setValueConstraint(const ValueConstraint::Ptr &constraint);

            /**

             * Returns the value constraint of the attribute.

             */

            ValueConstraint::Ptr valueConstraint() const;

        private:

            AnySimpleType::Ptr   m_type;

            Scope::Ptr           m_scope;

            ValueConstraint::Ptr m_valueConstraint;

    };

}

QT_END_NAMESPACE

QT_END_HEADER

#endif