Source: addressbook.h

# Source: addressbook.h |
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    /*
        This file is part of libkabc.
        Copyright (c) 2001 Cornelius Schumacher

        This library 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 library 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 library; see the file COPYING.LIB.  If not, write to
        the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
        Boston, MA 02111-1307, USA.
    */

    #ifndef KABC_ADDRESSBOOK_H
    #define KABC_ADDRESSBOOK_H

    #include
    #include

    #include "addressee.h"
    #include "field.h"

    namespace KABC {

    class ErrorHandler;
    class Resource;
    class Ticket;

    /**
      @short Address Book

      This class provides access to a collection of address book entries.
    */
    class AddressBook : public QObject
    {
        Q_OBJECT

        friend QDataStream &operator<<( QDataStream &, const AddressBook & );
        friend QDataStream &operator>>( QDataStream &, AddressBook & );
        friend class StdAddressBook;

      public:
        /**
          @short Address Book Iterator

          This class provides an iterator for address book entries.
        */
        class Iterator
        {
          public:
            Iterator();
            Iterator( const Iterator & );
          	~Iterator();

          	Iterator &operator=( const Iterator & );
            const Addressee &operator*() const;
            Addressee &operator*();
            Addressee* operator->();
            Iterator &operator++();
            Iterator &operator++(int);
            Iterator &operator--();
            Iterator &operator--(int);
            bool operator==( const Iterator &it );
            bool operator!=( const Iterator &it );

          	struct IteratorData;
            IteratorData *d;
        };

        /**
          @short Address Book Const Iterator

          This class provides a const iterator for address book entries.
        */
        class ConstIterator
        {
          public:
            ConstIterator();
            ConstIterator( const ConstIterator & );
          	~ConstIterator();

          	ConstIterator &operator=( const ConstIterator & );
            const Addressee &operator*() const;
            const Addressee* operator->() const;
            ConstIterator &operator++();
            ConstIterator &operator++(int);
            ConstIterator &operator--();
            ConstIterator &operator--(int);
            bool operator==( const ConstIterator &it );
            bool operator!=( const ConstIterator &it );

          	struct ConstIteratorData;
            ConstIteratorData *d;
        };

        /**
          Constructs a address book object.

          @param format File format class.
        */
        AddressBook();
        virtual ~AddressBook();

        /**
          Requests a ticket for saving the addressbook. Calling this function locks
          the addressbook for all other processes. If the address book is already
          locked the function returns 0. You need the returned @ref Ticket object
          for calling the @ref save() function.

          @see save()
        */
        Ticket *requestSaveTicket( Resource *resource=0 );

        /**
          Load address book from file.
        */
        bool load();

        /**
          Save address book. The address book is saved to the file, the Ticket
          object has been requested for by @ref requestSaveTicket().

          @param ticket a ticket object returned by @ref requestSaveTicket()
        */
        bool save( Ticket *ticket );

        /**
          Returns a iterator for first entry of address book.
        */
        Iterator begin();

        /**
          Returns a const iterator for first entry of address book.
        */
        ConstIterator begin() const;

        /**
          Returns a iterator for first entry of address book.
        */
        Iterator end();

        /**
          Returns a const iterator for first entry of address book.
        */
        ConstIterator end() const;

        /**
          Removes all entries from address book.
        */
        void clear();

        /**
          Insert an Addressee object into address book. If an object with the same
          unique id already exists in the address book it it replaced by the new
          one. If not the new object is appended to the address book.
        */
        void insertAddressee( const Addressee & );

        /**
          Removes entry from the address book.
        */
        void removeAddressee( const Addressee & );

        /**
          This is like @ref removeAddressee() just above, with the difference that
          the first element is a iterator, returned by @ref begin().
        */
        void removeAddressee( const Iterator & );

        /**
          Find the specified entry in address book. Returns end(), if the entry
          couldn't be found.
        */
        Iterator find( const Addressee & );

        /**
          Find the entry specified by an unique id. Returns an empty Addressee
          object, if the address book does not contain an entry with this id.
        */
        Addressee findByUid( const QString & );

        /**
          Find all entries with the specified name in the address book. Returns
          an empty list, if no entries couldn't be found.
        */
        Addressee::List findByName( const QString & );

        /**
          Find all entries with the specified email address  in the address book.
          Returns an empty list, if no entries couldn't be found.
        */
        Addressee::List findByEmail( const QString & );

        /**
          Find all entries wich have the specified category in the address book.
          Returns an empty list, if no entries couldn't be found.
        */
        Addressee::List findByCategory( const QString & );

        /**
          Return a string identifying this addressbook.
        */
        virtual QString identifier();

        /**
          Used for debug output.
        */
        void dump() const;

        void emitAddressBookLocked() { emit addressBookLocked( this ); }
        void emitAddressBookUnlocked() { emit addressBookUnlocked( this ); }
        void emitAddressBookChanged() { emit addressBookChanged( this ); }

        /**
          Return list of all Fields known to the address book which are associated
          with the given field category.
        */
        Field::List fields( int category = Field::All );

        /**
          Add custom field to address book.

          @param label    User visible label of the field.
          @param category Ored list of field categories.
          @param key      Identifier used as key for reading and writing the field.
          @param app      String used as application key for reading and writing
                          the field.
        */
        bool addCustomField( const QString &label, int category = Field::All,
                             const QString &key = QString::null,
                             const QString &app = QString::null );

        /**
          Add address book resource.
        */
        bool addResource( Resource * );

        /**
          Remove address book resource.
        */
        bool removeResource( Resource * );

        /**
          Return pointer list of all resources.
        */
        QPtrList resources();

        /**
          Set the @p ErrorHandler, that is used by @ref error() to
          provide gui-independend error messages.
        */
        void setErrorHandler( ErrorHandler * );

        /**
          Shows gui independend error messages.
        */
        void error( const QString& );

        /**
          Query all resources to clean up their lock files
         */
        void cleanUp();

      signals:
        /**
          Emitted, when the address book has changed on disk.
        */
        void addressBookChanged( AddressBook * );

        /**
          Emitted, when the address book has been locked for writing.
        */
        void addressBookLocked( AddressBook * );

        /**
          Emitted, when the address book has been unlocked.
        */
        void addressBookUnlocked( AddressBook * );

      protected:
        void deleteRemovedAddressees();
        void setStandardResource( Resource * );
        Resource *standardResource();

      private:
        QPtrList mDummy; // Remove in KDE 4
        struct AddressBookData;
        AddressBookData *d;
    };

    QDataStream &operator<<( QDataStream &, const AddressBook & );
    QDataStream &operator>>( QDataStream &, AddressBook & );

    }

    #endif

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