Diffstat (limited to 'libopie2/opiepim/core/opimtemplatebase.h') (more/less context) (show whitespace changes)
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diff --git a/libopie2/opiepim/core/opimtemplatebase.h b/libopie2/opiepim/core/opimtemplatebase.h new file mode 100644 index 0000000..58cbfeb --- a/dev/null +++ b/libopie2/opiepim/core/opimtemplatebase.h @@ -0,0 +1,130 @@ +/* + This file is part of the Opie Project + Copyright (C) The Main Author <main-author@whereever.org> + =. Copyright (C) The Opie Team <opie-devel@handhelds.org> + .=l. + .>+-= + _;:, .> :=|. This program is free software; you can +.> <`_, > . <= redistribute it and/or modify it under +:`=1 )Y*s>-.-- : the terms of the GNU Library General Public +.="- .-=="i, .._ License as published by the Free Software + - . .-<_> .<> Foundation; either version 2 of the License, + ._= =} : or (at your option) any later version. + .%`+i> _;_. + .i_,=:_. -<s. 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 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 OTEMPLATEBASE_H +#define OTEMPLATEBASE_H + +/* OPIE */ +#include <opie2/opimrecord.h> + +/* QT */ +#include <qarray.h> + +namespace Opie { +/** + * Templates do not have a base class, This is why + * we've this class + * this is here to give us the possibility + * to have a common base class + * You may not want to use that interface internaly + * POOR mans interface + */ +class OPimBasePrivate; +struct OPimBase { + /** + * return the rtti + */ + virtual int rtti()= 0; + virtual OPimRecord* record()const = 0; + virtual OPimRecord* record(int uid)const = 0; + virtual bool add( const OPimRecord& ) = 0; + virtual bool remove( int uid ) = 0; + virtual bool remove( const OPimRecord& ) = 0; + virtual void clear() = 0; + virtual bool load() = 0; + virtual bool save() = 0; + virtual QArray<int> records()const = 0; + /* + * ADD editing here? + * -zecke + */ +private: + OPimBasePrivate* d; + +}; +/** + * internal template base + * T needs to implement the copy c'tor!!! + */ +class OTemplateBasePrivate; +template <class T = OPimRecord> +class OTemplateBase : public OPimBase { +public: + enum CacheDirection { Forward=0, Reverse }; + OTemplateBase() { + }; + virtual ~OTemplateBase() { + } + virtual T find( int uid )const = 0; + + /** + * read ahead find + */ + virtual T find( int uid, const QArray<int>& items, + uint current, CacheDirection dir = Forward )const = 0; + virtual void cache( const T& )const = 0; + virtual void setSaneCacheSize( int ) = 0; + + /* reimplement of OPimBase */ + int rtti(); + OPimRecord* record()const; + OPimRecord* record(int uid )const; + static T* rec(); + +private: + OTemplateBasePrivate *d; +}; + +/* + * implementation + */ +template <class T> +int +OTemplateBase<T>::rtti() { + return T::rtti(); +} +template <class T> +OPimRecord* OTemplateBase<T>::record()const { + T* t = new T; + return t; +} +template <class T> +OPimRecord* OTemplateBase<T>::record(int uid )const { + T t2 = find(uid ); + T* t1 = new T(t2); + + return t1; +}; +template <class T> +T* OTemplateBase<T>::rec() { + return new T; +} + +} + +#endif |