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120 lines
3.2 KiB
120 lines
3.2 KiB
/* This file is part of the KDE project
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Copyright (C) 2001, 2002, 2003 The Karbon Developers
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __VLAYER_H__
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#define __VLAYER_H__
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#include "vgroup.h"
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#include <koffice_export.h>
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class TQDomElement;
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class DCOPObject;
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/**
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* VLayer manages a set of vobjects. It keeps the objects from bottom to top
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* in a list, ie. objects higher in the list are drawn above lower objects.
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* Objects in a layer can be manipulated and worked on independant of objects
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* in other layers.
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*/
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class KARBONBASE_EXPORT VLayer : public VGroup
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{
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public:
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/**
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* Constructs a new layer object that is child of parent and has the given state.
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*
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* @param parent the new object's parent
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* @param state the new object's state
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*/
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VLayer( VObject* parent, VState state = normal );
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/**
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* Copy constructor.
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*
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* @param layer the layer to copy properties from
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*/
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VLayer( const VLayer& layer );
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virtual ~VLayer();
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virtual DCOPObject* dcopObject();
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virtual void draw( VPainter *painter, const KoRect* rect = 0L ) const;
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virtual void save( TQDomElement& element ) const;
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virtual void saveOasis( KoStore *store, KoXmlWriter *docWriter, KoGenStyles &mainStyles, int &index ) const;
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virtual void load( const TQDomElement& element );
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virtual VLayer* clone() const;
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virtual void accept( VVisitor& visitor );
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/**
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* Moves the object to the top of the list.
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*
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* When the object is at the top this method has no effect.
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*
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* @param object the object to move
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*/
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void bringToFront( const VObject& object );
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/**
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* Moves the object one step up the list.
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*
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* When the object is at the top this method has no effect.
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*
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* @param object the object to move
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*/
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void upwards( const VObject& object );
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/**
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* Moves the object one step down the list.
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*
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* When the object is at the bottom this method has no effect.
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*
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* @param object the object to move
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*/
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void downwards( const VObject& object );
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/**
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* Moves the object to the end of the list.
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*
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* When the object is at the bottom this method has no effect.
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*
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* @param object the object to move
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*/
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void sendToBack( const VObject& object );
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/**
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* Selects or unselects the layer
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*
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* @param state the new selection state
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*/
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void setSelected( bool state ) { setState( state ? VObject::selected : VObject::normal ); }
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/**
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* Returns the selection state of the layer
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*
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* @return the actual selection state
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*/
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bool selected() { return state() == VObject::selected; }
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};
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#endif
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