qgsattributeeditorelement.h

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/***************************************************************************
  qgsattributeeditorelement.h - QgsAttributeEditorElement
 
 ---------------------
 begin                : 18.8.2016
 copyright            : (C) 2016 by Matthias Kuhn
 email                : [email protected]
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
#ifndef QGSATTRIBUTEEDITORELEMENT_H
#define QGSATTRIBUTEEDITORELEMENT_H
 
#include "qgis_core.h"
#include "qgsrelation.h"
#include "qgsoptionalexpression.h"
#include "qgspropertycollection.h"
#include <QColor>
#include <QFont>
 
class CORE_EXPORT QgsAttributeEditorElement SIP_ABSTRACT
{
 
#ifdef SIP_RUN
    SIP_CONVERT_TO_SUBCLASS_CODE
    switch ( sipCpp->type() )
    {
      case QgsAttributeEditorElement::AeTypeContainer:
        sipType = sipType_QgsAttributeEditorContainer;
        break;
      case QgsAttributeEditorElement::AeTypeField:
        sipType = sipType_QgsAttributeEditorField;
        break;
      case QgsAttributeEditorElement::AeTypeRelation:
        sipType = sipType_QgsAttributeEditorRelation;
        break;
      case QgsAttributeEditorElement::AeTypeAction:
        sipType = sipType_QgsAttributeEditorAction;
        break;
      default:
        sipType = nullptr;
        break;
    }
    SIP_END
#endif
  public:
 
    struct CORE_EXPORT LabelStyle
    {
 
      QColor color;
 
      QFont font;
 
      bool overrideColor = false;
 
      bool overrideFont = false;
 
      void readXml( const QDomNode &node ) SIP_SKIP;
 
      QDomElement writeXml( QDomDocument &document ) const SIP_SKIP;
 
      bool operator==( LabelStyle const  &other ) const SIP_SKIP;
    };
 
 
    enum AttributeEditorType
    {
      AeTypeContainer, 
      AeTypeField,     
      AeTypeRelation,  
      AeTypeInvalid,   
      AeTypeQmlElement, 
      AeTypeHtmlElement, 
      AeTypeAction 
    };
 
    QgsAttributeEditorElement( AttributeEditorType type, const QString &name, QgsAttributeEditorElement *parent = nullptr )
      : mType( type )
      , mName( name )
      , mParent( parent )
      , mShowLabel( true )
    {}
 
    virtual ~QgsAttributeEditorElement() = default;
 
    static QgsAttributeEditorElement *create( const QDomElement &element, const QString &layerId, const QgsFields &fields, const QgsReadWriteContext &context, QgsAttributeEditorElement *parent = nullptr ) SIP_FACTORY;
 
    QString name() const { return mName; }
 
    AttributeEditorType type() const { return mType; }
 
    QgsAttributeEditorElement *parent() const { return mParent; }
 
    QDomElement toDomElement( QDomDocument &doc ) const;
 
    virtual QgsAttributeEditorElement *clone( QgsAttributeEditorElement *parent ) const = 0 SIP_FACTORY;
 
    bool showLabel() const;
 
    void setShowLabel( bool showLabel );
 
    LabelStyle labelStyle() const;
 
    void setLabelStyle( const LabelStyle &labelStyle );
 
 
  protected:
#ifndef SIP_RUN
    AttributeEditorType mType;
    QString mName;
    QgsAttributeEditorElement *mParent = nullptr;
    bool mShowLabel;
    LabelStyle mLabelStyle;
#endif
 
  private:
 
    virtual void saveConfiguration( QDomElement &elem, QDomDocument &doc ) const = 0;
 
    virtual void loadConfiguration( const QDomElement &element,  const QString &layerId, const QgsReadWriteContext &context, const QgsFields &fields ) = 0;
 
    virtual QString typeIdentifier() const = 0;
 
};
 
#endif // QGSATTRIBUTEEDITORELEMENT_H