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/* This file is part of the KDE project
Copyright (C) 2005 David Faure <faure@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KOUSERSTYLECOLLECTION_H
#define KOUSERSTYLECOLLECTION_H
class KoUserStyle;
#include <koffice_export.h>
#include <tqstringlist.h>
/**
* Generic style collection class, for all "user styles" (see KoUserStyle).
* To use this for a particular kind of style, derive from KoUserStyle (to add the properties)
* and derive from KoUserStyleCollection (to add loading, saving, as well as
* re-defined findStyle and addStyle in order to cast to the correct style class).
*/
class KOTEXT_EXPORT KoUserStyleCollection
{
public:
/**
* Constructor
* @param prefix used by generateUniqueName to prefix new style names
* (to avoid clashes between different kinds of styles)
*/
KoUserStyleCollection( const TQString& prefix );
/**
* Destructor
* Deletes all styles.
*/
~KoUserStyleCollection();
/**
* Erase all styles
*/
void clear();
/**
* @return true if the collection is empty
*/
bool isEmpty() const { return m_styleList.isEmpty(); }
/**
* @return the number of items in the collection
*/
int count() const { return m_styleList.count(); }
/**
* @return the index of @p style in the collection
*/
int indexOf( KoUserStyle* style ) const { return m_styleList.findIndex( style ); }
/**
* Return the list of all styles in the collection.
*/
TQValueList<KoUserStyle *> styleList() const { return m_styleList; }
/**
* Generate a new unique name, to create a style whose internal name
* differs from the internal name of all existing styles.
* The prefix passed to the constructor is used here.
*/
TQString generateUniqueName() const;
/**
* Return the list composed of the display-name of each style in the collection
*/
TQStringList displayNameList() const;
/**
* Find style based on the internal name @p name.
* If the style with that name can't be found, then<br>
* 1) if @p name equals @p defaultStyleName, return the first one, never 0<br>
* 2) otherwise return 0
*/
KoUserStyle* findStyle( const TQString & name, const TQString& defaultStyleName ) const;
/**
* Find style based on the display name @p displayName.
* There could be 0, 1 or more than 1 style with that name,
* the method simply returns the first one found, or 0 if none was found.
* This is mostly useful to detect similar styles when importing styles
* from another document.
*/
KoUserStyle* findStyleByDisplayName( const TQString& displayName ) const;
/**
* Remove @p style from the collection. If the style isn't in the collection, nothing happens.
* The style mustn't be deleted yet; it is stored into a list of styles to delete in clear().
*/
void removeStyle( KoUserStyle *style );
/**
* Reorder the styles in the collection.
* @param list the list of internal names of the styles
* WARNING, if an existing style isn't listed, it will be lost
*/
void updateStyleListOrder( const TQStringList& list );
/**
* Try adding @p sty to the collection.
* From the moment of this call, the collection owns the style.
*
* Either this succeeds, and @p sty is returned, or a style with the exact same
* internal name and display name is present already, in which case the existing style
* is updated, @p sty is deleted, and the existing style is returned.
*
* WARNING: @p sty can be deleted; use the returned value for any further processing.
*/
KoUserStyle* addStyle( KoUserStyle* sty );
/**
* @return true if this collection only holds the default styles provided by the application
* When true, those styles don't need to be saved.
*/
bool isDefault() const { return m_default; }
/**
* Set whether this collection only holds the default styles provided by the application
*/
void setDefault( bool d ) { m_default = d; }
protected:
KoUserStyleCollection( const KoUserStyleCollection& rhs ); ///< forbidden
void operator=( const KoUserStyleCollection& rhs ); ///< forbidden
TQValueList<KoUserStyle *> m_styleList;
private:
TQValueList<KoUserStyle *> m_deletedStyles;
const TQString m_prefix;
// can become d pointer if needed
mutable KoUserStyle *m_lastStyle; ///< Last style that was searched
bool m_default;
bool m_unused1;
bool m_unused2;
bool m_unused3;
};
#endif /* KOUSERSTYLECOLLECTION_H */
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