property.h

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/*********************************************************************
  ** Copyright (c) 1992-2010 VT MAK
 ** All rights reserved.
 *********************************************************************/


#ifndef property_H_
#define property_H_

#include <QtCore/QVariant>
#include <QtCore/QString>
#include <list>

#include <namespace.h>
#include <widgets/propertyType.h>
#include <widgets/property.h>
#include <memory>

namespace MAKVrExchange
{
   class DtProperty;
   class DtPropertyType;
   typedef std::auto_ptr<DtPropertyType> DtPropertyTypeAP;
   typedef std::list<DtProperty> DtPropertyList;

   class DT_DLL_VRXWIDGETS DtProperty
   {
   public:
   
      // Default constructor Construct a property of a  name and type.
      DtProperty(QString name, DtPropertyTypeAP type,QVariant value);

      DtProperty(const DtProperty&);

      // Default constructor, used by list, do NOT USE. Internal values are 
      // invalid.
      DtProperty();

      // DTOR
      ~DtProperty();

      //bool operator== (const DtProperty&);
      DtProperty& operator= (const DtProperty&);
      virtual bool operator<(const DtProperty&) const;

      DtProperty& appendChild(const DtProperty& child);
      void removeChild(QString name);

      DtProperty* findChild(QString name);
      const DtProperty* findChild(QString name) const;

      // Accessors
      const DtPropertyType* type() const;
      QString name() const;
      QVariant value() const;

      // This provides a simple means of identifying a property and provides a hook
      // to associate this property with some other object. Helps alleviate problems 
      // of objects with duplicate names. Id of -1 is defualt--ie it's unassigned. 
      int id() const;

      // Is read only if myReadOnly is true OR parent is readOnly.
      // If no parent then use only myReadOnly.
      bool readOnly() const;

      DtPropertyList*       children();
      const DtPropertyList* children() const;
      
      // Mutators
      void setId(int id);
      void setValue(QVariant value);
      void setReadOnly(bool readOnly);

   protected:
      QString          myName;      
      QVariant         myValue;
      DtPropertyTypeAP myType;
      int              myId;
      DtPropertyList*  myChildren;
      DtProperty*      myParent;
      bool             myReadOnly;
   };
}

#endif